Hydrologic Outlook
Hydrologic Outlook
NVC007-011-013-033-261800-
Hydrologic Outlook
National Weather Service Elko NV
1048 AM PDT Tue Mar 25 2025
...Warmer than normal temperatures will allow for enhanced snowmelt
and subsequent runoff this week...
As high pressure builds across the Great Basin through the
beginning of the week, near to record warm high temperatures are
forecast. This will help to increase the melt rate of mid- and
high-elevation snowpack, which will make it into area creeks and
streams. Faster responding creeks that will need to be watched for
higher flows include Martin Creek in Humboldt county, the Owyhee
River, Bruneau River, and Salmon Falls Creek in Elko county. Though
flooding is not expected at this time, water in area creeks and
streams will be flowing strongly thru at least midweek. Residents
and outdoor enthusiasts are urged to use caution when walking along
riverbanks as run off water will be flowing rapidly with cold spring
melt water. Hypothermia can occur rapidly if someone were to fall in
while swift flows can carry a person downstream.
$$
99
Hydrologic Outlook
IDC035-049-272000-
Hydrologic Outlook
National Weather Service Missoula MT
1038 AM MDT Tue Mar 25 2025
...Rises on small streams and creeks through Thursday due to warm
temperatures and accelerated snowmelt...
Where: Idaho and Clearwater Counties
What: Temperatures in the 60s and 70s are anticipated for the mid
elevations through Thursday, with overnight temperatures not
anticipated to drop below freezing. This will accelerate snow melt
in the mid and upper elevations, leading to rapidly rising water
levels on small streams and creeks. Flooding is not anticipated at
this time, though Orofino Creek in Orofino may approach action
stage, with a low probability of reaching minor flood stage.
When: Through Thursday, March 27.
People with activities near creeks and streams should exercise
caution as flows will be swift and cold. Monitor the latest weather
and river forecasts from the National Weather Service at
weather.gov/Missoula or water.noaa.gov/wfo/mso.
$$
Hydrologic Outlook
ORZ049-050-502-503-505>509-WAZ029-030-521>523-272000-
Hydrologic Outlook
National Weather Service Pendleton OR
207 PM PDT Mon Mar 24 2025
...RISES EXPECTED ON RIVERS AND STREAMS THURSDAY INTO THIS WEEKEND...
Temperatures in the 60s and 70s through Wednesday will increase snow
melt of the mid and high elevation snow pack. This will be followed
by mountain rain Wednesday night through Friday. Saturated mountain
soils will allow for efficient runoff and will increase water levels
on mountain rivers, creeks and streams.
The primary concern is the John Day River at Service Creek which is
forecast to reach minor flood stage Thursday morning through Friday
afternoon, peaking early Friday morning. The Grande Ronde River at
Troy and the Naches River at Cliffdell and Naches are expected to
reach action stage Wednesday afternoon through at least Friday
morning but have a low probability of reaching minor flood stage.
Several other rivers are forecast to approach but not quite reach
action stage. Smaller creeks and streams may also have significant
rises but at this time they do not appear to reach levels that would
cause flooding.
People with activities near creeks and streams should exercise
caution as flows will be swift and very cold water can quickly lead
to hypothermia if someone were to fall into the water.
Those with interests along rivers, creeks and streams should
continue to monitor forecasts as there is some uncertainty in the
expected water levels. Stay tuned to for the latest forecast updates
along with any flood warnings or advisories that may be issued.
$$
GP
Hydrologic Outlook
IDZ056>068-070-071-073-075-252100-
Hydrologic Outlook
National Weather Service Pocatello ID
1209 PM MDT Mon Mar 24 2025
...Warm Temperatures this Week May Lead to Flood Impacts from
Efficient Low and Mid Elevation Snowmelt...
Temperatures today through Thursday will be well above averages,
increasing low and mid elevation snowmelt and runoff. Standing water
in typical low spots may occur, but we`ll also likely begin seeing
the swelling of smaller creeks and tributaries that feed the larger
streams and rivers. This may even push some streams and creeks above
bankfull causing minor flooding and bank erosion due to the higher
flows.
The warm temperatures will peak Wednesday with afternoon highs
reaching above 60s and some locations in the South Hills and lower
Snake Plain getting above 70 degrees. These will be the warmest
readings of the year, thus far and will likely challenge daily
records. While daytime high temperatures will garner most of the
attention, the warm overnight low temperatures will likely remain
well above freezing through Thursday, exacerbating snowmelt through
the overnight hours.
A cooldown is forecast to arrive late in the week with temperatures
Friday and Saturday dipping back down towards normals, and overnight
lows back to near freezing by Saturday morning. This cooldown,
however, will be accompanied by increasing rain chances which could
add to the runoff concerns.
Stay away from fast moving water, swollen river banks and never
attempt to cross flowing water over roadways.
$$
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