Alert archive / California / Beach Hazards Statements in 2016
Beach Hazards Statement 15, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this beach hazards statement at Sep 17, 2016, 2:00 PM PDT for 6 counties in California. It took effect at Sep 18, 2016, 5:00 AM PDT. It was in force for 24 hr.
The area
The counties it named.
The facts
- Issued
- Sep 17, 2016, 2:00 PM PDT (21:00 UTC)
- In effect from
- Sep 18, 2016, 5:00 AM PDT
- Expired
- Sep 19, 2016, 5:00 AM PDT
- In force
- 24 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 21:02 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, 9.0 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1873 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- -32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
276 WHUS46 KMTR 172100 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 200 PM PDT SAT SEP 17 2016 ...FIRST SIGNIFICANT SWELL OF THE FALL... .A BROAD GALE FORCE LOW ACROSS THE NORTH PACIFIC THIS LAST WEEK HAS GENERATED A NORTHWEST SWELL THAT WILL IMPACT THE CENTRAL CALIFORNIA COAST THROUGH THE EARLY PART OF THE COMING WEEK. WHILE NORTHWEST WINDS MAY MASK THE SWELL IN SOME AREAS...MANY AREA BEACHES WILL BE IMPACTED BY THE FIRST NW SWELL OF THE FALL. CAZ006-505-509-529-530-180500- /O.NEW.KMTR.BH.S.0015.160918T1200Z-160919T1200Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 200 PM PDT SAT SEP 17 2016 ...BEACH HAZARDS STATEMENT IN EFFECT FROM LATE TONIGHT THROUGH LATE SUNDAY NIGHT... THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS ISSUED A BEACH HAZARDS STATEMENT FOR INCREASED RIP CURRENT ACTIVITY AND POSSIBLE LARGE SHORE BREAK...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH LATE SUNDAY NIGHT. * HAZARDS...STRONG RIP AND LONGSHORE CURRENTS...POSSIBLE LARGE SHORE BREAK...AND MODERATE WAVE RUNUP. * TIMING...THROUGH THE DAY ON SUNDAY AND POSSIBLY INTO MONDAY. * LOCATIONS...ALL EXPOSED WEST AND NORTHWEST FACING BEACHES AND SOME SOUTHWEST FACING BEACHES. * POTENTIAL IMPACTS...STRONG RIP AND LONG SHORE CURRENTS MAY QUICKLY EXHAUST SWIMMERS. LARGE SHORE BREAK CAN RESULT IN INJURY. WAVE RUNUP OF ANY KIND CAN PULL UNSUSPECTING PEOPLE INTO COLD FRIGID AND TURBULENT WATERS. 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 LONGSHORE CURRENTS AND POSSIBLY SNEAKER WAVES. ALL OF WHICH COULD BE LIFE THREATENING. NEVER TURN YOUR BACK ON THE OCEAN. COASTLINE FROM SONOMA COUNTY SOUTH THROUGH MONTEREY COUNTY. IN PARTICULAR WEST TO NORTHWEST FACING BEACHES...INCLUDING BUT NOT LIMITED TO...OCEAN BEACH...MONTARA STATE BEACH AND MARINA STATE BEACH. && $$
3 follow-up statements
024 WHUS46 KMTR 180454 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 954 PM PDT SAT SEP 17 2016 ...FIRST SIGNIFICANT SWELL OF THE FALL... .A BROAD GALE FORCE LOW ACROSS THE NORTH PACIFIC THIS LAST WEEK HAS GENERATED A LONG PERIOD NORTHWEST SWELL THAT WILL IMPACT THE CENTRAL CALIFORNIA COAST THROUGH THE EARLY PART OF THE COMING WEEK. WHILE NORTHWEST WINDS MAY MASK THE SWELL IN SOME AREAS...MANY AREA BEACHES WILL BE IMPACTED BY THE FIRST NW SWELL OF THE FALL. CAZ006-505-509-529-530-182000- /O.CON.KMTR.BH.S.0015.160918T1200Z-160919T1200Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 954 PM PDT SAT SEP 17 2016 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 5 AM PDT SUNDAY THROUGH LATE SUNDAY NIGHT... * HAZARDS...STRONG RIP AND LONGSHORE CURRENTS...POSSIBLE LARGE SHORE BREAK...AND MODERATE WAVE RUNUP. * TIMING...THROUGH THE DAY ON SUNDAY AND POSSIBLY INTO MONDAY. * LOCATIONS...ALL EXPOSED WEST AND NORTHWEST FACING BEACHES AND SOME SOUTHWEST FACING BEACHES. * POTENTIAL IMPACTS...STRONG RIP AND LONG SHORE CURRENTS MAY QUICKLY EXHAUST SWIMMERS. LARGE SHORE BREAK CAN RESULT IN INJURY. WAVE RUNUP OF ANY KIND CAN PULL UNSUSPECTING PEOPLE INTO COLD FRIGID AND TURBULENT WATERS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARD STATEMENT MEANS THE POTENTIALLY DANGEROUS CONDITIONS MAY EXIST ON SPECIFIC BEACHES. THESE HAZARDS MAY INCLUDE LARGE SHORE BREAK...STRONG RIP CURRENTS...STRONG LONGSHORE CURRENTS AND POSSIBLY SNEAKER WAVES. ALL OF WHICH COULD BE LIFE THREATENING. NEVER TURN YOUR BACK ON THE OCEAN. COASTLINE FROM SONOMA COUNTY SOUTH THROUGH MONTEREY COUNTY. IN PARTICULAR WEST TO NORTHWEST FACING BEACHES...INCLUDING BUT NOT LIMITED TO...OCEAN BEACH...MONTARA STATE BEACH AND MARINA STATE BEACH. && $$
568 WHUS46 KMTR 181950 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 1250 PM PDT SUN SEP 18 2016 ...FIRST SIGNIFICANT SWELL OF THE FALL... .A BROAD GALE FORCE LOW ACROSS THE NORTH PACIFIC LAST WEEK GENERATED A LONG PERIOD NORTHWEST SWELL THAT WILL IMPACT THE CENTRAL CALIFORNIA COAST THROUGH THE EARLY PART OF THE COMING WEEK. WHILE NORTHWEST WINDS MAY MASK THE SWELL IN SOME AREAS...MANY AREA BEACHES WILL BE IMPACTED BY THE FIRST NW SWELL OF THE FALL. CAZ006-505-509-529-530-191200- /O.CON.KMTR.BH.S.0015.000000T0000Z-160919T1200Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 1250 PM PDT SUN SEP 18 2016 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE TONIGHT... * HAZARDS...STRONG RIP AND LONGSHORE CURRENTS...POSSIBLE LARGE SHORE BREAK...AND MODERATE WAVE RUNUP. * TIMING...THROUGH THE REST OF SUNDAY AND EARLY MONDAY. * LOCATIONS...ALL EXPOSED WEST AND NORTHWEST FACING BEACHES AND SOME SOUTHWEST FACING BEACHES. * POTENTIAL IMPACTS...STRONG RIP AND LONG SHORE CURRENTS MAY QUICKLY EXHAUST SWIMMERS. LARGE SHORE BREAK CAN RESULT IN INJURY. WAVE RUNUP OF ANY KIND CAN PULL UNSUSPECTING PEOPLE INTO COLD FRIGID AND TURBULENT WATERS. 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 LONGSHORE CURRENTS AND POSSIBLY SNEAKER WAVES. ALL OF WHICH COULD BE LIFE THREATENING. NEVER TURN YOUR BACK ON THE OCEAN. COASTLINE FROM SONOMA COUNTY SOUTH THROUGH MONTEREY COUNTY. IN PARTICULAR WEST TO NORTHWEST FACING BEACHES...INCLUDING BUT NOT LIMITED TO...OCEAN BEACH...MONTARA STATE BEACH AND MARINA STATE BEACH. && $$
959 WHUS46 KMTR 191151 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 451 AM PDT MON SEP 19 2016 CAZ006-505-509-529-530-191300- /O.EXP.KMTR.BH.S.0015.000000T0000Z-160919T1200Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 451 AM PDT MON SEP 19 2016 ...BEACH HAZARDS STATEMENT WILL EXPIRE AT 5 AM PDT EARLY THIS MORNING... CONDITIONS CONTINUE TO IMPROVE ON AREA BEACHES EARLY THIS MORNING. THEREFORE...THE BEACH HAZARD STATEMENT WILL BE ALLOWED TO EXPIRE. * LOCATIONS...ALL EXPOSED WEST AND NORTHWEST FACING BEACHES AND SOME SOUTHWEST FACING BEACHES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARD STATEMENT MEANS THE POTENTIALLY DANGEROUS CONDITIONS MAY EXIST ON SPECIFIC BEACHES. THESE HAZARDS MAY INCLUDE LARGE SHORE BREAK...STRONG RIP CURRENTS...STRONG LONGSHORE CURRENTS AND POSSIBLY SNEAKER WAVES. ALL OF WHICH COULD BE LIFE THREATENING. NEVER TURN YOUR BACK ON THE OCEAN. COASTLINE FROM SONOMA COUNTY SOUTH THROUGH MONTEREY COUNTY. IN PARTICULAR WEST TO NORTHWEST FACING BEACHES...INCLUDING BUT NOT LIMITED TO...OCEAN BEACH...MONTARA STATE BEACH AND MARINA STATE BEACH. && $$
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.