Suppression Forecast
Issued by NWS Des Moines, IA

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000
FNUS73 KDMX 211044
FWSDMX

Spot Forecast for Unit 3...USFWS
National Weather Service Des Moines IA
544 AM CDT Tue Mar 21 2017

Forecast is based on ignition time of 0600 CDT on March 21.
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...

Fairly seasonal temperatures and humidities are anticipated today
with a shade toward cooler conditions and higher humidities. This
will also keep mixing levels somewhat lower. Skies will be cloudy
through the morning, but no precipitation is expected.

.TODAY...

Sky/weather.........Partly sunny (50-60 percent).
Max temperature.....Around 41.
Min humidity........46 percent.
Eye level winds.....North winds 10 to 15 mph.
Wind (20 ft)........North winds 10 to 15 mph.
Mixing height.......1000-2900 ft AGL increasing to 3100-3900 ft AGL
                    in the afternoon.
Transport winds.....North 15 to 20 mph.
Haines Index........3 to 5 or very low potential for large plume
                    dominated fire growth to or moderate potential
                    for large plume dominated fire growth.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........70  67  66  75  81  74  65  64  57  54  44  29
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............36  35  35  35  34  36  37  39  40  41  41  41
RH..............72  72  72  69  72  67  64  59  55  50  48  46
20 FT WIND DIR..N   N   N   N   N   N   N   N   N   N   N   N
20 FT WIND SPD..10  12  13  14  15  15  15  14  14  14  14  13
20 FT WIND GUST.15  15  15  20  20  20  20  20  20  20  20  20
EYE LVL WND DIR.N   N   N   N   N   N   N   N   N   N   N   N
EYE LVL WND SPD.6   7   8   8   9   9   9   8   8   8   8   8
EYE LVL WND GST.15  15  15  20  20  20  20  20  20  20  20  20
MIX HGT (KFT)...1.0 1.4 1.7 2.0 2.4 2.6 2.9 3.1 3.4 3.6 3.9 3.8
MIXNG WIND DIR..N   N   N   N   N   N   N   N   N   N   N   N
MIXNG WIND SPD..15  18  20  20  18  17  17  16  16  17  17  17
HAINES INDEX....4   3   3   4   4   4   4   4   4   5   5   5

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent) then becoming
                    mostly cloudy (55-65 percent).
Min temperature.....Around 21.
Max humidity........71 percent.
Eye level winds.....East winds 8 to 12 mph.
Wind (20 ft)........East winds 8 to 12 mph.
Mixing height.......2700-3800 ft AGL decreasing to 300-1600 ft AGL
                    in the late evening and overnight.
Transport winds.....East 15 to 17 mph.
Haines Index........4 to 5 or low potential for large plume
                    dominated fire growth to or moderate potential
                    for large plume dominated fire growth.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........24     18     16     19     42     63
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TSTM COV........
TEMP............39     35     30     27     26     24
RH..............50     56     66     68     65     68
20 FT WIND......N 12   N 9    NE 8   NE 9   E 10   E 10
20 FT WIND GUST.15     15     10     15     15     15
EYE LEVEL WIND..N 7    N 5    NE 5   NE 5   E 6    E 6
EYE LVL WND GST.15     15     10     15     15     15
MIX HGT (FT)....3800   2700   500    400    300    300
MIXNG WIND......N 17   N 16   NE 15  NE 16  E 17   E 15
HAINES INDEX....5      5      4      4      4      4

.WEDNESDAY...

Sky/weather.........Mostly cloudy (75-85 percent). Slight chance of
                    snow early in the afternoon. Slight chance of
                    rain in the afternoon.
Max temperature.....Around 38.
Min humidity........47 percent.
Eye level winds.....Southeast winds 10 to 14 mph.
Wind (20 ft)........Southeast winds 10 to 14 mph.
Mixing height.......300-2100 ft AGL increasing to 2500-3200 ft AGL
                    late in the morning.
Transport winds.....Southeast 15 to 18 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
SKY (%).........72        73        83        88
WEATHER COV.....                              S CHC
WEATHER TYPE....NONE      NONE      NONE      RAIN
TSTM COV........
TEMP............22        25        33        38
RH..............71        62        51        50
20 FT WIND......E 10G15   SE 12G15  SE 14G20  SE 14G20
EYE LEVEL WIND..E 6G15    SE 7G15   SE 8G20   SE 8G20
MIX HGT (FT)....300       1500      2800      3200
MIXNG WIND......E 15      SE 16     SE 15     SE 16
HAINES INDEX....4         4         4         4

$$
Forecaster...Small
Requested by...Chad Loreth
Type of request...PRESCRIBED
.TAG 1704751.0/DMX
.EMAIL chad_loreth@fws.gov


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