Alert archive / California / Beach Hazards Statements in 2012

Beach Hazards Statement 13, NWS San Francisco Bay Area, CA

October 12, 2012Monterey County, Santa Cruz County, California

NWS San Francisco Bay Area, CA issued this beach hazards statement at Oct 12, 2012, 2:52 AM PDT for Monterey County, Santa Cruz County, California. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Oct 12, 2012, 2:52 AM PDT (09:52 UTC)
Expired
Oct 12, 2012, 5:00 PM PDT
In force
14 hr
Issued by
NWS San Francisco Bay Area, CA

Counties Monterey County, CA, Santa Cruz County, CA

The nearest sounding before it

Oakland, CA (KOAK), launched 00:00Z, 9.9 hours before the alert went out and 131 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-pSkew-T log-p diagram, Oakland, CA at 00:00Z on 2012-10-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Oakland, CA at 00:00Z on 2012-10-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -124 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
641 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
-124 m²/s²
0-3 km storm-relative helicity
158 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

824 
WHUS46 KMTR 120952
CFWMTR

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
252 AM PDT FRI OCT 12 2012

...A BEACH HAZARD STATEMENT IS IN EFFECT FOR SELECT MONTEREY BAY BEACHES...

MODERATE PERIOD WESTERLY SWELL WILL PRODUCE STRONGER THAN NORMAL RIP
CURRENTS AND POSSIBLY LARGE SURF AT MANRESA STATE BEACH...AND
STRONG RIP CURRENTS AT MARINA STATE BEACH.

CAZ529-530-130000-
/O.NEW.KMTR.BH.S.0013.121012T0952Z-121013T0000Z/
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
252 AM PDT FRI OCT 12 2012

...BEACH HAZARDS STATEMENT IN EFFECT THROUGH THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS
ISSUED A BEACH HAZARDS STATEMENT FOR STRONG RIP CURRENTS AND LARGE SURF...
WHICH IS IN EFFECT THROUGH THIS AFTERNOON.

* LOCATION...MANRESA STATE BEACH AND MARINA STATE BEACH

* TIMING...THROUGH FRIDAY AFTERNOON

* IMPACTS...STRONG RIP CURRENTS AT BOTH BEACHES AND POSSIBLY LARGE
  SURF AT MANRESA STATE BEACH

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BEACH HAZARD STATEMENT FOR RIP CURRENTS MEANS THAT CONDITIONS
ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF STRONG RIP CURRENTS.
RIP CURRENTS ARE TYPICALLY MORE FREQUENT AND STRONGER IN THE
VICINITY OF JETTIES...INLETS...AND PIERS. SWIMMERS CAUGHT IN A RIP
CURRENT SHOULD SWIM PARALLEL TO THE COAST TO ESCAPE THE RIP
CURRENT BEFORE TRYING TO SWIM FOR SHORE. SWIMMERS SHOULD ALWAYS
SWIM NEAR A LIFEGUARD.

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW BEACH HAZARDS STATEMENT...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=CHMBHS.

&&

$$


HTTP://WWW.WEATHER.GOV/SANFRANCISCO

Nearby

Beach Hazards Statements in California, 2012Every beach hazards statement in 2012

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.