NWS: Rain & snowmelt will lead to rising waters through Monday

NORTHEASTERN OREGON – The National Weather Service has issued a Hydrologic Outlook for a large portion of northeast Oregon, lasting through Monday afternoon.

View the NWS Outlook below:

(Hydrologic Outlook from the National Weather Service)

Hydrologic Outlook

ORZ049-050-502-503-505>507-509-WAZ029-030-521>523-210030-

Hydrologic Outlook

National Weather Service Pendleton OR

442 PM PST Wed Feb 19 2025

…MODERATE RAIN AND SNOWMELT DUE TO WARMING TEMPERATURES WILL LEAD

TO RISES ON STREAMS AND RIVERS THROUGH MONDAY AFTERNOON…

Synopsis: Rain and high mountain snow in the last 24 hours and

multiple systems this weekend and early next week will lead to

rising water levels on area streams and rivers. Rainfall amounts of

2 to 4 inches are expected in the Cascades and 1 to 2 inches in the

eastern Oregon mountains. In addition, temperatures will be rising

to the 40s and even lower 50s in the mountains which will lead to

snow melt adding even more water to rivers and streams. At this

point, the Naches River at Cliffdell is expected to barely reach

action stage for several hours early Monday before receding. Other

rivers in the Cascades and eastern Oregon mountains are forecast to

approach but stay below action stage. Rises will also be possible on

smaller streams and creeks.

Where: The Upper and Lower East Slopes of the Washington and Oregon

Cascades, The Simcoe Highlands, The Northern and Southern Blue

Mountains, The Blue Mountain Foothills of Washington and Oregon,

Wallowa County and the Grande Ronde Valley.

When: Rain will be ending tonight though more systems will bring

rain Friday night through Monday.

What: The precipitation and snow melt will lead to rises on area

creeks, streams and rivers. Rivers are low enough that only the

Naches River at Cliffdell is expected to exceed bankfull early

Monday for a few hours and only by a few inches. However, with the

heavier periods of rain and snow melt, rapid rises will be possible

on smaller streams and creeks as well. The Morrow County Sheriff`s

Office reported earlier today that the Upper Hinton Creek near

Heppner is out of its banks in a few places though any flooding is

minor and not a problem at this point. However, further rises on

streams and creeks will be a concern through the weekend into early

next week.

This Hydrologic Outlook will be updated as needed due to changing

conditions.

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