275
FNUS74 KMRX 181213
FWSMRX
SPOT FORECAST FOR GRANTRX...TENNESSEE DIVISION OF FORESTRY
NATIONAL WEATHER SERVICE MORRISTOWN TN
813 AM EDT THU SEP 18 2025
FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON SEPTEMBER 18.
IF CONDITIONS BECOME UNREPRESENTATIVE,CONTACT THE NATIONAL WEATHER
SERVICE...AT 1-800-697-0075. IF POSSIBLE, PLEASE PROVIDE FEEDBACK
FOR EVERY SPOT FORECAST REQUEST.
DISCUSSION
DUE TO THE PROXIMITY OF THE BURN TO THE TENNESSEE RIVER, SOME
EARLY MORNING FOG MAY BE PRESENT. IF THIS IS THE CASE, EXPECT FOG
TO BURN OFF BETWEEN 9 AM AND 10 AM. A DEEP LOW-LEVEL INVERSION
CURRENTLY EXISTS BUT WILL BECOME MORE SHALLOW OVER THE NEXT FEW
HOURS. EXPECT THE MORNING INVERSION TO MIX OUT BETWEEN 10 AM AND
11 AM.
OTHERWISE, DRY AND WARM TODAY WITH LIGHT WINDS. THE WINDS WILL BE
SO LIGHT TODAY THAT DIRECTION WILL BE VERY DIFFICULT TO FORECAST.
THE GENERAL WINDS ARE OUT OF THE NORTHEAST BUT LIGHT ENOUGH THAT
LOCAL UPVALLEY WINDS MAY TAKE OVER. DO NOT BE SUPRISED TO SEE
LIGHT NORTHEAST WINDS THIS MORNING SWITCH OVER TO SOUTHWESTERLY BY
THIS AFTERNOON.
SIMILAR CONDITIONS ARE EXPECTED ON FRIDAY.
REST OF TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 86.
MIN HUMIDITY........44 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......5400 FT AGL.
TRANSPORT WINDS.....NORTHEAST 2 TO 5 MPH.
RAINFALL AMOUNT.....0.00 INCHES.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM
SKY (%).........11 4 5 4 6 5 3 5 5 7
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............70 74 78 81 83 84 84 84 82 79
RH..............81 74 64 58 51 48 44 44 47 56
20 FT WIND DIR..S S SW SW SW SW SW SW SW W
20 FT WIND SPD..2 2 2 2 2 2 2 2 2 1
20 FT WIND GUST.5 6 6 7 7 7 7 7 6 6
MIX HGT (KFT)...1.0 1.6 2.5 4.1 5.2 5.3 5.4 4.9 2.8 0.4
TRANSP WIND DIR.NE E E NE NE NE NE NE N N
TRANSP WIND SPD.5 5 5 3 3 2 3 3 3 3
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....AROUND 60.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 3 MPH.
RAINFALL AMOUNT.....0.00 INCHES.
TIME (EDT) 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM
SKY (%).........10 5 7 5 4 3 5 12 12 12 18 17
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............73 70 68 66 66 64 64 63 62 62 61 60
RH..............71 78 81 87 84 90 90 93 93 93 93 96
20 FT WIND DIR..W SW S S S S SW SW S S S S
20 FT WIND SPD..1 1 1 1 1 1 1 1 1 1 1 1
20 FT WIND GUST.6 3 3 3 3 3 3 3 3 3 3 3
MIX HGT (KFT)...0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3
TRANSP WIND DIR.NE NE NE NE NE NE NE NE NE NE NE NE
TRANSP WIND SPD.3 3 3 3 3 3 3 3 3 3 3 3
FRIDAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....AROUND 88.
MIN HUMIDITY........43 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......6200 FT AGL.
TRANSPORT WINDS.....NORTHEAST 3 TO 5 MPH.
RAINFALL AMOUNT.....0.00 INCHES.
TIME (EDT) 4AM 5AM 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM
SKY (%).........18 16 12 8 8 9 9 13 18 22 23 24
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............60 65 71 76 80 83 85 87 87 86 83 79
RH..............100 90 81 74 67 57 51 45 43 43 48 56
20 FT WIND DIR..S S S S SW SW NE NE NE NE NE NE
20 FT WIND SPD..1 1 2 2 2 2 1 1 2 2 2 1
20 FT WIND GUST.3 3 3 5 5 6 6 6 7 7 7 7
MIX HGT (KFT)...0.3 0.5 0.9 1.6 3.0 4.5 5.7 6.2 6.0 5.3 3.7 1.8
TRANSP WIND DIR.NE NE E E NE N N N NE NE NE NE
TRANSP WIND SPD.3 3 3 3 3 3 3 3 3 3 3 5
FORECASTER...SAM ROBERTS
REQUESTED BY...TRAVIS CHADWICK
TYPE OF REQUEST...PRESCRIBED
.TAG 2522137.0/MRX
.DELDT 09/18/25
.FORMATTERVERSION 2.0.0
.EMAIL TRAVIS.CHADWICK@TN.GOV
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