Watches, Warnings & Advisories



One product issued by NWS for: 2 Miles NNE Mount Bachelor OR

Hydrologic Outlook

Hydrologic Outlook
ORZ049-050-502-503-507-509-WAZ029-030-522-523-040000-

Hydrologic Outlook
National Weather Service Pendleton OR
1128 AM PDT Sun Jun 2 2024

...AN ATMOSPHERIC RIVER WILL BRING MODERATE RAINFALL LEADING TO
RISES ON STREAMS AND RIVERS SUNDAY AFTERNOON AND MONDAY...

Synopsis: An atmospheric river will bring abundant moisture to the
region with an incoming system beginning this afternoon and
continuing  through Monday. Rainfall amounts of 1 to 2 inches are
expected along the Oregon and Washington Cascade crest and in the
higher mountains of northeast Oregon and southeast Washington. These
amounts may be increased locally by snow melt from what remains of
the high mountain snowpack.

Where: The East Slopes of the Washington and Oregon Cascades, The
Northern and Southern Blue Mountains, The Blue Mountain Foothills of
Washington and Oregon, Wallowa County and the Grande Ronde Valley.

When: Rain will arrive along the Cascades Sunday afternoon and in
the eastern mountains late Sunday afternoon and evening. Rain will
taper off Monday afternoon and evening.

What: The precipitation and possible snow melt will lead to rises on
area creeks, streams and rivers. Rivers are low enough that only the
Naches River at Cliffdell and the Naches River at Naches are
expected to reach bankfull Monday and only by a few inches at those
locations. However, with the heavier periods of rain, rapid rises
will be possible on smaller streams and creeks, especially in
Wallowa County, and this is the main concern for the next couple of
days.

No further updates to this Hydrologic Outlook are anticipated.

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GP