FNUS73 KDVN 181252
FWSDVN

SPOT FORECAST FOR LSA MOIST SOIL UNIT...US FISH & WILDLIFE
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
752 AM CDT WED APR 18 2012

FORECAST IS BASED ON IGNITION TIME OF 0930 CDT ON APRIL 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
AN AREA OF SHOWERS AND THUNDERSTORMS OVER CENTRAL IOWA THIS
MORNING IS EXPECTED TO WEAKEN AS IT MOVES INTO EASTERN IOWA
LATER THIS MORNING. MEANWHILE...SOUTH WINDS WILL INCREASE THIS
MORNING AHEAD OF AN APPROACHING COLD FRONT. THE FRONT IS
EXPECTED TO STALL AND PROVIDE A FOCUS FOR ADDITIONAL RAIN AND
THUNDERSTORM DEVELOPMENT THIS AFTERNOON INTO FRIDAY.

THE GRASSLAND FIRE DANGER INDEX -GFDI- DOES NOT ACCOUNT FOR
PRECIPITATION THAT OCCURS OR ANY SNOW ON THE GROUND. PLEASE
MAKE APPROPRIATE ADJUSTMENTS.


.TODAY...

SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). CHANCE OF SHOWERS
                    AND THUNDERSTORMS IN THE AFTERNOON.
TEMPERATURE.........61 AT IGNITION...MAX 74.
RH..................63 PERCENT AT IGNITION...MIN 44 PERCENT.
EYE LEVEL WINDS.....SOUTHWEST WINDS 10 TO 17 MPH.
WIND SHIFT..........NONE.
CWR.................10 PERCENT INCREASING TO 40 PERCENT IN THE
                    AFTERNOON.
LAL.................LOW.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......200-1600 FT AGL INCREASING TO 6600-8300 FT AGL.
TRANSPORT WINDS.....SOUTH 13 TO 22 MPH SHIFTING TO THE SOUTHWEST 22
                    TO 28 MPH IN THE LATE MORNING AND AFTERNOON.

TIME (CDT)      9 AM   11 AM  1 PM   3 PM   5 PM
SKY COVER.......PCLDY  MCLDY  MCLDY  MCLDY  MCLDY
WEATHER COV.....              CHANCE CHANCE CHANCE
WEATHER TYPE....NONE   NONE   TSTORM TSTORM TSTORM
TEMP............58     64     69     72     72
RH..............63     54     48     44     45
EYE LEVEL WIND..S 11   SW 11  SW 11  SW 12  SW 10
EYE LVL WND GST.20     25     25     25     20
MIX HGT (FT)....1600   4700   8100   7900   7300
TRANSPORT WIND..SW 22  SW 28  SW 28  SW 24  SW 22
HAINES INDEX....3      3      4      4      4

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF
                    SHOWERS AND THUNDERSTORMS.
TEMPERATURE.........MIN 54.
RH..................MAX 84 PERCENT.
EYE LEVEL WINDS.....SOUTH WINDS 5 TO 9 MPH.
WIND SHIFT..........NONE.
CWR.................30 PERCENT.
LAL.................LOW.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......6500 FT AGL DECREASING TO 200-2100 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 15 TO 23 MPH SHIFTING TO THE SOUTH 9
                    TO 12 MPH IN THE LATE EVENING AND OVERNIGHT.

.THURSDAY...

SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). SHOWERS AND
                    THUNDERSTORMS LIKELY.
TEMPERATURE.........MAX 68.
RH..................MIN 59 PERCENT.
EYE LEVEL WINDS.....SOUTH WINDS 6 TO 14 MPH.
WIND SHIFT..........NONE.
CWR.................60 PERCENT.
LAL.................LOW.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......300-2200 FT AGL INCREASING TO 2300 FT AGL LATE
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 9 TO 15 MPH INCREASING TO SOUTHWEST 20 TO
                    28 MPH IN THE LATE MORNING AND EARLY
                    AFTERNOON...THEN DECREASING TO 14 TO 17 MPH
                    LATE IN THE AFTERNOON SHIFTING TO THE NORTH
                    LATE IN THE AFTERNOON.

$$
FORECASTER...ERVIN
REQUESTED BY...ERIK ACKER
TYPE OF REQUEST...PRESCRIBED
.TAG 20120418.LSAMO.01/DVN