347
FNUS73 KUNR 170502
FWSUNR

Spot Forecast for 18 Mile Fire...US Forest Service
National Weather Service Rapid City SD
1102 PM MDT Sun Jun 16 2024

Forecast is based on forecast start time of 2300 MDT on June 16.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...A cool and wet pattern is expected through at least
Tuesday as a strong upper level trof works slowly eastward
through the Northern Rockies and into the Northern Plains. Expect
on and off periods of showers/thunderstorms, with generally
easterly winds through Monday, then northwest winds by Tuesday.
Unsettled weather is likely to continue the rest of the week with
temperatures slowly warming.

.REST OF TONIGHT...

Sky/weather.........Becoming mostly cloudy (60-70 percent). Scattered
                    showers and thunderstorms overnight.
Min temperature.....Around 51.
Max humidity........85 percent.
Wind (20 ft)........East winds around 10 to 20 mph.
CWR.................30 percent.
LAL.................2.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.
Mixing height.......500 to 1000 ft agl.
Transport winds.....East around 30 mph.
Smoke dispersal.....Poor.

.MONDAY...

Sky/weather.........Mostly cloudy (70-80 percent). Slight chance of
                    showers and thunderstorms.
Max temperature.....Around 64.
Min humidity........71 percent.
Wind (20 ft)........East winds around 15 mph with gusts to around
                    25 mph.
CWR.................0 percent.
LAL.................2.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Mixing height.......1000 to 1500 ft agl.
Transport winds.....East 25 to 30 mph.
Smoke dispersal.....Poor.

.MONDAY NIGHT...

Sky/weather.........Mostly cloudy (50-60 percent). Rain showers
                    likely and chance of thunderstorms in the
                    evening, then slight chance of showers and
                    thunderstorms overnight.
Min temperature.....Around 53.
Max humidity........90 percent.
Wind (20 ft)........Northeast winds 10 to 15 mph shifting to the
                    northwest overnight. Gusts up to 25 mph.
CWR.................40 percent.
LAL.................3 until 2400, then 2.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.
Mixing height.......500 to 1000 ft agl.
Transport winds.....Northeast around 20 mph shifting to the
                    northwest around 30 mph overnight.
Smoke dispersal.....Poor.

$$
Forecaster...JJ
Requested by...Ethan Green
Type of request...WILDFIRE
.TAG 2416271.0/UNR
.DELDT 06/16/24
.FormatterVersion 2.0.0
.EMAIL ethan.green@usda.gov