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Climate and Environment

Scattered Showers To Cover LA Bringing Snow To Local Mountains

Snow covers the ground next to an onramp to the I-5 south
Caltrans worked to keep the roads clear in the early morning Saturday as snow covered the Grapevine.
(Courtesy Caltrans)
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Don’t put away the umbrellas yet. A cold and wet storm will pass through L.A. County on Monday bringing scattered showers and snow at lower elevations including the Grapevine and parts of the Antelope Valley.

What to expect

Scattered, moderate showers totaling just under an inch of rain. Showers will start to taper off Monday evening and are expected to die down by midnight. Temperatures will remain in the mid 50ss during the day but will drop to the 40s by tonight. You may see some frost Tuesday morning.

Cold Weather Alert

L.A. County Public Health Officer Muntu Davis issued a cold weather alert for the county starting Tuesday until Thursday. Here's a list of areas affected:

  • Pomona (East San Gabriel Valley) — Tuesday, Jan. 31 to Wednesday, Feb. 1
  • Santa Clarita Valley — Tuesday, Jan. 31 to Thursday, Feb. 2
  • Lancaster (Antelope Valley)  — Tuesday, Jan. 31 to Saturday, Feb. 4
  • Mount Wilson (L.A. County Mountains) — Tuesday, Jan. 31 to Thursday, Feb. 2
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"There are places where people can go to stay warm, such as shelters or other public facilities. We also want to remind people not to use stoves, barbeques or ovens to heat their homes due to the risk of carbon monoxide poisoning," said Davis in a statement released by the county's department of Public Health.
Here are some tips to stay safe during the cold.

About that snow level

Snowfall levels are expected to drop as low as 2,500 feet in the Antelope Valley, dusting the Palmdale and Lancaster area and up to 14 inches of snow are likely in the San Gabriel mountains.

Meteorologist David Sweet with the National Weather Service says drivers should be careful over the mountain passes.

“If you're driving over the grapevine, I-5, or if you're going across the 14 freeway out to the Antelope Valley, there is the possibility of a little bit of snow affecting driving conditions, so people should slow down, be prepared for uh, slippery roads.”

The California Highway Patrol is escorting drivers through the Grapevine while they monitor the snow conditions.

Did I hear rain last night? Yes, yes you did

Starting at 4 a.m. Monday, downtown L.A. received more than a half inch of rain. The Sepulveda Canyon at Mulholland reported just under three quarters of an inch and both Culver City and La Cañada Flintridge saw just under a half inch of rain.

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Showers continued into the afternoon.

What questions do you have about the weather we're experiencing?
A massive winter storm is hitting Southern California. We're here to answer your questions.
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Updated January 30, 2023 at 2:01 PM PST
This story was updated to include additional information from L.A. County Department of Public Health
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