National Weather Service United States Department of Commerce

Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Tri-Cities Airport (KPSC) WA Weather Warning Monitor Page

 

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Most Recent KPSC TAF

Terminal Aerodrome Forecast   Issued: 12/24/2025 01:30:52 PM UTC


392
FTUS46 KPDT 240530
TAFPSC
TAF
KPSC 240530Z 2406/2506 32004KT P6SM BKN120 OVC250
FM250000 25005KT P6SM OVC100
FM250200 18003KT P6SM BKN250=

 


Most Recent Airport Weather Warning (Note: The date and time the product was issued)

Airport Weather Warning   Issued: 12/19/2025 01:57:00 PM UTC


684
WWUS86 KPDT 190557
AWWPSC
WAC021-191600-

Airport Weather Warning for the Tri-Cities Airport
National Weather Service Pendleton OR
957 PM PST Thu Dec 18 2025

An Airport Weather Warning has been issued for the Tri-Cities
airport.

* WHAT...Wind gusts near 40 knots expected.

* WHEN...Between 10 PM Thursday and 8 AM Friday .


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