Suppression Forecast
Issued by NWS Des Moines, IA

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FNUS73 KDMX 241304
FWSDMX

Spot Forecast for Rathbun Lake...USACE
National Weather Service Des Moines IA
804 AM CDT Fri Mar 24 2017

Forecast is based on ignition time of 0900 CDT on March 24.
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...

Showers and thunderstorms will spread across the state today as a
boundary slowly sags south. North winds can be expected over
northern Iowa today while the south will begin the day with
southerly flow then becoming northerly through the day.
Precipitation chances will continue on Saturday as the chance for
rain lingers.

.TODAY...

Sky/weather.........Mostly cloudy (70-80 percent). Slight chance of
                    rain showers in the morning, then rain showers
                    and chance of thunderstorms in the afternoon.
Max temperature.....Around 68.
Min humidity........50 percent.
Eye level winds.....South winds 8 to 16 mph.
Wind (20 ft)........South winds 8 to 16 mph. Gusty and erratic
                    winds expected near thunderstorms early in the
                    afternoon. Gusty and erratic winds expected
                    near thunderstorms late in the afternoon.
Mixing height.......300-1900 ft AGL increasing to 2900-3900 ft AGL
                    in the afternoon.
Transport winds.....South 13 to 22 mph shifting to the southwest 18
                    to 25 mph in the afternoon, then shifting to
                    the south around 14 mph late in the afternoon.
Haines Index........2 to 4 or very low potential for large plume
                    dominated fire growth to or low potential for
                    large plume dominated fire growth.

TIME (CDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........74  81  86  92  97  96  94  93  94
WEATHER COV.....SCH SCH SCH SCH CHC CHC LKY DEF DEF
WEATHER TYPE....RW  RW  RW  RW  RW  RW  RW  RW  RW
TSTM COV........                CHC CHC CHC SCH SCH
TEMP............64  66  67  67  66  66  65  64  64
RH..............58  52  50  52  56  58  65  70  70
20 FT WIND DIR..S   S   SW  SW  SW  SW  SW  S   S
20 FT WIND SPD..15  16  16  15  14  13  12  9   8
20 FT WIND GUST.20  25  25  20  20  15  15  10  10
EYE LVL WND DIR.S   S   SW  SW  SW  SW  SW  S   S
EYE LVL WND SPD.9   10  10  9   8   8   7   5   5
EYE LVL WND GST.20  25  25  20  20  15  15  10  10
MIX HGT (KFT)...0.7 1.0 1.9 2.9 3.9 3.8 3.7 3.6 3.5
MIXNG WIND DIR..S   S   S   SW  SW  SW  SW  S   S
MIXNG WIND SPD..16  18  22  24  25  24  22  18  14
HAINES INDEX....4   4   3   3   2   2   2   2   2

$$
Forecaster...Beerends
Requested by...Joshua Gormley
Type of request...PRESCRIBED
.TAG 1705134.0/DMX
.EMAIL joshua.p.gormley2@usace.army.mil


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