384
FNUS73 KUNR 051323
FWSUNR

Spot Forecast for PR Brush Pile...SD-PRA
National Weather Service Rapid City SD
723 AM MDT Wed Jun 5 2024

Forecast is based on ignition time of 0800 MDT on June 05.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...A mix of sun and clouds will give way to sunny skies this
afternoon with warm (~80 degrees) and dry conditions (RH ~25%) prevailing.
Northwesterly winds will increase through the morning hours, especially
after 0900 with sustained 10 to 20 mph and gusts up to 35-40 mph
during peak heating. Winds will diminish after 1800 and become light
(~5 mph) and variable after 2100-2200 hours this evening.

Warmer (low 80s) and drier (RH ~20%) tomorrow, although westerly winds
will be much lighter, with upper end sustained winds and gusts to 12-15 mph.

Isolated thunderstorm chances return late Friday and continue into the
weekend; next week is trending warm and dry.

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 79.
Min humidity........25-30 percent.
Wind (20 ft)........Northwest winds 10 to 20 mph with gusts to
                    around 28 to 40 mph.
CWR.................0 percent.
LAL.................1.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......6600 to 7100 ft agl.
Transport winds.....Northwest 25 to 35 mph.
Smoke dispersal.....Excellent.

.TONIGHT...

Sky/weather.........Clear (0-10 percent).
Min temperature.....Around 48.
Max humidity........60-65 percent.
Wind (20 ft)........North winds 5 to 15 mph with gusts to around 20
                    mph, becoming light and variable after 2100-2200.
                    overnight.
CWR.................0 percent.
LAL.................1.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......400 to 900 ft agl.
Transport winds.....North around 25 mph becoming northwest around
                    15 mph overnight.
Smoke dispersal.....Poor.

.THURSDAY...

Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 82.
Min humidity........20-25 percent.
Wind (20 ft)........West winds 6 to 13 mph.
CWR.................0 percent.
LAL.................1.
Haines Index........6 or high potential for large plume dominated
                    fire growth.
Mixing height.......6200 to 6700 ft agl.
Transport winds.....West around 15 mph increasing to northwest
                    around 25 mph in the afternoon.
Smoke dispersal.....Very good.

$$
Forecaster...SE
Requested by...IC Bauer
Type of request...PRESCRIBED
.TAG 2415644.0/UNR
.DELDT 06/05/24
.FormatterVersion 2.0.0
.EMAIL Justin.bauer@bia.gov