INTERAGENCY FIRE WEATHER CENTER PREDICTIVE SERVICES UNIT

 

MONDAY, FEBRUARY 27, 2017

SOUTHERN CALIFORNIA GEOGRAPHICAL AREA COORDINATION CENTER

RIVERSIDE, CALIFORNIA

A Pacific trough dropping down the West Coast will bring scattered showers to most of the region through tonight. An area of high moisture will move into Southern California south and east of Los Angeles County this afternoon and evening bringing a period of rain to this part of the area. Most locations south and east of Los Angeles County will receive between 1 and 3 inches of rainfall. Elsewhere, most locations will receive less than a quarter inch of rainfall through tonight. The snow level will be between 4,000 and 5,000 feet. This trough will also bring south to west winds of 20 to 30 mph with gusts to 50 mph to the wind prone mountain and desert locations through tonight. Temperatures will be 10 to 15 degrees below normal today, with 30s to low 40s across the mountains and upper 40s and 50s in the valleys. Northwest flow on the back side of the trough will continue to bring cool temperatures to the region Tuesday, but temperatures will warm around 5 degrees due to abundant sunshine. Significant warming along with low humidity will occur Wednesday through Friday as a ridge of high pressure builds into California from the Pacific Ocean. Temperatures will be around 10 degrees above normal and humidity will be mainly in the single digits and teens away from the San Joaquin Valley and immediate coast Thursday and Friday. Light offshore flow will take place Wednesday through Friday. A trough will move inland into the Pacific Northwest bringing cooling, higher humidity, and onshore flow to the area this weekend. At this time, no rainfall is expected with this trough.

 

There will be little or no fire activity across the region through the forecast period.

 

For addition fuels and weather information, including the Santa Ana Wildfire Threat Index, please visit:

 

http://gacc.nifc.gov/oscc/predictive/weather/index.htm