Suppression Forecast
Issued by NWS Des Moines, IA

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000
FNUS73 KDMX 162228
FWSDMX

SPOT FORECAST FOR N  MIDDLE UNIT...USFWS
NATIONAL WEATHER SERVICE DES MOINES IA
528 PM CDT WED APR 16 2014

FORECAST IS BASED ON IGNITION TIME OF 1000 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.

...RED FLAG WARNING IN EFFECT UNTIL 6 PM CDT THIS EVENING...
...WIND ADVISORY IN EFFECT UNTIL 6 PM CDT THIS EVENING...

.DISCUSSION...

NORTHWEST WINDS OF AROUND 15 MPH WITH INTERMITTENT GUSTS ARE
FORECAST THURSDAY MORNING...DIMINISHING TO AROUND 10 MPH BY
THE AFTERNOON. RELATIVE HUMIDITY WILL DECREASE AFTER SUNRISE
THURSDAY...BOTTOMING OUT IN THE 30S AND 40S IN THE AFTERNOON.

.THURSDAY...

SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT).
MAX TEMPERATURE.....AROUND 54.
MIN HUMIDITY........40 PERCENT.
EYE LEVEL WINDS.....NORTHWEST WINDS 6 TO 13 MPH.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3900 FT AGL INCREASING TO 4200 FT AGL LATE IN
                    THE AFTERNOON.
MIXING WINDS........NORTHWEST 12 TO 20 MPH DECREASING TO AROUND 10
                    MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....GOOD TO GOOD (32100-39400 KNOT-FT).
WIND (20 FT)........NORTHWEST WINDS 6 TO 13 MPH.

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........50  42  35  31  31  30  29  28
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............40  42  45  48  51  53  54  54
RH..............64  62  55  51  46  41  40  40
20 FT WIND DIR..NW  NW  NW  NW  NW  NW  NW  NW
20 FT WIND SPD..12  10  10  9   8   8   7   6
20 FT WIND GUST.15  15  15  10  10  10
EYE LVL WND DIR.NW  NW  NW  NW  NW  NW  NW  NW
EYE LVL WND SPD.9   7   7   6   6   6   5   4
EYE LVL WND GST.15  15  15  10  10  10
MIX HGT (KFT)...2.6 2.9 3.1 3.4 3.6 3.9 4.2 4.2
MIXNG WIND DIR..NW  NW  NW  NW  NW  NW  NW  NW
MIXNG WIND SPD..17  16  14  13  12  10  10  10
HAINES INDEX....4   4   5   5   5   5   5   5

.THURSDAY NIGHT...

SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT).
MIN TEMPERATURE.....AROUND 33.
MAX HUMIDITY........89 PERCENT.
EYE LEVEL WINDS.....NORTH WINDS 5 TO 6 MPH EARLY IN THE EVENING
                    BECOMING LIGHT...THEN BECOMING NORTHEAST AROUND
                    5 MPH AFTER MIDNIGHT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4200 FT AGL DECREASING TO 1800 FT AGL IN THE
                    LATE EVENING AND OVERNIGHT.
MIXING WINDS........NORTHEAST 6 TO 9 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (1300-35200 KNOT-FT).
WIND (20 FT)........NORTH WINDS 5 TO 6 MPH EARLY IN THE EVENING
                    BECOMING LIGHT...THEN BECOMING NORTHEAST AROUND
                    5 MPH AFTER MIDNIGHT.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........27     25     23     20     21     30
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TSTM COV........
TEMP............53     50     45     41     38     35
RH..............43     48     60     70     76     82
20 FT WIND......N 6    N 3    N 3    NE 5   NE 5   NE 5
20 FT WIND GUST.       5      5
EYE LEVEL WIND..N 4    N 2    N 2    NE 4   NE 4   NE 4
EYE LVL WND GST.       5      5
MIX HGT (FT)....4200   3000   600    400    300    300
MIXNG WIND......NW 9   N 8    N 6    NE 7   NE 7   NE 6
HAINES INDEX....5      5      5      5      5      5

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).
MAX TEMPERATURE.....AROUND 61.
MIN HUMIDITY........41 PERCENT.
EYE LEVEL WINDS.....SOUTHEAST WINDS 5 TO 9 MPH.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2000 FT AGL INCREASING TO 5100 FT AGL.
MIXING WINDS........SOUTH 6 TO 14 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (2200-57800 KNOT-FT).
WIND (20 FT)........SOUTHEAST WINDS 5 TO 9 MPH.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
SKY (%).........39        43        46        42
WEATHER COV.....
WEATHER TYPE....NONE      NONE      NONE      NONE
TSTM COV........
TEMP............33        43        54        59
RH..............89        67        50        42
20 FT WIND......E 5       E 6       SE 8G10   SE 9G10
EYE LEVEL WIND..E 4G5     E 4G5     SE 6G10   SE 6G10
MIX HGT (FT)....500       2000      3700      4800
MIXNG WIND......E 6       E 7       SE 7      S 9
HAINES INDEX....5         4         4         4

$$
FORECASTER...BEERENDS
REQUESTED BY...JIM KRIZMAN
TYPE OF REQUEST...PRESCRIBED
.TAG 20140417.NMIDD.01/DMX



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