Update on Friday Severe Thunderstorm Risk

The Storm Prediction Center has placed the Mid-Atlantic under a Marginal Risk for Severe Thunderstorms on Friday.

Two rounds of precipitation will impact the DC Area, the first associated with the passage of a warm front tomorrow morning and the second associated with a negatively tilted upper-level trough and surface cold front.

Round Number One – Widespread Rain with embedded rumbles of thunder; image below showing “future-cast” radar simulation 4AM to 11AM:

Round Number Two – Watching for scattered strong to severe thunderstorms; image below showing “future-cast” radar simulation between Noon and 4PM:

– The primary threat with possible thunderstorms would be damaging wind gusts and hail

Total Potential Rainfall:

  • Three-quarters of an inch to 1.5″ in DC
  • Locally 4″ or more along the eastern-facing slopes of the Blue Ridge mountains

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