FNUS73 KUNR 261649
FWSUNR

Spot Forecast for Rim Rock...Forest Service
National Weather Service Rapid City SD
1049 AM MDT Fri Apr 26 2024

Forecast is based on forecast start time of 1000 MDT on April 26. 
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...A slow-moving upper level system will bring scattered
showers and isolated thunderstorms to the burn area today. Radar
indicates a shower over the burn area currently, with more showers
moving into the Black Hills region from the north this morning. The
exact timing showers/storms will develop and/or move over the burn 
area is uncertain, as the showers will be transient and the storms
will be isolated. However, the heaviest rain will stay to the east, 
and only a few hundredths of moisture is expected over the burn area
today. Severe weather is not expected. Chances for precipitation will 
decrease after 9 PM or so, but then increase again Saturday afternoon.

.REST OF TODAY...

Sky/weather.........Mostly cloudy (80-90 percent). Scattered rain
                    showers through the day. Isolated thunderstorms
                    this afternoon. 
Max temperature.....Around 62. 
Min humidity........49 percent. 
Wind (20 ft)........Light and variable winds late this morning, 
                    becoming north 10 to 15 mph by noon, increasing
                    to 15 to 25 mph with gusts to around 
                    30 mph this afternoon. Gusty and erratic winds 
                    expected near any showers or thunderstorms.
CWR.................45 percent. 
LAL.................3. 
Haines Index........2 or very low potential for large plume 
                    dominated fire growth. 
Mixing height.......5600 to 6100 ft agl. 
Transport winds.....North 25 to 35 mph. 
Smoke dispersal.....Very good. 

.TONIGHT...

Sky/weather.........Mostly cloudy (60-70 percent). Chance of 
                    showers and thunderstorms in the evening, then 
                    slight chance of showers after midnight. 
Min temperature.....Around 43. 
Max humidity........88 percent. 
Wind (20 ft)........North winds 10 to 20 mph with gusts up to 30 mph
                    early in the evening. Becoming light and terrain-
                    driven after 9 PM or so. Gusty and erratic winds 
                    expected near thunderstorms. 
CWR.................35 percent. 
LAL.................3 until 2400, then 2. 
Haines Index........2 or very low potential for large plume 
                    dominated fire growth. 
Mixing height.......600 to 1100 ft agl. 
Transport winds.....North 15 to 20 mph. 
Smoke dispersal.....Poor. 

.SATURDAY...

Sky/weather.........Cloudy (90-100 percent). Slight chance of rain 
                    showers in the morning, then rain showers likely
                    in the afternoon. 
Max temperature.....Around 48. 
Min humidity........66 percent. 
Wind (20 ft)........Breezy. Northeast winds 10 to 15 mph increasing 
                    to 15 to 25 mph in the afternoon. Gusts up to 
                    35 mph. 
CWR.................50 percent. 
LAL.................1. 
Haines Index........2 or very low potential for large plume 
                    dominated fire growth. 
Mixing height.......2900 to 3400 ft agl. 
Transport winds.....Northeast around 25 mph increasing to around 35 
                    mph in the afternoon. 
Smoke dispersal.....Very good. 

$$
Forecaster...KP
Requested by...Great Plains Interagency Dispatch Center
Type of request...WILDFIRE
.TAG 2412533.1/UNR
.DELDT 04/26/24
.FormatterVersion 2.0.0
.EMAIL sdgpc@firenet.gov