Northern PA, Southwest NY Thunderstorms Pack 70 MPH Wind Punch This Afternoon — SevereWX

Thunderstorms are firing up across northern Pennsylvania into southwestern New York, primed for damaging wind gusts up to 70 mph this afternoon.

The SPC's Mesoscale Discussion 1466 highlights storms already bubbling in far northwestern PA amid deepening cumulus fields and surface temps soaring into the low 90s F—well above the convective temperature. Expect coverage to ramp up soon, especially northward into SW NY.

Environmentally, steep low- and mid-level lapse rates, modest precipitable water, and high LCLs favor potent downdrafts despite weak 10-15 kt deep-layer shear. This means mostly disorganized cells or loose clusters, but with serious wind potential. HREF and HRRR/RRFS ensembles point to multiple rounds off the Great Lakes, possibly forming bowing outflow segments.

Uncertainty in organization and coverage holds watch issuance at 60% odds for now, but conditions are being closely watched. Peak gusts: 55-70 mph.

This comes amid a busy severe weather pattern, but Northeast residents should prioritize wind risks during holiday travel.

Stay prepared: Monitor local NWS updates, secure outdoor items, avoid flooded roads, and have a severe weather plan ready. Check radar frequently this afternoon.