Wind Advisory

URGENT - WEATHER MESSAGE
National Weather Service Boise ID
1135 PM MDT Sat May 31 2025

ORZ064-011200-
/O.CON.KBOI.WI.Y.0015.000000T0000Z-250601T1200Z/
Oregon Lower Treasure Valley-
Including the cities of Nyssa and Ontario
1135 PM MDT Sat May 31 2025 /1035 PM PDT Sat May 31 2025/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT /5 AM PDT/
SUNDAY...

* WHAT...Northwest winds 25 to 40 mph with gusts up to 55 mph
  expected. Areas of blowing dust reducing visibility.

* WHERE...Oregon Lower Treasure Valley.

* WHEN...Until 6 AM MDT /5 AM PDT/ Sunday.

* IMPACTS...Gusty winds will blow around unsecured objects. Areas of
  blowing dust will cause reduced visibilities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high
profile vehicles. Areas of blowing dust may reduce visibility. Use
caution if traveling.

&&

$$

ST

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Riverton WY
220 AM MDT Sat May 31 2025

WYZ001>020-022>030-011300-
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-
220 AM MDT Sat May 31 2025

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight.

Warm temperatures will bring high elevation snowmelt and rising
water levels on area creek and streams.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday...Above normal temperatures allow for mountain snowmelt
and rising water levels on creeks and streams.

Strong thunderstorms possible in northwestern Wyoming Sunday
afternoon.

Monday and Tuesday...A transition to a cooler and wetter pattern,
with snow possible in the higher elevations. Details on
precipitation amounts remain uncertain.

.SPOTTER INFORMATION STATEMENT...

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

$$

Hydrologic Outlook

Hydrologic Outlook
WYC003-013-017-019-023-025-029-035-037-039-043-012200-

Hydrologic Outlook
National Weather Service Riverton WY
1159 AM MDT Sat May 31 2025

...Warm Temperatures this Weekend will increase high-elevation
snowmelt and flooding potential...

Temperatures are expected to reach the mid to upper 80s this
weekend. Sunday will be the warmest day, with highs in the upper 80s
to low 90s across many locations. 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.
Highest stream flows and crests are expected to occur Sunday morning
and 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