Suppression Forecast
Issued by NWS Des Moines, IA

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000
FNUS73 KDMX 311400
FWSDMX

SPOT FORECAST FOR FINN POND...IOWA DNR
NATIONAL WEATHER SERVICE DES MOINES IA
900 AM CDT TUE MAR 31 2015

FORECAST IS BASED ON IGNITION TIME OF 0915 CDT ON MARCH 31.
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...

WEAK HIGH PRESSURE WILL BE IN PLACE ACROSS IOWA TODAY. WINDS WILL
BE LIGHT TODAY WITH SPEEDS GENERALLY AROUND 10 MPH OR LESS HOWEVER
WE STILL HAVE DRY FUELS AND A WARM AND DRY AIRMASS IN PLACE
ACROSS IOWA SO RELATIVE HUMIDITIES WILL DROP TO NEAR 25 PERCENT
FOR A COUPLE HOURS THIS AFTERNOON AND FIRE DANGER WILL STILL BE
HIGH TODAY AS A RESULT. CONDITIONS WILL BE BACK TO NEAR RED FLAG
CRITERIA ON WEDNESDAY.

.TODAY...

SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 72.
MIN HUMIDITY........26 PERCENT.
EYE LEVEL WINDS.....NORTHWEST WINDS 7 TO 9 MPH.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1400 FT AGL INCREASING TO 9100 FT AGL.
MIXING WINDS........NORTHWEST 6 TO 14 MPH INCREASING TO 13 TO 18
                    MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO GOOD (1300-44300 KNOT-FT) INCREASING TO
                    EXCELLENT TO EXCELLENT (83600-132300 KNOT-FT)
                    IN THE AFTERNOON.
WIND (20 FT)........NORTHWEST WINDS 7 TO 9 MPH.

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........2   4   7   8   8   7   6   7
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............54  61  65  68  70  72  72  71
RH..............54  44  37  32  29  27  26  27
20 FT WIND DIR..W   NW  NW  NW  NW  NW  NW  W
20 FT WIND SPD..8   8   9   9   9   9   8   7
20 FT WIND GUST.10  10  15  15  15  15  10  10
EYE LVL WND DIR.W   NW  NW  NW  NW  NW  NW  W
EYE LVL WND SPD.6   6   6   6   6   6   6   5
EYE LVL WND GST.10  10  15  15  15  15  10  10
MIX HGT (KFT)...1.4 3.6 5.8 7.9 8.3 8.7 9.1 7.8
MIXNG WIND DIR..NW  NW  NW  NW  NW  NW  NW  NW
MIXNG WIND SPD..12  14  17  18  18  17  15  13
HAINES INDEX....4   4   5   5   5   4   4   4

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....AROUND 47.
MAX HUMIDITY........68 PERCENT.
EYE LEVEL WINDS.....WEST WINDS AROUND 5 MPH EARLY IN THE EVENING
                    BECOMING LIGHT...THEN BECOMING SOUTH 5 TO 9 MPH
                    IN THE LATE EVENING AND OVERNIGHT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6600 FT AGL DECREASING TO 300 FT AGL.
MIXING WINDS........WEST 6 TO 9 MPH SHIFTING TO THE SOUTH 6 TO 7
                    MPH IN THE LATE EVENING AND OVERNIGHT.
SMOKE DISPERSAL.....POOR TO GOOD (1200-53300 KNOT-FT) DECREASING TO
                    POOR TO POOR (1200-1500 KNOT-FT) AFTER
                    MIDNIGHT.
WIND (20 FT)........WEST WINDS AROUND 5 MPH EARLY IN THE EVENING
                    BECOMING LIGHT...THEN BECOMING SOUTH 5 TO 9 MPH
                    IN THE LATE EVENING AND OVERNIGHT.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........8      10     11     10     11     15
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TSTM COV........
TEMP............69     58     50     47     47     48
RH..............30     47     61     68     68     68
20 FT WIND......W 5    SW 3   S 6    S 7    S 8    S 9
20 FT WIND GUST.       5                    10     10
EYE LEVEL WIND..W 4    SW 2   S 4    S 5    S 6    S 6
EYE LVL WND GST.       5                    10     10
MIX HGT (FT)....6600   3700   300    300    300    300
MIXNG WIND......W 9    W 6    S 6    S 6    S 6    S 7
HAINES INDEX....5      5      4      4      4      5

$$
FORECASTER...DONAVON
REQUESTED BY...DEAN NELSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20150331.FINNP.01/DMX


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