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Midweek Fronts End Unseasonable Warmth, Bring Rain, Wind and Early Mountain Snow

Forecasters say the frontal systems will deliver regionally hazardous rain, gusts, early mountain snow, then give way to a western ridge that brings drier milder weather.

Overview

  • A midweek cold front pushed into multiple regions, ending a multiweek warm dry stretch and producing evening showers in western Washington and scattered rain elsewhere.
  • New England is forecast to see steadier rain and pockets of heavy downpours on Friday with localized poor‑drainage flooding and a potentially wet evening commute for southeastern Massachusetts.
  • The National Weather Service issued Coastal Flood Advisories for parts of the Bay Area and forecasters warned of a Coastal Flood Advisory for Southern California tied to higher tides and hazardous surf over the next few days.
  • Colorado’s central mountains are under a Winter Weather Advisory for as much as about 10 inches above 10,000 feet while foothill and Rocky Mountain front zones from Billings southward face increasing winds with gusts that could top 50 mph late this week.
  • Models show high pressure building over the interior West after the systems pass, bringing a drier, milder stretch next week even as the Upper Midwest clears to chilly nights with frost and first‑freeze potential.