The cooling of the air by the Thunderstorms to our south and the outflow winds that blew north brought us a sharp drop in temperatures by about 12 degrees in one half hour! Although we saw no rain we did benefit from it down south.
Below is a graph showing the sharp drop in temperature around [...]

Stitched together some radar images of yesterday’s relatively light Thunderstorm activity over the south side of the valley. Video ends with locations of 3.5 earthquake and several smaller aftershocks. Click link below for clip.
Thunderstorm Cell activity

It was a rare event for early June. Dark skies, thunderstorms, cooler temperatures, and some rain mainly west of the valley. Here’s some information and a map showing the total number of lightning strikes as the results of this unstable air mass…

RAINFALL STORM TOTAL SUMMARY…PRELIMINARY
NATIONAL WEATHER SERVICE SAN DIEGO CA
530 AM PDT [...]

PRELIMINARY LOCAL STORM REPORT…CORRECTED
NATIONAL WEATHER SERVICE SAN DIEGO CA
1001 PM PDT WED JUN 03 2009

..TIME… …EVENT… …CITY LOCATION… …LAT.LON…
..DATE… ….MAG…. ..COUNTY LOCATION..ST.. …SOURCE….
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