Air pressure is all-important measurement

July 30, 2011 08:58 PM

UPDATED July 30, 2011 09:00 PM

About Weather Watch

John Lindsey

@PGE_John

John Lindsey writes Weather Watch, a weekly column for The Tribune. He is PG&E's Diablo Canyon meteorologist and media relations representative. Email him at pgeweather@pge.com .