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
Four Corners Expecting More Flooding Rain, Mountain Snow

Four Corners Expecting More Flooding Rain, Mountain Snow

A cut-off low-pressure system has been slowly

20 Nov 2025 2:40 AM
Record Heat Shifting East This Week

Record Heat Shifting East This Week

Another November day in the south and another

20 Nov 2025 2:00 AM
More Moisture for the West

More Moisture for the West

WEST - After heavy rain, heavy snow, and stro

20 Nov 2025 2:00 AM
Heavy Rain + Storms Target Texas and the Central U.S.

Heavy Rain + Storms Target Texas and the Central U.S.

WHAT TO EXPECT Temperatures have been hot in

20 Nov 2025 2:00 AM
A Record Breaking Thanksgiving Travel Week Expected

A Record Breaking Thanksgiving Travel Week Expected

It is that time of year again—when millions o

20 Nov 2025 1:20 AM
Hail Storms Moving Through the Ohio Valley

Hail Storms Moving Through the Ohio Valley

OHIO RIVER VALLEY - We have had multiple repo

19 Nov 2025 2:35 AM
Weekend System Brings Snow, Ice, & Storms to the Northeast

Weekend System Brings Snow, Ice, & Storms to the Northeast

OVERNIGHTWinter weather alerts remain in plac

17 Nov 2025 10:35 AM