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
Texas and Oklahoma Severe Chances Friday

Texas and Oklahoma Severe Chances Friday

Another round of severe storms will be possib

22 May 2026 7:15 PM
Severe Storms, Heavy Rain Target the Southeast

Severe Storms, Heavy Rain Target the Southeast

Heavy rain has already hit numerous areas in

22 May 2026 7:15 PM
Repeated Rain Raising the Flood Threat

Repeated Rain Raising the Flood Threat

A slow-moving frontal boundary that brought n

22 May 2026 7:05 PM
NOAA Releases Summer Outlook, Above Average Temperatures Expected

NOAA Releases Summer Outlook, Above Average Temperatures Expected

The National Oceanic and Atmospheric Administ

22 May 2026 7:05 PM
NOAA Predicts Below Normal 2026 Hurricane Season

NOAA Predicts Below Normal 2026 Hurricane Season

NOAA has released their predictions for the 2

22 May 2026 12:00 PM
CALIFORNIA: Wildfires Prompt Evacuations

CALIFORNIA: Wildfires Prompt Evacuations

SIMI VALLEY, CA - On Monday, May 18th in Vent

22 May 2026 2:00 AM
Rockies Brace for Snow, Severe Storms as Cold Front Moves In

Rockies Brace for Snow, Severe Storms as Cold Front Moves In

ROCKIES - Through the rest of the week, an up

21 May 2026 5:30 PM