Monday, 29 November 2010 05:06

Dry weather system may mean less rain, cooler temps

slide5-dry_weather_system_may_mean_less_rain_cooler_temps.pngAmador County – Cold weather over the Thanksgiving weekend broke records across California. The National Weather Service reports that many temperatures broke or tied cold-temperature records that have been in place for a century.

Amador County had an average low of 32.

Sacramento saw a record low of 30 degrees over Thanksgiving.

In Stockton, there was a record low temperature of 27 degrees during the holiday. ¶ With a low of 42 degrees on Thursday, San Francisco tied a record that was established in 1892.

Temperatures in Los Angeles dropped to 42 degrees, tying a record first established in 1946.

While the temperatures were low, the rain was relatively sparse in many areas. Climatologists say this is due to a strong La Nina, which signifies dry conditions and cooler temperatures, as opposed to the El Nino phenomenon that brought heavy, much-needed rain and snow across the state last year. Both climate patterns arise from changes in surface temperatures in the Pacific Ocean.

The National Weather Service says this is the first time in three decades that an El Nino and La Nina system have occurred back to back. The last El Niño was in 1972-73 and La Niña in 1973-74.

Story by Alex Lane This email address is being protected from spambots. You need JavaScript enabled to view it.