609
FNUS54 KMEG 180830
FWFMEG
FIRE WEATHER PLANNING FORECAST FOR THE MIDSOUTH
NATIONAL WEATHER SERVICE MEMPHIS TN
330 AM CDT MON MAY 18 2026
DISCUSSION
NO MAJOR FIRE DANGER CONCERNS FOR THE FORESEEABLE FUTURE, WITH
MINRH VALUES REMAINING ABOVE 40%. MULTIPLE ROUNDS OF SHOWERS AND
THUNDERSTORMS WILL MOVE ACROSS THE MID-SOUTH BEGINNING ON TUESDAY
THROUGH THE REMAINDER OF THE WEEK.
ARZ009-018-026>028-MOZ113-115-182100-
CLAY-CRAIGHEAD-DUNKLIN-GREENE-MISSISSIPPI-PEMISCOT-POINSETT-
330 AM CDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
CHANCE OF THUNDER (%) 20 0 50
PRECIP CHANCE (%) 30 20 60
PRECIP TYPE TSTMS SHOWERS TSTMS
PRECIP AMOUNT 0.02 0.01 0.06
PRECIP DURATION (HRS) 1 1 5
PRECIP BEGIN 7 AM CONTINUING 6 AM
PRECIP END CONTINUING 5 AM CONTINUING
TEMP (24H TREND) 88 (0) 71 (0) 89
RH % (24H TREND) 49 (-1) 86 (-1) 56
AM WIND 20FT (MPH) S 13 G23 S 12 G23
PM WIND 20FT (MPH) S 14 G23 S 10 G20 SW 11 G22
MIXING HGT(M-AGL) 1200 1500
MIXING HGT(FT-AGL) 4000 4800
MIXING HGT(M-MSL) 1300 1500
MIXING HGT(FT-MSL) 4300 5000
TRANSPORT WND (M/S) S 10 SW 9
TRANSPORT WND (MPH) S 23 SW 20
VENT INDEX (M2/S) 13000 13500
CATEGORY DAY 4 4
500M MIX HGT TEMP (F) 81 81
500M TSPT WIND (M/S) S 10 SW 10
500M TSPT WIND (MPH) S 22 SW 23
DISPERSION INDEX 64 28 59
STABILITY CLASS C E C
STAGNATION INDEX 2 2 2
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN
THE MID 60S. SOUTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY
SHOWERS LIKELY. MOSTLY CLOUDY. HIGHS IN THE MID 70S.
MINIMUM RH 69 PERCENT. NORTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
A CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS
AROUND 60. NORTHEAST WINDS 5 TO 10 MPH.
THURSDAY
A CHANCE OF SHOWERS. MOSTLY CLOUDY. HIGHS IN THE
UPPER 70S. MINIMUM RH 68 PERCENT. NORTHEAST WINDS 5 TO 10 MPH.
THURSDAY NIGHT
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS 5 TO 10 MPH.
FRIDAY
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. MOSTLY
CLOUDY. HIGHS IN THE UPPER 70S. MINIMUM RH 69 PERCENT. SOUTH
WINDS 5 TO 10 MPH.
FRIDAY NIGHT
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS AROUND 5 MPH.
SATURDAY
A CHANCE OF SHOWERS AND THUNDERSTORMS. MOSTLY CLOUDY.
HIGHS IN THE LOWER 80S. MINIMUM RH 64 PERCENT. SOUTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 5 MPH.
SUNDAY
A CHANCE OF SHOWERS AND THUNDERSTORMS. PARTLY SUNNY.
HIGHS IN THE MID 80S. MINIMUM RH 59 PERCENT. SOUTHEAST WINDS
AROUND 5 MPH.
ARZ035-036-048-049-058-182100-
CRITTENDEN-CROSS-LEE AR-PHILLIPS-ST. FRANCIS-
330 AM CDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
CHANCE OF THUNDER (%) 0 20 20
PRECIP CHANCE (%) 10 20 60
PRECIP TYPE NONE TSTMS TSTMS
PRECIP AMOUNT 0.00 0.01 0.06
PRECIP DURATION (HRS) 1 4
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING CONTINUING
TEMP (24H TREND) 88 (0) 73 (+2) 89
RH % (24H TREND) 50 (-3) 88 (-1) 54
AM WIND 20FT (MPH) S 8 G19 S 7 G19
PM WIND 20FT (MPH) S 9 G20 S 7 G18 S 7 G17
MIXING HGT(M-AGL) 1200 1500
MIXING HGT(FT-AGL) 4100 4900
MIXING HGT(M-MSL) 1300 1600
MIXING HGT(FT-MSL) 4300 5100
TRANSPORT WND (M/S) S 10 SW 8
TRANSPORT WND (MPH) S 22 SW 17
VENT INDEX (M2/S) 13000 12800
CATEGORY DAY 4 4
500M MIX HGT TEMP (F) 80 81
500M TSPT WIND (M/S) S 10 S 9
500M TSPT WIND (MPH) S 22 S 20
DISPERSION INDEX 58 24 49
STABILITY CLASS C E B
STAGNATION INDEX 2 3 3
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS 5 TO 10 MPH.
WEDNESDAY
SHOWERS. HIGHS IN THE UPPER 70S. MINIMUM RH
74 PERCENT. NORTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
MOSTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST WINDS 5 TO 10 MPH.
THURSDAY
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. MOSTLY
CLOUDY. HIGHS IN THE UPPER 70S. MINIMUM RH 72 PERCENT. NORTHEAST
WINDS AROUND 5 MPH.
THURSDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN
THE MID 60S. EAST WINDS AROUND 5 MPH.
FRIDAY
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. MOSTLY
CLOUDY. HIGHS IN THE UPPER 70S. MINIMUM RH 71 PERCENT. SOUTH
WINDS AROUND 5 MPH.
FRIDAY NIGHT
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS AROUND 5 MPH.
SATURDAY
A CHANCE OF SHOWERS AND THUNDERSTORMS. MOSTLY CLOUDY.
HIGHS IN THE LOWER 80S. MINIMUM RH 67 PERCENT. SOUTH WINDS AROUND
5 MPH.
SATURDAY NIGHT
A CHANCE OF SHOWERS AND THUNDERSTORMS. MOSTLY
CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
SUNDAY
A CHANCE OF SHOWERS AND THUNDERSTORMS. PARTLY SUNNY.
HIGHS IN THE MID 80S. MINIMUM RH 62 PERCENT. SOUTHEAST WINDS
AROUND 5 MPH.
TNZ001>004-019>022-182100-
BENTON TN-CARROLL-DYER-GIBSON-HENRY-LAKE-OBION-WEAKLEY-
330 AM CDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
CHANCE OF THUNDER (%) 20 0 50
PRECIP CHANCE (%) 20 10 50
PRECIP TYPE TSTMS NONE TSTMS
PRECIP AMOUNT 0.01 0.00 0.06
PRECIP DURATION (HRS) 1 2
PRECIP BEGIN 7 AM 6 AM
PRECIP END 6 PM CONTINUING
TEMP (24H TREND) 89 (+1) 71 (+3) 90
RH % (24H TREND) 46 (+4) 88 (+4) 53
AM WIND 20FT (MPH) S 8 G21 S 8 G21
PM WIND 20FT (MPH) S 9 G21 S 6 G18 S 8 G19
MIXING HGT(M-AGL) 1100 1500
MIXING HGT(FT-AGL) 3600 4800
MIXING HGT(M-MSL) 1200 1600
MIXING HGT(FT-MSL) 4000 5200
TRANSPORT WND (M/S) S 9 SW 8
TRANSPORT WND (MPH) S 21 SW 18
VENT INDEX (M2/S) 10800 12800
CATEGORY DAY 4 4
500M MIX HGT TEMP (F) 79 81
500M TSPT WIND (M/S) S 9 SW 9
500M TSPT WIND (MPH) S 21 SW 20
DISPERSION INDEX 55 21 56
STABILITY CLASS C E C
STAGNATION INDEX 2 3 2
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN
THE MID 60S. SOUTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY
SHOWERS. HIGHS IN THE UPPER 70S. MINIMUM RH
69 PERCENT. NORTH WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
A CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS IN
THE LOWER 60S. NORTHEAST WINDS 5 TO 10 MPH.
THURSDAY
A CHANCE OF SHOWERS AND THUNDERSTORMS. MOSTLY CLOUDY.
HIGHS IN THE UPPER 70S. MINIMUM RH 66 PERCENT. NORTHEAST WINDS
5 TO 10 MPH.
THURSDAY NIGHT
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS AROUND 5 MPH.
FRIDAY
SHOWERS AND A CHANCE OF THUNDERSTORMS. HIGHS AROUND 80.
MINIMUM RH 69 PERCENT. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS AROUND 5 MPH.
SATURDAY
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. MOSTLY
CLOUDY. HIGHS IN THE LOWER 80S. MINIMUM RH 64 PERCENT. SOUTHWEST
WINDS AROUND 5 MPH.
SATURDAY NIGHT
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS IN THE
MID 60S. SOUTH WINDS AROUND 5 MPH.
SUNDAY
A CHANCE OF SHOWERS AND THUNDERSTORMS. PARTLY SUNNY.
HIGHS IN THE MID 80S. MINIMUM RH 59 PERCENT. SOUTH WINDS AROUND
5 MPH.
TNZ048>055-088>091-182100-
CHESTER-CROCKETT-DECATUR-FAYETTE-HARDEMAN-HAYWOOD-HENDERSON-
LAUDERDALE-MADISON-MCNAIRY-SHELBY-TIPTON-
330 AM CDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
CHANCE OF THUNDER (%) 0 0 40
PRECIP CHANCE (%) 10 20 40
PRECIP TYPE NONE SHOWERS TSTMS
PRECIP AMOUNT 0.00 0.00 0.05
PRECIP DURATION (HRS) 1 1
PRECIP BEGIN 8 PM 12 PM
PRECIP END 6 AM CONTINUING
TEMP (24H TREND) 88 (+1) 70 (+2) 89
RH % (24H TREND) 46 (0) 87 (+1) 51
AM WIND 20FT (MPH) S 8 G19 S 7 G19
PM WIND 20FT (MPH) S 9 G19 S 6 G17 S 7 G17
MIXING HGT(M-AGL) 1100 1600
MIXING HGT(FT-AGL) 3600 5300
MIXING HGT(M-MSL) 1200 1700
MIXING HGT(FT-MSL) 4000 5700
TRANSPORT WND (M/S) S 8 SW 7
TRANSPORT WND (MPH) S 18 SW 16
VENT INDEX (M2/S) 9600 11900
CATEGORY DAY 4 4
500M MIX HGT TEMP (F) 78 80
500M TSPT WIND (M/S) S 9 S 8
500M TSPT WIND (MPH) S 20 S 18
DISPERSION INDEX 50 20 50
STABILITY CLASS C E B
STAGNATION INDEX 2 3 3
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY
SHOWERS. HIGHS AROUND 80. MINIMUM RH 70 PERCENT.
NORTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
SHOWERS LIKELY. MOSTLY CLOUDY. LOWS IN THE
LOWER 60S. NORTHEAST WINDS 5 TO 10 MPH.
THURSDAY
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. MOSTLY
CLOUDY. HIGHS IN THE UPPER 70S. MINIMUM RH 68 PERCENT. NORTHEAST
WINDS AROUND 5 MPH.
THURSDAY NIGHT
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
MOSTLY CLOUDY. LOWS IN THE MID 60S. EAST WINDS AROUND 5 MPH.
FRIDAY
SHOWERS AND A CHANCE OF THUNDERSTORMS. HIGHS AROUND 80.
MINIMUM RH 67 PERCENT. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS AROUND 5 MPH.
SATURDAY
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. MOSTLY
CLOUDY. HIGHS IN THE LOWER 80S. MINIMUM RH 64 PERCENT. SOUTHWEST
WINDS AROUND 5 MPH.
SATURDAY NIGHT
A CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS IN THE
MID 60S. SOUTH WINDS AROUND 5 MPH.
SUNDAY
A CHANCE OF SHOWERS AND THUNDERSTORMS. PARTLY SUNNY.
HIGHS IN THE MID 80S. MINIMUM RH 59 PERCENT. SOUTH WINDS AROUND
5 MPH.
MSZ001-007-008-010>012-020-021-182100-
COAHOMA-DESOTO-PANOLA-QUITMAN-TALLAHATCHIE-TATE-TUNICA-YALOBUSHA-
330 AM CDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
CHANCE OF THUNDER (%) 0 0 20
PRECIP CHANCE (%) 10 20 40
PRECIP TYPE NONE SHOWERS TSTMS
PRECIP AMOUNT 0.00 0.01 0.06
PRECIP DURATION (HRS) 1 1
PRECIP BEGIN 7 PM 12 PM
PRECIP END 5 AM CONTINUING
TEMP (24H TREND) 90 (+3) 71 (+1) 91
RH % (24H TREND) 47 (-7) 87 (0) 50
AM WIND 20FT (MPH) S 7 G18 S 6 G18
PM WIND 20FT (MPH) S 9 G19 S 6 G17 S 6
MIXING HGT(M-AGL) 1300 1500
MIXING HGT(FT-AGL) 4200 5000
MIXING HGT(M-MSL) 1400 1600
MIXING HGT(FT-MSL) 4500 5300
TRANSPORT WND (M/S) S 9 S 7
TRANSPORT WND (MPH) S 20 S 15
VENT INDEX (M2/S) 12600 11200
CATEGORY DAY 4 4
500M MIX HGT TEMP (F) 79 80
500M TSPT WIND (M/S) S 8 S 8
500M TSPT WIND (MPH) S 18 S 17
DISPERSION INDEX 52 24 45
STABILITY CLASS C E B
STAGNATION INDEX 2 3 3
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS 5 TO 10 MPH.
WEDNESDAY
SHOWERS AND A CHANCE OF THUNDERSTORMS. HIGHS IN THE
LOWER 80S. MINIMUM RH 67 PERCENT. EAST WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
MOSTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST WINDS AROUND 5 MPH.
THURSDAY
SHOWERS AND A CHANCE OF THUNDERSTORMS. HIGHS AROUND
80. MINIMUM RH 68 PERCENT. EAST WINDS AROUND 5 MPH.
THURSDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN
THE MID 60S. SOUTHEAST WINDS AROUND 5 MPH.
FRIDAY
SHOWERS AND A CHANCE OF THUNDERSTORMS. HIGHS IN THE
LOWER 80S. MINIMUM RH 68 PERCENT. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
SATURDAY
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. MOSTLY
CLOUDY. HIGHS IN THE LOWER 80S. MINIMUM RH 65 PERCENT. SOUTH
WINDS AROUND 5 MPH.
SATURDAY NIGHT
A CHANCE OF SHOWERS AND THUNDERSTORMS. MOSTLY
CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
SUNDAY
A CHANCE OF SHOWERS AND THUNDERSTORMS. PARTLY SUNNY.
HIGHS IN THE MID 80S. MINIMUM RH 60 PERCENT. SOUTHEAST WINDS
AROUND 5 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 MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
CHANCE OF THUNDER (%) 0 0 20
PRECIP CHANCE (%) 10 10 30
PRECIP TYPE NONE NONE TSTMS
PRECIP AMOUNT 0.00 0.00 0.03
PRECIP DURATION (HRS) 1
PRECIP BEGIN 12 PM
PRECIP END CONTINUING
TEMP (24H TREND) 88 (+1) 70 (+4) 89
RH % (24H TREND) 47 (+3) 93 (+2) 48
AM WIND 20FT (MPH) S 6 S 5
PM WIND 20FT (MPH) S 7 S 4 S 6
MIXING HGT(M-AGL) 1200 1600
MIXING HGT(FT-AGL) 4000 5200
MIXING HGT(M-MSL) 1400 1700
MIXING HGT(FT-MSL) 4400 5600
TRANSPORT WND (M/S) S 8 S 6
TRANSPORT WND (MPH) S 17 S 14
VENT INDEX (M2/S) 11200 10200
CATEGORY DAY 4 4
500M MIX HGT TEMP (F) 78 79
500M TSPT WIND (M/S) S 7 S 7
500M TSPT WIND (MPH) S 15 S 15
DISPERSION INDEX 44 11 43
STABILITY CLASS B E B
STAGNATION INDEX 3 3 3
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
SHOWERS AND A CHANCE OF THUNDERSTORMS. HIGHS IN THE
LOWER 80S. MINIMUM RH 66 PERCENT. EAST WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN
THE MID 60S. NORTHEAST WINDS AROUND 5 MPH.
THURSDAY
SHOWERS AND A CHANCE OF THUNDERSTORMS. HIGHS IN THE
LOWER 80S. MINIMUM RH 69 PERCENT. EAST WINDS AROUND 5 MPH.
THURSDAY NIGHT
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST WINDS AROUND 5 MPH.
FRIDAY
SHOWERS AND A CHANCE OF THUNDERSTORMS. HIGHS IN THE
LOWER 80S. MINIMUM RH 68 PERCENT. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN
THE MID 60S. SOUTH WINDS AROUND 5 MPH.
SATURDAY
SHOWERS AND A CHANCE OF THUNDERSTORMS. HIGHS IN THE
LOWER 80S. MINIMUM RH 65 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
SATURDAY NIGHT
A CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS IN THE
MID 60S. SOUTH WINDS AROUND 5 MPH.
SUNDAY
A CHANCE OF SHOWERS AND THUNDERSTORMS. PARTLY SUNNY.
HIGHS IN THE MID 80S. MINIMUM RH 61 PERCENT. SOUTH WINDS AROUND
5 MPH.
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