NWS Los Angeles

NWS Los Angeles


Official Twitter account for the National Weather Service Los Angeles. Details: http://t.co/DT7PGbdIaq

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Seeing some surges on the Port San Luis tsunami gauge. Reporting up to a 24 cm residual so far. That's 9.4 inches or about 19 inches from the bottom and top of the residual. More at . #tsunami 

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These are current wind gust speeds across LA and Ventura Counties. The highest one at 9:30 am is in Escondido Canyon near Kanan Dume Rd in the Santa Monica Mountains which is reporting gusts to 78 mph! High wind warnings in effect until 3pm today! #LAwind  #CAwx 

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#Tsunami safety reminder: even smaller tsunamis can be dangerous. Strong currents can idamage boats and infrastructure in harbors. Obviously not safe for swimming, or kayaking! #CAwx  #SoCal 

A -0.59 residual was recently recorded at Santa Barbara Harbor. These plots allow you to see the height of the #Tsunami  wave (the residual) which is the difference between the predicted tide and the observed water level. #SoCal  #CAwx  #TsunamiAdvisoryAdvisory 

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This was not your run of the mill way a #tsunami  is generated. Most often its from plates shifting abruptly on the sea floor. This tsunami was essentially caused by a massive underwater explosion of molten rock and lava that displaced the water above it.

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Rare strong #SantaAnaWind  event tonight for the San Gabriel Valley. Potential for localized damaging wind gusts up to 60 mph in the foothills along the Interstate 210 corridor, with gusts of 40-45 mph for remaining valley areas including Pasadena. #LAwind  #LAWeather  #cawx  #Socal 

If you've just woken up this morning and plan on heading out on the roads please be very very careful out there. Many trees have been uprooted and fallen on the roads and power lines have also been knocked down. Remember, always assume a downed power line is live! #CAwx  #LAwind 

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The 121° high temperature at Woodland Hills official site (Pierce College) was also the highest official temperature ever recorded in L.A. County as well as Ventura, Santa Barbara and San Luis Obispo Counties. Click the URL for more details #cawx  #LAheat 

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This tsunami will bring large and dangerous rip currents to all Southern California beaches today. #Ripcurrents 

**A Tsunami Advisory is in effect for all coasts including the islands. Arrival time will be between 7:30 and 8:00 AM this morning** A tsunami capable of producing strong currents hazardous to swimmers, boats, and coastal structures is expected.

Here are the two sites that broke their all-time high temperature records today. 121° was the highest ever recorded at an official site in L.A. County. Ditto for Paso Robles 117° in San Luis Obispo County. Burbank tied all-time high of 114° from yesterday. #cawx  #LAheat  #Socal 

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CLIMATE RECORD!!!! Not surprisingly, we have broken daily rainfall record at Downtown LA with 2.34" as of 300 PM this afternoon. This record total will increase as light rain will continue through this evening. The old record was 1.85" set in 1936. #cawx  #larain 

Latest #Tsunami  update: - No info about expected wave heights - Initial tsunami wave arriving around 745 AM - No significant concerns about inundation - Strong rip currents and harbor currents main concerns at this time - Stay away from water/beaches

What's a #tsunami  wave when there's a tsunami advisory? Think of them more as surges in the currents, which after arrival can create dangerous rip currents for many hours. Harbors and marinas would also experience these strong surges. See more at .

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