506
FNUS75 KRIW 271516
FWSRIW

Spot Forecast for S130 practical...Sublette County unified Fire
National Weather Service Riverton WY
916 AM MDT Sat Apr 27 2024

Forecast is based on ignition time of 1000 MDT on April 27.
If conditions become unrepresentative, contact the National Weather
Service

.DISCUSSION...

Isolated rain showers this morning into late afternoon before
chances diminish there after into the evening and overnight hours.
Total precipitation accumulation expected up to .1 inches of
liquid rain with its sporadic nature. Southeast winds 10-20 mph
throughout the afternoon before diminishing to around 10 mph or
less after sunset and overnight into Sunday morning. Cloudy skies
this afternoon before becoming mostly cloudy overnight with more
sun than clouds expected for Sunday. Temperatures into the 50s
this afternoon dropping into the 20s overnight with similar
conditions for Sunday. Relative humidity will remain elevated due
to the ample moisture and precipitation.

...Thunderstorms imply strong gusty and erratic winds...
...Haines index is high level haines both day and night...

.REST OF TODAY...

Sky/weather.........Cloudy (85-95 percent). Scattered rain showers.
CWR.................7 percent.
Chance of pcpn......50 percent.
LAL.................1.
Max temperature.....Around 50.
Min humidity........46 percent.
Wind (20 ft)........Southeast winds 10 to 13 mph with gusts to
                    around 19 mph.
Ridgetop wind.......Southeast around 20 mph.
Mixing height.......2000 ft AGL increasing to 3800 ft AGL in the
                    afternoon.
Transport winds.....East 18 to 21 mph.
Smoke dispersal.....Poor (35300 knot-ft) early in the morning
                    increasing to good (61600 knot-ft) in the
                    afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

TIME (MDT)      10 AM     1 PM      4 PM
Sky (%).........90        95        91
Weather cov.....SCTTRD    SCTTRD    SCTTRD
Weather type....RNSHWR    RNSHWR    RNSHWR
Tstm cov........
CWR.............10        10        10
Chc of pcpn (%).40        50        50
LAL.............1         1         1
Temp............42        45        50
RH..............73        60        46
20 FT wind......SE 13G19  SE 11G17  SE 10G16
Ridgetop wind...SE 20     SE 20     SE 20
Mix hgt (ft)....2000      3200      3800
Transport wind..SE 21     E 20      E 18
Haines index....2         2         2
SDspl kt-ft/100035        54        62

.FORECAST DAYS 3 THROUGH 5...
.MONDAY...
Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 20s. Highs in the mid 50s. West
winds around 11 mph.
.TUESDAY...
Partly cloudy. Slight chance of showers and snow showers. Lows in
the lower 20s. Highs around 50. West winds around 14 mph.
.WEDNESDAY...
Mostly cloudy. Slight chance of showers and snow showers. Lows in
the mid 20s. Highs around 50. Northwest winds around 9 mph.

$$
Forecaster...Lowe
Requested by...Justin Hamilton
Type of request...PRESCRIBED
.TAG 2412603.0/RIW
.DELDT 04/27/24
.FormatterVersion 2.0.0
.EMAIL justin.hamilton@sublettefire.com