Suppression Forecast
Issued by NWS Des Moines, IA

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000
FNUS73 KDMX 151027
FWSDMX

Spot Forecast for WDM Rx...City of West Des Moines
National Weather Service Des Moines IA
427 AM CST Fri Dec 15 2017

Forecast is based on ignition time of 0900 CST on December 15.
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...

Winds will become more westerly through the day and then out of
the southwest into this evening. Some gustiness is expected this
afternoon. RH values will fall to around 50 percent this
afternoon.

.REST OF TODAY...

Sky/weather.........Partly sunny (65-75 percent).
Max temperature.....Around 43.
Min humidity........53 percent.
Wind (20 ft)........Southwest winds 8 to 12 mph.
Mixing height.......900-2800 ft AGL increasing to 3000-4100 ft AGL
                    in the afternoon, then decreasing to 1900 ft
                    AGL late in the afternoon.
Transport winds.....West 14 to 20 mph increasing to 23 to 29 mph
                    late in the morning, then becoming southwest 13
                    to 18 mph late in the afternoon.
Haines Index........3 to 4 or very low potential for large plume
                    dominated fire growth to low potential for
                    large plume dominated fire growth.

TIME (CST)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........80  77  77  76  72  68  64  61  58
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............30  33  36  39  41  43  43  41  38
RH..............78  75  69  62  57  53  53  57  62
20 FT WIND DIR..W   W   W   W   W   W   W   SW  SW
20 FT WIND SPD..8   9   10  12  12  12  12  9   8
20 FT WIND GUST.10  15  15  15  15  15  15  15  10
MIX HGT (KFT)...0.9 1.9 2.8 3.8 3.9 4.0 4.1 3.0 1.9
MIXNG WIND DIR..W   W   W   W   W   W   W   SW  SW
MIXNG WIND SPD..14  20  25  29  29  26  23  18  13
HAINES INDEX....3   3   3   3   3   4   4   4   4

.TONIGHT...

Sky/weather.........Mostly cloudy (50-60 percent) then becoming
                    partly cloudy (25-35 percent).
Min temperature.....Around 29.
Max humidity........78 percent.
Wind (20 ft)........Southwest winds 7 to 9 mph.
Mixing height.......300-800 ft AGL.
Transport winds.....Southwest 7 to 10 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (CST)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........55     53     44     28     19     14
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TSTM COV........
TEMP............36     32     32     32     31     30
RH..............67     75     75     72     75     78
20 FT WIND......SW 8   SW 7   SW 8   SW 9   SW 8   SW 7
20 FT WIND GUST.10            10     10     10
MIX HGT (FT)....800    400    300    300    300    300
MIXNG WIND......SW 9   SW 8   SW 9   SW 10  SW 9   SW 7
HAINES INDEX....4      4      4      4      4      4

$$
Forecaster...Beerends
Requested by...Brian Fowler
Type of request...PRESCRIBED
.TAG 1719992.0/DMX
.EMAIL brian.fowler@wdm.iowa.gov


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