Spot Forecast
Issued by NWS Mobile, AL

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FNUS74 KMOB 022214
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Spot Forecast for Three Rivers Fire...USFWS
National Weather Service Mobile AL
514 PM CDT Sat Aug 2 2025

Forecast is based on forecast start time of 1800 CDT on August 02.
If conditions become unrepresentative...contact the National Weather
Service.

...LOW DISPERSION INDEX AROUND 17 EXPECTED SUNDAY AFTERNOON OVER THE
BURN AREA...

.DISCUSSION...Expect another round of showers and storms to develop
near the burn site overnight and into the morning on Sunday. Winds
continue to turn westerly through the early evening hours before
turning offshore overnight and into the morning on Sunday. Light
winds will turn southerly to southwesterly by Sunday afternoon at
the burn site. RH remains high through Sunday and only falls to
around 70 percent by mid-afternoon on Sunday.

Fog potential and other remarks...Fog is not expected overnight.

.TONIGHT...

Sky/weather.........Mostly cloudy (55-65 percent) then becoming
                    partly cloudy (40-50 percent) then becoming
                    mostly cloudy (65-75 percent). Thunderstorms
                    likely in the evening. Showers likely through
                    the night. Chance of thunderstorms overnight.
Chance of pcpn......60 percent.
Min temperature.....Around 79.
Max humidity........94 percent.
Wind (20 ft)........West winds 5 to 6 mph shifting to the north
                    around 5 mph overnight. Gusty and erratic winds
                    expected near thunderstorms early in the
                    evening. Gusty and erratic winds expected near
                    thunderstorms.
Mixing height.......1200 ft AGL.
Mixing height (m)...366-671 meters AGL.
Transport winds.....West 6 to 9 mph shifting to the northeast 6 to
                    7 mph after 3 am.
Transport winds m/s.West around 4 meters/second shifting to the
                    northeast around 3 meters/second after 3 am.
Dispersion index....26 decreasing to 6.
LVORI...............5.
Stability class.....4.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........59  45  49  61  71  62  60  66  61  64  75  71
Weather cov.....LKY CHC CHC CHC LKY LKY LKY CHC CHC CHC CHC CHC
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........LKY CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
Chc of pcpn (%).60  40  40  40  60  60  60  50  50  50  50  50
Temp............88  86  85  85  84  83  83  82  82  81  81  81
RH..............72  77  80  80  80  85  85  88  85  91  88  91
20 FT wind dir..WSW W   W   WNW WNW NW  N   N   N   NNE NNE NNE
20 FT wind spd..7   7   7   6   6   6   6   6   6   6   6   6
20 FT wind gust.12  10  9   9   9   8   9   9   9   8   9   9
Mix hgt (kft)...2.2 2.1 1.9 1.9 1.9 2.0 1.8 1.4 1.5 1.4 1.2 1.2
Mix hgt (km)....0.7 0.6 0.6 0.6 0.6 0.6 0.5 0.4 0.5 0.4 0.4 0.4
Transp wind dir.W   W   W   W   WNW NW  NNW N   N   NE  NNE N
Transp wind spd.9   9   7   6   6   6   7   9   8   6   7   6
Trans spd (m/s).4   4   3   3   3   3   3   4   4   3   3   3
Dispersion idx..26  7   5   4   4   4   5   5   5   4   4   4
LVORI...........3   4   4   4   5   5   5   5   5   5   5   6

.SUNDAY...

Sky/weather.........Partly sunny (50-60 percent). Chance of
                    thunderstorms in the morning. Showers likely
                    through the day. Thunderstorms likely in the
                    afternoon.
Chance of pcpn......60 percent.
Max temperature.....Around 89.
Min humidity........70 percent.
Wind (20 ft)........Northeast winds 5 to 6 mph shifting to the
                    southwest around 6 mph late in the afternoon.
                    Gusty and erratic winds expected near
                    thunderstorms in the morning. Gusty and erratic
                    winds expected near thunderstorms in the
                    afternoon.
Mixing height.......2000 ft AGL.
Mixing height (m)...396-610 meters AGL.
Transport winds.....Northeast 6 to 7 mph shifting to the west
                    around 7 mph early in the afternoon, then
                    shifting to the southwest late in the afternoon
                    shifting to the west late in the afternoon.
Transport winds m/s.Northeast around 3 meters/second shifting to
                    the west early in the afternoon, then shifting
                    to the southwest late in the afternoon shifting
                    to the west late in the afternoon.
Dispersion index....9 increasing to 16 in the late morning and
                    afternoon.
LVORI...............5.
Stability class.....2.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........73  82  56  49  50  48  44  39  46  42  31  39
Weather cov.....CHC LKY LKY LKY CHC CHC CHC LKY LKY LKY LKY LKY
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........CHC CHC CHC CHC CHC CHC CHC LKY LKY LKY LKY LKY
Chc of pcpn (%).50  60  60  60  50  50  50  60  60  60  60  60
Temp............81  80  81  81  84  85  85  86  87  87  88  87
RH..............91  94  91  91  82  80  80  75  72  70  70  72
20 FT wind dir..NNE NNE NNE NNE NNE N   NW  W   SW  SSW SSW W
20 FT wind spd..7   7   7   7   7   6   6   7   7   7   7   7
20 FT wind gust.9   9   9   9   9   9   9   9   10  10  10  10
Mix hgt (kft)...1.4 1.3 1.3 1.5 1.8 2.0 1.9 1.9 1.5 1.8 1.9 1.9
Mix hgt (km)....0.4 0.4 0.4 0.5 0.5 0.6 0.6 0.6 0.5 0.5 0.6 0.6
Transp wind dir.NNE NNE NE  NE  NNE NNE NNE WNW W   SW  SW  W
Transp wind spd.7   7   7   7   7   6   6   7   7   7   7   7
Trans spd (m/s).3   3   3   3   3   3   3   3   3   3   3   3
Dispersion idx..4   11  12  13  15  16  15  15  14  15  17  17
LVORI...........6   5   5   5   4   4   4   4   4   3   3   3

.SUNDAY NIGHT...

Sky/weather.........Partly cloudy (35-45 percent) then becoming
                    mostly cloudy (55-65 percent) then becoming
                    partly cloudy (40-50 percent) then becoming
                    mostly cloudy (60-70 percent). Showers and
                    thunderstorms likely.
Chance of pcpn......70 percent.
Min temperature.....Around 79.
Max humidity........94 percent.
Wind (20 ft)........West winds around 5 mph early in the evening
                    becoming light, then becoming east 5 to 6 mph
                    overnight. Gusty and erratic winds expected
                    near thunderstorms early in the evening. Gusty
                    and erratic winds expected near thunderstorms
                    in the late evening and overnight.
Mixing height.......1500 ft AGL.
Mixing height (m)...457-671 meters AGL.
Transport winds.....Northwest 6 to 7 mph shifting to the northeast
                    late in the evening, then shifting to the east
                    around 7 mph overnight shifting to the
                    southeast 7 to 8 mph after 3 am.
Transport winds m/s.Northwest around 3 meters/second shifting to
                    the northeast late in the evening, then
                    shifting to the east overnight shifting to the
                    southeast 3 to 4 meters/second after 3 am.
Dispersion index....16 decreasing to 6.
LVORI...............4.
Stability class.....4.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........40  60  45  49  53  53  54  54  60  66  72  74
Weather cov.....LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........LKY LKY LKY LKY CHC CHC CHC CHC CHC CHC LKY LKY
Chc of pcpn (%).60  60  60  60  60  60  60  70  70  70  70  70
Temp............87  87  84  83  84  84  84  83  82  81  81  80
RH..............72  72  80  82  80  80  82  85  88  88  88  91
20 FT wind dir..W   WSW NW  N   NE  NE  ENE E   E   E   E   E
20 FT wind spd..6   6   5   5   5   5   6   6   6   7   7   7
20 FT wind gust.9   9   8   8   8   8   9   9   9   10  10  10
Mix hgt (kft)...1.9 2.2 1.7 1.7 1.7 1.6 1.5 1.5 1.6 1.6 1.6 1.6
Mix hgt (km)....0.6 0.7 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.WNW WNW NW  N   NE  ENE E   E   ESE SSE SSE SSE
Transp wind spd.6   6   7   7   6   6   7   7   7   7   7   8
Trans spd (m/s).3   3   3   3   3   3   3   3   3   3   3   4
Dispersion idx..16  4   4   4   4   4   5   5   5   7   7   8
LVORI...........3   4   4   4   5   5   5   5   5   5   5   5

$$
Forecaster...7
Requested by...Sami Gray
Type of request...WILDFIRE
.TAG 2518997.3/MOB
.DELDT 08/02/25
.FormatterVersion 2.0.0
.EMAIL sami_gray@fws.gov,melanie_dolan@fws.gov,david_stoesz@fws.gov