898
FNUS73 KUNR 280258
FWSUNR

Spot Forecast for Forever Fire...BIA
National Weather Service Rapid City SD
858 PM MDT Thu Jun 27 2024

Forecast is based on forecast start time of 2200 CDT on June 27.
If conditions become unrepresentative, contact the National Weather
Service.

...STRONG NORTHWEST WINDS APPROACHING LATE THIS EVENING...

.DISCUSSION...Thunderstorms are expected to pass north of the area
later this evening. However, strong northwest outflow winds are
likely to move through between 2300 and 2400. These winds will
gradually diminish overnight. Slightly cooler and drier conditions
are expected Friday with breezy northwest winds, mainly in the
morning.

.REST OF TONIGHT...

Sky/weather.........Becoming mostly cloudy (60-70 percent).
Min temperature.....Around 62.
Max humidity........97 percent.
Wind (20 ft)........South winds 15 to 30 mph, shifting northwest 25
                    to 40 mph between 2300 and 2400 late this evening.
                    A few gusts near 50 mph possible. Winds then gradually
                    diminishing overnight.
CWR.................0 percent.
LAL.................1.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Mixing height.......500 to 1000 ft agl.
Transport winds.....South around 25 mph shifting to the northwest
                    25 to 40 mph overnight.
Smoke dispersal.....Poor.

.FRIDAY...

Sky/weather.........Sunny (15-25 percent).
Max temperature.....Around 79.
Min humidity........39 percent.
Wind (20 ft)........North winds around 20 mph shifting to the
                    northeast 10 to 15 mph in the afternoon. Gusts
                    up to 28 mph.
CWR.................0 percent.
LAL.................1.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......4400 to 4900 ft agl.
Transport winds.....North around 30 mph becoming northeast around
                    20 mph in the afternoon.
Smoke dispersal.....Good.

.FRIDAY NIGHT...

Sky/weather.........Partly cloudy (25-35 percent). Slight chance of
                    showers and thunderstorms in the evening.
Min temperature.....Around 53.
Max humidity........83 percent.
Wind (20 ft)........North winds 10 to 15 mph with gusts to around
                    22 mph. Gusty and erratic winds expected near
                    thunderstorms in the evening.
CWR.................0 percent.
LAL.................2 until 2400, then 1.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......500 to 1000 ft agl.
Transport winds.....Northeast around 20 mph shifting to the
                    northwest overnight.
Smoke dispersal.....Poor.

.SATURDAY...

Sky/weather.........Sunny (10-20 percent).
Max temperature.....Around 71.
Min humidity........46 percent.
Wind (20 ft)........North winds 10 to 20 mph with gusts to around
                    25 mph.
CWR.................0 percent.
LAL.................1. 5 to 20 mph shifting to the west
                    overnight. Gusts up to 25 mph.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Mixing height.......4400 to 4900 ft agl.
Transport winds.....Northwest around 35 mph becoming north around
                    20 mph in the afternoon.
Smoke dispersal.....Very good.

$$
Forecaster...JJ
Requested by...Bert Shields
Type of request...WILDFIRE
.TAG 2416853.0/UNR
.DELDT 06/27/24
.FormatterVersion 2.0.0
.EMAIL Bert.shields@bia.gov