2 products issued by NWS for:
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service Riverton WY 251 AM MDT Tue May 13 2025 WYZ001>020-022>030-141300- 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- 251 AM MDT Tue May 13 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 6 PM MDT WEDNESDAY FOR THE ABSAROKA MOUNTAINS... ...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 11 PM MDT WEDNESDAY FOR THE BIGHORN MOUNTAINS... This Hazardous Weather Outlook is for Western and Central Wyoming. .DAY ONE...Today and tonight. Fire weather conditions will be elevated east of the Continental Divide. RH will drop into the low teens for southeastern portions of the area this afternoon and wind will increase to 20-30 mph, with gusts of 30-40 mph. A strong cold front will push through central Wyoming this afternoon into tonight, with a gusty northerly wind behind it. Rain and mountain snow begins from the west this afternoon spreading east of the Divide tonight. Rainfall amounts over 1 inch are possible in the Cody foothills and eastern slopes of the Absaroka Mountains below 7500 ft. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Wednesday through Thursday...A multi-day Spring storm system will continue to impact western and central Wyoming. Substantial mountain snow will fall at elevations above 8000 ft, mainly across the Absarokas and Bighorns. Rainfall will be impactful as well for elevations below 8000 ft. The best chance (10-20%) for minor flooding would along the eastern slopes of the Absaroka Mountains into northwestern Bighorn Basin. This Weekend...Another strong Spring weather system appears likely (70%) to be widespread precipitation chances and cool conditions to western and central Wyoming. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. $$
Flood Advisory
Flood Advisory
National Weather Service Riverton WY
315 PM MDT Tue May 13 2025
...The Flood Advisory continues for the following rivers in
Wyoming...
Pacific Creek near Moran affecting Teton County.
For the Snake River Basin...including Moose, Jackson, Zenith, Below
Jackson Lake Reservoir, Alpine, Alpine, Flagg Ranch, Jackson, Moran,
Moran...elevated river levels are forecast.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
Additional information is available at www.weather.gov.
The next statement will be issued Wednesday morning at 700 AM MDT.
&&
WYC039-141300-
/O.CON.KRIW.FL.Y.0002.000000T0000Z-250515T0000Z/
/PACW4.N.RS.000000T0000Z.000000T0000Z.000000T0000Z.NR/
315 PM MDT Tue May 13 2025
...FLOOD ADVISORY REMAINS IN EFFECT UNTIL TOMORROW EVENING...
* WHAT...Flooding caused by rain and snowmelt continues.
* WHERE...Pacific Creek near Moran.
* WHEN...Until tomorrow evening.
* IMPACTS...At 7.5 feet, BANKFULL STAGE. ACTION STAGE.
At 8.2 feet, RECORD STAGE --- 8.20 FT (6/6/2017).
At 8.5 feet, FLOOD STAGE. FLOODING OF UPSTREAM USFS CAMPGROUND ON
RIGHT BANK. MINOR LOWLAND FLOODING INTENSIFIES AND BECOMES MORE
WIDESPREAD. WATER REACHES THE BASE OF THE ROAD BED.
At 9.5 feet, MODERATE FLOOD STAGE. WATER REACHES THE SUB-STRUCTURE
OF THE BRIDGE.
* ADDITIONAL DETAILS...
- At 2:30 PM MDT Tuesday the stage was 6.9 feet.
- Bankfull stage is 7.5 feet.
- Forecast...The river will oscillate below flood stage with a
maximum value of 7.7 feet just after midnight tonight.
- Action stage is 7.5 feet.
- Flood stage is 8.5 feet.
- http://www.weather.gov/safety/flood
&&
LAT...LON 4398 11042 4400 11030 4398 11029 4395 11040
4386 11045 4384 11052 4385 11053 4390 11050
$$
Myers