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
Weekend Closes With More Storms

Weekend Closes With More Storms

The peak of spring severe weather season is f

13 Apr 2026 2:00 AM
Active Pattern This Week Across U.S.

Active Pattern This Week Across U.S.

WHAT TO EXPECTWe continue to see the busy Apr

13 Apr 2026 1:55 AM
Feeling Like Summer This Week

Feeling Like Summer This Week

We're not really that close to the solstice.

13 Apr 2026 1:45 AM
Stormy Pattern Continues for West Coast

Stormy Pattern Continues for West Coast

A series of storms is lining up to impact the

12 Apr 2026 7:50 PM
CSU Releases First Hurricane Forecast for 2026

CSU Releases First Hurricane Forecast for 2026

Spring is in full swing which means it's time

12 Apr 2026 1:30 AM
Masters Forecast: No Rain, No Delays, Just Golf

Masters Forecast: No Rain, No Delays, Just Golf

The Masters Tournament in Augusta is expected

11 Apr 2026 8:00 AM
Severe Weather Reloads Today

Severe Weather Reloads Today

Large hail for Kansas last night! Thursday wa

10 Apr 2026 8:40 PM