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Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Riverton WY
101 AM MDT Fri Aug 17 2018

WYZ001>020-022>030-181330-
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-
101 AM MDT Fri Aug 17 2018

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight.

Isolated to widely scattered late day and night time
thunderstorms; mainly in western Wyoming.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday...Isolated to scattered mainly afternoon showers and
thunderstorms.

Sunday...Isolated afternoon thunderstorms East of the Divide.

Monday through Wednesday...Isolated to locally scattered
thunderstorms.

.SPOTTER INFORMATION STATEMENT...

Spotters are urged to report winds past 45 mph and hail. Thank you.

$$

Hazardous Weather Outlook
National Weather Service Cheyenne WY
1114 PM MDT Thu Aug 16 2018

NEZ002-003-019>021-054-055-095-096-WYZ107-108-180515-
Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne-
North Sioux-South Sioux-East Platte County-Goshen County-
1114 PM MDT Thu Aug 16 2018

This hazardous weather outlook is for portions of western
Nebraska and southeast Wyoming.

.DAY ONE...TONIGHT

Areas of fog possible during the overnight. Visibilities may get
as low as one mile in some places. Any remaining fog should lift
around 9 AM MDT.


.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

Isolated to scattered showers and thunderstorms return this
weekend into early next week. Severe weather is not expected at
this time.

.Spotter information statement...

Spotter activation will not be needed.

$$

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1022 AM MDT Thu Aug 16 2018

COZ030>051-171630-
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-
1022 AM MDT Thu Aug 16 2018

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

.DAY ONE...Today and Tonight

Isolated thunderstorms are expected over the mountains south of
Interstate 70 this afternoon and evening with some possible over
the higher terrain of Grand and Summit counties by the late
afternoon. A few of the storms could produce brief heavy rain,
wind gusts to 40 mph, and small hail. On the plains partly cloudy
skies will prevail with highs reaching into the mid to upper 80s.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Isolated to scattered showers and storms are expected on Friday,
mainly along and south of Interstate 70. A few stronger storms
with hail, gusty winds and heavy rain will be possible mainly over
the Palmer Divide and locations east of Denver.

Saturday will be a more active weather day as an potent upper
level level trough moves over Colorado. Severe weather and very
heavy rain will be possible across the northeastern plains of
Colorado, including the Palmer Divide area and into southern
Lincoln County. There will be an outside chance for severe weather
and heavy rain across the Front Range Urban Corridor including
Metro Denver.

Drier and cooler weather is expected on Sunday with gusty
northerly winds across the far northeastern plains. Monday through
Wednesday should see a gradual warming trend with a few afternoon
and evening showers and storms possible each day.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$

Hazardous Weather Outlook
National Weather Service Grand Junction CO
235 AM MDT Thu Aug 16 2018

COZ001>014-017>023-UTZ022>025-027>029-170845-
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-
235 AM MDT Thu Aug 16 2018

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

.DAY ONE...Today and Tonight

Smoky conditions will continue. Isolated mountain showers and
thunderstorms in the north, scattered in the south, will bring a
chance of wind gusts to 35 mph and local rain showers this
afternoon and evening. Storms will develop over the higher
terrain and produce outflow winds which may reach nearby valleys.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

There is a slight chance of afternoon and evening showers and
thunderstorms each day. Lightning, gusty winds and local heavy
rain showers are possible with these storms.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

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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