Alert archive / California / Beach Hazards Statements in 2012

Beach Hazards Statement 14, NWS San Francisco Bay Area, CA

October 12, 2012Monterey County, California

NWS San Francisco Bay Area, CA issued this beach hazards statement at Oct 12, 2012, 6:05 PM PDT for Monterey County, California. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Oct 12, 2012, 6:05 PM PDT (01:05 UTC)
Expired
Oct 13, 2012, 8:33 AM PDT
In force
14 hr
Issued by
NWS San Francisco Bay Area, CA

County Monterey County, CA

The radar

The San Francisco radar (KMUX), 115 km from the middle of the area, began a volume at 01:06 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 00:00Z, 1.1 hours before the alert went out and 184 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 2012-10-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLEL10008507005003002001001 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 2012-10-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 square meters per square second.193958Sfc1 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
2 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
982 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
14 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.

548 
WHUS46 KMTR 130105
CFWMTR

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
605 PM 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.

CAZ530-140100-
/O.NEW.KMTR.BH.S.0014.121013T0105Z-121014T0100Z/
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
605 PM PDT FRI OCT 12 2012

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

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

* TIMING...THROUGH SATURDAY 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
1 follow-up statement
986 
WHUS46 KMTR 131533
CFWMTR

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
833 AM PDT SAT OCT 13 2012

CAZ530-131645-
/O.CAN.KMTR.BH.S.0014.000000T0000Z-121014T0100Z/
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
833 AM PDT SAT OCT 13 2012

...BEACH HAZARDS STATEMENT IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS
CANCELLED THE BEACH HAZARDS STATEMENT. 

SEA HEIGHTS AND SWELL PERIODS ARE NO LONGER EXPECTED TO PRODUCE
WIDESPREAD HAZARDOUS BEACH CONDITIONS. THE LATEST OBSERVATIONS AT
BUOY 42 SHOW HEIGHTS OF 5 FEET WITH 12 SECOND PERIODS WHICH IN
GENERAL IS NOT SUFFICIENT TO SUPPORT STRONG RIPS AND LARGE SURF
FOR THE BEACHES OF SOUTHERN MONTEREY BAY. NONETHELESS BEACH GOERS
SHOULD BE VIGILANT WHEN VISITING AREA BEACHES THIS WEEKEND.

$$


HTTP://WWW.WEATHER.GOV/SANFRANCISCO

The office that day

Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 13, 2:26 PM PDTSmall Craft AdvisoryMTR5 days

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.