All day long yesterday and today I've been hearing what sounds like thunder in the sky. As it turns out there is indeed thunder in the skies but it's warbirds that thundered through the skies above the Santa Maria Valley on Friday, landing at the Santa Maria Public Airport yesterday and the actual show today. The show is aptly called "Thunder Over the Valley" and is put on by the Santa Maria Museum of Flight. There is an admission charge which covers a meal. They also have a car and motorcycle show plus a military and veterans appreciation bareque and live entertainment.
Also today was the testing of the Early Warning Siren System for Diablo Canyon Power Plant, which is a nuclear power plant. The DCPP is about 10 miles away in Avila. http://www.pge.com/myhome/edusafety/systemworks/diablocanyon/. They have had notices in the paper all week about the siren testing and yet when they sounded off at noon today I still had to remind myself what it was. This was a full scale test of all 131 sirens and each test lasted 3 to 5 minutes. There was a second test at 12:30. So between the air show and the sirens it's been pretty noisy.
The Early Warning System sirens were installed as one of the nuclear power plant emergency preparedness requirements for DCPP. The siren system, which has a battery backup system, can be used for other major emergencies where there is a need to alert large numbers of people to tune to a local radio or television station to get information and instructions related to the emergency. The Early Warning System sirens cover an area extending from Cayucos to Willow Road on the northern Nipomo Mesa which is pretty much the entire central coast San Luis county . The Early Warning System sirens are intended to alert the public to go indoors and monitor a local radio or television station for emergency information.
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