Overview
- Storm Prediction Center outlooks place large areas from the Ohio Valley to the Mid-Atlantic in Slight to Enhanced risk, with storms arriving Sunday night in the Lower Ohio Valley and into Monday from the Southeast to New England.
- Damaging straight-line winds are the main hazard, with gusts broadly 40–60 mph and up to 65–75 mph in higher terrain; wind advisories are posted in Massachusetts today and additional advisories are likely Monday around the Great Lakes.
- The tornado threat is low but not zero, with brief spin-ups possible within a fast-moving line that also brings downpours, frequent lightning, and locally 1–2+ inches of rain in New England with minor river rises possible.
- A pronounced warm-to-cold swing is expected, with 70s–80s ahead of the front Sunday then a rapid plunge into the 30s and 20s behind it, including rain-to-snow transitions and lake-enhanced snow potential into Tuesday.
- Colorado flips from a Red Flag Warning Saturday to a Winter Weather Advisory Saturday night into Sunday, as mountain snow develops with 65–75 mph gusts, while the Southeast and Florida face Monday storms with gusty winds and isolated severe cells.