INTERAGENCY
0900
TUESDAY, JUNE 18, 2013
SOUTHERN
CALIFORNIA GEOGRAPHICAL
RIVERSIDE, CALIFORNIA
***Gusty
winds north winds for Santa Barbara County eastward into northern Los Angeles
County, especially Wednesday afternoon through Thursday morning***
An upper level trough moving through the
Pacific Northwest will generate gusty winds along the Sierras north of Sequoia
National Park throughout the day. Some dry, downsloping winds will result in the lee of the mountains
into Mono County where RH in the teens with gusts to 40 mph will be possible
through this evening. Elsewhere, a north to south pressure gradient
will result in some locally gusty winds during the afternoon into the overnight
hours. Northwest winds of 15-25 mph with
gusts to 35 mph will be possible along the central coast each afternoon through
Thursday. These winds will generate some
“sundowner” winds of 15-25 mph with gusts to 40 mph across Santa Barbara County
this afternoon into the overnight hours. Similar winds can also be expected
across the I-5 Corridor into the Santa Clarita Valley and nearby areas of the
Antelope Valley. These areas will see
minimum RH fall into the teens with poor RH recovery Tuesday and Wednesday
nights. At this
time, the windiest period in Southern California this week appears to be the
Wednesday night into Thursday morning when some wind gusts to 45 mph will be
possible along the I-5 Corridor and the Santa Ynez Range in Santa Barbara
County along with RH in the teens, or lower.
A High Risk Day has been declared for the Wednesday evening through
Thursday morning timeframe due to strong winds and low RH, especially across
Santa Barbara County eastward into northern Los Angeles County. The
winds should decrease Thursday afternoon. High temperatures will remain close to
seasonal normal through Thursday with highs in the 70s along the coast to the
mid to upper 80s further inland. This weekend, a ridge over the Rockies may
edge further west, which would bring warmer temperatures, and less wind, to the
region. END/RK