Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Riverton WY
427 AM MDT Mon Jun 2 2025

WYZ001>020-022>030-031300-
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-
427 AM MDT Mon Jun 2 2025

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and tonight.

Much cooler as a cold front moves through. Windy north to northeast
winds follow. Shower and thunderstorm chances today, with high
elevation snow starting this evening.

Showers and thunderstorms possible this afternoon and evening.
Strong wind gusts are the main threat.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Daily shower and thunderstorm chances. Warming trend starting
Wednesday.

.SPOTTER INFORMATION STATEMENT...

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

$$

Flood Advisory
National Weather Service Riverton WY
110 PM MDT Sun Jun 1 2025

WYC043-021800-
/O.CON.KRIW.FA.Y.0002.000000T0000Z-250602T1800Z/
/00000.N.SM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Washakie WY-
110 PM MDT Sun Jun 1 2025

...FLOOD ADVISORY FOR SNOWMELT REMAINS IN EFFECT UNTIL NOON MDT
MONDAY...

* WHAT...Minor Flooding caused by snowmelt is expected.

* WHERE...Along Tensleep Creek and Canyon Creek in northeastern
  Washakie County near and above the town of Tensleep.

* WHEN...Until noon MDT Monday.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.
  Some low-water crossings may become impassable. River or stream
  flows are elevated.

* ADDITIONAL DETAILS...
  - At 107 PM MDT, gauge reports continue to indicate early
    morning river rises to near bankfull conditions due to warm
    temperatures and increased high-elevation snowmelt.
  - Creek levels continue to decrease through the afternoon and
    evening, but are expected to increase again overnight, with
    near bankfull conditions expected early Monday morning.
  - Some locations that may experience flooding include...
    Ten Sleep, Tensleep Canyon, Leigh Creek Campground and Wigwam
    Fish Rearing Station.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Minor flooding is occurring or is imminent. It is important to know
where you are relative to streams, rivers, or creeks. Campers and
hikers should avoid streams or creeks.

Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.

&&

LAT...LON 4407 10731 4406 10735 4402 10731 4401 10734
      4404 10737 4404 10740 4402 10744 4403 10746
      4407 10739 4409 10732


$$

Hensley

Hydrologic Outlook
WYC003-013-017-019-023-025-029-035-037-039-043-021800-

Hydrologic Outlook
National Weather Service Riverton WY
106 PM MDT Sun Jun 1 2025

...Warm Temperatures continue to increase high-elevation snowmelt
and flooding potential...

Temperatures are expected to reach the upper 80s to low 90s across
many locations Sunday. Low temperatures will also remain well above
freezing with low temperatures in the 40s at elevations above 9500
feet. These warm temperatures will continue to lead to an increase
in the rate of mountain snowmelt.

Most mountain snowpack below 9500 feet has melted out, however,
high-elevation mountain snow water equivalent (SWE) above that level
still remains. With the expected warm temperatures, a significant
portion of that high-elevation snowpack is expected to continue to
melt through Sunday night. Minor flooding of small streams and
creeks fed by mountain snowmelt is thus possible through Monday
morning. Highest stream flows and crests are expected to occur
Monday morning.

Stay tuned for the latest river forecasts. Remember, if you
encounter a flooded roadway, turn around don`t drown. You never know
what road conditions are hidden under the water.

$$

Hensley

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