Tuesday, July 8, 2008

July 8, 2008 Severe Thunderstorm Pictures

Today, a rather strong squall line moved through Youngstown. At first I thought this storm was going to fizzle out and disappear before it even got here, so I wasn't paying much attention to it. I went out to put my car away and saw the storm had actually started looking decent, so I checked the radar and went out to get some pictures. The following photos show the gust front and shelf cloud passing over Youngstown, at approximately 6 PM EDT.


The shelf cloud approaching.



The shelf cloud passing overhead.



Roiling clouds seen after the passing of the shelf cloud.



More of the same clouds.

After these images were taken, I checked the radar again, and to my surprise, there was a tornado vortex signature (TVS) Southwest of Youngstown! This can be seen in the radar capture below. A TVS does not indicate the presence of a tornado; it merely shows that there is strong rotation in the storm. I tried to get a better view to my South, but ended up getting caught in the rain, so I didn't get any more pictures. At this point, the NWS warnings were playing on the radio, and the rain was getting to be quite torrential. I decided I was going to get out of there so that my car did not get dented by any hail, since the storm was indicated to be producing penny-sized hail. The TVS did not verify and there were no reports of funnel clouds in the Youngstown area.




Pittsburgh radar base reflectivity, 0.5* elevation. The pink triangle is the TVS.



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