Hilary Impacts Linger - Moisture Arrives to PNW

news image
Top Stories
22 Aug 2023 1:50 PM

Hilary is no longer a tropical threat, but still heavy rainfall from the Pacific will stream northward into the western U.S. Southerly flow will transport moisture from Hilary north into the western states, and terrain enhancement could mean a few stronger storms.

We will be focusing on a corridor of moisture through Arizona and Utah, that is around I-15. Heavy rain will also impact the Northwest, which could lead to mudslides and debris flow as a result. The Rockies of Idaho should be able to handle the moisture a bit better compared to southern California, but the flood threat remains. Our primary concern is heavy rain and flash flooding. As evidenced by Sunday's rainfall, 2-3" of rain can turn creeks into rivers and create big issues.

As a result of the heavy rainfall threat there are flood watches in effect for southern Utah and much of the norhtner Rockies. Our primary concern will be for recent area burn scars and mudslides & debris flow.

Join WeatherNation for coverage on Hilary's damage and lingering threat, always streaming 24/7.

All Weather News
More
NHC Monitoring Two Areas in the Atlantic

NHC Monitoring Two Areas in the Atlantic

Tropical Storm Dolly formed in the Atlantic o

29 Aug 2026 11:25 AM
Karina & Lowell Named in the Eastern Pacific

Karina & Lowell Named in the Eastern Pacific

Thursday afternoon, two areas of investigatio

29 Aug 2026 1:15 AM
Days of Severe Weather For The Plains

Days of Severe Weather For The Plains

It has been an active summer for portions of

29 Aug 2026 1:10 AM
Extreme Heat In Los Angeles and the Southwest

Extreme Heat In Los Angeles and the Southwest

High pressure continues to dominate the Sout

29 Aug 2026 1:05 AM
East Coast Storm Threat Lingers Friday

East Coast Storm Threat Lingers Friday

Strong storms and flash flooding hammered the

28 Aug 2026 12:40 PM
El Nino Pushes Sharks into Southern California Beaches

El Nino Pushes Sharks into Southern California Beaches

During El Nino, temperatures across the Easte

28 Aug 2026 12:00 PM
Ross Fire Burning West of Fort Worth

Ross Fire Burning West of Fort Worth

A wildfire broke out in the Lone Star State o

27 Aug 2026 11:30 AM