836
FNUS74 KMRX 210729
FWSMRX
SPOT FORECAST FOR GRANDFATHER KNOB...USFS
NATIONAL WEATHER SERVICE MORRISTOWN TN
329 AM EDT SAT MAR 21 2026
FORECAST IS BASED ON IGNITION TIME OF 0600 EDT ON MARCH 22.
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
DRY WEATHER FORECAST SUNDAY UNTIL CHANCES OF PRECIPITATION
INCREASE DURING THE OVERNIGHT INTO MONDAY. A COLD FRONT WILL
COINCIDE THE PRECIPITATION, SO SOUTHWEST WINDS SUNDAY WILL FLIP
OVER TO NORTHWEST ON MONDAY. WINDS COULD GUST UP TO 20 MPH WHILE
IN THE SOUTHWEST DIRECTION. MINIMUM RH BOTH DAYS WILL RANGE FROM
THE UPPER 30S TO LOW 40S PERCENT.
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
MAX TEMPERATURE.....AROUND 79.
MIN HUMIDITY........39 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 9 MPH WITH
GUSTS TO AROUND 16 MPH IN THE LATE MORNING AND
AFTERNOON.
MIXING HEIGHT.......4300 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 9 TO 17 MPH SHIFTING TO THE WEST 20
TO 21 MPH LATE IN THE AFTERNOON.
RAINFALL AMOUNT.....0.00 INCHES.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........52 51 59 45 51 56 48 41 33 31 30 28
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............58 58 57 60 63 67 70 73 76 77 78 78
RH..............90 90 96 87 81 70 63 55 48 45 40 39
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..3 3 3 4 5 5 6 6 7 8 9 9
20 FT WIND GUST.8 8 8 10 10 11 12 13 14 14 16 16
MIX HGT (KFT)...1.1 1.1 1.2 1.5 1.9 2.4 2.9 3.4 3.8 4.1 4.3 4.1
TRANSP WIND DIR.SW SW W SW SW W W W W W W W
TRANSP WIND SPD.12 10 10 9 10 13 14 16 17 20 21 21
SUNDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF
SHOWERS OVERNIGHT.
MIN TEMPERATURE.....AROUND 54.
MAX HUMIDITY........96 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 8 MPH. GUSTS UP TO 20 MPH
OVERNIGHT.
MIXING HEIGHT.......1500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 14 TO 21 MPH.
RAINFALL AMOUNT.....0.04 INCHES.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........28 29 29 29 29 29 40 50 61 70 79 88
WEATHER COV..... CHC CHC CHC CHC
WEATHER TYPE.... RW RW RW RW
TSTM COV........
TEMP............77 75 73 71 70 68 67 67 66 65 64 62
RH..............39 43 48 51 55 59 61 63 65 68 73 78
20 FT WIND DIR..SW SW SW SW SW SW SW W W W W W
20 FT WIND SPD..8 6 5 5 5 6 6 6 7 8 8 8
20 FT WIND GUST.14 14 12 12 13 14 14 14 16 16 16 16
MIX HGT (KFT)...3.4 2.4 1.7 1.5 1.6 1.8 1.9 1.9 2.0 2.1 2.3 2.4
TRANSP WIND DIR.SW SW SW SW SW SW SW W W W W W
TRANSP WIND SPD.18 16 14 15 17 20 21 21 21 21 20 20
MONDAY
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) THEN BECOMING
SUNNY (20-30 PERCENT). CHANCE OF RAIN SHOWERS
EARLY IN THE MORNING, THEN SLIGHT CHANCE OF
RAIN SHOWERS EARLY IN THE MORNING.
MAX TEMPERATURE.....AROUND 60.
MIN HUMIDITY........42 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 6 TO 8 MPH DECREASING TO AROUND
6 MPH IN THE LATE MORNING AND AFTERNOON.
MIXING HEIGHT.......4500 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 21 MPH SHIFTING TO THE NORTH
15 TO 21 MPH EARLY IN THE MORNING.
RAINFALL AMOUNT.....0.04 INCHES.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........88 88 88 81 75 68 54 39 25 20 16 11
WEATHER COV.....CHC CHC SCH SCH SCH SCH SCH SCH
WEATHER TYPE....RW RW RW RW RW RW RW RW
TSTM COV........
TEMP............60 57 55 55 55 56 57 58 58 59 59 58
RH..............84 93 96 93 90 80 69 60 53 47 44 42
20 FT WIND DIR..W NW NW NW NW NW NW NW NW NW N N
20 FT WIND SPD..8 7 6 6 6 6 6 6 6 6 6 6
20 FT WIND GUST.14 14 14 13 13 12 12 12 12 12 12 12
MIX HGT (KFT)...2.4 2.3 2.3 2.4 2.6 2.8 3.2 3.6 3.9 4.3 4.5 4.4
TRANSP WIND DIR.W NW N N N N N N N N N N
TRANSP WIND SPD.21 21 21 20 17 15 15 15 15 15 15 15
FORECASTER...KERRIE SIMMONS
REQUESTED BY...MAXWELL WHITE
TYPE OF REQUEST...PRESCRIBED
.TAG 2606875.0/MRX
.DELDT 03/21/26
.FORMATTERVERSION 2.0.0
.EMAIL MAXWELL.WHITE@USDA.GOV
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