FNUS73 KDVN 041241 FWSDVN SPOT FORECAST FOR SCHOTTS...IDNR NATIONAL WEATHER SERVICE QUAD CITIES IA IL 741 AM CDT SAT APR 4 2009 FORECAST IS BASED ON IGNITION TIME OF 900 CDT ON APRIL 4. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A LOW PRESSURE SYSTEM OVER SOUTHEAST COLORADO EARLY THIS MORNING WILL I INTENSIFY AND MOVE EAST TO NORTHEAST ACROSS KANSAS...MISSOURI AND ILLINOIS THIS AFTERNOON THROUGH SUNDAY. THIS WILL SPREAD SHOWERS AND THUNDERSTORMS ACROSS EASTERN IOWA THIS EVENING...CHANGING TO A WINTRY MIX OF RAIN...SLEET AND SNOW OVERNIGHT INTO SUNDAY. A WINTER STORM WATCH IS IN EFFECT FOR ROUGHLY THE AREA NORTH OF HIGHWAY 30 LATE TONIGHT THROUGH MONDAY MORNING. SIGNIFICANT ACCUMULATIONS OF SLEET AND SNOW ARE POSSIBLE IN THIS WATCH AREA. THE TIGHTENING SURFACE PRESSURE GRADIENT AHEAD OF THE LOW WILL RESULT IN EAST WINDS STRENGTHENING TO 15 TO 25 MPH THIS AFTERNOON...INCREASING TO 20 TO 30 MPH OVERNIGHT AND BECOMING NORTH ON SUNDAY. .TODAY... SKY/WEATHER.........PARTLY SUNNY. TEMPERATURE.........39 AT IGNITION...AFTERNOON MAXIMUM 54. RH..................50 PERCENT AT IGNITION...AFTERNOON MIN 37 PERCENT. EYE LEVEL WINDS.....WINDS EAST AT 7 MPH AT IGNITION...INCREASING TO 13 TO 17 MPH IN THE AFTERNOON. WIND SHIFT..........NONE. CWR.................10 PERCENT. LAL.................1 HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......300 FT AGL INCREASING TO 4500 FT AGL IN THE AFTERNOON. MIXING WINDS........EAST 10 TO 15 MPH INCREASING TO 30 TO 35 MPH. TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).........MCLDY MCLDY MCLDY MCLDY MCLDY MCLDY WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............30 37 45 51 54 54 RH..............83 64 49 41 38 40 EYE LEVEL WIND..080/5 100/8 100/10 100/12 090/15 090/18 EYE LEVEL WIND..10 15 20 20 30 30 HAINES INDEX....2 2 2 2 2 2 .TONIGHT... SKY/WEATHER.........CLOUDY. SHOWERS LIKELY AND ISOLATED THUNDERSTORMS IN THE EVENING...SHOWERS AND SCATTERED THUNDERSTORMS WITH SLEET POSSIBLE AFTER MIDNIGHT. TEMPERATURE.........MINIMUM 35. RH..................MAXIMUM 89 PERCENT. EYE LEVEL WINDS.....EAST WINDS 17 TO 21 MPH. WIND SHIFT..........NONE. CWR.................100 PERCENT. LAL.................3 HAINES INDEX........2 TO 3 OR OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1400-2000 FT AGL. MIXING WINDS........EAST 25 TO 35 MPH INCREASING TO AROUND 40 MPH EARLY SUNDAY MORNING. .SUNDAY... SKY/WEATHER.........CLOUDY. A MIX OF RAIN...SLEET AND SNOW...CHANGING TO SNOW IN THE AFTERNOON. TEMPERATURE.........MAXIMUM 35. RH..................MINIMUM 79 PERCENT. EYE LEVEL WINDS.....NORTHEAST WINDS 17 TO 23 MPH. WIND SHIFT..........NORTHEAST WIND BACKING TO NORTH IN THE AFTERNOON. CWR.................100 PERCENT. LAL.................1 HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2500-3000 FT AGL. MIXING WINDS........NORTH 35 TO 40 MPH. $$ FORECASTER...SHEETS REQUESTED BY...TOM SMITH TYPE OF REQUEST...PRESCRIBED .TAG 20090404.SCHOT.01/DVN