FNUS71 KLWX 241810
FWSLWX

SPOT FORECAST FOR ANTIETAM - OTTO FARM 1...NATIONAL PARK SERVICE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
210 PM EDT TUE MAR 24 2009

FORECAST IS BASED ON IGNITION TIME OF 0930 EDT ON MARCH 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

MOISTURE WILL INCREASE LATER TONIGHT INTO WEDNESDAY AS A COLD FRONT
APPROACHES THE REGION FROM THE WEST WITH RELATIVE HUMIDITIES
GREATER THAN TUESDAY'S LOW VALUES.  INCREASING CHANCES OF WETTING
RAIN THROUGH THE DAY...BUT SHOULD HOLD OFF UNTIL WEDNESDAY NIGHT
IN ANTIETAM AREA. WINDS ALONG CRESTS OF HILLS AND ALONG RIDGETOPS
WILL BE STRONGER THAN AT SURFACE WITH WARM AIR ADVECTION PATTERN.

.WEDNESDAY...

SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT).
MAX TEMPERATURE.....AROUND 50.
MIN HUMIDITY........39 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 8 TO 13 MPH. GUSTS UP TO 20 MPH
                    LATE IN THE MORNING.
CWR.................10 PERCENT.
MIXING HEIGHT.......200-1600 FT AGL...INCREASING TO 2700-4200 FT
                    AGL IN THE LATE MORNING AND AFTERNOON.
MIXING WINDS........SOUTHEAST 7 TO 14 MPH...BECOMING SOUTH 17 TO 20
                    MPH IN THE LATE MORNING AND AFTERNOON.

TIME (EDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........52  61  65  69  76  79  80  83  84
TEMP............35  38  41  44  46  47  48  49  48
RH..............56  50  46  43  40  40  40  39  42
20 FT WIND DIR..SE  SE  S   S   S   S   S   S   SE
20 FT WIND SPD..6   8   10  10  10  10  5   5   5
20 FT WIND GUST.10  15  20  20  20  20  20  25  20
CWR.............10  10  10  10  10  10  10  15  15


$$
FORECASTER...LEE
REQUESTED BY...ED WENSCHHOF
TYPE OF REQUEST...PRESCRIBED
.TAG 20090325.ANTIE.01/LWX