273
FGUS75 KBOI 250646
ESFBOI
IDC001-003-015-025-027-039-045-047-053-073-075-083-085-087-ORC001-
025-045-252030-

Hydrologic Outlook
National Weather Service Boise ID
1246 AM MDT Mon Aug 25 2025 /1146 PM PDT Sun Aug 24 2025/

Monsoon moisture will bring a threat of showers and thunderstorms
to the region through midweek. High atmospheric moisture will
allow for isolated thunderstorms producing heavy rain
accumulations, leading to an increased threat of flash flooding.
Tuesday and Wednesday currently have the highest chance for
locally heavy rains, especially in southeast Oregon, near the ID-
NV border, and high terrain in southwest Idaho. Conditions dry out
after Thursday.

Burn scars are the highest risk for flash flooding. The Wapiti
Fire burn scar near Grandjean, ID, the Durkee Fire burn scar near
Ironside, OR, and the Lava Fire burn scar near Cascade, ID are of
particular concern for flash flooding.

$$