Alert archive / California / Beach Hazards Statements in 2016
Beach Hazards Statement 16, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this beach hazards statement at Oct 7, 2016, 11:47 AM PDT for 6 counties in California. It took effect at Oct 9, 2016, 2:00 PM PDT. It was in force for 27 hr.
The area
The counties it named.
The facts
- Issued
- Oct 7, 2016, 11:47 AM PDT (18:47 UTC)
- In effect from
- Oct 9, 2016, 2:00 PM PDT
- Expired
- Oct 10, 2016, 5:00 PM PDT
- In force
- 27 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 18:52 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, 6.8 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
- 2349 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -27 m²/s²
- 0-3 km storm-relative helicity
- 1 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
436 WHUS46 KMTR 071847 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 1147 AM PDT FRI OCT 7 2016 ...LONG PERIOD NORTHWESTERLY SWELL ON SUNDAY AFTERNOON... .A STRONG NORTHERN PACIFIC LOW THAT IS RESPONSIBLE FOR PRODUCING GALE FORCE WINDS WILL GENERATE A LONG PERIOD NORTHWEST SWELL THAT WILL IMPACT THE NORTHERN AND CENTRAL CALIFORNIA COAST SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON. SWELL PERIODS WILL START BETWEEN 18 AND 20 SECONDS...THEN GRADUALLY DECREASE BY MONDAY EVENING AS SWELL HEIGHTS INCREASE TO AROUND 5 FEET. CAZ006-505-509-529-530-081000- /O.NEW.KMTR.BH.S.0016.161009T2100Z-161011T0000Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 1147 AM PDT FRI OCT 7 2016 ...BEACH HAZARDS STATEMENT IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON... 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 SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON. * HAZARDS...STRONG RIP AND LONGSHORE CURRENTS...POSSIBLE LARGE SHORE BREAK...AND MODERATE WAVE RUNUP. * TIMING...SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON * LOCATION...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. BE SURE TO ALWAYS KEEP YOUR EYES ON THE OCEAN. && $$
8 follow-up statements
604 WHUS46 KMTR 080555 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 1055 PM PDT FRI OCT 7 2016 ...LONG PERIOD NORTHWESTERLY SWELL ON SUNDAY AFTERNOON... .A STRONG NORTHERN PACIFIC LOW THAT IS RESPONSIBLE FOR PRODUCING GALE FORCE WINDS WILL GENERATE A LONG PERIOD NORTHWEST SWELL THAT WILL IMPACT THE NORTHERN AND CENTRAL CALIFORNIA COAST SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON. SWELL PERIODS WILL START BETWEEN 18 AND 20 SECONDS...THEN GRADUALLY DECREASE BY MONDAY EVENING AS SWELL HEIGHTS INCREASE TO AROUND 5 FEET. CAZ006-505-509-529-530-082100- /O.CON.KMTR.BH.S.0016.161009T2100Z-161011T0000Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 1055 PM PDT FRI OCT 7 2016 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON... * HAZARDS...STRONG RIP AND LONGSHORE CURRENTS...POSSIBLE LARGE SHORE BREAK...AND MODERATE WAVE RUNUP. * TIMING...SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON * LOCATION...ALL EXPOSED WEST AND NORTHWEST FACING BEACHES AND SOME SOUTHWEST FACING BEACHES * POTENTIAL IMPACTS...STRONG RIP AND LONG SHORE CURRENTS MAY QUICKLY EXHAUST SWIMMERS. LARGE SHORE BREAK CAN RESULT IN INJURY. WAVE RUNUP OF ANY KIND CAN PULL UNSUSPECTING PEOPLE INTO COLD FRIGID AND TURBULENT WATERS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARD STATEMENT MEANS THE POTENTIALLY DANGEROUS CONDITIONS MAY EXIST ON SPECIFIC BEACHES. THESE HAZARDS MAY INCLUDE LARGE SHORE BREAK...STRONG RIP CURRENTS...STRONG LONGSHORE CURRENTS AND POSSIBLY SNEAKER WAVES. ALL OF WHICH COULD BE LIFE THREATENING. BE SURE TO ALWAYS KEEP YOUR EYES ON THE OCEAN. && $$
703 WHUS46 KMTR 081542 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 842 AM PDT SAT OCT 8 2016 ...LONG PERIOD NORTHWESTERLY SWELL ON SUNDAY AFTERNOON... .A STRONG NORTHERN PACIFIC LOW THAT IS RESPONSIBLE FOR PRODUCING GALE FORCE WINDS WILL GENERATE A LONG PERIOD NORTHWEST SWELL THAT WILL IMPACT THE NORTHERN AND CENTRAL CALIFORNIA COAST SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON. SWELL PERIODS WILL START BETWEEN 18 AND 20 SECONDS...THEN GRADUALLY DECREASE BY MONDAY EVENING AS SWELL HEIGHTS INCREASE TO AROUND 5 FEET. CAZ006-505-509-529-530-090400- /O.CON.KMTR.BH.S.0016.161009T2100Z-161011T0000Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 842 AM PDT SAT OCT 8 2016 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON... * HAZARDS...STRONG RIP AND LONGSHORE CURRENTS...POSSIBLE LARGE SHORE BREAK...AND MODERATE WAVE RUNUP. * TIMING...SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON * LOCATION...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. BE SURE TO ALWAYS KEEP YOUR EYES ON THE OCEAN. && $$
191 WHUS46 KMTR 090253 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 753 PM PDT SAT OCT 8 2016 ...LONG PERIOD NORTHWESTERLY SWELL ON SUNDAY AFTERNOON... .A STRONG NORTHERN PACIFIC LOW THAT IS RESPONSIBLE FOR PRODUCING GALE FORCE WINDS WILL GENERATE A LONG PERIOD NORTHWEST SWELL THAT WILL IMPACT THE NORTHERN AND CENTRAL CALIFORNIA COAST SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON. SWELL PERIODS WILL START BETWEEN 18 AND 20 SECONDS...THEN GRADUALLY DECREASE BY MONDAY EVENING AS SWELL HEIGHTS INCREASE TO AROUND 5 FEET. CAZ006-505-509-529-530-092100- /O.CON.KMTR.BH.S.0016.161009T2100Z-161011T0000Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 753 PM PDT SAT OCT 8 2016 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON... * HAZARDS...STRONG RIP AND LONGSHORE CURRENTS...POSSIBLE LARGE SHORE BREAK...AND MODERATE WAVE RUNUP. * TIMING...SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON * LOCATION...ALL EXPOSED WEST AND NORTHWEST FACING BEACHES AND SOME SOUTHWEST FACING BEACHES * POTENTIAL IMPACTS...STRONG RIP AND LONG SHORE CURRENTS MAY QUICKLY EXHAUST SWIMMERS. LARGE SHORE BREAK CAN RESULT IN INJURY. WAVE RUNUP OF ANY KIND CAN PULL UNSUSPECTING PEOPLE INTO COLD FRIGID AND TURBULENT WATERS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARD STATEMENT MEANS THE POTENTIALLY DANGEROUS CONDITIONS MAY EXIST ON SPECIFIC BEACHES. THESE HAZARDS MAY INCLUDE LARGE SHORE BREAK...STRONG RIP CURRENTS...STRONG LONGSHORE CURRENTS AND POSSIBLY SNEAKER WAVES. ALL OF WHICH COULD BE LIFE THREATENING. BE SURE TO ALWAYS KEEP YOUR EYES ON THE OCEAN. && $$
071 WHUS46 KMTR 091611 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 911 AM PDT SUN OCT 9 2016 ...LONG PERIOD NORTHWESTERLY SWELL ON SUNDAY AFTERNOON... .A STRONG NORTH PACIFIC LOW HAS GENERATED LONG PERIOD NORTHWEST SWELL THAT WILL IMPACT THE NORTHERN AND CENTRAL CALIFORNIA COAST SUNDAY AFTERNOON THROUGH MONDAY. SWELL PERIODS WILL START BETWEEN 18 AND 20 SECONDS...THEN GRADUALLY DECREASE BY MONDAY EVENING AS SWELL HEIGHTS INCREASE TO AROUND 5 FEET. CAZ006-505-509-529-530-100015- /O.CON.KMTR.BH.S.0016.161009T2100Z-161011T0000Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 911 AM PDT SUN OCT 9 2016 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 2 PM PDT THIS AFTERNOON THROUGH MONDAY AFTERNOON... * HAZARDS...STRONG RIP AND LONGSHORE CURRENTS...POSSIBLE LARGE SHORE BREAK...AND MODERATE WAVE RUNUP. * TIMING...THIS AFTERNOON THROUGH MONDAY. * LOCATION...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. BE SURE TO ALWAYS KEEP YOUR EYES ON THE OCEAN. && $$
361 WHUS46 KMTR 100125 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 625 PM PDT SUN OCT 9 2016 ...LONG PERIOD NORTHWEST SWELL THROUGH MONDAY AFTERNOON... CAZ006-505-509-529-530-101100- /O.CON.KMTR.BH.S.0016.000000T0000Z-161011T0000Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 625 PM PDT SUN OCT 9 2016 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH MONDAY AFTERNOON... * HAZARDS...STRONG RIP AND LONGSHORE CURRENTS...POSSIBLE LARGE SHORE BREAK...AND MODERATE WAVE RUNUP. * TIMING...THROUGH MONDAY AFTERNOON. * LOCATION...ALL EXPOSED WEST AND NORTHWEST FACING BEACHES AND SOME SOUTHWEST FACING BEACHES. * POTENTIAL IMPACTS...STRONG RIP AND LONG SHORE CURRENTS MAY QUICKLY EXHAUST SWIMMERS. LARGE SHORE BREAK CAN RESULT IN INJURY. WAVE RUNUP OF ANY KIND CAN PULL UNSUSPECTING PEOPLE INTO COLD FRIGID AND TURBULENT WATERS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARD STATEMENT MEANS THE POTENTIALLY DANGEROUS CONDITIONS MAY EXIST ON SPECIFIC BEACHES. THESE HAZARDS MAY INCLUDE LARGE SHORE BREAK...STRONG RIP CURRENTS...STRONG LONGSHORE CURRENTS AND POSSIBLY SNEAKER WAVES. ALL OF WHICH COULD BE LIFE THREATENING. BE SURE TO ALWAYS KEEP YOUR EYES ON THE OCEAN. && $$
378 WHUS46 KMTR 101235 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 535 AM PDT MON OCT 10 2016 ...LONG PERIOD NORTHWEST SWELL THROUGH THIS AFTERNOON... CAZ006-505-509-529-530-102345- /O.CON.KMTR.BH.S.0016.000000T0000Z-161011T0000Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 535 AM PDT MON OCT 10 2016 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON... * HAZARDS...STRONG RIP AND LONGSHORE CURRENTS...POSSIBLE LARGE SHORE BREAK...AND MODERATE WAVE RUNUP. * TIMING...THROUGH MONDAY AFTERNOON. * LOCATION...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. BE SURE TO ALWAYS KEEP YOUR EYES ON THE OCEAN. && $$
455 WHUS46 KMTR 101543 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 843 AM PDT MON OCT 10 2016 ...LONG PERIOD NORTHWEST SWELL THROUGH THIS AFTERNOON... CAZ006-505-509-529-530-102345- /O.CON.KMTR.BH.S.0016.000000T0000Z-161011T0000Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 843 AM PDT MON OCT 10 2016 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON... * HAZARDS...STRONG RIP AND LONGSHORE CURRENTS...POSSIBLE LARGE SHORE BREAK...AND MODERATE WAVE RUNUP. * TIMING...THROUGH EARLY MONDAY EVENING. * LOCATION...ALL EXPOSED WEST AND NORTHWEST FACING BEACHES AND SOME SOUTHWEST FACING BEACHES. * POTENTIAL IMPACTS...STRONG RIP AND LONG SHORE CURRENTS MAY QUICKLY EXHAUST SWIMMERS. LARGE SHORE BREAK CAN RESULT IN INJURY. WAVE RUNUP OF ANY KIND CAN PULL UNSUSPECTING PEOPLE INTO COLD FRIGID AND TURBULENT WATERS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARD STATEMENT MEANS THE POTENTIALLY DANGEROUS CONDITIONS MAY EXIST ON SPECIFIC BEACHES. THESE HAZARDS MAY INCLUDE LARGE SHORE BREAK...STRONG RIP CURRENTS...STRONG LONGSHORE CURRENTS AND POSSIBLY SNEAKER WAVES. ALL OF WHICH COULD BE LIFE THREATENING. BE SURE TO ALWAYS KEEP YOUR EYES ON THE OCEAN. && $$
166 WHUS46 KMTR 102344 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 444 PM PDT MON OCT 10 2016 CAZ006-505-509-529-530-110045- /O.EXP.KMTR.BH.S.0016.000000T0000Z-161011T0000Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 444 PM PDT MON OCT 10 2016 ...BEACH HAZARDS STATEMENT WILL EXPIRE AT 5 PM PDT THIS AFTERNOON... CONDITIONS CONTINUE TO IMPROVE ON AREA BEACHES LATE THIS AFTERNOON. THEREFORE...THE BEACH HAZARD STATEMENT WILL BE ALLOWED TO EXPIRE. 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. BE SURE TO ALWAYS KEEP YOUR EYES ON THE OCEAN. && $$
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.