Special Weather Statement
Issued by NWS Riverton, WY

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13
000
WWUS85 KRIW 202033
SPSRIW

Special Weather Statement
National Weather Service Riverton WY
233 PM MDT Fri Oct 20 2017

WYZ022-210200-
Casper Mountain-
233 PM MDT Fri Oct 20 2017

...Strong winds with low relative humidity today...

Ahead of a Pacific low pressure trough, strong winds are expected
today continuing through early this evening. Southwest winds of
25 to 35 mph with gusts 45 to 60 mph are expected. Relative
humidity is expected to drop to 25 to 30 percent this afternoon.

Outdoor burning is highly discouraged!

$$

WYZ016>018-210200-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Including the cities of Dubois, Riverton, Shoshoni, and Lander
233 PM MDT Fri Oct 20 2017

...Strong winds with low relative humidity today...

Ahead of a Pacific low pressure trough, strong winds are expected
today continuing through early this evening. Southwest winds of
15 to 25 mph with gusts 30 to 40 mph are expected. Relative
humidity is expected to drop to 20 to 25 percent in the afternoon.

Travel with light weight and high profile trailers may become
difficult. Outdoor burning is highly discouraged!

$$

WYZ003-210200-
Cody Foothills-
Including the cities of Cody and Meeteetse
233 PM MDT Fri Oct 20 2017

...Strong winds with low relative humidity today...

Ahead of a Pacific low pressure trough, strong winds are expected
today continuing through early this evening. Southwest winds of
15 to 30 mph with gusts 35 to 45 mph are expected. Local wind
gusts to 55 mph may occur around Clark late this afternoon or
early evening. Relative humidity is expected to drop to 20 to 25
percent in the afternoon.

Travel with light weight and high profile trailers may become
difficult. Outdoor burning is highly discouraged!

$$

WYZ010-011-210200-
Northeast Johnson County-Southeast Johnson County-
Including the cities of Buffalo and Kaycee
233 PM MDT Fri Oct 20 2017

...Gusty winds with low relative humidity today...

Ahead of a Pacific low pressure trough, gusty winds are expected
today continuing through early this evening. Southwest winds of
15 to 25 mph with gusts 30 to 35 mph are expected...possibly
higher with frontal passage later tonight. Relative humidity is
expected to drop to 17 to 23 percent in the afternoon.

Outdoor burning is highly discouraged!

$$

WYZ028>030-210200-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
Including the cities of Rock Springs, Green River, and Wamsutter
233 PM MDT Fri Oct 20 2017

...Strong winds with low relative humidity today...

Ahead of a Pacific low pressure trough, strong winds are expected
today continuing through this evening. Southwest winds of 15 to
35 mph with gusts to 45 mph are expected. Local wind gusts to 50
mph may occur from Bitter Creek to Wamsutter. Relative humidity is
expected to drop to 20 to 25 percent in the afternoon.

Travel with light weight and high profile trailers may become
difficult. Outdoor burning is highly discouraged!

$$

WYZ001-012-013-210200-
Yellowstone National Park-Teton and Gros Ventre Mountains-
Jackson Hole-
Including the cities of Lake, Mammoth, Old Faithful, and Jackson
233 PM MDT Fri Oct 20 2017

...Snow with gusty winds later this afternoon and tonight...

A Pacific low pressure trough is expected to bring areas of
light to moderate snow showers to the mountains this afternoon
and night.

Snowfall of 3 to 6 inches is expected above 8500 feet with areas
of 6 to 10 inches above 9500 feet. The snow level will fall into
the valleys during the evening with 1 to 3 inches possible below
8500 feet.

The snow showers will be accompanied by west winds gusting 15 to
30 mph with occasional gusts to 40 mph or higher on the passes
and higher ridges.

Hunters, campers and climbers should be prepared for snow and
strong gusty winds.

$$

WYZ002-210200-
Absaroka Mountains-
233 PM MDT Fri Oct 20 2017

...Snow with strong gusty winds this afternoon and tonight...

A Pacific low pressure trough is expected to bring areas of
light to moderate snow showers to the mountains, developing this
afternoon and becoming more widespread tonight.

Snowfall of 1 to 3 inches is expected above 8500 feet with areas
of 3 to 5 inches above 9500 feet. The snow level will fall into
the valleys during the evening with 1 to 2 inches possible below
8500 feet.

The snow showers will be accompanied by strong west winds of 30
to 40 mph with gusts to 50 mph on the passes and higher ridges.

Hunters, campers and climbers should be prepared for snow and
strong gusty winds.

$$

WYZ015-210200-
Wind River Mountains East-
233 PM MDT Fri Oct 20 2017

...Snow with strong winds this afternoon and tonight...

A Pacific low pressure trough is expected to bring areas of
light to moderate snow showers to the mountains this afternoon
and tonight.

Snowfall of 2 to 4 inches is expected above 8500 feet with areas
of 4 to 7 inches above 9500 feet. The snow level will fall into
the valleys during the evening with 1 to 2 inches possible below
8500 feet. The higher amounts will occur on the northern end of
the range.

The snow showers will be accompanied by strong west winds of 20
to 40 mph with gusts to 50 mph on the passes and higher ridges.

Hunters, campers and climbers should be prepared for snow and
strong gusty winds.

$$

WYZ014-025-026-210200-
Wind River Mountains West-Upper Green River Basin Foothills-
Upper Green River Basin-
Including the cities of Pinedale, La Barge, Big Piney, and Farson
233 PM MDT Fri Oct 20 2017

...Snow with strong winds this afternoon and tonight...

A Pacific low pressure trough is expected to bring areas of
light to moderate snow showers to the mountains, developing this
afternoon and tonight.

Snowfall of 2 to 4 inches is expected above 8500 feet with areas
of 4 to 7 inches above 9500 feet. The snow level will fall into
the valleys during the evening with up to 1 inch possible below
8500 feet.

The snow showers will be accompanied by strong west winds of 20
to 30 mph with gusts to 40 mph on the passes and higher ridges.

Hunters, campers and climbers should be prepared for snow and
strong gusty winds.

$$

WYZ023-024-027-210200-
Star Valley-Salt River and Wyoming Ranges-South Lincoln County-
Including the cities of Afton, Alpine, Star Valley Ranch, Thayne,
Kemmerer, and Cokeville
233 PM MDT Fri Oct 20 2017

...Snow with gusty winds this afternoon and tonight...

A Pacific low pressure trough is expected to bring areas of
light to moderate snow showers to the mountains, developing this
afternoon and tonight.

Snowfall of 3 to 6 inches is expected above 8500 feet. The snow
level will fall into the valleys during the evening with up to 1
inch possible below 8500 feet.

The snow showers will be accompanied by gusty west winds of 15 to
25 mph with gusts 30 to 45 mph on the passes and higher ridges.

Hunters, campers and climbers should be prepared for snow and
strong gusty winds.

$$

WYZ007-210200-
Owl Creek and Bridger Mountains-
233 PM MDT Fri Oct 20 2017

...Strong winds with low relative humidity today...

Ahead of a Pacific low pressure trough, strong winds are expected
today continuing through this evening. Southwest winds of 15 to
30 mph with gusts to 45 mph are expected. Relative humidity is
expected to drop to 25 to 30 percent in the afternoon.

Travel with light weight and high profile trailers may become
difficult. Outdoor burning is highly discouraged!

$$

WYZ008-009-210200-
Bighorn Mountains West-Bighorn Mountains Southeast-
233 PM MDT Fri Oct 20 2017

...Strong winds with low relative humidity today...

Ahead of a Pacific low pressure trough, strong winds are expected
today continuing through this evening. Southwest winds of 15 to
30 mph with gusts 35 to 45 mph are expected. Relative humidity is
expected to drop to 25 to 35 percent in the afternoon.

Travel with light weight and high profile trailers may become
difficult. Outdoor burning is highly discouraged!

$$

WYZ004>006-210200-
North Big Horn Basin-Southwest Big Horn Basin-
Southeast Big Horn Basin-
Including the cities of Thermopolis and Worland
233 PM MDT Fri Oct 20 2017

...Gusty winds with low relative humidity today...

Ahead of a Pacific low pressure trough, gusty winds are expected
today continuing through this evening. Southwest winds of 15 to
25 mph with gusts 30 to 35 mph are expected. Relative humidity is
expected to drop to 20 to 25 percent in the afternoon.

Outdoor burning is highly discouraged!

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.