FNUS73 KDVN 241330
FWSDVN

SPOT FORECAST FOR WEST VALLEY VIEW SAND SAVANNA...JOHNSON COUNTY CONSERVATION BOARD
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
830 AM CDT FRI APR 24 2009

FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 24.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
SUNSHINE AND SOUTHERLY WINDS WILL BRING VERY WARM TEMPERATURES TO THE REGION
TODAY. A COLD FRONT EXTENDED FROM EASTERN MINNESOTA TO SOUTHEAST NEBRASKA
AND WILL PUSH INTO EASTERN IOWA ON SATURDAY...AND THEN STALL. SHOWERS AND
THUNDERSTORMS WILL BECOME LIKELY ON SATURDAY AND CONTINUE INTO EARLY
NEXT WEEK.


.TODAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........69 AT IGNITION...MAX 83.
RH..................63 PERCENT AT IGNITION...MIN 44 PERCENT.
EYE LEVEL WINDS.....WINDS SOUTH AT 14 MPH AT IGNITION...OTHERWISE
                    SOUTH WINDS 8 TO 16 MPH INCREASING TO 20 TO 22
                    MPH LATE IN THE MORNING.
WIND SHIFT..........NONE.
CWR.................10 PERCENT.
LAL.................1
HAINES INDEX........3 TO 5 OR VERY LOW TO MODERATE POTENTIAL FOR
                    LARGE PLUME DOMINATED FIRE GROWTH.
MIXING HEIGHT.......100-1900 FT AGL INCREASING TO 2700-4200 FT AGL
                    LATE IN THE MORNING.
MIXING WINDS........SOUTHWEST 8 TO 17 MPH INCREASING TO SOUTH 30 TO
                    33 MPH.

TIME (CDT)      10 AM  NOON   2 PM   4 PM   6 PM
SKY (%).........MCLEAR MCLEAR MCLEAR PCLDY  PCLDY
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE
TEMP............69     76     80     82     81
RH..............63     52     47     44     46
EYE LEVEL WIND..200/14 190/20 190/22 190/22 190/21
EYE LEVEL WIND..20     30     30     30     30
HAINES INDEX....5      5      5      4      4

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
                    SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
                    AFTER MIDNIGHT.
TEMPERATURE.........MIN 61.
RH..................MAX 81 PERCENT.
EYE LEVEL WINDS.....SOUTH WINDS 15 TO 21 MPH.
WIND SHIFT..........NONE.
CWR.................10 PERCENT INCREASING TO 20 PERCENT AFTER
                    MIDNIGHT.
LAL.................2
HAINES INDEX........3 TO 4 OR VERY LOW TO LOW POTENTIAL FOR LARGE
                    PLUME DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1400-3200 FT AGL DECREASING TO 500-900 FT AGL
                    IN THE LATE EVENING AND OVERNIGHT.
MIXING WINDS........SOUTHWEST 25 TO 33 MPH DECREASING TO 15 TO 23
                    MPH IN THE LATE EVENING AND OVERNIGHT.

.SATURDAY...

SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS AND THUNDERSTORMS
                    LIKELY.
TEMPERATURE.........MAX 72.
RH..................MIN 57 PERCENT.
EYE LEVEL WINDS.....WEST WINDS BECOMING NORTHEAST 10 TO 15 MPH.
WIND SHIFT..........WEST WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH
                    BECOMING NORTH TO NORTHEAST IN THE AFTERNOON.
CWR.................60 PERCENT.
LAL.................4
HAINES INDEX........2 TO 3 OR OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......800-2500 FT AGL.
MIXING WINDS........WEST 14 TO 15 MPH SHIFTING TO THE NORTHEAST 16
                    TO 17 MPH LATE IN THE MORNING.

$$
FORECASTER...HAASE
REQUESTED BY...DAVID WEHDE
TYPE OF REQUEST...PRESCRIBED
.TAG 20090424.WESTV.01/DVN