National Weather Service United States Department of Commerce

Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East; Severe Storm Threat in the Gulf States Sunday

A significant winter storm is underway, bringing widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Extremely cold air will follow, prolonging dangerous travel and infrastructure impacts into next week. Severe thunderstorms may produce damaging gusts and tornadoes across the eastern Gulf Coast states Sunday morning and afternoon. Read More >

 
Pre-Duty Controller Weather Briefing
The Pre-Duty Controller Weather Briefing is designed to increase controller situational awareness. It is produced by the Center Weather Service Unit three times daily. After hours or during changing weather this briefing may not represent the latest information. This product does not replace pilot pre-flight briefings.

 

KIAD
KDCA
KBWI
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DCA

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DC Metro Gate Forecast website here.

.AVIATION /00Z SUNDAY THROUGH THURSDAY/... VFR conditions continue this evening across all terminals as dry conditions continue thus far. Conditions will begin deteriorating first at KCHO and spread N/NE as light snow overspreads the area. As snow becomes heavier overnight, visibilities will hover between VLIFR and LIFR with periods of heavy snow likely. Precipitation type will primarily be snow at KMRB while mixed precipitation mixes in at other airports. Sleet begins mixing in first at KCHO around 12-14Z with the metro airports mixing in between 16-18Z with precipitation type becoming primarily sleet in the late afternoon. Additionally, KCHO will have a greater risk of significant freezing rain mixing in Sunday night. The freezing rain risk continues at KDCA, KIAD, KBWI, and KMTN Saturday night, but will likely occur just after 00Z. Precip should largely end by or shortly after 06Z/1am Monday. Plan for travel delays and cancellations that may linger into the first half of next week. After a lengthy period of restrictions, the winter storm will gradually pull away from the coast early Monday. Some residual low ceilings are possible on Monday morning, particularly across the eastern terminals. Winds behind the system will be northwesterly with gusts up to 20 to 30 knots. Winds remain elevated overnight, gusting 15 to 20 knots before diminishing throughout the day on Tuesday. AVIATION...AVS/KLW/CJL/CPB Update as of: 810 PM EST Sat Jan 24 2026

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