287
FNUS54 KMEG 182031
FWFMEG
FIRE WEATHER PLANNING FORECAST FOR THE MIDSOUTH
NATIONAL WEATHER SERVICE MEMPHIS TN
330 PM CDT FRI SEP 18 2026
DISCUSSION
STRONG RIDGING WILL CONTINUE TO PRODUCE AFTERNOON HIGHS NEAR OR
ABOVE 100 F THROUGH THIS WEEKEND ACROSS THE REGION, RESULTING IN
MINIMUM RELATIVE HUMIDITY VALUES IN THE 30S FOR THE MAJORITY OF
THE REGION. THERE IS A 40% - 50% CHANCE OF MINIMUM RELATIVE
HUMIDITY VALUES FALLING BELOW 30% BOTH TODAY AND TOMORROW. FUELS
WILL ALSO CONTINUE TO DRY OUT WITH 10 HOUR FUELS MODELED TO FALL
TO AROUND 10% THROUGH THE AFTERNOON HOURS EACH DAY THROUGH
SUNDAY.
FORTUNATELY, 20 FOOT WINDS WILL BE LIGHT, GENERALLY RESIDING
BELOW
10 KNOTS WITH TALL, 5000 FOOT OR HIGHER MIXING HEIGHTS. FOG
CHANCES REMAIN LOW (< 10%), BUT PATCHY FOG CANNOT BE RULED OUT. A
COLD FRONT IS EXPECTED TO REACH THE REGION EARLY NEXT WEEK,
COOLING AFTERNOON HIGHS, BRINGING MINIMUM RELATIVE HUMIDITY
VALUES
ABOVE 40%, AND SHIFTING WINDS TO A NORTHERLY DIRECTION.
ARZ009-018-026>028-MOZ113-115-190900-
CLAY-CRAIGHEAD-DUNKLIN-GREENE-MISSISSIPPI-PEMISCOT-POINSETT-
330 PM CDT FRI SEP 18 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR
CHANCE OF THUNDER (%) 0 0 0 0
PRECIP CHANCE (%)
PRECIP TYPE NONE NONE NONE NONE
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION (HRS)
PRECIP BEGIN
PRECIP END
TEMP (24H TREND) 71 (-1) 99 (0) 71 99
RH % (24H TREND) 82 (-6) 30 (-5) 78 31
AM WIND 20FT (MPH) LGT/VAR LGT/VAR
PM WIND 20FT (MPH) LGT/VAR SW 4 LGT/VAR W 6
MIXING HGT(M-AGL) 2500 3000
MIXING HGT(FT-AGL) 8100 9800
MIXING HGT(M-MSL) 2500 3100
MIXING HGT(FT-MSL) 8300 10100
TRANSPORT WND (M/S) SW 4 SW 5
TRANSPORT WND (MPH) SW 9 SW 12
VENT INDEX (M2/S) 10000 15500
CATEGORY DAY 4 4
500M MIX HGT TEMP (F) 92 92
500M TSPT WIND (M/S) W 4 W 4
500M TSPT WIND (MPH) W 9 W 9
DISPERSION INDEX 6 30 7 36
STABILITY CLASS F B F B
STAGNATION INDEX 3 3 3 3
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. NORTHWEST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S. MINIMUM RH
45 PERCENT. NORTH WINDS 5 TO 10 MPH.
MONDAY NIGHT
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS IN THE
UPPER 60S. NORTH WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. MINIMUM RH
55 PERCENT. NORTH WINDS 10 TO 15 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. NORTH
WINDS 10 TO 15 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. MINIMUM RH
51 PERCENT. NORTH WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTH WINDS 5 TO
10 MPH.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. MINIMUM RH 48 PERCENT.
NORTHEAST WINDS 5 TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHEAST
WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. MINIMUM RH
49 PERCENT. NORTHEAST WINDS 5 TO 10 MPH.
ARZ035-036-048-049-058-190900-
CRITTENDEN-CROSS-LEE AR-PHILLIPS-ST. FRANCIS-
330 PM CDT FRI SEP 18 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR
CHANCE OF THUNDER (%) 0 0 0 0
PRECIP CHANCE (%)
PRECIP TYPE NONE NONE NONE NONE
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION (HRS)
PRECIP BEGIN
PRECIP END
TEMP (24H TREND) 72 (0) 102 (+2) 73 101
RH % (24H TREND) 77 (-9) 29 (-4) 76 30
AM WIND 20FT (MPH) LGT/VAR LGT/VAR
PM WIND 20FT (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
MIXING HGT(M-AGL) 2600 3100
MIXING HGT(FT-AGL) 8600 10100
MIXING HGT(M-MSL) 2700 3100
MIXING HGT(FT-MSL) 8800 10300
TRANSPORT WND (M/S) SW 3 SW 4
TRANSPORT WND (MPH) SW 7 SW 9
VENT INDEX (M2/S) 8100 12400
CATEGORY DAY 4 4
500M MIX HGT TEMP (F) 92 92
500M TSPT WIND (M/S) W 4 W 4
500M TSPT WIND (MPH) W 8 W 9
DISPERSION INDEX 6 23 7 28
STABILITY CLASS F B F B
STAGNATION INDEX 3 3 3 3
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 70S. SOUTHWEST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 90S. MINIMUM RH
38 PERCENT. NORTHWEST WINDS AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. NORTH WINDS AROUND
5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. MINIMUM RH
47 PERCENT. NORTH WINDS 5 TO 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
5 TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 80S. MINIMUM RH
44 PERCENT. NORTH WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHEAST
WINDS 5 TO 10 MPH.
THURSDAY
SUNNY. HIGHS IN THE UPPER 80S. MINIMUM RH 41 PERCENT.
NORTHEAST WINDS 5 TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHEAST
WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. MINIMUM RH
42 PERCENT. NORTHEAST WINDS 5 TO 10 MPH.
TNZ001>004-019>022-190900-
BENTON TN-CARROLL-DYER-GIBSON-HENRY-LAKE-OBION-WEAKLEY-
330 PM CDT FRI SEP 18 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
CHANCE OF THUNDER (%) 0 0 0 0
PRECIP CHANCE (%)
PRECIP TYPE NONE NONE NONE NONE
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION (HRS)
PRECIP BEGIN
PRECIP END
TEMP (24H TREND) 71 (+1) 100 (+1) 72 100
RH % (24H TREND) 89 (-7) 32 (-5) 80 32
AM WIND 20FT (MPH) LGT/VAR LGT/VAR
PM WIND 20FT (MPH) LGT/VAR LGT/VAR LGT/VAR W 5
MIXING HGT(M-AGL) 2300 2900
MIXING HGT(FT-AGL) 7600 9500
MIXING HGT(M-MSL) 2400 3000
MIXING HGT(FT-MSL) 8000 9900
TRANSPORT WND (M/S) W 4 W 5
TRANSPORT WND (MPH) W 8 W 10
VENT INDEX (M2/S) 9600 15000
CATEGORY DAY 4 4
500M MIX HGT TEMP (F) 91 92
500M TSPT WIND (M/S) W 3 W 4
500M TSPT WIND (MPH) W 7 W 9
DISPERSION INDEX 2 27 7 32
STABILITY CLASS F B F B
STAGNATION INDEX 3 3 3 3
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. EAST WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S. MINIMUM RH
43 PERCENT. NORTHWEST WINDS AROUND 5 MPH.
MONDAY NIGHT
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS IN THE
UPPER 60S. NORTH WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. MINIMUM RH
57 PERCENT. NORTH WINDS 10 TO 15 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. NORTH
WINDS 10 TO 15 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. MINIMUM RH
56 PERCENT. NORTH WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTH WINDS 5 TO
10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. MINIMUM RH
53 PERCENT. NORTH WINDS 5 TO 10 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. NORTHEAST
WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. MINIMUM RH
54 PERCENT. NORTHEAST WINDS 5 TO 10 MPH.
TNZ048>055-088>091-190900-
CHESTER-CROCKETT-DECATUR-FAYETTE-HARDEMAN-HAYWOOD-HENDERSON-
LAUDERDALE-MADISON-MCNAIRY-SHELBY-TIPTON-
330 PM CDT FRI SEP 18 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER CLEAR MCLEAR MCLEAR MCLEAR
CHANCE OF THUNDER (%) 0 0 0 0
PRECIP CHANCE (%)
PRECIP TYPE NONE NONE NONE NONE
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION (HRS)
PRECIP BEGIN
PRECIP END
TEMP (24H TREND) 72 (+2) 100 (0) 71 99
RH % (24H TREND) 86 (-10) 31 (-4) 82 31
AM WIND 20FT (MPH) LGT/VAR LGT/VAR
PM WIND 20FT (MPH) LGT/VAR LGT/VAR LGT/VAR W 4
MIXING HGT(M-AGL) 2500 3100
MIXING HGT(FT-AGL) 8100 10000
MIXING HGT(M-MSL) 2600 3200
MIXING HGT(FT-MSL) 8500 10400
TRANSPORT WND (M/S) W 3 W 4
TRANSPORT WND (MPH) W 6 W 9
VENT INDEX (M2/S) 7800 12800
CATEGORY DAY 3 4
500M MIX HGT TEMP (F) 92 92
500M TSPT WIND (M/S) W 2 W 4
500M TSPT WIND (MPH) W 4 W 9
DISPERSION INDEX 2 18 7 27
STABILITY CLASS F B F B
STAGNATION INDEX 3 3 3 3
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 90S. MINIMUM RH
39 PERCENT. WEST WINDS AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 90. MINIMUM RH 51 PERCENT.
NORTH WINDS 5 TO 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
10 TO 15 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. MINIMUM RH
51 PERCENT. NORTH WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH
WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. MINIMUM RH
48 PERCENT. NORTH WINDS 5 TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHEAST
WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. MINIMUM RH
49 PERCENT. NORTHEAST WINDS 5 TO 10 MPH.
MSZ001-007-008-010>012-020-021-190900-
COAHOMA-DESOTO-PANOLA-QUITMAN-TALLAHATCHIE-TATE-TUNICA-YALOBUSHA-
330 PM CDT FRI SEP 18 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER CLEAR MCLEAR MCLEAR MCLEAR
CHANCE OF THUNDER (%) 0 0 0 0
PRECIP CHANCE (%)
PRECIP TYPE NONE NONE NONE NONE
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION (HRS)
PRECIP BEGIN
PRECIP END
TEMP (24H TREND) 72 (+2) 101 (+2) 73 101
RH % (24H TREND) 82 (-12) 32 (-4) 81 32
AM WIND 20FT (MPH) LGT/VAR LGT/VAR
PM WIND 20FT (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
MIXING HGT(M-AGL) 2500 3100
MIXING HGT(FT-AGL) 8200 10100
MIXING HGT(M-MSL) 2600 3200
MIXING HGT(FT-MSL) 8500 10400
TRANSPORT WND (M/S) SW 2 SW 3
TRANSPORT WND (MPH) SW 5 SW 7
VENT INDEX (M2/S) 5200 9600
CATEGORY DAY 3 4
500M MIX HGT TEMP (F) 91 92
500M TSPT WIND (M/S) W 3 W 3
500M TSPT WIND (MPH) W 6 W 7
DISPERSION INDEX 5 13 8 23
STABILITY CLASS F B F B
STAGNATION INDEX 3 3 3 3
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 70S. SOUTHWEST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 90S. MINIMUM RH
39 PERCENT. WEST WINDS AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. NORTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S. MINIMUM RH
47 PERCENT. NORTH WINDS 5 TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. NORTH WINDS
10 TO 15 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 80S. MINIMUM RH
46 PERCENT. NORTH WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. NORTHEAST
WINDS 5 TO 10 MPH.
THURSDAY
SUNNY. HIGHS IN THE UPPER 80S. MINIMUM RH 43 PERCENT.
NORTHEAST WINDS 5 TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. NORTHEAST
WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. MINIMUM RH
43 PERCENT. NORTHEAST WINDS 5 TO 10 MPH.
MSZ002>006-009-013>017-022>024-190900-
ALCORN-BENTON MS-CALHOUN-CHICKASAW-ITAWAMBA-LAFAYETTE-LEE MS-
MARSHALL-MONROE-PONTOTOC-PRENTISS-TIPPAH-TISHOMINGO-UNION-
330 PM CDT FRI SEP 18 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER CLEAR MCLEAR MCLEAR MCLEAR
CHANCE OF THUNDER (%) 0 0 0 0
PRECIP CHANCE (%)
PRECIP TYPE NONE NONE NONE NONE
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION (HRS)
PRECIP BEGIN
PRECIP END
TEMP (24H TREND) 72 (+2) 99 (0) 72 99
RH % (24H TREND) 89 (-7) 33 (-4) 89 33
AM WIND 20FT (MPH) LGT/VAR LGT/VAR
PM WIND 20FT (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
MIXING HGT(M-AGL) 2400 2800
MIXING HGT(FT-AGL) 7900 9200
MIXING HGT(M-MSL) 2500 2900
MIXING HGT(FT-MSL) 8300 9600
TRANSPORT WND (M/S) W 2 W 3
TRANSPORT WND (MPH) W 3 W 6
VENT INDEX (M2/S) 5000 8700
CATEGORY DAY 3 4
500M MIX HGT TEMP (F) 92 91
500M TSPT WIND (M/S) NW 1 NW 4
500M TSPT WIND (MPH) NW 3 NW 8
DISPERSION INDEX 2 12 3 19
STABILITY CLASS F B F B
STAGNATION INDEX 3 3 3 3
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 90S. MINIMUM RH
38 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. EAST WINDS AROUND
5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S. MINIMUM RH
46 PERCENT. NORTH WINDS 5 TO 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTH
WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. MINIMUM RH
47 PERCENT. NORTH WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. NORTH WINDS
5 TO 10 MPH.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. MINIMUM RH 44 PERCENT.
NORTH WINDS 5 TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH
WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. MINIMUM RH
44 PERCENT. NORTH WINDS 5 TO 10 MPH.
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