Valid Thursday, February 28, 2019 to Monday, March 11, 2019

Summary of Forecasts and Hazards

US Hazards Outlook
NWS Climate Prediction Center College Park MD
300 PM EST January 15 2021

Synopsis: Mid-level low pressure remains favored to develop across the western portion of the lower 48 to sustain an elevated risk of potentially hazardous below normal temperatures, heavy precipitation, and high elevation snow during week-2. Developing mid-level low pressure is favored to potentially bring much below average temperatures over portions of the eastern U.S. late in the outlook period. Offshore flow forecast is likely to bring below-normal precipitation over southern Mainland Alaska and the Panhandle.

Hazards

• Moderate risk of much below normal temperatures across parts of the Pacific Northwest, Northern Intermountain, and Northern Rockies, Sat-Sun, Jan 23-24.
• Slight risk of much below normal temperatures across parts of the Pacific Northwest, the Great Basin, Rockies, and the Great Plains, Sat-Wed, Jan 23-27.
• Slight risk of much below normal temperatures across parts of the Lower Mississippi and Tennessee Valley, the Southern Appalachians, the Mid-Atlantic, and the Southeast, Wed-Fri, Jan 27-29.
• Moderate risk of heavy precipitation for northern California, Mon-Wed, Jan 25-27.
• Slight risk of heavy precipitation for parts of California and southern Oregon, Sat-Fri, Jan 23-29.
• Moderate risk of heavy snow for the higher elevations of the Sierra Nevadas of northern California, Mon-Wed, Jan 25-27.
• Slight risk of heavy snow for the higher elevations of the Sierra Nevadas and the Cascades, Sat-Fri, Jan 23-29.
• Slight risk of heavy snow for the higher elevations of northern Arizona and southern Utah, Sat-Mon, Jan 23-25.
• Slight risk of high winds over portions of the Great Basin, Southwest, and Southern Rockies, Sat-Mon, Jan 23-25.

Detailed Summary

For Monday January 18 - Friday January 22: WPC Days 3-7 U.S. Hazards

For Saturday January 23 - Friday January 29:

Forecaster: Nick Novella

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Please consult local NWS Forecast Offices for short range forecasts and region-specific information.