Alert archive / California / Beach Hazards Statements in 2016
Beach Hazards Statement 9, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this beach hazards statement at Apr 23, 2016, 3:05 AM PDT for 6 counties in California. It took effect at Apr 23, 2016, 5:00 AM PDT. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Apr 23, 2016, 3:05 AM PDT (10:05 UTC)
- In effect from
- Apr 23, 2016, 5:00 AM PDT
- Expired
- Apr 23, 2016, 8:00 PM PDT
- In force
- 15 hr
- Issued by
- NWS San Francisco Bay Area, CA
Counties City and County of San Francisco, CA, Marin County, CA, Monterey County, CA, San Mateo County, CA, Santa Cruz County, CA, Sonoma County, CA
The radar
The San Francisco radar (KMUX), 53 km from the middle of the area, began a volume at 10:06 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, 10.1 hours before the alert went out and 26 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.
- Mixed-layer CAPE
- 15 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1294 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted.
559 WHUS46 KMTR 231005 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 305 AM PDT SAT APR 23 2016 A MODERATE SIZED ENERGETIC WESTERLY SWELL WILL CONTINUE TO PASS THROUGH THE COASTAL WATERS TODAY. WITH RELATIVELY LIGHT WINDS PRESENT EARLY IN THE DAY THIS SWELL WILL RESULT IN GOOD SURF TODAY WHICH WILL PROMOTE THE GENERATION OF STRONG RIP CURRENTS AND LARGE SHORE BREAK AT AREA BEACHES. IF YOU PLAN ON SWIMMING IN THE OCEAN TODAY PLEASE DO SO NEAR A LIFEGUARD. CAZ006-505-509-529-530-240300- /O.NEW.KMTR.BH.S.0009.160423T1200Z-160424T0300Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 305 AM PDT SAT APR 23 2016 ...BEACH HAZARDS STATEMENT IN EFFECT THROUGH THIS EVENING... THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS ISSUED A BEACH HAZARDS STATEMENT FOR STRONG RIP CURRENTS AND LARGE SHORE BREAK...WHICH IS IN EFFECT THROUGH THIS EVENING. * HAZARDS...STRONG RIP CURRENTS AND LARGE SHORE BREAK. * TIMING...THROUGH THIS EVENING. * LOCATION...COASTLINE FROM SONOMA COUNTY SOUTH THROUGH MONTEREY COUNTY. IN PARTICULAR WEST FACING BEACHES...INCLUDING BUT NOT LIMITED TO...OCEAN BEACH...MONTARA STATE BEACH...HALFMOON BAY STATE BEACH...MANRESA STATE BEACH AND MARINA STATE BEACH. * POTENTIAL IMPACTS...STRONG RIP CURRENTS CAN PULL EVEN THE STRONGEST SWIMMERS AWAY FROM SHORE. LARGE SHORE BREAK CAN RESULT IN SERIOUS NECK AND BACK INJURIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARD STATEMENT MEANS THE POTENTIALLY DANGEROUS CONDITIONS MAY EXIST ON SPECIFIC BEACHES. THESE HAZARDS MAY INCLUDE LARGE SHORE BREAK...STRONG RIP CURRENTS...STRONG LONG SHORE CURRENTS AND POSSIBLY SNEAKER WAVES. ALL OF WHICH COULD BE LIFE THREATENING. BE SURE TO ALWAYS KEEP YOUR EYES ON THE OCEAN. && $$
The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 9:30 PM PDT | Small Craft Advisory for Rough Bar | MTR | 21 hr | |
| Apr 23, 2:56 AM PDT | Small Craft Advisory | MTR | 42 hr | |
| Apr 23, 2:56 AM PDT | Small Craft Advisory | MTR | 4 days | |
| Apr 23, 2:18 PM PDT | Gale Warning | MTR | 55 hr |
Nearby
Beach Hazards Statements in California, 2016Every beach hazards statement in 2016
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.