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Red Flag Warning


URGENT - FIRE WEATHER MESSAGE
National Weather Service Pocatello ID
422 AM MDT Sun Aug 20 2017

...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 9 PM
MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR EAST IDAHO
FIRE WEATHER ZONES 410 AND 425...

IDZ410-425-202100-
/O.UPG.KPIH.FW.A.0005.170820T2000Z-170821T0300Z/
/O.NEW.KPIH.FW.W.0011.170820T2000Z-170821T0300Z/
Upper Snake River Valley/Idaho Falls BLM-
Middle Snake River Valley/Twin Falls BLM north of the Snake River-
422 AM MDT Sun Aug 20 2017

...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 9 PM
MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR EAST IDAHO
FIRE WEATHER ZONES 410 AND 425...

The National Weather Service in Pocatello has issued a Red Flag
Warning, which is in effect from 2 PM this afternoon to 9 PM MDT
this evening. The Fire Weather Watch is no longer in effect.

* AFFECTED AREA... Arco Desert Region of fire weather zone 410.
  Fire weather zone 425.

* WIND...Southwest to West winds 10 to 20 mph with gusts to 30
  mph.

* HUMIDITY...Minimum 9 to 15 percent.

* IMPACTS...Any fires that develop will likely spread rapidly.
  Outdoor burning is not recommended. Do not use fireworks. Engine
  heat from vehicles can spark wildfires, especially in grasses.
  Do not park on or drive over grassy areas or throw cigarettes
  out of cars.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A red flag warning means that critical fire weather conditions
are either occurring now, or will shortly. Fires may experience
rapid rates of growth. Please advise the appropriate officials or
fire crews in the field of the red flag warning for portions of
Southeast Idaho.

&&

$$


Special Weather Statement


Special Weather Statement
National Weather Service Riverton WY
749 AM MDT Sun Aug 20 2017

WYZ001-002-012>016-202315-
Yellowstone National Park-Absaroka Mountains-
Teton and Gros Ventre Mountains-Jackson Hole-
Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-
Including the cities of Lake, Mammoth, Old Faithful, Jackson,
and Dubois
749 AM MDT Sun Aug 20 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 to
southwest 10 to 20 mph with afternoon gusts to 25 mph at times
across the mountains. 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
749 AM MDT Sun Aug 20 2017

WYZ003>007-017-018-202315-
Cody Foothills-North Big Horn Basin-Southwest Big Horn Basin-
Southeast Big Horn Basin-Owl Creek and Bridger Mountains-
Wind River Basin-Lander Foothills-
Including the cities of Cody, Meeteetse, Thermopolis, Worland,
Riverton, Shoshoni, and Lander
749 AM MDT Sun Aug 20 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 lower to mid teens across the lower elevations...to near
25 percent in the Cody Foothills. Winds will be west to north 5
to 15 mph with occasional afternoon gusts to 20 mph at times.
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
749 AM MDT Sun Aug 20 2017

WYZ008>011-020-022-202315-
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
749 AM MDT Sun Aug 20 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 lower and mid teens across the lower elevations...and the
mid teens to around 25 percent in the mountains. Winds will be
southwest 10 to 15 mph with afternoon gusts to 20 mph at times
across Natrona County...and northwest to northeast 5 to 15 mph
with occasional gusts to 20 mph over northern 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.

$$

Team Riverton

Special Weather Statement
National Weather Service Riverton WY
749 AM MDT Sun Aug 20 2017

WYZ019-023>030-202315-
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
749 AM MDT Sun Aug 20 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
10 to 15 mph with occasional afternoon gusts 20 to 25 mph at
times. 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.

$$


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1114 AM MDT Sun Aug 20 2017

COZ030>051-211715-
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-
1114 AM MDT Sun Aug 20 2017

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

.DAY ONE...Today and Tonight

Isolated to scattered thunderstorms will develop across the
mountains and foothills this afternoon, with a few of these
storms spreading east onto the plains late this afternoon and
evening. Most of the storms will produce gusty winds, light
rainfall, and occasional cloud to ground lightning. Across far
northeast Colorado storm chances are very low, but any storm that
manages to form could be strong with heavy rain and small hail
possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There will be a chance of afternoon and evening showers and
thunderstorms for the mountains and foothills Monday into next
weekend. There will be a slight chance on the plains Monday,
Wednesday, Friday and Saturday. Tuesday will be dry and stable
while Thursday will see the best chances of late day storms out
on the plains. The wettest days will be late day Tuesday in the
high county, and then late day Thursday and Friday for much of the
forecast area.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.



$$

Hazardous Weather Outlook
National Weather Service GRAND JUNCTION CO
430 AM MDT Sun Aug 20 2017

COZ001>014-017>023-UTZ022>025-027>029-211030-
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-
430 AM MDT Sun Aug 20 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...Monday through Saturday

Moisture is expected to increase later this weekend...which will
bring greater coverage of afternoon showers and thunderstorms to
the Four Corners area early next week. 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 Cheyenne WY
335 AM MDT Sun Aug 20 2017

NEZ002-003-019>021-054-055-095-096-WYZ101>119-210945-
Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne-
North Sioux-South Sioux-Converse County Lower Elevations-
Niobrara County-North Laramie Range-
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-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-East Laramie County-
335 AM MDT Sun Aug 20 2017

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

.DAY ONE...TODAY AND TONIGHT

Widely scattered showers and thunderstorms are possible this
afternoon over and near the mountains of southeast Wyoming.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

Chances of thunderstorms will return to the region on Monday
afternoon and evening, and will continue at times through much of
the week. Severe storms are not expected.

.Spotter information statement...

Spotter activation will not be needed.

$$

Hazardous Weather Outlook
National Weather Service Rapid City SD
314 AM MDT Sun Aug 20 2017

SDZ001-002-012>014-032-211300-
Harding-Perkins-Butte-Northern Meade Co Plains-Ziebach-Haakon-
314 AM MDT Sun Aug 20 2017

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

.DAY ONE...Today and Tonight

Scattered thunderstorms will end this morning. There is a chance
of thunderstorms tonight. There is a marginal risk of severe
thunderstorms tonight with large hail.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There is a chance of thunderstorms on Monday. 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 Rapid City SD
314 AM MDT Sun Aug 20 2017

SDZ024-025-028-072-073-WYZ054-056-057-071-211300-
Northern Black Hills-Northern Foot Hills-Central Black Hills-
Sturgis/Piedmont Foot Hills-Southern Meade Co Plains-
Northern Campbell-Western Crook-Wyoming Black Hills-
Northeastern Crook-
314 AM MDT Sun Aug 20 2017

This Hazardous weather outlook is for portions of the Black Hills
of South Dakota...western South Dakota...northeast Wyoming...and
the Black Hills of Wyoming.

.DAY ONE...Today and Tonight

There is a chance of thunderstorms tonight. There is a marginal
risk of severe thunderstorms tonight with large hail.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There is a chance of thunderstorms Monday. 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 Rapid City SD
314 AM MDT Sun Aug 20 2017

SDZ026-027-029>031-041>044-046-047-049-074-211300-
Rapid City-Southern Foot Hills-Southern Black Hills-
Custer Co Plains-Pennington Co Plains-Fall River-Oglala Lakota-
Jackson-Bennett-Mellette-Todd-Tripp-Hermosa Foot Hills-
314 AM MDT Sun Aug 20 2017 /414 AM CDT Sun Aug 20 2017/

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

.DAY ONE...Today and Tonight

There is a chance of thunderstorms tonight. Severe thunderstorms
are not expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There is a chance of thunderstorms on Monday. 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 Rapid City SD
314 AM MDT Sun Aug 20 2017

WYZ055-058-211300-
Southern Campbell-Weston-
314 AM MDT Sun Aug 20 2017

This Hazardous weather outlook is for portions of northeast
Wyoming.

.DAY ONE...Today and Tonight

Isolated thunderstorms are possible tonight. Severe thunderstorms
are not expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There is a slight chance of thunderstorms Monday. 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 Riverton WY
239 AM MDT Sun Aug 20 2017

WYZ001>020-022>030-210845-
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-
239 AM MDT Sun Aug 20 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. Isolated gusty thunderstorms across the southwest.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Monday...A couple of isolated afternoon thunderstorms over the
mountains.

Tuesday...Isolated gusty thunderstorms across the 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.

$$


Short Term Forecast


Short Term Forecast
National Weather Service Salt Lake City UT
1206 PM MDT Sun Aug 20 2017

UTZ009>014-019-020-517-518-201915-
Western Uinta Mountains-Wasatch Plateau/Book Cliffs-
Western Uinta Basin-Castle Country-San Rafael Swell-
Sanpete/Sevier Valleys-Utahs Dixie and Zion National Park-
South Central Utah-Central Mountains-Southern Mountains-
1206 PM MDT Sun Aug 20 2017

.NOW...
Isolated showers and thunderstorms will continue across portions
of southern...central and northeast Utah this afternoon. The main
activity at 12 pm was over the higher terrain in western Garfield
County and near Fish Lake and Duchesne. Some of these storms may
produce brief heavy rain...gusty winds...small hail and dangerous
lightning.

$$

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

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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