Severe Thunderstorms to Our West
By Quincy Vagell on October 19, 2012, 5:14pm Last modified: October 20, 2012, 1:09am
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The SPC is highlighted an area to our west for possible supercell formation.
Supercell thunderstorms are individual thunderstorm "cells" that are formed by mesocyclones and are sometimes referred to as "rotating thunderstorms."
11:45 p.m.
These storms had a history of producing wind damage and numerous Tornado Warnings, mainly across eastern Pennsylvania earlier this evening.
8:30 p.m. A line of strong to severe storms has developed from Maryland into eastern Pennsylvania. Some of these storms look impressive on radar and may feature winds up to 60 mph. One cell just west of Philadelphia was also showing weak signs of rotation.
(previous) Forecast:
Breaks of sunshine have allowed for daytime heating and a marginally unstable air-mass to form across portions of eastern Pennsylvania, southern New York and New Jersey. With strong wind shear aloft, a few storms could fire and produce locally damaging winds. Although the tornado threat is very low, there are some small Significant Tornado Parameter values showing up across eastern PA and NJ.
Watch regional radar to track any possible storms:
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