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San Francisco’s Driest January On Record Likely, No Rain So Far In 2015
San Francisco’s Driest January On Record Likely, No Rain So Far In 2015
January 26, 2015 11:27 AM
SAN FRANCISCO (CBS SF) – Across much of Northern and Central California there has been little if any rain this month, and monthly totals will wind up at or near long-term records.
As of Monday, San Francisco had no rainfall for the entire month. If this trend continues, it would beat the record low of 0.06 inches set last January. In January 2013, 0.49 inches of rain fell on San Francisco.
The past three Januaries in San Francisco are among the five driest on record. This has brought the average for the past ten years down to 3.03 inches, dramatically lower than the 30-year normal of 4.55 inches.
...
http://sanfrancisco.cbslocal.com/2015/01/26/bay-area-northern-california-on-verge-of-record-dry-january-after-wet-december-san-francisco-san-jose-sacramento-rainfall-records/
January 26, 2015 11:27 AM
SAN FRANCISCO (CBS SF) – Across much of Northern and Central California there has been little if any rain this month, and monthly totals will wind up at or near long-term records.
As of Monday, San Francisco had no rainfall for the entire month. If this trend continues, it would beat the record low of 0.06 inches set last January. In January 2013, 0.49 inches of rain fell on San Francisco.
The past three Januaries in San Francisco are among the five driest on record. This has brought the average for the past ten years down to 3.03 inches, dramatically lower than the 30-year normal of 4.55 inches.
...
http://sanfrancisco.cbslocal.com/2015/01/26/bay-area-northern-california-on-verge-of-record-dry-january-after-wet-december-san-francisco-san-jose-sacramento-rainfall-records/
A highly-amplified atmospheric pattern over North America–once again
What has been the cause of all this California weather volatility and the recent trend towards warmer and drier conditions (despite the fact that January is historically California’s wettest month?). A high-amplitude atmospheric flow pattern has once again developed over the Eastern Pacific and North America, deflecting the Pacific storm track north of its typical cool-season position along the West Coast and allowing repeated intrusions of extremely cold Arctic air to invade the American Midwest and Eastern Seaboard.
http://www.weatherwest.com/
