Weather Tomorrow: Live Hour-by-Hour Forecast, Severe Alerts & Must-Know Travel Tips

An unusually expansive winter storm surging eastward tonight will dictate much of tomorrow’s weather in the United States, bringing a volatile mix of heavy snow, crippling ice and severe cold to millions. Cold-weather headlines for tomorrow • Central & Southern Plains: Snow tapers in New Mexico and the Texas Panhandle before dawn, but 6-12 inches of existing accumulation keeps roads slick. Temperatures plunge below zero in the Panhandle. • Midwest & Ohio Valley: A swath of 8-15 inches barrels from Missouri through southern Illinois into Ohio by late afternoon, creating white-out commutes along I-70 and I-64. • Tennessee Valley to Carolinas: Prolonged sleet and freezing rain continue all day; ice totals of 0.25-0.75 inch threaten widespread power outages from northern Mississippi through western and middle Tennessee into western North Carolina. • Mid-Atlantic & Northeast: Snow arrives in Washington, D.C. before sunrise, reaches New York City by midday, and blankets Boston during the evening commute. Expect 5-10 inches south of the Mason-Dixon line, 8-14 inches from Philadelphia to interior New England, and localized 18-inch totals in the Berkshires. Coastal New Jersey and Long Island could see a change to sleet or glaze. • Gulf Coast: A cold front sparks strong thunderstorms from Louisiana to the Florida Panhandle tomorrow morning, but Arctic air follows quickly, dropping Pensacola and Mobile into the 30s by nightfall. • West Coast & Rockies: High-pressure dominance means calmer skies; Los Angeles enjoys partial sun near 67 °F while Seattle stays cloudy in the mid-40s. Mountain snow showers redevelop across the northern Rockies late day, but accumulations remain light. Travel impacts & safety tips 1. Avoid non-essential driving tomorrow in ice zones; fallen branches and power lines may block secondary roads. 2. Keep emergency kits stocked with batteries, blankets and chargers; sub-freezing air lingers for several days after the storm, prolonging restoration times. 3. If using generators during outages, operate them outdoors to prevent carbon-monoxide poisoning. 4. Pet owners across the Great Plains and Midwest should limit animals’ exposure; wind chills will drop to -20 °F in parts of Kansas and Oklahoma tomorrow night. Why this storm is different • Size: Snow, sleet or freezing rain will stretch more than 2,000 miles from New Mexico to Maine, a footprint rarely seen outside historic events. • Duration: Ice could accrue for 12-18 hours straight across portions of Arkansas, Tennessee and the Carolinas, raising the risk of “catastrophic” tree damage. • Follow-up cold: Record-setting Arctic highs replace the storm, locking in hazardous conditions through mid-week. Outlook beyond tomorrow Lake-effect snow bursts continue Tuesday downwind of the Great Lakes, while the next clipper system eyes the northern Plains mid-week. Meanwhile, California remains largely mild and dry, but rain may return to the Pacific Northwest by Friday. Key search phrases readers use tomorrow’s weather forecast, tomorrow weather map, snow totals tomorrow, ice storm tomorrow, freezing rain forecast tomorrow, weather tomorrow near me, travel forecast tomorrow, winter storm tomorrow USA Stay tuned to local National Weather Service offices for hour-by-hour updates, and check real-time advisories before heading out the door.