A combination of rain and snow melt brought minor flooding along the Ten Sleep Creek.
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The episode as NWS RIW wrote it up.
A combination of rain and snow melt brought minor flooding along the Ten Sleep Creek.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Riverton, WY wrote its last area forecast discussion before the first event at May 29, 2:39 AM MST, 1 hour 21 minutes earlier.
Area Forecast Discussion National Weather Service Riverton WY 339 AM MDT Wed May 29 2019 .SHORT TERM...(Today and tonight) Issued at 316 AM MDT Wed May 29 2019 Midlevel trough circulation centered in NE CO will continue to trek northeastward across Nebraska through the day today. Models continue to pick up on a vort lobe rotating westward around the top of the trough and back down across western Wyoming today. This will bring enough energy to continue the slight chances for showers for far western Wyoming, especially around the Tetons this afternoon. Gradual clearing for the northern zones from Yellowstone eastward to Worland will allow temperatures to rise into the 60s today. The remainder of the lower elevations will keep cloud cover longer today, with highs in the mid to upper 50s. .LONG TERM...(Thursday through Tuesday) Issued at 316 AM MDT Wed May 29 2019 Thursday will be a wrestling match between high pressure over MT and a closed low over northern CA/NV. Expect isolated to scattered showers and thunderstorms in the west and dry conditions with mostly sunny skies elsewhere. Friday the cut off low will dig further south and a broad area of ridging will move over the FA. A series of shortwave troughs propagating through the ridge will bring enough instability for afternoon showers and thunderstorms across west and north WY through Monday. Saturday looks like it will be the most widespread day of activity as we transition to the windward side of the ridge. A trough will push across southern Canada on Tuesday and Wednesday but models disagree on how far south it will dig. GFS is furthest south but most other models keep the energy further north and most of the impact in MT. For now leaning to sparse activity for Tuesday and Wednesday. Temperatures will start steady trend through the weekend with highs getting warmer each day, finally seeing temperatures slightly above normal. High temperatures over the weekend will be in the mid to upper 70s east of the divide. Portions of the Bighorn Basin may even hit the 80s on Sunday and Monday. West of the Divide will reach the upper 60s to lower 70s. && .AVIATION...(For the 06Z TAFS through 06Z Thursday night) MVFR conditions will remain a possibility from KCPR extending southeast across the area from KRIW with borderline MVFR ceilings possible until around 12Z into the KRKS area. VFR conditions are then expected across the area through the rest of the forecast period. Winds will be variable at most locations through the afternoon and will become more southerly by around 01Z Thursday evening especially east of the Divide. Please refer to Aviation Weather Center products for more information on icing and turbulence forecasts. && .FIRE WEATHER... Issued AT 316 AM MDT Wed May 29 2019 Fire weather concerns remain lower through the upcoming weekend due to remnant moisture from earlier precipitation, lighter winds, and only modest drying across the state. && .RIW WATCHES/WARNINGS/ADVISORIES... NONE. && SHORT TERM...Straub LONG TERM...Hulme AVIATION...Troutman FIRE WEATHER...Straub
Hazardous Weather Outlook National Weather Service Riverton WY 259 AM MDT Wed May 29 2019 WYZ001>020-022>030-300900- Yellowstone National Park-Absaroka Mountains-Cody Foothills- North Big Horn Basin-Southwest Big Horn Basin- Southeast Big Horn 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- 259 AM MDT Wed May 29 2019 This Hazardous Weather Outlook is for Western and Central Wyoming. .DAY ONE...Today and Tonight. Isolated afternoon and evening thunderstorms in western Wyoming. Please see Winter Storm Warnings and Flood Watches for the latest information. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Thursday through Sunday...Isolated to scattered afternoon and evening thunderstorms. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures.
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
A trained spotter reported minor flooding along Ten Sleep Creek. The water remained in low lying areas and caused no damage.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2019Every state in 2019This day in weather historyWarnings in Wyoming, May 2019
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 823983.