Alert archive / California / Small Craft Advisories in 2021
Small Craft Advisory 20, NWS San Diego, CA
NWS San Diego, CA issued this small craft advisory at Apr 7, 2021, 11:38 AM PDT. It took effect at Apr 7, 2021, 5:00 PM PDT. It was in force for 3 days.
The area
The counties it named.
The facts
- Issued
- Apr 7, 2021, 11:38 AM PDT (18:38 UTC)
- In effect from
- Apr 7, 2021, 5:00 PM PDT
- Expired
- Apr 10, 2021, 9:00 PM PDT
- In force
- 3 days
- Issued by
- NWS San Diego, CA
The text
As transmitted.
158 WHUS76 KSGX 071838 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service SAN DIEGO CA 1138 AM PDT Wed Apr 7 2021 PZZ775-080245- /O.NEW.KSGX.SC.Y.0020.210408T0000Z-210409T1000Z/ Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 1138 AM PDT Wed Apr 7 2021 ...SMALL CRAFT ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 3 AM PDT FRIDAY... * WHAT...Northwest winds increasing to 15 to 20 kt with gusts 25 to 30 kt expected. * WHERE...Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island. * WHEN...From 5 PM this afternoon to 3 AM PDT Friday. The strongest winds are expected Thursday afternoon and Thursday night. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
11 follow-up statements
250 WHUS76 KSGX 072026 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service SAN DIEGO CA 126 PM PDT Wed Apr 7 2021 PZZ775-081200- /O.CON.KSGX.SC.Y.0020.210408T0000Z-210409T1000Z/ Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 126 PM PDT Wed Apr 7 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 3 AM PDT FRIDAY... * WHAT...Northwest winds increasing to 15 to 20 kt with gusts 25 to 30 kt expected mainly over the far outer waters. * WHERE...Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island. * WHEN...From 5 PM this afternoon to 3 AM PDT Friday. The strongest winds are expected Thursday afternoon and Thursday night. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
089 WHUS76 KSGX 080437 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service SAN DIEGO CA 937 PM PDT Wed Apr 7 2021 PZZ775-081315- /O.CON.KSGX.SC.Y.0020.000000T0000Z-210409T1000Z/ Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 937 PM PDT Wed Apr 7 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY... * WHAT...Northwest winds occasionally gusting 25 to 30 kt expected. * WHERE...Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island. * WHEN...Until 3 AM PDT Friday. The strongest winds are expected Thursday afternoon and Thursday night. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
211 WHUS76 KSGX 080908 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service SAN DIEGO CA 208 AM PDT Thu Apr 8 2021 PZZ775-082100- /O.CON.KSGX.SC.Y.0020.000000T0000Z-210409T1000Z/ Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 208 AM PDT Thu Apr 8 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY... * WHAT...Northwest winds developing today and gusting to 25 kt. * WHERE...Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island. * WHEN...Until 3 AM PDT Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
248 WHUS76 KSGX 081928 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service SAN DIEGO CA 1228 PM PDT Thu Apr 8 2021 PZZ775-090500- /O.EXT.KSGX.SC.Y.0020.000000T0000Z-210410T1800Z/ Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 1228 PM PDT Thu Apr 8 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM PDT SATURDAY... * WHAT...Northwest winds to 25 kts expected mainly over the far outer waters. * WHERE...Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island. * WHEN...Until 11 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...Winds will diminish slightly early Friday morning but will increase again for Friday afternoon and evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Schenk
244 WHUS76 KSGX 090402 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service SAN DIEGO CA 902 PM PDT Thu Apr 8 2021 PZZ775-091315- /O.CON.KSGX.SC.Y.0020.000000T0000Z-210410T1800Z/ Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 902 PM PDT Thu Apr 8 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT SATURDAY... * WHAT...Northwest winds gusting to 25 kts expected. * WHERE...Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island. * WHEN...Until 11 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...Winds will weaken slightly early Friday morning but will strengthen again for Friday afternoon and evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
731 WHUS76 KSGX 091203 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service SAN DIEGO CA 503 AM PDT Fri Apr 9 2021 PZZ775-092015- /O.CON.KSGX.SC.Y.0020.000000T0000Z-210410T1800Z/ Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 503 AM PDT Fri Apr 9 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT SATURDAY... * WHAT...Northwest winds 15 to 20 kt with gusts to 25 kt. * WHERE...Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island. * WHEN...Until 11 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Connolly
689 WHUS76 KSGX 092025 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service SAN DIEGO CA 125 PM PDT Fri Apr 9 2021 PZZ775-100430- /O.EXT.KSGX.SC.Y.0020.000000T0000Z-210411T0400Z/ Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 125 PM PDT Fri Apr 9 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM PDT SATURDAY... * WHAT...Northwest winds 15 to 20 kt with gusts to 25 kt. * WHERE...Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island. * WHEN...Until 9 PM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...Winds may diminish slightly Saturday morning but will increase again for the afternoon and evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Schenk
592 WHUS76 KSGX 100334 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service SAN DIEGO CA 834 PM PDT Fri Apr 9 2021 PZZ775-101315- /O.EXT.KSGX.SC.Y.0020.000000T0000Z-210410T1800Z/ Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 834 PM PDT Fri Apr 9 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM PDT SATURDAY... * WHAT...Northwest winds 15 to 20 kt with peak gusts to 25 kt. * WHERE...Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island. * WHEN...Until 9 PM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...Strongest winds will be around and west of San Clemente Island. Winds may weaken late Saturday morning but are expected to increase again for the afternoon and evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ CO
025 WHUS76 KSGX 101226 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service SAN DIEGO CA 526 AM PDT Sat Apr 10 2021 PZZ775-102100- /O.EXT.KSGX.SC.Y.0020.000000T0000Z-210411T0400Z/ Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 526 AM PDT Sat Apr 10 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...Northwest winds 15 to 20 kt with peak gusts to 25 kt. * WHERE...Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island. * WHEN...Until 9 PM PDT this evening. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...Strongest winds will be around and west of San Clemente Island. Winds will continue to weaken this morning but will increase again this afternoon and evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
115 WHUS76 KSGX 102046 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service SAN DIEGO CA 146 PM PDT Sat Apr 10 2021 PZZ775-110400- /O.CON.KSGX.SC.Y.0020.000000T0000Z-210411T0400Z/ Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 146 PM PDT Sat Apr 10 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...Northwest winds 15 to 20 kt with peak gusts to 25 kt. * WHERE...Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island. * WHEN...Until 9 PM PDT this evening. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...Strongest winds will be around and west of San Clemente Island. Winds will continue to weaken this morning but will increase again this afternoon and evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Maxwell
173 WHUS76 KSGX 110337 MWWSGX URGENT - MARINE WEATHER MESSAGE National Weather Service SAN DIEGO CA 837 PM PDT Sat Apr 10 2021 PZZ775-110445- /O.EXP.KSGX.SC.Y.0020.000000T0000Z-210411T0400Z/ Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island- 837 PM PDT Sat Apr 10 2021 ...SMALL CRAFT ADVISORY WILL EXPIRE AT 9 PM PDT THIS EVENING... The winds are steadily weakening and will soon be below critical thresholds. $$
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 2:48 AM PDT | Wind Advisory | SGX | Riverside, San Bernardino, San Diego | 45 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.