FNUS74 KEPZ 191615 FWSEPZ FIRE WEATHER PLANNING FORECAST FOR SLASH PIT RX...NMLNF NATIONAL WEATHER SERVICE EL PASO TX/SANTA TERESA NM 1015 AM MDT WED AUG 19 2009 FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON AUGUST 19. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... HIGH PRESSURE ALOFT BUILDING OVER THE WESTERN U.S. WILL BRING HOT AND MOSTLY DRY WEATHER THE NEXT FEW DAYS. HOWEVER...DAYTIME HEATING WILL TRIGGER ISOLATED SHOWERS AND THUNDERSTORMS EACH AFTERNOON OVER AREA MOUNTAINS. AN UPPER LEVEL TROUGH AND SURFACE FRONT WILL MOVE IN FROM THE NORTH FRIDAY AND STALL OUT ALONG THE SOUTHERN BORDER. THIS WILL LIKELY BRING AN INCREASE IN SHOWER AND THUNDERSTORM ACTIVITY FRIDAY THROUGH THE WEEKEND. HUMIDITY IN THE UPPER TWENTIES TO LOW THIRTIES THIS AFTERNOON DECREASING TO THE LOW AND MID TWENTIES THURSDAY. .TODAY... SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. CWR.................10 PERCENT. MAX TEMPERATURE.....76-81. MIN HUMIDITY........27-32 PERCENT. WIND (20 FT)........LIGHT THIS MORNING BECOMING SOUTHWEST TO WEST 5 TO 10 MPH. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). CWR.................0 PERCENT. MIN TEMPERATURE.....47-52. MAX HUMIDITY........74-79 PERCENT. WIND (20 FT)........WEST 3 TO 8 MPH BECOMING LIGHT AND MAINLY DOWNSLOPE AFTER MIDNIGHT. .THURSDAY... SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). SLIGHT CHANCE FOR AFTERNOON THUNDERSTORMS. CWR.................10 PERCENT. MAX TEMPERATURE.....76-81. MIN HUMIDITY........21-26 PERCENT. WIND (20 FT)........LIGHT INTO EARLY AFTERNOON THEN NORTHEAST TO EAST 3 TO 8 MPH. $$ FORECASTER...PARK REQUESTED BY...NM ADC REASON FOR REQUEST...PRESCRIBED .TAG 20090819.SLASH.01/EPZ