151  
FOUS54 KMRX 210740  
PFMMRX  
 
POINT FORECAST MATRICES  
NATIONAL WEATHER SERVICE MORRISTOWN TN  
340 AM EDT SAT APR 21 2018  
 
TNZ017-212115-  
TRI CITIES AIRPORT-SULLIVAN TN  
36.50N 82.41W ELEV. 1536 FT  
340 AM EDT SAT APR 21 2018  
 
DATE SAT 04/21/18 SUN 04/22/18 MON 04/23/18  
EDT 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20  
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00  
 
MAX/MIN 70 42 69 45 62  
TEMP 37 34 53 64 69 63 55 49 46 43 57 65 68 65 57 52 49 46 54 59 61 58  
DEWPT 27 29 31 35 37 38 38 37 38 38 39 40 40 40 41 40 41 40 43 45 46 45  
RH 67 82 43 34 31 39 53 63 73 82 51 40 36 40 55 63 74 79 66 60 58 62  
WIND DIR E E SE S W N E SE SE SE SE SE SE SE SE E E E E E E E  
WIND SPD 3 3 3 3 2 2 3 4 4 3 4 5 6 8 6 6 8 5 10 12 14 14  
CLOUDS CL CL CL CL FW FW SC SC SC SC B1 B2 B2 OV OV OV OV OV OV OV OV OV  
POP 12HR 0 0 5 30 70  
QPF 12HR 0 0 0 0.02 0.29  
RAIN SHWRS S S C C C C L L C  
FROST Y Y  
 
DATE TUE 04/24/18 WED 04/25/18 THU 04/26/18 FRI 04/27/18  
EDT 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX 47 68 50 68 49 65 45 66  
TEMP 51 48 65 64 55 51 65 64 54 50 63 60 50 46 62 59  
DEWPT 45 46 47 51 50 49 51 51 49 47 48 47 46 44 46 45  
PWIND DIR E E SE SW W W SW SW  
WIND CHAR GN GN LT LT LT GN GN GN  
AVG CLOUDS OV B2 OV B2 OV OV OV B2 B2 B2 B2 B1 B1 B1 B2 B2  
POP 12HR 50 50 50 50 50 50 20 50  
RAIN SHWRS C C C C C C C C C C C C S S C C  
 

 
 
TNZ071-212115-  
KNOXVILLE MCGHEE TYSON AIRPORT-BLOUNT TN  
35.80N 83.98W ELEV. 979 FT  
340 AM EDT SAT APR 21 2018  
 
DATE SAT 04/21/18 SUN 04/22/18 MON 04/23/18  
EDT 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20  
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00  
 
MAX/MIN 72 47 67 51 64  
TEMP 44 41 57 67 71 66 58 54 50 48 58 64 66 64 58 55 53 51 58 62 64 61  
DEWPT 34 34 36 39 41 43 42 42 41 42 44 47 47 47 48 47 48 47 49 49 50 49  
RH 68 76 45 36 34 43 55 64 71 80 59 54 50 54 69 74 83 86 72 62 60 65  
WIND DIR NE E NE N NE NE E SE E E E E E E E NE NE NE E E E NE  
WIND SPD 3 2 2 2 3 3 3 3 2 1 2 4 5 8 9 11 9 11 12 12 10 9  
CLOUDS CL CL CL FW FW FW SC SC B1 B2 B2 OV OV OV OV OV OV OV OV OV B2 OV  
POP 12HR 0 0 30 70 70  
QPF 12HR 0 0 0.10 0.23 0.42  
RAIN SHWRS S S C C C C L L L L L L L  
TSTMS C C C C  
 
DATE TUE 04/24/18 WED 04/25/18 THU 04/26/18 FRI 04/27/18  
EDT 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX 51 68 54 68 50 67 48 67  
TEMP 55 52 66 65 58 55 66 64 55 51 64 62 53 49 64 61  
DEWPT 49 50 52 54 53 52 53 52 49 48 48 49 47 46 47 46  
PWIND DIR NE NE NW W W W SW SW  
WIND CHAR GN LT LT LT LT GN GN GN  
AVG CLOUDS OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B1 SC B1 B1 B1  
POP 12HR 60 60 50 40 50 40 20 50  
RAIN SHWRS L L L L C C C C C C C C S S C C  
 

 
 
TNZ036-212115-  
OAK RIDGE-ANDERSON TN  
36.00N 84.24W ELEV. 913 FT  
340 AM EDT SAT APR 21 2018  
 
DATE SAT 04/21/18 SUN 04/22/18 MON 04/23/18  
EDT 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20  
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00  
 
MAX/MIN 72 47 66 51 63  
TEMP 45 41 57 67 71 66 58 54 50 48 57 63 65 63 58 55 53 52 58 61 63 60  
DEWPT 30 31 34 38 40 41 43 44 43 43 44 46 47 48 48 47 49 49 49 50 50 50  
RH 55 67 42 34 32 40 57 69 77 83 62 54 52 58 69 74 86 89 72 67 62 69  
WIND DIR NE NE E S E E E E NE NE E E E E E E E E E E E E  
WIND SPD 3 3 1 2 2 2 1 1 1 2 2 4 5 8 5 4 6 8 6 5 5 4  
CLOUDS CL CL FW FW FW SC SC SC B1 B2 B2 OV OV OV OV OV OV OV OV OV OV OV  
POP 12HR 0 5 30 70 70  
QPF 12HR 0 0 0.15 0.19 0.56  
RAIN SHWRS S S C C C C L L L L L L L  
 
DATE TUE 04/24/18 WED 04/25/18 THU 04/26/18 FRI 04/27/18  
EDT 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX 52 69 53 68 49 67 48 67  
TEMP 55 53 66 65 57 54 66 64 54 50 64 62 53 49 64 61  
DEWPT 49 50 53 54 52 52 53 51 49 47 48 48 47 47 46 42  
PWIND DIR NE NE NW W W W SW W  
WIND CHAR LT LT LT LT LT LT LT GN  
AVG CLOUDS OV OV OV OV OV B2 B2 B2 B2 B2 B2 B1 SC B1 B1 B1  
POP 12HR 60 60 40 40 50 40 20 50  
RAIN SHWRS L L L L C C C C C C C C S S C C  
 

 
 
TNZ099-212115-  
CHATTANOOGA AIRPORT-HAMILTON TN  
35.03N 85.22W ELEV. 688 FT  
340 AM EDT SAT APR 21 2018  
 
DATE SAT 04/21/18 SUN 04/22/18 MON 04/23/18  
EDT 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20  
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00  
 
MAX/MIN 73 50 63 53 66  
TEMP 45 43 59 68 72 67 60 56 53 51 57 61 63 61 58 56 55 54 60 64 66 63  
DEWPT 39 39 38 37 39 41 42 44 44 44 47 50 50 49 50 50 50 50 51 52 53 53  
RH 79 86 45 32 30 39 51 64 71 77 69 67 62 65 75 80 83 86 72 65 63 70  
WIND DIR NE NE SE SE SE SE SE SE SE SE E E E E NE E E E E E E E  
WIND SPD 2 2 6 9 6 4 3 4 4 4 6 9 10 11 11 9 13 10 12 11 10 9  
CLOUDS CL CL CL FW FW FW SC B2 B2 OV OV OV OV OV OV OV OV OV OV OV OV OV  
POP 12HR 0 20 80 90 70  
QPF 12HR 0 0.01 0.52 0.61 0.60  
RAIN SHWRS S S L L D D D D D D L L L L L  
TSTMS C C C C  
 
DATE TUE 04/24/18 WED 04/25/18 THU 04/26/18 FRI 04/27/18  
EDT 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX 54 69 54 69 50 68 49 69  
TEMP 57 55 67 65 58 54 67 64 55 51 65 63 54 50 66 63  
DEWPT 52 52 54 55 52 51 51 51 49 46 47 48 47 47 46 45  
PWIND DIR E N NW NW NW W W W  
WIND CHAR GN LT LT LT LT GN LT GN  
AVG CLOUDS OV OV OV OV B2 B2 B2 B2 B2 B2 B1 SC SC B1 B1 B1  
POP 12HR 70 50 40 30 20 30 20 50  
RAIN SHWRS L L C C C C C C S S C C S S C C  
 

 
 
NCZ060-212115-  
TUSQUITEE RAWS-FORESTRY-CHEROKEE NC  
35.07N 84.12W ELEV. 1600 FT  
340 AM EDT SAT APR 21 2018  
 
DATE SAT 04/21/18 SUN 04/22/18 MON 04/23/18  
EDT 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20  
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00  
 
MAX/MIN 70 45 62 51 64  
TEMP 39 40 56 65 69 64 56 52 48 46 54 59 61 60 56 54 52 51 58 62 64 61  
DEWPT 35 35 36 36 38 40 39 39 40 42 43 44 45 45 49 48 49 49 49 49 50 50  
RH 85 82 47 34 32 41 53 61 74 86 66 57 56 58 77 80 89 93 72 62 60 67  
MIN/MAX RH 32 86 53 93 60  
WIND DIR E SE SE SE SE SE SE SE SE SE SE SE E E E E E SE SE SE SE SE  
WIND DIR DEG 11 12 13 14 15 15 14 12 12 12 12 12 11 11 9 10 10 12 12 12 12 12  
WIND SPD 3 4 6 6 5 5 5 6 8 8 9 9 11 12 10 13 13 13 13 10 11 10  
CLOUDS CL CL CL CL FW FW SC B1 B2 B2 OV OV OV OV OV OV OV OV OV OV B2 OV  
CLOUDS (%) 0 0 0 5 14 18 40 58 70 82 91 99 99 99 99100100100 91 92 75 91  
VSBY 10 10 10 10 10 10 10 10  
POP 12HR 0 5 70 90 80  
QPF 12HR 0 0 0.11 0.52 0.30  
RAIN SHWRS C C L L D D D D D D L L L  
TSTMS C C C C  
HAINES 5 2  
LAL 1 1 1 1 1 1 1 1 3 3 3  
MAX MIX HGT 5400 3800  
AGL MIX HGT 3700 2200  
MAX VENT RT 38200 44600  
T WIND DIR SE SE  
T WIND SPD 10 20  
ADI 33 39  
MAX LVORI 3 4  
STABILITY G B B E D D D D D C C  
CEILING NONE NONE NONE 20800 18200 6300 5500 4000 3200 4000 4700  
STA PRES 28.21 28.20 28.16 28.17 28.14 28.13 28.06 27.96 27.97 27.97 27.90  
 
DATE TUE 04/24/18 WED 04/25/18 THU 04/26/18 FRI 04/27/18  
EDT 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX 51 68 52 67 46 67 44 67  
TEMP 54 52 65 64 56 53 65 62 52 47 63 61 50 45 63 60  
DEWPT 50 50 52 54 52 51 50 50 48 46 46 46 46 45 44 42  
PWIND DIR SE SE N NW NW NW W W  
WIND CHAR GN LT LT LT LT LT LT GN  
AVG CLOUDS OV B2 B2 OV B2 B2 B2 B2 B2 B2 B2 B1 SC B1 B1 B1  
POP 12HR 60 70 40 30 40 40 10 50  
RAIN SHWRS L L L L C C C C C C C C C C  
 
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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