FNUS73 KABR 281246 FWSABR SPOT FORECAST FOR COWAN HARTER...US FISH AND WILDLIFE SERVICE NATIONAL WEATHER SERVICE ABERDEEN SD 746 AM CDT THU APR 28 2011 FORECAST IS BASED ON IGNITION TIME OF 1030 CDT ON APRIL 28. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... WARMER TEMPERATURES AND CONSIDERABLY DRIER CONDITIONS DEVELOPING ACROSS THE REGION TODAY WHILE HIGH PRESSURE BUILDS ACROSS THE DAKOTAS FROM THE WEST. WIND SPEEDS ARE EXPECTED TO BE THE STRONGEST DURING THE MORNING HOURS...WITH SPEEDS STEADYING OUT OR PERHAPS DECREASING SOME BY THIS AFTERNOON...WHILE THE WIND DIRECTION GRADUALLY SHIFTS FROM NORTHWEST THIS MORNING TO MORE WEST-SOUTHWEST BY EARLY THIS EVENING. SOUTHERLY WINDS START TO PICK UP BY LATE TONIGHT...PERSISTING STRAIGHT ON THROUGH FRIDAY OUT AHEAD OF A COLD FRONT FORECAST TO WORK THROUGH SOUTH DAKOTA FRIDAY AND FRIDAY NIGHT. THERE WILL ONLY BE A MODEST INCREASE IN LOW LEVEL MOISTURE OUT AHEAD OF THE COLD FRONTAL PASSAGE ON THOSE STRONGER SOUTHERLY WINDS FRIDAY. CHANCES FOR RAIN SHOWERS AND THUNDERSTORMS ALSO INCREASE THROUGHOUT THE DAY FRIDAY INTO FRIDAY NIGHT...WITH FAR NORTHEAST SOUTH DAKOTA AND WEST CENTRAL MINNESOTA SEEING THE HIGHEST PROBABILITY OF WETTING RAINS FRIDAY NIGHT. .TODAY... SKY/WEATHER.........SUNNY (15-25 PERCENT CLOUD). MAX TEMPERATURE.....64-69. MIN HUMIDITY........31-36 PERCENT. WIND (20 FT)........WEST WINDS 5 TO 13 MPH. GUSTS UP TO 20 MPH IN THE LATE MORNING AND EARLY AFTERNOON. HAINES INDEX........5 OR MODERATE. MIXING HEIGHT.......1200 FT AGL UNTIL 1300...THEN 7900 FT AGL. TRANSPORT WINDS.....NORTHWEST 22 TO 27 MPH UNTIL 1300...THEN 14 TO 19 MPH. SMOKE DISPERSAL.....AROUND 25600 UNTIL 1300...THEN AROUND 109900. CWR.................ZERO. TIME (CDT) 10 AM NOON 2 PM 4 PM 6 PM SKY (%).........24 23 23 20 17 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE TEMP............46 55 61 65 64 RH..............68 49 38 33 33 20 FT WIND......NW 11 NW 12 NW 12 W 10 W 7 20 FT WIND GUST.20 20 20 15 10 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT CLOUD) UNTIL 0500...THEN MOSTLY CLOUDY (55-65 PERCENT CLOUD). MIN TEMPERATURE.....43-48. MAX HUMIDITY........60-65 PERCENT. WIND (20 FT)........WEST WINDS AROUND 6 MPH UNTIL 2100...THEN SOUTHEAST 5 TO 13 MPH WITH GUSTS TO AROUND 20 MPH. MIXING HEIGHT.......300 FT AGL. TRANSPORT WINDS.....SOUTH 7 TO 12 MPH UNTIL 0100...THEN SOUTHEAST 23 TO 28 MPH. SMOKE DISPERSAL.....2000-5600. CWR.................ZERO. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........17 21 26 30 40 54 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............63 57 53 51 49 47 RH..............33 42 50 55 60 62 20 FT WIND......W 5 S 5 SE 6 SE 9 SE 10 SE 11 20 FT WIND GUST.10 10 15 15 20 .FRIDAY... MAX TEMPERATURE.....62-67. MIN HUMIDITY........42-47 PERCENT. WIND (20 FT)........SOUTH WINDS 9 TO 19 MPH WITH GUSTS TO AROUND 25 MPH UNTIL 1500...THEN NORTHWEST 7 TO 17 MPH WITH GUSTS TO AROUND 25 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM TEMP............46 51 57 61 63 63 RH..............65 56 50 46 45 46 20 FT WIND......SE 14 SE 16 S 15 S 10 W 10 NW 14 20 FT WIND GUST.20 25 25 15 15 20 $$ FORECASTER...MOHR REQUESTED BY...SHANE DEL GROSSO TYPE OF REQUEST...PRESCRIBED .TAG 20110428.COWAN.01/ABR