Alert archive / California / Beach Hazards Statements in 2012

Beach Hazards Statement 15, NWS San Francisco Bay Area, CA

October 15, 2012Monterey County, California

NWS San Francisco Bay Area, CA issued this beach hazards statement at Oct 15, 2012, 9:40 PM PDT for Monterey County, California. It was in force for 32 hr.

The area

The counties it named.

The facts

Issued
Oct 15, 2012, 9:40 PM PDT (04:40 UTC)
Expired
Oct 17, 2012, 5:58 AM PDT
In force
32 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 04:40 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, 4.7 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 2012-10-16Temperature 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 2012-10-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 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
1895 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
-32 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.

636 
WHUS46 KMTR 160440
CFWMTR

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
940 PM PDT MON OCT 15 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 MARINA...MONTEREY AND ASILOMAR STATE
BEACHES.

CAZ530-170400-
/O.NEW.KMTR.BH.S.0015.121016T0440Z-121017T0400Z/
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
940 PM PDT MON OCT 15 2012

...BEACH HAZARDS STATEMENT IN EFFECT THROUGH TUESDAY EVENING...

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

* LOCATION...MARINA...MONTEREY AND ASILOMAR STATE BEACHES.

* TIMING...THROUGH TUESDAY EVENING.

* IMPACTS...STRONG RIP CURRENTS AND POSSIBLY LARGE SURF AT
  INDICATED STATE BEACHES.

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
2 follow-up statements
047 
WHUS46 KMTR 170325
CFWMTR

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
825 PM PDT TUE OCT 16 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 MARINA...MONTEREY AND
ASILOMAR STATE BEACHES.

CAZ530-180330-
/O.EXT.KMTR.BH.S.0015.000000T0000Z-121018T0400Z/
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
825 PM PDT TUE OCT 16 2012

...BEACH HAZARDS STATEMENT NOW IN EFFECT THROUGH WEDNESDAY
EVENING...

* LOCATION...MARINA...MONTEREY AND ASILOMAR STATE BEACHES.

* TIMING...THROUGH WEDNESDAY EVENING.

* IMPACTS...STRONG RIP CURRENTS AND POSSIBLY LARGE SURF AT 
  INDICATED STATE BEACHES. 

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
582 
WHUS46 KMTR 171258
CFWMTR

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
558 AM PDT WED OCT 17 2012

CAZ530-171400-
/O.CAN.KMTR.BH.S.0015.000000T0000Z-121018T0400Z/
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
558 AM PDT WED OCT 17 2012

...BEACH HAZARDS STATEMENT IS CANCELLED...

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

SWELL PERIODS HAVE DECREASED THIS MORNING AND WAVES ARE NO LONGER
EXPECTED TO PRODUCE HAZARDOUS BEACH CONDITIONS. BEACHGOERS SHOULD
CONTINUE TO BE VIGILANT WHEN VISITING AREA BEACHES AND WATCH FOR
RIP CURRENTS.

$$


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.