Poor Air Quality Continues in Parts of the Northwest

news image
Special Stories
18 Nov 2019 4:00 AM
A large ridge of high pressure aloft over the Northwest has lead to very stagnant air and poor air quality over the last couple of weeks.  People with respiratory issues will need to monitor the forecast. Here is the very latest:

Alerts

The poor air quality continues over areas of Washington and Idaho with Air Stagnation Advisories in effect.  Cities like Medford, Boise, and Twin Falls will need to pay extra attention to any outdoor activities.  This is especially true for those that have respiratory issues.

Forecast

High pressure once again dominates the weather pattern in the Northwest. The high has been responsible for very little mixing in the atmosphere, leading to the poor air quality conditions.  Valleys will be most susceptible to the worst air quality. A series of storm systems will drop across the Northwest into the middle of the week, which should improve air quality and bring an end to the air stagnation conditions.  
All Weather News
More
Severe Thunderstorms Expected Across The South Friday

Severe Thunderstorms Expected Across The South Friday

A frontal boundary stretched across half of t

2 May 2025 12:40 PM
Big Pattern Shake Up for the West Upcoming

Big Pattern Shake Up for the West Upcoming

A huge digging upper level low is heading fro

2 May 2025 11:55 AM
Rainy Forecast Could Disrupt Kentucky Derby Week Events

Rainy Forecast Could Disrupt Kentucky Derby Week Events

Louisville is gearing up for the 151st Kentuc

2 May 2025 11:30 AM
Flooding Threat Continues in Oklahoma Friday Morning

Flooding Threat Continues in Oklahoma Friday Morning

The forecast remains wet in the southern plai

2 May 2025 3:00 AM
Storms Back in the Ohio Valley and Northeast Tonight

Storms Back in the Ohio Valley and Northeast Tonight

OHIO VALLEY - After a very stormy and wet mon

2 May 2025 2:50 AM
Rain For Denver, Snow For The Mountains

Rain For Denver, Snow For The Mountains

A cold front and area of low pressure slide t

1 May 2025 12:25 AM
Rain This Week Douses Fire Concerns Today

Rain This Week Douses Fire Concerns Today

Fire weather concerns have been all too commo

29 Apr 2025 6:40 PM