Suppression Forecast
Issued by NWS Des Moines, IA

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000
FNUS73 KDMX 061326
FWSDMX

SPOT FORECAST FOR TOMAHAWK WMA...IA DNR
NATIONAL WEATHER SERVICE DES MOINES IA
826 AM CDT FRI MAY 6 2016

FORECAST IS BASED ON IGNITION TIME OF 1200 CDT ON MAY 06.
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...
THE SURFACE WIND WILL INCREASE FROM THE SOUTHWEST TO 15 TO 25 MPH
WITH GUSTS TO 30 MPH. RELATIVE HUMIDITY VALUES WILL DROP TO
BETWEEN 25 AND 30 PERCENT BY EARLY TO MID AFTERNOON.

.TODAY...

SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 85.
MIN HUMIDITY........26 PERCENT.
EYE LEVEL WINDS.....SOUTHWEST WINDS 8 TO 17 MPH INCREASING TO 16 TO
                    18 MPH EARLY IN THE AFTERNOON.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1200 FT AGL INCREASING TO 7200 FT AGL.
MIXING WINDS........SOUTHWEST 8 TO 16 MPH INCREASING TO 18 TO 24
                    MPH LATE IN THE MORNING.
SMOKE DISPERSAL.....POOR TO GOOD (1600-46200 KNOT-FT) INCREASING TO
                    EXCELLENT TO EXCELLENT (72600-146400 KNOT-FT)
                    IN THE AFTERNOON.
WIND (20 FT)........SOUTHWEST WINDS 8 TO 17 MPH INCREASING TO 16 TO
                    18 MPH EARLY IN THE AFTERNOON.

TIME (CDT)      12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........4   4   4   5   5   7
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............79  81  83  84  84  84
RH..............33  31  28  27  26  27
20 FT WIND DIR..SW  SW  SW  SW  SW  SW
20 FT WIND SPD..16  17  18  18  18  16
20 FT WIND GUST.25  25  25  25  25  25
EYE LVL WND DIR.SW  SW  SW  SW  SW  SW
EYE LVL WND SPD.11  12  13  13  13  11
EYE LVL WND GST.25  25  25  25  25  25
MIX HGT (KFT)...3.9 5.3 5.9 6.6 7.2 6.2
MIXNG WIND DIR..WSW SW  SW  WSW WSW SW
MIXNG WIND SPD..22  23  24  24  23  23
HAINES INDEX....5   5   5   5   5   5

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (45-55 PERCENT). SLIGHT CHANCE OF
                    SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
MIN TEMPERATURE.....AROUND 56.
MAX HUMIDITY........78 PERCENT.
EYE LEVEL WINDS.....WEST WINDS 6 TO 15 MPH SHIFTING TO THE NORTH 5
                    TO 6 MPH EARLY IN THE MORNING.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5300 FT AGL DECREASING TO 300 FT AGL.
MIXING WINDS........SOUTHWEST 16 TO 22 MPH DECREASING TO 7 TO 12
                    MPH IN THE LATE EVENING AND EARLY
                    MORNING...THEN SHIFTING TO THE NORTH 3 TO 6 MPH
                    EARLY IN THE MORNING.
SMOKE DISPERSAL.....GOOD TO EXCELLENT (40600-100700 KNOT-FT)
                    DECREASING TO POOR TO FAIR (800-16200 KNOT-FT)
                    IN THE LATE EVENING AND OVERNIGHT.
WIND (20 FT)........WEST WINDS 6 TO 15 MPH SHIFTING TO THE NORTH 5
                    TO 6 MPH EARLY IN THE MORNING. GUSTY AND
                    ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS AFTER
                    MIDNIGHT.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........10     12     12     37     45     45
WEATHER COV.....                            S CHC  S CHC
WEATHER TYPE....NONE   NONE   NONE   NONE   RNSHWR RNSHWR
TSTM COV........                            S CHC  S CHC
TEMP............82     76     69     65     62     59
RH..............29     38     49     60     70     78
20 FT WIND......SW 15  SW 12  SSW 9  WSW 7  W 6    N 5
20 FT WIND GUST.20     15     10     10
EYE LEVEL WIND..SW 11  SW 9   SSW 6  WSW 5  W 4    N 4
EYE LVL WND GST.20     15     10     10
MIX HGT (FT)....5300   3000   300    300    300    300
MIXNG WIND......SW 22  SW 16  SSW 8  SW 8   W 7    N 5
HAINES INDEX....5      5      4      4      4      3

.SATURDAY...

SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). CHANCE OF SHOWERS
                    AND THUNDERSTORMS IN THE MORNING.
MAX TEMPERATURE.....AROUND 66.
MIN HUMIDITY........43 PERCENT.
EYE LEVEL WINDS.....NORTHEAST WINDS 7 TO 15 MPH.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2100 FT AGL INCREASING TO 3600 FT AGL EARLY IN
                    THE AFTERNOON.
MIXING WINDS........NORTHEAST 3 TO 9 MPH INCREASING TO 15 TO 22 MPH
                    IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....POOR TO GOOD (700-51600 KNOT-FT).
WIND (20 FT)........NORTHEAST WINDS 7 TO 15 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    MORNING.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
SKY (%).........62        66        64        65
WEATHER COV.....CHANCE    CHANCE
WEATHER TYPE....RNSHWR    RNSHWR    NONE      NONE
TSTM COV........CHANCE    CHANCE
TEMP............56        58        61        65
RH..............77        64        56        46
20 FT WIND......NNE 8G10  NNE 14G20 NNE 14G20 NNE 13G15
EYE LEVEL WIND..NNE 6G10  NNE 10G20 NNE 10G20 NNE 9G15
MIX HGT (FT)....300       1300      2000      3100
MIXNG WIND......NNE 3     NNE 16    ENE 22    ENE 17
HAINES INDEX....3         2         3         4

$$
FORECASTER...BOKSA
REQUESTED BY...JEFF FEISEL
TYPE OF REQUEST...PRESCRIBED
.TAG 20160506.TOMAH.01/DMX



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