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KTLA weather: Strong winds on the way

May 12, 2009 |  8:28 am


A combination of a trough of low pressure in the Pacific Northwest and a building ridge of high pressure over the Pacific Ocean will cause dangerous winds to develop over portions of the Southland later today. The National Weather Service has issued a high wind warning for this afternoon through Wednesday morning for the mountains of Los Angeles and Ventura counties and for the Antelope Valley. Winds could top 60 mph in these areas.  Additionally, a fire weather watch is in effect through Thursday for Santa Barbara County.

This morning, the marine layer pushed all the way into the Inland Empire. Fog and even some patchy drizzle accompanies the cloud deck. Most areas will be clear by noon, although clouds will linger at the beaches. Seasonal highs are forecast with temperatures warming to the mid-70s and 80s. Look for winds to become more widespread this evening.

Wednesday and Thursday the marine layer will decrease each day as northerly winds take hold and high pressure builds. Morning clouds and fog should clear out quickly. Otherwise it is going to be sunny and warmer. Gusty winds will continue through Thursday before easing a bit Friday. Look for temperatures to top out in the upper 80s for the valleys and in the lower 70s at the coast.

We can expect a major warm-up this weekend as a strong ridge of high pressure builds over the West.

More details and the seven-day outlook at KTLA's weather blog.

-- Warren Hohmann