146
FNUS74 KMRX 180841
FWSMRX
SPOT FORECAST FOR APPALACHIA FIRE...USFS
NATIONAL WEATHER SERVICE MORRISTOWN TN
441 AM EDT SAT APR 18 2026
FORECAST IS BASED ON FORECAST START TIME OF 0500 EDT ON APRIL 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
..LOW AFTERNOON RELATIVE HUMIDITY RETURNS EARLY NEXT WEEK
DRY TO START TODAY. LIGHT WINDS THIS MORNING WILL BEGIN TO
INCREASE AND GUST OUT OF THE SW THIS AFTERNOON AHEAD OF AN
EXPECTED COLD FRONT TONIGHT. SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS WILL MOVE IN TONIGHT BETWEEN 8 PM AND 1 AM. TOTAL
RAINFALL COULD AMOUNT TO A QUARTER OF AN INCH. WIND DIRECTION
TURNS CLOCKWISE WITH THE FRONTAL PASSAGE EVENTUALLY TO THE NORTH
OVERNIGHT TONIGHT. NORTHERLY WINDS MAY REMAIN ELEVATED INTO THE
DAY TOMORROW WITH DRYING CONDITIONS AND MINIMUM RH DROPPING TO
NEAR 25 PERCENT.
REST OF TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....AROUND 60.
MAX HUMIDITY........72 PERCENT.
WIND (20 FT)........LIGHT WINDS.
RAINFALL AMOUNT.....0.00 INCHES.
TIME (EDT) 5AM
SKY (%).........12
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............60
RH..............69
20 FT WIND DIR..SE
20 FT WIND SPD..2
20 FT WIND GUST.6
TODAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
MAX TEMPERATURE.....AROUND 86.
MIN HUMIDITY........36 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 6 MPH WITH
GUSTS TO AROUND 16 MPH LATE IN THE MORNING.
RAINFALL AMOUNT.....0.00 INCHES.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........22 25 24 27 34 31 39 43 44 39 48 50
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............60 60 61 65 73 78 81 83 84 86 85 85
RH..............72 69 70 70 57 52 47 43 41 37 37 36
20 FT WIND DIR..SE SE SE S SW SW SW SW SW SW SW SW
20 FT WIND SPD..2 2 2 3 3 5 5 6 6 6 6 6
20 FT WIND GUST.6 7 7 8 10 11 13 14 16 16 14 14
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF RAIN
SHOWERS IN THE EVENING. SLIGHT CHANCE OF
THUNDERSTORMS THROUGH THE NIGHT. RAIN SHOWERS
OVERNIGHT.
MIN TEMPERATURE.....AROUND 45.
MAX HUMIDITY........89 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS AROUND 5 MPH EARLY IN THE
EVENING BECOMING LIGHT, THEN BECOMING NORTH 5
TO 8 MPH WITH GUSTS TO AROUND 22 MPH OVERNIGHT.
GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS EARLY IN THE EVENING.
RAINFALL AMOUNT.....0.22 INCHES.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........54 64 81 75 76 90 94 95 95 96 96 95
WEATHER COV..... SCH SCH SCH CHC LKY DEF DEF LKY CHC SCH
WEATHER TYPE.... RW RW RW RW RW RW RW RW RW RW
TSTM COV........ SCH SCH SCH SCH SCH SCH
TEMP............84 82 77 73 70 67 65 60 57 53 50 48
RH..............37 38 45 53 61 70 73 81 86 89 89 89
20 FT WIND DIR..SW SW SW W W NW NW NW N N N N
20 FT WIND SPD..5 5 3 3 4 4 5 6 6 7 8 8
20 FT WIND GUST.14 13 12 12 12 13 14 17 18 19 21 22
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING
MOSTLY SUNNY (25-35 PERCENT).
MAX TEMPERATURE.....AROUND 65.
MIN HUMIDITY........25 PERCENT.
WIND (20 FT)........NORTH WINDS 7 TO 8 MPH WITH GUSTS TO AROUND 22
MPH.
RAINFALL AMOUNT.....0.03 INCHES.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........93 89 86 83 71 59 54 49 44 32 19 7
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............47 46 45 45 48 53 56 59 61 63 64 65
RH..............89 89 86 82 68 50 42 34 30 26 25 25
20 FT WIND DIR..N N N N N N N N N N N N
20 FT WIND SPD..8 8 8 8 8 8 8 8 8 8 8 7
20 FT WIND GUST.22 22 22 22 21 19 18 18 18 18 17 17
FORECASTER...KERRIE SIMMONS
REQUESTED BY...W. SULTEMEIER
TYPE OF REQUEST...WILDFIRE
.TAG 2610549.2/MRX
.DELDT 04/18/26
.FORMATTERVERSION 2.0.0
.EMAIL CHRISTOPHER.MCTAGGART@USDA.GOV,CHARLES.DANIELS@USDA.GOV,BRIAN.MATOY@USDA.GOV,WESLEY.SULTEMEIER@USDA.GOV
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