http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=1416One of the most powerful low pressure systems since record keeping began in the 1800s slammed the West Coast yesterday (January 20) with hurricane-force wind gusts, large hail, and torrential rains that have created flash floods and dangerous debris flows. The storm, centered just offshore near the Oregon/California border this morning, (January 21) set an all-time record for the lowest pressure ever recorded along the southern Oregon coast yesterday. Medford, Oregon hit a pressure of 978 mb (28.88") yesterday afternoon, beating their old lowest ever pressure of 28.93" set in 1995. Northern California came close to setting a new record for lowest pressure as well, as Eureka, California hit 980 mb (28.93"), nearly matching the old record of 979 mb (28.91") set on Feb 22, 1891.
Record low barometric pressures were measured from Phoenix to Seattle (my barometer fell to an astonishing 972 mb) and Pugetopolis is having the warmest January evah. Temps are running 4.5 degrees C above normal.