Subj : HVYRAIN: Excessive Rainfall Discussion
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Sun Dec 25 2022 08:10:33

FOUS30 KWBC 250810
QPFERD

Excessive Rainfall Discussion
NWS Weather Prediction Center College Park MD
309 AM EST Sun Dec 25 2022

Day 1
Valid 01Z Sun Dec 25 2022 - 12Z Sun Dec 25 2022

....THERE IS A MARGINAL RISK OF EXCESSIVE RAINFALL FOR PORTIONS OF
COASTAL WASHINGTON AND NORTHERN OREGON...

A pair of surface waves will bring a couple of rounds of moderate
rainfall to the coastal ranges of the Pacific Northwest on this
Christmas day. The first round of rainfall will arrive with a weak
cold front this afternoon. The second round of rainfall will
arrive early Monday morning as a stronger cold front supported by
an upper-level shortwave trough moves into the region. PWATs will
remain modest at around an inch throughout the 24 hour period.
Rain rates will remain relatively low as well at around 0.1in/hr
at their peak. The heaviest rainfall footprint is expected to
occur over the Olympic mountains where temperatures are expected
to remain above freezing.

Kebede


Day 2

The Day 2 outlook will be updated by 0830Z.


Day 3

The Day 3 outlook will be updated by 0830Z.


Day 1 threat area: https://urldefense.com/v3/__https://www.wpc.ncep.noaa.go=
v/qpf/94epoints.txt__;!!DZ3fjg!7fLR9lLMBONJgnycYE18danJ0GHrH3eahsyV8nYKAiff=
ercYItVm1NgGKfw-hhxg3TljgT5Udwc1pUTVbNsDx4D8mCQ$=20
Day 2 threat area: https://urldefense.com/v3/__https://www.wpc.ncep.noaa.go=
v/qpf/98epoints.txt__;!!DZ3fjg!7fLR9lLMBONJgnycYE18danJ0GHrH3eahsyV8nYKAiff=
ercYItVm1NgGKfw-hhxg3TljgT5Udwc1pUTVbNsDxzeghtk$=20
Day 3 threat area: https://urldefense.com/v3/__https://www.wpc.ncep.noaa.go=
v/qpf/99epoints.txt__;!!DZ3fjg!7fLR9lLMBONJgnycYE18danJ0GHrH3eahsyV8nYKAiff=
ercYItVm1NgGKfw-hhxg3TljgT5Udwc1pUTVbNsDgqidAHg$=20


$$



=3D =3D =3D
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