967
FNUS73 KOAX 111145
FWSOAX

Spot Forecast for Headquarters...USFWS
National Weather Service Omaha/Valley NE
645 AM CDT Fri Apr 11 2025

Forecast is based on ignition time of 1000 CDT on April 11.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Overall expect a warm, sunny day with light winds. Temperature at
ignition should be around 48 degrees and will top out around 66
this afternoon. RH should start in the mid 60s, but fall into the
30s and upper 20s this afternoon, with a minimum forecast value
of 27 percent. Winds will be light (around 5 mph) and direction
could be somewhat variable at times, but largely should be out of
the north through much of the afternoon. By 5-6 PM, they`ll turn
and become more southeasterly, but should remain fairly light into
the evening. With the light winds, smoke dispersal could be
somewhat limited, especially this morning, but abundant sunshine
should allow for some decent mixing and dispersal in the
afternoon.

RH will recover into the mid 70s overnight. Saturday will be
warmer and windier, with a high temperature in the upper 70s and
south winds gusting around 30 mph, with RH being similar to today.

Strongest Possible Wind Speeds on Day of Burn: 12 mph

Lowest Possible Relative Humidity on Day of Burn: 23 percent

.REST OF TODAY...

Sky/weather.........Sunny (0-5 percent).
Max temperature.....Around 66.
Min humidity........27 percent.
Eye level winds.....Light winds.
Surface winds (mph).Light winds.
Wind (20 ft)........Light winds.
Mixing height.......5100 ft AGL.
Transport winds.....North around 8 mph.
Smoke dispersal.....Fair (18100 knot-ft) early in the morning
                    increasing to good (32100 knot-ft) in the
                    afternoon.
GFDI................1.

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
Min temperature.....Around 43.
Max humidity........75 percent.
Eye level winds.....Southeast winds up to 6 mph.
Surface winds (mph).Southeast winds 6 to 10 mph.
Wind (20 ft)........Southeast winds 5 to 9 mph.
Mixing height.......500 ft AGL.
Transport winds.....Southeast around 12 mph.
Smoke dispersal.....Fair (19700 knot-ft) early in the evening
                    decreasing to poor (4200 knot-ft) late in the
                    night.
GFDI................1.

.SATURDAY...

Sky/weather.........Sunny (15-25 percent).
Max temperature.....Around 78.
Min humidity........29 percent.
Eye level winds.....South winds 6 to 13 mph increasing to around 13
                    mph in the afternoon. Gusts up to 32 mph.
Surface winds (mph).South winds 10 to 21 mph increasing to 21 to 23
                    mph in the afternoon. Gusts up to 32 mph.
Wind (20 ft)........South winds 9 to 18 mph increasing to around 20
                    mph in the afternoon. Gusts up to 32 mph.
Mixing height.......4200 ft AGL.
Transport winds.....South around 29 mph.
Smoke dispersal.....Poor (6400 knot-ft) early in the morning
                    increasing to excellent (126400 knot-ft) in the
                    afternoon.
GFDI................15.

$$
Forecaster...CA
Requested by...Sam Vanourney
Type of request...PRESCRIBED
.TAG 2509816.0/OAX
.DELDT 04/11/25
.FormatterVersion 2.0.0
.EMAIL sam_vanourney@fws.gov