FNUS73 KOAX 140924 FWSOAX SPOT FORECAST FOR LOESS HILLS WMA...IOWA DNR NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 424 AM CDT TUE APR 14 2009 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 14. IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A RIDGE OF HIGH PRESSURE ACROSS THE REGION WILL SHIFT EAST TODAY ALLOWING LIGHT WESTERLY WINDS EARLY THIS MORNING NEAR IGNITION TIME... BUT SHIFTING TO THE EAST SOUTHEAST THROUGH THE DAY. IF THE WINDS REMAIN MORE NORTHEAST INTO THE AFTERNOON INSTEAD OF BECOMING SOUTHEAST...RELATIVE HUMIDITIES COULD BE LOWER DUE TO LOWER THAN EXPECTED DEWPOINTS BEING SENT INTO THE REGION. .TODAY... SKY/WEATHER.........SUNNY (10-20 PERCENT). MAX TEMPERATURE.....42 AT IGNITION...MAX 63. MIN HUMIDITY........59 PERCENT AT IGNITION...MIN 31 PERCENT. 20-FOOT WINDS.......WINDS WEST AT 5 MPH AT IGNITION...OTHERWISE LIGHT WINDS BECOMING NORTHWEST AROUND 5 MPH EARLY IN THE MORNING...THEN SHIFTING TO THE SOUTHEAST 5 TO 7 MPH LATE IN THE MORNING. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH AT IGNITION...MAX 5. MIXING HEIGHT.......300-1500 FT AGL INCREASING TO 4700-5300 FT AGL. TRANSPORT WINDS.....NORTHWEST 6 TO 8 MPH SHIFTING TO THE EAST 7 TO 9 MPH LATE IN THE MORNING. TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).........30 21 17 7 6 6 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............29 37 47 56 61 63 RH..............91 70 51 38 33 31 20 FT WIND......NW 3 NW 5 NW 5 E 5 E 6 E 7 20 FT WIND GUST.5 HAINES INDEX....4 5 5 5 5 5 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT). MIN TEMPERATURE.....MIN 36. MAX HUMIDITY........MAX 79 PERCENT. 20-FOOT WINDS.......SOUTHEAST WINDS 6 TO 8 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3100-4500 FT AGL DECREASING TO 300-1700 FT AGL EARLY IN THE EVENING. TRANSPORT WINDS.....SOUTHEAST 9 TO 14 MPH. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........3 5 7 9 13 18 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............61 52 47 44 40 38 RH..............34 44 55 62 71 73 20 FT WIND......SE 7 SE 8 SE 8 S 7 SE 7 SE 7 20 FT WIND GUST. 10 10 HAINES INDEX....5 5 5 5 5 5 .WEDNESDAY... SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). MAX TEMPERATURE.....MAX 66. MIN HUMIDITY........MIN 36 PERCENT. 20-FOOT WINDS.......SOUTHEAST WINDS 7 TO 15 MPH INCREASING TO 17 TO 24 MPH IN THE LATE MORNING AND AFTERNOON. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......300-1900 FT AGL INCREASING TO 2700-3800 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHEAST 13 TO 22 MPH INCREASING TO 24 TO 32 MPH IN THE LATE MORNING AND AFTERNOON. TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).........22 33 47 62 63 63 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............36 43 52 60 65 66 RH..............79 64 50 40 36 36 20 FT WIND......SE 8 SE 13 SE 17 SE 21 SE 24 SE 24 20 FT WIND GUST.10 15 25 30 30 30 HAINES INDEX....5 5 5 5 5 5 .FORECAST DAYS 3 THROUGH 5... .THURSDAY... MOSTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S. SOUTHEAST WINDS AROUND 18 MPH. .FRIDAY... CLOUDY WITH CHANCE OF SHOWERS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S. SOUTHEAST WINDS AROUND 18 MPH. .SATURDAY... CLOUDY WITH SHOWERS AND THUNDERSTORMS LIKELY. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 60S. EAST WINDS AROUND 12 MPH. $$ FORECASTER...NWS OMAHA/VALLEY REQUESTED BY...BRIAN HICKMAN TYPE OF REQUEST...PRESCRIBED .TAG 20090414.LOESS.01/OAX