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Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Riverton WY
154 AM MDT Thu Jun 20 2019

WYZ001>020-022>030-211300-
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-
154 AM MDT Thu Jun 20 2019

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight

Isolated mainly afternoon and evening thunderstorms, especially in
northern Wyoming and eastern Sweetwater County.

Elevated fire behavior possible in southern Wyoming this
afternoon.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Friday and Saturday...A chance of thunderstorms over most of the
area.

Sunday and Monday...A chance of thunderstorms in the west and
north. Isolated storms elsewhere.

.SPOTTER INFORMATION STATEMENT...

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

$$

TEAM RIVERTON

Hazardous Weather Outlook
National Weather Service Rapid City SD
522 AM MDT Thu Jun 20 2019

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-211300-
Harding-Perkins-Butte-Northern Meade Co Plains-Ziebach-
Northern Black Hills-Northern Foot Hills-Rapid City-
Southern Foot Hills-Central Black Hills-Southern Black Hills-
Custer Co Plains-Pennington Co Plains-Haakon-Fall River-
Oglala Lakota-Jackson-Bennett-Mellette-Todd-Tripp-
Sturgis/Piedmont Foot Hills-Southern Meade Co Plains-
Hermosa Foot Hills-Northern Campbell-Southern Campbell-
Western Crook-Wyoming Black Hills-Weston-Northeastern Crook-
522 AM MDT Thu Jun 20 2019 /622 AM CDT Thu Jun 20 2019/

This Hazardous Weather Outlook is for western South Dakota and
northeastern Wyoming.

.DAY ONE...Today and Tonight

Scattered thunderstorms will develop over the higher terrain later
this afternoon and then become numerous tonight. Isolated severe
thunderstorms are possible late this afternoon and this evening
with large hail and damaging winds the main threat.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Thunderstorms are possible through the weekend, but organized
severe thunderstorms are not 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 Denver/Boulder CO
508 AM MDT Thu Jun 20 2019

COZ030>051-211115-
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-
508 AM MDT Thu Jun 20 2019

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

.DAY ONE...Today and Tonight

Windy conditions are expected in the mountains and foothills with
gusts to 50 mph today. Scattered showers and thunderstorms can be
expected this afternoon and evening with a few strong to
potentially severe thunderstorms over the far northeast plains.
Elsewhere, storms will be capable of producing gusty winds to 50
mph.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

A cold front will move over northeast Colorado Friday morning,
ushering in a cooler and unsettled weekend. The surface cold front
will combine with southwesterly flow aloft to make it possible for
some strong thunderstorms to develop on the plains Friday
afternoon. Large hail and damaging winds would be the primary
threats from the strong thunderstorms. The weekend will be even
cooler than Friday, with rain showers and thunderstorms possible
through the period. By Saturday night, an upper level low will be
moving over the northern half of the state with temperatures
possibly getting cold enough for snow to fall over the north
central mountains, including Rocky Mountain National Park.

Drier and warmer conditions are expected to return Monday through
Wednesday as the upper low moves out and an upper ridge begins
building over the southern Great Plains.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$

Hazardous Weather Outlook
National Weather Service Cheyenne WY
451 AM MDT Thu Jun 20 2019

NEZ002-003-019>021-054-055-095-096-WYZ108-119-211100-
Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne-
North Sioux-South Sioux-Goshen County-East Laramie County-
451 AM MDT Thu Jun 20 2019

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

.DAY ONE...TODAY AND TONIGHT

Strong to severe thunderstorms will be possible this afternoon
from 2pm through 10 to 11pm tonight. These storms will be capable
of large hail, damaging winds of 60 mph, and a tornado or two
can`t be ruled out as well. Most favored area of the severe storms
will be along the WY/NE border and east into the southern half of
the Nebraska Panhandle.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

Periods of moderate rain on Friday and over the weekend could
cause local rivers and streams to swell. Poor drainage areas may
become flooded for brief periods.

.Spotter information statement...

Spotter activation will likely be needed this afternoon and
evening.

$$

Hazardous Weather Outlook
National Weather Service Cheyenne WY
451 AM MDT Thu Jun 20 2019

WYZ101>105-107-109-111>118-211100-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-East Platte County-Central Carbon County-
Southwest Carbon County-Sierra Madre Range-
Upper North Platte River Basin-Snowy Range-Laramie Valley-
South Laramie Range-South Laramie Range Foothills-
Central Laramie County-
451 AM MDT Thu Jun 20 2019

This hazardous weather outlook is for portions of east central
Wyoming...south central Wyoming and southeast Wyoming.

.DAY ONE...TODAY AND TONIGHT

Periods of moderate to heavy rain showers will be likely late
tonight through Friday. Upwards of 0.5 to 1.25 inches will
possible and this could cause mountain creeks and streams to reach
near bank full or briefly spill over their banks. Please use
caution if traveling into the High Terrain today through the
weekend as water flows will be fast and high.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

Continued risk for localized moderate rainfall Friday and into the
weekend. This could result in localized high water flows in the
mountains and some lower valleys. Please pay close attention if in
the high terrain this weekend.

.Spotter information statement...

Spotter activation may be needed.

$$

Allen

Hazardous Weather Outlook
National Weather Service Cheyenne WY
451 AM MDT Thu Jun 20 2019

WYZ106-110-211100-
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-
451 AM MDT Thu Jun 20 2019

This hazardous weather outlook is for portions of south central
Wyoming and southeast Wyoming.

.DAY ONE...TODAY AND TONIGHT

Elevated winds of 35 to 45 mph with gusts to 60 mph could be
possible late this morning into the early evening hours. Risk of
blowoff will occur to light, high-profile vehicles. Wind will
decrease this evening.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

No hazardous weather is expected at this time.

.Spotter information statement...

Spotter activation will not be needed.

$$

Hazardous Weather Outlook
National Weather Service Grand Junction CO
403 AM MDT Thu Jun 20 2019

COZ001>014-017>023-UTZ022>025-027>029-211300-
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-
403 AM MDT Thu Jun 20 2019

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

.DAY ONE...Today and Tonight

Winds will increase today and with dry conditions in place,
critical fire weather conditions will be met. Red Flag Warnings
have been issued for central eastern Utah and southwestern
Colorado. Some showers and storms will fire this afternoon north
of I-70. Precipitation will continue overnight for those areas.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Showers and thunderstorms will continue through the weekend. Next
week looks to be fairly dry.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

Hazardous Weather Outlook
National Weather Service Salt Lake City UT
401 AM MDT Thu Jun 20 2019

UTZ001>016-019>021-517-518-WYZ021-211300-
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-
401 AM MDT Thu Jun 20 2019

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

.DAY ONE...Today and Tonight

Waterways will continue to run high, cold, and swift. Exercise
caution near waterways, and keep a close eye on children and pets.

Strong gusty winds are expected today and tonight with the
approach and passage of a cold front. Thunderstorms could become
strong across central Utah this afternoon into the early evening.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Spotty light snow accumulations possible above 9kft across
northern and central Utah Friday and Saturday. Temperatures will
struggle to climb out of the 30s at high elevations during this
period.

Waterways will continue to run high, cold, and swift into next
week.

.SPOTTER INFORMATION STATEMENT...

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

$$

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 Billings MT
218 PM MDT Wed Jun 19 2019

MTZ028>042-056>058-063>066-WYZ098-099-202030-
Southern Wheatland-Musselshell-Treasure-Northern Rosebud-Custer-
Fallon-Northern Stillwater-Yellowstone-Powder River-Carter-
Southern Big Horn-Eastern Carbon-Northern Park-
Northern Sweet Grass-Golden Valley-Red Lodge Foothills-
Northern Big Horn-Southern Rosebud-Judith Gap-Paradise Valley-
Livingston Area-Beartooth Foothills-Northeast Bighorn Mountains-
Sheridan Foothills-
218 PM MDT Wed Jun 19 2019

This Hazardous Weather Outlook is for portions of central
Montana...south central Montana...southeast Montana and north
central Wyoming.

* WHAT...Strong to severe thunderstorms.

* WHERE AND WHEN...For Wednesday, much of south central and
  southeast Montana as well as north central Wyoming, and on
  Thursday, southeast Montana.

* ADDITIONAL DETAILS...Thunderstorms will be capable of producing
  large hail and damaging winds, along with torrential rainfall.
  People with outdoor activities planned should monitor the
  forecast and take action should thunderstorms approach.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Hazardous Weather Outlook is issued when hazardous weather could
impact the region within the next week. Be sure to stay tuned for
future updates as locations, timing, and impacts could change.
Begin preparations to mitigate any impacts that could result from
the hazardous weather.

&&

$$

Hazardous Weather Outlook
National Weather Service Billings MT
218 PM MDT Wed Jun 19 2019

MTZ067-068-202030-
Absaroka/Beartooth Mountains-Crazy Mountains-
218 PM MDT Wed Jun 19 2019

This Hazardous Weather Outlook is for portions of south central
Montana.

* WHAT...Strong to severe thunderstorms.

* WHERE AND WHEN...For Wednesday, much of south central and
  southeast Montana as well as north central Wyoming, and on
  Thursday, southeast Montana.

* ADDITIONAL DETAILS...Thunderstorms will be capable of producing
  large hail and damaging winds, along with torrential rainfall.
  People with outdoor activities planned should monitor the
  forecast and take action should thunderstorms approach.

* ADDITIONAL HAZARD CONCERNS...Snow accumulations are possible over
  the high country Thursday night through Saturday. The wet
  conditions may impact those planning to recreate in the
  backcountry, as well as the Beartooth Highway.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Hazardous Weather Outlook is issued when hazardous weather could
impact the region within the next week. Be sure to stay tuned for
future updates as locations, timing, and impacts could change.
Begin preparations to mitigate any impacts that could result from
the hazardous weather.

&&

$$

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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