Alert archive / California / Beach Hazards Statements in 2022
Beach Hazards Statement 7, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this beach hazards statement at Apr 4, 2022, 4:33 PM PDT for 6 counties in California. It took effect at Apr 5, 2022, 3:00 AM PDT. It was in force for 42 hr.
The area
The counties it named.
The facts
- Issued
- Apr 4, 2022, 4:33 PM PDT (23:33 UTC)
- In effect from
- Apr 5, 2022, 3:00 AM PDT
- Expired
- Apr 6, 2022, 9:00 PM PDT
- In force
- 42 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 23:31 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, 11.6 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
- 1169 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 152 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
932 WHUS46 KMTR 042333 CFWMTR Coastal Hazard Message National Weather Service San Francisco CA 433 PM PDT Mon Apr 4 2022 .A moderate period northwest swell arrives overnight with a period between 14 to 16 seconds with swell heights over 11 feet from coastal Sonoma County to coastal Monterey County. The swell arrives over the northern waters early Tuesday morning, moving southward impacting area beaches through Wednesday evening, resulting in a high risk of sneaker waves and strong rip currents. Swell periods will diminish slightly to 13 to 15 seconds on Wednesday, but the risk for sneaker waves and rip currents will persist. Additionally during this time period, the high energy of this swell may result in larger breaking waves in the surf zone from 18 to 22 feet. Swell heights and periods are expected to diminish below risk threshold Wednesday overnight into Thursday. On days with high sneaker wave risk, the ocean can appear deceptively calm with long lulls between larger wave sets. This may lead to individuals venturing onto exposed coastal features where infrequent but powerful waves can overwhelm them, knocking them into the cold, restless ocean where the possibility of hypothermia or drowning is severe. Each year, individuals lose their life during similar sneaker wave events along the California coast. If visiting the coast this weekend, respect the power of the ocean, remain vigilant of your surroundings, and avoiding venturing onto exposed coastal features where sudden, powerful waves can put your life at risk. And as always, never turn your back to the ocean! CAZ006-505-509-529-530-051200- /O.NEW.KMTR.BH.S.0007.220405T1000Z-220407T0400Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- San Francisco Peninsula Coast-Northern Monterey Bay- Southern Monterey Bay and Big Sur Coast- 433 PM PDT Mon Apr 4 2022 ...BEACH HAZARDS STATEMENT IN EFFECT FROM 3 AM PDT TUESDAY THROUGH WEDNESDAY EVENING... * WHAT...A moderate period northwest swell at 13 to 16 seconds associated with swell heights over 11 feet arrives early Tuesday morning, impacting area beaches through Wednesday night. * WHERE...San Francisco, Coastal North Bay Including Point Reyes National Seashore, San Francisco Peninsula Coast, Northern Monterey Bay and Southern Monterey Bay and Big Sur Coast. * WHEN...From 3 AM PDT Tuesday through Wednesday evening. * IMPACTS...High risk of sneaker waves and strong rip currents. Larger breaking waves in the surf zone may be possible. * ADDITIONAL DETAILS...Stay well away from the shoreline, expect dangerous, potentially deadly high risk of sneaker waves and strong rip currents. Beachcombing is not advised during this timeframe. Stay of coastal rocks and jetties. Keep children close, keep pets on leashes, and never turn your back to the ocean. This swell may also provide occasional larger breaking waves in the surf zone from 18 to 22 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
4 follow-up statements
956 WHUS46 KMTR 051032 CFWMTR Coastal Hazard Message National Weather Service San Francisco CA 332 AM PDT Tue Apr 5 2022 CAZ006-505-509-529-530-052200- /O.CON.KMTR.BH.S.0007.000000T0000Z-220407T0400Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- San Francisco Peninsula Coast-Northern Monterey Bay- Southern Monterey Bay and Big Sur Coast- 332 AM PDT Tue Apr 5 2022 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY EVENING... * WHAT...Northwest swell 10 to 14 feet at 13 to 15 seconds. Large breaking waves of 14 to 18 feet in the surf zone. * WHERE...Coastal North Bay Including Point Reyes National Seashore, Southern Monterey Bay and Big Sur Coast, San Francisco Peninsula Coast, San Francisco and Northern Monterey Bay. * WHEN...Through Wednesday evening. * IMPACTS...Large breaking waves in the surf zone of 14 to 18 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Beach Hazard Statement for large shore break means that conditions are present to support large breaking waves in shallow water. These large breaking waves can lead to back and neck injuries. Swimmers should avoid swimming in areas of large shore break and always swim near a lifeguard. Be sure to always keep your eyes on the ocean. && $$
985 WHUS46 KMTR 052334 CFWMTR Coastal Hazard Message National Weather Service San Francisco CA 434 PM PDT Tue Apr 5 2022 CAZ006-505-509-529-530-061300- /O.CON.KMTR.BH.S.0007.000000T0000Z-220407T0400Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- San Francisco Peninsula Coast-Northern Monterey Bay- Southern Monterey Bay and Big Sur Coast- 434 PM PDT Tue Apr 5 2022 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY EVENING... * WHAT...Northwest swell 11 to 14 feet at 13 to 15 seconds. Large breaking waves of 14 to 18 feet in the surf zone. * WHERE...Coastal North Bay Including Point Reyes National Seashore, Southern Monterey Bay and Big Sur Coast, San Francisco Peninsula Coast, San Francisco and Northern Monterey Bay. * WHEN...Through Wednesday evening. * IMPACTS...Large breaking waves in the surf zone of 14 to 18 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
802 WHUS46 KMTR 061015 CFWMTR Coastal Hazard Message National Weather Service San Francisco CA 315 AM PDT Wed Apr 6 2022 CAZ006-505-509-529-530-062200- /O.CON.KMTR.BH.S.0007.000000T0000Z-220407T0400Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- San Francisco Peninsula Coast-Northern Monterey Bay- Southern Monterey Bay and Big Sur Coast- 315 AM PDT Wed Apr 6 2022 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS EVENING... * WHAT...Northwest swell 11 to 14 feet at 13 to 15 seconds. Large breaking waves of 14 to 18 feet in the surf zone. * WHERE...Coastal North Bay Including Point Reyes National Seashore, Southern Monterey Bay and Big Sur Coast, San Francisco Peninsula Coast, San Francisco and Northern Monterey Bay. * WHEN...Through this evening. * IMPACTS...Large breaking waves in the surf zone of 14 to 18 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Beach Hazard Statement for large shore break means that conditions are present to support large breaking waves in shallow water. These large breaking waves can lead to back and neck injuries. Swimmers should avoid swimming in areas of large shore break and always swim near a lifeguard. Be sure to always keep your eyes on the ocean. && $$
973 WHUS46 KMTR 062115 CFWMTR Coastal Hazard Message National Weather Service San Francisco CA 215 PM PDT Wed Apr 6 2022 CAZ006-505-509-529-530-070400- /O.CON.KMTR.BH.S.0007.000000T0000Z-220407T0400Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- San Francisco Peninsula Coast-Northern Monterey Bay- Southern Monterey Bay and Big Sur Coast- 215 PM PDT Wed Apr 6 2022 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...Northwest swell 11 to 14 feet at 13 to 15 seconds. Large breaking waves of 14 to 18 feet in the surf zone. * WHERE...Coastal North Bay Including Point Reyes National Seashore, Southern Monterey Bay and Big Sur Coast, San Francisco Peninsula Coast, San Francisco and Northern Monterey Bay. * WHEN...Until 9 PM PDT this evening. * IMPACTS...Large breaking waves in the surf zone of 14 to 18 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 |
|---|---|---|---|---|
| Apr 3, 8:37 PM PDT | Small Craft Advisory | MTR | 24 hr | |
| Apr 4, 2:53 AM PDT | Small Craft Advisory | MTR | 66 hr |
Nearby
Beach Hazards Statements in California, 2022Every beach hazards statement in 2022
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.