Rain showers were observed in the Columbia Basin early Tuesday as a disturbance passed through the Pacific Northwest. Most of the lowland precipitation has ended, though some showers remain possible into the daytime hours with the highest chance of these being along the Blue Mountains and northeast toward Ritzville. A few rumbles of thunder are […]
Winter making a return with cooler weather expected for the Tri-Cities next week
Afternoon highs in the Tri-Cities have been running above average for the last several days in the Columbia Basin with some places even approaching 70° late last week. These mild conditions are likely to come to an end with a strong upper level trough diving south out of Canada and into the Pacific Northwest. While […]
All-time records may fall in the Columbia Basin with the upcoming heatwave
An unusually strong area of high pressure is forecast to build over the Pacific Northwest during the next several days. The drought in place across much of the West (including the Columbia Basin) also adds a little to what temperatures the region may see. With soil moisture values low, there is little if any water […]
Columbia Basin now experiencing extreme drought
The National Drought Mitigation Center updates their Drought Monitor every Thursday, outlining the geographic details of drought conditions throughout North America. In today’s update, the extreme drought category was expanded to include much of Eastern Washington from the Tri-Cities northeast toward the Spokane area. Previously, only small sections near Prosser and Waitsburg were seeing extreme […]
Record highs in the Columbia Basin Wednesday, fire weather watch Friday with cool down expected
The Tri-Cities Airport observed its first 100 degree reading Wednesday afternoon thanks to this early June heatwave, leading to a new record. The preliminary high temperature was 104°, beating the old record of 103° set in 1986. A heat advisory remains in effect for the Columbia Basin until 20:00 Thursday with upper 90s likely for […]
Heat advisory for the Columbia Basin extended to Thursday
Early Monday morning, the National Weather Service issued a heat advisory for the Columbia Basin. That advisory will still start at 11:00 Tuesday but now extends to 20:00 Thursday. It includes the Tri-Cities, Yakima, Walla Walla, Hermiston, and surrounding areas. FORECAST This heatwave comes just in time for the start of meteorological summer, which begins […]
Widespread flood event not expected with lowland thaw
The lowlands of the Inland Northwest should lose much of their snow this week as high temperatures slowly rise into the 40s. While some flooding may occur in small streams and low lying areas, larger rivers like the Umatilla, Walla Walla, and Yakima are forecast to remain below flood stage. The snow certainly is deep, […]
Relief on the way with cooler temperatures starting Wednesday
The heat wave that is gripping the Columbia Basin will draw to a close over the next day or so. The upper-level ridge of high pressure influencing the pattern over the Inland Northwest will start moving to the east, allowing a trough located offshore to migrate closer to the Pacific Northwest. With the approach of […]
False fall drawing to a close; highs above 105° expected
A ridge of high pressure will build over the next couple days, bringing a steady climb to high temperatures across the Columbia Basin for the remainder of the week. Current indications are that highs will reach their peak Sunday with highs at or above 105°. The warmest locations will be in the lower elevations, such […]
Highs around 110° for the Columbia Basin
High pressure will remain in place over the region through Friday. This coupled with southerly flow thanks to a deepening low in the Pacific will amplify already hot temperatures in the Inland Northwest, prompting the National Weather Service to issue an excessive heat warning for the Tri-Cities and surrounding areas. This warning goes into effect […]