FNUS73 KDVN 181403
FWSDVN

SPOT FORECAST FOR OFFICE PRAIRIE...USFWS
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
903 AM CDT WED MAR 18 2009

FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MARCH 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
HIGH PRESSURE WILL CONTINUE TO OVERSPREAD THE AREA FOLLOWING A COLD FRONT
THAT DROPPED SOUTH THROUGH THE REGION LAST NIGHT. A WEAKER SECONDARY COLD
WILL DROP SOUTH INTO THE AREA TONIGHT. TODAY...A WEAK MID LEVEL SYSTEM
WILL PRODUCE SCATTERED VERY LIGHT RAIN SHOWERS ACROSS EASTERN IOWA FROM LATE
MORNING INTO EARLY AFTERNOON...OTHERWISE MOSTLY CLOUDY SKIES WILL PREVAIL.
WINDS WILL BE NORTH TO NORTHEAST FROM 10 TO 15 MPH. DRIER CONDITIONS WILL
FOLLOW TONIGHT AND THURSDAY.

.TODAY...

SKY/WEATHER.........PARTLY SUNNY. A 10 PERCENT CHANCE OF RAIN IN THE
                    MORNING AND A 16 PERCENT CHANCE IN THE AFTERNOON.
TEMPERATURE.........49 AT IGNITION...MAX 57.
RH..................63 PERCENT AT IGNITION...MIN 49 PERCENT.
EYE LEVEL WINDS.....WINDS NORTH 6 MPH AT IGNITION...RANGING
                    FROM 7 TO 10 MPH IN THE AFTERNOON.
WIND SHIFT..........NONE
CWR.................16 PERCENT.
LAL................. 1
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1200 FT AGL INCREASING TO 4000 FT AGL
                    IN THE AFTERNOON.
MIXING WINDS........NORTHEAST 10 TO 18 MPH.

TIME (CDT)      10 AM  NOON   2 PM   4 PM   6 PM
SKY (%).........MCLDY  MCLDY  MCLDY  MCLDY  MCLDY
WEATHER COV.....              SCTTRD SCTTRD SCTTRD
WEATHER TYPE....NONE   NONE   RNSHWR RNSHWR RNSHWR
TEMP............49     53     55     56     54
RH..............63     50     45     45     48
EYE LEVEL WIND..030/14 030/13 030/12 020/10 000/8
EYE LEVEL WIND..20     20     15     15     10
HAINES INDEX....3      3      3      3      3

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
TEMPERATURE.........MIN 34.
RH..................MAX 70 PERCENT.
EYE LEVEL WINDS.....NORTH WINDS 5 TO 8 MPH.
WIND SHIFT..........NONE
CWR.................10 PERCENT.
LAL.................1
HAINES INDEX........2
MIXING HEIGHT.......DECREASING TO 800 FEET AGL.
MIXING WINDS........NORTH 10 MPH.

.THURSDAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........MAX 54.
RH..................MINIMUM RH 40 PERCENT.
EYE LEVEL WINDS.....NORTH WINDS 5 TO 8 MPH.
WIND SHIFT..........NONE.
CWR.................0 PERCENT.
LAL.................1
HAINES INDEX........4.
MIXING HEIGHT.......INCREASING TO 4000 FT AGL.
MIXING WINDS........NORTHEAST 10 MPH...BECOMING NORTHWEST.

$$
FORECASTER...SHEETS
REQUESTED BY...ERIK ACKER
TYPE OF REQUEST...PRESCRIBED
.TAG 20090318.OFFIC.01/DVN