Alert archive / California / Small Craft Advisories in 2021
Small Craft Advisory 27, NWS San Diego, CA
NWS San Diego, CA issued this small craft advisory at Dec 23, 2021, 4:34 AM PST. It took effect at Dec 23, 2021, 6:00 PM PST. It was in force for 22 hr.
The area
The counties it named.
The facts
- Issued
- Dec 23, 2021, 4:34 AM PST (12:34 UTC)
- In effect from
- Dec 23, 2021, 6:00 PM PST
- Expired
- Dec 24, 2021, 4:00 PM PST
- In force
- 22 hr
- Issued by
- NWS San Diego, CA
The text
As transmitted.
293 WHUS76 KSGX 231234 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service SAN DIEGO CA 434 AM PST Thu Dec 23 2021 PZZ750-775-232200- /O.NEW.KSGX.SC.Y.0027.211224T0200Z-211224T2000Z/ 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- 434 AM PST Thu Dec 23 2021 ...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON PST FRIDAY... * WHAT...South winds will increase this evening out ahead of a significant storm system, with gusts of 20 to 25 knots at times. Winds will shift to westerly Friday morning and continue to be gusty at times 20 to 25 knots. Combined seas of 5 to 10 feet. * WHERE...Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm and Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island. * WHEN...From 6 PM this evening to noon PST Friday. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...Heavy rain squalls and poor visibility should also be anticipated this evening through Friday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ jmb
6 follow-up statements
875 WHUS76 KSGX 232129 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service SAN DIEGO CA 129 PM PST Thu Dec 23 2021 PZZ750-775-240600- /O.CON.KSGX.SC.Y.0027.211224T0200Z-211224T2000Z/ Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm- Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 129 PM PST Thu Dec 23 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON PST FRIDAY... * WHAT...South winds with gusts 20 to 25 knots, gradually shifting to the west Friday morning. Winds weakening Friday afternoon. Combined seas of 4 to 7 feet and steep waves. * WHERE...Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm and Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island. * WHEN...From 6 PM this evening to noon PST Friday. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...Heavy rain and poor visibility are likely this evening through Friday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
845 WHUS76 KSGX 240444 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service SAN DIEGO CA 844 PM PST Thu Dec 23 2021 PZZ750-775-241245- /O.CON.KSGX.SC.Y.0027.000000T0000Z-211224T2000Z/ 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- 844 PM PST Thu Dec 23 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON FRIDAY... * WHAT...South winds 15 to 25 knots shifting west through Friday morning. Combined seas of 4 to 7 feet and steep waves. * WHERE...Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm and Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island. * WHEN...Through noon Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Moede
939 WHUS76 KSGX 240835 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service SAN DIEGO CA 1235 AM PST Fri Dec 24 2021 PZZ750-775-242000- /O.CON.KSGX.SC.Y.0027.000000T0000Z-211224T2000Z/ Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm- Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 1235 AM PST Fri Dec 24 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... * WHAT...Southwest to west winds 15 to 25 knots through midday. Combined seas of 4 to 8 feet and steep waves. * WHERE...Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm and Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island. * WHEN...Through Noon. * IMPACTS...Gusty winds combined with heavy squalls and rough seas with be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ jmb
426 WHUS76 KSGX 240849 AAA MWWSGX URGENT - MARINE WEATHER MESSAGE...UPDATED National Weather Service SAN DIEGO CA 1249 AM PST Fri Dec 24 2021 PZZ750-775-242000- /O.CON.KSGX.SC.Y.0027.000000T0000Z-211224T2000Z/ 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- 1249 AM PST Fri Dec 24 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... * WHAT...Southwest to west winds 15 to 25 knots through midday. Combined seas of 4 to 8 feet and steep waves. * WHERE...Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm and Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island. * WHEN...Through Noon. * IMPACTS...Gusty winds combined with heavy squalls and rough seas with be hazardous to small craft. * ADDITIONAL DETAILS...Another Pacific storm system could bring renewed small craft advisory conditions Monday afternoon through Tuesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ jmb
249 WHUS76 KSGX 241942 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service SAN DIEGO CA 1142 AM PST Fri Dec 24 2021 PZZ750-775-250000- /O.EXT.KSGX.SC.Y.0027.000000T0000Z-211225T0000Z/ Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm- Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 1142 AM PST Fri Dec 24 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * WHAT...Southwest to west winds 15 to 25 knots through this afternoon. Combined seas of 4 to 8 feet and steep waves. * WHERE...Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm and Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Gusty winds combined with heavy squalls and rough seas with be hazardous to small craft. * ADDITIONAL DETAILS...Another Pacific storm system could bring renewed small craft advisory conditions Monday afternoon through Tuesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Schenk
503 WHUS76 KSGX 250000 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service SAN DIEGO CA 400 PM PST Fri Dec 24 2021 PZZ750-775-250100- /O.EXP.KSGX.SC.Y.0027.000000T0000Z-211225T0000Z/ 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- 400 PM PST Fri Dec 24 2021 ...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 PM PST THIS AFTERNOON... Wind gusts have fallen below Small Craft Criteria and seas will gradually diminish through tonight. The Small Craft Advisory will be allowed to expire. $$ CO
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 23, 2:57 AM PST | Wind Advisory | SGX | Riverside, San Bernardino, San Diego | 39 hr |
| Dec 23, 3:01 AM PST | Winter Weather Advisory | SGX | Riverside, San Bernardino | 19 hr |
| Dec 23, 3:33 PM PST | Areal Flood Advisory | SGX | Riverside, San Bernardino | 3 hr |
Nearby
Small Craft Advisories in California, 2021Every small craft advisory in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.