Alert archive / California / High Surf Advisories in 2018
High Surf Advisory 9, NWS San Diego, CA
NWS San Diego, CA issued this high surf advisory at Nov 27, 2018, 1:41 AM PST for Orange County, San Diego County, California. It took effect at Nov 28, 2018, 2:00 AM PST. It was in force for 3 days.
The area
The counties it named.
The facts
- Issued
- Nov 27, 2018, 1:41 AM PST (09:41 UTC)
- In effect from
- Nov 28, 2018, 2:00 AM PST
- Expired
- Dec 1, 2018, 1:16 PM PST
- In force
- 3 days
- Issued by
- NWS San Diego, CA
Counties Orange County, CA, San Diego County, CA
The radar
The San Diego radar (KNKX), 53 km from the middle of the area, began a volume at 09:45 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
San Diego, CA (KNKX), launched 00:00Z, 9.7 hours before the alert went out and 62 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
- 2533 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 31 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
357 WHUS46 KSGX 270941 CFWSGX Coastal Hazard Message National Weather Service San Diego CA 141 AM PST Tue Nov 27 2018 ...High Surf Wednesday into the Weekend... .Large west-northwest swell with a long period will arrive at the beaches Wednesday and continue through Friday in Orange County and through Saturday in San Diego County. This swell will produce high surf and strong rip currents, leading to hazardous swimming conditions. Swell and surf will gradually subside over the weekend. CAZ043-272200- /O.CAN.KSGX.BH.S.0011.181127T2000Z-181201T0600Z/ /O.NEW.KSGX.SU.Y.0009.181128T1000Z-181202T0400Z/ San Diego County Coastal Areas- 141 AM PST Tue Nov 27 2018 ...HIGH SURF ADVISORY IN EFFECT FROM 2 AM WEDNESDAY TO 8 PM PST SATURDAY... The National Weather Service in San Diego has issued a High Surf Advisory...which is in effect from 2 AM Wednesday to 8 PM PST Saturday. * Surf...6-10 feet, with isolated sets to 12 feet in southern San Diego County. * Timing...Surf to build tonight and Wednesday, peak Thursday into Friday morning, and taper off later Friday and Saturday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor coastal flooding during morning high tides and minor beach erosion are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ CAZ552-272200- /O.CAN.KSGX.BH.S.0011.181127T2000Z-181201T0600Z/ /O.NEW.KSGX.SU.Y.0009.181128T1000Z-181201T0600Z/ Orange County Coastal Areas- 141 AM PST Tue Nov 27 2018 ...HIGH SURF ADVISORY IN EFFECT FROM 2 AM WEDNESDAY TO 10 PM PST FRIDAY... The National Weather Service in San Diego has issued a High Surf Advisory...which is in effect from 2 AM Wednesday to 10 PM PST Friday. * Surf...5-8 feet, with isolated sets to 9 feet. * Timing...Surf to build tonight and Wednesday, peak Thursday into Friday morning, and taper off later Friday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor coastal flooding during morning high tides and minor beach erosion are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$
13 follow-up statements
078 WHUS46 KSGX 272133 CFWSGX Coastal Hazard Message National Weather Service San Diego CA 133 PM PST Tue Nov 27 2018 ...High Surf Wednesday into the Weekend... .Large west-northwest swell with a long period will arrive at the beaches Wednesday and continue through Friday in Orange County and through Saturday in San Diego County. This swell will produce high surf and strong rip currents, leading to hazardous swimming conditions. Swell and surf will gradually subside over the weekend. CAZ043-280545- /O.CON.KSGX.SU.Y.0009.181128T1000Z-181202T0400Z/ San Diego County Coastal Areas- 133 PM PST Tue Nov 27 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 AM WEDNESDAY TO 8 PM PST SATURDAY... * Surf...6-10 feet, with isolated sets to 12 feet in southern San Diego County. * Timing...Surf to build tonight and Wednesday, peak Thursday into Friday morning, and taper off later Friday and Saturday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor coastal flooding during morning high tides and minor beach erosion are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ CAZ552-280545- /O.CON.KSGX.SU.Y.0009.181128T1000Z-181201T0600Z/ Orange County Coastal Areas- 133 PM PST Tue Nov 27 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 AM WEDNESDAY TO 10 PM PST FRIDAY... * Surf...5-8 feet, with isolated sets to 9 feet. * Timing...Surf to build tonight and Wednesday, peak Thursday into Friday morning, and taper off later Friday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor coastal flooding during morning high tides and minor beach erosion are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ https://www.weather.gov/sandiego
356 WHUS46 KSGX 280334 CFWSGX Coastal Hazard Message National Weather Service San Diego CA 734 PM PST Tue Nov 27 2018 ...High Surf Wednesday into the Weekend... .A large, long period west-northwest swell will arrive at the beaches Wednesday and continue through Friday in Orange County and through Saturday in San Diego County. This swell will produce high surf and strong rip currents, leading to hazardous swimming conditions. Swell and surf will gradually subside over the weekend. CAZ043-281400- /O.CON.KSGX.SU.Y.0009.181128T1000Z-181202T0400Z/ San Diego County Coastal Areas- 734 PM PST Tue Nov 27 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 AM WEDNESDAY TO 8 PM PST SATURDAY... * Surf...6-10 feet, with isolated sets to 12 feet in southern San Diego County. * Timing...Surf will build tonight and Wednesday, peak Thursday into Friday morning, and taper off later Friday and Saturday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor coastal flooding during morning high tides and minor beach erosion are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ CAZ552-281400- /O.CON.KSGX.SU.Y.0009.181128T1000Z-181201T0600Z/ Orange County Coastal Areas- 734 PM PST Tue Nov 27 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 AM WEDNESDAY TO 10 PM PST FRIDAY... * Surf...5-8 feet, with isolated sets to 9 feet. * Timing...Surf will build tonight and Wednesday, peak Thursday into Friday morning, and taper off later Friday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor coastal flooding during morning high tides and minor beach erosion are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ https://www.weather.gov/sandiego JJT
207 WHUS46 KSGX 281025 CFWSGX Coastal Hazard Message National Weather Service San Diego CA 225 AM PST Wed Nov 28 2018 ...High Surf into the Weekend... .A long period west-northwest swell will build today and Thursday and continue through Friday in Orange County and through Saturday in San Diego County. This swell will produce high surf and strong rip currents, leading to hazardous swimming conditions. Swell and surf will gradually subside over the weekend. CAZ043-282200- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/ San Diego County Coastal Areas- 225 AM PST Wed Nov 28 2018 ...HIGH SURF ADVISORY IN EFFECT UNTIL 8 PM PST SATURDAY... * Surf...6-10 feet, with sets to 12 feet in southern San Diego County. * Timing...Surf will build today, peak Thursday into Friday morning, and subside later Friday and Saturday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor coastal flooding during morning high tides and minor beach erosion are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ CAZ552-282200- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181201T0600Z/ Orange County Coastal Areas- 225 AM PST Wed Nov 28 2018 ...HIGH SURF ADVISORY IN EFFECT UNTIL 10 PM PST FRIDAY... * Surf...5-8 feet, with sets to 9 feet. * Timing...Surf will build today, peak Thursday into Friday morning, and subside later Friday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor coastal flooding during morning high tides and minor beach erosion are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$
069 WHUS46 KSGX 282134 CFWSGX Coastal Hazard Message National Weather Service San Diego CA 134 PM PST Wed Nov 28 2018 ...High Surf into the Weekend... .A large west-northwest swell with a long period will continue to build into Thursday and Friday in Orange County and through Saturday in San Diego County. This swell will produce high surf and strong rip currents, leading to hazardous swimming conditions. Swell and surf will gradually subside over the weekend. CAZ043-290545- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/ San Diego County Coastal Areas- 134 PM PST Wed Nov 28 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST SATURDAY... * Surf...6-10 feet, with sets to 12 feet in southern San Diego County. * Timing...Surf will build today, peak Thursday into Friday morning, and subside later Friday and Saturday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor coastal flooding during morning high tides and minor beach erosion are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ CAZ552-290545- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181201T0600Z/ Orange County Coastal Areas- 134 PM PST Wed Nov 28 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST FRIDAY... * Surf...5-8 feet, with isolated sets to 9 feet. * Timing...Surf will build today, peak Thursday into Friday morning, and subside later Friday evening. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor coastal flooding during morning high tides and minor beach erosion are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ APR https://www.weather.gov/sandiego
731 WHUS46 KSGX 290507 CFWSGX Coastal Hazard Message National Weather Service San Diego CA 907 PM PST Wed Nov 28 2018 ...High Surf Conditions will Continue into the Weekend... .A large west-northwest swell with a long period will continue to build and persist through Friday in Orange County and through Saturday in San Diego County. This swell will produce high surf and strong rip currents, leading to hazardous swimming conditions. Swell and surf will gradually subside over the weekend. CAZ043-291600- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/ San Diego County Coastal Areas- 907 PM PST Wed Nov 28 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST SATURDAY... * Surf...6-10 feet, with sets to 12 feet in southern San Diego County. * Timing...Surf will build through Thursday, peak Thursday night and Friday, then subside on Saturday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor coastal flooding during morning high tides and minor beach erosion are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ CAZ552-291600- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181201T0600Z/ Orange County Coastal Areas- 907 PM PST Wed Nov 28 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST FRIDAY... * Surf...5-8 feet, with isolated sets to 10 feet. * Timing...Surf will build tonight and Thursday, peak Thursday night and Friday, then subside over the weekend. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor coastal flooding during morning high tides and minor beach erosion are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ https://www.weather.gov/sandiego
378 WHUS46 KSGX 291012 CFWSGX Coastal Hazard Message National Weather Service San Diego CA 212 AM PST Thu Nov 29 2018 ...High Surf will continue into the Weekend... .A large west-northwest swell will continue to bring high surf through Friday in Orange County and through Saturday in San Diego County. Swell and surf will gradually subside over the weekend. CAZ043-292200- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/ San Diego County Coastal Areas- 212 AM PST Thu Nov 29 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST SATURDAY... * Surf...7-12 feet. * Timing...Surf will build today, peak tonight into Friday, then gradually subside late Friday and Saturday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor coastal flooding during morning high tides and minor beach erosion are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ CAZ552-292200- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181201T0600Z/ Orange County Coastal Areas- 212 AM PST Thu Nov 29 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST FRIDAY... * Surf...5-10 feet. * Timing...Surf will build today, peak tonight into Friday, then gradually subside late Friday and Saturday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor coastal flooding during morning high tides and minor beach erosion are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$
003 WHUS46 KSGX 292154 CFWSGX Coastal Hazard Message National Weather Service San Diego CA 154 PM PST Thu Nov 29 2018 ...High Surf will continue into the weekend... .A large west-northwest swell will continue to bring high surf through Friday in Orange County and through Saturday in San Diego County. Swell and surf will gradually subside over the weekend. CAZ043-300600- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/ San Diego County Coastal Areas- 154 PM PST Thu Nov 29 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST SATURDAY... * Surf...6-10 feet, with sets to 12 feet in southern San Diego County. * Timing...Surf will build today, peak tonight into Friday, then gradually subside late Friday and Saturday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor coastal flooding during morning high tides and minor beach erosion are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ CAZ552-300600- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181201T0600Z/ Orange County Coastal Areas- 154 PM PST Thu Nov 29 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST FRIDAY... * Surf...5-8 feet, with isolated sets to 10 feet. * Timing...Surf will build today, peak tonight into Friday, then gradually subside late Friday and Saturday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor coastal flooding during morning high tides and minor beach erosion are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ Connolly https://www.weather.gov/sandiego
605 WHUS46 KSGX 300510 CFWSGX Coastal Hazard Message National Weather Service San Diego CA 910 PM PST Thu Nov 29 2018 ...High Surf will continue into the weekend... .A large west-northwest swell will continue to bring high surf through Friday in Orange County and through Saturday in San Diego County. Swell and surf will gradually subside over the weekend. CAZ043-301600- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/ San Diego County Coastal Areas- 910 PM PST Thu Nov 29 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST SATURDAY... * Surf...7-10 feet, with sets to 13 feet in southern San Diego County. * Timing...Surf will peak on Friday, then begin to gradually subside Friday night into Saturday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor coastal flooding during morning high tides and minor beach erosion are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ CAZ552-301600- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181201T0600Z/ Orange County Coastal Areas- 910 PM PST Thu Nov 29 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST FRIDAY... * Surf...6-8 feet, with isolated sets to 10 feet. * Timing...Surf will tonight into Friday, then begin to subside Friday night. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor coastal flooding during morning high tides and minor beach erosion are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ https://www.weather.gov/sandiego
477 WHUS46 KSGX 301333 CFWSGX Coastal Hazard Message National Weather Service San Diego CA 533 AM PST Fri Nov 30 2018 ...High Surf will continue into the weekend... .A large west-northwest swell will continue to bring high surf through Friday in Orange County and through Saturday in San Diego County. Swell and surf will gradually subside over the weekend. CAZ043-302200- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/ San Diego County Coastal Areas- 533 AM PST Fri Nov 30 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST SATURDAY... * Surf...6-10 feet with sets to 12 feet in southern San Diego County. * Timing...Surf peaking today, then begin to gradually subside tonight into Saturday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor beach erosion is possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ CAZ552-302200- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181201T0600Z/ Orange County Coastal Areas- 533 AM PST Fri Nov 30 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * Surf...4-7 feet, with isolated sets to 9 feet. * Timing...Surf peaking today, then begin to gradually subside tonight into Saturday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor beach erosion is possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ SS https://www.weather.gov/sandiego
891 WHUS46 KSGX 302111 CFWSGX Coastal Hazard Message National Weather Service San Diego CA 111 PM PST Fri Nov 30 2018 ...High Surf will continue into the weekend... .A large west-northwest swell will continue to bring high surf through Friday in Orange County and through Saturday in San Diego County. Swell and surf will gradually subside over the weekend. CAZ043-010600- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/ San Diego County Coastal Areas- 111 PM PST Fri Nov 30 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST SATURDAY... * Surf...6-10 feet with sets to 12 feet in southern San Diego County. Friday may see some sets to 14-15 feet in favored locations. * Timing...Surf peaking today, then beginning to gradually subside tonight into Saturday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor beach erosion is possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ CAZ552-010600- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181201T0600Z/ Orange County Coastal Areas- 111 PM PST Fri Nov 30 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * Surf...5-8 feet, with sets to 9 feet in favored spots. * Timing...Surf peaking today, then beginning to gradually subside tonight into Saturday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor beach erosion is possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ Rodriguez https://www.weather.gov/sandiego
422 WHUS46 KSGX 010503 CFWSGX Coastal Hazard Message National Weather Service San Diego CA 903 PM PST Fri Nov 30 2018 ...High Surf will continue into the weekend... .A large west-northwest swell will continue to bring high surf into Saturday in San Diego and Orange Counties. Swell and surf will gradually subside Saturday through Saturday night. CAZ552-011400- /O.EXT.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/ Orange County Coastal Areas- 903 PM PST Fri Nov 30 2018 ...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 8 PM PST SATURDAY... * Surf...5-8 feet, with sets to 9 feet in favored spots. * Timing...Surf gradually subsiding Saturday and Saturday night. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor beach erosion is possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ CAZ043-011400- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/ San Diego County Coastal Areas- 903 PM PST Fri Nov 30 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST SATURDAY... * Surf...6-9 feet with sets to 11 feet, highest in southern San Diego County. * Timing...Surf gradually subsiding Saturday and Saturday night. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor beach erosion is possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ Maxwell
225 WHUS46 KSGX 011325 CFWSGX Coastal Hazard Message National Weather Service San Diego CA 525 AM PST Sat Dec 1 2018 ...High Surf will continue into the weekend... .A large west-northwest swell will continue to bring high surf through this evening in San Diego and Orange Counties. Swell and surf will gradually subside through the day. CAZ043-012200- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/ San Diego County Coastal Areas- 525 AM PST Sat Dec 1 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST THIS EVENING... * Surf...5-8 feet with sets to 10 feet, highest in southern San Diego County. * Timing...Surf gradually subsiding through the day. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor beach erosion is possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ CAZ552-012200- /O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/ Orange County Coastal Areas- 525 AM PST Sat Dec 1 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST THIS EVENING... * Surf...4-7 feet with sets to 8 feet in favored spots. * Timing...Surf gradually subsiding through the day. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. Minor beach erosion is possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area...producing localized beach erosion and dangerous swimming conditions. && $$ ss https://www.weather.gov/sandiego
818 WHUS46 KSGX 012116 CFWSGX Coastal Hazard Message National Weather Service San Diego CA 116 PM PST Sat Dec 1 2018 CAZ043-552-020600- /O.CAN.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/ /O.NEW.KSGX.BH.S.0012.181201T2116Z-181203T0200Z/ San Diego County Coastal Areas-Orange County Coastal Areas- 116 PM PST Sat Dec 1 2018 ...BEACH HAZARDS STATEMENT IN EFFECT THROUGH SUNDAY AFTERNOON... ...HIGH SURF ADVISORY IS CANCELLED... The National Weather Service in San Diego has issued a Beach Hazards Statement...which is in effect through Sunday afternoon. The High Surf Advisory has been cancelled. * Surf...3-6 feet with max sets to 7 feet in favored spots. * Changes Since Last Issuance...The surf has steadily fallen since Friday night and is now below the High Surf Advisory criteria of 7 feet at most beaches. However, above average surf of 3 to 6 feet is forecast through Sunday afternoon. A Beach Hazard Statement for above average surf and strong rip currents was issued and will be in effect through 6 PM Sunday. * Impacts...Increased risk of drowning due to elevated surf and strong rip currents. Sneaker waves and other hazards can create life-threatening conditions in the surf zone. * Surf Reports...At 1 PM Saturday the surf was 5 feet at Huntington Beach and Mission Beach, and 4 feet at San Clemente and Solana Beach. PRECAUTIONARY/PREPAREDNESS ACTIONS... A beach hazards statement is issued when threats such as strong rip currents...elevated surf heights...minor tidal overflow...or lightning are possible at local beaches. Obey posted warning signs and flags and talk to a lifeguard before swimming. Use caution when in or near the water and always swim near a lifeguard. && $$ Moede https://www.weather.gov/sandiego
What forecasters said that day
The local office's own words before this high surf advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Diego, CA wrote its last area forecast discussion before this high surf advisory went out at Nov 26, 9:10 PM PST, 4 hours 31 minutes earlier.
Area forecast discussion, Nov 26, 9:10 PM PST, 4 hours 31 minutes before
Area Forecast Discussion
National Weather Service San Diego CA
910 PM PST Mon Nov 26 2018
.SYNOPSIS...
Fair and very mild weather will continue through Tuesday. Locally
gusty northeast winds will occur through and below passes and
canyons through Tuesday morning. Cooling will begin Wednesday as
onshore flow strengthens and the marine air moves farther inland. A
low pressure trough speeding across the Pacific will bring rain,
snow to the mountain peaks, and gusty westerly winds. Locally heavy
rain will likely occur on the coastal mountain slopes. Another
system could bring more precipitation this weekend.
&&
.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
Other than some patchy high clouds, skies were clear across SoCal at
8 PM PDT. The 00Z Miramar sounding had a shallow weak inversion base
near 1000 FT MSL. Winds were NW 10 KT or less below 3500 FT and
solidly NE above through 10K FT. The sfc gradients were holding at 7
MBS offshore from SW NV to KSAN, but NE winds were mostly 15-20 MPH
in the windiest spots. It was quite dry with RH values at numerous
stations inland at or below 15%. The winds are likely to pick up a
bit overnight into Tue morning, combined with the low RH well
inland, will continue an elevated fire weather threat there.
Looks like the offshore gradient, coupled with cool drainage flow
should hold any stratus/fog development offshore tonight. Wednesday
will be a transition day as onshore flow strengthens. The marine
layer will be returning Tue night with low clouds expected to spread
inland over coastal areas and into the western valleys, where some
fog is possible. No forecast changes this evening. New...HYDROLOGY
DISCUSSION added below.
From previous discussion...
The Pacific storm system is still on track to bring widespread rain
Thursday, possibly starting as early as Wednesday evening. Rainfall
amounts vary with each model, but it still looks like around or
slightly under one inch will prevail at lower elevations, though
confidence is increasing that orographic southwest-facing slopes
will receive substantially more, perhaps 3-5 inches locally, from
Wednesday night through Friday morning, as southwest flow in the 850-
700 MB will be saturated with speeds in the 20-40 knot range over
the mountains. GFS has been consistent with a weak atmospheric river
in our area, with 500 kg/m/s values during recent runs, and
saturation mostly up to 600-650 MB. Timing of the maximum moisture
and forcing along the front is likely to be late morning-early
afternoon Thursday, though probably a bit later in San Diego County.
The cold air aloft will stay mostly to the north, so snow levels
will be quite high, 8000+ feet Thursday morning, then 6500-7000 feet
by Thursday evening, so snow will mostly be restricted to the
highest mountains of San Bernardino/Riverside County. With tight
pressure height gradients aloft, strong winds will occur in the
mountains and parts of the deserts Thursday/Thursday night, with
gust potential over 60 MPH.
Precip should end Friday morning, but models, somewhat
inconsistently, are showing a weaker but colder system moving
through sometime over the weekend, which could bring more rain and
some mountain snows, but probably nothing excessive.
&&
.HYDROLOGY...
A fast-moving low pressure system will drive east across CA on
Thursday. Current indications are that it will pull a cold front
across the CWA from NW to SE on Thursday fed by a moisture plume of
just over one inch. Strong upslope flow should concentrate the
heaviest precip amounts of 3 inches or more on the coastal slopes
for the duration of the storm. Due to the speed of the system,
widespread excessive rainfall and flooding is not expected. However,
models are showing cold frontal structure to the sfc winds, and
support aloft by the nose of a strong jet aloft. Organized heavier
rainfall is possible along and just ahead of the front, and the cold
air aloft trailing it will set the stage for post-frontal convective
showers and possible thunderstorms. Rainfall rates are likley to be
briefly heavy at time of frontal passage. It will be more difficult
to determine the timing of any convective rainfall potential in any
less organized activity behind the front later Thu/Thu night. At
this time rainfall rates are expected to reach 1/2 inch per hour
near the front. In any heavy convection/thunderstorm development
though, rates could reach 1/2 inch or more in 15 minutes. These
rates are capable of triggering debris flows, urban flooding, and
ponding of water in low-lying and poorly drained areas. Greatest
impact appears to be for Thursday. Where available, check latest
briefing sheets for updates on forecast rainfall timing and rates.
&&
.AVIATION...
270430...FEW/SCT high clouds AOA 25,000 ft and unrestricted vis
through Tuesday afternoon. Low clouds will likely return to the
coast Tuesday night.
&&
.MARINE...
No hazardous marine weather is expected through Tuesday. Combined
seas will increase to 9-11 ft on Wednesday, followed by gusty west-
northwest winds Thursday through Saturday. This will likely generate
conditions hazardous to small craft for the latter half of the week.
&&
.BEACHES...
A 9-11 ft swell at 16-18 seconds from 290 degrees will generate high
surf, strong rip currents, and the potential for minor coastal
flooding and minor beach erosion beginning on Wednesday and likely
continuing into the weekend. A Beach Hazards Statement remains in
effect for Tuesday afternoon through Friday evening.
&&
.FIRE WEATHER...
Low RH will continue inland through Tuesday, with some recovery late
in the day as winds turn back onshore. Northeast winds will hold
overnight into early Tuesday morning at 15 to 20 MPH along the
coastal slopes and foothills, with isolated gusts 25-30 MPH below
wind-favored canyons and passes. Otherwise the wind will trend
weaker and turn back onshore by Tue afternoon. Better RH recovery
will occur tomorrow night through Wednesday, with wetting rains
Thursday.
&&
.SKYWARN...
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.
&&
.SGX WATCHES/WARNINGS/ADVISORIES...
CA...Beach Hazards Statement from Tuesday afternoon through Friday
evening for Orange County Coastal Areas-San Diego County
Coastal Areas.
PZ...NONE.
&&
PUBLIC...10/Maxwell
FIRE WEATHER/Hydrology...10
AVIATION/MARINE/BEACHES...JJTThe office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 27, 12:47 PM PST | Flash Flood Watch | SGX | Orange, Riverside, San Bernardino, San Diego | 61 hr |
| Nov 27, 1:57 PM PST | Small Craft Advisory | SGX | 5 days |
Nearby
High Surf Advisories in California, 2018Every high surf advisory in 2018
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.