Sweetwater County, WY

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Alerts are listed in order of start time and level of severity. Click on the alert title to read details for each alert.

In effect from Saturday 09/19 11:59 AM MDT – Sunday 09/20 9:00 AM MDT

Issued by NWS Riverton WY

ESFRIW

Periods of showers and thunderstorms are expected across the northern half of Wyoming Saturday and Sunday as a wet weather system shifts east across the state. This weather system is funneling abundant tropical moisture into northern and eastern portions of the state with it's eastward progression. Given the high moisture content, many thunderstorms could feature heavy rainfall and possibly lead to localized flooding. Poor drainage areas, urban areas, and steep terrain will be the most susceptible locations for this isolated flooding.

Many locations could see an additional 0.5" to 1.25" of rain through Sunday afternoon, with a majority of this rain falling quickly in thunderstorms.

Remember, if you encounter a flooded roadway, turn around don't down!


Areas Impacted

  • Big Horn, WY
  • Fremont, WY
  • Hot Springs, WY
  • Johnson, WY
  • Natrona, WY
  • Park, WY
  • Sweetwater, WY
  • Teton, WY
  • Washakie, WY

Briefing

Last updated

From the Forecaster

Weather Story

Created by the NWS Riverton WFO

A weather system will approaching and cross the state and bring showers and thunderstorms to many locations, especially in northern Wyoming. Some thunderstorms could have heavy rain and cause local flooding.

Weather Story Graphic

Seven-day Weather Risk Overview

The graphic shows the daily risk summary for 7 days. Daily risk is based on highest risk factor for that day.

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