FNUS73 KOAX 220948 FWSOAX SPOT FORECAST FOR HATCHET HILL RX...BIA-WINNEBAGO AGENCY NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 448 AM CDT WED APR 22 2009 IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... AS AN UPPER LEVEL RIDGE OF HIGH PRESSURE DEVELOPS ACROSS THE REGION TODAY...SKIES WILL BE MOSTLY SUNNY. LIGHT AND VARIABLE WINDS THIS MORNING WILL TURN MORE TO THE SOUTH THIS AFTERNOON AND INCREASE INTO THE 5 TO 10 MPH RANGE BY MID AFTERNOON. DESPITE SOME INCREASE IN SOUTHERLY WINDS TODAY...MOISTURE RETURN WILL STILL BE VERY LIMITED. RELATIVE HUMIDITY VALUES THIS MORNING WILL QUICKLY DROP AS EVEN LIMITED MIXING SHOULD ALLOW FOR SOME VERY DRY AIR JUST OFF THE SURFACE TO MIX DOWN. RELATIVE HUMIDITY VALUES BY LATE MORNING AND INTO THE EARLY AFTERNOON WILL DROP INTO THE MID 20S. THE LOW HUMIDITY WILL CREATE AN INCREASED FIRE DANGER...BUT WITH GENERALLY LIGHT WINDS...THIS WILL TEND TO LIMIT THE GROWTH POTENTIAL. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). MAX TEMPERATURE.....AROUND 77. MIN HUMIDITY........24 PERCENT. 20-FOOT WINDS.......LIGHT WINDS BECOMING SOUTH 5 TO 13 MPH LATE IN THE MORNING. HAINES INDEX........5 TO 6 OR OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH TO OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......300-1600 FT AGL INCREASING TO 3000-4800 FT AGL LATE IN THE MORNING...THEN INCREASING TO 3400-5000 FT AGL LATE IN THE AFTERNOON DECREASING TO 1800 FT AGL LATE IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHWEST 2 TO 10 MPH SHIFTING TO THE SOUTH AROUND 15 MPH LATE IN THE AFTERNOON. TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).........41 39 35 33 27 19 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............40 49 61 70 75 77 RH..............79 54 38 31 26 25 20 FT WIND......NW 3 W 3 S 3 SE 5 S 7 S 10 20 FT WIND GUST.5 5 5 10 15 HAINES INDEX....5 5 5 6 5 5 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT). MIN TEMPERATURE.....AROUND 52. MAX HUMIDITY........86 PERCENT. 20-FOOT WINDS.......SOUTHEAST WINDS 12 TO 14 MPH. HAINES INDEX........4 TO 5 OR OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH TO OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......300 FT AGL. TRANSPORT WINDS.....SOUTH 18 TO 26 MPH SHIFTING TO THE SOUTHEAST 21 TO 28 MPH IN THE LATE EVENING AND OVERNIGHT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........14 22 34 43 43 44 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............75 67 62 59 56 53 RH..............29 40 50 58 68 79 20 FT WIND......S 14 S 14 S 14 S 14 S 13 S 12 20 FT WIND GUST.20 20 20 20 15 15 HAINES INDEX....5 5 5 4 4 4 .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). MAX TEMPERATURE.....AROUND 84. MIN HUMIDITY........32 PERCENT. 20-FOOT WINDS.......SOUTH WINDS 12 TO 20 MPH INCREASING TO 21 TO 23 MPH LATE IN THE MORNING. HAINES INDEX........4 TO 5 OR OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH TO OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......300-2200 FT AGL INCREASING TO 1400-3300 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTH 22 TO 30 MPH INCREASING TO 28 TO 33 MPH IN THE LATE MORNING AND AFTERNOON. TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).........44 35 24 15 16 18 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............52 60 70 78 83 84 RH..............86 69 51 40 35 32 20 FT WIND......SE 12 S 15 S 20 S 23 S 23 S 22 20 FT WIND GUST.15 20 30 30 30 30 HAINES INDEX....4 4 4 5 5 5 $$ FORECASTER...NWS OMAHA/VALLEY REQUESTED BY...DUWAYNE TRAVERSIE TYPE OF REQUEST...PRESCRIBED .TAG 20090421.HATCH.01/OAX