FNUS73 KDMX 031326 FWSDMX SPOT FORECAST FOR SAC CITY WETLAND COMPLEX...IOWA DNR-USFWS NATIONAL WEATHER SERVICE DES MOINES IA 826 AM CDT TUE MAY 3 2011 FORECAST IS BASED ON IGNITION TIME OF 1030 CDT ON MAY 03. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. PLEASE REMEMBER TO SUBMIT A MID BURN OBSERVATION TO THE NATIONAL WEATHER SERVICE FOR EACH PRESCRIBED BURN. .DISCUSSION... HIGH PRESSURE WILL CROSS IOWA TODAY RESULTING IS LOWER WIND SPEEDS THAN PREVIOUS FEW DAYS. MIXING LEVELS WILL REMAIN FAIRLY HIGH HOWEVER...ALONG WITH LOW HUMIDITIES DURING THE AFTERNOON. MINIMUM RELATIVE HUMIDITY WILL BE LESS THAN 30 PERCENT. .TODAY... SKY/WEATHER.........SUNNY (5-15 PERCENT). MAX TEMPERATURE.....AROUND 61. MIN HUMIDITY........17 PERCENT. EYE LEVEL WINDS.....NORTH WINDS 5 TO 8 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1700 FT AGL INCREASING TO 8300 FT AGL. MIXING WINDS........NORTH 5 TO 14 MPH. SMOKE DISPERSAL.....MARGINAL (29700 KNOT-FT) INCREASING TO GOOD (71300 KNOT-FT) IN THE LATE MORNING AND AFTERNOON. WIND (20 FT)........NORTH WINDS 5 TO 8 MPH. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........7 9 12 15 11 7 6 5 4 WEATHER COV..... WEATHER TYPE.... TEMP............44 47 51 55 57 59 60 59 58 RH..............41 35 28 22 20 18 17 19 21 20 FT WIND DIR..N N N N N N N N N 20 FT WIND SPD..7 7 8 8 8 8 7 7 6 20 FT WIND GUST. 10 10 10 10 EYE LVL WND DIR.N N N N N N N N N EYE LVL WND SPD.5 5 6 6 6 6 5 5 4 EYE LVL WND GST. 10 10 10 10 5 MIX HGT (KFT)...4.5 5.4 6.3 7.1 7.5 7.9 8.3 7.6 6.9 MIXNG WIND DIR..N N N N N N N N N MIXNG WIND SPD..14 14 13 12 10 10 9 9 9 HAINES INDEX....5 5 4 4 4 4 4 4 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT). MIN TEMPERATURE.....AROUND 38. MAX HUMIDITY........64 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 5 TO 9 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......6200 FT AGL DECREASING TO 1100 FT AGL. MIXING WINDS........SOUTHEAST 5 TO 9 MPH. SMOKE DISPERSAL.....FAIR (49700 KNOT-FT). WIND (20 FT)........SOUTH WINDS 5 TO 9 MPH. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........4 15 13 0 17 24 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............57 51 48 45 42 41 RH..............22 32 40 51 57 62 20 FT WIND......N 5 NE 5 E 6 SE 6 S 7 S 8 20 FT WIND GUST. 10 EYE LEVEL WIND..N 4 NE 4 E 4 SE 4 S 5 S 6 EYE LEVEL WIND..5 5 5 5 10 MIX HGT (FT)....6200 3100 1100 300 300 300 MIXNG WIND......N 9 NE 6 E 5 E 6 SE 7 SE 7 HAINES INDEX....4 4 4 5 5 5 .WEDNESDAY... SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT) THEN BECOMING MOSTLY CLOUDY (65-75 PERCENT). MAX TEMPERATURE.....AROUND 67. MIN HUMIDITY........31 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 8 TO 17 MPH INCREASING TO 15 TO 20 MPH IN THE AFTERNOON. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2100 FT AGL INCREASING TO 4600 FT AGL IN THE LATE MORNING AND AFTERNOON. MIXING WINDS........SOUTHEAST 8 TO 13 MPH INCREASING TO AROUND 28 MPH. SMOKE DISPERSAL.....MARGINAL (33900 KNOT-FT) INCREASING TO EXCELLENT (96900 KNOT-FT) IN THE LATE MORNING AND AFTERNOON. WIND (20 FT)........SOUTH WINDS 8 TO 17 MPH INCREASING TO 15 TO 20 MPH IN THE AFTERNOON. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........23 42 52 64 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............40 53 62 66 RH..............64 43 33 32 20 FT WIND......SE 8G15 S 15G20 S 20G25 S 17G25 EYE LEVEL WIND..SE 6G15 S 11G20 S 14G25 S 12G25 MIX HGT (FT)....300 3100 4600 4600 MIXNG WIND......SE 8 SE 23 SE 24 SE 24 HAINES INDEX....4 4 5 4 $$ FORECASTER...SMALL REQUESTED BY...PETE HILDRETH TYPE OF REQUEST...PRESCRIBED .TAG 20110503.SACCI.03/DMX