Suppression Forecast
Issued by NWS Omaha/Valley, NE

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000
FNUS73 KOAX 241159
FWSOAX

Spot Forecast for Hitchcock Nature Center...Pottawattamie County Conservation
National Weather Service Omaha/Valley NE
559 AM CST Fri Nov 24 2017

Forecast is based on ignition time of 0600 CST on November 24.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Another day of unseasonably warm temperatures can be expected across
much of the area today.  These temperatures are in advance of a cold
front that will be moving through eastern Nebraska and southwest Iowa
late this morning and this afternoon. Some record high temperatures
will be possible again in southeast Nebraska and southwest Iowa. Gusty
northwest winds will follow behind the front today with wind gusts 35
to 45 mph for a time early this afternoon. Lowest relative humidities
should range from 25 to 40 percent.  Winds will diminish by this
evening as high pressure builds into the region.

.TODAY...

Sky/weather.........Sunny (15-25 percent).
Max temperature.....Around 69.
Min humidity........37 percent.
Wind (20 ft)........Southwest winds 6 to 9 mph, becoming northwest
                    11 to 16 mph with gusts up to 35 mph in the
                    afternoon.
Mixing height.......100-1900 ft AGL, increasing to 1600-3500 ft AGL
                    in the afternoon.
Transport winds.....Southwest 15 to 17 mph, becoming northwest 18
                    to 26 mph late in the morning, then increasing
                    to 30 to 35 mph early in the afternoon.
Smoke dispersal.....Poor to good (400-35500 knot-ft), increasing to
                    excellent (63700 knot-ft) in the afternoon,
                    then decreasing to good (45700 knot-ft) early.
GFDI (max)..........Moderate.
Haines Index........2 to 6 or very low potential for large plume
                    dominated fire growth to or high potential for
                    large plume dominated fire growth.

TIME (CST)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........8      13     14     11     22     24
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............48     45     53     65     69     65
RH..............76     86     66     45     37     40
20 ft wind......S 9    S 6    SW 7   NW 10  NW 16  NW 14
20 ft wind gust.15     15     10     15     35     25
Mix hgt (ft)....300    100    700    1900   3300   2700
Transport wind..S 16   S 15   SW 17  NW 22  NW 31  NW 33
GFDI............0      1      1      3      9      5
Haines index....6      6      6      6      5      3
SDspl kt-ft/10003      0      10     36     91     81

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
Min temperature.....Around 34.
Max humidity........85 percent.
Wind (20 ft)........Northwest winds 5 to 9 mph until early morning,
                    becoming light and variable.
Mixing height.......200-600 ft AGL.
Transport winds.....Northwest 16 to 25 mph, decreasing to 7 to 13
                    mph in the late evening and overnight.
Smoke dispersal.....Poor to fair (1300-13700 knot-ft).
GFDI (max)..........Low.
Haines Index........2 to 5 or very low potential for large plume
                    dominated fire growth to or moderate potential
                    for large plume dominated fire growth.

TIME (CST)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........19     12     8      7      4      2
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............56     50     45     42     39     36
RH..............51     58     65     67     73     79
20 ft wind......NW 9   NW 6   NW 6   NW 5   NW 4   NW 4
20 ft wind gust.15     10                   5      5
Mix hgt (ft)....600    200    200    300    300    300
Transport wind..NW 25  NW 16  NW 10  NW 9   NW 8   NW 8
GFDI............2      1      1      0      0      0
Haines index....2      4      5      5      5      5
SDspl kt-ft/100014     1      2      2      2      2

.SATURDAY...

Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 55.
Min humidity........41 percent.
Wind (20 ft)........Light and variable winds, becoming west 5 to 6
                    mph in the afternoon.
Mixing height.......200-1800 ft AGL, increasing to 1100-2800 ft AGL
                    early in the afternoon.
Transport winds.....West 7 to 16 mph.
Smoke dispersal.....Poor to good (1000-39800 knot-ft).
GFDI (max)..........Low.
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 (CST)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........2      3      4      4      4      4
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............34     36     42     51     55     52
RH..............85     82     67     50     41     46
20 ft wind......W 4    W 3    W 3    W 5    W 6    W 6
20 ft wind gust.5      5      5             10
Mix hgt (ft)....300    200    400    1000   2500   2200
Transport wind..W 8    W 7    W 7    W 10   W 15   W 15
GFDI............0      0      0      1      1      1
Haines index....5      5      5      5      5      5
SDspl kt-ft/10002      1      2      9      34     31

$$
Forecaster...Zapotocny
Requested by...chad graeve
Type of request...PRESCRIBED
.TAG 1719097.0/OAX



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