FNUS71 KAKQ 171319
FWSAKQ

SPOT FORECAST FOR MCGRAWS ISLAND...US FISH AND WILDLIFE SERVICE (NWR)
NATIONAL WEATHER SERVICE WAKEFIELD VA
819 AM EST TUE FEB 17 2009

FORECAST IS BASED ON IGNITION TIME OF 1000 EST ON FEBRUARY 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

HIGH PRESSURE MOVES ACROSS THE AREA TODAY...THEN DRIFTS OFF THE
COAST TONIGHT. LOW PRESSURE TRACKS THROUGH THE GREAT LAKES STATES
WEDNESDAY...THEN NORTHEAST THROUGH NEW ENGLAND ON THURSDAY. A
TRAILING COLD FRONT CROSSES THE MID ATLANTIC REGION WEDNESDAY
NIGHT. A TROUGH OF LOW PRESSURE WILL THEN LINGER OVER THE EASTERN
SEABOARD THURSDAY...FOLLOWED BY HIGH PRESSURE RETURNING FOR
FRIDAY.

.TODAY...

SKY/WEATHER.........SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....AROUND 43.
MIN HUMIDITY........31 PERCENT.
WIND (20FT/2MIN)....WEST WINDS 5 TO 10 MPH...BECOMING LIGHT AND
                    VARIABLE.
MIXING HEIGHT.......600-1700 FT AGL...INCREASING TO 2600-4200 FT
                    AGL IN THE LATE MORNING AND AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 7 TO 15 MPH...BECOMING WEST AROUND 5
                    MPH LATE.
VENTILATION RATE....VERY POOR TO POOR (8200-40500 FT-MPH).

TIME (EST)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM
SKY (%).........5   7   9   10  13  16  19  22  25  28  32  35
WEATHER COV.....
WEATHER TYPE....
TEMP............38  39  41  43  43  43  43  39  35  32  31  30
RH..............42  40  37  35  33  33  33  39  47  53  58  60
20 FT WIND DIR..N   N   N   NW  W   W   SW  SW  S   S   S   S
20 FT WIND SPD..8   7   7   6   6   5   5   4   3   2   2   2
20 FT WIND GUST.15  10  15  10  10  10  10  5   5
MIX HGT (KFT)...3.6 3.8 4.0 4.2 4.1 4.0 4.0 2.7 1.5 0.3 0.3 0.3
MIXNG WIND DIR..N   N   NW  NW  NW  NW  NW  W   SW  SW  S   S
MIXNG WIND SPD..13  13  12  10  9   8   7   5   2   1   2   5

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT)...THEN BECOMING
                    MOSTLY CLOUDY (60-70 PERCENT).
MIN TEMPERATURE.....AROUND 24.
MAX HUMIDITY........88 PERCENT.
WIND (20FT/2MIN)....LIGHT AND VARIABLE WINDS...BECOMING SOUTH
                    AROUND 6 MPH LATE.
MIXING HEIGHT.......300-1500 FT AGL.
TRANSPORT WINDS.....SOUTH 1 TO 10 MPH...INCREASING TO 12 TO 15 MPH
                    LATE.
VENTILATION RATE....VERY POOR (300-3200 FT-MPH).

.WEDNESDAY...

SKY/WEATHER.........CLOUDY (85-95 PERCENT). A CHANCE OF SNOW EARLY
                    IN THE MORNING. A CHANCE OF RAIN IN THE
                    MORNING...THEN A CHANCE OF RAIN SHOWERS IN THE
                    AFTERNOON.
MAX TEMPERATURE.....AROUND 46.
MIN HUMIDITY........64 PERCENT.
WIND (20FT/2MIN)....SOUTH WINDS 8 TO 13 MPH.
MIXING HEIGHT.......300-2100 FT AGL.
TRANSPORT WINDS.....SOUTH 17 TO 23 MPH...INCREASING TO 28 TO 32 MPH
                    IN THE LATE MORNING AND AFTERNOON.
VENTILATION RATE....VERY POOR TO POOR (3600-35800
                    FT-MPH)...INCREASING TO VERY POOR TO FAIR
                    (24800-56600 FT-MPH) IN THE LATE MORNING AND
                    AFTERNOON.



FORECASTER...GINGRICH
REQUESTED BY...KEITH MORRIS
TYPE OF REQUEST...PRESCRIBED
.TAG 20090217.MCGRA.01/AKQ