Alert archive / California / Gale Warnings in 2019
Gale Warning 5, NWS Eureka, CA
NWS Eureka, CA issued this gale warning at Jan 17, 2019, 2:51 PM PST. It took effect at Jan 18, 2019, 9:15 AM PST. It was in force for 17 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
- Jan 17, 2019, 2:51 PM PST (22:51 UTC)
- In effect from
- Jan 18, 2019, 9:15 AM PST
- Expired
- Jan 19, 2019, 2:02 AM PST
- In force
- 17 hr
- Issued by
- NWS Eureka, CA
The text
As transmitted.
749 WHUS76 KEKA 172251 MWWEKA Urgent - Marine Weather Message National Weather Service Eureka CA 251 PM PST Thu Jan 17 2019 PZZ470-180700- /O.CON.KEKA.SE.W.0005.000000T0000Z-190118T1300Z/ /O.NEW.KEKA.GL.W.0005.190118T1700Z-190119T0800Z/ Pt St George to Cape Mendocino 10 to 60 nm- 251 PM PST Thu Jan 17 2019 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 5 AM FRIDAY... ...GALE WARNING IN EFFECT FROM 9 AM FRIDAY TO MIDNIGHT FRIDAY NIGHT... * WINDS...S 15 to 20 kt tonight, increasing to 25 to 35 kt with gusts to 45 kt on Friday. * WAVES...Steep S waves 6 to 8 ft at 8 seconds, building to 11 to 13 ft at 11 seconds on Friday. Large W swell 22 to 24 feet at 16 seconds tonight, subsiding to 16 to 18 ft at 14 seconds on Friday. 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 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. $$ PZZ450-455-475-180700- /O.CON.KEKA.SE.W.0005.000000T0000Z-190118T1300Z/ Pt St George to Cape Mendocino out 10 nm- Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 251 PM PST Thu Jan 17 2019 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 5 AM FRIDAY... * WINDS...S 10 to 20 kt, increasing to 20 to 30 kt on Friday. * WAVES...Steep S to SW waves 4 to 6 ft at 7 seconds. Large W swell 21 to 23 feet at 16 seconds tonight, subsiding to 17 to 19 ft at 14 seconds on Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Hazardous Seas Warning means hazardous sea conditions are imminent or occurring. Recreational boaters should remain in port, or take shelter until waves subside. Commercial vessels should prepare for rough seas and consider remaining in port or taking shelter in port until hazardous seas subside. $$
7 follow-up statements
117 WHUS76 KEKA 180434 MWWEKA Urgent - Marine Weather Message National Weather Service Eureka CA 834 PM PST Thu Jan 17 2019 PZZ470-181245- /O.CON.KEKA.SE.W.0005.000000T0000Z-190118T1300Z/ /O.CON.KEKA.GL.W.0005.190118T1700Z-190119T0800Z/ Pt St George to Cape Mendocino 10 to 60 nm- 834 PM PST Thu Jan 17 2019 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 5 AM PST FRIDAY... ...GALE WARNING REMAINS IN EFFECT FROM 9 AM FRIDAY TO MIDNIGHT PST FRIDAY NIGHT... * WINDS...S 15 to 20 kt tonight, increasing to 25 to 35 kt with gusts to 45 kt on Friday. * WAVES...Steep S waves 6 to 8 ft at 8 seconds, building to 11 to 13 ft at 11 seconds on Friday. Large W swell 18 feet at 15 seconds tonight, subsiding to 10 to 12 ft at 14 seconds on Friday. 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 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. $$ PZZ450-455-475-181245- /O.CON.KEKA.SE.W.0005.000000T0000Z-190118T1300Z/ Pt St George to Cape Mendocino out 10 nm- Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 834 PM PST Thu Jan 17 2019 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 5 AM PST FRIDAY... * WINDS...S 10 to 20 kt, increasing to 20 to 30 kt on Friday. * WAVES...Steep S to SW waves 4 to 6 ft at 7 seconds building to 6 to 8 ft at 8 seconds on Friday. Large W swell around 18 feet at 16 seconds tonight, subsiding to 10 to 12 ft at 14 seconds on Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Hazardous Seas Warning means hazardous sea conditions are imminent or occurring. Recreational boaters should remain in port, or take shelter until waves subside. Commercial vessels should prepare for rough seas and consider remaining in port or taking shelter in port until hazardous seas subside. $$
517 WHUS76 KEKA 181016 MWWEKA Urgent - Marine Weather Message National Weather Service Eureka CA 216 AM PST Fri Jan 18 2019 PZZ450-181830- /O.CAN.KEKA.SE.W.0005.000000T0000Z-190118T1300Z/ /O.EXB.KEKA.GL.W.0005.190118T2100Z-190119T0800Z/ Pt St George to Cape Mendocino out 10 nm- 216 AM PST Fri Jan 18 2019 ...GALE WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO MIDNIGHT PST TONIGHT... ...HAZARDOUS SEAS WARNING IS CANCELLED... The National Weather Service in Eureka has issued a Gale Warning, which is in effect from 1 PM this afternoon to midnight PST tonight. The Hazardous Seas Warning has been cancelled. * WINDS...S 10 to 20 kt, increasing to 20 to 30 kt on Friday. * WAVES...Steep S to SW waves 4 to 6 ft at 7 seconds building to 6 to 8 ft at 8 seconds on Friday. Large W swell around 18 feet at 16 seconds tonight, subsiding to 10 to 12 ft at 14 seconds on Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ PZZ470-181830- /O.CAN.KEKA.SE.W.0005.000000T0000Z-190118T1300Z/ /O.EXT.KEKA.GL.W.0005.190118T1800Z-190119T0800Z/ Pt St George to Cape Mendocino 10 to 60 nm- 216 AM PST Fri Jan 18 2019 ...GALE WARNING NOW IN EFFECT FROM 10 AM THIS MORNING TO MIDNIGHT PST TONIGHT... ...HAZARDOUS SEAS WARNING IS CANCELLED... The National Weather Service in Eureka has cancelled the Hazardous Seas Warning. * WINDS...S 15 to 20 kt tonight, increasing to 25 to 35 kt with gusts to 45 kt on Friday. * WAVES...Steep S waves 6 to 8 ft at 8 seconds, building to 11 to 13 ft at 11 seconds on Friday. Large W swell 18 feet at 15 seconds tonight, subsiding to 10 to 12 ft at 14 seconds on Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. && $$ PZZ455-475-181830- /O.CAN.KEKA.SE.W.0005.000000T0000Z-190118T1300Z/ /O.NEW.KEKA.SC.Y.0009.190118T1016Z-190122T0000Z/ Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 216 AM PST Fri Jan 18 2019 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM PST MONDAY... ...HAZARDOUS SEAS WARNING IS CANCELLED... The National Weather Service in Eureka has issued a Small Craft Advisory, which is in effect until 4 PM PST Monday. The Hazardous Seas Warning has been cancelled. * WINDS...S 10 to 20 kt, increasing to 20 to 30 kt on Friday. * WAVES...Steep S to SW waves 4 to 6 ft at 7 seconds building to 6 to 8 ft at 8 seconds on Friday. Large W swell around 18 feet at 16 seconds tonight, subsiding to 10 to 12 ft at 14 seconds on Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$
212 WHUS76 KEKA 181715 MWWEKA Urgent - Marine Weather Message National Weather Service Eureka CA 915 AM PST Fri Jan 18 2019 PZZ470-190115- /O.EXT.KEKA.GL.W.0005.190118T1715Z-190119T0800Z/ Pt St George to Cape Mendocino 10 to 60 nm- 915 AM PST Fri Jan 18 2019 ...GALE WARNING NOW IN EFFECT UNTIL MIDNIGHT TONIGHT... * WINDS...S 25 to 35 kt with gusts to 45 kt through this evening. * WAVES...Steep S waves building to 11 to 13 ft at 11 seconds today. W swell subsiding to 12 to 14 ft at 13 seconds today. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. $$ PZZ450-190115- /O.EXB.KEKA.SC.Y.0009.000000T0000Z-190118T2100Z/ /O.CON.KEKA.GL.W.0005.190118T2100Z-190119T0800Z/ Pt St George to Cape Mendocino out 10 nm- 915 AM PST Fri Jan 18 2019 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO MIDNIGHT TONIGHT... * WINDS...S 20 to 30 kt through this evening. Gusts to 35 kt this afternoon and evening. * WAVES...Steep S to SW waves 6 to 8 ft at 7 seconds today. W swell subsiding to 11 to 13 ft at 14 seconds today. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners, especially those operating smaller vessels should avoid navigating in these conditions. 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. $$ PZZ455-475-190115- /O.CON.KEKA.SC.Y.0009.000000T0000Z-190122T0000Z/ Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 915 AM PST Fri Jan 18 2019 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM MONDAY... * WINDS...SE to S 20 to 30 kt today and tonight. * WAVES...Steep S to SW waves 6 to 8 ft at 7 seconds today through Saturday. W swell 12 to 14 ft at 14 seconds today...subsiding to 10 ft at 13 seconds tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners, especially those operating smaller vessels should avoid navigating in these conditions. $$
970 WHUS76 KEKA 182250 MWWEKA Urgent - Marine Weather Message National Weather Service Eureka CA 250 PM PST Fri Jan 18 2019 PZZ470-190700- /O.CON.KEKA.GL.W.0005.000000T0000Z-190119T0800Z/ Pt St George to Cape Mendocino 10 to 60 nm- 250 PM PST Fri Jan 18 2019 ...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT TONIGHT... * WINDS...S 25 to 35 kt with gusts to 45 kt through this evening. * WAVES...Steep S waves 12 to 14 ft at 11 seconds today. W swell 11 to 14 ft at 13 seconds. 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. $$ PZZ450-190700- /O.CON.KEKA.GL.W.0005.000000T0000Z-190119T0800Z/ Pt St George to Cape Mendocino out 10 nm- 250 PM PST Fri Jan 18 2019 ...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT TONIGHT... * WINDS...S 20 to 30 kt with gusts to 35 kt through this evening. * WAVES...Steep S waves 9 to 12 ft at 9 seconds tonight. W swell 11 to 13 ft at 13 seconds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. $$ PZZ455-475-190700- /O.CON.KEKA.SC.Y.0009.000000T0000Z-190122T0000Z/ Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 250 PM PST Fri Jan 18 2019 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM MONDAY... * WINDS...SE to S 15 to 25 kt tonight. * WAVES...Steep S waves 8 to 10 ft at 10 seconds through Saturday. W swell 10 to 13 ft at 13 seconds. 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. $$
288 WHUS76 KEKA 190439 MWWEKA Urgent - Marine Weather Message National Weather Service Eureka CA 839 PM PST Fri Jan 18 2019 PZZ470-190800- /O.CON.KEKA.GL.W.0005.000000T0000Z-190119T0800Z/ Pt St George to Cape Mendocino 10 to 60 nm- 839 PM PST Fri Jan 18 2019 ...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PST TONIGHT... * WINDS...S 25 to 35 kt with gusts to 45 kt diminishing after midnight. * WAVES...Steep S waves 12 to 14 ft at 11 seconds today. W swell 8 to 10 ft at 13 seconds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. $$ PZZ450-190800- /O.CON.KEKA.GL.W.0005.000000T0000Z-190119T0800Z/ Pt St George to Cape Mendocino out 10 nm- 839 PM PST Fri Jan 18 2019 ...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PST TONIGHT... * WINDS...S 20 to 30 kt with gusts to 35 kt diminishing after midnight. * WAVES...Steep S waves 9 to 12 ft at 9 seconds tonight. W swell 8 to 10 ft at 13 seconds. 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. $$ PZZ455-475-191245- /O.CON.KEKA.SC.Y.0009.000000T0000Z-190122T0000Z/ Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 839 PM PST Fri Jan 18 2019 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST MONDAY... * WINDS...SE to S 15 to 25 kt tonight then diminishing slowly for the weekend. * WAVES...Steep S waves 8 to 10 ft at 10 seconds through Saturday. W swell 8 to 10 ft at 13 seconds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners, especially those operating smaller vessels should avoid navigating in these conditions. $$
586 WHUS76 KEKA 190759 MWWEKA Urgent - Marine Weather Message National Weather Service Eureka CA 1159 PM PST Fri Jan 18 2019 PZZ470-190900- /O.EXP.KEKA.GL.W.0005.000000T0000Z-190119T0800Z/ Pt St George to Cape Mendocino 10 to 60 nm- 1159 PM PST Fri Jan 18 2019 $$ PZZ450-191200- /O.EXT.KEKA.GL.W.0005.000000T0000Z-190119T1200Z/ Pt St George to Cape Mendocino out 10 nm- 1159 PM PST Fri Jan 18 2019 ...GALE WARNING NOW IN EFFECT UNTIL 4 AM PST SATURDAY... * WINDS...S 20 to 30 kt with gusts to 35 kt diminishing after midnight. * WAVES...Steep S waves 9 to 12 ft at 9 seconds tonight. W swell 8 to 10 ft at 13 seconds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Gale Warning means winds of 34 to 47 knots are imminent or occurring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions. $$ PZZ455-475-191600- /O.CON.KEKA.SC.Y.0009.000000T0000Z-190122T0000Z/ Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 1159 PM PST Fri Jan 18 2019 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST MONDAY... * WINDS...SE to S 15 to 25 kt tonight then diminishing slowly for the weekend. * WAVES...Steep S waves 8 to 10 ft at 10 seconds through Saturday. W swell 8 to 10 ft at 13 seconds. 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. $$
158 WHUS76 KEKA 191002 MWWEKA Urgent - Marine Weather Message National Weather Service Eureka CA 202 AM PST Sat Jan 19 2019 PZZ450-191815- /O.CAN.KEKA.GL.W.0005.000000T0000Z-190119T1200Z/ /O.NEW.KEKA.SC.Y.0010.190119T1002Z-190122T0000Z/ Pt St George to Cape Mendocino out 10 nm- 202 AM PST Sat Jan 19 2019 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM PST MONDAY... ...GALE WARNING IS CANCELLED... The National Weather Service in Eureka has issued a Small Craft Advisory, which is in effect until 4 PM PST Monday. The Gale Warning has been cancelled. * WINDS...S 20 to 30 kt with gusts to 35 kt diminishing after midnight. * WAVES...Steep S waves 9 to 12 ft at 9 seconds tonight. W swell 8 to 10 ft at 13 seconds. PRECAUTIONARY/PREPAREDNESS ACTIONS... PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners, especially those operating smaller vessels should avoid navigating in these conditions. && $$ PZZ470-191815- /O.EXA.KEKA.SC.Y.0009.000000T0000Z-190122T0000Z/ Pt St George to Cape Mendocino 10 to 60 nm- 202 AM PST Sat Jan 19 2019 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM PST MONDAY... The National Weather Service in Eureka has issued a Small Craft Advisory, which is in effect until 4 PM PST Monday. * WINDS...SE to S 15 to 25 kt tonight then diminishing slowly for the weekend. * WAVES...Steep S waves 8 to 10 ft at 10 seconds through Saturday. W swell 8 to 10 ft at 13 seconds. 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. $$ PZZ455-475-191815- /O.CON.KEKA.SC.Y.0009.000000T0000Z-190122T0000Z/ Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 202 AM PST Sat Jan 19 2019 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST MONDAY... * WINDS...SE to S 15 to 25 kt tonight then diminishing slowly for the weekend. * WAVES...Steep S waves 8 to 10 ft at 10 seconds through Saturday. W swell 8 to 10 ft at 13 seconds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that wind speeds of 21 to 33 knots are expected to produce hazardous wave conditions to small craft. Inexperienced mariners, especially those operating smaller vessels should avoid navigating in these conditions. $$
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 Eureka, CA wrote its last area forecast discussion before this gale warning went out at Jan 17, 4:45 AM PST, 10 hours 6 minutes earlier.
Area forecast discussion, Jan 17, 4:45 AM PST, 10 hours 6 minutes before
AREA FORECAST DISCUSSION
National Weather Service Eureka CA
445 AM PST Thu Jan 17 2019
.SYNOPSIS...In the wake of yesterday's cold front, showers and
isolated thunderstorms with heavy downpours and periods of gusty
winds will continue today. The offshore storm has also generated
a huge swell that will pound the beaches. Periods of rain will
continue Friday through this weekend, followed by high pressure
and dry weather next week.
&&
.DISCUSSION...Wet and windy weather continues across northwest
California today in the wake of yesterday's cold front. A
powerful area of low pressure centered offshore will gradually
weaken today while tracking northeastward toward Vancouver Island,
but shortwaves will continue to rotate around the upper-level
trough and across northwest California, enhancing shower activity
across our region. Mid-level temperatures have cooled
substantially, and will continue to do so until midday. This will
steepen lapse rates and result in sufficient instability for
thunderstorms. We have already seen quite a bit of lightning
activity around southern Humboldt and northern Mendocino county
overnight. The most likely areas to see thunderstorms will be
along the Redwood coast, but would not rule out a thunderstorm
anywhere in our area. Downpours will be common even outside of any
thunderstorms, and brief small hail will be possible. Temperatures
in the lower atmosphere are not cold enough for serious
accumulating small hail around our populated coastal plain, with
snow levels settling around 4,000 feet today, but that doesn't
mean drivers shouldn't exercise caution. Speaking of snow levels,
these will drop briefly lower at times in the heaviest showers,
and would not rule out minor accumulations below the 4,000-foot
level. Some of the Highway 36 passes may be impacted, though
accumulations should be limited to a couple inches of slush. Scott
Mountain Summit on Highway 3 will be high enough so that heavy
snow will continue to pile up there. Otherwise the rest of our
highway passes will remain just wet today.
Winds will be another continuing issue, though not as strong and
more localized than yesterday. A Wind Advisory continues for
interior Del Norte and Humboldt county elevations above 1500 feet,
and coastal Del Norte County. Southerly wind gusts since midnight
over the exposed high terrain and near Crescent City have been
topping out mainly around 40 to 45 mph, which is right on the edge
of advisory criteria. The advisory will end around 10 AM as winds
aloft, as well as surface winds, will begin to ease more
substantially.
Rainfall since Wednesday morning has amounted to 1 to 3 inches
across the majority of northwest California, with lesser amounts
along the Redwood coast where downsloping played a role. Expect
another half-inch to an inch of rain today with locally heavier
amounts near mountainous terrain. See the Hydrology section below
regarding flooding concerns.
Warmer air aloft coming in tonight will quickly diminish shower
activity later this afternoon and this evening. However, the next
system will quickly push a warm front across our area, with rain
becoming steadier across most of our area by Friday afternoon.
Rain will focus north of Cape Mendocino, especially near the
Oregon border, through Saturday, while a cold front stalls over
us. Another wave of low pressure will swing this front through
early on Sunday, with showers continuing into Sunday evening.
Models have been trending wetter with these two systems, with a
long duration of moderate rain. Totals may exceed 2 inches across
much of Humboldt, with as much as 4 to 6 inches across Del Norte
County by Sunday evening. Much lighter amounts, from a half inch
to an inch and a half will fall across eastern Trinity and
Mendocino county over the 3-day period from Friday through Sunday.
Winds will be locally gusty over the exposed high terrain and some
of the coastal headlands, but not nearly as strong as with this
past storm. Would not rule out a the need for a low-end wind
advisory with 40 to 50 mph gusts possible Friday afternoon or
evening around coastal Del Norte county and the high elevations
of Del Norte and Humboldt.
Otherwise, next week will feature a well-deserved break in the
weather, with a large ridge of high pressure expected to dominate
the patter across the eastern Pacific and the West Coast. Some
inland morning valley fog will likely be around to begin the
week...otherwise we have high confidence in dry, mild and sunny
weather all of next week into next weekend. /AAD
&&
.AVIATION...Showers and isolated thunderstorms will continue through
Thursday afternoon, and then dissipate during the evening. However,
another storm system will enter the region by Friday morning leading
to another period of moderate rain (particularly over Humboldt and
Del Norte counties), as well as gusty south winds, and possible IFR
ceilings/visibility. In addition to the gusty south winds, wind
shear appears probable along the coast by mid Friday morning.
JMG
&&
.MARINE...Gale force southerly winds will gradually weaken this
morning over the northern outer waters. However, a very large
westerly swell from 25-30 feet at 18 seconds will build across all
of the waters this morning, and then persist into Thursday evening.
Hazardous seas will be probable as a result. In addition, showers
and a few thunderstorms will be possible this morning and afternoon.
The west swell and seas will subside tonight, but south winds will
be on the increase once again Friday morning as a warm front lifts
north across the region...with gale force speeds possible over the
northern outer waters Friday morning into the evening. Unsettled
weather will continue through the weekend as a front lingers over
the area. Thereafter, high pressure will build over the NERN Pacific
early next week resulting in the development of moderate northerlies
persisting through Friday.
JMG
&&
.HYDROLOGY...We continue Flood Watches for the areas near the
Carr, Delta, and Mendocino Complex burn scars through this
afternoon. Rain rates thus far have been below 0.50 inches, and it
is generally understood that 0.80 inches per hour is needed for
mud or debris flow. However, with the threat of heavy downpours
and some thunderstorms today, am airing on the side of caution. A
flood warning will be issued if any storms do develop and persist
over the burn scars.
The Garcia River crested at 12.8 feet near Point Arena this
morning. An area near where the river crosses highway one is
notorious for flooding around this level, though we have not
received reports thus far. The river is already falling below 10
feet early this morning, so any issues should be resolved quickly,
and the flood watch for this area will likely be cancelled soon.
The Navarro River at Navarro needed a Flood Warning, and the
forecast took it to Moderate flood stage this morning. However, it
appears the river may be cresting early this morning. In any case,
the flood warning will need to be continued until at least around
midday. Additionally, river Statements have been issued for the
Russian River at Hopland due to the potential of some flooding of
Highway 175 near Hopland this morning. This river has crested at
16.5 feet and will continue to lower today. Another statement is
in effect for the Eel River at Fernbridge to reach monitor stage
this afternoon, and continue to rise into Friday, before slowly
lowering this weekend. /AAD
&&
.BEACH HAZARDS/COASTAL FLOODING...A huge westerly swell will
impact NW California beaches today. Breaker heights will rapidly
build and reach 30 to 35 feet. 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.
High astronomical high tides will occur on Sunday and into early
next week. Minor coastal flooding is possible during the daily late
morning and early afternoon high tides, with the highest
astronomical tides expected on Monday. /SEC
&&
.EKA WATCHES/WARNINGS/ADVISORIES...
CA...Flood Watch until noon PST today for CAZ109.
High Surf Warning until 5 AM PST Friday for CAZ101-103-104-109.
Wind Advisory until 10 AM PST this morning for CAZ101-102-105-
106.
Coastal Flood Advisory from 7 AM to 9 AM PST this morning for
CAZ103.
Flood Watch through this afternoon for CAZ107-110-113.
NORTHWEST CALIFORNIA COASTAL WATERS...Gale Warning until 10 AM PST
this morning for PZZ450-470.
Hazardous Seas Warning from 10 AM this morning to 5 AM PST
Friday for PZZ450-470.
Hazardous Seas Warning until 5 AM PST Friday for PZZ455-475.
&&
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For forecast zone information
see the forecast zone map online:
http://www.weather.gov/eureka/zonemap.pngHazardous weather outlook, Jan 17, 10:35 AM PST, 4 hours 16 minutes before
Hazardous Weather Outlook National Weather Service Eureka CA 1035 AM PST Thu Jan 17 2019 CAZ102-105-106-108-111-112-181845- Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Southern Trinity- Northeastern Mendocino Interior-Southwestern Mendocino Interior- 1035 AM PST Thu Jan 17 2019 This hazardous weather outlook is for northwest California. .DAY ONE...Today and tonight. Heavy downpours and isolated thunderstorms will continue through this afternoon. Snow levels will average around 4000 feet today, with some minor accumulation possible on Highway 36 passes. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant weather to the National Weather Service in Eureka. For further details please refer to NOAA Weather Radio or weather.gov/eureka. CAZ107-110-113-181845- Northern Trinity-Northwestern Mendocino Interior- Southeastern Mendocino Interior- 1035 AM PST Thu Jan 17 2019 ...FLOOD WATCH IN EFFECT UNTIL 4 PM THIS AFTERNOON... This hazardous weather outlook is for northwest California. .DAY ONE...Today and tonight. A Flood Watch remains in effect for the Carr and Delta fire burn scars. Heavy downpours and isolated thunderstorms will continue through this afternoon. Snow levels will average around 4000 feet today, with some minor accumulation possible on Highway 36 passes. Heavy snowfall will be found over Scott Mountain Summit on Highway 3. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant weather to the National Weather Service in Eureka. For further details please refer to NOAA Weather Radio or weather.gov/eureka. CAZ101-103-104-181845- Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- 1035 AM PST Thu Jan 17 2019 ...HIGH SURF WARNING IN EFFECT UNTIL 5 AM FRIDAY... This hazardous weather outlook is for northwest California. .DAY ONE...Today and tonight. A High Surf Warning is in effect through early Friday morning. Isolated thunderstorms will continue into this afternoon, with frequent showers with heavy downpours and brief small hail. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. More rain is expected to impact the area Friday through Sunday. Several inches of additional rainfall will likely fall, with strong southerly winds possible on Friday. High astronomical tides are expected this weekend and early next week. Minor coastal flooding is possible. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant weather to the National Weather Service in Eureka. For further details please refer to NOAA Weather Radio or weather.gov/eureka. CAZ109-181845- Mendocino Coast- 1035 AM PST Thu Jan 17 2019 ...HIGH SURF WARNING IN EFFECT UNTIL 5 AM FRIDAY... This hazardous weather outlook is for northwest California. .DAY ONE...Today and tonight. A High Surf Warning is in effect through early Friday morning. Isolated thunderstorms will continue through this afternoon. Small hail will also be possible, with heavy downpours likely with stronger showers. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. High astronomical tides are expected this weekend and early next week. Minor coastal flooding is possible. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant weather to the National Weather Service in Eureka. For further details please refer to NOAA Weather Radio or weather.gov/eureka.
In the hours before
Special weather statement, Jan 17, 10:57 AM PST, 3 hours 54 minutes before
Special Weather Statement
National Weather Service Eureka CA
1057 AM PST THU JAN 17 2019
CAZ103>106-171945-
Southwestern Humboldt CA-Northern Humboldt Coast CA-
Southern Humboldt Interior CA-Northern Humboldt Interior CA-
1057 AM PST THU JAN 17 2019
...SIGNIFICANT WEATHER ADVISORY FOR WESTERN HUMBOLDT COUNTY UNTIL
1145 AM PST...
At 1054 AM PST, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles north of Trinidad to 26 miles west of
Petrolia. Movement was east at 30 mph.
Pea sized hail and winds around 40 mph will be possible with these
storms.
Locations impacted include...
Eureka, Arcata, Orick, Fortuna, Rio Dell, Trinidad, McKinleyville,
Carlotta, Westhaven-Moonstone, Scotia, Petrolia, Ferndale, Blue Lake,
Myrtletown, Cutten, Hydesville, Capetown, Humboldt Hill, Freshwater
and Kneeland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Small hail is expected to affect highway 101 from Hydesville to
Orick.
Dark clouds ahead may signal the potential for small hail, so slow
down and ensure that your headlights are on. Small hail can
accumulate on roadways resulting in very slippery conditions. If
driving on a hail covered road, do not slam on the brakes. Instead
ease off the gas pedal and avoid over-correcting.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4060 12442 4102 12425 4111 12431 4118 12427
4120 12419 4136 12414 4126 12374 4021 12418
4025 12438 4029 12441
TIME...MOT...LOC 1854Z 351DEG 9KT 4115 12415 4040 12478
DJBLocal storm report, Jan 17, 11:09 AM PST, 3 hours 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EUREKA CA
1109 AM PST THU JAN 17 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0751 AM HAIL 1 NW MCKINLEYVILLE 40.95N 124.10W
01/17/2019 M0.25 INCH HUMBOLDT CA NWS EMPLOYEE
0722 AM HAIL 1 NW MCKINLEYVILLE 40.95N 124.10W
01/17/2019 M0.25 INCH HUMBOLDT CA NWS EMPLOYEE
&&Local storm report, Jan 17, 11:14 AM PST, 3 hours 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EUREKA CA
1114 AM PST THU JAN 17 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1110 AM HAIL EUREKA 40.80N 124.16W
01/17/2019 M0.25 INCH HUMBOLDT CA OFFICIAL NWS OBS
TRACE ACCUMULATION ON GROUND. DURATION OF 10
MINUTES.
1109 AM HAIL 2 NNE ARCATA 40.90N 124.07W
01/17/2019 M0.25 INCH HUMBOLDT CA NWS EMPLOYEE
&&Local storm report, Jan 17, 11:16 AM PST, 3 hours 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EUREKA CA
1116 AM PST THU JAN 17 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1100 AM HAIL CUTTEN 40.77N 124.14W
01/17/2019 M0.25 INCH HUMBOLDT CA TRAINED SPOTTER
&&Special weather statement, Jan 17, 11:35 AM PST, 3 hours 16 minutes before
Special Weather Statement
National Weather Service Eureka CA
1135 AM PST THU JAN 17 2019
CAZ103>106-172015-
Southwestern Humboldt CA-Northern Humboldt Coast CA-
Southern Humboldt Interior CA-Northern Humboldt Interior CA-
1135 AM PST THU JAN 17 2019
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL HUMBOLDT COUNTY UNTIL
1215 PM PST...
At 1130 AM PST, Doppler radar was tracking strong thunderstorms along
a line extending from Trinidad to 25 miles west of Petrolia. Movement
was south at 10 mph.
Pea sized hail and winds around 40 mph will be possible with these
storms.
Locations impacted include...
Eureka, Arcata, Hoopa, Grizzly Creek Redwoods State Park, Willow
Creek, Fortuna, Rio Dell, Trinidad, McKinleyville, Maple Creek,
Carlotta, Westhaven-Moonstone, Scotia, Pepperwood, Ferndale, Blue
Lake, Myrtletown, Cutten, Hydesville and Willow Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Small hail is expected to affect highway 101 from Orick to
Hydesville and Highway 299 from Arcata to Willow Creek.
Dark clouds ahead may signal the potential for small hail, so slow
down and ensure that your headlights are on. Small hail can
accumulate on roadways resulting in very slippery conditions. If
driving on a hail covered road, do not slam on the brakes. Instead
ease off the gas pedal and avoid over-correcting.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4060 12442 4111 12417 4115 12357 4038 12396
4041 12442
TIME...MOT...LOC 1930Z 351DEG 9KT 4106 12413 4031 12477
DJBLocal storm report, Jan 17, 2:31 PM PST, 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EUREKA CA
231 PM PST THU JAN 17 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1100 AM HAIL 1 E FAIRHAVEN 40.78N 124.18W
01/17/2019 M0.25 INCH HUMBOLDT CA NWS EMPLOYEE
PERIODIC HAIL IN THE THUNDERSTORM FROM 11:00
THROUGH 11:15 IN THIS GENERAL AREA. MIXED
WITH RAIN.
&&
MKKThe office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 16, 4:20 PM PST | Areal Flood Advisory | EKA | Humboldt | 3 hr |
| Jan 16, 4:43 PM PST | Special Weather Statement | EKA | Humboldt | 17 min |
| Jan 16, 5:27 PM PST | Areal Flood Advisory | EKA | Mendocino | 3 hr |
| Jan 16, 6:11 PM PST | Areal Flood Advisory | EKA | Mendocino | 3 hr |
| Jan 16, 6:49 PM PST | River Flood Advisory | EKA | Mendocino | 8 hr |
| Jan 16, 8:18 PM PST | River Flood Warning | EKA | Mendocino | 13 hr |
| Jan 16, 10:41 PM PST | Coastal Flood Advisory | EKA | Humboldt | 10 hr |
| Jan 17, 7:19 AM PST | Special Weather Statement | EKA | Humboldt | 41 min |
| Jan 17, 7:38 AM PST | Special Weather Statement | EKA | Humboldt | 37 min |
| Jan 17, 8:06 AM PST | Coastal Flood Warning | EKA | Mendocino | 114 min |
| Jan 17, 9:03 AM PST | Special Weather Statement | EKA | 42 min | |
| Jan 17, 9:18 AM PST | Special Weather Statement | EKA | Del Norte | 42 min |
| Jan 17, 9:54 AM PST | Special Weather Statement | EKA | Del Norte | 36 min |
| Jan 17, 10:13 AM PST | Special Weather Statement | EKA | Humboldt, Trinity | 47 min |
| Jan 17, 10:57 AM PST | Special Weather Statement | EKA | Humboldt | 48 min |
| Jan 17, 11:35 AM PST | Special Weather Statement | EKA | Humboldt | 40 min |
Nearby
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.