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000
FNUS75 KRIW 262330
FWSRIW

Spot Forecast for Teton National Park...Teton National Park
National Weather Service Riverton WY
430 PM MST Fri Feb 26 2021

Forecast is based on forecast start time of 1540 MST on February 26.
If conditions become unrepresentative...contact the National Weather
Service.

...WINTER STORM WARNING IN EFFECT UNTIL 6 AM MST SATURDAY...

.DISCUSSION...

Winds will continue from the south through this evening, and will
gradually decrease through the evening. One surge of winds is
still possible this evening as the cold front is currently
sweeping across southeast Idaho, and is expected to reach western
Wyoming around 6pm. This surge would be accompanied by a brief
period of winds reaching 25 to 30, with some gusts to 45. The
front would be accompanied by a period of moderate to heavy
snowfall as well. It is possible this wave may be deflected into
Lincoln County, which would result in continuing lighter winds
across Jackson Hole and GTNP.

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

FORECASTER...Straub

.REST OF TODAY...

Sky/weather.........Cloudy (90-100 percent). Patchy blowing snow
                    late in the afternoon. Snow late in the
                    afternoon. Snow showers late in the afternoon.
Max temperature.....23-26.
Min humidity........56-59 percent.

TIME (MST)      3PM 4PM 5PM
Sky (%).........91  96  100
Weather cov.....DEF DEF DEF
Weather type....SN  SW  SW
Tstm cov........
Temp............22  23  23
RH..............81  77  77
Surface wnd dir.S   S   S
Surface wnd spd.16  16  11
Surface wnd gst.29  29  20

.TONIGHT...

Sky/weather.........Cloudy (80-90 percent). Snow showers in the
                    evening. Numerous snow showers late in the
                    evening, then scattered snow showers after 3
                    am. Patchy blowing snow in the evening.
Min temperature.....Around 10 above.
Max humidity........78-81 percent.

TIME (MST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........100 100 100 100 100 81  79  79  79  79  79  70
Weather cov.....DEF DEF DEF DEF DEF NUM NUM NUM NUM SCT SCT SCT
Weather type....SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
Tstm cov........
Temp............21  20  19  18  17  18  15  15  13  12  11  11
RH..............77  77  74  77  73  70  77  77  80  80  76  73
Surface wnd dir.S   S   S   S   S   S   S   S   S   S   S   S
Surface wnd spd.8   6   10  14  15  13  11  11  6   5   4   5
Surface wnd gst.15  10  19  25  26  21  20  20  10  9   6   9


$$
Forecaster...Straub
Requested by...Teton National Park
Type of request...OTHER
.TAG 2103201.0/RIW
.DELDT 02/26/21
.EMAIL grte_dispatch@nps.gov