Alert archive / California / Beach Hazards Statements in 2016
Beach Hazards Statement 17, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this beach hazards statement at Oct 15, 2016, 3:10 AM PDT for 6 counties in California. It was in force for 24 hr.
The area
The counties it named.
The facts
- Issued
- Oct 15, 2016, 3:10 AM PDT (10:10 UTC)
- Expired
- Oct 16, 2016, 3:00 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 10:12 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, 10.2 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
- 576 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 176 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
934 WHUS46 KMTR 151010 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 310 AM PDT SAT OCT 15 2016 CAZ006-505-509-529-530-152200- /O.NEW.KMTR.BH.S.0017.161015T1010Z-161016T1000Z/ /O.CON.KMTR.CF.Y.0006.161016T1600Z-161017T2200Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 310 AM PDT SAT OCT 15 2016 ...BEACH HAZARDS STATEMENT IN EFFECT THROUGH LATE TONIGHT... ...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 9 AM SUNDAY TO 3 PM PDT MONDAY... THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS ISSUED A BEACH HAZARDS STATEMENT FOR LARGE SHORE BREAK...WHICH IS IN EFFECT THROUGH LATE TONIGHT. * COASTAL FLOODING...COASTAL FLOODING WILL BE POSSIBLE SUNDAY THROUGH MONDAY AFTERNOON DUE TO LARGE ASTRONOMICAL HIGH TIDE. THE LARGEST TIDES OF THE YEAR OCCUR DURING THE FULL MOON BETWEEN THE MONTHS OF NOVEMBER THROUGH FEBRUARY. * BEACH HAZARDS... STRONG RIP CURRENTS... LARGE SHORE BREAK... SNEAKER WAVES... AND MODERATE WAVE RUNUP. * TIMING...BEACH HAZARDS THROUGH SATURDAY AND INTO SATURDAY NIGHT. COASTAL FLOODING WILL BE HIGHLY CORRELATED WITH HIGH TIDE WHICH WILL OCCUR AROUND NOON SUNDAY...MIDNIGHT MONDAY MORNING AND AROUND 1 PM MONDAY AFTERNOON. * LOCATION... WEST AND NORTHWEST FACING BEACHES AND LOW LYING COASTAL AREAS. * IMPACTS... STRONG RIP CURRENTS CAN EXHAUST AND PULL SWIMMERS FURTHER OUT TO SEA. LARGE SHORE BREAK...SNEAKER WAVES... AND WAVE RUNUP CAN RESULT IN INJURY OR KNOCK UNSUSPECTING PEOPLE INTO THE OCEAN. LOCAL INUNDATION OF BEACHES AND LOW- LYING AREAS ALONG THE COASTLINE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE. A BEACH HAZARD STATEMENT FOR LARGE SHORE BREAK MEANS THAT CONDITIONS ARE PRESENT TO SUPPORT LARGE BREAKING WAVES IN SHALLOW WATER. THESE LARGE BREAKING WAVES CAN LEAD TO BACK AND NECK INJURIES. SWIMMERS SHOULD AVOID SWIMMING IN AREAS OF LARGE SHORE BREAK AND ALWAYS SWIM NEAR A LIFEGUARD. BE SURE TO ALWAYS KEEP YOUR EYES ON THE OCEAN. && $$
2 follow-up statements
549 WHUS46 KMTR 151432 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 732 AM PDT SAT OCT 15 2016 CAZ006-505-509-529-530-160300- /O.EXT.KMTR.CF.Y.0006.161015T1432Z-161017T2200Z/ /O.CON.KMTR.BH.S.0017.000000T0000Z-161016T1000Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 732 AM PDT SAT OCT 15 2016 ...COASTAL FLOOD ADVISORY NOW IN EFFECT UNTIL 3 PM PDT MONDAY... ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE TONIGHT... * COASTAL FLOODING...COASTAL FLOODING WILL BE POSSIBLE SUNDAY THROUGH MONDAY AFTERNOON DUE TO LARGE ASTRONOMICAL HIGH TIDE. THE LARGEST TIDES OF THE YEAR OCCUR DURING THE FULL MOON BETWEEN THE MONTHS OF NOVEMBER THROUGH FEBRUARY. * BEACH HAZARDS... STRONG RIP CURRENTS... LARGE SHORE BREAK... SNEAKER WAVES... AND MODERATE WAVE RUNUP. * TIMING...BEACH HAZARDS THROUGH SATURDAY AND INTO SATURDAY NIGHT. COASTAL FLOODING WILL BE HIGHLY CORRELATED WITH HIGH TIDES EACH DAY. THESE WILL OCCUR AROUND NOON TODAY...MIDNIGHT TONIGHT... NOON SUNDAY...MIDNIGHT SUNDAY NIGHT...AND AROUND 1 PM MONDAY AFTERNOON. * LOCATION... WEST AND NORTHWEST FACING BEACHES AND LOW LYING COASTAL AREAS. * IMPACTS... STRONG RIP CURRENTS CAN EXHAUST AND PULL SWIMMERS FURTHER OUT TO SEA. LARGE SHORE BREAK...SNEAKER WAVES... AND WAVE RUNUP CAN RESULT IN INJURY OR KNOCK UNSUSPECTING PEOPLE INTO THE OCEAN. LOCAL INUNDATION OF BEACHES AND LOW- LYING AREAS ALONG THE COASTLINE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE. A BEACH HAZARD STATEMENT FOR LARGE SHORE BREAK MEANS THAT CONDITIONS ARE PRESENT TO SUPPORT LARGE BREAKING WAVES IN SHALLOW WATER. THESE LARGE BREAKING WAVES CAN LEAD TO BACK AND NECK INJURIES. SWIMMERS SHOULD AVOID SWIMMING IN AREAS OF LARGE SHORE BREAK AND ALWAYS SWIM NEAR A LIFEGUARD. BE SURE TO ALWAYS KEEP YOUR EYES ON THE OCEAN. && $$
059 WHUS46 KMTR 160240 CFWMTR COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 740 PM PDT SAT OCT 15 2016 CAZ006-505-509-529-530-170200- /O.CON.KMTR.CF.Y.0006.000000T0000Z-161017T2200Z/ /O.CON.KMTR.BH.S.0017.000000T0000Z-161016T1000Z/ SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY- SOUTHERN MONTEREY BAY AND BIG SUR COAST- 740 PM PDT SAT OCT 15 2016 ...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT MONDAY... ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 3 AM PDT SUNDAY... * COASTAL FLOODING...COASTAL FLOODING WILL BE POSSIBLE SUNDAY THROUGH MONDAY AFTERNOON DUE TO LARGE ASTRONOMICAL HIGH TIDE. THE LARGEST TIDES OF THE YEAR OCCUR DURING THE FULL MOON BETWEEN THE MONTHS OF NOVEMBER THROUGH FEBRUARY. * BEACH HAZARDS... STRONG RIP CURRENTS... LARGE SHORE BREAK... SNEAKER WAVES... AND MODERATE WAVE RUNUP. * TIMING...BEACH HAZARDS THROUGH SATURDAY AND INTO SATURDAY NIGHT. COASTAL FLOODING WILL BE HIGHLY CORRELATED WITH HIGH TIDES EACH DAY. THESE WILL OCCUR AROUND NOON TODAY...MIDNIGHT TONIGHT... NOON SUNDAY...MIDNIGHT SUNDAY NIGHT...AND AROUND 1 PM MONDAY AFTERNOON. * LOCATION... WEST AND NORTHWEST FACING BEACHES AND LOW LYING COASTAL AREAS. * IMPACTS... STRONG RIP CURRENTS CAN EXHAUST AND PULL SWIMMERS FURTHER OUT TO SEA. LARGE SHORE BREAK...SNEAKER WAVES... AND WAVE RUNUP CAN RESULT IN INJURY OR KNOCK UNSUSPECTING PEOPLE INTO THE OCEAN. LOCAL INUNDATION OF BEACHES AND LOW- LYING AREAS ALONG THE COASTLINE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE. A BEACH HAZARD STATEMENT FOR LARGE SHORE BREAK MEANS THAT CONDITIONS ARE PRESENT TO SUPPORT LARGE BREAKING WAVES IN SHALLOW WATER. THESE LARGE BREAKING WAVES CAN LEAD TO BACK AND NECK INJURIES. SWIMMERS SHOULD AVOID SWIMMING IN AREAS OF LARGE SHORE BREAK AND ALWAYS SWIM NEAR A LIFEGUARD. 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 |
|---|---|---|---|---|
| Oct 14, 10:27 PM PDT | Coastal Flood Advisory | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 65 hr |
| Oct 15, 1:50 PM PDT | Flash Flood Watch | MTR | Monterey, San Mateo, Santa Clara, Santa Cruz | 30 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.