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Special Weather Statement


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.

$$

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

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.

$$


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 North Platte NE
1144 AM CDT Mon Aug 21 2017

NEZ004>010-022>029-035>038-056>059-069>071-094-221645-
Sheridan-Eastern Cherry-Keya Paha-Boyd-Brown-Rock-Holt-Garden-
Grant-Hooker-Thomas-Blaine-Loup-Garfield-Wheeler-Arthur-McPherson-
Logan-Custer-Deuel-Keith-Perkins-Lincoln-Chase-Hayes-Frontier-
Western Cherry-
1144 AM CDT Mon Aug 21 2017 /1044 AM MDT Mon Aug 21 2017/

This Hazardous Weather Outlook is for portions of western and
north central Nebraska.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

A cool front will move across western Nebraska through this
evening that will be the focus for a few severe thunderstorms.
The area of concern is to the east of a line from Valentine to
Ogallala. The main threat will be large hail and damaging winds.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

Thursday through Saturday thunderstorms appear possible across
portions of the outlook area, mainly in the afternoon and
evening.However, the risk for severe thunderstorms is low at this
time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed through this evening.

&&
Get your latest weather, hydrological, and climate information
at http://www.weather.gov/northplatte

$$

Keck

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 Rapid City SD
309 AM MDT Mon Aug 21 2017

SDZ002-013-014-031-032-042>044-046-047-049-073-221300-
Perkins-Northern Meade Co Plains-Ziebach-Pennington Co Plains-
Haakon-Oglala Lakota-Jackson-Bennett-Mellette-Todd-Tripp-
Southern Meade Co Plains-
309 AM MDT Mon Aug 21 2017 /409 AM CDT Mon Aug 21 2017/

This Hazardous weather outlook is for portions of south central
South Dakota...and western South Dakota.

.DAY ONE...TODAY AND TONIGHT

Scattered thunderstorms will move across the area today, mainly
this morning. Severe thunderstorms are not expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

$$

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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