477
FNUS74 KMRX 211901
FWSMRX
SPOT FORECAST FOR GRANDFATHER KNOB...USFS
NATIONAL WEATHER SERVICE MORRISTOWN TN
301 PM 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
..WIDELY SCATTERED TO SCATTERED STORMS THIS EVENING
SPRING-LIKE TEMPERATURES WILL CONTINUE THROUGH SUNDAY ALONG WITH
SMOKY CONDITIONS. WIDELY SCATTERED SHOWERS AND THUNDERSTORMS THIS
EVENING WITH DRY AND UNSEASONABLY WARM CONDITIONS SUNDAY.
A WEAK FRONTAL BOUNDARY WILL MOVE ACROSS THE REGION SUNDAY NIGHT
INTO EARLY MONDAY MORNING PRODUCING A CHANCE OF RAIN SHOWERS MAINLY
NORTH OF INTERSTATE 40. SEASONALLY COOLER AND DRY CONDITIONS FOR
EARLY NEXT WEEK.
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........54 55 55 42 44 43 41 30 20 20 16 36
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
SUNDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT) THEN BECOMING
MOSTLY CLOUDY (65-75 PERCENT). CHANCE OF
SHOWERS OVERNIGHT.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........28 33 23 14 19 24 29 35 40 56 71 87
WEATHER COV..... CHC CHC CHC CHC
WEATHER TYPE.... RW RW RW RW
TSTM COV........
MONDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING
SUNNY (20-30 PERCENT). CHANCE OF RAIN SHOWERS
EARLY IN THE MORNING.
MAX TEMPERATURE.....AROUND 61.
MIN HUMIDITY........40 PERCENT.
WIND (20 FT)........WEST WINDS 6 TO 7 MPH WITH GUSTS TO AROUND 17
MPH SHIFTING TO THE NORTHWEST AROUND 6 MPH IN
THE LATE MORNING AND AFTERNOON.
MIXING HEIGHT.......4400 FT AGL.
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH SHIFTING TO THE NORTH 12
TO 14 MPH IN THE LATE MORNING AND AFTERNOON.
RAINFALL AMOUNT.....0.03 INCHES.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........88 89 90 85 80 75 59 43 27 20 14 7
WEATHER COV.....CHC CHC
WEATHER TYPE....RW RW
TSTM COV........
TEMP............60 58 57 56 57 57 57 58 59 59 60 59
RH..............87 93 93 93 86 80 75 64 55 49 44 42
20 FT WIND DIR..W W W NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..7 7 6 6 6 6 6 6 6 6 6 6
20 FT WIND GUST.17 14 14 13 13 13 13 12 12 12 12 12
MIX HGT (KFT)...2.4 2.2 2.0 2.1 2.3 2.6 3.0 3.4 3.8 4.2 4.4 4.3
TRANSP WIND DIR.W NW NW N N N N N N N N N
TRANSP WIND SPD.20 17 15 14 13 12 12 13 13 13 13 13
FORECASTER...DAVID HOTZ
REQUESTED BY...MAXWELL WHITE
TYPE OF REQUEST...PRESCRIBED
.TAG 2606875.1/MRX
.DELDT 03/21/26
.FORMATTERVERSION 2.0.0
.EMAIL MAXWELL.WHITE@USDA.GOV
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