Radar Maps From Greensburg, Pennsylvania Tornado
UPDATE Friday 3/25/2011: Here is a video that we recorded showing the damage and residents' reactions, along with the video of the tornado itself.
UPDATE Thursday 3/24/2011: The NWS in Pittsburgh has a preliminary report online, with a promise of a full update later this afternoon. The report contains this photo, courtesy Bill Steiner:
I talked earlier about the severe storms moving in from Ohio and the 40-degree temperature gradient between west-central and central Pennsylvania. Now, the National Weather Service has confirmed a tornado touchdown with damage at 4:15 PM in Greensburg, Pennsylvania according to WPXI, who has photos, and WTAE has videos of the twister. Stay tuned to AccuWeather.com for updated information this evening. Here's a radar image as the storm hit (note the "hook echo"):
On the velocity images, rotation could be detected before and after the tornado struck. You can download a high-res reflectivity and velocity movie in Quicktime format.
The storms also brought large hail (to two inches in diameter) and over 8,000 lightning strikes were measured in two hours in eastern Ohio and western Pennsylvania:
With even more elsewhere in the East:
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