Back-to-Back Pacific Storms to Impact the West Coast; Heavy Snow in the Central Appalachians

Back-to-back powerful Pacific storm systems to impact the Pacific Northwest and northern California through the end of this week with heavy rain, flooding, strong winds, and higher elevation mountain snow. A strong, long-duration atmospheric river will accompany the Pacific storms, bringing excessive rainfall and flash flooding to southwest Oregon and northwest California through the week. Read More >

Monsoon Moisture Continues Through Tuesday; Drier Weather to Follow

A persistent plume of monsoonal moisture stretching into the Four Corners region will continue to result in daily risks for scattered showers and thunderstorms through Tuesday, particularly across the central and southern mountains near the Continental Divide. With plenty of moisture to work with, these showers and storms will be capable of producing moderate to heavy rain, mainly during the afternoons and evenings. There will likely be enough flow in the atmosphere to keep storms moving, but if storms repeatedly move over the same locations, especially burn scars, localized flash flooding would be possible. In addition to the potential for heavy rain, frequent lightning and gusty winds of 40-50 mph will also be possible in the strongest storms. If you will be venturing outside over the next few days, make sure to know the forecast before you head out and have a way to receive the latest weather information.

The Monsoon Setup Through Tuesday

Expected 3-Day Rainfall Totals Courtesy of the Weather Prediction Center.

Turning Warmer and Drier Wednesday and Beyond

The plume of monsoonal moisture that has been anchored over the Four Corners region will shift to the east on Wednesday. In its wake, westerly winds will bring much drier air into the Great Basin, eastern Utah and western Colorado through the end of the week. As a result, the occasionally cloudy and showery weather will be replaced by a sunnier sky and temperatures rising back to near or even slightly above normal. The drier air will also drastically reduce the chances for showers and thunderstorms across the region, though a few isolated storms can still pop-up each day in the higher terrain closest to the Continental Divide.

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Back-to-Back Pacific Storms to Impact the West Coast; Heavy Snow in the Central Appalachians

Monsoon Moisture Continues Through Tuesday; Drier Weather To Follow