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) […]
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 […]
El Niño to collapse by summer, La Niña forecast fall and winter 2024-25
Strong El Niño conditions were observed over the winter of 2023-24, leading to long lasting periods of split flow in the jet stream aimed at Western North America. This is a typical El Niño pattern, where the northern split persistently aims storms at southeast Alaska and the southern branch aims at California. Despite this, Oregon […]
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 […]
Cold season temperature inversions
From about November to February temperature inversions accompanied by low clouds and fog are a common weather feature in the Columbia Basin. These are not unique to the Columbia Basin with many valleys throughout the Western United States and the world also experiencing strong inversions, including the Salt Lake City area in Utah and Almaty, […]
List of new Tri-Cities temperature records from the July 2022 heatwave
The heatwave that gripped the Pacific Northwest since the last week of July is finally drawing to a close, leaving behind several new temperature records. This event came during what is climatologically the hottest time of the year for the Tri-Cities meaning that the bar was already pretty high for temperature records. This heatwave extended […]
A list of Tri-Cities temperature records broken by this week’s heat wave
Final update: July 2, 2021 at 06:10 PDT. Details below. As we head into July, the heat wave that gripped the region over the past week or so is waning. It leaves behind numerous new temperature records throughout the Pacific Northwest as well as possibly hundreds of deaths and some large wildfires. This article is […]
Tri-Cities drier and warmer in updated NOAA weather averages being released
When discussing weather, there is a lot of comparison to “average” or “normal” conditions in a given place. These represent an expected temperature, precipitation, or other value averaged over a 30-year period for stations around the world. The National Oceanic and Atmospheric Administration (NOAA), parent agency of the National Weather Service (NWS), calculates these averages […]
Is Easter in the Tri-Cities usually windy and cool?
This blog post is a response to the following question, which I received over on my Facebook page – Tri-Cities Weather: Mark, I remember all the Easters here in the Tri Cities as being WINDY and COOL. Never weather good enough to dress up nice for Easter Sunday. Is my memory faulty or is it […]
Tornado climatology of the Columbia Basin
This post focuses on tornado statistics in the Tri-Cities and Columbia Basin. For specific details about the Richland tornado that happened on March 31, head over to this AgWeatherNet article that I contributed to. Tornadoes are a rare occurrence in the Columbia Basin, but they aren’t unheard of. This is something that we were reminded […]