709  
FOUS53 KLOT 202215  
PFMLOT  
 
POINT FORECAST MATRICES  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
415 PM CST TUE FEB 20 2018  
 
ILZ014-211000-  
CHICAGO O'HARE INTERNATIONAL AIRPORT-COOK IL  
41.99N 87.91W ELEV. 667 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 26 34 26 39 32  
TEMP 44 39 33 29 27 27 32 34 29 28 28 28 26 33 39 38 36 32 32 32 32  
DEWPT 44 38 30 24 21 18 19 19 20 21 22 23 24 26 26 26 27 28 29 31 32  
RH 100 96 89 81 78 68 58 54 69 75 78 81 92 75 59 62 69 85 88 96100  
WIND DIR W NW NW NW NW N N N NE NE NE NE NE E E E E E SE SE SE  
WIND SPD 11 12 16 16 13 12 12 12 9 6 8 8 8 10 10 9 9 9 9 6 6  
CLOUDS OV OV OV OV B1 B1 SC SC B1 B1 B2 B2 B2 B1 B1 B2 OV B2 OV OV OV  
POP 12HR 100 5 10 10 50  
QPF 12HR 0.51 0 0 0 0.04  
SNOW 12HR T 00-00 00-00  
FRZG RAIN S S C C L  
RAIN D D D S  
SLEET C C  
SNOW C  
TSTMS  
WIND CHILL 38 31 22 17 16 16 23 25 20 21 20 20 18 25 32 32 29 24 24 26 26  
MIN CHILL 38 22 15 14 20 20 18 19 29 24 25  
FLOOD A A A A  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 45 32 44 35 45 30 46 31 43  
TEMP 42 42 35 32 41 44 40 35 44 43 34 31 45 42 34 32 42 39  
DEWPT 37 36 33 31 33 38 38 34 30 30 27 26 29 29 28 26 28 28  
PWIND DIR SW NW NE S W SW SW W NW  
WIND CHAR LT LT GN GN GN LT GN GN GN  
AVG CLOUDS OV B2 B2 B2 B2 B2 B2 B2 B1 SC SC SC SC SC SC SC SC SC  
POP 12HR 60 30 20 70 10 5 5 20 5  
FRZG RAIN L  
RAIN L C S S L C S S  
SNOW C S C S S  
 

 
ILZ003-211000-  
GREATER ROCKFORD AIRPORT-WINNEBAGO IL  
42.20N 89.11W ELEV. 745 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 22 31 22 38 31  
TEMP 35 31 27 24 22 23 28 31 25 24 22 22 22 29 37 37 34 31 31 31 31  
DEWPT 35 29 22 17 16 15 15 16 16 17 17 19 19 23 25 26 26 27 29 30 31  
RH 100 92 81 74 77 71 58 53 68 74 81 88 88 78 61 64 72 85 92 96100  
WIND DIR W NW NW NW N N N N N NE NE NE NE E E E E E SE SE SE  
WIND SPD 10 12 14 13 11 11 10 9 6 8 8 9 9 11 12 11 11 10 10 6 6  
CLOUDS OV OV OV B2 B1 SC SC SC B1 B2 B2 B2 B2 B2 B2 B2 OV OV OV OV OV  
POP 12HR 60 0 10 10 50  
QPF 12HR 0.05 0 0 0 0.04  
SNOW 12HR 00-00 00-00 00-00  
FRZG RAIN C S C C C  
RAIN L S  
SLEET C  
SNOW S  
TSTMS  
WIND CHILL 27 21 15 12 10 12 19 23 17 15 13 12 12 19 29 29 26 22 22 24 24  
MIN CHILL 27 15 10 10 17 13 12 14 26 22 23  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 43 28 45 32 42 27 44 28 42  
TEMP 41 38 31 29 43 43 40 32 42 38 32 28 43 39 32 29 42 35  
DEWPT 36 33 29 27 32 36 36 30 29 27 26 23 29 28 28 23 28 27  
PWIND DIR SW N E SE W SW SW W NW  
WIND CHAR LT LT GN GN GN LT GN GN GN  
AVG CLOUDS OV B2 B1 B1 B1 B2 B2 B2 SC FW SC SC SC SC SC SC SC SC  
POP 12HR 40 20 20 80 10 5 10 30 5  
FRZG RAIN C  
RAIN C S D C C  
SNOW S C C S  
 

 
ILZ014-211000-  
CHICAGO MIDWAY AIRPORT-COOK IL  
41.78N 87.76W ELEV. 612 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 28 35 27 38 34  
TEMP 47 41 36 31 29 29 34 35 31 29 27 29 27 32 38 38 38 35 35 34 36  
DEWPT 47 41 33 26 23 20 20 20 21 22 23 24 24 26 26 27 28 29 30 31 34  
RH 100100 89 81 78 69 56 54 66 75 85 81 88 78 62 64 67 78 82 89 92  
WIND DIR W NW NW NW NW N N N NE NE NE NE NE NE E E E E SE SE SE  
WIND SPD 10 12 16 16 13 12 12 12 9 8 9 9 9 10 10 9 8 8 10 6 5  
CLOUDS OV OV OV OV B2 B1 B1 B1 B1 B1 B2 B2 B2 B1 B1 B2 OV B2 OV OV OV  
POP 12HR 100 5 20 10 50  
QPF 12HR 0.68 0 0 0 0.04  
SNOW 12HR T 00-00 00-00  
RAIN D D D S S C C L  
SLEET L  
SNOW S S  
TSTMS  
WIND CHILL 34 26 20 18 19 25 26 23 21 18 20 18 24 31 32 32 28 27 28  
MIN CHILL 26 18 17 23 18 18 19 31 27 27  
FLOOD A A A A  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 45 34 45 37 45 31 46 33 44  
TEMP 43 44 37 34 41 45 42 37 45 42 36 32 45 43 36 34 43 41  
DEWPT 37 37 34 32 34 38 39 35 31 30 29 26 29 29 29 27 30 29  
PWIND DIR SW NW E S W SW S W NW  
WIND CHAR LT LT GN GN GN LT GN GN GN  
AVG CLOUDS OV B2 B2 B2 B2 B2 OV B2 B1 SC SC SC SC SC SC SC SC SC  
POP 12HR 60 40 30 70 10 5 5 30 5  
RAIN L C C C L C S C  
SNOW C C C  
 

 
ILZ021-211000-  
MORRIS-GRUNDY IL  
41.43N 88.42W ELEV. 569 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 26 35 26 39 32  
TEMP 43 38 33 29 27 27 32 35 29 26 26 26 27 32 38 38 35 32 32 32 34  
DEWPT 43 37 31 24 21 20 20 22 21 22 22 23 24 26 27 29 29 29 30 32 33  
RH 100 96 92 81 78 74 61 59 72 85 85 88 88 78 64 70 78 88 92100 96  
WIND DIR W NW NW NW N N N N NE NE NE NE NE E E E E E SE SE SE  
WIND SPD 12 13 14 14 12 12 11 9 6 8 9 10 8 11 11 10 8 8 9 8 5  
CLOUDS OV OV OV OV B2 B1 SC B1 B1 B1 B2 B2 B2 B2 B2 B2 OV B2 OV OV OV  
POP 12HR 100 5 20 10 70  
QPF 12HR 0.67 0 0 0 0.06  
SNOW 12HR T 00-00 00-00  
FRZG RAIN S L L  
RAIN D D D S C  
SLEET S C  
SNOW S S  
TSTMS  
WIND CHILL 36 30 23 18 16 16 23 28 22 18 17 16 19 23 31 31 28 25 24 25  
MIN CHILL 36 23 16 15 22 17 16 20 28 24 24  
FLOOD A A A A  
WINTER WEATH Y Y  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 46 32 47 35 45 29 47 30 45  
TEMP 44 42 35 33 45 46 44 35 45 40 33 30 46 42 35 31 44 40  
DEWPT 39 37 33 31 36 39 39 33 32 30 28 26 31 30 30 27 30 29  
PWIND DIR SW N E S W SW SW W NW  
WIND CHAR LT LT GN GN BZ LT GN GN GN  
AVG CLOUDS OV B2 B2 B2 B2 B2 OV B2 SC FW SC SC FW SC SC SC SC SC  
POP 12HR 50 40 30 70 5 5 5 30 0  
RAIN C C C C L C C  
SNOW C C C C  
 

 
ILZ006-211000-  
WAUKEGAN-LAKE IL  
42.42N 87.87W ELEV. 745 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 24 32 25 37 31  
TEMP 40 36 31 27 25 25 30 32 27 25 26 26 28 33 37 37 37 33 33 31 31  
DEWPT 40 35 26 20 19 17 17 18 18 19 20 22 22 24 24 25 26 27 29 29 31  
RH 100 96 81 74 78 71 58 56 68 78 78 85 78 69 59 61 64 78 85 92100  
WIND DIR W NW NW NW NW NW N N N NE NE NE NE E E E E E SE SE SE  
WIND SPD 12 12 17 17 13 13 11 8 6 8 9 10 10 12 12 11 11 12 12 10 9  
CLOUDS OV OV OV OV B1 B1 SC SC SC B1 B2 B2 B2 B2 B1 B2 OV B2 OV OV OV  
POP 12HR 90 0 10 10 50  
QPF 12HR 0.18 0 0 0 0.04  
SNOW 12HR 00-00 00-00 00-00  
FRZG RAIN C C L  
RAIN D D S S C  
SLEET C  
SNOW S  
WIND CHILL 33 28 20 14 13 13 20 25 20 16 17 16 19 24 29 29 29 24 24 22 23  
MIN CHILL 33 20 13 12 20 16 16 19 29 24 22  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 43 29 42 33 43 28 43 30 41  
TEMP 41 39 33 30 41 39 39 33 43 39 32 29 42 38 33 31 41 36  
DEWPT 35 34 31 29 32 35 36 32 29 29 26 24 28 28 27 26 28 27  
PWIND DIR SW NW NE SE W SW SW W NW  
WIND CHAR LT LT GN GN BZ GN GN GN GN  
AVG CLOUDS OV B2 B2 B1 B1 B2 OV B2 B1 SC SC SC SC SC SC B1 SC SC  
POP 12HR 60 20 20 80 20 5 10 20 10  
FRZG RAIN L  
RAIN L S S D C S S  
SNOW S S C S S S  
 

 
ILZ021-211000-  
PONTIAC-LIVINGSTON IL  
40.92N 88.63W ELEV. 648 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 27 35 27 41 34  
TEMP 45 38 33 29 28 28 33 35 31 27 27 28 29 33 39 41 38 34 35 34 37  
DEWPT 45 38 32 27 24 22 22 24 23 23 24 25 25 27 30 31 32 31 33 34 36  
RH 100100 96 92 85 78 63 64 72 85 88 88 85 78 70 67 79 89 92100 96  
WIND DIR NW NW NW NW N N N N NE NE NE NE NE E E E E E E SE SE  
WIND SPD 11 13 14 14 12 12 11 11 10 11 11 11 10 11 11 10 9 8 10 8 6  
CLOUDS OV OV OV OV B2 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 OV B2 OV OV OV  
POP 12HR 100 5 20 20 80  
QPF 12HR 0.83 0 0 0 0.09  
SNOW 12HR T 00-00 00-00  
FRZG RAIN C S  
RAIN D D D C C D D C  
SLEET L  
SNOW S S S S  
TSTMS  
WIND CHILL 39 29 23 18 17 17 24 27 22 17 17 18 20 24 32 35 31 27 27 27  
MIN CHILL 39 23 17 16 21 15 17 20 30 26 26  
FLOOD A A A A  
WINTER WEATH Y Y  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 47 34 50 36 47 30 49 31 46  
TEMP 45 44 38 34 47 50 46 36 46 42 35 31 48 44 35 32 45 41  
DEWPT 42 40 36 34 40 43 41 34 33 32 30 28 33 33 31 29 33 30  
PWIND DIR SW N E S W SW SW W NW  
WIND CHAR LT LT GN GN BZ LT GN GN GN  
AVG CLOUDS OV B2 B2 B2 B2 OV OV B2 SC FW SC SC FW SC SC SC SC FW  
POP 12HR 40 50 50 70 5 0 5 30 0  
RAIN C C C C L C C  
SNOW C C  
 

 
INZ002-211000-  
VALPARAISO-PORTER IN  
41.45N 87.00W ELEV. 770 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 29 35 27 40 32  
TEMP 56 45 38 32 30 30 34 34 29 28 29 28 28 33 38 40 36 33 32 33 35  
DEWPT 55 45 38 30 26 23 24 24 24 23 24 24 24 25 26 28 29 28 29 31 33  
RH 96100100 92 85 75 66 66 81 81 81 85 85 72 62 62 75 82 88 92 92  
WIND DIR SW NW NW N N N N N N NE NE NE NE E E E E E SE SE SE  
WIND SPD 10 12 14 17 16 14 14 13 9 10 9 10 10 11 11 10 9 11 11 9 6  
CLOUDS OV OV OV OV OV B2 B2 B1 B1 B1 B2 B2 B2 B1 B1 B2 B2 B2 OV OV OV  
POP 12HR 100 20 20 10 70  
QPF 12HR 1.23 0 0 0 0.09  
SNOW 12HR T 00-00 00-00  
FRZG RAIN D L  
RAIN D D D S S L D  
SNOW S S S  
TSTMS S S  
WIND CHILL 39 29 21 19 19 24 25 20 19 20 19 19 24 31 33 29 24 23 25 29  
MIN CHILL 29 19 17 20 19 17 20 29 23 24  
FLOOD A A A A  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 46 34 47 38 45 30 45 32 44  
TEMP 42 43 37 34 44 47 44 38 45 40 34 31 44 41 36 33 43 39  
DEWPT 38 38 35 33 37 40 40 35 32 31 28 26 29 30 30 27 30 28  
PWIND DIR SW NW E S W SW S SW NW  
WIND CHAR LT LT GN GN BZ LT GN GN GN  
AVG CLOUDS OV B2 B2 B2 B2 B2 OV B2 B1 SC SC SC SC SC SC SC SC SC  
POP 12HR 80 40 40 60 10 5 5 30 5  
RAIN D C C C L C S C  
SNOW C C C  
 

 
ILZ005-211000-  
WOODSTOCK-MCHENRY IL  
42.31N 88.44W ELEV. 950 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 22 32 22 37 30  
TEMP 37 34 29 25 22 24 29 32 25 24 23 23 23 31 37 36 34 31 30 30 30  
DEWPT 37 32 24 19 17 16 16 17 16 18 18 19 20 23 24 25 25 26 28 30 30  
RH 100 92 81 78 81 71 58 53 68 77 81 84 88 72 59 64 69 81 92100100  
WIND DIR W NW NW NW NW NW N N N NE NE NE NE E E E E E SE SE SE  
WIND SPD 11 13 16 14 12 12 10 8 6 6 8 9 9 12 12 11 10 10 10 8 5  
CLOUDS OV OV OV OV B1 SC SC SC SC B1 B2 B2 B2 B2 B2 B2 OV OV OV OV OV  
POP 12HR 80 0 10 10 50  
QPF 12HR 0.10 0 0 0 0.04  
SNOW 12HR 00-00 00-00 00-00  
FRZG RAIN S C C C  
RAIN D L S  
SLEET C  
TSTMS  
WIND CHILL 29 25 17 12 10 12 20 25 17 16 14 13 13 21 29 28 26 22 21 22 24  
MIN CHILL 29 17 10 11 17 13 12 14 26 21 22  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 43 28 43 31 42 26 43 28 42  
TEMP 40 39 32 29 42 42 38 31 41 38 30 27 42 39 32 29 42 34  
DEWPT 35 34 30 27 32 35 35 30 29 28 25 23 28 28 27 24 28 27  
PWIND DIR SW NW E SE W SW SW W NW  
WIND CHAR LT LT GN GN GN LT GN GN GN  
AVG CLOUDS OV B2 B1 B1 B1 B2 B2 B2 B1 FW SC SC SC SC SC SC SC SC  
POP 12HR 50 20 20 80 10 5 10 30 5  
FRZG RAIN C  
RAIN C S S D C C  
SNOW S S C C S  
 

 
ILZ008-211000-  
OREGON-OGLE IL  
42.01N 89.33W ELEV. 697 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 22 31 23 38 31  
TEMP 35 31 27 25 23 24 28 31 26 25 23 23 23 30 37 37 34 32 32 31 32  
DEWPT 35 29 22 18 16 16 16 17 16 18 18 19 20 23 25 27 27 28 29 31 31  
RH 100 92 81 74 74 71 60 56 65 74 81 84 88 75 61 67 75 85 88100 96  
WIND DIR NW NW NW NW N N N N NE NE NE NE NE E E E E E SE SE S  
WIND SPD 11 13 14 13 11 12 11 9 6 8 9 9 9 11 12 11 11 9 9 8 5  
CLOUDS OV OV OV B2 B1 SC SC SC B1 B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV  
POP 12HR 70 0 10 10 60  
QPF 12HR 0.06 0 0 0 0.05  
SNOW 12HR 00-00 00-00 00-00  
FRZG RAIN C S L L C  
RAIN L S S L  
SLEET C S  
SNOW S  
TSTMS  
WIND CHILL 27 21 15 13 11 12 18 23 18 16 13 13 13 20 29 29 25 24 24 24 26  
MIN CHILL 27 15 10 10 17 12 12 14 24 22 23  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 43 29 45 31 43 26 45 28 43  
TEMP 41 38 31 30 44 42 40 31 43 38 30 27 44 40 33 29 43 37  
DEWPT 36 33 30 27 33 36 36 29 30 28 26 23 29 28 28 24 29 28  
PWIND DIR SW N E S W SW SW NW NW  
WIND CHAR LT LT GN GN GN LT GN GN GN  
AVG CLOUDS OV B2 B1 B1 B1 B2 B2 B2 SC FW SC SC SC SC SC SC SC SC  
POP 12HR 40 20 30 80 5 5 10 30 0  
FRZG RAIN C  
RAIN C S C D C C  
SNOW S S C C S  
 

 
ILZ011-211000-  
SYCAMORE-DEKALB IL  
41.98N 88.69W ELEV. 863 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 23 32 23 37 31  
TEMP 36 34 29 25 24 24 30 32 28 25 23 24 24 31 37 37 35 31 31 31 32  
DEWPT 36 32 25 20 18 17 18 18 18 19 19 20 21 24 25 27 26 28 29 31 31  
RH 100 92 85 81 77 74 60 56 66 78 84 84 88 75 61 67 69 88 92100 96  
WIND DIR W NW NW NW N N N N NE NE NE NE NE E E E E E SE SE SE  
WIND SPD 11 13 14 13 12 12 11 9 8 8 9 10 10 12 12 11 11 10 11 9 6  
CLOUDS OV OV OV OV B1 SC SC SC B1 B1 B2 B2 B2 B2 B2 B2 OV OV OV OV OV  
POP 12HR 90 0 10 10 60  
QPF 12HR 0.15 0 0 0 0.05  
SNOW 12HR 00-00 00-00 00-00  
FRZG RAIN S L L C  
RAIN D L S  
SLEET C  
TSTMS  
WIND CHILL 28 24 18 13 12 12 20 24 20 16 13 14 14 21 29 29 27 22 22 24 26  
MIN CHILL 28 18 11 11 20 13 13 15 26 22 22  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 43 29 44 32 42 27 44 28 42  
TEMP 41 38 32 30 43 43 40 32 42 38 31 28 43 39 33 29 42 35  
DEWPT 36 34 31 28 34 37 36 31 30 28 26 24 30 29 28 24 29 28  
PWIND DIR SW N E S W SW SW NW NW  
WIND CHAR LT LT GN GN BZ GN GN GN GN  
AVG CLOUDS OV B2 B2 B1 B1 B2 B2 B2 SC FW SC SC SC SC SC SC SC SC  
POP 12HR 50 20 20 70 10 5 10 30 5  
FRZG RAIN C  
RAIN C S S L C C  
SNOW S S C C S  
 

 
ILZ010-211000-  
DIXON-LEE IL  
41.85N 89.45W ELEV. 697 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 21 32 22 37 31  
TEMP 34 30 26 24 22 22 28 32 26 24 23 23 23 29 36 37 35 31 31 32 32  
DEWPT 34 29 22 18 15 15 16 17 17 18 17 19 20 23 26 28 27 28 29 31 31  
RH 100 96 85 77 74 74 60 53 68 77 77 84 88 78 67 70 72 88 92 96 96  
WIND DIR NW NW NW NW N N N N NE NE NE NE NE E E E E E SE SE SE  
WIND SPD 11 13 14 13 10 11 10 9 6 8 9 10 9 11 11 10 10 9 9 6 5  
CLOUDS OV OV OV B2 B1 SC SC SC B1 B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV  
POP 12HR 70 0 10 20 60  
QPF 12HR 0.06 0 0 0 0.06  
SNOW 12HR 00-00 00-00 00-00  
FRZG RAIN C S L L C  
RAIN L S S S  
SLEET C S  
SNOW S S S S  
WIND CHILL 26 19 14 12 11 11 19 24 18 15 13 12 13 19 28 30 27 23 23 25 26  
MIN CHILL 26 14 10 9 17 12 11 14 26 23 23  
WINTER WEATH Y Y Y  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 43 29 45 31 43 26 45 28 44  
TEMP 41 37 31 30 43 43 39 31 42 38 30 28 44 40 32 29 43 37  
DEWPT 36 34 30 27 33 36 36 29 30 28 26 23 30 28 27 24 29 28  
PWIND DIR SW N E S W SW SW NW NW  
WIND CHAR LT LT GN GN GN LT GN GN GN  
AVG CLOUDS OV B1 B1 B1 B1 B2 B2 B2 SC FW SC SC SC SC SC SC SC SC  
POP 12HR 40 20 30 80 5 5 10 30 0  
FRZG RAIN C  
RAIN C S C D C C  
SNOW S S C C  
 

 
ILZ012-211000-  
GENEVA-KANE IL  
41.88N 88.31W ELEV. 727 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 25 34 25 38 32  
TEMP 41 37 32 28 26 26 32 34 29 26 26 26 26 32 38 37 37 33 32 32 33  
DEWPT 41 35 27 22 19 18 18 19 19 21 21 22 22 25 26 27 27 28 29 31 32  
RH 100 92 81 78 74 71 56 54 66 81 81 85 85 75 62 67 67 82 88 96 96  
WIND DIR W NW NW NW N N N N NE NE NE NE NE NE E E E E SE SE SE  
WIND SPD 12 12 14 13 12 12 10 9 8 6 9 9 9 11 11 11 10 9 10 8 6  
CLOUDS OV OV OV OV B1 B1 SC SC B1 B1 B2 B2 B2 B2 B2 B2 OV B2 OV OV OV  
POP 12HR 100 0 10 10 50  
QPF 12HR 0.33 0 0 0 0.05  
SNOW 12HR 00-00 00-00 00-00  
FRZG RAIN L S C C  
RAIN D D S S C C  
SLEET L  
SNOW C  
TSTMS  
WIND CHILL 34 29 22 17 15 15 24 27 21 19 17 17 17 23 31 30 29 25 24 25 27  
MIN CHILL 33 22 14 14 20 16 16 16 26 22 22  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 45 30 45 34 44 28 45 29 43  
TEMP 42 41 34 31 43 45 41 34 44 39 32 29 44 41 33 30 42 38  
DEWPT 37 36 31 29 34 37 37 32 30 30 27 25 30 29 28 25 29 28  
PWIND DIR SW NW E S W SW SW NW NW  
WIND CHAR LT LT GN GN BZ LT GN GN GN  
AVG CLOUDS OV B2 B2 B2 B2 B2 B2 B2 SC SC SC SC SC SC SC SC SC SC  
POP 12HR 50 30 20 70 10 5 5 30 5  
RAIN C S S L C C  
SNOW C S C C S  
 

 
ILZ020-211000-  
YORKVILLE-KENDALL IL  
41.64N 88.45W ELEV. 618 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 25 35 25 39 32  
TEMP 41 37 32 28 25 26 32 35 28 26 25 26 25 32 38 38 37 34 32 32 33  
DEWPT 41 36 29 23 20 19 19 20 20 21 21 22 23 25 26 28 28 29 30 31 33  
RH 100 96 88 81 81 74 58 54 71 81 84 85 92 75 62 67 70 82 92 96100  
WIND DIR W NW NW NW N N N N NE NE NE NE NE NE E E E E SE SE SE  
WIND SPD 12 12 14 13 12 12 11 9 8 8 9 10 10 11 12 11 10 8 10 8 6  
CLOUDS OV OV OV OV B1 B1 SC B1 B1 B1 B2 B2 B2 B2 B2 B2 OV B2 OV OV OV  
POP 12HR 100 5 20 10 60  
QPF 12HR 0.53 0 0 0 0.05  
SNOW 12HR T 00-00 00-00  
FRZG RAIN D S L L  
RAIN D D S S L C  
SLEET L C  
SNOW C S S  
TSTMS  
WIND CHILL 34 29 22 17 14 15 23 28 20 18 16 16 15 23 30 31 30 27 24 25 27  
MIN CHILL 33 22 14 14 20 16 15 16 30 24 24  
FLOOD A A A A  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 45 31 46 34 44 28 46 30 43  
TEMP 43 41 35 32 44 45 43 34 43 40 32 29 45 42 35 31 42 38  
DEWPT 37 37 32 30 35 38 38 32 31 30 27 26 30 30 29 26 30 28  
PWIND DIR SW N E S W SW SW NW NW  
WIND CHAR LT LT GN GN BZ LT GN GN GN  
AVG CLOUDS OV B2 B2 B2 B2 B2 B2 B2 SC FW SC SC SC SC SC SC SC SC  
POP 12HR 50 40 30 70 5 5 5 30 5  
RAIN C C C C L C C  
SNOW C C C C  
 

 
ILZ013-211000-  
WHEATON-DUPAGE IL  
41.86N 88.11W ELEV. 752 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 26 35 26 38 33  
TEMP 43 38 33 29 27 27 32 35 30 27 27 27 26 32 37 38 37 34 34 33 35  
DEWPT 43 37 30 24 20 18 19 20 20 21 22 23 23 25 26 26 27 28 29 31 33  
RH 100 96 89 81 74 68 58 54 66 78 81 85 88 75 64 62 67 78 82 92 92  
WIND DIR W NW NW NW NW N N N NE NE NE NE NE E E E E E SE SE SE  
WIND SPD 11 12 14 14 12 12 10 9 8 6 8 9 8 10 11 10 9 8 9 6 5  
CLOUDS OV OV OV OV B1 B1 SC B1 B1 B1 B2 B2 B2 B2 B1 B2 OV B2 OV OV OV  
POP 12HR 100 5 10 10 50  
QPF 12HR 0.52 0 0 0 0.05  
SNOW 12HR T 00-00 00-00  
FRZG RAIN S S C  
RAIN D D D S S C C C  
SLEET C C  
SNOW C  
TSTMS  
WIND CHILL 37 30 23 18 16 16 24 28 22 20 19 18 18 24 30 31 30 27 27 27 29  
MIN CHILL 37 23 16 15 21 18 17 18 29 25 25  
FLOOD A A A A  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 45 32 45 35 45 29 46 31 43  
TEMP 43 42 35 33 42 45 42 35 44 42 33 30 45 42 35 32 42 39  
DEWPT 37 36 33 30 34 38 38 33 31 30 27 25 29 29 28 26 29 28  
PWIND DIR SW NW E S W SW SW W NW  
WIND CHAR LT LT GN GN GN LT GN GN GN  
AVG CLOUDS OV B2 B2 B2 B2 B2 B2 B2 B1 SC SC SC SC SC SC SC SC SC  
POP 12HR 50 30 20 70 10 5 5 30 5  
RAIN C C S S L C C S  
SNOW C S C C S  
 

 
ILZ019-211000-  
OTTAWA-LASALLE IL  
41.35N 88.84W ELEV. 494 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 26 35 26 39 33  
TEMP 41 37 32 29 27 27 32 35 30 28 26 27 27 31 38 39 36 33 33 33 34  
DEWPT 41 35 29 23 21 19 20 21 21 22 21 23 24 26 28 29 30 30 31 32 34  
RH 100 92 88 78 78 71 61 56 69 78 81 85 88 81 67 67 79 89 92 96100  
WIND DIR NW NW NW NW N N N N NE NE NE NE NE E E E E E SE SE SE  
WIND SPD 12 13 14 14 12 11 11 10 6 8 10 10 10 11 11 10 9 8 9 8 5  
CLOUDS OV OV OV OV B1 B1 SC B1 B1 B2 B2 B2 B2 B2 B2 B2 OV B2 OV OV OV  
POP 12HR 100 5 20 20 70  
QPF 12HR 0.56 0 0 0 0.06  
SNOW 12HR T 00-00 00-00  
FRZG RAIN D S C L L  
RAIN D D C S L L C  
SLEET D C  
SNOW C S S S S  
TSTMS  
WIND CHILL 33 28 22 18 16 17 23 27 22 20 16 17 17 22 31 32 29 26 25 26  
MIN CHILL 32 22 16 15 21 16 15 19 28 24 24  
FLOOD A A A A  
WINTER WEATH Y Y Y  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 46 32 48 35 46 29 47 31 45  
TEMP 44 42 35 33 45 47 44 35 45 42 34 30 46 43 36 32 44 40  
DEWPT 39 37 33 32 36 39 39 33 32 30 29 26 31 31 30 27 30 29  
PWIND DIR SW N E S W SW SW NW NW  
WIND CHAR LT LT GN GN BZ LT GN GN GN  
AVG CLOUDS OV B2 B2 B2 B2 B2 OV B2 SC FW SC SC FW SC SC SC SC SC  
POP 12HR 40 40 30 70 5 5 5 30 0  
RAIN C C C C L C C  
SNOW C C C  
 

 
ILZ022-211000-  
JOLIET-WILL IL  
41.53N 88.12W ELEV. 655 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 27 36 26 39 33  
TEMP 45 39 34 30 28 28 33 36 30 27 26 26 26 31 38 39 37 35 34 33 34  
DEWPT 45 39 32 26 22 19 20 21 21 22 23 24 24 26 27 28 28 29 31 32 33  
RH 100100 92 85 78 68 58 54 69 81 88 92 92 81 64 64 70 78 89 96 96  
WIND DIR W NW NW NW N N N NE NE NE NE NE NE E E E E E SE SE SE  
WIND SPD 11 12 14 14 11 11 10 9 6 8 9 10 9 11 10 9 8 8 9 8 5  
CLOUDS OV OV OV OV B2 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 OV B2 OV OV OV  
POP 12HR 100 5 20 10 60  
QPF 12HR 0.73 0 0 0 0.05  
SNOW 12HR T 00-00 00-00  
FRZG RAIN S  
RAIN D D D S S L L C  
SLEET L  
SNOW S S  
TSTMS  
WIND CHILL 39 32 24 19 18 18 25 29 23 19 17 16 17 21 31 33 31 28 26 26  
MIN CHILL 39 24 17 17 23 17 16 17 30 25 25  
FLOOD A A A A  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 46 33 47 36 45 29 47 31 44  
TEMP 44 43 36 34 44 47 43 36 44 42 34 30 46 43 35 32 43 40  
DEWPT 39 38 33 32 36 39 39 34 32 30 28 26 31 31 29 27 30 29  
PWIND DIR SW N E S W SW S W NW  
WIND CHAR LT LT GN GN GN LT GN GN GN  
AVG CLOUDS OV B2 B2 B2 B2 B2 OV B2 B1 SC SC SC FW SC SC SC SC SC  
POP 12HR 50 40 30 70 5 5 5 30 5  
RAIN C C C C L C C S  
SNOW C C C S  
 

 
ILZ023-211000-  
KANKAKEE-KANKAKEE IL  
41.12N 87.86W ELEV. 630 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 29 35 27 40 33  
TEMP 52 42 38 32 30 29 34 34 28 28 28 28 28 33 39 40 37 35 33 34 37  
DEWPT 52 42 36 30 25 22 23 24 23 24 25 25 25 27 29 30 31 30 32 33 35  
RH 100100 92 92 81 75 64 66 81 85 88 88 88 78 67 67 79 82 96 96 92  
WIND DIR W NW NW NW N N N NE NE NE NE NE NE E E E E E E SE SE  
WIND SPD 10 12 14 14 12 11 11 11 9 10 10 11 9 11 10 9 8 8 9 8 6  
CLOUDS OV OV OV OV B2 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 OV B2 OV OV OV  
POP 12HR 100 10 20 10 70  
QPF 12HR 1.11 0 0 0 0.08  
SNOW 12HR T 00-00 00-00  
FRZG RAIN D  
RAIN D D D S S L L L  
SLEET S  
SNOW S S  
TSTMS  
WIND CHILL 35 29 22 20 19 26 26 20 18 18 18 19 25 32 34 31 28 25 27 31  
MIN CHILL 28 20 19 20 17 17 19 31 25 25  
FLOOD A A A A  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 47 34 49 37 47 30 48 31 45  
TEMP 46 44 38 35 46 49 47 37 47 43 35 31 47 43 36 32 44 40  
DEWPT 41 40 36 34 39 42 41 35 33 31 30 28 32 32 31 28 32 30  
PWIND DIR SW N E S W SW S W NW  
WIND CHAR LT LT GN GN GN LT GN GN GN  
AVG CLOUDS OV B2 B2 B2 B2 OV OV B2 B1 SC SC SC SC SC SC SC SC SC  
POP 12HR 60 40 50 60 5 0 5 30 5  
RAIN L C C C L C C  
SNOW C C  
 

 
ILZ033-211000-  
WATSEKA-IROQUOIS IL  
40.78N 87.73W ELEV. 636 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 31 36 28 41 35  
TEMP 56 44 39 34 32 31 34 36 30 28 29 29 29 32 37 41 39 36 35 35 38  
DEWPT 56 44 38 32 28 24 25 26 25 25 26 27 27 29 31 32 33 33 34 35 37  
RH 100100 96 92 85 75 69 67 81 88 88 92 92 88 79 70 79 89 96100 96  
WIND DIR SW NW NW NW N N N NE NE NE NE NE NE E E E E E E E SE  
WIND SPD 10 13 14 14 13 12 11 12 10 11 10 11 11 12 11 10 9 9 10 8 6  
CLOUDS OV OV OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV B2 OV OV OV  
POP 12HR 100 20 30 20 80  
QPF 12HR 1.50 0 0.01 0 0.15  
SNOW 12HR T 00-00 T  
FRZG RAIN S  
RAIN D D D D S S S D D L  
SLEET S  
SNOW S C C S  
TSTMS S S  
WIND CHILL 38 31 24 22 21 26 28 21 18 20 19 19 23 29 35 33 29 27 29  
MIN CHILL 31 22 21 21 18 19 20 32 27 27  
FLOOD A A A A  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 48 36 50 39 48 31 49 32 46  
TEMP 46 44 40 36 48 50 49 39 48 43 36 32 48 44 37 33 45 40  
DEWPT 43 41 38 36 42 44 44 37 35 32 31 29 34 33 33 30 33 31  
PWIND DIR SW N E S W SW S W NW  
WIND CHAR LT LT GN GN BZ LT GN GN GN  
AVG CLOUDS OV B2 B2 OV OV OV OV B2 B1 SC FW SC SC SC SC SC SC SC  
POP 12HR 70 50 50 60 5 0 5 20 5  
RAIN L C C C L C S  
SNOW C C  
 

 
ILZ039-211000-  
PAXTON-FORD IL  
40.45N 88.10W ELEV. 776 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 30 36 29 42 36  
TEMP 57 44 39 33 31 30 33 36 31 29 30 30 31 34 39 42 40 36 37 38 40  
DEWPT 57 44 38 33 28 24 25 26 26 25 26 28 28 30 33 34 35 34 35 36 38  
RH 100100 96100 88 78 72 67 81 85 85 92 88 85 79 73 82 92 92 92 92  
WIND DIR W NW NW N N N N NE NE NE NE NE NE E E E E E E E SE  
WIND SPD 9 13 14 16 14 13 12 12 11 12 12 12 12 12 12 10 9 8 10 8 6  
CLOUDS OV OV OV OV OV B2 B2 B2 B2 B2 B2 B2 OV OV B2 B2 OV OV OV OV OV  
POP 12HR 100 20 30 20 80  
QPF 12HR 1.54 0 0.03 0 0.23  
SNOW 12HR T 00-00 T  
FRZG RAIN C S  
RAIN D D D D S S S D D L  
SLEET S S  
SNOW S C C  
TSTMS S S  
WIND CHILL 38 31 22 21 19 24 28 21 19 20 20 21 25 31 36 34 30 30 32  
MIN CHILL 31 20 18 20 19 19 23 33 29 30  
FLOOD A A A A  
WINTER WEATH Y Y  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 49 38 52 39 49 32 50 33 47  
TEMP 48 46 42 38 49 52 51 39 49 43 37 33 49 45 38 34 46 41  
DEWPT 45 43 40 38 43 46 45 36 35 33 31 30 35 34 33 30 33 31  
PWIND DIR SW N E SW W SW S W NW  
WIND CHAR LT LT GN GN BZ LT GN GN GN  
AVG CLOUDS OV B2 B2 OV OV OV OV B2 SC FW FW SC FW SC SC SC SC FW  
POP 12HR 70 60 60 50 5 0 5 20 5  
RAIN L L L L C C S  
 

 
INZ001-211000-  
CROWN POINT-LAKE IN  
41.42N 87.34W ELEV. 697 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 30 35 27 39 33  
TEMP 54 45 39 33 31 30 34 34 29 28 28 28 27 33 38 39 37 34 33 34 36  
DEWPT 54 45 37 31 26 23 23 23 23 23 24 24 25 26 26 28 29 29 30 31 34  
RH 100100 92 92 81 75 64 64 78 81 85 85 92 75 62 64 72 82 89 89 92  
WIND DIR SW NW NW N N N N N N NE NE NE NE E E E E E SE SE SE  
WIND SPD 10 11 14 16 13 12 13 13 10 10 10 10 9 11 11 9 8 10 10 9 6  
CLOUDS OV OV OV OV OV B2 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 OV B2 OV OV OV  
POP 12HR 100 10 20 10 70  
QPF 12HR 1.11 0 0 0 0.08  
SNOW 12HR T 00-00 00-00  
FRZG RAIN S S  
RAIN D D D D S S L L L  
SLEET S  
SNOW S S  
TSTMS S S  
WIND CHILL 39 30 22 20 20 24 25 21 19 19 19 18 24 31 33 31 26 25 27 30  
MIN CHILL 29 19 19 20 17 17 20 31 24 24  
FLOOD A A A A  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 45 34 48 38 46 30 46 32 44  
TEMP 43 43 37 34 44 48 46 38 46 42 35 31 45 42 36 33 44 39  
DEWPT 39 39 35 33 37 41 40 36 32 31 28 27 30 30 30 28 30 29  
PWIND DIR SW N E S W SW S W NW  
WIND CHAR LT LT GN GN BZ LT GN GN GN  
AVG CLOUDS OV B2 B2 B2 B2 B2 OV B2 B1 SC SC SC SC SC SC SC SC SC  
POP 12HR 70 40 40 70 10 5 5 20 5  
RAIN L C C C L C S S  
SNOW C C S  
 

 
INZ010-211000-  
KENTLAND-NEWTON IN  
40.77N 87.45W ELEV. 673 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 32 36 29 41 35  
TEMP 57 47 41 35 33 32 35 36 31 29 29 29 29 32 37 41 39 35 35 35 38  
DEWPT 56 47 41 34 30 25 26 26 25 25 26 27 28 29 31 32 33 32 33 34 37  
RH 96100100 96 89 75 69 67 78 85 88 92 96 88 79 70 79 89 92 96 96  
WIND DIR SW NW NW NW N N N N NE NE NE NE NE E E E E E E E SE  
WIND SPD 11 12 14 14 12 11 12 12 10 10 10 11 11 12 12 10 9 10 10 8 6  
CLOUDS OV OV OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV OV OV  
POP 12HR 100 30 30 20 80  
QPF 12HR 1.59 0 0.02 0 0.15  
SNOW 12HR T 00-00 T  
FRZG RAIN S  
RAIN D D D D S S S D D D  
SLEET C  
SNOW C C S  
TSTMS S S  
WIND CHILL 33 25 24 23 26 28 22 20 20 19 19 23 29 35 33 27 27 28  
MIN CHILL 33 23 23 22 19 19 20 32 27 28  
FLOOD A A A A  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 48 36 50 40 47 31 49 33 46  
TEMP 46 44 39 36 47 50 50 40 47 41 35 32 48 44 37 34 46 39  
DEWPT 43 41 39 36 42 43 44 37 35 32 30 29 33 33 32 30 32 30  
PWIND DIR SW N E S W SW S W NW  
WIND CHAR LT LT GN GN BZ LT GN GN GN  
AVG CLOUDS OV B2 B2 OV OV OV OV B2 B1 SC FW SC SC SC SC SC SC SC  
POP 12HR 80 50 60 50 10 0 5 20 5  
RAIN D C L C C C S  
SNOW C  
 

 
INZ011-211000-  
RENNSSELAER-JASPER IN  
40.94N 87.15W ELEV. 661 FT  
415 PM CST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 32 36 29 41 34  
TEMP 58 49 42 36 33 32 35 36 32 29 30 30 30 34 39 41 39 35 34 35 38  
DEWPT 57 49 42 35 30 25 26 26 25 25 26 27 27 28 29 30 31 31 32 33 36  
RH 96100100 96 89 75 69 67 75 85 85 88 88 78 67 65 73 85 92 92 92  
WIND DIR SW NW NW N N N N N N NE NE NE NE E E E E E E SE SE  
WIND SPD 12 11 14 14 13 12 13 12 10 11 10 11 10 12 11 10 9 10 10 8 8  
CLOUDS OV OV OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV OV OV  
POP 12HR 100 30 30 20 70  
QPF 12HR 1.60 0 0.02 0 0.13  
SNOW 12HR T 00-00 T  
RAIN D D D D S S L L D  
SLEET C  
SNOW C C S S  
TSTMS S S  
WIND CHILL 34 27 23 23 26 27 23 20 21 20 21 26 32 34 33 27 26 28 32  
MIN CHILL 34 23 23 22 19 19 20 32 26 27  
FLOOD A A A A  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 48 36 50 40 48 30 49 33 46  
TEMP 47 45 41 36 47 50 49 40 48 42 36 31 48 43 37 34 46 39  
DEWPT 42 41 38 36 41 42 44 37 35 31 30 28 32 31 32 30 32 29  
PWIND DIR SW N E S W SW S SW NW  
WIND CHAR LT LT GN GN BZ LT GN GN GN  
AVG CLOUDS OV B2 B2 OV OV OV OV B2 B1 SC FW SC SC SC SC SC SC SC  
POP 12HR 80 50 50 60 10 5 10 20 5  
RAIN D C C C L C S  
SNOW C  
 

 
INZ019-211000-  
FOWLER-BENTON IN  
40.62N 87.32W ELEV. 812 FT  
515 PM EST TUE FEB 20 2018  
 
DATE 02/20/18 WED 02/21/18 THU 02/22/18 FRI  
UTC 3HRLY 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11  
EST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
MIN/MAX 32 36 30 41 35  
TEMP 63 56 46 38 35 32 33 36 33 30 30 31 31 32 37 41 41 37 35 36 38  
DEWPT 59 55 46 38 33 28 26 27 26 26 27 28 29 30 31 32 33 33 34 35 37  
RH 87 96100100 92 85 75 69 75 85 88 88 92 92 79 70 73 85 96 96 96  
WIND DIR SW NW NW NW N N N N NE NE NE NE NE E E E E E E E SE  
WIND SPD 18 12 13 16 14 12 12 13 12 11 11 12 12 12 12 10 9 9 10 9 8  
WIND GUST 29  
CLOUDS OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 OV OV B2 B2 B2 B2 OV OV OV  
POP 12HR 100 100 40 40 80  
QPF 12HR 1.82 0.14 0.03 0.01 0.17  
SNOW 12HR 00-00 00-00 T  
FRZG RAIN C C S  
RAIN D D D D D S S S S D D  
SLEET C C S  
SNOW S C C  
TSTMS C S S  
WIND CHILL 29 25 23 24 27 24 20 20 21 21 23 29 35 35 30 28 29 32  
MIN CHILL 39 24 23 24 20 20 21 31 27 27  
FLOOD A A A A A  
 
DATE 02/23/18 SAT 02/24/18 SUN 02/25/18 MON 02/26/18 TUE 02/27/18  
UTC 6HRLY 17 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 23  
EST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
 
MAX/MIN 49 38 51 41 48 31 49 33 46  
TEMP 45 48 43 38 46 50 51 42 47 44 37 31 46 46 39 33 44 40  
DEWPT 44 44 40 38 42 45 45 39 36 33 30 29 33 32 32 30 33 30  
PWIND DIR SW N E S W SW S SW NW  
WIND CHAR LT LT GN GN BZ LT GN GN GN  
AVG CLOUDS OV B2 B2 OV OV OV OV B2 B1 SC FW SC SC SC SC SC SC SC  
POP 12HR 80 60 60 60 60 0 5 20 10  
RAIN D D L L L C L L S S  
 

 
 
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