Suppression Forecast
Issued by NWS Des Moines, IA

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493
FNUS73 KDMX 031311
FWSDMX

SPOT FORECAST FOR 12 MILE WPA...USFWS
NATIONAL WEATHER SERVICE DES MOINES IA
811 AM CDT TUE MAY 3 2016

FORECAST IS BASED ON IGNITION TIME OF 1115 CDT ON MAY 03.
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...

LIGHT WINDS THIS MORNING WILL BECOME BREEZY FROM THE WEST TODAY. A
FEW GUSTS OVER 25 MPH ARE POSSIBLE THIS AFTERNOON. GOOD DRYING CONDITIONS
TODAY WITH THE WIND AND DRIER AIR WILL HELP LOWER RELATIVE HUMIDITY
VALUES TO 35 PERCENT.

.TODAY...

SKY/WEATHER.........SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....AROUND 69.
MIN HUMIDITY........36 PERCENT.
EYE LEVEL WINDS.....WEST WINDS 7 TO 16 MPH INCREASING TO 18 TO 21
                    MPH EARLY IN THE AFTERNOON.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......300 FT AGL INCREASING TO 7800 FT AGL.
MIXING WINDS........WEST 6 TO 13 MPH INCREASING TO 26 TO 28 MPH.
SMOKE DISPERSAL.....POOR TO FAIR (1300-19600 KNOT-FT) INCREASING TO
                    EXCELLENT TO EXCELLENT (130600-172700 KNOT-FT).
WIND (20 FT)........WEST WINDS 7 TO 16 MPH INCREASING TO 18 TO 21
                    MPH EARLY IN THE AFTERNOON.

TIME (CDT)      11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........13  22  26  28  33  35  40
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............61  63  64  65  66  68  69
RH..............51  46  45  41  39  38  36
20 FT WIND DIR..W   W   W   W   W   W   WNW
20 FT WIND SPD..13  15  16  18  20  21  21
20 FT WIND GUST.15  20  25  25  30  30  30
EYE LVL WND DIR.W   W   W   W   W   W   WNW
EYE LVL WND SPD.9   11  11  13  14  15  15
EYE LVL WND GST.15  20  25  25  30  30  30
MIX HGT (KFT)...7.0 7.4 7.8 7.7 7.6 7.5 7.2
MIXNG WIND DIR..W   W   W   W   WNW WNW WNW
MIXNG WIND SPD..18  21  22  24  25  26  28
HAINES INDEX....4   4   4   4   4   4   4

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (50-60 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (20-30 PERCENT) THEN BECOMING
                    CLEAR (0-10 PERCENT). ISOLATED SHOWERS AND
                    THUNDERSTORMS EARLY IN THE EVENING.
MIN TEMPERATURE.....AROUND 43.
MAX HUMIDITY........73 PERCENT.
EYE LEVEL WINDS.....NORTH WINDS 12 TO 21 MPH.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......6900 FT AGL DECREASING TO 300 FT AGL.
MIXING WINDS........NORTHWEST 21 TO 28 MPH BECOMING NORTH 9 TO 17
                    MPH LATE IN THE EVENING.
SMOKE DISPERSAL.....EXCELLENT TO EXCELLENT (101400-168400 KNOT-FT)
                    DECREASING TO POOR TO GOOD (2200-48400 KNOT-FT)
                    IN THE LATE EVENING AND OVERNIGHT.
WIND (20 FT)........NORTH WINDS 12 TO 21 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE
                    EVENING.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........48     43     33     11     4      4
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TSTM COV........
TEMP............68     64     57     52     50     47
RH..............37     48     55     59     58     65
20 FT WIND......WNW 21 WNW 16 NNW 14 NNW 14 N 13   NNW 12
20 FT WIND GUST.30     25     20     20     15     15
EYE LEVEL WIND..WNW 15 WNW 11 NNW 10 NNW 10 N 9    NNW 9
EYE LVL WND GST.30     25     20     20     15     15
MIX HGT (FT)....6900   4500   300    300    300    300
MIXNG WIND......WNW 28 WNW 26 NNW 21 NNW 15 NNW 12 NNW 10
HAINES INDEX....4      4      4      4      4      4

$$
FORECASTER...VACHALEK
REQUESTED BY...CHAD LORETH
TYPE OF REQUEST...PRESCRIBED
.TAG 20160503.12MIL.01/DMX



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