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Special Weather Statement


Special Weather Statement
National Weather Service Riverton WY
1233 AM MDT Mon Aug 21 2017

WYZ008>011-020-022-212200-
Bighorn Mountains West-Bighorn Mountains Southeast-
Northeast Johnson County-Southeast Johnson County-
Natrona County Lower Elevations-Casper Mountain-
Including the cities of Buffalo, Kaycee, and Casper
1233 AM MDT Mon Aug 21 2017

...Elevated Fire Conditions Continue Today...

Elevated fire weather conditions can be expected for all of
central and northern Wyoming today as relative humidity drops
into the mid and upper teens across the lower elevations and the
upper teens to around 35 percent in the mountains. Winds will be
north to northeast 10 to 15 mph with occasional afternoon gusts
20 to 25 mph across Natrona County...and northeast 5 to 15 mph
with occasional gusts to 20 mph over Johnson County. Residents,
travellers, and campers this weekend are encouraged to take strong
caution if considering any type of burning activities. Please
follow local burning rules. In addition, In addition, do not drive
off the area roadways as dry vegetation could easily catch on
fire.

$$

Special Weather Statement
National Weather Service Riverton WY
1233 AM MDT Mon Aug 21 2017

WYZ001-002-012>015-212200-
Yellowstone National Park-Absaroka Mountains-
Teton and Gros Ventre Mountains-Jackson Hole-
Wind River Mountains West-Wind River Mountains East-
Including the cities of Lake, Mammoth, Old Faithful, and Jackson
1233 AM MDT Mon Aug 21 2017

...Elevated Fire Conditions Continue Today...

Elevated fire weather conditions can be expected for all of the
northwest quadrant of Wyoming this today as relative humidity
drops into the mid teens across the valleys...and the upper teens
to around 30 percent in the mountains. Winds will be west 10 to
15 mph with occasional afternoon gusts 20 to 25 mph across the
mountains. Residents, travellers, and campers today are
encouraged to take strong caution if considering any type of
burning activities. Please follow local burning rules. In
addition, do not drive off the area roadways as dry vegetation
could easily catch on fire.

$$

Special Weather Statement
National Weather Service Riverton WY
1233 AM MDT Mon Aug 21 2017

WYZ003>007-016>018-212200-
Cody Foothills-North Big Horn Basin-Southwest Big Horn Basin-
Southeast Big Horn Basin-Owl Creek and Bridger Mountains-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Including the cities of Cody, Meeteetse, Thermopolis, Worland,
Dubois, Riverton, Shoshoni, and Lander
1233 AM MDT Mon Aug 21 2017

...Elevated Fire Conditions Continue Today...

Elevated fire weather conditions can be expected for all of
central and northern Wyoming today as relative humidity drops
into the mid teens across the lower elevations...to near 25
percent in the Cody Foothills. Winds will be north to northeast 5
to 15 mph with occasional afternoon gusts to 20 mph. Residents,
travellers, and campers this weekend are encouraged to take strong
caution if considering any type of burning activities. Please
follow local burning rules. In addition, do not drive off the area
roadways as dry vegetation could easily catch on fire.

$$

Special Weather Statement
National Weather Service Riverton WY
1233 AM MDT Mon Aug 21 2017

WYZ019-023>030-212200-
Green Mountains and Rattlesnake Range-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
Including the cities of Jeffrey City, Afton, Alpine,
Star Valley Ranch, Thayne, Pinedale, La Barge, Big Piney, Farson,
Kemmerer, Cokeville, Rock Springs, Green River, and Wamsutter
1233 AM MDT Mon Aug 21 2017

...Elevated Fire Conditions Continue Today...

Elevated fire weather conditions can be expected for all of the
southwest quadrant in addition to south central Wyoming this
afternoon and evening. Relative humidity will be in the teens this
afternoon and evening across the lower elevations...and the upper
teens to around 30 percent in the mountains. Winds will be west
to northwest 10 to 20 mph with occasional afternoon gusts to 25
mph. Residents, travellers, and campers today are encouraged to
take strong caution if considering any type of burning activities.
Please follow local burning rules. In addition, do not drive off
the area roadways as dry vegetation could easily catch on fire.

$$


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1055 AM MDT Mon Aug 21 2017

COZ030>051-221700-
Jackson County Below 9000 Feet-
West Jackson and West Grand Counties Above 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Central and Southeast Park County-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
1055 AM MDT Mon Aug 21 2017

This hazardous weather outlook is for northeast and north central
Colorado.

.DAY ONE...Today and Tonight

Isolate thunderstorms will develop this afternoon, mainly along
and south of Interstate 70. A stronger storm or two with heavy
rain and some hail is possible over the far eastern plains where
more moisture and instability exists.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Patchy fog and low clouds will be possible early Tuesday morning
following a cold front. Thunderstorms will increase in coverage
each day Tuesday through Thursday as more subtropical moisture
pushes into the area. Thursday could see locally heavy rainfall
from some of the storms. Friday through Sunday will be drier but
isolated late day storms are still possible, especially over the
higher terrain.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$

Gimmestad/RJK

Hazardous Weather Outlook
National Weather Service Salt Lake City UT
951 AM MDT Mon Aug 21 2017

UTZ001>016-019>021-517-518-WYZ021-221600-
Cache Valley/Utah Portion-Northern Wasatch Front-
Salt Lake and Tooele Valleys-Southern Wasatch Front-
Great Salt Lake Desert and Mountains-Wasatch Mountain Valleys-
Wasatch Mountains I-80 North-Wasatch Mountains South of I-80-
Western Uinta Mountains-Wasatch Plateau/Book Cliffs-
Western Uinta Basin-Castle Country-San Rafael Swell-
Sanpete/Sevier Valleys-West Central Utah-Southwest Utah-
Utahs Dixie and Zion National Park-South Central Utah-
Glen Canyon Recreation Area/Lake Powell-Central Mountains-
Southern Mountains-Southwest Wyoming-
951 AM MDT Mon Aug 21 2017

This Hazardous Weather Outlook is for the western two thirds of
Utah and southwest Wyoming.

.DAY ONE...Today and Tonight

Locally heavy rains are possible across far southern Utah, with
the potential for localized flash flooding in the flood prone
areas of far southern Utah.

Thunderstorms across central and portions of southern Utah may
locally contain wind gusts in the 35-45 mph range.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Shower and thunderstorm activity will increase in areal coverage
and expand northward as moisture pushes north across the outlook
area. Showers and storms will concentrate across northern Utah
late Tuesday night and Wednesday.

Drier air working into southern Utah midweek will bring a
decrease
in shower and thunderstorm activity through the upcoming weekend.
These showers and stroms will also show a decreasing trend across
the remainder of the outlook area through the weekend.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

$$

Rogowski

For more information from NOAA/s National Weather Service visit...
http://weather.gov/saltlakecity

For information on potential road travel impacts visit...
http://www.udottraffic.utah.gov/roadweatherforecast.aspx

Hazardous Weather Outlook
National Weather Service Cheyenne WY
815 AM MDT Mon Aug 21 2017

NEZ002-003-019>021-054-055-095-096-221415-
Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne-
North Sioux-South Sioux-
815 AM MDT Mon Aug 21 2017

This hazardous weather outlook is for portions of western
Nebraska.

.DAY ONE...TODAY AND TONIGHT

Areas of fog, locally dense along the North Platte Valley, will
linger until later this morning. Visibilties will range from as
low as a half mile along the North Platte Valley to five miles.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

Chances of thunderstorms will return to the region by the middle
of the week.  Severe storms are not expected.

.Spotter information statement...

Spotter activation will not be needed.

$$

Hazardous Weather Outlook
National Weather Service GRAND JUNCTION CO
431 AM MDT Mon Aug 21 2017

COZ001>014-017>023-UTZ022>025-027>029-221045-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-
Upper Gunnison River Valley-Uncompahgre Plateau and Dallas Divide-
Northwest San Juan Mountains-Southwest San Juan Mountains-
Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
431 AM MDT Mon Aug 21 2017

This hazardous weather outlook is for eastern Utah and western
Colorado.

.DAY ONE...Today and Tonight

Isolated to scattered showers and thunderstorms are possible over
the mountains today. Outflow winds to 40 mph and lightning will
be the main impacts.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Moisture is expected to increase northward toward the Wyoming
border by midweek before drying sets in next weekend.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

Hazardous Weather Outlook
National Weather Service Riverton WY
254 AM MDT Mon Aug 21 2017

WYZ001>020-022>030-221100-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Big Horn Basin-Southwest Big Horn Basin-
Southeast Big Horn Basin-Owl Creek and Bridger Mountains-
Bighorn Mountains West-Bighorn Mountains Southeast-
Northeast Johnson County-Southeast Johnson County-
Teton and Gros Ventre Mountains-Jackson Hole-
Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
254 AM MDT Mon Aug 21 2017

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight

Elevated fire weather conditions today due to very dry conditions
across Wyoming.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Tuesday...Isolated gusty thunderstorms across the south and southwest.

Wednesday through Friday...Isolated to widely scattered
afternoon and evening thunderstorms. Some stronger thunderstorms
possible across the north on Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

$$

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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