FNUS74 KEWX 211531 FWSEWX SPOT FORECAST FOR CRAWFORD...US FISH AND WILDLIFE SERVICE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 931 AM CST MON FEB 21 2011 FORECAST IS BASED ON IGNITION TIME OF 1200 CST ON FEBRUARY 21. IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A NORTHEAST TO SOUTHWEST PACIFIC FRONT FROM EAST OF ABILENE TO NEAR DEL RIO WILL MOVE EAST...AND PASS THROUGH THE MARBLE FALLS AREA AROUND 11 AM TO NOON...SHIFTING WINDS GRADUALLY TO THE WEST AND THEN TO THE NORTHWEST NEAR 6 TO 10 MPH. THIS WILL ALLOW SKIES TO SLOWLY GIVE WAY TO PARTLY CLOUDY TO MOSTLY SUNNY CONDITIONS FOR A FEW HOURS. TO THE NORTH...A POLAR COLD FRONT NORTH OF DALLAS-FT. WORTH WILL MOVE ACROSS THE MARBLE FALLS AREA AROUND 3 TO 4 PM IN THE AFTERNOON...CAUSING THE WINDS TO CHANGE TO THE NORTH AND NORTHEAST AROUND 10 MPH. THIS WILL BRING COOLER TEMPERATURES. NORTHEAST WINDS ARE EXPECTED FOR TONIGHT IN WAKE OF THE POLAR FRONT. INCREASING CLOUDINESS IS LIKELY TOWARD THE EARLY MORNING TUESDAY...AS LOW CLOUDS DEVELOP IN AN OVERRUNNING TYPE OF PATTERN. WINDS TUESDAY WILL BECOME EAST AND SOUTHEAST...AS LOW PRESSURE INCREASES IN WEST TEXAS... IN RESPONSE TO DEVELOPING WEATHER SYSTEMS ACROSS THE ROCKIES... THAT COULD BRING A CHANCE OF SHOWERS TO THE AREA LATER THIS WEEK. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT) THEN BECOMING MOSTLY SUNNY (35-45 PERCENT). MAX TEMPERATURE.....AROUND 77. MIN HUMIDITY........31 PERCENT. EYE LEVEL WINDS.....NORTH WINDS 6 TO 10 MPH. WIND (20 FT)........NORTH WINDS 6 TO 10 MPH. HAINES INDEX........3 TO 5. VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH TO MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2100-3900 FT AGL INCREASING TO 4100 FT AGL LATE IN THE AFTERNOON. TRANSPORT WINDS.....WEST 15 TO 24 MPH SHIFTING TO THE NORTH 9 TO 13 MPH LATE IN THE MORNING. TIME (CST) NOON 2 PM 4 PM SKY (%).........50 50 30 WEATHER COV..... WEATHER TYPE....NONE NONE NONE TEMP............73 76 77 RH..............48 37 32 20 FT WIND......NW 9 N 9 N 7 20 FT WIND GUST.10 10 10 EYE LEVEL WIND..NW 7 N 7 N 6 EYE LEVEL WIND..10 10 10 HAINES INDEX....5 4 4 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) THEN BECOMING MOSTLY CLOUDY (75-85 PERCENT). MIN TEMPERATURE.....AROUND 45. MAX HUMIDITY........86 PERCENT. EYE LEVEL WINDS.....NORTHEAST WINDS 5 TO 12 MPH. WIND (20 FT)........NORTHEAST WINDS 5 TO 12 MPH. HAINES INDEX........4 TO 5. LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH TO MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2600-4200 FT AGL DECREASING TO 1000-2000 FT AGL IN THE LATE EVENING AND OVERNIGHT. TRANSPORT WINDS.....NORTHEAST 10 TO 17 MPH SHIFTING TO THE EAST 17 TO 21 MPH LATE IN THE EVENING. TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........20 20 40 70 70 90 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............73 64 57 53 50 47 RH..............32 48 62 71 75 81 20 FT WIND......N 5 NE 7 NE 10 NE 12 NE 10 NE 10 20 FT WIND GUST. 10 15 15 15 EYE LEVEL WIND..N 4 NE 6 NE 8 NE 9 NE 8 NE 7 EYE LEVEL WIND..5 10 15 15 15 10 HAINES INDEX....5 4 4 4 4 4 $$ REQUESTED BY...CARL SCHWOPE TYPE OF REQUEST...PRESCRIBED .TAG 20110221.CRAWF.01/EWX