000
FNUS73 KUNR 260246
FWSUNR

Spot Forecast for Rim Rock...Forest Service
National Weather Service Rapid City SD
846 PM MDT Thu Apr 25 2024

Forecast is based on forecast start time of 2100 MDT on April 25.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Dry weather is expected tonight. Expect northerly
winds of 5 to 10 mph. Humidity recovery will be excellent
tonight. Chances for showers will increase Friday morning and
persist into Saturday. A thunderstorm is also possible. Rainfall
amounts are expected to be relatively light Friday and Friday
night. Northerly winds will increase Friday afternoon, with gusts
to around 25 mph. Any additional rainfall on Saturday is expected
to be light as well.

.REST OF TONIGHT...

Sky/weather.........Mostly cloudy (75-85 percent).
Min temperature.....Around 48.
Max humidity........89 percent.
Wind (20 ft)........Northerly winds 5 to 10 mph.
CWR.................0 percent.
LAL.................2 until 2400, then 1.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Mixing height.......500 to 1000 ft agl.
Transport winds.....East around 15 mph shifting to the north
                    overnight.
Smoke dispersal.....Poor.

.FRIDAY...

Sky/weather.........Cloudy (90-100 percent). Chance of rain
                    showers through the day. Chance of
                    thunderstorms in the afternoon.
Max temperature.....Around 60.
Min humidity........55 percent.
Wind (20 ft)........Light and variable winds becoming north at
                    15 to 20 mph with gusts to around
                    25 mph by afternoon. Gusty and erratic
                    winds expected near thunderstorms in the
                    afternoon.
CWR.................35 percent.
LAL.................3.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Mixing height.......4500 to 5000 ft agl.
Transport winds.....Northwest around 20 mph increasing to north
                    around 30 mph in the afternoon.
Smoke dispersal.....Very good.

.FRIDAY NIGHT...

Sky/weather.........Mostly cloudy (65-75 percent). Chance of rain
                    showers and slight chance of thunderstorms in
                    the evening, then slight chance of rain showers
                    overnight.
Min temperature.....Around 44.
Max humidity........93 percent.
Wind (20 ft)........North winds 10 to 20 mph. Gusts up to 26 mph in
                    the evening. Gusty and erratic winds expected
                    near thunderstorms in the evening.
CWR.................20 percent.
LAL.................2 until 2400, then 1.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.
Mixing height.......700 to 1200 ft agl.
Transport winds.....North 15 to 20 mph.
Smoke dispersal.....Poor.

.SATURDAY...

Sky/weather.........Mostly cloudy (75-85 percent). Rain showers
                    likely in the morning, then rain showers in the
                    afternoon.
Max temperature.....Around 48.
Min humidity........68 percent.
Wind (20 ft)........Breezy. Northeast winds 10 to 25 mph increasing
                    to around 25 mph in the afternoon.
CWR.................50 percent.
LAL.................1.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.
Mixing height.......3000 to 3500 ft agl.
Transport winds.....Northeast 25 to 35 mph.
Smoke dispersal.....Very good.

$$
Forecaster...JC
Requested by...Great Plains Interagency Dispatch Center
Type of request...WILDFIRE
.TAG 2412533.0/UNR
.DELDT 04/25/24
.FormatterVersion 2.0.0
.EMAIL sdgpc@firenet.gov