Suppression Forecast
Issued by NWS Des Moines, IA

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000
FNUS73 KDMX 210901
FWSDMX

SPOT FORECAST FOR ICCC BURN...IOWA DNR FIRE
NATIONAL WEATHER SERVICE DES MOINES IA
401 AM CDT SAT MAR 21 2015

FORECAST IS BASED ON IGNITION TIME OF 1300 CDT ON MARCH 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

AN INITIAL OBSERVATION AT IGNITION AND A MID BURN OBSERVATION ARE REQUIRED...
PLEASE RELAY THEM TO THE NATIONAL WEATHER SERVICE FOR EACH PRESCRIBED BURN.

.DISCUSSION...
WINDS WILL TURN THROUGH NORTH THIS MORNING TO NEARLY EAST LATER
IN THE DAY AND STEADILY DIMINISH IN SPEED. RELATIVE HUMIDITY WILL
FALL RAPIDLY IN THE LATE MORNING...BOTTOMING OUT AROUND 30 PERCENT
IN THE AFTERNOON.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
TEMPERATURE.........47 AT IGNITION...MAX 52.
RH..................40 PERCENT AT IGNITION...MIN 32 PERCENT.
EYE LEVEL WINDS.....EAST WINDS 8 TO 12 MPH.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2800 FT AGL INCREASING TO 3200 FT AGL IN THE
                    AFTERNOON.
MIXING WINDS........EAST 6 TO 14 MPH.
SMOKE DISPERSAL.....FAIR TO FAIR (14000-25400 KNOT-FT).
WIND (20 FT)........WINDS NORTHEAST AT 8 MPH AT
                    IGNITION...OTHERWISE EAST WINDS 8 TO 12 MPH.

TIME (CDT)      1PM 2PM 3PM 4PM 5PM
SKY (%).........20  20  19  19  20
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............47  50  51  52  52
RH..............40  34  33  32  32
20 FT WIND DIR..NE  NE  E   E   E
20 FT WIND SPD..8   8   8   8   8
20 FT WIND GUST.10  10  10  10  10
EYE LVL WND DIR.NE  NE  E   E   E
EYE LVL WND SPD.6   6   6   6   6
EYE LVL WND GST.10  10  10  10  10
MIX HGT (KFT)...3.1 3.2 3.2 3.2 3.0
MIXNG WIND DIR..NE  NE  E   E   E
MIXNG WIND SPD..6   7   8   9   9
HAINES INDEX....5   5   5   5   5

$$
FORECASTER...LEE
REQUESTED BY...KARL HARRIS
TYPE OF REQUEST...PRESCRIBED
.TAG 20150321.ICCCB.01/DMX


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