9-18-12 Severe Storms Chase
By Stephen Barabas on September 19, 2012, 10:50am
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VIDEO INCLUDES HEAVY RAIN, SOME FLOODING, TRACTOR TRAILER ACCIDENT, STRONG WINDS ON A MOUNTAIN, AND TREES DOWN ON TELEPHONE/POWER LINES.
September 18th was yet another event which involved strong dynamics such as insane low level jet winds 60 knots+, and vertical forcing from a strong cold front associated with a deepening low pressure in Quebec. Though the instability factor (CAPE) wasn't as 'good' as it was on Saturday September 8th which produced several tornadoes south of NYC and plenty of tornado warnings across the North East, the veering, differential winds (wind direction and speed) from the surface and up through the troposphere were still of major concern. These prompted a large swath of tornado watches from Northern New England, down to the southern mid-Atlantic states.
No tornadoes were reported unlike Saturday the 8th, but also unlike Saturday the 8th the squall line held together through the state of Connecticut, producing wind damage non-associated with earlier high winds through the day. So, even though there were a lack of tornado warnings let alone tornadoes, the wind damage factor was much higher than it was a week and a half ago with the previous potent system.
It looks like the potential exists for another dynamic system to impact the area this weekend.
Quincy Vagell and myself logged over 400 miles while chasing from Connecticut, through New York and into Pennsylvania. This was one of the few systems that was chaseable due to the general south-southwest to north-northeast storm motion and slow eastward track of the entire line itself.