Hydrologic Outlook issued February 20 at 12:05PM MST by NWS Missoula MT

ESFMSO

Where: Powell, Deer Lodge, and Silver Bow Counties in Montana and
Lemhi County in Idaho.

What: A significant warm up is expected this weekend into early next
week (February 24). High temperatures will reach into the 40s, with
overnight temperatures near or above freezing. Rapid lowland
snowmelt will lead to ponding of water in low lying areas,
especially in areas of poor drainage and/or in
basements/crawlspaces. Ice jam releases are also a concern on small
streams and/or creeks, and may lead to localized flooding. Rain
showers will bring precipitation totals up to 0.20 inches across
valley areas Sunday into Monday, with upwards of 0.50 inches in the
higher terrain.

When: Beginning Saturday afternoon and continuing through Monday
afternoon. Snowmelt will escalate during the day on Sunday.

Monitor the latest weather and river forecasts from the National
Weather Service at weather.gov/Missoula or water.noaa.gov/wfo/mso.