Suppression Forecast
Issued by NWS Mobile, AL

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000
FNUS74 KMOB 032041 AAA
FWSMOB

SPOT FORECAST FOR DESOTO 5201...UPDATED
NATIONAL WEATHER SERVICE MOBILE AL
341 PM CDT SUN MAY 3 2015

FORECAST IS BASED ON IGNITION TIME OF 1600 CDT ON MAY 03.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A SURFACE RIDGE STRETCHING WEST OVER THE SOUTHEASTERN
STATES WILL CREATE A GENERAL EAST TO SOUTHEAST FLOW IN THE MIXING
LAYER THROUGH THE WEEK. WARM AFTERNOON TEMPERATURES AND MODERATE
TRANSPORT WINDS WILL ALLOW AREAS MAINLY ALONG AND NORTH IF HIGHWAY
84 TO SEE DISPERSION RISING ABOVE 80.

FOG POTENTIAL AND OTHER REMARKS...PATCHY FOG LIKELY OVERNIGHT AND
EARLY MONDAY MORNING.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT). PATCHY FOG AFTER
                    MIDNIGHT.
MIN TEMPERATURE.....AROUND 57.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........SOUTH-SOUTHEAST WINDS 6 TO 7 MPH IN THE EVENING
                    BECOMING LIGHT.
MIXING HEIGHT.......7200 FT AGL DECREASING TO 100 FT AGL.
MIXING WINDS........SOUTH-SOUTHEAST 9 TO 10 MPH SHIFTING TO THE
                    NORTHEAST AROUND 6 MPH EARLY IN THE MORNING.
DISPERSION INDEX....47 DECREASING TO 4.
LVORI...............1 INCREASING TO 9.
STABILITY CLASS.....B BECOMING F.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%)...........17     12     12     12     14     14
WEATHER COV.......                            PATCHY PATCHY
WEATHER TYPE......NONE   NONE   NONE   NONE   FOG    FOG
TEMP..............77     69     64     62     60     59
RH................42     59     73     83     88     96
20 FT WIND DIR....SSE    SSE    SSE    SSE    SE     ESE
20 FT WIND SPD....6      5      5      5      4      3
20 FT WIND GUST...
MIX HGT (FT)......7200   3900   500    500    300    100
MIX HGT (M).......2190   1190   150    150    90     30
TRANSP WIND DIR...SE     SE     SSE    SSE    ESE    NE
TRANSP WIND SPD...10     9      10     10     7      6
TRANS SPD (M/S)...4      4      4      4      3      3
DISPERSION........47     4      4      4      3      3
LVORI.............1      3      4      4      6      9
STABILITY CLASS...B      F      F      F      F      F
CWR...............10     0      0      0      0      0

.MONDAY...

SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). PATCHY FOG EARLY
                    IN THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS
                    AND RAIN SHOWERS.
MAX TEMPERATURE.....AROUND 84.
MIN HUMIDITY........43 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 6 TO 8 MPH IN
                    THE LATE MORNING AND AFTERNOON. GUSTY AND
                    ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......100 FT AGL INCREASING TO 4000 FT AGL LATE IN
                    THE MORNING...THEN INCREASING TO 7900 FT AGL
                    EARLY IN THE AFTERNOON DECREASING TO 6900 FT
                    AGL LATE IN THE AFTERNOON.
MIXING WINDS........NORTHEAST 6 TO 7 MPH INCREASING TO
                    EAST-SOUTHEAST AROUND 13 MPH LATE IN THE
                    MORNING...THEN SHIFTING TO THE SOUTH-SOUTHEAST
                    14 TO 15 MPH IN THE AFTERNOON.
DISPERSION INDEX....2 INCREASING TO 101.
LVORI...............9 DECREASING TO 1.
STABILITY CLASS.....F BECOMING B IN THE MORNING...THEN BECOMING C
                    EARLY IN THE AFTERNOON BECOMING B LATE IN THE
                    AFTERNOON.

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
SKY (%)...........14     35     35     35     42     42
WEATHER COV.......PATCHY S CHC  S CHC  S CHC  S CHC  S CHC
WEATHER TYPE......FOG    TSTORM TSTORM TSTORM TSTORM TSTORM
TEMP..............57     64     74     80     83     83
RH................100    84     59     48     43     43
20 FT WIND DIR....ESE    E      ESE    ESE    SE     SE
20 FT WIND SPD....3      4      5      5      7      6
20 FT WIND GUST...
MIX HGT (FT)......100    100    4000   4000   7900   6900
MIX HGT (M).......30     30     1220   1220   2410   2100
TRANSP WIND DIR...NE     NE     ESE    ESE    SSE    SSE
TRANSP WIND SPD...6      7      13     13     14     15
TRANS SPD (M/S)...3      3      6      6      6      7
DISPERSION........3      1      58     58     72     101
LVORI.............9      6      1      1      1      1
STABILITY CLASS...F      B      B      B      C      B
CWR...............0      20     20     20     20     20

$$
FORECASTER...32
REQUESTED BY...JAY BOYKIN
TYPE OF REQUEST...PRESCRIBED
.TAG 20150503.DESOT.02/MOB



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