Heat Advisory issued May 31 at 7:17AM MDT until May 31 at 9:00PM MDT by NWS Missoula MT

* WHAT…Moderate risk of heat effects expected.

* WHERE…In Idaho, Eastern Lemhi County. In Montana,
Flathead/Mission Valleys, Kootenai/Cabinet Region, Lower Clark
Fork Region, and Missoula/Bitterroot Valleys.

* WHEN…From noon today to 9 PM MDT this evening.

* IMPACTS…This level of heat affects most individuals sensitive to
heat, especially those without effective cooling and/or adequate
hydration. Impacts possible in some health systems and in
heat-sensitive industries.

* ADDITIONAL DETAILS…Early-season high temperatures expected to
reach 90 to 98 degrees. Be mindful that rivers and streams
continue to flow cold, high, and fast with murky waters
potentially obscuring underwater hazards.