Suppression Forecast
Issued by NWS Des Moines, IA

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FNUS73 KDMX 171525
FWSDMX

SPOT FORECAST FOR RESEARCH STRIPS AND PLC ISLANDS...USFWS
NATIONAL WEATHER SERVICE DES MOINES IA
925 AM CST WED DEC 17 2014

FORECAST IS BASED ON IGNITION TIME OF 1030 CST ON DECEMBER 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...

A SURFACE AREA OF HIGH PRESSURE WILL MOVE INTO WESTERN IOWA
TODAY. THIS WILL RESULT IN LIGHT NORTH TO NORTHWESTERLY WINDS
OVER CENTRAL IOWA THROUGH THIS AFTERNOON. AN INVERSION ALOFT WILL
KEEP MIXING HEIGHTS DOWN BELOW 1.5 TO 2 KFT THROUGHOUT THE DAY.
TONIGHT...LOOK FOR INCREASING CLOUDS AND A CHANCE OF LIGHT
SNOW...MAINLY SOUTH OF CENTRAL IOWA.

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT).
MAX TEMPERATURE.....AROUND 27.
MIN HUMIDITY........57 PERCENT.
EYE LEVEL WINDS.....NORTH WINDS 5 TO 9 MPH.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......1900 FT AGL.
MIXING WINDS........NORTH 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR (3800-11200 KNOT-FT).
WIND (20 FT)........NORTH WINDS 5 TO 9 MPH.

TIME (CST)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........57  52  46  47  49  50  52  54
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............20  22  24  26  26  27  26  25
RH..............71  68  62  60  60  57  60  62
20 FT WIND DIR..NW  NW  NW  NW  NW  NW  N   N
20 FT WIND SPD..7   7   7   6   6   5   5   5
20 FT WIND GUST.
EYE LVL WND DIR.NW  NW  NW  NW  NW  NW  N   N
EYE LVL WND SPD.5   5   5   4   4   4   4   4
EYE LVL WND GST.
MIX HGT (KFT)...1.0 1.4 1.9 1.9 1.9 1.9 1.7 1.5
MIXNG WIND DIR..NW  NW  NW  NW  NW  NW  N   N
MIXNG WIND SPD..8   7   7   6   5   5   5   6
HAINES INDEX....3   4   4   4   3   3   3   4

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). SLIGHT CHANCE OF
                    SNOW EARLY IN THE MORNING.
MIN TEMPERATURE.....AROUND 19.
MAX HUMIDITY........84 PERCENT.
EYE LEVEL WINDS.....NORTHEAST WINDS AROUND 5 MPH EARLY IN THE
                    EVENING BECOMING LIGHT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......1300 FT AGL.
MIXING WINDS........NORTHEAST 3 TO 7 MPH.
SMOKE DISPERSAL.....POOR(1600-7100 KNOT-FT).
WIND (20 FT)........NORTHEAST WINDS AROUND 5 MPH EARLY IN THE
                    EVENING BECOMING LIGHT.

TIME (CST)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........55     56     58     59     67     78
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TSTM COV........
TEMP............24     22     21     20     20     20
RH..............65     71     77     81     81     81
20 FT WIND......N 5    N 5    NE 3   NE 3   NE 3   NE 3
20 FT WIND GUST.              5      5      5      5
EYE LEVEL WIND..N 4    N 4    NE 2   NE 2   NE 2   NE 2
EYE LVL WND GST.              5      5      5      5
MIX HGT (FT)....1300   800    500    500    1000   1200
MIXNG WIND......N 6    N 5    N 3    NE 6   NE 7   NE 7
HAINES INDEX....4      4      4      4      4      4

.THURSDAY...

SKY/WEATHER.........CLOUDY (85-95 PERCENT). CHANCE OF SNOW LATE IN
                    THE MORNING.
MAX TEMPERATURE.....AROUND 30.
MIN HUMIDITY........60 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2000 FT AGL.
MIXING WINDS........NORTH 1 TO 5 MPH.
SMOKE DISPERSAL.....POOR (1900-4600 KNOT-FT).
WIND (20 FT)........LIGHT WINDS.

TIME (CST)      6 AM      9 AM      NOON      3 PM
SKY (%).........86        88        91        90
WEATHER COV.....S CHC     CHANCE    S CHC
WEATHER TYPE....SNOW      SNOW      SNOW      NONE
TSTM COV........
TEMP............19        21        28        30
RH..............84        81        66        60
20 FT WIND......NE 3G5    E 3G5     E 2       E 2
EYE LEVEL WIND..NE 2G5    E 2G5     E 1       E 1
MIX HGT (FT)....1100      1200      1900      2000
MIXNG WIND......NE 5      E 3       N 1       NW 2
HAINES INDEX....4         2         3         3

$$
FORECASTER...SKOW
REQUESTED BY...JIM KRIZMAN
TYPE OF REQUEST...PRESCRIBED
.TAG 20141217.RESEA.01/DMX


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