Weather reports on whatever I decide to report on.
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 […]
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 […]
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 […]
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 […]
A line of strong storms associated with a low pressure system crossing California and a cold front moving down the coast on Wednesday afternoon produced two tornadoes in San Luis Obispo County just before 16:00. This area is located on the coast about 160 miles (260 km) west of Los Angeles. After a damage survey […]
Showers were already being observed in the Columbia Basin and Yakima Valley before 04:00 Monday thanks to an upper level low pressure system centered near Central Oregon. This pattern is pulling moisture up from the southeast in a setup similar to what occurs during monsoon season late in the summer. I’m labeling it a fake […]
Ridging is building over the American West today into the weekend, leading to a regional heat wave in the Pacific Northwest. Above average temperatures are forecast for the Columbia Basin, though things aren’t looking quite as warm as they were originally expected. The Tri-Cities can expect a high in the mid 80s on Friday and […]
Tri-Cities weather May 9, 2023 An upper level low pressure system is moving eastward into the Northern Rockies Tuesday morning. Rain showers and isolated thunderstorms, mostly south of the Tri-Cities, will taper off into midday as the low moves deeper into Idaho. Maybe some clearing midday before clouds from mountain thunderstorms develop this afternoon. An […]
Tri-Cities weather May 4, 2023 Partly cloudy skies to start the day. These are mostly high clouds drifting north from thunderstorms in mountains to the south and east. Increasing clouds for the remainder of the day which will moderate highs compared to yesterday. Look for temperatures reaching the mid to upper 70s. The Storm Prediction […]
Warm temperatures in the Inland Northwest this week have accelerated snowmelt. Broadly speaking, the snowpack in the Columbia River watershed remains healthy though it has dropped rapidly relative to climatological norms the last few days. Rapid melt periods are common during Spring and early Summer and the rate is likely to decrease into the weekend […]