Hydrologic Outlook issued March 24 at 12:09PM MDT by NWS Pocatello ID

ESFPIH

Temperatures today through Thursday will be well above averages,
increasing low and mid elevation snowmelt and runoff. Standing water
in typical low spots may occur, but we’ll also likely begin seeing
the swelling of smaller creeks and tributaries that feed the larger
streams and rivers. This may even push some streams and creeks above
bankfull causing minor flooding and bank erosion due to the higher
flows.

The warm temperatures will peak Wednesday with afternoon highs
reaching above 60s and some locations in the South Hills and lower
Snake Plain getting above 70 degrees. These will be the warmest
readings of the year, thus far and will likely challenge daily
records. While daytime high temperatures will garner most of the
attention, the warm overnight low temperatures will likely remain
well above freezing through Thursday, exacerbating snowmelt through
the overnight hours.

A cooldown is forecast to arrive late in the week with temperatures
Friday and Saturday dipping back down towards normals, and overnight
lows back to near freezing by Saturday morning. This cooldown,
however, will be accompanied by increasing rain chances which could
add to the runoff concerns.

Stay away from fast moving water, swollen river banks and never
attempt to cross flowing water over roadways.