Headline:
Flood Watch issued September 17 at 7:33PM MDT until September 20 at 6:00PM MDT by NWS Billings MT
Event:
Flood Watch
Urgency:
Future
Effective:
September 17, 2026 - 6:33pm
Expires:
September 18, 2026 - 6:45pm
Description:
A strong and slow moving fall storm system will impact the region
from Friday night through Sunday. Well above normal atmospheric
moisture levels combined with the dynamics from this storm system
will provide the potential for heavy rainfall during this period.
Thunderstorms embedded in the more general rainfall will have the
potential to produce flash flooding, particularly over recent burn
scars.
* WHAT...Flooding caused by excessive rainfall is possible, along
with Flash Flooding of recent burn scars.
* WHERE...All of South Central Montana, Portions of Southeast
Montana, and Sheridan County Wyoming.
* WHEN...From Friday evening through Sunday afternoon.
* IMPACTS...Excessive runoff may result in flooding of creeks,
streams, and other low-lying and flood-prone locations. Flooding
may occur in poor drainage and urban areas.
* ADDITIONAL DETAILS...
- 1 to 2.5 inches of rainfall is forecast across the watch area
Friday night through Sunday. Locally heavier accumulations up to
4 inches are possible where thunderstorm activity develops.
- The Robertson Draw, East Side, Elk, and McGhee-Remington burn
scars are particularly vulnerable to Flash Flooding and debris
flows during the watch period. Any other burn scars from this
summer will have elevated Flash Flood potential as well.
- http://www.weather.gov/safety/flood
Instruction:
You should monitor forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
Area Description:
Musselshell; Treasure; Northern Rosebud; Northern Stillwater; Powder River; Northern Park; Golden Valley; Red Lodge Foothills; Northern Big Horn; Southern Rosebud; Judith Gap; Paradise Valley; Livingston Area; Beartooth Foothills; Absaroka/Beartooth Mountains; Crazy Mountains; Southern Big Horn; Southeastern Carbon; Northern Sweet Grass; Bighorn Canyon; Northern Carbon; Pryor/Northern Bighorn Mountains; Melville Foothills; Northeastern Yellowstone; Southern Wheatland; Southwestern Yellowstone; Northeast Bighorn Mountains; Sheridan Foothills
Forcast Office:
NWS Billings MT
Sender:
w-nws.webmaster@noaa.gov