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Special Weather Statement


Special Weather Statement
National Weather Service Riverton WY
117 AM MST Fri Dec 15 2017

WYZ014-025-026-152200-
Wind River Mountains West-Upper Green River Basin Foothills-
Upper Green River Basin-
Including the cities of Pinedale, La Barge, Big Piney, and Farson
117 AM MST Fri Dec 15 2017

...Snow and colder temperatures for Sublette county tonight and
Saturday...

Snow will spread east into Sublette County this evening becoming
widespread by late evening. Snowfall is expected to continue
through Saturday with snow accumulations of 4 to 6 inches in the
mountains and 3 inches to then than an inch in the lower
elevations.

$$

Special Weather Statement
National Weather Service Riverton WY
117 AM MST Fri Dec 15 2017

WYZ002-003-005-007-152200-
Absaroka Mountains-Cody Foothills-Southwest Big Horn Basin-
Owl Creek and Bridger Mountains-
Including the cities of Cody, Meeteetse, and Thermopolis
117 AM MST Fri Dec 15 2017

...Snow and colder temperatures for Park and Hot Springs counties
tonight and Saturday...

Snow will spread south into Park and Hot Springs Counties late
tonight becoming widespread by Saturday morning. Snowfall is
expected to continue through Saturday with snow accumulations of 4
to 8 inches in the mountains and 1 to 3 inches in the lower
elevations.

Travel may become difficult on Chief Joseph Highway and through
the Wind River Canyon.

$$

Special Weather Statement
National Weather Service Riverton WY
117 AM MST Fri Dec 15 2017

WYZ020-022-152200-
Natrona County Lower Elevations-Casper Mountain-
Including the city of Casper
117 AM MST Fri Dec 15 2017

...Snow and colder temperatures for Natrona county Saturday and
Saturday night...

Snow will spread south into Natrona county Saturday morning
becoming widespread by Saturday afternoon. Snowfall is expected
to continue through Saturday night with snow accumulations of 4
to 6 inches on Casper mountain and 3 to 4 inches in the lower
elevations.

Travel may become difficult on Casper mountain. Expect Slick icy
and snow packed pavement with low visibility on Interstate 25 and
Highways 26, and 220.

$$

Special Weather Statement
National Weather Service Riverton WY
117 AM MST Fri Dec 15 2017

WYZ019-152200-
Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
117 AM MST Fri Dec 15 2017

...Snow and colder temperatures for the Green Mountains and
Rattlesnake Range Saturday and Saturday night...

Snow will spread south into the Green Mountains and Rattlesnake
Range Saturday morning becoming widespread by Saturday afternoon.
Snowfall is expected to continue through Saturday night with snow
accumulations of 4 to 6 inches in the mountains and 3 to 4 inches
in the lower elevations.

Travel may become difficult on Beaver Rim. Expect Slick icy and
snow packed pavement with low visibility on Highway 287.

$$

Special Weather Statement
National Weather Service Riverton WY
117 AM MST Fri Dec 15 2017

WYZ028>030-152200-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
Including the cities of Rock Springs, Green River, and Wamsutter
117 AM MST Fri Dec 15 2017

...Snow and colder temperatures for Sweetwater county late
morning Saturday and Saturday night...

Snow will spread south and east into Sweetwater county late Saturday
morning becoming widespread by Saturday afternoon. Snowfall is
expected to continue through Saturday night with snow accumulations
of 1 to 3 inches east of Green River with an inch or less west of
Green River.

Expect Slick icy and snow packed pavement with low visibility on
Interstate 80 from Green River to Wamsutter.

$$

TEAM RIVERTON

Special Weather Statement
National Weather Service Riverton WY
117 AM MST Fri Dec 15 2017

WYZ012-013-152200-
Teton and Gros Ventre Mountains-Jackson Hole-
Including the city of Jackson
117 AM MST Fri Dec 15 2017

...Snow and colder temperatures for Teton county tonight and
Saturday...

Snow will spread east into Teton County this evening becoming
widespread by late evening. Snowfall is expected to continue
through Saturday with snow accumulations of 4 to 8 inches in the
mountains and 2 to 3 inches in the valleys.

Travel may become difficult on Teton and Togwotee passes.

$$

Special Weather Statement
National Weather Service Riverton WY
117 AM MST Fri Dec 15 2017

WYZ001-152200-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
117 AM MST Fri Dec 15 2017

...Snow and colder temperatures for Yellowstone National Park
tonight and Saturday...

Snow will spread east into Yellowstone National Park this
evening becoming widespread by late evening. Snowfall is expected
to continue through Saturday with snow accumulations of 3 to 5
inches in the mountains and 2 to 3 inches in the valleys.

$$

Special Weather Statement
National Weather Service Riverton WY
117 AM MST Fri Dec 15 2017

WYZ015>018-152200-
Wind River Mountains East-Upper Wind River Basin-Wind River Basin-
Lander Foothills-
Including the cities of Dubois, Riverton, Shoshoni, and Lander
117 AM MST Fri Dec 15 2017

...Snow and colder temperatures for Fremont county Saturday and
Saturday night...

Snow will spread south and east into Fremont county Saturday
morning becoming widespread by Saturday afternoon. Snowfall is
expected to continue through Saturday night with snow accumulations
of 4 to 8 inches in the mountains and 1 to 4 inches in the lower
elevations.

Travel may become difficult on South Pass and Beaver Rim. Expect
Slick icy and snow packed pavement with low visibility on
Highways 26, 789 and 287.

$$

Special Weather Statement
National Weather Service Riverton WY
117 AM MST Fri Dec 15 2017

WYZ023-024-027-152200-
Star Valley-Salt River and Wyoming Ranges-South Lincoln County-
Including the cities of Afton, Alpine, Star Valley Ranch, Thayne,
Kemmerer, and Cokeville
117 AM MST Fri Dec 15 2017

...Snow and colder temperatures for Lincoln county tonight and
Saturday...

Snow will spread east into Lincoln County this evening becoming
widespread by late evening. Snowfall is expected to continue
through Saturday with snow accumulations of 4 to 6 inches in the
mountains and 1 to 3 inches in the valleys.

Travel may become difficult on Salt River pass.

$$

Special Weather Statement
National Weather Service Riverton WY
117 AM MST Fri Dec 15 2017

WYZ009>011-152200-
Bighorn Mountains Southeast-Northeast Johnson County-
Southeast Johnson County-
Including the cities of Buffalo and Kaycee
117 AM MST Fri Dec 15 2017

...Snow and colder temperatures for Johnson county early Saturday
into Saturday evening...

Snow will spread south into Johnson county late tonight becoming
widespread by Saturday morning. Snowfall is expected to continue
through Saturday with snow accumulations of 4 to 10 inches in the
mountains and 2 to 4 inches in the lower elevations.

Travel may become difficult on Powder River pass.  Expect
Slick icy and snow packed pavement with low visibility on
Interstates 25 and 90.

$$

Special Weather Statement
National Weather Service Riverton WY
117 AM MST Fri Dec 15 2017

WYZ004-006-008-152200-
North Big Horn Basin-Southeast Big Horn Basin-
Bighorn Mountains West-
Including the city of Worland
117 AM MST Fri Dec 15 2017

...Snow and colder temperatures for Big Horn and Washakie
counties early Saturday into Saturday evening...

Snow will spread south into Big Horn and Washakie counties early
Saturday morning becoming widespread by Saturday afternoon.
Snowfall is expected to continue through Saturday evening with
snow accumulations of 4 to 8 inches in the mountains and 1 to 3
inches in the lower elevations.

Travel may become difficult on Powder River Pass.  Expect Slick
icy and snow packed pavement with low visibility.

$$

Special Weather Statement
National Weather Service Des Moines IA
117 AM CST Fri Dec 15 2017

IAZ035-036-046>050-059>062-072>075-083>086-150900-
Webster-Hamilton-Greene-Boone-Story-Marshall-Tama-Dallas-Polk-
Jasper-Poweshiek-Madison-Warren-Marion-Mahaska-Clarke-Lucas-
Monroe-Wapello-
Including the cities of Fort Dodge, Webster City, Jefferson,
Boone, Ames, Marshalltown, Tama, Toledo, Traer, Dysart,
Gladbrook, Perry, Waukee, Adel, Des Moines, Newton, Grinnell,
Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella,
Knoxville, Oskaloosa, Osceola, Chariton, Albia, and Ottumwa
117 AM CST Fri Dec 15 2017

...Area of Freezing Drizzle Continues to Cause Slick Spots Across
Central and Southern Iowa...

An area of freezing drizzle mixed with some flurries continues to
move southeastward across portions of central and southern Iowa.
The freezing drizzle may cause slick spots on roads, and is
expected to continue through 3 am. Please use caution when
traveling across the area tonight. Slow down and leave extra space
between you and the vehicle ahead of you. Walking surfaces will
also be slick. Check local road conditions before heading out.

$$

MJB

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TIYAN GU
1153 AM ChST Fri Dec 15 2017

PMZ161-171-172-152300-
KOROR PALAU-YAP-CHUUK-
1153 AM ChST Fri Dec 15 2017

...INCLEMENT WEATHER ACROSS WESTERN MICRONESIA...

A TROPICAL DISTURBANCE IS CENTERED SOUTHWEST OF CHUUK AT 3N150E
OR ABOUT 350 MILES SOUTHWEST OF CHUUK AND 925 MILES SOUTHEAST OF
YAP. ALSO...MOIST SOUTHWEST MONSOON WINDS ARE CAUSING HAZARDOUS
SURF AND SHOWERY WEATHER OVER THE REPUBLIC OF PALAU.

AREAS OF SHOWERS AND ISOLATED THUNDERSTORMS ARE OVER MUCH OF
PALAU AND SOUTHEASTERN YAP STATE AND WESTERN AND SOUTHERN PARTS
OF CHUUK STATE.

THE DISTURBANCE IS MOVING SLOWLY TOWARD WEST OR WEST-NORTHWEST
AND IT COULD FURTHER DEVELOP DURING THE NEXT FEW DAYS. SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS WILL CONTINUE TO SPREAD OVER
YAP STATE AND PALAU THROUGH THIS WEEKEND.

WINDS AND SEAS WILL NEED TO BE MONITORED THROUGH THE NEXT FEW
DAYS IN CASE HAZARDOUS CONDITIONS DEVELOP NEAR THE DISTURBANCE.

IF YOU ARE OPERATING SMALL BOATS OR PLANNING INTER-ISLAND TRAVEL
OR OUTDOOR ACTIVITY...BE AWARE OF THE CURRENT MARINE AND WEATHER
CONDITIONS. STAY INFORMED ON THE LATEST FORECASTS AND ADVISORIES
ISSUED BY THE NATIONAL WEATHER SERVICE AND YOUR LOCAL WEATHER
SERVICE AND EMERGENCY MANAGEMENT OFFICES.

PRODUCTS ISSUED BY THE NATIONAL WEATHER SERVICE ARE POSTED ON THE
WFO GUAM WEB PAGE AT WWW.PRH.NOAA.GOV/GUAM/.

$$

SIMPSON

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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