463
FNUS54 KMEG 180830
FWFMEG
FIRE WEATHER PLANNING FORECAST FOR THE MIDSOUTH
NATIONAL WEATHER SERVICE MEMPHIS TN
330 AM CDT FRI SEP 18 2026
DISCUSSION
AN UNUSUALLY PERSISTENT 600-DAM UPPER-LEVEL RIDGE CENTERED OVER
THE REGION WILL MAINTAIN NEAR-RECORD, MIDSUMMER-LIKE HEAT AND
RAIN-FREE CONDITIONS. AFTERNOON MINIMUM RELATIVE HUMIDITY (RH)
VALUES WILL RANGE FROM 30% TO 40%, SLOWLY DRYING OUT 10-HOUR FINE
FUELS. HOWEVER, BECAUSE HIGH PRESSURE WILL KEEP 20-FOOT SURFACE
WINDS UNDER 10 MPH, WIDESPREAD CRITICAL FIRE WEATHER CONDITIONS
ARE NOT ANTICIPATED. CLEAR SKIES AND LIGHT OVERNIGHT WINDS WILL
RESULT IN MINIMAL TO NON-EXISTENT FOG POTENTIAL.
ARZ009-018-026>028-MOZ113-115-182100-
CLAY-CRAIGHEAD-DUNKLIN-GREENE-MISSISSIPPI-PEMISCOT-POINSETT-
330 AM CDT FRI SEP 18 2026
TODAY TONIGHT SAT
CLOUD COVER CLEAR MCLEAR MCLEAR
CHANCE OF THUNDER (%) 0 0 0
PRECIP CHANCE (%)
PRECIP TYPE NONE NONE NONE
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION (HRS)
PRECIP BEGIN
PRECIP END
TEMP (24H TREND) 99 (+1) 72 (-1) 99
RH % (24H TREND) 30 (-8) 78 (-6) 32
AM WIND 20FT (MPH) LGT/VAR LGT/VAR
PM WIND 20FT (MPH) LGT/VAR LGT/VAR SW 4
MIXING HGT(M-AGL) 2300 2600
MIXING HGT(FT-AGL) 7500 8600
MIXING HGT(M-MSL) 2400 2700
MIXING HGT(FT-MSL) 7800 8900
TRANSPORT WND (M/S) SW 3 SW 4
TRANSPORT WND (MPH) SW 6 SW 9
VENT INDEX (M2/S) 7200 10800
CATEGORY DAY 3 4
500M MIX HGT TEMP (F) 91 92
500M TSPT WIND (M/S) W 3 W 4
500M TSPT WIND (MPH) W 8 W 10
DISPERSION INDEX 16 6 31
STABILITY CLASS B F B
STAGNATION INDEX 3 3 3
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE UPPER 90S. MINIMUM RH 33 PERCENT.
SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. WEST WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S. MINIMUM RH
41 PERCENT. NORTHWEST 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
52 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
48 PERCENT. NORTH WINDS 10 TO 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTHEAST WINDS
10 TO 15 MPH.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. MINIMUM RH 46 PERCENT.
NORTH WINDS 5 TO 10 MPH.
ARZ035-036-048-049-058-182100-
CRITTENDEN-CROSS-LEE AR-PHILLIPS-ST. FRANCIS-
330 AM CDT FRI SEP 18 2026
TODAY TONIGHT SAT
CLOUD COVER CLEAR MCLEAR MCLEAR
CHANCE OF THUNDER (%) 0 0 0
PRECIP CHANCE (%)
PRECIP TYPE NONE NONE NONE
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION (HRS)
PRECIP BEGIN
PRECIP END
TEMP (24H TREND) 101 (+2) 73 (0) 101
RH % (24H TREND) 28 (-5) 72 (-10) 28
AM WIND 20FT (MPH) LGT/VAR LGT/VAR
PM WIND 20FT (MPH) LGT/VAR LGT/VAR LGT/VAR
MIXING HGT(M-AGL) 2500 2500
MIXING HGT(FT-AGL) 8200 8200
MIXING HGT(M-MSL) 2600 2600
MIXING HGT(FT-MSL) 8400 8400
TRANSPORT WND (M/S) S 2 SW 3
TRANSPORT WND (MPH) S 5 SW 7
VENT INDEX (M2/S) 5200 7800
CATEGORY DAY 3 3
500M MIX HGT TEMP (F) 91 92
500M TSPT WIND (M/S) SW 3 W 4
500M TSPT WIND (MPH) SW 7 W 9
DISPERSION INDEX 12 7 24
STABILITY CLASS B F B
STAGNATION INDEX 3 3 3
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 100. MINIMUM RH 32 PERCENT.
SOUTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTHWEST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 90S. MINIMUM RH
35 PERCENT. WEST WINDS AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. NORTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. MINIMUM RH
44 PERCENT. NORTH WINDS 5 TO 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
5 TO 10 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. MINIMUM RH
42 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 39 PERCENT.
NORTHEAST WINDS 5 TO 10 MPH.
TNZ001>004-019>022-182100-
BENTON TN-CARROLL-DYER-GIBSON-HENRY-LAKE-OBION-WEAKLEY-
330 AM CDT FRI SEP 18 2026
TODAY TONIGHT SAT
CLOUD COVER CLEAR MCLEAR MCLEAR
CHANCE OF THUNDER (%) 0 0 0
PRECIP CHANCE (%)
PRECIP TYPE NONE NONE NONE
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION (HRS)
PRECIP BEGIN
PRECIP END
TEMP (24H TREND) 100 (+3) 72 (0) 100
RH % (24H TREND) 31 (-10) 83 (-8) 33
AM WIND 20FT (MPH) LGT/VAR LGT/VAR
PM WIND 20FT (MPH) LGT/VAR LGT/VAR LGT/VAR
MIXING HGT(M-AGL) 2100 2700
MIXING HGT(FT-AGL) 6900 8800
MIXING HGT(M-MSL) 2200 2800
MIXING HGT(FT-MSL) 7300 9200
TRANSPORT WND (M/S) NW 2 W 4
TRANSPORT WND (MPH) NW 5 W 8
VENT INDEX (M2/S) 4400 11200
CATEGORY DAY 3 4
500M MIX HGT TEMP (F) 90 92
500M TSPT WIND (M/S) W 2 W 4
500M TSPT WIND (MPH) W 5 W 8
DISPERSION INDEX 21 2 25
STABILITY CLASS B F B
STAGNATION INDEX 3 3 3
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE UPPER 90S. MINIMUM RH 34 PERCENT.
SOUTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S. MINIMUM RH
40 PERCENT. WEST WINDS AROUND 5 MPH.
MONDAY NIGHT
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS IN THE
UPPER 60S. NORTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. MINIMUM RH
56 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
53 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
50 PERCENT. NORTH WINDS 5 TO 10 MPH.
TNZ048>055-088>091-182100-
CHESTER-CROCKETT-DECATUR-FAYETTE-HARDEMAN-HAYWOOD-HENDERSON-
LAUDERDALE-MADISON-MCNAIRY-SHELBY-TIPTON-
330 AM CDT FRI SEP 18 2026
TODAY TONIGHT SAT
CLOUD COVER CLEAR MCLEAR MCLEAR
CHANCE OF THUNDER (%) 0 0 0
PRECIP CHANCE (%)
PRECIP TYPE NONE NONE NONE
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION (HRS)
PRECIP BEGIN
PRECIP END
TEMP (24H TREND) 100 (+2) 72 (0) 99
RH % (24H TREND) 29 (-8) 78 (-11) 32
AM WIND 20FT (MPH) LGT/VAR LGT/VAR
PM WIND 20FT (MPH) LGT/VAR LGT/VAR LGT/VAR
MIXING HGT(M-AGL) 2400 2800
MIXING HGT(FT-AGL) 7800 9100
MIXING HGT(M-MSL) 2500 2900
MIXING HGT(FT-MSL) 8200 9500
TRANSPORT WND (M/S) NW 2 W 3
TRANSPORT WND (MPH) NW 5 W 7
VENT INDEX (M2/S) 5000 8700
CATEGORY DAY 3 4
500M MIX HGT TEMP (F) 90 92
500M TSPT WIND (M/S) W 2 W 3
500M TSPT WIND (MPH) W 5 W 7
DISPERSION INDEX 18 2 22
STABILITY CLASS B F B
STAGNATION INDEX 3 3 3
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE UPPER 90S. MINIMUM RH 33 PERCENT.
SOUTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 70S. SOUTH WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 90S. MINIMUM RH
37 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY NIGHT
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS AROUND
70. NORTHEAST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 90. MINIMUM RH 49 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
47 PERCENT. NORTH WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH
WINDS 5 TO 10 MPH.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. MINIMUM RH 44 PERCENT.
NORTH WINDS 5 TO 10 MPH.
MSZ001-007-008-010>012-020-021-182100-
COAHOMA-DESOTO-PANOLA-QUITMAN-TALLAHATCHIE-TATE-TUNICA-YALOBUSHA-
330 AM CDT FRI SEP 18 2026
TODAY TONIGHT SAT
CLOUD COVER CLEAR MCLEAR MCLEAR
CHANCE OF THUNDER (%) 0 0 0
PRECIP CHANCE (%)
PRECIP TYPE NONE NONE NONE
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION (HRS)
PRECIP BEGIN
PRECIP END
TEMP (24H TREND) 100 (+3) 72 (0) 101
RH % (24H TREND) 29 (-9) 76 (-11) 32
AM WIND 20FT (MPH) LGT/VAR LGT/VAR
PM WIND 20FT (MPH) LGT/VAR LGT/VAR LGT/VAR
MIXING HGT(M-AGL) 2500 2500
MIXING HGT(FT-AGL) 8100 8200
MIXING HGT(M-MSL) 2500 2600
MIXING HGT(FT-MSL) 8300 8400
TRANSPORT WND (M/S) E 2 SW 3
TRANSPORT WND (MPH) E 3 SW 6
VENT INDEX (M2/S) 5000 7800
CATEGORY DAY 3 3
500M MIX HGT TEMP (F) 89 92
500M TSPT WIND (M/S) SW 3 W 3
500M TSPT WIND (MPH) SW 6 W 8
DISPERSION INDEX 12 3 15
STABILITY CLASS B F B
STAGNATION INDEX 3 3 3
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 100. MINIMUM RH 34 PERCENT.
SOUTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTHWEST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 90S. MINIMUM RH
37 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S. MINIMUM RH
45 PERCENT. NORTH WINDS 5 TO 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTH
WINDS 10 TO 15 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. MINIMUM RH
43 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 41 PERCENT.
NORTHEAST WINDS 5 TO 10 MPH.
MSZ002>006-009-013>017-022>024-182100-
ALCORN-BENTON MS-CALHOUN-CHICKASAW-ITAWAMBA-LAFAYETTE-LEE MS-
MARSHALL-MONROE-PONTOTOC-PRENTISS-TIPPAH-TISHOMINGO-UNION-
330 AM CDT FRI SEP 18 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
CHANCE OF THUNDER (%) 0 0 0
PRECIP CHANCE (%)
PRECIP TYPE NONE NONE NONE
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION (HRS)
PRECIP BEGIN
PRECIP END
TEMP (24H TREND) 99 (+2) 72 (+1) 99
RH % (24H TREND) 31 (-7) 80 (-8) 32
AM WIND 20FT (MPH) LGT/VAR LGT/VAR
PM WIND 20FT (MPH) LGT/VAR LGT/VAR LGT/VAR
MIXING HGT(M-AGL) 2300 2700
MIXING HGT(FT-AGL) 7700 8800
MIXING HGT(M-MSL) 2500 2800
MIXING HGT(FT-MSL) 8100 9200
TRANSPORT WND (M/S) NE 2 NW 2
TRANSPORT WND (MPH) NE 5 NW 5
VENT INDEX (M2/S) 5000 5600
CATEGORY DAY 3 3
500M MIX HGT TEMP (F) 89 91
500M TSPT WIND (M/S) N 2 NW 3
500M TSPT WIND (MPH) N 5 NW 6
DISPERSION INDEX 15 2 15
STABILITY CLASS B F B
STAGNATION INDEX 3 3 3
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE UPPER 90S. MINIMUM RH 35 PERCENT.
SOUTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. 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 IN THE LOWER 70S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S. MINIMUM RH
44 PERCENT. NORTHWEST WINDS 5 TO 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
5 TO 10 MPH.
WEDNESDAY
MOSTLY 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. NORTH
WINDS 5 TO 10 MPH.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. MINIMUM RH 42 PERCENT.
NORTH WINDS 5 TO 10 MPH.
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