Wednesday, February 11, 2009

Disappearing severity


The first radar image above shows the squall line at 2131 local time having cleared the Blue Ridge and maintaining its strength (as evidenced by the bright red reflectivity signature). The second image shows the line at 2157 as it neared the I-95 corridor, weakening and diffusing. Thus, even tho' a severe TS warning was issued for our immediate area we had no lightning, no hail, and likely no severe level winds. But it was cool to stand outside as the line approached and listen to the wind roar. It didn't cure my rampant SDS, but it helped as we face the imminent return of winter.

3 comments:

Robert J. said...

I live in the Central part of Culpeper, and I was expecting A LOT more out of that line then what we got. Id probably say 15-20mph winds and a bust of rain and it was gone. Not one flash of lighning even.

Chris said...

Yeah, the fact that there was no lightning (insufficient cloud depth) does lead to an interesting question for the National Weather Service: how can you issue severe thunderstorm warnings when there aren't any thunderstorms present (i.e. no lightning)?

Robert J. said...

IMO they jumped the gun to fast. I would say we had 20mph winds tops! So they were WAY below severe status but the radar was impressive looking though. The storms almost seemed to be those pulse type storms where they'll pulse up real fast then collapse just as fast but I guess they were not because that normally only happens with single cell storms correct?