Snow Forecast Remains Uncertain From Richmond to Boston, but New Maps Show Highest Odds for 3–6+ Inches Along I-95 Sunday Into Monday

MID-ATLANTIC AND NORTHEAST — Forecast models remain unsettled with respect to Sunday–Monday snow potential, but new probability maps offer a clearer look at where impactful accumulations are most likely. With less than 48 hours until potential onset, confidence is growing that someone along the I-95 corridor from Virginia to Maine will see plowable snow — even if exact placement remains in flux.

The latest assessments focus on probabilities for 3+ inches and 6+ inches of snowfall across key population centers including Richmond, Washington, D.C., Philadelphia, New York City, and Boston.

3+ Inches: Strong Signal From D.C. to Coastal New England

The map outlining chances for at least 3 inches of snow shows:

• High probabilities across coastal sections of New Jersey, Long Island, eastern Massachusetts, and much of coastal Maine.
• Medium probabilities extending inland through Philadelphia, New York City, and into parts of Connecticut and Rhode Island.
• Portions of the Washington, D.C. metro and nearby areas also fall within higher-probability shading.
• Even parts of Richmond, Virginia, show some potential, though confidence decreases farther south.

This suggests that a widespread accumulating event is plausible for much of the urban corridor from the Mid-Atlantic into New England.

6+ Inches: Bullseye Focuses Near Coast

When looking at probabilities for 6 inches or more, the higher-end snowfall zone becomes more concentrated:

• Coastal New Jersey
• Long Island
• Eastern Massachusetts
• Portions of coastal Maine

These areas show the strongest signal for heavier snowfall potential.

Meanwhile, inland cities such as Philadelphia and New York City appear to be in a zone of moderate probability — meaning 6 inches is possible but not yet locked in.

The Washington, D.C. and Richmond areas show lower probabilities for 6+ inches compared to regions farther north and east, though accumulating snow remains possible.

Models Still Muddled — Placement Is Key

Forecasters emphasize that models remain “a muddled mess,” particularly in resolving:

• Exact coastal low track
• Strength and speed of storm intensification
• Placement of mesoscale snow bands
• Rain/snow line near southern zones

Small track adjustments could shift the heavier snow axis 50–100 miles, dramatically changing totals for cities along I-95.

For example:

• A slightly offshore solution would concentrate the heaviest snow over coastal New Jersey and southern New England.
• A slightly inland track could expand heavier totals into Philadelphia, northern New Jersey, and the New York City metro area.

Timing: Sunday Into Monday

The likely impact window remains Sunday into Monday, with the potential for travel disruptions during that period.

Heavy wet snow is possible in parts of the region depending on temperature profiles, which could increase impacts on trees and power lines if higher totals materialize.

What’s Next?

A detailed briefing for the Washington, D.C. area is expected midday into midafternoon, which should provide greater clarity for the southern edge of the snow zone.

For now, the strongest and most consistent signal for impactful snowfall stretches from:

• Eastern Maryland and Delaware
• Through New Jersey and New York City
• Into Connecticut, Rhode Island, Massachusetts, and coastal Maine

Residents from Richmond to Boston should monitor updates closely, as forecast adjustments over the next 24 hours will determine who sees advisory-level snowfall — and who ends up digging out from 6 inches or more.

Stay with Waldronnews.com for continuing updates as the Sunday–Monday snow forecast comes into sharper focus.