702  
FOUS54 KMRX 191720  
PFMMRX  
 
POINT FORECAST MATRICES  
NATIONAL WEATHER SERVICE MORRISTOWN TN  
1220 PM EST TUE JAN 19 2021  
 
TNZ017-192100-  
TRI CITIES AIRPORT-SULLIVAN TN  
36.50N 82.41W ELEV. 1536 FT  
1220 PM EST TUE JAN 19 2021  
 
DATE TUE 01/19/21 WED 01/20/21 THU 01/21/21  
EST 3HRLY 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19  
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 46 30 40 27 45  
TEMP 41 45 40 36 34 33 32 34 37 40 32 28 28 29 31 36 41 44 41  
DEWPT 29 31 30 31 31 30 28 25 23 21 21 23 23 24 26 32 37 38 39  
RH 62 58 67 82 89 89 85 69 56 46 63 81 81 81 81 85 85 79 92  
WIND DIR SW SW SW SW W W W W W W SW SW SW S SW SW SW SW SW  
WIND SPD 8 8 6 8 8 10 10 10 10 8 6 5 5 5 6 8 10 8 5  
CLOUDS OV B2 B1 B2 B2 B2 B2 B1 FW CL CL FW SC B1 B2 OV B2 B1 B1  
POP 12HR 20 10 0 20 40  
QPF 12HR 0 0 0 0 0.02  
FLURRIES S S  
RAIN SHWRS S C S S S  
SNOWSHWRS S S C C  
SPRINKLES S  
 
DATE FRI 01/22/21 SAT 01/23/21 SUN 01/24/21 MON 01/25/21  
EST 6HRLY 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX 33 45 24 42 25 48 35 49  
TEMP 38 35 42 36 29 25 38 33 27 27 44 40 36 38 46 45  
DEWPT 38 34 33 29 25 21 23 23 21 22 27 31 33 36 43 43  
PWIND DIR SW W NW N NE S SE SW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS B2 B2 B1 SC SC SC FW FW FW SC SC B1 B2 OV OV B2  
POP 12HR 20 10 5 0 5 10 50 60  
RAIN SHWRS S S C L L  
SNOWSHWRS C  
 

 
 
TNZ071-192100-  
KNOXVILLE MCGHEE TYSON AIRPORT-BLOUNT TN  
35.80N 83.98W ELEV. 979 FT  
1220 PM EST TUE JAN 19 2021  
 
DATE TUE 01/19/21 WED 01/20/21 THU 01/21/21  
EST 3HRLY 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19  
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 48 33 45 33 49  
TEMP 44 47 42 39 37 36 35 37 42 44 37 35 34 36 37 40 45 48 46  
DEWPT 30 32 33 35 35 33 31 28 26 25 25 26 25 28 31 38 42 43 44  
RH 57 56 70 85 92 89 85 70 53 47 61 69 69 72 79 92 89 83 93  
WIND DIR SW SW SW SW SW W W NW W W S SW S SW SW SW SW SW SW  
WIND SPD 9 9 8 9 8 6 5 3 5 4 4 5 6 9 10 12 9 8 5  
CLOUDS B2 OV B2 B2 B2 B2 SC SC FW FW SC SC B1 B2 OV OV OV B2 B2  
POP 12HR 5 10 0 40 60  
QPF 12HR 0 0 0 0.02 0.08  
RAIN SHWRS C L L C C S  
SNOWSHWRS C C  
 
DATE FRI 01/22/21 SAT 01/23/21 SUN 01/24/21 MON 01/25/21  
EST 6HRLY 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX 37 48 28 46 29 50 40 53  
TEMP 43 38 45 41 33 28 43 38 32 30 46 44 43 42 50 51  
DEWPT 42 37 37 34 29 24 28 27 25 25 33 37 39 41 48 48  
PWIND DIR SW N NE NE NE W S SW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS B2 B2 B2 B1 SC SC FW FW FW SC SC B1 B2 OV OV OV  
POP 12HR 20 20 5 5 5 20 60 60  
RAIN SHWRS S S S S C L L L  
 

 
 
TNZ036-192100-  
OAK RIDGE-ANDERSON TN  
36.00N 84.24W ELEV. 913 FT  
1220 PM EST TUE JAN 19 2021  
 
DATE TUE 01/19/21 WED 01/20/21 THU 01/21/21  
EST 3HRLY 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19  
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 49 32 46 32 49  
TEMP 44 48 43 39 37 36 33 36 42 44 37 33 33 34 36 40 45 48 45  
DEWPT 30 33 33 34 34 31 29 28 25 24 24 25 25 28 32 38 42 43 43  
RH 57 56 67 82 89 82 85 72 50 45 59 72 72 78 85 92 89 83 93  
WIND DIR SW SW SW SW W W NW NW W W S SW SW SW SW SW SW SW S  
WIND SPD 8 6 5 5 5 8 6 3 5 4 3 4 4 8 8 9 6 4 3  
CLOUDS B2 B2 B2 B2 B2 B1 SC B1 FW FW SC SC B1 B2 B2 OV OV B1 B2  
POP 12HR 5 5 0 40 50  
QPF 12HR 0 0 0 0.02 0.05  
RAIN SHWRS C C C C S  
SNOWSHWRS C C  
 
DATE FRI 01/22/21 SAT 01/23/21 SUN 01/24/21 MON 01/25/21  
EST 6HRLY 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX 35 48 27 46 28 49 39 52  
TEMP 40 37 45 39 32 28 42 37 31 29 45 43 41 42 49 49  
DEWPT 39 35 35 31 27 23 26 25 23 25 33 37 38 41 47 47  
PWIND DIR SW NW N NE NE S SW SW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS B2 B2 B2 B1 SC FW FW FW FW SC SC B1 B2 OV OV OV  
POP 12HR 20 20 5 5 10 20 60 60  
RAIN SHWRS S S S S C L L L  
 

 
 
TNZ099-192100-  
CHATTANOOGA AIRPORT-HAMILTON TN  
35.03N 85.22W ELEV. 688 FT  
1220 PM EST TUE JAN 19 2021  
 
DATE TUE 01/19/21 WED 01/20/21 THU 01/21/21  
EST 3HRLY 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19  
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 50 35 50 37 52  
TEMP 46 49 44 41 39 38 37 40 47 49 42 39 38 39 40 44 49 52 50  
DEWPT 30 34 37 39 38 36 32 30 27 25 28 29 31 33 37 42 45 47 47  
RH 53 56 76 92 96 92 82 67 45 39 57 67 76 79 89 93 86 83 89  
WIND DIR SW SW SW SW W NW NW N NW W SW SW S SW SW SW S S S  
WIND SPD 4 5 5 4 5 6 6 5 5 4 2 3 3 4 6 6 4 4 3  
CLOUDS B1 B2 OV B2 B2 B1 FW CL FW SC B1 B2 B2 OV B2 B2 OV B2 B2  
POP 12HR 20 20 0 50 60  
QPF 12HR 0.02 0 0 0.04 0.09  
RAIN SHWRS S C C L L L L C  
SPRINKLES C  
 
DATE FRI 01/22/21 SAT 01/23/21 SUN 01/24/21 MON 01/25/21  
EST 6HRLY 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX 41 51 32 50 33 52 43 58  
TEMP 45 42 48 45 37 33 46 43 36 34 49 48 46 46 54 55  
DEWPT 44 42 40 37 31 26 29 30 28 30 35 39 41 44 50 51  
PWIND DIR S N N NE NE SE S S  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS B2 B2 B2 B1 B1 SC FW FW SC SC SC B1 B2 OV OV OV  
POP 12HR 30 30 5 5 5 20 60 70  
RAIN SHWRS C S C S S C L L L  
 

 
 
NCZ060-192100-  
TUSQUITEE RAWS-FORESTRY-CHEROKEE NC  
35.07N 84.12W ELEV. 1600 FT  
1220 PM EST TUE JAN 19 2021  
 
DATE TUE 01/19/21 WED 01/20/21 THU 01/21/21  
EST 3HRLY 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19  
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 49 32 45 30 48  
TEMP 43 48 43 39 37 36 33 36 42 44 36 32 31 33 34 38 44 47 45  
DEWPT 28 31 32 36 37 35 31 29 25 23 23 25 24 27 31 37 42 42 43  
RH 55 51 65 89100 96 92 75 50 43 59 75 75 78 89 96 93 83 93  
MIN/MAX RH 51 100 43 92 78  
WIND DIR SW SW SW SW W NW NW NW NW NW W W NE SW SW SW SW SW SW  
WIND DIR DEG 23 23 20 23 26 29 31 32 30 29 28 24 4 23 23 20 23 23 23  
WIND SPD 5 6 5 3 5 9 10 9 9 6 2 2 1 1 3 3 3 2 1  
CLOUDS B2 B2 OV B2 OV B2 SC SC FW SC SC B1 B2 B2 OV OV OV B2 B2  
CLOUDS (%) 85 86 92 84 91 87 28 27 9 28 48 53 72 77 88 94 89 84 83  
VSBY 10 10 10 10 10 10 10  
POP 12HR 20 20 0 40 70  
QPF 12HR 0.03 0 0 0.03 0.19  
RAIN SHWRS S S C L L L L S  
SNOWSHWRS C  
SPRINKLES C  
HAINES 3 4 2  
LAL 1 1 1 1 1 1 1 1 1 1  
MAX MIX HGT 5100 4600 0  
AGL MIX HGT 3400 2900 500  
MAX VENT RT 58700 49900 0  
T WIND DIR W NW SW  
T WIND SPD 17 17 3  
ADI 51 43 0  
MAX LVORI 4 4 9  
STABILITY C C D F C B F D B B  
CEILING 6300 4000 2400 3200 NONE 20800 7200 1700 300 300  
STA PRES 28.11 28.10 28.09 28.11 28.07 28.03 27.97 27.89 27.80 27.74  
 
DATE FRI 01/22/21 SAT 01/23/21 SUN 01/24/21 MON 01/25/21  
EST 6HRLY 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX 36 49 27 50 29 52 39 54  
TEMP 41 38 47 41 33 28 48 39 32 31 49 44 41 41 51 50  
DEWPT 41 38 38 34 30 24 29 29 28 27 34 37 37 40 48 47  
PWIND DIR NW NW N N E S SE S  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS B2 B2 B2 B1 SC SC FW FW FW SC SC B1 B2 OV OV B2  
POP 12HR 20 30 5 5 10 20 50 60  
RAIN SHWRS S S C S S C C L L  
 
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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