Winter Storm Fern is gearing up to deliver a coast-to-coast punch, and the timeline matters if you want to stay safe and ahead of the chaos. You will see snow, ice, and a sharp plunge of Arctic cold arriving in waves that disrupt travel and daily life across dozens of states.
This guide breaks down what hits when, so you can plan, pivot, and protect what matters most. Keep reading to see how conditions evolve from first flakes to dangerous wind chills and lingering hazards.
Friday is the jump-start, when cold air dives into the Southern Plains and meets incoming Pacific moisture across Arizona, New Mexico, and West Texas. You will notice fast-changing skies, with light snow flipping to sleet or freezing drizzle in pockets where temperatures hover near freezing.
Early winter weather alerts expand east, signaling that roads could slick up quickly, especially bridges and overpasses.
By afternoon, a snow band stretches north into the central Plains and nudges the Midwest, while the South wrestles with thin but treacherous ice. Power flickers become possible where light icing collects on lines and tree limbs.
Even small accumulations can cause spinouts, so slow your pace, top off gas, and stash warm layers in your car.
Air travel begins to wobble as Dallas, Oklahoma City, and Albuquerque airports launch deicing cycles and delays spread. If you connect through big hubs, pad your schedule and watch rebooking options.
Friday sets the stage for stronger impacts to come, and getting errands done now reduces stress later.
Saturday ramps up quickly as Fern strengthens and slides east. Expect steadier snow from the central Plains into the Midwest, with sleet mixing in across the Ohio Valley and Lower Mississippi Valley.
Farther south, a cold wedge supports freezing rain that creates a glassy sheen on roads, porches, and power lines.
Travel takes a hard turn. You will see cancellations stack up at airports from Dallas to Atlanta, and ripple delays reach the Northeast by evening.
If you must drive, target daylight hours, keep your phone charged, and carry traction aids, snacks, and water in case traffic stalls for hours.
Snow ratios vary with temperature, so totals may jump where the column cools just enough. Plow crews will make progress, but fresh bursts and wind will quickly cover treated pavement.
Saturday is your window to reschedule plans, postpone long trips, and hunker down before the East loads up on Sunday.
Sunday delivers the most disruptive punch for the Mid Atlantic and Northeast as Fern spreads heavy snow, sleet, and pockets of freezing rain along the I-95 corridor. You will feel the storm’s reach from Washington D.C. through Philadelphia and New York City into New England, with whiteout bursts possible in heavier bands.
Some communities could top a foot where snow stays dominant.
Ice is the wild card near the rain snow line, raising the risk of downed limbs, power outages, and impassable side streets. Stay off roads if you can.
If you must head out, pack blankets, a shovel, and sand, and tell someone your route and expected return.
Transit suspensions and airport gridlock are likely as crews struggle to keep pace. Expect school and business closures to be announced early, and use the day to conserve device power, check neighbors, and clear entryways in short shifts.
Sunday is about safety, patience, and staying flexible until winds ease and plows widen lanes.
By Monday, Fern’s main shield exits, but the air behind it turns brutally cold. Arctic wind funnels south, driving wind chills well below zero in spots where power restoration continues.
You will hear snow squeak underfoot, see plumes of drifting powder, and watch refreeze set in each evening.
Black ice becomes the stealth hazard on side streets, parking lots, and shaded bridges. Even if the forecast is dry, temperature swings keep meltwater slick and dangerous.
Keep faucets dripping in vulnerable pipes, crack cabinets for airflow, and bring pets indoors until the deep chill relaxes.
Commutes will remain slower than normal as crews scrape compacted snow and widen shoulders. Recheck schedules for delayed openings, space heaters from curtains, and install fresh batteries in carbon monoxide detectors.
The quiet after Fern hides risk, so move carefully, layer up, and plan for several days of cold managed living before a gradual thaw.





