daveslaine Posted April 2, 2014 Share Posted April 2, 2014 The following inquiry I have is been very puzzling to me, but meterology is my hobby only, and if you dont know the Los Angeles area you may not be able to answer my question. The question is, why is it that region 1 in the below image usually is always around 10F colder than region 2 in the map? For example, on December 7 2013, region 1 was around 15-20F in the morning, an incredibly cold morning for LA, even though it is closely proximated to the warmer Ocean, and the elevation in that region is between 700-1000 feet. I live in Calabasas, just a bit north of the #1 on the map. Yesterday at around 1am I drove just 3 minutes down towards the beach, and the temperature was 36F, even though downtown LA was ~53F and #2 on the map was around 49. Region 3 is much farther away from the ocean, and the elevations there are past 5500 feet and yet region 1, so close to the beach(where it is usually 50F), and with low elevation, is as cold if not colder than Mt Wilson in region 3. My question, can someone explain how and why this little west-east mountain range is so much more cooler than the mountain range in region 3? 15F just minutes away from the beach where it is 50F is just insane. Link to comment Share on other sites More sharing options...
wxmeddler Posted April 3, 2014 Share Posted April 3, 2014 What's the elevation at #1 and #2? Link to comment Share on other sites More sharing options...
PSUBlizzicane2007 Posted April 3, 2014 Share Posted April 3, 2014 Based solely on where you placed the numbers, #1 is closer to the coast, at a higher elevation, AND is more forested than region 2 which is clearly at a lower elevation, shadowed from the coast, and is an urban sprawl area. With the Pacific Ocean, the colder California current tends to make it cooler at the coast most of the time. Unfortunately, you cannot take one date out of the winter and compare it as that may have been a particuarly warm day weather wise. Link to comment Share on other sites More sharing options...
Ed Lizard Posted April 3, 2014 Share Posted April 3, 2014 May be unrelated, new AUS at old Bergstrom AFB, in the valley of the Colorado River, has been breaking a lot of low temp records set at the old AUS, Mueller Airport. On calm mornings, cold air tends to drain towards low spots. Link to comment Share on other sites More sharing options...
greg ralls Posted April 4, 2014 Share Posted April 4, 2014 Burbank (and the San Fernando Valley in general) always seems to be one of the warmest parts of the Los Angeles area from what I've noticed over the years. Link to comment Share on other sites More sharing options...
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