670
FNUS73 KUNR 202239
FWSUNR

Spot Forecast for brakes fire...Great Plains Dispatch
National Weather Service Rapid City SD
439 PM MDT Fri Sep 20 2024

Forecast is based on forecast start time of 1700 MDT on September 20.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Dry and warm weather continues through early this
evening with westerly winds. A cold front will move through the area
between 10 PM and midnight, switching winds to the northwest and
increasing to 10 to 20 mph with gusts to 30 mph during the overnight.
The breezy conditions will continue through much of Saturday. Saturday
will be much cooler with higher humidity.

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 83.
Min humidity........15-18 percent.
Wind (20 ft)........West winds 5 to 10 mph with gusts to
                    around 15 mph.
CWR.................0 percent.
LAL.................1.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......8400 to 8900 ft agl.
Transport winds.....West around 15 mph.
Smoke dispersal.....Very good.

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
Min temperature.....Around 44.
Max humidity........80-85 percent.
Wind (20 ft)........West winds 5 to 10 mph becoming northwest
                    between 10 PM and midnight and increasing to
                    10 to 20 mph with gusts to 30 mph.
CWR.................0 percent.
LAL.................1.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......700 to 1200 ft agl.
Transport winds.....Northwest 10 to 20 mph.
Smoke dispersal.....Poor.

.SATURDAY...

Sky/weather.........Sunny (5-15 percent).
Max temperature.....Around 63.
Min humidity........33-37 percent.
Wind (20 ft)........Northwest winds 10 to 18 mph shifting to the
                    north in the afternoon. Gusts to around
                    25 mph.
CWR.................0 percent.
LAL.................1.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Mixing height.......4800 to 5300 ft agl.
Transport winds.....Northwest around 20 mph.
Smoke dispersal.....Good.

$$
Forecaster...ST
Requested by...Alyssa
Type of request...WILDFIRE
.TAG 2422809.0/UNR
.DELDT 09/20/24
.FormatterVersion 2.0.0
.EMAIL sdgpc@firenet.gov