CA WFO LOS ANGELES Warnings, Watches, and Advisories

WFO LOS ANGELES Warnings, Watches and Advisories for Sunday, September 11, 2022

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AREAL FLOOD ADVISORY

Flood Advisory

National Weather Service Los Angeles/Oxnard CA

523 PM PDT Sun Sep 11 2022

...FLOOD ADVISORY IN EFFECT UNTIL 715 PM PDT THIS EVENING...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...Eastern Los Angeles County in the mountains to Antelope

Valley.

* WHEN...Until 715 PM PDT.

* IMPACTS...Heavy rainfall could trigger shallow debris flows in and

near the Bobcat burn scar. Ponding of water, including Highway

138, in urban or other areas is occurring or is imminent.

* ADDITIONAL DETAILS...

- At 516 PM PDT, A line of thunderstorms was producing rainfall

rates of around one inch per hour. Urban and roadway flooding

as well as minor debris flows are ongoing or expected to

begin shortly in the advisory area.

- Some locations that will experience flooding include...

Acton, Palmdale, Pearblossom, Llano, Littlerock, Valyermo, as

well as portions of Highway 138 and the Angeles Crest.

- http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move away from recently burned areas. The rain will likely trigger

shallow mud and debris flows, minor rock falls, and flooding capable

of localized damage, especially in steep terrain in and near burn

scars.

Remain alert for flooding even in locations not receiving rain.

Arroyos, streams, and rivers can become raging killer currents in a

matter of minutes, even from distant rainfall.

The National Weather Service in San Diego has issued a

*...