260
FNUS74 KMOB 201018
FWSMOB
SPOT FORECAST FOR CHICK CPT 451 452...USFS
NATIONAL WEATHER SERVICE MOBILE AL
518 AM CDT WED MAY 20 2026
FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON MAY 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
RAIN CHANCES WILL GRADUALLY INCREASE OVER THE NEXT
COUPLE OF DAYS. THERE IS A 40% CHANCE OF RAIN TODAY AND A 60%
CHANCE OF RAIN THURSDAY. AFTERNOON MINIMUM RELATIVE HUMIDITY
VALUES WILL RANGE AROUND 50% THIS AFTERNOON WITH TRANSPORT WINDS
MOSTLY SOUTHERLY. WINDS MAY BECOME MORE WESTERLY WITH SHOWERS AND
STORMS DURING THE AFTERNOON. AFTERNOON DISPERSION VALUES WILL BE
GENERALLY GOOD. FOR THURSDAY, THE MINIMUM RELATIVE HUMIDITY VALUE
WILL BE AROUND 65%. TRANSPORT WINDS WILL BE MOSTLY SOUTHERLY TO
SOUTH- SOUTHEASTERLY, AND DISPERSION VALUES WILL BE GENERALLY
GOOD. MAX LVORI VALUES EARLY THURSDAY MORNING WILL BE AROUND 6 TO
7.
FOG POTENTIAL AND OTHER REMARKS...FOG IS NOT EXPECTED.
REST OF TODAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE AFTERNOON. CHANCE OF
SHOWERS IN THE AFTERNOON. CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON.
CHANCE OF PCPN......40 PERCENT.
MAX TEMPERATURE.....AROUND 89.
MIN HUMIDITY........52 PERCENT.
WIND (20 FT)........LIGHT WINDS. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS EARLY IN THE AFTERNOON.
GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS LATE IN THE AFTERNOON.
MIXING HEIGHT.......4400 FT AGL.
MIXING HEIGHT (M)...945-1341 METERS AGL.
TRANSPORT WINDS.....SOUTH 8 TO 10 MPH.
TRANSPORT WINDS M/S.SOUTH AROUND 4 METERS/SECOND.
DISPERSION INDEX....42 DECREASING TO 36 LATE IN THE AFTERNOON.
LVORI...............1.
STABILITY CLASS.....2.
TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........44 49 52 45 58 60 67
WEATHER COV..... CHC CHC CHC CHC CHC
WEATHER TYPE.... RW RW RW RW RW
TSTM COV........ SCH SCH SCH CHC CHC
CHC OF PCPN (%).10 10 30 30 30 40 40
TEMP............84 86 87 87 88 87 87
RH..............63 57 53 53 52 55 55
20 FT WIND DIR..S S S S S S SW
20 FT WIND SPD..3 3 3 3 3 5 3
20 FT WIND GUST.8 8 8 8 8 9 9
MIX HGT (KFT)...3.1 3.9 4.2 4.4 4.2 4.0 4.0
MIX HGT (KM)....0.9 1.2 1.3 1.3 1.3 1.2 1.2
TRANSP WIND DIR.S S SSW S SSW SSW SW
TRANSP WIND SPD.10 9 9 8 8 8 8
TRANS WIND DIR..S S SSW S SSW SSW SW
TRANS SPD (M/S).4 4 4 4 4 4 4
DISPERSION IDX..41 46 46 43 37 34 38
LVORI...........1 1 1 1 1 1 1
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT). CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING.
SLIGHT CHANCE OF SHOWERS OVERNIGHT. PATCHY FOG
AFTER 3 AM.
CHANCE OF PCPN......40 PERCENT.
MIN TEMPERATURE.....AROUND 70.
MAX HUMIDITY........90 PERCENT.
WIND (20 FT)........LIGHT WINDS. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS EARLY IN THE EVENING. GUSTY
AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
EARLY IN THE EVENING.
MIXING HEIGHT.......400 FT AGL.
MIXING HEIGHT (M)...122-1219 METERS AGL.
TRANSPORT WINDS.....SOUTHWEST 3 TO 7 MPH.
TRANSPORT WINDS M/S.SOUTH 1 TO 3 METERS/SECOND.
DISPERSION INDEX....33 DECREASING TO 2.
LVORI...............4.
STABILITY CLASS.....4.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........67 71 76 67 68 67 77 65 62 62 61 57
WEATHER COV.....CHC CHC CHC CHC SCH SCH SCH SCH SCH
WEATHER TYPE....RW RW RW RW RW RW RW RNF RNF
TSTM COV........CHC SCH SCH SCH
CHC OF PCPN (%).40 30 30 30 10 10 10 20 20 20 20 20
TEMP............85 81 77 75 74 73 73 72 72 72 71 71
RH..............59 69 79 84 87 90 87 90 90 87 90 90
20 FT WIND DIR..SW WSW SSW SSW S SSW SSE SSE S S S SSE
20 FT WIND SPD..3 2 1 1 1 1 1 1 1 1 1 1
20 FT WIND GUST.9 9 7 6 5 5 5 5 3 5 5 5
MIX HGT (KFT)...4.0 0.8 0.4 0.4 0.4 0.5 0.5 0.5 0.4 0.4 0.4 0.4
MIX HGT (KM)....1.2 0.2 0.1 0.1 0.1 0.2 0.2 0.2 0.1 0.1 0.1 0.1
TRANSP WIND DIR.SW SSW SSW SSW SSW SW SSW SSW S S S SSW
TRANSP WIND SPD.7 6 6 6 6 5 5 6 5 3 3 3
TRANS WIND DIR..SW SSW SSW SSW SSW SW SSW SSW S S S SSW
TRANS SPD (M/S).3 3 3 3 3 2 2 3 2 1 1 1
DISPERSION IDX..33 3 2 2 2 2 2 2 2 2 1 1
LVORI...........1 3 5 6 6 7 7 7 7 7 7 7
THURSDAY
SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). PATCHY FOG EARLY
IN THE MORNING. SLIGHT CHANCE OF SHOWERS EARLY
IN THE MORNING. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS LATE IN THE MORNING,
THEN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
CHANCE OF PCPN......60 PERCENT.
MAX TEMPERATURE.....AROUND 87.
MIN HUMIDITY........63 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH AROUND 5 MPH LATE IN
THE AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS IN THE LATE MORNING AND
AFTERNOON.
MIXING HEIGHT.......5200 FT AGL.
MIXING HEIGHT (M)...122-1585 METERS AGL.
TRANSPORT WINDS.....SOUTH 3 TO 12 MPH.
TRANSPORT WINDS M/S.SOUTH 1 TO 5 METERS/SECOND.
DISPERSION INDEX....3 INCREASING TO 15 LATE IN THE MORNING, THEN
INCREASING TO 32 LATE IN THE MORNING INCREASING
TO 45 EARLY IN THE AFTERNOON DECREASING TO 37.
LVORI...............4.
STABILITY CLASS.....2.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........69 66 68 60 58 55 65 68 67 67 63 71
WEATHER COV.....SCH SCH SCH SCH CHC CHC CHC LKY LKY LKY LKY LKY
WEATHER TYPE....RNF RNF RW RW RW RW RW RW RW RW RW RW
TSTM COV........ SCH SCH SCH CHC CHC CHC CHC CHC
CHC OF PCPN (%).20 20 20 20 30 30 30 60 60 60 60 60
TEMP............71 72 73 74 79 82 84 85 85 86 84 84
RH..............90 90 90 90 77 69 65 63 63 63 67 70
20 FT WIND DIR..SSE S SSW S S S S S S S S S
20 FT WIND SPD..1 1 1 1 2 3 5 5 5 6 6 6
20 FT WIND GUST.5 5 5 6 7 9 10 10 12 13 13 13
MIX HGT (KFT)...0.4 0.4 0.9 1.5 2.2 3.2 4.1 4.5 5.2 4.7 3.4 3.4
MIX HGT (KM)....0.1 0.1 0.3 0.5 0.7 1.0 1.2 1.4 1.6 1.4 1.0 1.0
TRANSP WIND DIR.S SSW SSW SSW S S S S S S S S
TRANSP WIND SPD.3 3 5 7 7 8 8 8 10 12 9 10
TRANS WIND DIR..S SSW SSW SSW S S S S S S S S
TRANS SPD (M/S).1 1 2 3 3 4 4 4 4 5 4 4
DISPERSION IDX..1 3 5 11 19 30 32 34 44 46 33 41
LVORI...........7 6 6 5 3 3 3 3 1 1 3 3
FORECASTER...8
REQUESTED BY...RODNEY LANDRUM
TYPE OF REQUEST...PRESCRIBED
.TAG 2614061.0/MOB
.DELDT 05/20/26
.FORMATTERVERSION 2.0.0
.EMAIL RODNEY.LANDRUM@USDA.GOV
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