FNUS74 KMOB 131949
FWSMOB

SPOT FORECAST FOR 305B...EGLIN AFB
NATIONAL WEATHER SERVICE MOBILE AL
ISSUED BY NATIONAL WEATHER SERVICE NEW ORLEANS LA
249 PM CDT WED MAY 13 2009

FORECAST IS BASED ON IGNITION TIME OF 0800 CDT ON MAY 14.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...DUE TO SURFACE HIGH PRESSURE OVER THE SOUTHWESTERN ATLANTIC...
A SOUTHEAST WIND FLOW WILL PERSIST THROUGH THE PERIOD.  MINIMUM AFTERNOON
RELATIVE HUMIDITIES WILL RANGE WELL ABOVE THE CRITICAL THRESHOLD. GENERALLY
...WINDS WILL VARY FROM EASTERLY OVERNIGHT TO SE AS LAND SFC HEATING BEGINS.
WIND SPEEDS ARE EXPECTED TO BE RELATIVELY LIGHT AT LESS THAN 10 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT). CHANCE OF
                    SHOWERS AND THUNDERSTORMS EARLY IN THE
                    EVENING...THEN SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS EARLY IN THE EVENING.
MIN TEMPERATURE.....AROUND 68.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........EAST WINDS 7 TO 8 MPH. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS EARLY IN THE
                    EVENING.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........EAST 10 TO 12 MPH.
DISPERSION INDEX....8.
LVORI...............3 INCREASING TO 7.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........64     57     57     57     57     57
WEATHER COV.....CHANCE S CHC
WEATHER TYPE....RNSHWR RNSHWR NONE   NONE   NONE   NONE
TEMP............79     76     73     71     69     69
RH..............68     76     84     90     97     97
20 FT WIND DIR..E      E      E      E      E      E
20 FT WIND SPD..6      6      6      7      7      7
MIX HGT (FT)....300    300    300    300    300    300
MIX HGT (M).....90     90     90     90     90     90
TRANSP WIND DIR.E      E      E      E      E      E
TRANSP WIND SPD.10     10     10     12     12     12
TRANS SPD (M/S).4      4      4      5      5      5
DISPERSION......5      9      9      11     11     11
LVORI...........3      4      4      5      6      7
CWR.............40     20     10     10     10     10

.THURSDAY...

SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). CHANCE OF SHOWERS
                    AND THUNDERSTORMS.
MAX TEMPERATURE.....AROUND 83.
MIN HUMIDITY........65 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS AROUND 8 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......300 FT AGL INCREASING TO 2900 FT AGL EARLY IN
                    THE MORNING...THEN INCREASING TO 3300 FT AGL
                    EARLY IN THE MORNING INCREASING TO 3700 FT AGL
                    LATE IN THE MORNING INCREASING TO 4000-4100 FT
                    AGL DECREASING TO 300 FT AGL LATE IN THE
                    AFTERNOON.
MIXING WINDS........SOUTHEAST AROUND 12 MPH.
DISPERSION INDEX....11 INCREASING TO 31...THEN DECREASING TO 6 LATE
                    IN THE AFTERNOON.
LVORI...............7 DECREASING TO 3.

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
SKY (%).........57     69     64     64     67     65
WEATHER COV.....       CHANCE CHANCE CHANCE CHANCE CHANCE
WEATHER TYPE....NONE   RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TEMP............69     73     80     81     81     81
RH..............97     87     69     67     67     65
20 FT WIND DIR..E      E      SE     SE     SE     SE
20 FT WIND SPD..7      7      7      7      7      7
MIX HGT (FT)....300    3300   4000   4100   4100   4100
MIX HGT (M).....90     1010   1220   1250   1250   1250
TRANSP WIND DIR.E      E      SE     SE     SE     SE
TRANSP WIND SPD.12     12     12     12     12     12
TRANS SPD (M/S).5      5      5      5      5      5
DISPERSION......11     30     33     34     34     34
LVORI...........7      4      3      3      3      3
CWR.............10     40     40     50     50     50

$$
FORECASTER...MOB FORECASTER
REQUESTED BY...JERRY COON
TYPE OF REQUEST...PRESCRIBED
.TAG 20090514.305B_.01/MOB