FNUS71 KLWX 011349 FWSLWX SPOT FORECAST FOR HEADQUARTERS PILE...NPS NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 949 AM EDT MON APR 1 2013 FORECAST IS BASED ON IGNITION TIME OF 0900 EDT ON APRIL 02. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A COLD FRONT MOVES THROUGH THIS AFTERNOON FROM THE NORTHWEST. CANADIAN HIGH PRESSURE BUILDS IN MIDWEEK WHILE COOLER THAN NORMAL TEMPERATURES PERSIST. A COASTAL LOW APPROACHES THE MID-ATLANTIC REGION THURSDAY NIGHT AND FRIDAY...BRINGING RAIN. .TODAY... SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT)...THEN BECOMING MOSTLY CLOUDY (80-90 PERCENT). ISOLATED SHOWERS LATE IN THE MORNING. MAX TEMPERATURE.....AROUND 56. MIN HUMIDITY........40 PERCENT. WIND (20 FT)........WEST WINDS 11 TO 16 MPH. GUSTS UP TO 30 MPH. CWR.................10 PERCENT. MIXING HEIGHT.......0-300 FT AGL...INCREASING TO 6800-7500 FT AGL. TRANSPORT WINDS.....WEST 6 TO 8 MPH...INCREASING TO 29 TO 38 MPH. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........63 49 67 82 94 79 WEATHER COV..... ISOLTD WEATHER TYPE....NONE NONE NONE RNSHWR NONE NONE TEMP............44 45 49 52 55 55 RH..............79 76 68 59 47 41 20 FT WIND......W 7 SW 9 W 12 W 13 W 13 W 12 20 FT WIND GUST.15 20 30 30 30 30 CWR.............0 10 10 20 10 10 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT)...THEN BECOMING PARTLY CLOUDY (25-35 PERCENT)...THEN BECOMING CLEAR (0-10 PERCENT). MIN TEMPERATURE.....AROUND 30. MAX HUMIDITY........59 PERCENT. WIND (20 FT)........WEST WINDS 9 TO 14 MPH. GUSTS UP TO 25 MPH EARLY IN THE EVENING. CWR.................10 PERCENT. MIXING HEIGHT.......6000-6900 FT AGL...DECREASING TO 3600-4900 FT AGL LATE IN THE EVENING...THEN DECREASING TO 2500-3800 FT AGL LATE IN THE EVENING...INCREASING TO 4500-5000 FT AGL LATE. TRANSPORT WINDS.....NORTHWEST 18 TO 26 MPH...DECREASING TO 14 TO 18 MPH IN THE LATE EVENING AND OVERNIGHT. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........61 39 21 10 5 5 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............52 46 42 39 36 34 RH..............41 47 53 57 59 58 20 FT WIND......W 11 NW 10 NW 6 NW 5 W 5 W 6 20 FT WIND GUST.25 25 15 15 15 15 CWR.............10 10 10 10 10 10 .TUESDAY... SKY/WEATHER.........SUNNY (5-15 PERCENT). MAX TEMPERATURE.....AROUND 45. MIN HUMIDITY........26 PERCENT. WIND (20 FT)........WEST WINDS 10 TO 14 MPH WITH GUSTS UP TO 25 MPH. CWR.................10 PERCENT. MIXING HEIGHT.......4400-6000 FT AGL...INCREASING TO 6800-7600 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....WEST 20 TO 25 MPH. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........6 8 10 12 14 8 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............33 33 38 41 43 44 RH..............56 51 38 31 28 27 20 FT WIND......W 8 W 9 W 10 W 10 W 11 W 11 20 FT WIND GUST.20 20 25 25 25 25 CWR.............10 10 10 10 10 10 $$ FORECASTER...JACKSON REQUESTED BY...JOE JARRELLS TYPE OF REQUEST...PRESCRIBED .TAG 20130402.HEADQ.01/LWX