Watches, Warnings & Advisories



2 products issued by NWS for: Casper WY

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Riverton WY
1039 AM MDT Sun Jul 20 2025

WYZ001>020-022>030-212045-
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-
1039 AM MDT Sun Jul 20 2025

...Red Flag Warnings in effect across central and southern portions
12 PM to 8 PM Sunday and Monday...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and tonight.

Critical fire weather conditions across portions of southern and
central Wyoming due to low relative humidity and gusty west winds
with elevated conditions elsewhere.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Elevated to critical fire weather conditions once again Monday
afternoon and evening with possible outflow winds from isolated
thunderstorms.

Elevated to near critical fire weather conditions for the remainder
of the week with isolated thunderstorm chances each afternoon and
evening.

.SPOTTER INFORMATION STATEMENT...

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

$$




Red Flag Warning

URGENT - FIRE WEATHER MESSAGE
National Weather Service Riverton WY
1035 AM MDT Sun Jul 20 2025

WYZ280-220200-
/O.EXT.KRIW.FW.W.0006.250720T1800Z-250722T0200Z/
Natrona County/Casper BLM-
1035 AM MDT Sun Jul 20 2025

...RED FLAG WARNING NOW IN EFFECT UNTIL 8 PM MDT MONDAY...

* AFFECTED AREA:
  In Central WY...Fire Weather Zone 280.

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

* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty
  Winds could cause erratic fire behavior.

* WIND: West 15 to 20 mph with gusts up to 30 to 35 mph diminishing
  overnight.

* HUMIDITY: As low as 10 percent but recovering overnight to
  around 35 to 40 percent.

* TEMPERATURES: Highs around 90. Lows around 60.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions are
either occurring now....or will shortly. A combination of strong
winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$