Suppression Forecast
Issued by NWS Omaha/Valley, NE

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FNUS73 KOAX 221018
FWSOAX

Spot Forecast for Hitchcock Nature Center...Pottawattamie County Conservation
National Weather Service Omaha/Valley NE
418 AM CST Wed Nov 22 2017

Forecast is based on ignition time of 0600 CST on November 22.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Dry weather will continue today as warming southerly winds
increase around a departing high pressure system. Lowest afternoon
relative humidities will be in the 30 to 35 percent range.

.TODAY...

Sky/weather.........Sunny (15-25 percent), then becoming partly
                    sunny (45-55 percent).
Max temperature.....Around 42.
Min humidity........31 percent.
Wind (20 ft)........Light and variable winds, becoming south 6 to
                    11 mph with gusts up to 20 mph in the late
                    morning and afternoon.
Mixing height.......100-2000 ft AGL, increasing to 1200-2100 ft AGL
                    early in the afternoon.
Transport winds.....South 5 to 14 mph, increasing to 15 to 23 mph
                    in the late morning and afternoon.
Smoke dispersal.....Poor to good (200-40700 knot-ft).
GFDI (max)..........Low.
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 (CST)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........1      1      7      20     43     51
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............16     19     26     35     41     41
RH..............77     72     55     38     31     35
20 ft wind......S 2    S 4    S 7    S 9    S 11   S 10
20 ft wind gust.       5      10     15     20     15
Mix hgt (ft)....300    100    700    1800   2100   1700
Transport wind..S 5    S 10   S 15   S 18   S 22   S 21
GFDI............0      0      1      2      3      2
Haines index....4      3      3      3      4      4
SDspl kt-ft/10001      1      10     28     40     32

.TONIGHT...

Sky/weather.........Mostly cloudy (55-65 percent), then becoming
                    partly cloudy (25-35 percent), then becoming
                    clear (0-10 percent).
Min temperature.....Around 31.
Max humidity........99 percent.
Wind (20 ft)........Southwest winds 5 to 7 mph, becoming west
                    around 5 mph after midnight, then becoming
                    light and variable late, becoming northwest 5
                    to 6 mph late.
Mixing height.......200-700 ft AGL.
Transport winds.....Northwest 7 to 15 mph.
Smoke dispersal.....Poor (1600 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 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........58     34     22     9      4      3
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............36     35     34     31     31     31
RH..............50     52     60     74     85     91
20 ft wind......S 7    S 7    S 6    S 6    W 5    NW 6
20 ft wind gust.10     10     10
Mix hgt (ft)....700    300    200    300    300    300
Transport wind..S 15   S 15   S 13   SW 9   W 8    NW 7
GFDI............1      1      1      0      0      0
Haines index....5      4      4      4      5      5
SDspl kt-ft/10009      3      2      2      2      2

.THANKSGIVING DAY...

Sky/weather.........Sunny (5-15 percent).
Max temperature.....Around 53.
Min humidity........53 percent.
Wind (20 ft)........Northwest winds around 5 mph in the morning,
                    becoming light and variable.
Mixing height.......300 ft AGL.
Transport winds.....South 6 to 9 mph.
Smoke dispersal.....Poor (1200 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 (%).........3      8      8      6      9      12
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............31     32     37     47     53     51
RH..............95     97     84     63     53     58
20 ft wind......NW 5   NW 5   NW 5   NW 4   SW 3   SW 3
20 ft wind gust.                     5      5      5
Mix hgt (ft)....300    300    300    300    300    300
Transport wind..NW 8   NW 8   NW 7   W 6    SW 6   S 8
GFDI............0      0      0      0      0      0
Haines index....5      4      4      4      4      4
SDspl kt-ft/10002      2      1      1      1      2

$$
Forecaster...Kern
Requested by...chad graeve
Type of request...PRESCRIBED
.TAG 1719078.0/OAX



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