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
Eastern Pacific: Mario Fizzles, but Sends Moisture to California

Eastern Pacific: Mario Fizzles, but Sends Moisture to California

While the Atlantic has been relatively quiet

18 Sep 2025 12:50 AM
ATLANTIC: Gabrielle Forms in the Atlantic

ATLANTIC: Gabrielle Forms in the Atlantic

We are now a week after the climatological pe

18 Sep 2025 12:25 AM
Florida Rainfall: Nuisance or Beneficial?

Florida Rainfall: Nuisance or Beneficial?

The dry time has been a little hard to enjoy

18 Sep 2025 12:25 AM
Storms Slide Down the Plains

Storms Slide Down the Plains

CENTRAL U.S - A trough that came in from the

18 Sep 2025 12:20 AM
Northern Lights Close Out the Weekend For Many

Northern Lights Close Out the Weekend For Many

Did you see them? Many might have had better

15 Sep 2025 10:30 PM
Fall Color Starting to Show In Parts of the Lower 48

Fall Color Starting to Show In Parts of the Lower 48

Grab the pumpkin spice and apple cider donuts

15 Sep 2025 1:10 AM
Severe Storms Look More Likely This Afternoon

Severe Storms Look More Likely This Afternoon

A strong upper-level trough along with monsoo

14 Sep 2025 7:30 PM