Alert archive / California / Beach Hazards Statements in 2012

Beach Hazards Statement 12, NWS San Francisco Bay Area, CA

October 2, 2012Santa Cruz County, California

NWS San Francisco Bay Area, CA issued this beach hazards statement at Oct 2, 2012, 11:19 AM PDT for Santa Cruz County, California. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Oct 2, 2012, 11:19 AM PDT (18:19 UTC)
Expired
Oct 2, 2012, 7:00 PM PDT
In force
8 hr
Issued by
NWS San Francisco Bay Area, CA

County Santa Cruz County, CA

The radar

The San Francisco radar (KMUX), 18 km from the middle of the area, began a volume at 18:21 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

Vandenberg AFB, CA (KVBG), launched 12:00Z, 6.3 hours before the alert went out and 289 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, Vandenberg AFB, CA at 12:00Z on 2012-10-02Temperature 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, Vandenberg AFB, CA at 12:00Z on 2012-10-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 square meters per square second.1939Sfc1 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
3558 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
46 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.

943 
WHUS46 KMTR 021819
CFWMTR

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1119 AM PDT TUE OCT 2 2012

...A BEACH HAZARD STATEMENT IS IN EFFECT FOR SELECT SANTA CRUZ
COUNTY BEACHES THROUGH EARLY TUESDAY EVENING...

.A LONG PERIOD SOUTHERLY SWELL WILL CONTINUE TROUGH EARLY TUESDAY
EVENING. THIS SWELL WILL BE CAPABLE OF PRODUCING STRONG RIP
CURRENTS. 

CAZ529-030200-
/O.NEW.KMTR.BH.S.0012.121002T1819Z-121003T0200Z/
NORTHERN MONTEREY BAY-
1119 AM PDT TUE OCT 2 2012

...BEACH HAZARDS STATEMENT IN EFFECT UNTIL 7 PM PDT THIS
EVENING FOR SELECT BEACHES IN SANTA CRUZ COUNTY...

THE NATIONAL WEATHER SERVICE AN FRANCISCO BAY AREA HAS ISSUED A
BEACH HAZARDS STATEMENT FOR NATURAL BRIDGES STATE BEACH...SANTA
CRUZ BOARDWALK BEACH AND TWIN LAKES STATE BEACH...WHICH IS IN
EFFECT UNTIL 7 PM PDT THIS EVENING.

* LOCATION...NATURAL BRIDGES STATE BEACH...SANTA CRUZ BOARDWALK
  BEACH AND TWIN LAKES STATE BEACH.

* TIMING...THROUGH EARLY TUESDAY EVENING

* IMPACTS...STRONGER THAN NORMAL RIP CURRENTS.

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; radar from the NEXRAD Level II archive.