Alert archive / California / Small Craft Advisories in 2018
Small Craft Advisory 21, NWS San Diego, CA
NWS San Diego, CA issued this small craft advisory at Dec 26, 2018, 1:52 PM PST. It took effect at Dec 27, 2018, 10:00 AM PST. It was in force for 46 hr.
The area
The counties it named.
The facts
- Issued
- Dec 26, 2018, 1:52 PM PST (21:52 UTC)
- In effect from
- Dec 27, 2018, 10:00 AM PST
- Expired
- Dec 29, 2018, 7:52 AM PST
- In force
- 46 hr
- Issued by
- NWS San Diego, CA
The text
As transmitted.
227 WHUS76 KSGX 262152 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service San Diego CA 152 PM PST Wed Dec 26 2018 PZZ750-775-270600- /O.NEW.KSGX.SC.Y.0021.181227T1800Z-181228T2100Z/ Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm- Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 152 PM PST Wed Dec 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM THURSDAY TO 1 PM PST FRIDAY... The National Weather Service in San Diego has issued a Small Craft Advisory...which is in effect from 10 AM Thursday to 1 PM PST Friday. * Winds...Gusty northwest winds 25-30 kts expected over open coastal waters Thursday afternoon and evening. Offshore flow will begin to take over the weather pattern Friday morning and afternoon, bringing 25-35 kt wind gusts out of the northeast along coastal areas of Orange County and northern San Diego County. * Waves/Seas...North-northwest swell with combined seas 8-10 feet near San Clemente Island, while 4-6 feet near the coast. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ APR
9 follow-up statements
343 WHUS76 KSGX 270044 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service San Diego CA 444 PM PST Wed Dec 26 2018 ...GUSTY WINDS AND CHOPPY SEAS LATE THURSDAY AND FRIDAY... .Strong northwest winds Thursday with peak gusts to 30-35 knots will switch to gusty offshore flow from the northeast early Friday, with similar gusts. Combined seas up to 10 ft possible near San Clemente island Thursday, and choppy seas likely Friday as offshore winds strengthen. PZZ750-775-271400- /O.CON.KSGX.SC.Y.0021.181227T1800Z-181228T2100Z/ Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm- Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 444 PM PST Wed Dec 26 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM THURSDAY TO 1 PM PST FRIDAY... * Winds...Strong northwest winds gusting to 30 kts for outer coastal waters Thursday, with peak gusts closer to 25 kts over the inner waters. Flow will switch offshore late Thursday, blowing from the northeast with peak gusts up to 35 kts possible at times into Friday. Winds Friday will be strongest over the northern inner waters, as well as the outer waters. * Waves/Seas...North-northwest swell with combined seas 8-10 feet near San Clemente Island Thursday, with 4-6 ft elsewhere. Steep waves and choppy seas will continue into Friday with the development of offshore flow, particularly off the coast of northern San Diego County. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ Rodriguez
127 WHUS76 KSGX 271334 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service San Diego CA 534 AM PST Thu Dec 27 2018 ...GUSTY WINDS AND CHOPPY SEAS TODAY AND FRIDAY... .Strong northwest winds today with peak gusts to 20-25 knots will switch to gusty northeast early Friday, with similar gusts. Combined seas near 10 ft and steep waves possible today, mainly near San Clemente Island. PZZ750-775-272200- /O.CON.KSGX.SC.Y.0021.181227T1800Z-181228T2100Z/ Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm- Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 534 AM PST Thu Dec 27 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 1 PM PST FRIDAY... * Winds...Northwest winds gusting to 25 kt today, strongest near San Clemente Island. Winds switching to the northeast with gusts 20-25 kt tonight, strongest near the coast of Orange County and northern San Diego County. * Waves/Seas...Combined seas of 8-10 ft and steep waves this morning through this evening. Seas will lower tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ SS
920 WHUS76 KSGX 272106 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service San Diego CA 106 PM PST Thu Dec 27 2018 ...GUSTY WINDS AND CHOPPY SEAS TODAY AND FRIDAY... .Strong northwest winds today with peak gusts to 20-25 knots will switch to gusty northeast winds early Friday, with similar gusts. Combined seas near 10 ft and steep waves possible today, mainly near San Clemente Island. PZZ750-775-280600- /O.CON.KSGX.SC.Y.0021.000000T0000Z-181228T2100Z/ Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm- Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 106 PM PST Thu Dec 27 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST FRIDAY... * Winds...Northwest winds gusting to 25 kt today, strongest near San Clemente Island. Winds switching to the northeast with gusts 20-25 kt tonight, strongest near the coast of Orange County and northern San Diego County. * Waves/Seas...Combined seas of 8-10 ft and steep waves through this evening. Seas will lower tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$
200 WHUS76 KSGX 280548 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service San Diego CA 948 PM PST Thu Dec 27 2018 ...GUSTY WINDS AND CHOPPY SEAS TONIGHT THROUGH FRIDAY... .Strong northeast winds this evening into Friday expected with peak gusts to 20-30 knots. Combined seas near 10 ft and steep waves possible tonight, mainly near San Clemente Island. PZZ750-775-281400- /O.CON.KSGX.SC.Y.0021.000000T0000Z-181228T2100Z/ Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm- Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 948 PM PST Thu Dec 27 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST FRIDAY... * Winds...Northeast with gusts 20-30 kt tonight, strongest near the coast of Orange County and northern San Diego County. * Waves/Seas...Combined seas of 8-10 ft and steep waves through this evening. Seas will lower early Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ APR
780 WHUS76 KSGX 281248 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service San Diego CA 448 AM PST Fri Dec 28 2018 ...GUSTY WINDS AND CHOPPY SEAS TONIGHT THROUGH FRIDAY... .Strong northeast winds expected today, with peak gusts to 20-30 knots. Combined seas near 10 ft and steep waves possible this morning, mainly near San Clemente Island. PZZ750-775-282100- /O.CON.KSGX.SC.Y.0021.000000T0000Z-181228T2100Z/ Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm- Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 448 AM PST Fri Dec 28 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST THIS AFTERNOON... * Winds...Northeast with gusts 20-30 kt this morning, strongest near the coast of Orange County and northern San Diego County. * Waves/Seas...Combined seas of 8-10 ft and steep waves through this morning. Seas will lower later today. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$
111 WHUS76 KSGX 282002 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service San Diego CA 1202 PM PST Fri Dec 28 2018 ...GUSTY WINDS AND CHOPPY SEAS THROUGH SATURDAY MORNING... .Strong northeast winds expected through Saturday morning, with peak gusts of 20-25 knots. Combined seas of 8-10 ft and steep waves possible through Saturday morning, mainly near San Clemente Island. Winds to diminish late Saturday morning. PZZ750-775-290415- /O.EXT.KSGX.SC.Y.0021.000000T0000Z-181229T1800Z/ Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm- Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 1202 PM PST Fri Dec 28 2018 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM PST SATURDAY... * Winds...Northeast winds with gusts 20-25 kt through Saturday morning, with the strongest winds near the coast of Orange County and northern San Diego County. * Waves/Seas...Combined seas of 8-10 ft and steep waves through Saturday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$
242 WHUS76 KSGX 290411 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service San Diego CA 811 PM PST Fri Dec 28 2018 ...GUSTY WINDS AND CHOPPY SEAS THROUGH SATURDAY MORNING... .Strong northeast winds expected through Saturday morning, with peak gusts of 20-30 knots. Combined seas of 8-10 ft and steep waves possible through Saturday morning, mainly near San Clemente Island. Winds to diminish late Saturday morning. PZZ750-775-291400- /O.CON.KSGX.SC.Y.0021.000000T0000Z-181229T1800Z/ Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm- Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 811 PM PST Fri Dec 28 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SATURDAY... * Winds...Northeast winds with gusts 20-30 kt through Saturday morning, with the strongest winds near the coast of Orange County and northern San Diego County. * Waves/Seas...Combined seas of 8-10 ft and steep waves through Saturday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ APR
505 WHUS76 KSGX 290948 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service San Diego CA 148 AM PST Sat Dec 29 2018 ...GUSTY WINDS AND CHOPPY SEAS THROUGH THIS MORNING... .Strong northeast winds expected through this morning, with peak gusts of 20-25 knots. Combined seas around 6 ft and rough seas through this morning, mainly near San Clemente Island. Winds will weaken late this morning. PZZ750-775-291800- /O.CON.KSGX.SC.Y.0021.000000T0000Z-181229T1800Z/ Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm- Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 148 AM PST Sat Dec 29 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * Winds...Northeast winds with gusts 20-25 kt through this morning, with the strongest winds near the coast of Orange County and northern San Diego County. * Waves/Seas...Combined seas around 6 ft with rough conditions through this morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$
595 WHUS76 KSGX 291552 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service San Diego CA 752 AM PST Sat Dec 29 2018 PZZ750-775-291700- /O.CAN.KSGX.SC.Y.0021.000000T0000Z-181229T1800Z/ Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm- Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 752 AM PST Sat Dec 29 2018 ...SMALL CRAFT ADVISORY IS CANCELLED... The National Weather Service in San Diego has cancelled the Small Craft Advisory. Winds and seas have fallen below Small Craft Advisory levels, so the advisory has been cancelled. $$
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 25, 8:48 PM PST | Small Craft Advisory | SGX | 9 hr |
Nearby
Small Craft Advisories in California, 2018Every small craft 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.