Weather

TIghten the gradients, Marge

The National Weather Service is warning of a "strong Santa Ana event" starting tonight across Los Angeles and Ventura counties, lasting into Thursday afternoon. I love how they explain the mechanism:

Surface high pressure building into the Great Basin will tighten the surface pressure gradients across southwest California.

After the jump: advice for a "high wind warning" like the one just called by the NWS.

* WINDS: NORTHEAST WINDS WILL INCREASE TO 25 TO 40 MPH WITH POTENTIALLY DAMAGING GUSTS TO 60 MPH. THE WINDS WILL CONTINUE INTO THURSDAY AFTERNOON BEFORE WEAKENING SOME.

* IMPACTS: TRAVEL THROUGH INTERSTATE 5 AND HIGHWAY 14 WILL BE DIFFICULT. OVERNIGHT THE WINDS WILL BE CAPABLE OF PRODUCING DOWNED POWER LINES AND UPROOTED TREES...AS WELL AS LIFTING UNSECURED OBJECTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS THAT WINDS ARE IN EXCESS OF 40 MPH WITH POSSIBLE GUSTS GREATER THAN 60 MPH. BE ALERT FOR FLYING DEBRIS. IF ON THE ROAD...KEEP EYES OPEN FOR FALLEN TREES AND DOWNED POWER LINES. SECURE ALL DOORS AND WINDOWS AND STAY INDOORS IF POSSIBLE.


More by Kevin Roderick:
LA Observed Notes: 60 Minutes, selling the Coliseum and more
Gil Cedillo, Nick Melvoin win LA runoffs*
LA Observed Notes: Baca goes down, LAX shuffle, media moves
LA Observed Notes: Big TV news, media moves, obits and more
LA Observed Notes: Writers on the verge, Fox, the riots and more
Recent Weather stories on LA Observed:
Mass evacuation below Oroville Dam
The Mighty Los Angeles (River) was roaring on Sunday
Time for some weather geeking
Let there be light refraction
Video: It's a bear's life
Mark Thompson returns to Fox 11 weather desk
Ol' Man Atmospheric River is flowing again
Death Valley or Spring's Meadows?


 

LA Observed on Twitter