The Weather Page

September 09, 2007|By FRANK ROYLANCE | FRANK ROYLANCE,Sun Reporter -- Weather Blogger

A Princeton study of Baltimore thunderstorms finds that the density of cloud-to-ground lightning strikes here peaks at nearly 10 strikes per square kilometer in late June and early July, between 5 and 6 p.m. The highest densities occur south and east of Baltimore. Urban "heat islands" and bay breezes stoke our electrical storms. Dense lightning is associated with flash floods, and Moores Run in Northeast Baltimore has one of the highest frequencies of flash flooding in the U.S. Who knew?

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