Suppression Forecast
Issued by NWS Des Moines, IA

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000
FNUS73 KDMX 171245
FWSDMX

SPOT FORECAST FOR BLACKMUN PRAIRIE...IOWA DNR
NATIONAL WEATHER SERVICE DES MOINES IA
745 AM CDT THU APR 17 2014

FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON APRIL 17.
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...
LOW STRATUS WILL STICK AROUND THROUGH MUCH OF THE MORNING HOURS
TODAY AND THE NORTHWEST WINDS ARE FORECAST TO WEAKEN BY AROUND
MIDDAY INTO THE EARLY AFTERNOON. OTHERWISE...DRY CONDITIONS
TODAY WITH SOME SUNSHINE EXPECTED BY THE LATE AFTERNOON.

.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING
                    MOSTLY SUNNY (40-50 PERCENT).
MAX TEMPERATURE.....AROUND 50.
MIN HUMIDITY........50 PERCENT.
EYE LEVEL WINDS.....NORTHWEST WINDS 12 TO 21 MPH DECREASING TO 9 TO
                    10 MPH LATE IN THE AFTERNOON.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3700 FT AGL INCREASING TO 3900 FT AGL LATE IN
                    THE AFTERNOON.
MIXING WINDS........NORTHWEST 14 TO 23 MPH DECREASING TO 9 TO 12
                    MPH EARLY IN THE AFTERNOON.
SMOKE DISPERSAL.....GOOD TO GOOD (30800-38600 KNOT-FT).
WIND (20 FT)........NORTHWEST WINDS 12 TO 21 MPH DECREASING TO 9 TO
                    10 MPH LATE IN THE AFTERNOON.

TIME (CDT)      12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........56  50  49  46  44  41
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............42  45  46  48  49  49
RH..............62  58  58  54  52  52
20 FT WIND DIR..NW  NW  NW  NW  NW  NW
20 FT WIND SPD..14  13  12  12  10  9
20 FT WIND GUST.20  15  15  15  15  10
EYE LVL WND DIR.NW  NW  NW  NW  NW  NW
EYE LVL WND SPD.10  9   9   9   7   6
EYE LVL WND GST.20  15  15  15  15  10
MIX HGT (KFT)...2.9 3.1 3.4 3.7 3.9 3.9
MIXNG WIND DIR..NW  NW  NW  NW  NW  NW
MIXNG WIND SPD..15  14  12  10  9   9
HAINES INDEX....5   5   5   5   5   5

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
MIN TEMPERATURE.....AROUND 30.
MAX HUMIDITY........96 PERCENT.
EYE LEVEL WINDS.....EAST WINDS 5 TO 9 MPH.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3900 FT AGL DECREASING TO 1500 FT AGL IN THE
                    LATE EVENING AND OVERNIGHT.
MIXING WINDS........NORTHEAST 5 TO 9 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (1200-31500 KNOT-FT).
WIND (20 FT)........EAST WINDS 5 TO 9 MPH.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........36     34     38     24     24     40
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TSTM COV........
TEMP............49     45     39     36     34     32
RH..............50     58     73     82     85     85
20 FT WIND......N 9    N 7    NE 6   NE 5   NE 5   E 5
20 FT WIND GUST.10
EYE LEVEL WIND..N 6    N 5    NE 4   NE 4   NE 4   E 4
EYE LVL WND GST.10
MIX HGT (FT)....3900   2700   300    300    300    300
MIXNG WIND......NW 9   N 8    N 6    N 6    N 6    NE 5
HAINES INDEX....5      5      5      5      5      5

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
MAX TEMPERATURE.....AROUND 59.
MIN HUMIDITY........40 PERCENT.
EYE LEVEL WINDS.....SOUTHEAST WINDS 5 TO 13 MPH.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2000 FT AGL INCREASING TO 4800 FT AGL.
MIXING WINDS........SOUTHEAST 6 TO 14 MPH INCREASING TO AROUND 17
                    MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO EXCELLENT (1600-65900 KNOT-FT).
WIND (20 FT)........SOUTHEAST WINDS 5 TO 13 MPH.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
SKY (%).........48        46        45        41
WEATHER COV.....
WEATHER TYPE....NONE      NONE      NONE      NONE
TSTM COV........
TEMP............30        40        52        58
RH..............96        73        52        42
20 FT WIND......E 5       E 8G10    SE 9G10   SE 12
EYE LEVEL WIND..E 4G5     E 6G10    SE 6G10   SE 9G10
MIX HGT (FT)....400       1500      3300      4500
MIXNG WIND......NE 6      E 6       SE 6      SE 12
HAINES INDEX....5         5         5         4

$$
FORECASTER...AWB
REQUESTED BY...JUSTIN CLARK
TYPE OF REQUEST...PRESCRIBED
.TAG 20140417.BLACK.01/DMX



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