Suppression Forecast
Issued by NWS Des Moines, IA

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000
FNUS73 KDMX 311329
FWSDMX

SPOT FORECAST FOR VOSS FENCELINE...IOWA DNR
NATIONAL WEATHER SERVICE DES MOINES IA
829 AM CDT TUE MAR 31 2015

FORECAST IS BASED ON IGNITION TIME OF 0845 CDT ON MARCH 31.
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...

WEAK HIGH PRESSURE WILL BE IN PLACE ACROSS IOWA TODAY. WINDS WILL
BE LIGHT TODAY WITH SPEEDS GENERALLY AROUND 10 MPH OR LESS HOWEVER
WE STILL HAVE DRY FUELS AND A WARM AND DRY AIRMASS IN PLACE
ACROSS IOWA SO RELATIVE HUMIDITIES WILL DROP TO NEAR 25 PERCENT
FOR A COUPLE HOURS THIS AFTERNOON AND FIRE DANGER WILL STILL BE
HIGH TODAY AS A RESULT. CONDITIONS WILL BE BACK TO NEAR RED FLAG
CRITERIA ON WEDNESDAY.

.TODAY...

SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........26 PERCENT.
EYE LEVEL WINDS.....WEST WINDS 6 TO 13 MPH.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1300 FT AGL INCREASING TO 8700 FT AGL.
MIXING WINDS........NORTHWEST 5 TO 13 MPH INCREASING TO 13 TO 17
                    MPH LATE IN THE MORNING.
SMOKE DISPERSAL.....POOR TO GOOD (1100-44700 KNOT-FT) INCREASING TO
                    EXCELLENT TO EXCELLENT (78600-122700 KNOT-FT)
                    IN THE AFTERNOON.
WIND (20 FT)........WEST WINDS 6 TO 13 MPH.

TIME (CDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........4   3   5   8   9   9   10  10  10
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............47  54  60  64  67  69  70  70  69
RH..............65  52  46  37  30  27  26  26  27
20 FT WIND DIR..NW  NW  NW  NW  NW  NW  NW  W   W
20 FT WIND SPD..9   8   8   8   8   8   7   7   6
20 FT WIND GUST.10  10  10  10  10  10  10  10  10
EYE LVL WND DIR.NW  NW  NW  NW  NW  NW  NW  W   W
EYE LVL WND SPD.6   6   6   6   6   6   5   5   4
EYE LVL WND GST.10  10  10  10  10  10  10  10  10
MIX HGT (KFT)...1.0 1.3 3.5 5.7 7.8 8.1 8.4 8.7 7.3
MIXNG WIND DIR..NW  NW  NW  NW  NW  NW  NW  NW  W
MIXNG WIND SPD..10  13  15  16  17  17  16  15  13
HAINES INDEX....5   5   5   5   5   5   4   4   4

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....AROUND 47.
MAX HUMIDITY........66 PERCENT.
EYE LEVEL WINDS.....SOUTH WINDS 5 TO 12 MPH.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......5900 FT AGL DECREASING TO 300 FT AGL.
MIXING WINDS........SOUTH 6 TO 9 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (1300-47900 KNOT-FT).
WIND (20 FT)........SOUTH WINDS 5 TO 12 MPH.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........11     11     11     11     13     17
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TSTM COV........
TEMP............68     54     48     47     49     49
RH..............29     52     63     65     61     63
20 FT WIND......SW 6   S 6    S 7    S 9    S 10   S 12
20 FT WIND GUST.10                   10
EYE LEVEL WIND..SW 4   S 4    S 5    S 6    S 7    S 9
EYE LVL WND GST.10                   10
MIX HGT (FT)....5900   3100   300    300    300    300
MIXNG WIND......W 9    SW 6   S 6    S 6    S 8    S 9
HAINES INDEX....4      4      5      5      5      6

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (65-75 PERCENT). CHANCE OF
                    SHOWERS AND THUNDERSTORMS LATE IN THE
                    AFTERNOON.
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........40 PERCENT.
EYE LEVEL WINDS.....BREEZY. SOUTH WINDS 13 TO 21 MPH INCREASING TO
                    23 TO 29 MPH LATE IN THE MORNING.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......1900 FT AGL INCREASING TO 5000 FT AGL.
MIXING WINDS........SOUTH 10 TO 15 MPH INCREASING TO 37 TO 41 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (2200-49600 KNOT-FT) INCREASING TO
                    EXCELLENT TO EXCELLENT (81800-171300 KNOT-FT)
                    IN THE AFTERNOON.
WIND (20 FT)........BREEZY. SOUTH WINDS 13 TO 21 MPH INCREASING TO
                    23 TO 29 MPH WITH GUSTS TO AROUND 40 MPH LATE
                    IN THE MORNING. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS LATE IN THE
                    AFTERNOON.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
SKY (%).........21        27        43        59
WEATHER COV.....
WEATHER TYPE....NONE      NONE      NONE      NONE
TSTM COV........
TEMP............49        54        67        77
RH..............66        61        49        40
20 FT WIND......S 13G15   S 18G25   S 25G35   S 29G40
EYE LEVEL WIND..S 9G15    S 13G25   S 18G35   S 21G40
MIX HGT (FT)....300       900       2700      4500
MIXNG WIND......S 10      S 20      S 36      S 40
HAINES INDEX....6         5         4         3

$$
FORECASTER...DONAVON
REQUESTED BY...JEFF FEISEL
TYPE OF REQUEST...PRESCRIBED
.TAG 20150331.VOSSF.01/DMX



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