The National Weather Service has issued an Extreme Cold Warning and a High Wind Warning for Washington, D.C., portions of central, northeast, northern, and southern Maryland, and northern Virginia. The alerts address dangerously low wind chills and strong northwest winds expected over the weekend.
The Extreme Cold Warning takes effect at 4 a.m. Saturday and continues until 10 a.m. EST Sunday. Dangerously cold wind chills around or lower than 10 degrees below zero are anticipated. Wind chills are forecast to stay below zero for at least 24 hours, starting Saturday morning and lasting through late Sunday morning. Prolonged outdoor exposure during this period is described as life-threatening, with risks of hypothermia and frostbite from unprotected skin exposure.
The High Wind Warning runs from 4 a.m. to 7 p.m. EST Saturday. Northwest winds of 20 to 30 mph are expected, with gusts up to 60 mph. These conditions could produce damaging winds capable of blowing down trees and power lines, leading to widespread power outages. Travel difficulties are anticipated, particularly for high-profile vehicles.
Impacts combine to heighten risks across the affected areas. Damaging winds threaten infrastructure and mobility, while extreme cold increases health hazards from hypothermia and frostbite. Officials note that being outdoors for extended periods could be life-threatening under these combined conditions.
A potential winter commuting hazard also exists for the Washington and Baltimore metro areas, central and southern Maryland, and northern Virginia through Friday evening. Light snow carries a 60 percent likelihood during the afternoon and evening commute, with the best chance through 7 p.m. Accumulations of a coating to an inch are possible. Untreated roads could become snow-covered and slippery quickly if the precipitation occurs, potentially causing hazardous travel and significant disruptions. Commuters are advised to allow extra time, consider public transportation, or use telework options.
Precautionary and preparedness actions include staying in lower home levels and avoiding windows during high winds while watching for falling debris or tree limbs. Drivers should exercise caution. Those going outside need to dress in layers with a hat, face mask, and gloves. Pets should remain indoors as much as possible, and outdoor animals require warm, dry shelter, food, and unfrozen water. Frequent checks on older family members, friends, and neighbors are recommended. Portable heaters must be used correctly, with no indoor operation of generators or grills. Residents without heat or shelter can call 211 or check local county or city websites for assistance.
The alerts stem from an Arctic air mass combined with strong winds, following light snow potential Friday evening.
