The warmest day of the week was able to produce record highs in the Tri-Cities and Walla Walla on March 19. Additionally, Hermiston tied their existing record for that date. Low elevation spots on the Hanford Site, around the Tri-Cities, and in the Hermiston area were able to tap 80°F (27°C) with widespread 70s (21-26°C) […]
Tri-Cities record first 70°F high of 2024
Upper level ridging continues to dominate conditions throughout the Pacific Northwest. This has produced highs above 70°F (21°C) in many lowland locations over the weekend. Quillayute, near Forks on the Olympic Peninsula, even recorded a high of 80°F (27°C) on Saturday. The Tri-Cities joined the club on Sunday with a high of 73°F (23°C). March […]
Portland gets first high above 70°F for 2024
Friday brought Portland’s first afternoon with temperatures above 70°F (21°C) for 2024 with a high of 71°F (22°C) at Portland International Airport. Numerous other stations throughout lowland areas of Western Oregon and parts of Western Washington also achieved 70°, though the Puget Sound Region missed out. This comes as a ridge of high pressure builds […]
Strong ridge to develop over the Northwest, sunny skies and warm temps forecast
Leftover moisture and cold air aloft will be enough for scattered showers and isolated t-storms throughout the Pacific Northwest on Tuesday. These storms will be more widespread along and west of the Cascades and some may produce small hail and/or graupel. The Columbia Gorge, Hermiston, and the Tri-Cities will be breezy Tuesday into Wednesday as […]
Third cold front in a row to pass through Pacific Northwest on Monday
The third system in a train that started late last week is forecast to reach the Pacific Northwest during the day Monday. High clouds from this are already reaching the Interstate 5 corridor as of 07:00. Rainfall totals through Tuesday reaching half an inch (10 mm) are forecast for Portland, Seattle, and Vancouver with higher […]
Next train of storms approaches Pacific Northwest, rain and mountain snow this weekend
Much of the Northwest is enjoying a break in precipitation after persistent regional storms and post-frontal showers. A low pressure system heading for Alaska will bring that to an end from north to south with the first of several cold fronts moving in. Rain and mountain snow from this begins during the day Thursday for […]
Pacific Northwest snowpack improves at the start of March after week of snow
A prolonged pattern of upper level troughing and repeated regional storm systems have added quite a bit of snow to mountains of the Pacific Northwest over the past week. As of the end of the day on March 4, the snow-water equivalent (SWE) value for the Northwest was 88% of the median for this time […]
Columbia Basin dry for the weekend but showers return Monday
Some drizzle was observed in the Tri-Cities area Thursday and Friday as a low pressure system worked its way through the region. That low is on its way east to bring some snow to the Plains and Canadian Prairies (with sharp temperature drops in places like Winnipeg). The Columbia Basin will be in between regional […]
Tri-Cities no longer experiencing drought or abnormally dry conditions
For the first time since November 2019, the Tri-Cities is no longer listed as having drought or abnormally dry conditions according to the National Drought Mitigation Center, which maintains the U.S. Drought Monitor. The scale this center uses starts with abnormally dry (D0) then proceeds from moderate drought (D1) to exceptional drought (D4). At the […]
Upper-level trough bringing quick cool down Thursday to Saturday in the Tri-Cities
One last day of near 100° highs are expected in the Tri-Cities on Wednesday before an upper level trough passes through the region. This is forecast to place the jet stream right over the Washington/Oregon border, allowing cooler air from the north to dip into the Pacific Northwest. This trough in the upper level flow […]