Flood Potential Outlook
Issued by NWS Pendleton, OR

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FGUS76 KPDT 181119
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Hydrologic Outlook
National Weather Service Pendleton OR
419 AM PDT Wed Oct 18 2017

...Periods of rain, heavy at times, will increase the risk of
flooding through the upcoming weekend...

Several moisture laden weather systems will be moving through the
Pacific Northwest through the rest of the week and into the
weekend. These systems are expected to produce heavy rain along
and just east of the crest of the Washington Cascade mountains.
At this time, the greatest threat of heavy rain looks to be
later today through Thursday and again Saturday into Sunday. If
the current forecast holds, excessive precipitation amounts are
possible for the upcoming weekend.

Total precipitation amounts for today through early Friday morning
are expected to range from 1 to 3 inches, with the highest amounts
near the Cascade crest. Additional precipitation amounts Friday
through Sunday night could range from 2 to 5 inches...again the
highest amounts will be along the Cascade crest.

Snow levels will be near 6000 feet on Thursday...falling to less
than 4500 feet Thursday night and Friday. On Saturday, snow
levels will start off around 4000 feet but rise to near 7500 feet
by late day and at night.

The Jolly Mountain and Norse Peak burn areas are more susceptible
to flooding due to the bare ground with increased runoff and the
possibility of rock slides and debris flows.

People living near or downstream of the burn areas, are urged to
pay attention to the latest forecasts as this weather pattern
evolves.

$$



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