429
FNUS74 KMOB 221016
FWSMOB
SPOT FORECAST FOR DESOTO BLOCK 8301 SOUTH...USFS
NATIONAL WEATHER SERVICE MOBILE AL
516 AM CDT FRI MAY 22 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 CDT ON MAY 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
THERE IS A 100% CHANCE OF RAIN THE REST OF TODAY,
AND A 80% CHANCE OF RAIN TONIGHT, AND A 80% CHANCE OF RAIN
SATURDAY. FOR THE REST OF TODAY, THE MINIMUM RELATIVE HUMIDITY IS
NEAR 75%, 20 FT WIND GUSTS WILL BE UP TO NEAR 20 MPH, TRANSPORT
WINDS WILL BE MOSTLY SOUTHERLY TO SOUTH-SOUTHWESTERLY, AND
DISPERSION VALUES WILL BE GENERALLY GOOD. FOR SATURDAY, THE
MINIMUM RELATIVE HUMIDITY IS NEAR 70%, TRANSPORT WINDS WILL BE
MOSTLY SOUTH-SOUTHWESTERLY TO SOUTHWESTERLY, AND DISPERSION
VALUES WILL BE FAIR.
FOG POTENTIAL AND OTHER REMARKS...FOG IS NOT EXPECTED.
REST OF TODAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF
THUNDERSTORMS IN THE MORNING. SHOWERS THROUGH
THE DAY. THUNDERSTORMS LIKELY IN THE AFTERNOON.
CHANCE OF PCPN......100 PERCENT.
MAX TEMPERATURE.....AROUND 84.
MIN HUMIDITY........77 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 7 MPH EARLY IN
THE MORNING. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS IN THE MORNING. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN
THE AFTERNOON.
MIXING HEIGHT.......2900 FT AGL.
MIXING HEIGHT (M)...213-884 METERS AGL.
TRANSPORT WINDS.....SOUTH 10 TO 18 MPH.
TRANSPORT WINDS M/S.SOUTH 4 TO 8 METERS/SECOND.
DISPERSION INDEX....9 INCREASING TO 23 EARLY IN THE MORNING, THEN
INCREASING TO 39 LATE IN THE MORNING INCREASING
TO 47 EARLY IN THE AFTERNOON.
LVORI...............5.
STABILITY CLASS.....3.
TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM
SKY (%).........78 78 74 83 84 81
WEATHER COV.....DEFNTE DEFNTE DEFNTE DEFNTE DEFNTE DEFNTE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........CHANCE CHANCE CHANCE LIKELY LIKELY LIKELY
CHC OF PCPN (%).100 100 80 80 80 80
TEMP............72 73 78 81 82 81
RH..............93 100 88 79 77 82
20 FT WIND DIR..SSE S S S SSW SSW
20 FT WIND SPD..5 6 8 8 7 6
20 FT WIND GUST.13 15 17 18 16 14
MIX HGT (FT)....700 1400 2000 2900 2800 2800
MIX HGT (M).....210 430 610 880 850 850
TRANSP WIND DIR.S S S SSW SSW SSW
TRANSP WIND SPD.10 13 16 16 14 12
TRANS WIND DIR..S S S SSW SSW SSW
TRANS SPD (M/S).4 6 7 7 6 5
DISPERSION IDX..9 27 42 51 43 36
LVORI...........6 4 4 3 3 3
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) THEN BECOMING
PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING
MOSTLY CLOUDY (50-60 PERCENT) THEN BECOMING
PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING
MOSTLY CLOUDY (55-65 PERCENT). SHOWERS WITH
THUNDERSTORMS LIKELY EARLY IN THE EVENING, THEN
CHANCE OF SHOWERS AND THUNDERSTORMS. PATCHY FOG
AFTER 3 AM.
CHANCE OF PCPN......80 PERCENT.
MIN TEMPERATURE.....AROUND 70.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........SOUTH WINDS AROUND 5 MPH EARLY IN THE EVENING
BECOMING LIGHT. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......400 FT AGL.
MIXING HEIGHT (M)...122-853 METERS AGL.
TRANSPORT WINDS.....SOUTH 7 TO 12 MPH.
TRANSPORT WINDS M/S.SOUTH 3 TO 5 METERS/SECOND.
DISPERSION INDEX....34 DECREASING TO 4.
LVORI...............6.
STABILITY CLASS.....4.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........59 65 62 59 48 50
WEATHER COV.....DEFNTE CHANCE CHANCE CHANCE CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........LIKELY CHANCE CHANCE CHANCE CHANCE CHANCE
CHC OF PCPN (%).80 40 30 30 40 40
TEMP............81 75 73 73 72 72
RH..............82 94 97 93 93 90
20 FT WIND DIR..S SSW S SSE S S
20 FT WIND SPD..6 2 2 2 2 1
20 FT WIND GUST.13 8 8 8 7 6
MIX HGT (FT)....2800 400 400 500 500 400
MIX HGT (M).....850 120 120 150 150 120
TRANSP WIND DIR.SW SSW S S SSW S
TRANSP WIND SPD.12 9 8 8 8 8
TRANS WIND DIR..SW SSW S S SSW S
TRANS SPD (M/S).5 4 4 4 4 4
DISPERSION IDX..34 4 4 4 4 3
LVORI...........3 6 9 6 6 6
SATURDAY
SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). PATCHY FOG EARLY
IN THE MORNING. CHANCE OF THUNDERSTORMS IN THE
MORNING. SHOWERS THROUGH THE DAY. THUNDERSTORMS
LIKELY IN THE AFTERNOON.
CHANCE OF PCPN......80 PERCENT.
MAX TEMPERATURE.....AROUND 86.
MIN HUMIDITY........72 PERCENT.
WIND (20 FT)........LIGHT WINDS. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS IN THE MORNING. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN
THE AFTERNOON.
MIXING HEIGHT.......3800 FT AGL.
MIXING HEIGHT (M)...122-1158 METERS AGL.
TRANSPORT WINDS.....SOUTHWEST 6 TO 10 MPH.
TRANSPORT WINDS M/S.SOUTHWEST 3 TO 4 METERS/SECOND.
DISPERSION INDEX....6 INCREASING TO 30 LATE IN THE MORNING INCREASING
TO 38 LATE IN THE AFTERNOON.
LVORI...............6.
STABILITY CLASS.....2.
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........51 72 52 65 78 62
WEATHER COV.....CHANCE CHANCE DEFNTE DEFNTE DEFNTE DEFNTE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........CHANCE CHANCE CHANCE CHANCE LIKELY CHANCE
CHC OF PCPN (%).50 50 80 80 80 80
TEMP............72 72 79 81 83 84
RH..............90 100 82 79 74 72
20 FT WIND DIR..N N SSW SSW SSW S
20 FT WIND SPD..0 0 2 3 5 5
20 FT WIND GUST.3 3 6 7 10 9
MIX HGT (FT)....400 1100 2100 2500 3300 2200
MIX HGT (M).....120 340 640 760 1010 670
TRANSP WIND DIR.SW SSW SSW WSW SSW SSW
TRANSP WIND SPD.7 7 8 9 9 8
TRANS WIND DIR..SW SSW SSW WSW SSW SSW
TRANS SPD (M/S).3 3 4 4 4 4
DISPERSION IDX..3 8 20 27 34 25
LVORI...........6 8 3 3 3 3
FORECASTER...25
REQUESTED BY...CLIFF WILLIS
TYPE OF REQUEST...PRESCRIBED
.TAG 2614081.2/MOB
.DELDT 05/22/26
.FORMATTERVERSION 2.0.0
.EMAIL CLIFTON.WILLIS@USDA.GOV
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