Suppression Forecast
Issued by NWS Des Moines, IA

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794
FNUS73 KDMX 181317
FWSDMX

SPOT FORECAST FOR WEST FORK  SOUTH...IOWA DNR
NATIONAL WEATHER SERVICE DES MOINES IA
817 AM CDT WED MAY 18 2016

FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MAY 18.
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...

HAVE DEWPOINTS FALLING SOME THIS AFTERNOON...AND COULD END UP
A BIT LOWER THAN CURRENTLY IN THE FORECAST WITH DAYTIME MIXING
OF DRY AIR TO THE SURFACE.

.TODAY...

SKY/WEATHER.........SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....AROUND 68.
MIN HUMIDITY........31 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING NORTHEAST AROUND 5 MPH
                    EARLY IN THE MORNING...THEN BECOMING LIGHT
                    EARLY IN THE MORNING BECOMING SOUTHEAST 5 TO 6
                    MPH LATE IN THE MORNING BECOMING LIGHT BECOMING
                    SOUTHEAST AROUND 5 MPH LATE IN THE AFTERNOON.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......300 FT AGL INCREASING TO 8300 FT AGL.
MIXING WINDS........EAST 1 TO 3 MPH SHIFTING TO THE SOUTHWEST 1 TO
                    2 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO FAIR (700-22100 KNOT-FT).
WIND (20 FT)........LIGHT WINDS BECOMING NORTHEAST AROUND 5 MPH
                    EARLY IN THE MORNING...THEN BECOMING LIGHT
                    EARLY IN THE MORNING BECOMING SOUTHEAST 5 TO 6
                    MPH LATE IN THE MORNING BECOMING LIGHT BECOMING
                    SOUTHEAST AROUND 5 MPH LATE IN THE AFTERNOON.

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........5   5   15  25  25  24  32  33
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............56  61  63  64  65  66  67  67
RH..............51  41  36  32  31  30  30  29
20 FT WIND DIR..ESE SE  ESE ESE ESE ESE ESE SE
20 FT WIND SPD..6   5   3   3   3   3   3   5
20 FT WIND GUST.        5   5   5   5   5
EYE LVL WND DIR.ESE SE  ESE ESE ESE ESE ESE SE
EYE LVL WND SPD.4   4   2   2   2   2   2   4
EYE LVL WND GST.        5   5   5   5   5
MIX HGT (KFT)...7.4 7.6 7.8 8.1 8.1 8.2 8.3 8.2
MIXNG WIND DIR..NNE NNE ENE E   ESE S   SW  SSW
MIXNG WIND SPD..3   2   2   1   1   1   1   2
HAINES INDEX....4   4   5   5   5   5   5   5

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
MIN TEMPERATURE.....AROUND 46.
MAX HUMIDITY........79 PERCENT.
EYE LEVEL WINDS.....SOUTH WINDS 5 TO 7 MPH.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......8100 FT AGL DECREASING TO 300 FT AGL.
MIXING WINDS........SOUTH 2 TO 6 MPH.
SMOKE DISPERSAL.....POOR TO FAIR (1000-24000 KNOT-FT).
WIND (20 FT)........SOUTH WINDS 5 TO 7 MPH.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........30     14     11     8      16     31
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TSTM COV........
TEMP............68     61     54     50     48     47
RH..............29     39     57     66     71     74
20 FT WIND......SSE 5  SE 5   SE 6   SSE 6  S 7    S 7
20 FT WIND GUST.                     10     10     10
EYE LEVEL WIND..SSE 4  SE 4   SE 4   SSE 4  S 5    S 5
EYE LVL WND GST.                     10     10     10
MIX HGT (FT)....8100   5400   300    300    300    300
MIXNG WIND......SSW 2  S 5    SSE 6  SSE 5  S 5    S 6
HAINES INDEX....5      5      5      5      5      4

$$
FORECASTER...BEERENDS
REQUESTED BY...KEVIN GOODRICH
TYPE OF REQUEST...PRESCRIBED
.TAG 20160518.WESTF.01/DMX



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