Alert archive / California / Small Craft Advisories in 2019
Small Craft Advisory 8, NWS Eureka, CA
NWS Eureka, CA issued this small craft advisory at Jan 15, 2019, 1:59 PM PST. It took effect at Jan 16, 2019, 9:00 AM PST. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Jan 15, 2019, 1:59 PM PST (21:59 UTC)
- In effect from
- Jan 16, 2019, 9:00 AM PST
- Expired
- Jan 16, 2019, 3:00 PM PST
- In force
- 6 hr
- Issued by
- NWS Eureka, CA
The text
As transmitted.
121 WHUS76 KEKA 152159 MWWEKA Urgent - Marine Weather Message National Weather Service Eureka CA 159 PM PST Tue Jan 15 2019 PZZ455-160600- /O.EXB.KEKA.GL.W.0004.190116T1700Z-190117T0500Z/ /O.UPG.KEKA.SE.A.0002.190117T0200Z-190118T0800Z/ Cape Mendocino to Pt Arena out 10 nm- 159 PM PST Tue Jan 15 2019 ...GALE WARNING IN EFFECT FROM 9 AM TO 9 PM PST WEDNESDAY... The National Weather Service in Eureka has issued a Gale Warning, which is in effect from 9 AM to 9 PM PST Wednesday. The Hazardous Seas Watch is no longer in effect. * WINDS...S 30 to 40 kt. * WAVES/SEAS...Steep southerly waves will build to 13 to 15 ft Wednesday night in response to strong southerly winds beyond about 10NM. Large westerly swell is expected to rapidly build to 20 to 25 ft on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. 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. && $$ PZZ470-160600- /O.CON.KEKA.SC.Y.0007.000000T0000Z-190116T1700Z/ /O.EXT.KEKA.GL.W.0004.190116T1700Z-190117T0500Z/ Pt St George to Cape Mendocino 10 to 60 nm- 159 PM PST Tue Jan 15 2019 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST WEDNESDAY... ...GALE WARNING NOW IN EFFECT FROM 9 AM TO 9 PM PST WEDNESDAY... * WAVES...Combined seas 9 to 12 feet, comprised mainly of westerly swell at 16 seconds this monring. Steep SE waves will build today and eventually reach 10 ft by this evening. Steep seas are expected to build to 15 to 18 ft Wed afternoon and evening in response to strong south winds. * WINDS...S 30 to 40 kt on Wednesday. Isolated gusts around 50 kt possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners, especially those operating smaller vessels should avoid navigating in these conditions. && $$ PZZ475-160600- /O.CON.KEKA.SC.Y.0006.000000T0000Z-190116T1700Z/ /O.EXT.KEKA.GL.W.0004.190116T1700Z-190117T0500Z/ Cape Mendocino to Pt Arena 10 to 60 nm- 159 PM PST Tue Jan 15 2019 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST WEDNESDAY... ...GALE WARNING NOW IN EFFECT FROM 9 AM TO 9 PM PST WEDNESDAY... * WINDS...S 30 to 40 kt Wednesday. Isolated gusts near 50 kt possible around Cape Mendocino . * WAVES...Combined seas from 12 ft due to a combination of a long period westerly swell and steep southeasterly wind waves. Seas are expected to build to 15 to 18 ft Wed afternoon and evening in response to strong south winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. 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 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. && $$ PZZ450-160600- /O.NEW.KEKA.SC.Y.0008.190116T1700Z-190117T0500Z/ /O.EXT.KEKA.SE.A.0002.190117T0500Z-190118T0800Z/ Pt St George to Cape Mendocino out 10 nm- 159 PM PST Tue Jan 15 2019 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM TO 9 PM PST WEDNESDAY... ...HAZARDOUS SEAS WATCH NOW IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY EVENING... The National Weather Service in Eureka has issued a Small Craft Advisory, which is in effect from 9 AM to 9 PM PST Wednesday. * WINDS...possible gusts to 40 kt on Wed. * Waves/seas...Large westerly swell is expected to build to 20 to 25 ft on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Hazardous Seas Watch is issued when the risk of hazardous seas has significantly increased, but the specific timing and/or location is still uncertain. It is intended to provide additional lead time for mariners who may wish to consider altering their plans. A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners, especially those operating smaller vessels should avoid navigating in these conditions. && $$
4 follow-up statements
915 WHUS76 KEKA 160443 MWWEKA Urgent - Marine Weather Message National Weather Service Eureka CA 843 PM PST Tue Jan 15 2019 PZZ470-161245- /O.CON.KEKA.SC.Y.0007.000000T0000Z-190116T1700Z/ /O.CON.KEKA.GL.W.0004.190116T1700Z-190117T0500Z/ Pt St George to Cape Mendocino 10 to 60 nm- 843 PM PST Tue Jan 15 2019 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST WEDNESDAY... ...GALE WARNING REMAINS IN EFFECT FROM 9 AM TO 9 PM PST WEDNESDAY... * WAVES...Steep SE waves at 10 ft. Steep seas are expected to continue to build to 15 to 18 ft Wed afternoon and evening in response to strong south winds. * WINDS...S 30 to 40 kt on Wednesday. Isolated gusts around 50 kt possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. 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 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. && $$ PZZ475-161245- /O.CON.KEKA.SC.Y.0006.000000T0000Z-190116T1700Z/ /O.CON.KEKA.GL.W.0004.190116T1700Z-190117T0500Z/ Cape Mendocino to Pt Arena 10 to 60 nm- 843 PM PST Tue Jan 15 2019 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST WEDNESDAY... ...GALE WARNING REMAINS IN EFFECT FROM 9 AM TO 9 PM PST WEDNESDAY... * WINDS...S 30 to 40 kt Wednesday. Isolated gusts near 50 kt possible around Cape Mendocino . * WAVES...Combined seas from 12 ft due to a combination of a long period westerly swell and steep southeasterly wind waves. Seas are expected to build to 15 to 18 ft Wed afternoon and evening in response to strong south winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners, especially those operating smaller vessels should avoid navigating in these conditions. && $$ PZZ455-161245- /O.CON.KEKA.GL.W.0004.190116T1700Z-190117T0500Z/ Cape Mendocino to Pt Arena out 10 nm- 843 PM PST Tue Jan 15 2019 ...GALE WARNING REMAINS IN EFFECT FROM 9 AM TO 9 PM PST WEDNESDAY... * WINDS...S 30 to 40 kt. * WAVES/SEAS...Steep southerly waves will build to 13 to 15 ft Wednesday night in response to strong southerly winds beyond about 10NM. Large westerly swell is expected to rapidly build to 20 to 25 ft on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. 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. && $$ PZZ450-161245- /O.CON.KEKA.SC.Y.0008.190116T1700Z-190117T0500Z/ /O.CON.KEKA.SE.A.0002.190117T0500Z-190118T0800Z/ Pt St George to Cape Mendocino out 10 nm- 843 PM PST Tue Jan 15 2019 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM TO 9 PM PST WEDNESDAY... ...HAZARDOUS SEAS WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY EVENING... * WINDS...possible gusts to 40 kt on Wed. * Waves/seas...Large westerly swell is expected to build to 20 to 25 ft on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Hazardous Seas Watch is issued when the risk of hazardous seas has significantly increased, but the specific timing and/or location is still uncertain. It is intended to provide additional lead time for mariners who may wish to consider altering their plans. A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners, especially those operating smaller vessels should avoid navigating in these conditions. && $$
553 WHUS76 KEKA 161107 MWWEKA Urgent - Marine Weather Message National Weather Service Eureka CA 307 AM PST Wed Jan 16 2019 PZZ450-161915- /O.CON.KEKA.SC.Y.0008.190116T1700Z-190117T0500Z/ /O.UPG.KEKA.SE.A.0002.190117T0500Z-190118T0800Z/ /O.NEW.KEKA.SE.W.0005.190117T0500Z-190118T0800Z/ Pt St George to Cape Mendocino out 10 nm- 307 AM PST Wed Jan 16 2019 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM PST THIS EVENING... ...HAZARDOUS SEAS WARNING IN EFFECT FROM 9 PM THIS EVENING TO MIDNIGHT PST THURSDAY NIGHT... The National Weather Service in Eureka has issued a Hazardous Seas Warning, which is in effect from 9 PM this evening to midnight PST Thursday night. The Hazardous Seas Watch is no longer in effect. * WINDS...S winds increasing to 20 to 30 kt Wed morning, with possible gusts to 40 kt through Wed evening. * Waves/seas...Large westerly swell is expected to build to 25 to 30 ft on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Hazardous Seas Warning means hazardous sea conditions are imminent or occurring. Recreational boaters should remain in port, or take shelter until waves subside. Commercial vessels should prepare for rough seas and consider remaining in port or taking shelter in port until hazardous seas subside. 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. && $$ PZZ470-161915- /O.CON.KEKA.SC.Y.0007.000000T0000Z-190116T1700Z/ /O.CON.KEKA.GL.W.0004.190116T1700Z-190117T0500Z/ Pt St George to Cape Mendocino 10 to 60 nm- 307 AM PST Wed Jan 16 2019 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING... ...GALE WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM PST THIS EVENING... * WAVES...Steep SE waves at 10 ft. Steep seas will continue to build to 15 to 17 ft Wed afternoon and evening in response to strong south winds. * WINDS...S 30 to 40 kt on Wed. Isolated gusts around 50 kt possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners, especially those operating smaller vessels should avoid navigating in these conditions. && $$ PZZ475-161915- /O.CON.KEKA.SC.Y.0006.000000T0000Z-190116T1700Z/ /O.CON.KEKA.GL.W.0004.190116T1700Z-190117T0500Z/ Cape Mendocino to Pt Arena 10 to 60 nm- 307 AM PST Wed Jan 16 2019 ...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...S 30 to 40 kt Wednesday. Isolated gusts near 50 kt possible around Cape Mendocino . * WAVES...Combined seas from 12 ft due to a combination of a long period westerly swell and steep southeasterly wind waves. Seas are expected to build to 15 to 17 ft Wed afternoon and evening in response to strong south winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. 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 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. && $$ PZZ455-161915- /O.CON.KEKA.GL.W.0004.190116T1700Z-190117T0500Z/ Cape Mendocino to Pt Arena out 10 nm- 307 AM PST Wed Jan 16 2019 ...GALE WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM PST THIS EVENING... * WINDS...S 30 to 40 kt. * WAVES/SEAS...Steep southerly waves will build to 13 to 15 ft Wednesday night in response to strong southerly winds. Large westerly swell is expected to rapidly build to 25 to 30 ft on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$
481 WHUS76 KEKA 161725 MWWEKA Urgent - Marine Weather Message National Weather Service Eureka CA 925 AM PST Wed Jan 16 2019 PZZ470-170130- /O.EXP.KEKA.SC.Y.0007.000000T0000Z-190116T1700Z/ /O.CON.KEKA.GL.W.0004.000000T0000Z-190117T0500Z/ /O.EXB.KEKA.SE.W.0005.190117T0500Z-190118T1300Z/ Pt St George to Cape Mendocino 10 to 60 nm- 925 AM PST Wed Jan 16 2019 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM THIS EVENING... ...HAZARDOUS SEAS WARNING IN EFFECT FROM 9 PM THIS EVENING TO 5 AM FRIDAY... * WINDS...S 30 to 40 kt through this evening. Occasional gusts to 50 kt possible. * WAVES...Steep S waves building to 15 to 18 ft at 11 seconds by this afternoon and evening in response to strong S winds. Very large W swell building to 28 to 32 ft on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. 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 Hazardous Seas Warning means hazardous sea conditions are imminent or occurring. Recreational boaters should remain in port, or take shelter until waves subside. Commercial vessels should prepare for rough seas and consider remaining in port or taking shelter in port until hazardous seas subside. $$ PZZ475-170130- /O.EXP.KEKA.SC.Y.0006.000000T0000Z-190116T1700Z/ /O.CON.KEKA.GL.W.0004.000000T0000Z-190117T0500Z/ /O.EXB.KEKA.SE.W.0005.190117T0500Z-190118T1300Z/ Cape Mendocino to Pt Arena 10 to 60 nm- 925 AM PST Wed Jan 16 2019 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM THIS EVENING... ...HAZARDOUS SEAS WARNING IN EFFECT FROM 9 PM THIS EVENING TO 5 AM FRIDAY... * WINDS...S 25 to 35 kt with gusts to 45 kt through this evening. Occasional gusts to 50 kt possible. * WAVES...Steep S waves building to 13 to 17 ft at 11 seconds by this afternoon and evening in response to strong S winds. Very large W swell building to 28 to 32 ft on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. A Hazardous Seas Warning means hazardous sea conditions are imminent or occurring. Recreational boaters should remain in port, or take shelter until waves subside. Commercial vessels should prepare for rough seas and consider remaining in port or taking shelter in port until hazardous seas subside. $$ PZZ455-170130- /O.CON.KEKA.GL.W.0004.000000T0000Z-190117T0500Z/ /O.EXB.KEKA.SE.W.0005.190117T0500Z-190118T1300Z/ Cape Mendocino to Pt Arena out 10 nm- 925 AM PST Wed Jan 16 2019 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM THIS EVENING... ...HAZARDOUS SEAS WARNING IN EFFECT FROM 9 PM THIS EVENING TO 5 AM FRIDAY... * WINDS...SE to S 25 to 35 kt with gusts to 45 kt through this evening. Occasional gusts to 50 kt possible around Cape Mendocino. * WAVES...Steep S waves building to 13 to 15 ft at 11 seconds by this afternoon and evening in response to strong S winds. Very large W swell building to 24 to 28 ft on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. 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 Hazardous Seas Warning means hazardous sea conditions are imminent or occurring. Recreational boaters should remain in port, or take shelter until waves subside. Commercial vessels should prepare for rough seas and consider remaining in port or taking shelter in port until hazardous seas subside. $$ PZZ450-170130- /O.CON.KEKA.SC.Y.0008.000000T0000Z-190117T0500Z/ /O.EXT.KEKA.SE.W.0005.190117T0500Z-190118T1300Z/ Pt St George to Cape Mendocino out 10 nm- 925 AM PST Wed Jan 16 2019 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM THIS EVENING... ...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM 9 PM THIS EVENING TO 5 AM FRIDAY... * WINDS...SE to S 20 to 30 kt with occasional gusts to 35 kt through this evening. Occasional gusts to 45 kt possible around Cape Mendocino. * WAVES...Steep S waves building to 11 to 14 ft at 11 seconds by tonight in response to strong S winds. Very large W swell building to 23 to 27 ft on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners, especially those operating smaller vessels should avoid navigating in these conditions. A Hazardous Seas Warning means hazardous sea conditions are imminent or occurring. Recreational boaters should remain in port, or take shelter until waves subside. Commercial vessels should prepare for rough seas and consider remaining in port or taking shelter in port until hazardous seas subside. $$
898 WHUS76 KEKA 162232 MWWEKA Urgent - Marine Weather Message National Weather Service Eureka CA 232 PM PST Wed Jan 16 2019 PZZ450-170645- /O.EXT.KEKA.SC.Y.0008.000000T0000Z-190116T2300Z/ /O.EXB.KEKA.GL.W.0004.190116T2300Z-190117T1400Z/ /O.EXT.KEKA.SE.W.0005.190117T1400Z-190118T1300Z/ Pt St George to Cape Mendocino out 10 nm- 232 PM PST Wed Jan 16 2019 ...GALE WARNING IN EFFECT UNTIL 6 AM THURSDAY... ...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM 6 AM THURSDAY TO 5 AM FRIDAY... * WINDS...S 25 to 30 kt with gusts to 35 kt tonight. Occasional gusts to 45 kt possible around Cape Mendocino. * WAVES...Steep S waves 11 to 14 ft at 11 seconds tonight. Very large W swell building to 22 to 26 ft on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. 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 Hazardous Seas Warning means hazardous sea conditions are imminent or occurring. Recreational boaters should remain in port, or take shelter until waves subside. Commercial vessels should prepare for rough seas and consider remaining in port or taking shelter in port until hazardous seas subside. $$ PZZ470-170645- /O.EXT.KEKA.GL.W.0004.000000T0000Z-190117T1700Z/ /O.EXT.KEKA.SE.W.0005.190117T1700Z-190118T1300Z/ Pt St George to Cape Mendocino 10 to 60 nm- 232 PM PST Wed Jan 16 2019 ...GALE WARNING NOW IN EFFECT UNTIL 9 AM THURSDAY... ...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM 9 AM THURSDAY TO 5 AM FRIDAY... * WINDS...S 30 to 40 kt tonight. Occasional gusts to 50 kt possible. * WAVES...Steep S waves 15 to 18 ft at 11 seconds. Very large W swell building to 28 to 32 ft on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. A Hazardous Seas Warning means hazardous sea conditions are imminent or occurring. Recreational boaters should remain in port, or take shelter until waves subside. Commercial vessels should prepare for rough seas and consider remaining in port or taking shelter in port until hazardous seas subside. $$ PZZ455-475-170645- /O.CON.KEKA.GL.W.0004.000000T0000Z-190117T0500Z/ /O.CON.KEKA.SE.W.0005.190117T0500Z-190118T1300Z/ Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 232 PM PST Wed Jan 16 2019 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM THIS EVENING... ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 5 AM FRIDAY... * WINDS...SE to S 25 to 35 kt with gusts to 45 kt through this evening. Occasional gusts to 50 kt possible around Cape Mendocino. * WAVES...Steep S waves 13 to 15 ft at 11 seconds. Very large W swell building to 26 to 30 ft on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. 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 Hazardous Seas Warning means hazardous sea conditions are imminent or occurring. Recreational boaters should remain in port, or take shelter until waves subside. Commercial vessels should prepare for rough seas and consider remaining in port or taking shelter in port until hazardous seas subside. $$
What forecasters said that day
The local office's own words before this small craft advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Eureka, CA wrote its last area forecast discussion before this small craft advisory went out at Jan 15, 5:27 AM PST, 8 hours 32 minutes earlier.
Area forecast discussion, Jan 15, 5:27 AM PST, 8 hours 32 minutes before
AREA FORECAST DISCUSSION
National Weather Service Eureka CA
527 AM PST Tue Jan 15 2019
.SYNOPSIS...Rain showers and breezy southeast winds will be found
across northwest California through Wednesday morning as a wave of
low pressure passes by. A strong storm will bring heavier rain and
strong winds Wednesday afternoon through Thursday, along with high
surf for the coastal waters. Chances for rain will continue into
the weekend, followed high pressure returning with drier weather
next week.
&&
.DISCUSSION...Clouds have overspread all of northwest California
early this morning and showers have finally expanded to most
areas near and south of Cape Mendocino. A complex but relatively
broad and weak area of low pressure off the California coast will
continue to lift northeastward, with more in the way of shower
activity lifting across our area through today and tonight. Little
has changed with the expected weather conditions through
Wednesday morning, though rainfall amounts have trended lighter by
a tenth of an inch or two, with a quarter of an inch to three
quarters of an inch expected across the bulk of our area. 1-2
inches and locally higher amounts will fall over south and
southeast-facing mountainous terrain, particularly around the
Trinity Alps and Yolla Bollys. The coastal plain will see the
lightest amounts as southeast flow downslopes from the higher
terrain, and keeps rain relatively light. Snow levels are starting
out below 4,000 feet over portions of Trinity county, but will
rise closer to 5,000 feet by Wednesday morning. While some of the
higher elevation passes along Highway 36 may see some snow showers
initially before snow levels rise, amounts will be minor. The
only highway pass significantly impacted will be Scott Mountain
Summit on highway 3, where over a foot of snow may fall before the
transition to rain on Wednesday. Breezy southeast winds will pick
up today and tonight, but will not become too strong until
Wednesday.
The focus will continue to be on a much stronger storm system
tracking eastward across the Pacific. This storm will peak in
intensity near 970 mb Wednesday evening, but the center will stay
well offshore, while sending a strong cold front across our area
Wednesday evening. Winds aloft, only 1500 to 2500 ft above sea
level, will increase to 50 to 60 kt from the south ahead of this
front. An inversion will likely keep the full force of these
winds from mixing down to the surface along the coast, though
exposed headlands may see gusts approach 45 mph. Have issued a
wind advisory for many of the higher elevation hills and ridges
inland, above 2500 ft for northeast Mendocino and Trinity, and
above 1500 ft elsewhere. Considered a High Wind Watch...however,
our criteria is 70 mph gusts for the high elevations, and do not
think those speeds will be achieved outside of the exposed
mountain/ridgetop locations. Later shifts should consider adding a
wind advisory for the coast, particularly Del Norte County, where
brief gusts over 45 mph may occur for a few hours ahead of the
front.
Rainfall has trended a bit heavier with this system, by perhaps
0.20-0.50 inches from previous model runs, with generally 2 to 5
inches a good bet across northwest California from Wednesday
afternoon through Thursday night. Locally heavier amounts are
possible over south-facing high terrain. The heaviest rain will
occur along the front Wednesday evening, and we are still
concerned that rates may approach the debris flow thresholds for
the Mendocino Complex burn scar of 0.80 inches in an hour. Some
minor urban and small stream flooding is possible elsewhere, but
otherwise flash flood criteria for the rest of the area is greater
than an inch per hour, and we do not expect rates that high.
Significant rises will occur on area main-stem rivers by Thursday
morning, to the highest levels of this season so far, but flooding
is not expected. The only site expected to exceed 'action' or
'monitor' stage is the Eel River at Fernbridge.
In the wake of the front, showers will persist through Thursday
night while the upper-level trough swings through. This trough
will bring increasingly cold air aloft, with snow levels dropping
from 6000 feet on Wednesday to 4000 feet Thursday afternoon.
Recent model runs have increased the potency of this cold air and
instability, and shower activity late Wednesday night through
Thursday will carry a punch at times. Some thunderstorms and
brief small hail mixing in with heavier downpours will be possible
along the coastal plain. Snow will continue to pile up at Scott
Mountain summit, but accumulating snow will remain above most
other highway passes. The exception may be some of the higher
spots on highway 36 by Thursday afternoon. We may need a winter
weather advisory for that area, but will consider that if
confidence increases later today or tomorrow.
A warm front may clip northwest CA with some light rain on Friday
into Saturday, so we have kept at least the chance of showers in
after our strong mid-week system passes by. Another cold front
will pass by with a period of moderate rain around Sunday, but
then much of next week is looking drier and milder as high
pressure rebuilds. /AAD
&&
.AVIATION...Light rain will develop at ACV and CEC this morning as
rain spreads northward along the Redwood Coast. Ceilings are
expected to drop to around 5000 ft as the rain moves over each
terminal, with VFR conditions persisting through the day. Low level
wind shear will also accompany the arrival of precipitation at ACV
as SE winds increase above the surface. Will also have to watch the
potential for LLWS to move into CEC later in the morning although
the threat looks a little more marginal farther north. Meanwhile,
persistent light rain will keep ceilings fluctuating between VFR and
MVFR at UKI, with MVFR prevailing by late morning. LLWS should come
to an end across all TAF sites by late morning. /CB
&&
.MARINE...Fresh southeast breezes over the southern outer waters
will spread into the northern outer waters later this morning, with
short period seas gradually building to 10-12 ft by this evening in
response. These conditions will then continue into Wednesday
morning, necessitating Small Craft Advisories for the outer waters.
Meanwhile, a decaying mid period westerly swell will continue to
wane through tonight and contribute to chaotic combined seas
throughout the coastal waters. A Gale Watch remains in effect
Wednesday and Wednesday night as winds rapidly increase ahead of a
powerful sub 970 mb low passing well northwest of the area. There is
a high likelihood of gales developing across the outer waters on
Wednesday, however we will give the models another run to account
for any track/timing differences before making the decision to
upgrade to a warning. There is also a possibility that winds will
gust to storm force during the peak of the event on Wednesday
afternoon. In addition to the winds and steep short period seas, a
giant westerly swell is still poised to propagate into the coastal
waters Wednesday night into Thursday with wave heights topping out
around 25 feet. This will add another element to the already
hazardous conditions, likely creating significant concerns for local
crab fishing interests. Conditions look to improve at least briefly
for Friday as high pressure builds over the west coast. /CB
&&
.BEACH HAZARDS/TIDES...A developing Pacific storm system will
generate a huge westerly swell that will impact NW California
beaches on Thursday. This swell combined with brisk SW winds may
produce a 1 to 1.5 foot storm surge on top of high tide, which could
result in localized coastal flooding as well as very large surf.
&&
.EKA WATCHES/WARNINGS/ADVISORIES...
CA...Wind Advisory from 1 PM to 10 PM PST Wednesday for CAZ102-
105>108-110>113.
NORTHWEST CALIFORNIA COASTAL WATERS...Gale Watch from Wednesday
morning through late Wednesday night for PZZ470-475.
Small Craft Advisory from 9 AM this morning to 10 AM PST
Wednesday for PZZ470.
Small Craft Advisory until 10 AM PST Wednesday for PZZ475.
&&
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For forecast zone information
see the forecast zone map online:
http://www.weather.gov/eureka/zonemap.pngHazardous weather outlook, Jan 15, 9:26 AM PST, 4 hours 33 minutes before
Hazardous Weather Outlook National Weather Service Eureka CA 926 AM PST Tue Jan 15 2019 CAZ106>108-110>113-161730- Southern Humboldt Interior-Northern Trinity-Southern Trinity- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Southwestern Mendocino Interior-Southeastern Mendocino Interior- 926 AM PST Tue Jan 15 2019 ...WIND ADVISORY IN EFFECT FROM 1 PM TO 10 PM PST WEDNESDAY... ...FLOOD WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON... This hazardous weather outlook is for northwest California. .DAY ONE...Today and tonight. No hazardous weather is expected through tonight. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. A Wind Advisory is currently in effect. A Flood Watch is currently in effect. A Wind Advisory is in effect for exposed high terrain of northeast Mendocino and Trinity county above 2,500 feet, and for the remainder of inland northwest California above 1,500 feet. Snow levels around 4,000 feet over Trinity County with showery precipitation may result in locally heavy snowfall over Scott Mountain Summit on Highway 3 today and tonight. A large, powerful storm system will bring strong winds and heavy rain Wednesday afternoon into Wednesday night. Snow levels will fall to around 4,000 feet on Thursday with more snowfall for Scott Mountain summit, and perhaps some of the higher passes on Highway 36. Heavy rain Wednesday night will result in sharp rises on main stem rivers as well as smaller streams and creeks through Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. For further details please refer to NOAA Weather Radio or weather.gov/eureka. CAZ101-103-161730- Coastal Del Norte-Northern Humboldt Coast- 926 AM PST Tue Jan 15 2019 This hazardous weather outlook is for northwest California. .DAY ONE...Today and tonight. No hazardous weather is expected through tonight. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. A large, powerful storm system will bring gusty winds and heavy rain Wednesday afternoon into Wednesday night. High surf will likely result in hazardous beach conditions and possibly minor coastal flooding by Thursday. A slight chance of thunderstorms will be possible from Wednesday evening through Thursday afternoon. Small hail will also be possible from Wednesday night through Thursday afternoon, with at least heavy downpours likely with stronger showers. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. For further details please refer to NOAA Weather Radio or weather.gov/eureka. CAZ102-105-161730- Del Norte Interior-Northern Humboldt Interior- 926 AM PST Tue Jan 15 2019 ...WIND ADVISORY IN EFFECT FROM 1 PM TO 10 PM PST WEDNESDAY... This hazardous weather outlook is for northwest California. .DAY ONE...Today and tonight. No hazardous weather is expected. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. A Wind Advisory is currently in effect. A Wind Advisory is in effect for exposed high terrain of northeast Mendocino and Trinity county above 2,500 feet, and for the remainder of inland northwest California above 1,500 feet. Snow levels around 4,000 feet over Trinity County with showery precipitation may result in locally heavy snowfall over Scott Mountain Summit on Highway 3 today and tonight. A large, powerful storm system will bring strong winds and heavy rain Wednesday afternoon into Wednesday night. Snow levels will fall to around 4,000 feet on Thursday with more snowfall for Scott Mountain summit, and perhaps some of the higher passes on Highway 36. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. For further details please refer to NOAA Weather Radio or weather.gov/eureka. CAZ104-109-161730- Southwestern Humboldt-Mendocino Coast- 926 AM PST Tue Jan 15 2019 ...FLOOD WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON... This hazardous weather outlook is for northwest California. .DAY ONE...Today and tonight. No hazardous weather is expected. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. A Flood Watch is currently in effect. A large, powerful storm system will bring gusty winds and heavy rain Wednesday afternoon into Wednesday night. High surf will likely result in hazardous beach conditions and possibly minor coastal flooding by Thursday. A slight chance of thunderstorms will be possible from Wednesday evening through Thursday afternoon. Small hail will also be possible from Wednesday night through Thursday afternoon, with at least heavy downpours likely with stronger showers. Heavy rain Wednesday night will result in sharp rises on main stem rivers as well as smaller streams and creeks through Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. For further details please refer to NOAA Weather Radio or weather.gov/eureka.
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 15, 3:29 AM PST | Small Craft Advisory | EKA | 30 hr | |
| Jan 15, 4:08 AM PST | Wind Advisory | EKA | Del Norte, Humboldt, Mendocino, Trinity | 52 hr |
| Jan 15, 9:15 AM PST | Flood Watch | EKA | Humboldt, Mendocino, Trinity | 55 hr |
| Jan 15, 9:42 AM PST | Gale Warning | EKA | 50 hr | |
| Jan 15, 9:42 AM PST | Hazardous Seas Watch | EKA | 17 hr | |
| Jan 15, 2:23 PM PST | High Surf Warning | EKA | Del Norte, Humboldt, Mendocino | 54 hr |
Nearby
Small Craft Advisories in California, 2019Every small craft advisory in 2019
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.