FNUS73 KDVN 171048
FWSDVN

SPOT FORECAST FOR BACKBONE SIX PINES BURN...IOWA DNR FIRE PROGRAM
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
548 AM CDT FRI APR 17 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON APRIL 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
THE AREA WILL BE IN BETWEEN HIGH PRESSURE ACROSS THE SOUTHERN GREAT LAKES
AND A DEVELOPING STORM SYSTEM OVER THE SOUTHWEST PLAINS TODAY. THIS WILL
MAKE FOR SOUTHEAST WINDS OF 5 TO 15 MPH...MOSTLY SUNNY SKIES AND MILD
TEMPERATURES THROUGH FRIDAY EVENING. A LARGE SLOW MOVING STORM SYSTEM WILL
BRING THE CHANCE OF RAIN BY LATE SATURDAY.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
TEMPERATURE.........59 AT IGNITION...MAX 71.
RH..................44 PERCENT AT IGNITION...MIN 35 PERCENT.
EYE LEVEL WINDS.....WINDS SOUTH AT 8 MPH AT IGNITION...OTHERWISE
                    SOUTHEAST WINDS 5 TO 10 MPH.
WIND SHIFT..........FLUCTUATIONS FROM SOUTH TO SOUTHEAST LATE MORNING.
CWR.................0 PERCENT.
LAL.................1
HAINES INDEX........4 TO 5 OR LOW TO MODERATE POTENTIAL FOR LARGE
                    PLUME DOMINATED FIRE GROWTH.
MIXING HEIGHT.......800 FT AGL INCREASING TO 5200 FT AGL.
MIXING WINDS........SOUTHEAST 8 TO 16 MPH.

TIME (CDT)      11 AM  1 PM   3 PM   5 PM
SKY (%).........MCLEAR PCLDY  PCLDY  PCLDY
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE
TEMP............59     65     69     69
RH..............44     38     36     36
EYE LEVEL WIND..160/8  170/9  160/8  150/7
EYE LEVEL GUST..10     11     10     10
HAINES INDEX....4      4      4      4

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY LATE.
TEMPERATURE.........MIN 46.
RH..................MAX 77 PERCENT.
EYE LEVEL WINDS.....EAST WINDS 4 TO 7 MPH.
WIND SHIFT..........SOUTHEAST BECOMING EAST.
CWR.................0 PERCENT.
LAL.................1
HAINES INDEX........4 TO 5 OR LOW TO MODERATE POTENTIAL FOR LARGE
                    PLUME DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4000 FT AGL DECREASING TO 600 FT AGL
                    EARLY IN THE EVENING.
MIXING WINDS........EAST 3 TO 9 MPH.

.SATURDAY...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE
                    AFTERNOON.
TEMPERATURE.........MAX 70.
RH..................MIN 43 PERCENT.
EYE LEVEL WINDS.....SOUTHEAST WINDS 5 TO 10 MPH.
CWR.................10 PERCENT INCREASING TO 40 PERCENT IN THE
                    AFTERNOON.
LAL.................2
HAINES INDEX........2 TO 4 OR VERY LOW TO LOW POTENTIAL FOR LARGE
                    PLUME DOMINATED FIRE GROWTH.
MIXING HEIGHT.......800 FT AGL INCREASING TO 7000 FT AGL.
MIXING WINDS........EAST 7 MPH SHIFTING TO THE SOUTHEAST 14 MPH
                    LATE IN THE AFTERNOON.

$$
FORECASTER...JDH
REQUESTED BY...RYAN SCHLATER
TYPE OF REQUEST...PRESCRIBED
.TAG 20090417.BACKB.01/DVN