Watches, Warnings & Advisories



3 products issued by NWS for: Casper WY

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Riverton WY
119 PM MDT Tue Jul 23 2024

WYZ001>020-022>030-241300-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn 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-
119 PM MDT Tue Jul 23 2024

...Fire Weather Watch Posted for Portions of Central Wyoming Thursday
Afternoon and Evening...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...This Afternoon and Tonight.

Isolated to scattered thunderstorms occur over mainly the northwest
mountains and adjacent basins until 10 PM. Widespread wildfire smoke
continues to reduce visibility.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday...Unseasonably warm temperatures 7 to 10 degrees above
seasonal averages. Wildfire smoke persists in limiting visibility.

Thursday...Elevated to critical fire weather conditions possible
across portions of central Wyoming. Areas east of the Continental
Divide could see near-record heat.

Friday and Saturday...A better chance of widespread showers and
thunderstorms, but cooler.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

$$




Fire Weather Watch

URGENT - FIRE WEATHER MESSAGE
National Weather Service Riverton WY
103 PM MDT Tue Jul 23 2024

WYZ280-281-241300-
/O.NEW.KRIW.FW.A.0003.240725T1800Z-240726T0500Z/
Natrona County/Casper BLM-Johnson County/Casper BLM-
103 PM MDT Tue Jul 23 2024

...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...

The National Weather Service in Riverton has issued a Fire Weather
Watch, which is in effect from Thursday afternoon through Thursday
evening.

* IMPACTS: Hot temperatures, low humidity, gusty southwest wind,
  frontal passage, and possibly dry lightning could all cause
  erratic fire behavior.

* AFFECTED AREA:
  In Central WY Fire Zone....280.
  In North Central WY Fire Zone....281.

* COUNTIES AFFECTED:
  In Central WY...Natrona.
  In North Central WY...Johnson.

* WIND: Southwest 10 to 15 mph with gusts 20 to 30 mph.

* HUMIDITY: 10 to 13 percent.

* TEMPERATURES: Near-record heat, with highs 95 to 100.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible Red
Flag Warnings.

&&

$$



Air Quality Alert

WYZ001>007-010>013-016>020-022>026-028>030-241900-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin-
Owl Creek and Bridger Mountains-Northeast Johnson County-
Southeast Johnson County-Teton and Gros Ventre Mountains-
Jackson Hole-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-Rock Springs and Green River-Flaming Gorge-
East Sweetwater County-
Including the cities of Lake, Mammoth, Old Faithful, Clark, Cody,
Meeteetse, Basin, Greybull, Lovell, Powell, Shell, Thermopolis,
Ten Sleep, Worland, Buffalo, Kaycee, Jackson, Dubois, Riverton,
Shoshoni, Lander, Jeffrey City, Casper, Afton, Alpine,
Star Valley Ranch, Thayne, Pinedale, La Barge, Big Piney, Farson,
Rock Springs, Green River, and Wamsutter
1254 PM MDT Tue Jul 23 2024

...AIR QUALITY ALERT IN EFFECT UNTIL 1 PM MDT WEDNESDAY...

The following message is transmitted on behalf of the Wyoming
Department of Environmental Quality, Air Quality Division, and the
Wyoming Department of Health.

* WHAT...Air Quality Alert for Wildfire Smoke.

* WHERE...Most of Western and Central Wyoming.

* WHEN...Until 1 PM Wednesday.

* IMPACTS...Smoke from wildfires burning across the Pacific Northwest
  continues to circulate clockwise around high pressure in the Great
  Basin. This smoke is limiting visibilities at times.

HEALTH INFORMATION...The Wyoming Department of Health recommends
that the elderly, young children, and individuals with respiratory
problems avoid excessive physical exertion and minimize outdoor
activities during this time. Wildfire smoke is made up of a variety
of pollutants, including particulate matter and ozone, which can
cause respiratory health effects. Although these people are most
susceptible to health impacts, the Department of Health also advises
that everyone should avoid prolonged exposure to poor air quality
conditions.

CURRENT CONDITIONS...The Wyoming Department of Environmental
Quality, Air Quality Division offers near real-time air quality data
for Wyoming`s monitoring stations and health effects information to
help the public interpret current conditions. Current air quality
conditions across the state of Wyoming can be found at
http://www.wyvisnet.com/.

$$