Alert archive / California / Gale Warnings in 2018
Gale Warning 4, NWS Los Angeles, CA
NWS Los Angeles, CA issued this gale warning at Feb 18, 2018, 2:11 AM PST. It took effect at Feb 18, 2018, 7:00 PM PST. It was in force for 32 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 18, 2018, 2:11 AM PST (10:11 UTC)
- In effect from
- Feb 18, 2018, 7:00 PM PST
- Expired
- Feb 20, 2018, 3:00 AM PST
- In force
- 32 hr
- Issued by
- NWS Los Angeles, CA
The text
As transmitted.
075 WHUS76 KLOX 181011 MWWLOX URGENT - MARINE WEATHER MESSAGE National Weather Service LOS ANGELES/OXNARD CA 211 AM PST Sun Feb 18 2018 PZZ670-673-182300- /O.CON.KLOX.SC.Y.0017.180218T1100Z-180219T0500Z/ /O.UPG.KLOX.GL.A.0004.180219T0500Z-180220T1100Z/ /O.NEW.KLOX.GL.W.0004.180219T0500Z-180220T1100Z/ Point Piedras Blancas to Point Sal from 10 to 60 NM- Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands- 211 AM PST Sun Feb 18 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... ...GALE WARNING IN EFFECT FROM 9 PM THIS EVENING TO 3 AM PST TUESDAY... The National Weather Service in Los Angeles/Oxnard has issued a Gale Warning, which is in effect from 9 PM this evening to 3 AM PST Tuesday. The Gale Watch is no longer in effect. * Winds...Northwest winds 20 to 30 kt with gusts to 40 kt are expected when winds are strongest. * Seas...Combined seas of 10 to 13 feet with periods around 10 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ PZZ676-182300- /O.CON.KLOX.SC.Y.0017.180218T1700Z-180219T0500Z/ /O.UPG.KLOX.GL.A.0004.180219T0500Z-180220T1100Z/ /O.NEW.KLOX.GL.W.0004.180219T0500Z-180220T1100Z/ Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands- 211 AM PST Sun Feb 18 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM PST THIS EVENING... ...GALE WARNING IN EFFECT FROM 9 PM THIS EVENING TO 3 AM PST TUESDAY... The National Weather Service in Los Angeles/Oxnard has issued a Gale Warning, which is in effect from 9 PM this evening to 3 AM PST Tuesday. The Gale Watch is no longer in effect. * Winds...Northwest winds 20 to 30 kt with gusts to 40 kt are expected when winds are strongest. * Seas...Combined seas of 10 to 13 feet with periods around 10 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ PZZ645-182300- /O.EXT.KLOX.SC.Y.0017.180218T1700Z-180219T1700Z/ /O.UPG.KLOX.GL.A.0004.180219T0500Z-180220T1100Z/ /O.NEW.KLOX.GL.W.0004.180219T1700Z-180220T0500Z/ Point Piedras Blancas to Point Sal westward out to 10 NM- 211 AM PST Sun Feb 18 2018 ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 AM THIS MORNING TO 9 AM PST MONDAY... ...GALE WARNING IN EFFECT FROM 9 AM TO 9 PM PST MONDAY... The National Weather Service in Los Angeles/Oxnard has issued a Gale Warning, which is in effect from 9 AM to 9 PM PST Monday. The Gale Watch is no longer in effect. * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 8 to 11 feet with periods around 10 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ PZZ650-655-182300- /O.CON.KLOX.SC.Y.0017.180219T0500Z-180220T1100Z/ East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA including Santa Cruz Island- Inner waters from Point Mugu to San Mateo Pt. CA including Santa Catalina and Anacapa Islands- 211 AM PST Sun Feb 18 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 3 AM PST TUESDAY... SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ RAT FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/LOSANGELES
9 follow-up statements
868 WHUS76 KLOX 181704 MWWLOX URGENT - MARINE WEATHER MESSAGE National Weather Service LOS ANGELES/OXNARD CA 904 AM PST Sun Feb 18 2018 PZZ670-673-190115- /O.CON.KLOX.SC.Y.0017.000000T0000Z-180219T0500Z/ /O.CON.KLOX.GL.W.0004.180219T0500Z-180220T1100Z/ Point Piedras Blancas to Point Sal from 10 to 60 NM- Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands- 904 AM PST Sun Feb 18 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... ...GALE WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 3 AM PST TUESDAY... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 10 to 13 feet with periods around 10 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ PZZ676-190115- /O.CON.KLOX.SC.Y.0017.000000T0000Z-180219T0500Z/ /O.CON.KLOX.GL.W.0004.180219T0500Z-180220T1100Z/ Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands- 904 AM PST Sun Feb 18 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... ...GALE WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 3 AM PST TUESDAY... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 9 to 12 feet with periods around 10 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ PZZ645-190115- /O.CON.KLOX.SC.Y.0017.000000T0000Z-180219T1700Z/ /O.CON.KLOX.GL.W.0004.180219T1700Z-180220T0500Z/ Point Piedras Blancas to Point Sal westward out to 10 NM- 904 AM PST Sun Feb 18 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST MONDAY... ...GALE WARNING REMAINS IN EFFECT FROM 9 AM TO 9 PM PST MONDAY... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 8 to 10 feet with periods around 10 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ PZZ650-655-190115- /O.CON.KLOX.SC.Y.0017.180219T0500Z-180220T1100Z/ East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA including Santa Cruz Island- Inner waters from Point Mugu to San Mateo Pt. CA including Santa Catalina and Anacapa Islands- 904 AM PST Sun Feb 18 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 3 AM PST TUESDAY... SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/LOSANGELES
762 WHUS76 KLOX 182222 MWWLOX URGENT - MARINE WEATHER MESSAGE National Weather Service LOS ANGELES/OXNARD CA 222 PM PST Sun Feb 18 2018 PZZ670-673-190630- /O.CON.KLOX.SC.Y.0017.000000T0000Z-180219T0500Z/ /O.CON.KLOX.GL.W.0004.180219T0500Z-180220T1100Z/ Point Piedras Blancas to Point Sal from 10 to 60 NM- Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands- 222 PM PST Sun Feb 18 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... ...GALE WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 3 AM PST TUESDAY... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 10 to 13 feet with periods around 10 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ PZZ676-190630- /O.CON.KLOX.SC.Y.0017.000000T0000Z-180219T0500Z/ /O.CON.KLOX.GL.W.0004.180219T0500Z-180220T1100Z/ Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands- 222 PM PST Sun Feb 18 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... ...GALE WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 3 AM PST TUESDAY... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 9 to 12 feet with periods around 10 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ PZZ645-190630- /O.CON.KLOX.SC.Y.0017.000000T0000Z-180219T1700Z/ /O.CON.KLOX.GL.W.0004.180219T1700Z-180220T0500Z/ Point Piedras Blancas to Point Sal westward out to 10 NM- 222 PM PST Sun Feb 18 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST MONDAY... ...GALE WARNING REMAINS IN EFFECT FROM 9 AM TO 9 PM PST MONDAY... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 8 to 10 feet with periods around 9 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ PZZ650-655-190630- /O.CON.KLOX.SC.Y.0017.180219T0500Z-180220T1100Z/ East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA including Santa Cruz Island- Inner waters from Point Mugu to San Mateo Pt. CA including Santa Catalina and Anacapa Islands- 222 PM PST Sun Feb 18 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 3 AM PST TUESDAY... SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/LOSANGELES
874 WHUS76 KLOX 190257 MWWLOX URGENT - MARINE WEATHER MESSAGE National Weather Service LOS ANGELES/OXNARD CA 657 PM PST Sun Feb 18 2018 PZZ670-673-676-191100- /O.CAN.KLOX.SC.Y.0017.000000T0000Z-180219T0500Z/ /O.EXT.KLOX.GL.W.0004.180219T0300Z-180220T1100Z/ Point Piedras Blancas to Point Sal from 10 to 60 NM- Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands- Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands- 657 PM PST Sun Feb 18 2018 ...GALE WARNING NOW IN EFFECT UNTIL 3 AM PST TUESDAY... The National Weather Service in Los Angeles/Oxnard has cancelled the previous Small Craft Advisory, and started the previous Gale Warning earlier. * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 13 to 16 feet with periods around 11 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ PZZ650-191100- /O.EXB.KLOX.GL.W.0004.180219T0300Z-180220T0500Z/ /O.UPG.KLOX.SC.Y.0017.180219T0500Z-180220T1100Z/ East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA including Santa Cruz Island- 657 PM PST Sun Feb 18 2018 ...GALE WARNING IN EFFECT UNTIL 9 PM PST MONDAY... The National Weather Service in Los Angeles/Oxnard has issued a Gale Warning, which is in effect until 9 PM PST Monday. The Small Craft Advisory is no longer in effect. * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 7 to 9 feet with periods around 8 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ PZZ655-191100- /O.EXT.KLOX.SC.Y.0017.180219T0257Z-180219T0900Z/ /O.EXB.KLOX.GL.W.0004.180219T0900Z-180220T0500Z/ Inner waters from Point Mugu to San Mateo Pt. CA including Santa Catalina and Anacapa Islands- 657 PM PST Sun Feb 18 2018 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 1 AM PST MONDAY... ...GALE WARNING IN EFFECT FROM 1 AM TO 9 PM PST MONDAY... The National Weather Service in Los Angeles/Oxnard has issued a Gale Warning, which is in effect from 1 AM to 9 PM PST Monday. * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 7 to 9 feet with periods around 7 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ PZZ645-191100- /O.CON.KLOX.SC.Y.0017.000000T0000Z-180219T1700Z/ /O.CON.KLOX.GL.W.0004.180219T1700Z-180220T0500Z/ Point Piedras Blancas to Point Sal westward out to 10 NM- 657 PM PST Sun Feb 18 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST MONDAY... ...GALE WARNING REMAINS IN EFFECT FROM 9 AM TO 9 PM PST MONDAY... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 11 to 14 feet with periods around 11 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/LOSANGELES
438 WHUS76 KLOX 191011 MWWLOX URGENT - MARINE WEATHER MESSAGE National Weather Service LOS ANGELES/OXNARD CA 211 AM PST Mon Feb 19 2018 PZZ645-192300- /O.CON.KLOX.SC.Y.0017.000000T0000Z-180219T1700Z/ /O.CON.KLOX.GL.W.0004.180219T1700Z-180220T0500Z/ Point Piedras Blancas to Point Sal westward out to 10 NM- 211 AM PST Mon Feb 19 2018 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING... ...GALE WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM PST THIS EVENING... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 11 to 14 feet with periods around 12 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ PZZ670-673-676-192300- /O.CON.KLOX.GL.W.0004.000000T0000Z-180220T1100Z/ Point Piedras Blancas to Point Sal from 10 to 60 NM- Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands- Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands- 211 AM PST Mon Feb 19 2018 ...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM PST TUESDAY... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 13 to 16 feet with periods around 11 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ PZZ650-192300- /O.CON.KLOX.GL.W.0004.000000T0000Z-180220T0500Z/ East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA including Santa Cruz Island- 211 AM PST Mon Feb 19 2018 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 8 to 10 feet with periods around 8 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ PZZ655-192300- /O.CON.KLOX.GL.W.0004.000000T0000Z-180220T0500Z/ Inner waters from Point Mugu to San Mateo Pt. CA including Santa Catalina and Anacapa Islands- 211 AM PST Mon Feb 19 2018 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 8 to 10 feet with periods around 7 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/LOSANGELES
641 WHUS76 KLOX 191648 MWWLOX URGENT - MARINE WEATHER MESSAGE National Weather Service LOS ANGELES/OXNARD CA 848 AM PST Mon Feb 19 2018 PZZ645-200100- /O.EXP.KLOX.SC.Y.0017.000000T0000Z-180219T1700Z/ /O.CON.KLOX.GL.W.0004.180219T1700Z-180220T0500Z/ Point Piedras Blancas to Point Sal westward out to 10 NM- 848 AM PST Mon Feb 19 2018 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... ...SMALL CRAFT ADVISORY WILL EXPIRE AT 9 AM PST THIS MORNING... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 11 to 14 feet with periods around 12 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ PZZ670-673-676-200100- /O.CON.KLOX.GL.W.0004.000000T0000Z-180220T1100Z/ Point Piedras Blancas to Point Sal from 10 to 60 NM- Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands- Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands- 848 AM PST Mon Feb 19 2018 ...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM PST TUESDAY... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 13 to 16 feet with periods around 12 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ PZZ650-200100- /O.CON.KLOX.GL.W.0004.000000T0000Z-180220T0500Z/ East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA including Santa Cruz Island- 848 AM PST Mon Feb 19 2018 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 8 to 10 feet with periods around 8 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ PZZ655-200100- /O.CON.KLOX.GL.W.0004.000000T0000Z-180220T0500Z/ Inner waters from Point Mugu to San Mateo Pt. CA including Santa Catalina and Anacapa Islands- 848 AM PST Mon Feb 19 2018 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 8 to 10 feet with periods around 7 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/LOSANGELES
654 WHUS76 KLOX 191650 CCA MWWLOX URGENT - MARINE WEATHER MESSAGE...CORRECTED National Weather Service LOS ANGELES/OXNARD CA 850 AM PST Mon Feb 19 2018 PZZ645-200100- /O.EXP.KLOX.SC.Y.0017.000000T0000Z-180219T1700Z/ /O.CON.KLOX.GL.W.0004.180219T1700Z-180220T0500Z/ Point Piedras Blancas to Point Sal westward out to 10 NM- 850 AM PST Mon Feb 19 2018 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... ...SMALL CRAFT ADVISORY WILL EXPIRE AT 9 AM PST THIS MORNING... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 11 to 14 feet with periods around 12 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ PZZ670-673-676-200100- /O.CON.KLOX.GL.W.0004.000000T0000Z-180220T1100Z/ Point Piedras Blancas to Point Sal from 10 to 60 NM- Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands- Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands- 850 AM PST Mon Feb 19 2018 ...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM PST TUESDAY... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 13 to 16 feet with periods around 12 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ PZZ650-200100- /O.CON.KLOX.GL.W.0004.000000T0000Z-180220T0500Z/ East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA including Santa Cruz Island- 850 AM PST Mon Feb 19 2018 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 8 to 10 feet with periods around 8 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ PZZ655-200100- /O.COR.KLOX.GL.W.0004.000000T0000Z-180220T0500Z/ Inner waters from Point Mugu to San Mateo Pt. CA including Santa Catalina and Anacapa Islands- 850 AM PST Mon Feb 19 2018 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 8 to 10 feet with periods around 7 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/LOSANGELES
563 WHUS76 KLOX 192206 MWWLOX URGENT - MARINE WEATHER MESSAGE National Weather Service LOS ANGELES/OXNARD CA 206 PM PST Mon Feb 19 2018 PZZ670-673-676-200615- /O.CON.KLOX.GL.W.0004.000000T0000Z-180220T1100Z/ Point Piedras Blancas to Point Sal from 10 to 60 NM- Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands- Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands- 206 PM PST Mon Feb 19 2018 ...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM PST TUESDAY... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 13 to 16 feet with periods around 12 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ PZZ650-200500- /O.CON.KLOX.GL.W.0004.000000T0000Z-180220T0500Z/ East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA including Santa Cruz Island- 206 PM PST Mon Feb 19 2018 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 8 to 10 feet with periods around 8 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ PZZ655-200500- /O.CON.KLOX.GL.W.0004.000000T0000Z-180220T0500Z/ Inner waters from Point Mugu to San Mateo Pt. CA including Santa Catalina and Anacapa Islands- 206 PM PST Mon Feb 19 2018 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 8 to 10 feet with periods around 7 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ PZZ645-200500- /O.CON.KLOX.GL.W.0004.000000T0000Z-180220T0500Z/ Point Piedras Blancas to Point Sal westward out to 10 NM- 206 PM PST Mon Feb 19 2018 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 11 to 14 feet with periods around 13 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/LOSANGELES
385 WHUS76 KLOX 200421 MWWLOX URGENT - MARINE WEATHER MESSAGE National Weather Service LOS ANGELES/OXNARD CA 821 PM PST Mon Feb 19 2018 PZZ645-201100- /O.CAN.KLOX.GL.W.0004.000000T0000Z-180220T0500Z/ /O.NEW.KLOX.SC.Y.0018.180220T0421Z-180220T1100Z/ Point Piedras Blancas to Point Sal westward out to 10 NM- 821 PM PST Mon Feb 19 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM PST TUESDAY... ...GALE WARNING IS CANCELLED... The National Weather Service in Los Angeles/Oxnard has issued a Small Craft Advisory, which is in effect until 3 AM PST Tuesday. The Gale Warning has been cancelled. * Winds...Northwest winds 15 to 25 kt with gusts to 30 kt are expected when winds are strongest. * Seas...Combined seas of 11 to 14 feet with periods around 13 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ PZZ650-655-201100- /O.CAN.KLOX.GL.W.0004.000000T0000Z-180220T0500Z/ /O.NEW.KLOX.SC.Y.0018.180220T0421Z-180220T1100Z/ East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA including Santa Cruz Island- Inner waters from Point Mugu to San Mateo Pt. CA including Santa Catalina and Anacapa Islands- 821 PM PST Mon Feb 19 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM PST TUESDAY... ...GALE WARNING IS CANCELLED... The National Weather Service in Los Angeles/Oxnard has issued a Small Craft Advisory, which is in effect until 3 AM PST Tuesday. The Gale Warning has been cancelled. * Winds...Northwest winds 15 to 25 kt with gusts to 30 kt are expected when winds are strongest. * Seas...Combined seas of 8 to 10 feet with periods around 7 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that hazardous sea conditions will exist for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions. && $$ PZZ670-673-676-201100- /O.CON.KLOX.GL.W.0004.000000T0000Z-180220T1100Z/ Point Piedras Blancas to Point Sal from 10 to 60 NM- Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands- Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands- 821 PM PST Mon Feb 19 2018 ...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM PST TUESDAY... * Winds...Northwest winds 20 to 30 kt with gusts to 35 kt are expected when winds are strongest. * Seas...Combined seas of 13 to 16 feet with periods around 12 seconds are expected when waves are largest. SEE THE COASTAL WATERS FORECAST (CWFLOX) FOR MORE DETAILS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occuring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/LOSANGELES
806 WHUS76 KLOX 201105 MWWLOX URGENT - MARINE WEATHER MESSAGE National Weather Service LOS ANGELES/OXNARD CA 305 AM PST Tue Feb 20 2018 PZZ670-673-676-201215- /O.EXP.KLOX.GL.W.0004.000000T0000Z-180220T1100Z/ Point Piedras Blancas to Point Sal from 10 to 60 NM- Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands- Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands- 305 AM PST Tue Feb 20 2018 ...GALE WARNING HAS EXPIRED... The winds have subsided to below small craft levels. $$ PZZ645-650-655-201215- /O.EXP.KLOX.SC.Y.0018.000000T0000Z-180220T1100Z/ Point Piedras Blancas to Point Sal westward out to 10 NM- East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA including Santa Cruz Island- Inner waters from Point Mugu to San Mateo Pt. CA including Santa Catalina and Anacapa Islands- 305 AM PST Tue Feb 20 2018 ...SMALL CRAFT ADVISORY HAS EXPIRED... The winds have subsided. $$ FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/LOSANGELES
What forecasters said that day
The local office's own words before this gale warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Los Angeles, CA wrote its last area forecast discussion before this gale warning went out at Feb 17, 10:07 PM PST, 4 hours 4 minutes earlier.
Area forecast discussion, Feb 17, 10:07 PM PST, 4 hours 4 minutes before
Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
1007 PM PST Sat Feb 17 2018
.SYNOPSIS...17/810 AM.
Above normal temperatures are expected today. An upper level
trough will bring a sharp cooling trend to the area Sunday through
Monday, with areas of gusty winds, night through morning low
clouds, and some light measurable rain and mountain snow across
Los Angeles County and northern Ventura County. Monday night and
Tuesday night will be very cold. Cool and mostly dry weather is
expected Tuesday through Friday.
&&
.UPDATE...
Under sunny skies and weak offshore flow max temps rose to above
normal everywhere today. Due to an earlier sea breeze max temps
were a couple of cooler along the coasts today but inland temps
warmed a couple of degrees.
Big changes still on tap for Sunday and next week. The big
question for the next 12 hours is when will the marine layer form.
Satellite shows some low clouds forming across the outer waters
but the inner waters are still cloud free. The 00Z NAM shows the
eddy spinning up a little later than previously thought and that
makes sense give the lack of clouds now. The low clouds will no
likely form more towards dawn rather than just after midnight.
The other question will be how long the clouds will stick around.
The new NAM boundary layer humidities show plenty of moisture
sticking around in the afternoon. But the official NAM cloud
forecast for the airports does not show much in the way of
afternoon clouds. Still have to think there is at least a 30
percent chc of the beaches staying cloudy all afternoon tomorrow.
Big cooling still on tap and almost all cst/vly max temps will be
in the mid 60s.
Quick look at the latest NAM fcst for precip on late Sunday and
Monday shows some scattered showers over the area esp over the
mtns and the southern half of LA county but nothing too much at
all.
It still looks like Tuesday morning's temps are the main weather
concern over the next few days.
Current short term forecast is in good shape and no updates are
planned.
&&
.SHORT TERM (SAT-TUE)...17/715 PM.
Onshore flow will increase tonight into Sun, and a return to marine
layer clouds is expected along many coastal areas into some of the
adjacent vlys later tonight into Sun morning. The low clouds will be
part of a shallow marine inversion of around 500 ft deep later
tonight with patchy dense fog possible, then the inversion should
increase Sun morning to lift any dense fog. Some of these clouds may
persist into Sun afternoon as well especially along the coast.
Otherwise, mostly clear skies can be expected tonight with sunny to
partly cloudy skies on Sun.
Gradients will be strongly onshore Sun afternoon, with the NAM
forecasting LAX-DAG to be +7.5 mb at 00Z. Gusty NW winds near
advisory levels will affect the Central Coast Sun afternoon, with
gusty SW winds possibly to advisory levels expected over the L.A.
County mtns and deserts. Temps are forecast to cool substantially
for Sun back to near normal to slightly below normal, with highs in
the warmest vlys and inland coastal areas in the mid 60s to near 70.
The large mainly inside slider upper trof will push into CA Sun
night and Mon. The 12Z EC and NAM have a slightly more over-water
trajectory with this trof and a wetter solution, while the 12Z GFS
continues to have the more inland trajectory and drier. Thinking
here is a slight edge toward the NAM/EC with slightly more precip
potential Sun night and Mon, but precip amounts will still be rather
light at less then 0.10 inch except perhaps up to 0.25 inch on
the N slopes. An eddy will try to develop Sun evening over the
near shore waters of the SoCal bight, but it is looking more like
a surface cold front will move into the area and disrupt this
development with increasing NW flow over the coastal waters thru
the night. There will still be a SW lower level flow into srn VTU
County and L.A. County Sun evening before the flow turns NW later
Sun night.
Deep marine layer clouds should move into mainly L.A. County Sun
evening and linger into early Mon morning along with a slight chance
to chance of rain from the coast to the coastal slopes. Snow levels
will drop quickly by late Sun night down to 3500 to 4500 ft, with
some snow possible on the N mtn slopes.
Upslope flow will bring clouds and a chance of snow showers to the N
mtn slopes and the eastern Cuyama Vly foothills on Mon into Mon
Night. Snow showers will probably affect travel on Interstate 5 in
NW L.A. County and over the Grapevine late Sun night thru Mon night
with about 1 to 3 inches of snow possible. The snow combined with
strong and gusty NW to N winds is expected to create hazardous
wintry driving conditions with poor visibilities in snow and
blowing snow at times. A Winter Weather Advisory for snow and
strong winds is in effect for the L.A./VTU County mtns from 6 PM
Sun thru late Mon night. Please see the latest Winter Weather
message product (LAXWSWLOX) for more details.
The latest model runs were also showing some moisture with a slight
chance of showers on Mon moving into western and central SLO/SBA
Counties and the Ventura County interior valleys, San Fernando Vly
and Santa Clarita Vly. The snow level is expected to drop even
more by early Mon, down to 1500 to 2500 ft. With the extremely
low snow levels, there is the potential for light snowfall in the
hills above 1500 ft in these areas especially for Mon morning.
Strong and gusty NW to N winds are expected Sun evening for the
Santa Ynez Mtns and S SBA County coast, with strong and gusty NW
winds for the mtns and deserts. Gusty NW to N winds will affect much
of the forecast area on Mon. Wind Advisories will likely be needed
for Sun evening in some areas including the SBA County S coast and
adjacent mtns. Wind Advisories will also possible on Mon into Mon
evening especially for the Central Coast, foothills, mtns and
deserts.
Skies will be partly to mostly cloudy across much of the region on
Mon. Temps will turn much cooler and several degrees below normal
with highs in the warmest vlys and inland coastal areas only in the
mid 50s to near 60.
For Mon night and Tue, the upper trof will slowly move E with
clearing across the forecast area by late Mon night. The gusty NW
winds will diminish into Tue. A very cold and dry air mass will help
to contribute to widespread frost and hard freeze conditions Mon
night into early Tue in wind-sheltered areas. Low temps in these
areas S and W of the mtns will likely drop into the mid 20s to
lower 30s, except lower 20s in the SLO interior vlys. Hard
Freeze/Freeze Warnings and Frost Advisories will likely be needed
in many areas Mon night into Tue morning. Temps on Tue will
continue to be several degrees below normal in all areas.
.LONG TERM (WED-SAT)...17/302 PM.
The EC and GFS do not show much consistency in the finer details
during the extended period except they both keep a broad long wave
upper trof pattern over the western U.S. Another shortwave upper
trof is forecast to move over CA (EC) or off the Coast (GFS) on Wed
into Wed night. Broad upper troffiness will then persist to some
degree over the region Thu thru Sat. The timing, speed and position
of shortwave energy dropping into the long wave trof is off a bit
between the models. The EC forecasts one of the shortwaves to bring
a chance or rain and mtn snow to the forecast area late Thu thru
Fri evening. The GFS keeps most of the shortwave energy to the N
and E of southwestern CA, with no pcpn expected over the region.
Have trended toward the GFS with the drier solution. However, have
kept ghost POPs in the fcst for late in the week with partly cloudy
skies. Otherwise, mostly clear skies should prevail over the
forecast area thru Wed, with partly cloudy skies Thu thru Sat. Very
cold overnight lows are expected again Tue night. Frost Advisories
and Freeze Warnings will likely be needed in the coldest wind-
sheltered parts of the coast and vlys, with the Ojai Valley expected
to drop into the mid 20s again Tue night. Daytime highs will be
near seasonal norms just about everywhere Wed thru Sat.
&&
.AVIATION...18/0607Z.
At 0550Z at KLAX...There was no marine layer nor was there a sfc
based inversion.
Expect low clouds to develop in coastal areas overnight, with the
possible exception of the south coast of SBA County. Clouds
should spread into the valley toward morning. Conds will likely
start out in the LIFR to VLIFR category, then should improve to
IFR during Sun morning. Slow clearing is expected near the
immediate coast Sun. There will be strong and gusty sw winds
across the Antelope Valley Sun afternoon.
KLAX...Low confidence in the 06Z TAF due to uncertainty in the
timing of low clouds and fog. Low clouds may not arrive until
as late as 12Z or 12Z. IFR conds could last until 21Z. There is a
30 percent chc of east winds greater than 7 knots between 11Z-17Z.
KBUR...Low confidence in the 06Z TAF due to uncertainty in the
timing of low clouds and fog. There is a 30-40% chc that the low
clouds will not arrive. There is a 30 percent chc that the low
clouds will not arrive until 15Z. There is a 30 percent chc of
MVFR cigs lasting through 20Z.
&&
.MARINE...17/840 PM.
For the Outer Waters... Small Craft Advisory (SCA) level
northwest winds will develop on Sunday and continue through
Tuesday. There is a 70 percent chance of Gale force winds Sunday
evening through late Monday night.
For nearshore waters north of Point Sal, SCA level northwest
winds will develop on Sunday morning, with a 60 percent chance of
Gale force wind gusts Sunday evening through Monday evening.
For the waters south of Point Conception, SCA level west
to northwest winds will develop by Sunday night and diminish early
Tuesday with the strongest winds across western sections. There is
a 30 percent chance of gale force gusts over the western portion
of these waters late Sunday night through Monday evening.
Patchy dense fog is expected to develop over the waters late
tonight, with visibilities dropping locally to one quarter mile at
times through Sunday morning.
&&
.LOX WATCHES/WARNINGS/ADVISORIES...
CA...Winter Weather Advisory in effect from 6 PM Sunday to 3 AM
PST Tuesday for zones 53-54. (See LAXWSWLOX).
PZ...Small Craft Advisory in effect from 9 AM Sunday to 3 AM PST
Tuesday for zones 645-676. (See LAXMWWLOX).
Small Craft Advisory in effect from 9 PM Sunday to 3 AM PST
Tuesday for zones 650-655. (See LAXMWWLOX).
Small Craft Advisory in effect from 3 AM Sunday to 3 AM PST
Tuesday for zones 670-673. (See LAXMWWLOX).
Gale Watch in effect from Sunday evening through late Monday
night for zones 670-673-676. (See LAXMWWLOX).
&&
.HAZARD POTENTIAL OUTLOOK (TUE-SAT).
Gusty and potentially damaging northwest winds are possible
Monday night through early Tuesday. There is also a chance of snow
and gusty winds Monday night combining to create hazardous wintry
driving conditions on the N mountain slopes including I-5 in
northwestern L.A. County and over the Grapevine.
It will be very cold during the late night through mid morning
hours Monday night through Wednesday, especially where the winds
diminish. Frost or freezing temperatures will likely occur in the
valleys and coastal areas of Santa Barbara and San Luis Obispo
Counties, and possibly across interior coastal sections and some
of the sheltered vlys of Ventura and Los Angeles Counties.
&&
PUBLIC...Sirard
AVIATION...DB
MARINE...Smith
SYNOPSIS...DB/B
weather.gov/losangelesThe office that day
Everything else NWS Los Angeles, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 17, 8:41 PM PST | Gale Watch | LOX | 6 hr | |
| Feb 18, 4:30 AM PST | Freeze Watch | LOX | 11 hr | |
| Feb 18, 4:30 AM PST | Hard Freeze Watch | LOX | Santa Barbara | 11 hr |
| Feb 18, 4:30 AM PST | Wind Advisory | LOX | 41 hr | |
| Feb 18, 1:44 PM PST | High Surf Advisory | LOX | 48 hr | |
| Feb 18, 3:05 PM PST | Freeze Warning | LOX | 42 hr | |
| Feb 18, 3:05 PM PST | Freeze Warning | LOX | Los Angeles | 66 hr |
| Feb 18, 3:05 PM PST | Hard Freeze Warning | LOX | Santa Barbara | 42 hr |
| Feb 18, 3:05 PM PST | Hard Freeze Warning | LOX | Santa Barbara | 66 hr |
Nearby
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.