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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Riverton WY
305 AM MDT Mon Jun 26 2017

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-
305 AM MDT Mon Jun 26 2017

...A flood warning is in effect for a portion of the Green River
in southwestern Wyoming...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight

Flooding will continue on some area rivers today. Please see flood
warnings and forecasts for details.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Tuesday through Wednesday...Isolated to scattered thunderstorms
mainly across northern and central Wyoming. Some storms may be
strong to severe across northern Wyoming producing wind gusts of
50 to 60 mph and hail to one inch Tuesday afternoon and evening.

Otherwise, very warm, dry and breezy to windy conditions will
bring elevated fire danger to portions of central and southern
Wyoming on Tuesday.

Thursday and Friday...Isolated to scattered thunderstorms across
the north and central.

.SPOTTER INFORMATION STATEMENT...Spotter activation will not be
needed today and tonight.


Hazardous Weather Outlook
National Weather Service GRAND JUNCTION CO
539 AM MDT Mon Jun 26 2017

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-
539 AM MDT Mon Jun 26 2017

This hazardous weather outlook is for eastern Utah and western

.DAY ONE...Today and Tonight

High pressure remains in control. Even so, a quick shower or storm
is possible over the San Juans and eastern Uinta mountains today.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

A passing disturbance will allow winds to pick up some Tuesday and
Wednesday and with dry fuels in place and continued low
humidities, critical fire weather conditions may be met. Fire
Weather Watches have been issued for our northern Colorado fire
zones for Tuesday. This area may have to be extended depending on
how much wind reaches the surface. Gusty winds are possible again
on Thursday possibly bringing another critical fire day. Thursday
and beyond, high pressure will build back in bringing more sun and
dry weather.


Spotter activation will not be needed.


Hazardous Weather Outlook
National Weather Service Billings MT
328 AM MDT Mon Jun 26 2017

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-Absaroka/Beartooth Mountains-
Crazy Mountains-Northeast Bighorn Mountains-Sheridan Foothills-
328 AM MDT Mon Jun 26 2017

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

* Potential Impacts: Increasing wildfire danger today with
  thunderstorm activity tonight and Tuesday.

* Cold Front: Tonight into early Tuesday.

* Wind: Southeast winds increase today over southeast Montana. A
  cold front will bring gusty northwest winds on Tuesday.

* Thunderstorms: Mainly mountain thunderstorms this evening
  reaching the adjacent plains after midnight.

* Humidity: Teens to lower 20s today. Mainly lower to mid 20s

* Temperatures: Upper 80s to lower 90s today, decreasing to the
  80s Tuesday. Cooler by midweek.


Hazardous Weather Outlook
National Weather Service Salt Lake City UT
257 AM MDT Mon Jun 26 2017

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-
257 AM MDT Mon Jun 26 2017

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

.DAY ONE...Today and Tonight

The smoke plume from the Brian Head Fire is affecting southern
Utah this morning, and should shift northeast into central Utah
this afternoon, reaching the Salt Lake valley and Western Uinta
Basin by late tonight. Locally poor air quality and reduced
visibilities will result from the increase in smoke.

It will remain very warm and dry today. Wind gusts will increase
across most of west central, central and south central Utah to
provide critical fire weather conditions this afternoon and

Isolated thunderstorms are forecast today. In addition to the
threat of starting new fires due to lightning, they will bring the
threat of locally gusty and erratic winds.

Flows in the waterways of northern Utah and southwest Wyoming
remain fast and cold, and are still deadly. A person or pet can
drown in less than a minute in these waters.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Critical fire weather conditions will be possible across central
and eastern Utah Tuesday and southern Utah Wendesday due to a
combination of gusty winds and low RH.

Remember...waterways of northern Utah and southwest Wyoming will
continue to be dangerous with cold and fast flows expected
through the outlook period.


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



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Page last modified: June 2, 2009
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