June 13, 2017: The National Weather Service has issued a Small Stream Flood Advisory for east-central Missoula County, northern Granite County, west-central Powell County, and has issued a Flood Warning for Granite County. The flood warning is expected to remain in effect until 10:00 p.m. MDT Tuesday while the advisory is expected to remain until about 5:00 p.m. today, Tuesday. Continued heavy rain is forecast and localized flooding may cause rapid rising of streams and creeks. Localized flooding is expected in the following areas: Ovando, Seeley Lake, Garnet, Greenough, Woodworth, and Clearwater; Ravalli, Ronan, St. Ignatius, Pablo, Arlee, Evaro, Allentown, Kicking Horse, Charlo, and Fort Connah.
June 12, 2017: The National Weather Service has called for a Flood Watch over southwest and much of west-central Montana. A strong low pressure system will bring widespread heavy rain, particularly over the Continental Divide. The heaviest rain will occur tonight and extend into mid-day Tuesday. The Flood Watch is from 3:00 p.m. this afternoon and may extend into Tuesday night. High temperatures have begun high mountain snowmelt and flood level has been approached on several Montana rivers. Recent or active Flood Watches have been designated for the Yellowstone River near Livingston, the Clarks Fork of the Yellowstone near Belfry, the Boulder River at Big Timber, the Stillwater River near Absarokee and the Big Hole River at Melrose. Minor flooding can be expected to continue around these streams and certain smaller streams in the southwest and west-central areas of Montana. Those with interests in and near waterways are urged to take precautions such as moving livestock. Avoiding attempting to ford moving waters. Recreationists are advised to use extreme caution around waterways over the next several weeks. Check back to this site for further developments.
The Montana Disaster & Emergency Services is the first contact for flooding and other natural disasters. Call: 406-324-4777 or contact by email: mtdes@mt.gov
The National Weather Service Forecast offices in Great Falls offers this Montana All-Hazards Weather Monitoring site.
Montana Department of Transportation offers this Flash Flood Watch and another Advisory. Both offer valuable information for travelers, but note carefully the date of each report.
InciWeb is a national incident information system. If and when flooding occurs in Montana InciWeb will post current information specific to our region, recent articles, and links to weather reports.
The U.S. Geological Services offers WaterWatch for states. Real-time streamflow data can be compared against historic flows. Yellowstone River locations One and Two. Missouri River locations One, Two, and Three.
A full listing of county and tribal health departments is maintained by DPHHS.
DEQ's Today's Air resource also documents activities throughout the state.