Alert archive / California / Beach Hazards Statements in 2014

Beach Hazards Statement 5, NWS San Francisco Bay Area, CA

September 7, 2014Monterey County, Santa Cruz County, California

NWS San Francisco Bay Area, CA issued this beach hazards statement at Sep 7, 2014, 6:41 AM PDT for Monterey County, Santa Cruz County, California. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Sep 7, 2014, 6:41 AM PDT (13:41 UTC)
Expired
Sep 7, 2014, 6:00 PM PDT
In force
11 hr
Issued by
NWS San Francisco Bay Area, CA

Counties Monterey County, CA, Santa Cruz County, CA

The radar

The San Francisco radar (KMUX), 62 km from the middle of the area, began a volume at 13:43 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

Oakland, CA (KOAK), launched 12:00Z, 1.7 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 12:00Z on 2014-09-07Temperature 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 12:00Z on 2014-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
1565 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
85 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.

508 
WHUS46 KMTR 071341
CFWMTR

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
641 AM PDT SUN SEP 7 2014

A LONG PERIOD SOUTHERLY SWELL WILL AFFECT THE WATERS TODAY. SWELLS
BETWEEN 4 TO 5 FEET AT A PERIOD OF 17 SECONDS WILL BE THE DOMINANT
SWELL ACROSS THE WATERS TODAY. THESE LONG PERIOD SWELLS WILL CREATE
AN ENHANCED RISK FOR RIP CURRENTS AND LARGE SHORE BREAK.

CAZ529-530-080100-
/O.NEW.KMTR.BH.S.0005.140907T1341Z-140908T0100Z/
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
641 AM PDT SUN SEP 7 2014

...BEACH HAZARDS STATEMENT IN EFFECT UNTIL 6 PM PDT THIS EVENING...

* LOCATION...ALONG THE NORTH CENTRAL COASTLINE PARTICULARLY
  AFFECTING CARMEL CITY BEACH...TWIN LAKES STATE BEACH AND SANTA
  CRUZ BOARDWALK BEACH.

* TIMING...TODAY UNTIL 6 PM PDT.

* IMPACTS...INCREASED RISK FOR RIP CURRENTS AS WELL AS LARGE SHORE
  BREAK ESPECIALLY AT TWIN LAKES STATE BEACH AND SANTA CRUZ
  BOARDWALK BEACH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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, 2014Every beach hazards statement in 2014

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.