Alert archive / California / Beach Hazards Statements in 2023

Beach Hazards Statement 18, NWS Los Angeles, CA

November 15, 20234 counties in California

NWS Los Angeles, CA issued this beach hazards statement at Nov 15, 2023, 10:24 AM PST for 4 counties in California. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued: Nov 15, 2023, 10:24 AM PST (18:24 UTC)
Expired: Nov 16, 2023, 2:00 AM PST
In force: 16 hr
Issued by: NWS Los Angeles, CA

Counties Los Angeles County, CA, San Luis Obispo County, CA, Santa Barbara County, CA, Ventura County, CA

The radar

The Los Angeles radar (KVTX), 35 km from the middle of the area, began a volume at 18:23 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

San Diego, CA (KNKX), launched 12:00Z, 6.4 hours before the alert went out and 291 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3198 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 89 m²/s²
0-3 km storm-relative helicity: 132 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this beach hazards statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Los Angeles, CA wrote its last area forecast discussion before this beach hazards statement went out at Nov 15, 9:30 AM PST, 54 minutes earlier.

Area forecast discussion, Nov 15, 9:30 AM PST, 54 minutes before

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The office that day

Everything else NWS Los Angeles, CA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 15, 3:58 AM PST	Gale Warning	LOX		23 hr
Nov 15, 11:05 AM PST	Special Weather Statement	LOX	Los Angeles	55 min

Nearby

Beach Hazards Statements in California, 2023 Every beach hazards statement in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.