428  
FOUS54 KMRX 211914  
PFMMRX  
 
POINT FORECAST MATRICES  
NATIONAL WEATHER SERVICE MORRISTOWN TN  
314 PM EDT SAT APR 21 2018  
 
TNZ017-220900-  
TRI CITIES AIRPORT-SULLIVAN TN  
36.50N 82.41W ELEV. 1536 FT  
314 PM EDT SAT APR 21 2018  
 
DATE 04/21/18 SUN 04/22/18 MON 04/23/18 TUE  
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 43 71 47 63 50  
TEMP 70 65 54 47 43 47 59 67 71 65 58 53 50 48 56 60 62 60 56 53 52 51  
DEWPT 29 34 37 36 35 36 38 37 38 41 44 43 44 42 47 48 49 46 48 47 49 49  
RH 22 31 52 65 73 65 45 33 30 41 59 69 80 80 72 64 62 60 74 80 89 93  
WIND DIR SW E SE SE E SE SE SE S SE E SE SE SE E E E E SE E E E  
WIND SPD 3 2 4 3 3 3 5 8 8 6 9 10 13 17 16 13 16 18 17 12 10 8  
CLOUDS FW FW FW FW SC SC B1 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV OV OV  
POP 12HR 0 20 40 60 50  
QPF 12HR 0 0.01 0.02 0.36 0.19  
RAIN S  
RAIN SHWRS S C C C L L L L C C C C L  
 
DATE 04/24 WED 04/25/18 THU 04/26/18 FRI 04/27/18 SAT 04/28/18  
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 68 51 67 48 65 45 65 41 65  
TEMP 65 64 55 52 64 62 53 49 62 60 50 46 62 59 47 42 61 59  
DEWPT 51 53 50 50 53 52 50 48 47 47 44 44 44 44 40 39 37 42  
PWIND DIR SE S W NW W W W W W  
WIND CHAR LT LT LT LT LT LT GN LT GN  
AVG CLOUDS OV B2 OV OV OV B2 B2 B2 B2 B1 B1 SC B1 B2 B2 B1 SC SC  
POP 12HR 60 40 50 40 30 20 30 30 10  
RAIN SHWRS L L C C C C C C C C S S C C C C  
TSTMS S S  
 

 
 
TNZ071-220900-  
KNOXVILLE MCGHEE TYSON AIRPORT-BLOUNT TN  
35.80N 83.98W ELEV. 979 FT  
314 PM EDT SAT APR 21 2018  
 
DATE 04/21/18 SUN 04/22/18 MON 04/23/18 TUE  
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 49 68 52 67 53  
TEMP 72 67 59 53 49 51 59 64 66 64 59 56 54 53 60 65 66 64 59 57 55 54  
DEWPT 33 35 39 41 43 42 43 44 46 48 51 49 51 49 52 53 54 51 53 52 53 52  
RH 24 30 47 64 80 71 55 48 48 56 75 77 90 86 75 65 65 63 80 83 93 93  
WIND DIR N NE S SE E E E NE E E E E E E E E SE SE E SE W NE  
WIND SPD 1 2 2 3 2 2 4 2 8 10 6 9 9 10 10 16 11 9 5 2 2 4  
CLOUDS FW FW FW SC SC B1 B2 OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV  
POP 12HR 5 60 70 60 70  
QPF 12HR 0 0.03 0.24 0.44 0.21  
RAIN S C L  
RAIN SHWRS L L L L L L L L L L L L L  
TSTMS S S  
 
DATE 04/24 WED 04/25/18 THU 04/26/18 FRI 04/27/18 SAT 04/28/18  
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 70 54 68 50 67 48 66 44 67  
TEMP 67 66 58 55 66 64 55 51 64 62 53 49 63 61 50 45 63 62  
DEWPT 55 56 52 52 53 52 50 48 48 49 47 47 46 47 44 41 41 43  
PWIND DIR S W NW N NW SW W W NW  
WIND CHAR LT LT LT LT LT LT GN LT LT  
AVG CLOUDS OV B2 B2 B2 B2 B2 B2 B2 B2 B1 SC SC B1 B1 B2 B1 FW FW  
POP 12HR 60 30 30 20 20 10 20 30 10  
RAIN SHWRS L L C C C C S S S S S S C C  
TSTMS S S  
 

 
 
TNZ036-220900-  
OAK RIDGE-ANDERSON TN  
36.00N 84.24W ELEV. 913 FT  
314 PM EDT SAT APR 21 2018  
 
DATE 04/21/18 SUN 04/22/18 MON 04/23/18 TUE  
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 49 67 52 67 53  
TEMP 72 67 57 52 49 51 59 64 66 63 59 56 54 53 60 65 66 64 59 57 55 54  
DEWPT 31 34 39 41 42 42 43 44 46 49 51 49 51 50 52 54 54 52 53 51 53 52  
RH 22 29 51 66 77 71 55 48 48 60 75 77 90 89 75 68 65 65 80 80 93 93  
WIND DIR S E NW S NE NE E NE NE E E E E E E E E E E E NE E  
WIND SPD 2 2 1 2 1 2 4 3 8 12 6 6 8 9 11 13 10 8 6 3 2 2  
CLOUDS FW FW FW SC B1 B2 B2 OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV  
POP 12HR 5 60 80 70 70  
QPF 12HR 0 0.03 0.24 0.44 0.21  
RAIN S C L  
RAIN SHWRS L L L D L L L L L L L L L  
TSTMS S C S  
 
DATE 04/24 WED 04/25/18 THU 04/26/18 FRI 04/27/18 SAT 04/28/18  
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 70 52 68 50 68 47 66 43 68  
TEMP 67 66 57 53 65 64 55 51 65 63 52 48 63 60 49 44 64 62  
DEWPT 56 57 52 52 53 52 49 48 47 49 47 47 47 47 44 41 40 43  
PWIND DIR S NW NW NW NW SW W NW NW  
WIND CHAR LT LT LT LT LT LT LT LT LT  
AVG CLOUDS OV OV OV OV B2 B2 B2 B2 B2 B1 SC SC B1 B2 B2 B1 FW FW  
POP 12HR 60 30 30 20 20 20 20 30 10  
RAIN SHWRS L L C C C C S S S S S S S S C C  
TSTMS S S  
 

 
 
TNZ099-220900-  
CHATTANOOGA AIRPORT-HAMILTON TN  
35.03N 85.22W ELEV. 688 FT  
314 PM EDT SAT APR 21 2018  
 
DATE 04/21/18 SUN 04/22/18 MON 04/23/18 TUE  
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 53 64 55 67 55  
TEMP 73 70 59 55 53 54 59 62 64 62 59 57 56 56 62 65 66 64 60 58 57 56  
DEWPT 32 35 42 44 45 47 48 49 50 51 52 52 53 52 53 55 56 53 57 54 55 54  
RH 22 27 53 66 74 77 67 62 60 67 78 83 90 86 72 70 70 67 90 86 93 93  
WIND DIR SE SE SE SE SE SE SE SE E SE SE E SE SE SE SE SE SE S S S E  
WIND SPD 8 5 4 3 5 4 8 10 10 11 14 14 14 9 10 11 9 4 3 3 4 2  
CLOUDS FW FW SC B2 B2 OV OV OV OV OV OV OV OV OV OV OV B2 OV B2 OV OV OV  
POP 12HR 20 80 90 80 60  
QPF 12HR 0.01 0.43 0.92 0.51 0.20  
RAIN C L D D D D D D  
RAIN SHWRS S S D D L L L L C C C  
TSTMS S C C L C S  
 
DATE 04/24 WED 04/25/18 THU 04/26/18 FRI 04/27/18 SAT 04/28/18  
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 69 53 68 50 69 49 68 45 70  
TEMP 67 65 57 54 66 64 55 51 66 64 54 50 65 62 51 46 66 65  
DEWPT 54 55 52 51 51 51 49 47 47 49 46 46 46 47 43 41 43 45  
PWIND DIR S NW NW NW NW W W NW NW  
WIND CHAR LT LT LT LT LT LT LT LT LT  
AVG CLOUDS OV B2 B2 B2 B2 B2 B2 B2 B2 B1 SC SC B1 B1 B1 SC FW FW  
POP 12HR 50 20 20 20 20 10 30 20 10  
RAIN SHWRS C C S S S S S S S S C C S S  
TSTMS S S  
 

 
 
NCZ060-220900-  
TUSQUITEE RAWS-FORESTRY-CHEROKEE NC  
35.07N 84.12W ELEV. 1600 FT  
314 PM EDT SAT APR 21 2018  
 
DATE 04/21/18 SUN 04/22/18 MON 04/23/18 TUE  
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 44 64 50 65 52  
TEMP 70 64 50 45 44 47 55 61 63 61 56 54 52 51 58 63 64 62 58 55 54 53  
DEWPT 35 42 44 43 42 44 47 43 43 46 49 49 50 49 50 50 53 51 52 52 52 52  
RH 27 45 80 93 93 89 74 51 48 58 77 83 93 93 75 62 67 67 80 90 93 96  
MAX/MIN RH 93 48 96 62 96  
WIND DIR SE SE SE SE SE SE SE SE SE SE SE SE SE E SE SE SE E SE SE S SE  
WIND DIR DEG 14 14 12 13 13 12 13 12 12 12 12 12 12 11 12 12 13 11 12 13 17 12  
WIND SPD 8 8 5 5 8 8 12 12 13 17 16 19 19 20 17 18 14 11 10 5 2 3  
WIND GUST 29 29 31  
CLOUDS FW FW SC SC B2 B2 OV OV OV OV OV OV OV OV B2 OV B2 B2 B2 OV OV OV  
CLOUDS (%) 16 13 35 48 70 82 91 99100100100 98 96 97 87 91 82 83 85 94 91 89  
VSBY 10 10 10 10 10 10 10 10  
POP 12HR 10 80 80 70 70  
QPF 12HR 0 0.16 0.56 0.53 0.28  
RAIN C C L D D D D D  
RAIN SHWRS L L L L L L L L C  
TSTMS S S  
HAINES 3 3  
LAL 1 1 1 1 1 1 1 2 2 1 1  
MAX MIX HGT 3700 4500  
AGL MIX HGT 2100 2900  
MAX VENT RT 42400 72100  
T WIND DIR SE SE  
T WIND SPD 20 25  
ADI 37 63  
MAX LVORI 4 4  
STABILITY B F D D D D D D C D D  
CEILING NONE 5500 3200 5500 8900 4000 4000 4000 3200 1700 4000  
STA PRES 28.15 28.18 28.12 28.12 28.00 27.93 27.92 27.90 27.82 27.82 27.81  
 
DATE 04/24 WED 04/25/18 THU 04/26/18 FRI 04/27/18 SAT 04/28/18  
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 68 51 68 47 67 44 66 43 68  
TEMP 65 64 55 52 65 63 52 48 64 61 50 45 62 60 49 44 64 62  
DEWPT 53 54 50 51 49 50 48 46 46 46 44 45 43 45 42 42 39 43  
PWIND DIR S NW NW NW NW W W NW NW  
WIND CHAR LT LT LT LT LT LT LT LT LT  
AVG CLOUDS OV B2 B2 B2 B2 B1 B1 B2 B2 B1 SC SC B1 B1 B1 B1 SC SC  
POP 12HR 50 20 30 20 20 10 20 20 10  
RAIN SHWRS C C S S C C S S S S S S S S  
TSTMS S  
 
THIS IS AN EXPERIMENTAL PRODUCT FOR PLANNING AND REVIEW PURPOSES ONLY, AND IS  
NOT TO BE SUBSTITUTED FOR AN OFFICIAL FIRE WEATHER SPOT FORECAST  
 

 
 
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