Alert archive / California / Wind Advisories in 2023

Wind Advisory 7, NWS Eureka, CA

January 10, 2023Del Norte County, Humboldt County, Mendocino County, California

NWS Eureka, CA issued this wind advisory at Jan 10, 2023, 10:52 PM PST for Del Norte County, Humboldt County, Mendocino County, California. It took effect at Jan 11, 2023, 8:00 AM PST. It was in force for 46 hr.

The area

The counties it named.

The facts

Issued
Jan 10, 2023, 10:52 PM PST (06:52 UTC)
In effect from
Jan 11, 2023, 8:00 AM PST
Expired
Jan 13, 2023, 6:00 AM PST
In force
46 hr
Issued by
NWS Eureka, CA

Counties Del Norte County, CA, Humboldt County, CA, Mendocino County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 47 km from the middle of the area, began a volume at 06:52 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Medford/Jackson, OR (KMFR), launched 00:00Z, 6.9 hours before the alert went out and 210 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Medford/Jackson, OR at 00:00Z on 2023-01-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 30 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Medford/Jackson, OR at 00:00Z on 2023-01-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
30 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
1476 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
343 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

486 
WWUS76 KEKA 110652
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
1052 PM PST Tue Jan 10 2023

CAZ102-104>106-110-111500-
/O.NEW.KEKA.WI.Y.0007.230111T1600Z-230113T0000Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northwestern Mendocino Interior-
1052 PM PST Tue Jan 10 2023

...WIND ADVISORY IN EFFECT FROM 8 AM WEDNESDAY TO 4 PM PST
THURSDAY...

* WHAT...Southeast winds 20 to 30 mph with gusts up to 60 mph 
  expected.

* WHERE...Del Norte Interior, Southwestern Humboldt, Northern 
  Humboldt Interior, Southern Humboldt Interior and Northwestern 
  Mendocino Interior Counties.

* WHEN...From 8 AM Wednesday to 4 PM PST Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

CAZ109-111500-
/O.NEW.KEKA.WI.Y.0007.230111T1800Z-230113T0000Z/
Mendocino Coast-
1052 PM PST Tue Jan 10 2023

...WIND ADVISORY IN EFFECT FROM 10 AM WEDNESDAY TO 4 PM PST
THURSDAY...

* WHAT...Southeast winds 20 to 30 mph with gusts up to 55 mph 
  expected.

* WHERE...Mendocino Coast County.

* WHEN...From 10 AM Wednesday to 4 PM PST Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

CAZ101-111500-
/O.NEW.KEKA.WI.Y.0007.230112T0000Z-230113T0000Z/
Coastal Del Norte-
1052 PM PST Tue Jan 10 2023

...WIND ADVISORY IN EFFECT FROM 4 PM WEDNESDAY TO 4 PM PST
THURSDAY...

* WHAT...Southeast winds 20 to 30 mph with gusts up to 60 mph 
  expected.

* WHERE...Coastal Del Norte County.

* WHEN...From 4 PM Wednesday to 4 PM PST Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

CAZ112-111500-
/O.NEW.KEKA.WI.Y.0007.230112T0000Z-230112T1200Z/
Southwestern Mendocino Interior-
1052 PM PST Tue Jan 10 2023

...WIND ADVISORY IN EFFECT FROM 4 PM WEDNESDAY TO 4 AM PST
THURSDAY...

* WHAT...Southeast winds 15 to 25 mph with gusts up to 45 mph 
  expected.

* WHERE...Southwestern Mendocino Interior County.

* WHEN...From 4 PM Wednesday to 4 AM PST Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
9 follow-up statements
113 
WWUS76 KEKA 111041
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
241 AM PST Wed Jan 11 2023

CAZ103-120000-
/O.EXA.KEKA.WI.Y.0007.230111T1800Z-230113T0000Z/
Northern Humboldt Coast-
241 AM PST Wed Jan 11 2023

...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 4 PM 
THURSDAY...

* WHAT...Southeast winds 20 to 30 mph with gusts to 55 mph 
  expected.

* WHERE...Northern Humboldt Coast.

* WHEN...From 10 AM Wednesday to 4 PM Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high 
profile vehicle. Secure outdoor objects.

$$

CAZ102-104>106-110-120000-
/O.CON.KEKA.WI.Y.0007.230111T1600Z-230113T0000Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northwestern Mendocino Interior-
241 AM PST Wed Jan 11 2023

...WIND ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 4 PM
THURSDAY...

* WHAT...Southeast winds 20 to 30 mph with gusts to 60 mph expected.

* WHERE...Del Norte Interior, Southwestern Humboldt, Northern
  Humboldt Interior, Southern Humboldt Interior, and Northwestern
  Mendocino Interior.

* WHEN...From 8 AM Wednesday to 4 PM Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high 
profile vehicle. Secure outdoor objects.

$$

CAZ109-120000-
/O.CON.KEKA.WI.Y.0007.230111T1800Z-230113T0000Z/
Mendocino Coast-
241 AM PST Wed Jan 11 2023

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
4 PM THURSDAY...

* WHAT...Southeast winds 20 to 30 mph with gusts to 55 mph expected.

* WHERE...Mendocino Coast.

* WHEN...From 10 AM Wednesday to 4 PM Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

$$

CAZ101-120000-
/O.CON.KEKA.WI.Y.0007.230112T0000Z-230113T0000Z/
Coastal Del Norte-
241 AM PST Wed Jan 11 2023

...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
4 PM THURSDAY...

* WHAT...Southeast winds 20 to 30 mph with gusts to 60 mph expected.

* WHERE...Coastal Del Norte County.

* WHEN...From 4 PM Wednesday to 4 PM Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

$$

CAZ112-120000-
/O.CON.KEKA.WI.Y.0007.230112T0000Z-230112T1200Z/
Southwestern Mendocino Interior-
241 AM PST Wed Jan 11 2023

...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
4 AM THURSDAY...

* WHAT...Southeast winds 15 to 25 mph with gusts to 45 mph expected.

* WHERE...Southwestern Mendocino Interior.

* WHEN...From 4 PM Wednesday to 4 AM Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

$$

SEC
505 
WWUS76 KEKA 112221
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
221 PM PST Wed Jan 11 2023

CAZ102-104>106-109-110-120630-
/O.EXT.KEKA.WI.Y.0007.000000T0000Z-230113T1100Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Mendocino Coast-Northwestern Mendocino Interior-
221 PM PST Wed Jan 11 2023

...WIND ADVISORY NOW IN EFFECT UNTIL 3 AM PST FRIDAY...

* WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph.

* WHERE...Del Norte Interior, Southwestern Humboldt, Northern 
  Humboldt Interior, Southern Humboldt Interior, Mendocino Coast 
  and Northwestern Mendocino Interior Counties.

* WHEN...Until 3 AM PST Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

CAZ103-120630-
/O.CON.KEKA.WI.Y.0007.000000T0000Z-230113T0000Z/
Northern Humboldt Coast-
221 PM PST Wed Jan 11 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THURSDAY...

* WHAT...Southeast winds 20 to 30 mph with gusts up to 50 mph.

* WHERE...Northern Humboldt Coast County.

* WHEN...Until 4 PM PST Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

CAZ101-120630-
/O.CON.KEKA.WI.Y.0007.230112T0000Z-230113T0000Z/
Coastal Del Norte-
221 PM PST Wed Jan 11 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THURSDAY...

* WHAT...Southeast winds 20 to 30 mph with gusts up to 45 mph 
  expected.

* WHERE...Coastal Del Norte County.

* WHEN...Until 4 PM PST Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

CAZ112-120630-
/O.CON.KEKA.WI.Y.0007.230112T0000Z-230112T1200Z/
Southwestern Mendocino Interior-
221 PM PST Wed Jan 11 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST THURSDAY...

* WHAT...Southeast winds 15 to 25 mph with gusts up to 45 mph 
  expected.

* WHERE...Southwestern Mendocino Interior County.

* WHEN...Until 4 AM PST Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
796 
WWUS76 KEKA 120620
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
1020 PM PST Wed Jan 11 2023

CAZ112-120730-
/O.CAN.KEKA.WI.Y.0007.000000T0000Z-230112T1200Z/
Southwestern Mendocino Interior-
1020 PM PST Wed Jan 11 2023

...WIND ADVISORY IS CANCELLED...


$$

CAZ101-103-121300-
/O.CON.KEKA.WI.Y.0007.000000T0000Z-230113T0000Z/
Coastal Del Norte-Northern Humboldt Coast-
1020 PM PST Wed Jan 11 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THURSDAY...

* WHAT...Southeast winds 20 to 30 mph with gusts up to 55 mph.

* WHERE...Coastal Del Norte and Northern Humboldt Coast Counties.

* WHEN...Until 4 PM PST Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

CAZ102-104>106-109-110-121300-
/O.CON.KEKA.WI.Y.0007.000000T0000Z-230113T1100Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Mendocino Coast-Northwestern Mendocino Interior-
1020 PM PST Wed Jan 11 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST FRIDAY...

* WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph.

* WHERE...Del Norte Interior, Southwestern Humboldt, Northern 
  Humboldt Interior, Southern Humboldt Interior, Mendocino Coast 
  and Northwestern Mendocino Interior Counties.

* WHEN...Until 3 AM PST Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
704 
WWUS76 KEKA 121354
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
554 AM PST Thu Jan 12 2023

CAZ101-103-122200-
/O.CON.KEKA.WI.Y.0007.000000T0000Z-230113T0000Z/
Coastal Del Norte-Northern Humboldt Coast-
554 AM PST Thu Jan 12 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM THIS AFTERNOON...

* WHAT...Southeast winds 20 to 30 mph with gusts to 55 mph.

* WHERE...Coastal Del Norte and Northern Humboldt Coast Counties.

* WHEN...Until 4 PM Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

$$

CAZ102-104>106-109-110-122200-
/O.CON.KEKA.WI.Y.0007.000000T0000Z-230113T1100Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Mendocino Coast-Northwestern Mendocino Interior-
554 AM PST Thu Jan 12 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM FRIDAY...

* WHAT...Southeast winds 25 to 35 mph with gusts to 60 mph.

* WHERE...Del Norte Interior, Southwestern Humboldt, Northern 
  Humboldt Interior, Southern Humboldt Interior, Mendocino Coast 
  and Northwestern Mendocino Interior Counties.

* WHEN...Until 3 AM Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

$$
872 
WWUS76 KEKA 122148
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
148 PM PST Thu Jan 12 2023

CAZ101-103-130000-
/O.CON.KEKA.WI.Y.0007.000000T0000Z-230113T0000Z/
Coastal Del Norte-Northern Humboldt Coast-
148 PM PST Thu Jan 12 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WHAT...Southeast winds 20 to 30 mph with gusts up to 60 mph.

* WHERE...Coastal Del Norte and Northern Humboldt Coast Counties.

* WHEN...Until 4 PM PST this afternoon.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

CAZ102-104>106-109-110-130600-
/O.CON.KEKA.WI.Y.0007.000000T0000Z-230113T1100Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Mendocino Coast-Northwestern Mendocino Interior-
148 PM PST Thu Jan 12 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST FRIDAY...

* WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph.

* WHERE...Del Norte Interior, Southwestern Humboldt, Northern 
  Humboldt Interior, Southern Humboldt Interior, Mendocino Coast 
  and Northwestern Mendocino Interior Counties.

* WHEN...Until 3 AM PST Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
500 
WWUS76 KEKA 122300
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
300 PM PST Thu Jan 12 2023

CAZ101-103-130000-
/O.CAN.KEKA.WI.Y.0007.000000T0000Z-230113T0000Z/
Coastal Del Norte-Northern Humboldt Coast-
300 PM PST Thu Jan 12 2023

...WIND ADVISORY IS CANCELLED...

$$

CAZ102-104>106-109-110-130700-
/O.CON.KEKA.WI.Y.0007.000000T0000Z-230113T1100Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Mendocino Coast-Northwestern Mendocino Interior-
300 PM PST Thu Jan 12 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST FRIDAY...

* WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph.

* WHERE...Del Norte Interior, Southwestern Humboldt, Northern 
  Humboldt Interior, Southern Humboldt Interior, Mendocino Coast 
  and Northwestern Mendocino Interior Counties.

* WHEN...Until 3 AM PST Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
185 
WWUS76 KEKA 130452
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
852 PM PST Thu Jan 12 2023

CAZ103-131100-
/O.EXB.KEKA.WI.Y.0007.230113T0500Z-230113T1100Z/
Northern Humboldt Coast-
852 PM PST Thu Jan 12 2023

...WIND ADVISORY IN EFFECT UNTIL 3 AM PST FRIDAY...

* WHAT...Southeast winds 20 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...Northern Humboldt Coast County.

* WHEN...Until 3 AM PST Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

CAZ102-104>106-109-110-131100-
/O.CON.KEKA.WI.Y.0007.000000T0000Z-230113T1100Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Mendocino Coast-Northwestern Mendocino Interior-
852 PM PST Thu Jan 12 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST FRIDAY...

* WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph.

* WHERE...Del Norte Interior, Southwestern Humboldt, Northern 
  Humboldt Interior, Southern Humboldt Interior, Mendocino Coast 
  and Northwestern Mendocino Interior Counties.

* WHEN...Until 3 AM PST Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
949 
WWUS76 KEKA 131059
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
259 AM PST Fri Jan 13 2023

CAZ102>106-109-110-131400-
/O.EXT.KEKA.WI.Y.0007.000000T0000Z-230113T1400Z/
Del Norte Interior-Northern Humboldt Coast-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Mendocino Coast-Northwestern Mendocino Interior-
259 AM PST Fri Jan 13 2023

...WIND ADVISORY NOW IN EFFECT UNTIL 6 AM EARLY THIS MORNING...

* WHAT...Southeast winds 25 to 35 mph with gusts to 55 mph.

* WHERE...Del Norte Interior, Humboldt County, Mendocino Coast and
  Northwestern Mendocino Interior.

* WHEN...Until 6 AM early this morning.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

$$
589 
WWUS76 KEKA 131402
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
602 AM PST Fri Jan 13 2023

CAZ102>106-109-110-131515-
/O.EXP.KEKA.WI.Y.0007.000000T0000Z-230113T1400Z/
Del Norte Interior-Northern Humboldt Coast-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Mendocino Coast-Northwestern Mendocino Interior-
602 AM PST Fri Jan 13 2023

...WIND ADVISORY HAS EXPIRED...

Wind speeds will continue to diminish through the morning hours.

$$

What forecasters said that day

The local office's own words before this wind 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 wind advisory went out at Jan 10, 2:55 PM PST, 7 hours 57 minutes earlier.

Area forecast discussion, Jan 10, 2:55 PM PST, 7 hours 57 minutes before
AREA FORECAST DISCUSSION
National Weather Service Eureka CA
255 PM PST Tue Jan 10 2023

.SYNOPSIS...Showers, isolated thunderstorms, and gusty winds will
gradually diminish this evening. However, another storm system is
forecast to impact the region Wednesday through the weekend. That
storm will yield strong southeast winds and periods of moderate
rainfall across Northwest California.

&&

.DISCUSSION...A modestly unstable post-frontal airmass was
yielding scattered to numerous showers and isolated thunderstorms
across NRN CA this afternoon. In addition, an ejecting surface low
pressure center over the coastal waters was aiding in gusty south
winds near advisory criteria across coastal Del Norte County.
Wind speeds and showers are forecast to diminish this evening as
midlevel heights and temperatures gradually increase. However, a
potent upper wave was evident in WV imagery over the NERN PAC.
That wave is forecast to amplify offshore during the next 24-48
hours, with deep-layer southerly flow becoming positioned along
the West Coast. A surface front will be located beneath the upper-
level meridional flow, and that juxtaposition will likely cause
the front to stall offshore, at least through Friday. Moderate to
locally heavy pre-frontal rains may occur within a zone of low to
midlevel warm air advection and SWLY IVT values near 750 kg/m/s
Wednesday afternoon and night. Thereafter, mesoscale forcing for
heavy rainfall focused along the front may fail to move inland
until an upper-level kicker system nudges the entire trough east.
Otherwise, a 60-80 kt low-level pre-frontal coastal barrier jet
will aid in strong southeast winds over NWRN CA, with a prolonged
period of advisory gusts expected across exposed ridges and
coastal headlands from Wednesday afternoon through Friday morning.

Model guidance indicates the previously mentioned upper-level
kicker will arrive Friday afternoon into the weekend. The offshore
trough is forecast to subsequently move inland. Showers will
continue across the region as that takes place, and snow levels
may fall to impactful elevations as colder midlevel temperatures
overspread the region with the advancing trough.

Garner

&&

.AVIATION...Rain and gusty winds prevail at most terminals
although timing and thunderstorm activity differ. The offshore
low to the northwest, will keep moisture funneling into the area.
KCEC has shown thunderstorm activity offshore and to the south of
the terminal into the late afternoon with IFR conditions from
lower visibility. KACV also has a threat of thunderstorm activity
as rain, gusty southerlies and instability remain overnight. KUKI
has brief bouts of gusty winds with MVFR/VFR conditions as well as
an evening thunderstorm threat. Relief from thunderstorm activity
will come early Wednesday morning for the area. Thereafter, strong
southeast winds and low-level wind shear will redevelop across
much of the region. /EYS

&&

.MARINE...Southerly winds will continue with elevated gusts but
will ease slightly before the next round of heavy winds. A
hazardous seas warning is in effect for the southern outer waters
while conditions are mostly small craft advisory elsewhere. Gale
force winds then return to all waters Wednesday, with storm force
gusts expected over the northern outer waters. Otherwise, a
series of large westerly swells will spread across the waters
through the week. Seas near 20 to 25 feet are expected by Thursday
afternoon. /EYS

&&

.HYDROLOGY...The Russian River at Hopland will oscillate around
minor flood stage through the weekend due to continued periods of
moderate rainfall. In addition, heavy rain occurring across
Humboldt and Mendocino Counties will support minor flooding along
the Eel River at Fernbridge by Friday. Otherwise, a frontal
system approaching the region Wednesday into the weekend will
continue to be monitored for possible urban and small stream flood
impacts.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
     Wind Advisory until 5 PM PST this afternoon for CAZ101.

     Flood Watch until 4 PM PST this afternoon for CAZ109>115.

NORTHWEST CALIFORNIA COASTAL WATERS...
     Small Craft Advisory until 10 AM PST Wednesday for PZZ450-
     455.

     Gale Warning from 10 AM Wednesday to 4 PM PST Thursday for
     PZZ450-455.

     Small Craft Advisory until 4 AM PST Wednesday for PZZ470.

     Gale Warning from 4 AM to 10 AM PST Wednesday for PZZ470.

     Storm Warning from 10 AM Wednesday to 4 PM PST Thursday for
     PZZ470.

     Hazardous Seas Warning until 4 AM PST Wednesday for PZZ475.

     Gale Warning from 4 AM Wednesday to 4 PM PST Thursday for
     PZZ475.

&&

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For forecast zone information
see the forecast zone map online:
https://www.weather.gov/images/eka/zonemap.png
Hazardous weather outlook, Jan 10, 5:29 PM PST, 5 hours 23 minutes before
Hazardous Weather Outlook
National Weather Service Eureka CA
529 PM PST Tue Jan 10 2023

CAZ101-103-104-109-120130-
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
Mendocino Coast-
529 PM PST Tue Jan 10 2023

...HIGH SURF ADVISORY IN EFFECT FROM 1 PM THURSDAY TO 10 AM PST
FRIDAY...

This hazardous weather outlook is for northwest California.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

A High Surf Advisory is currently in effect.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

CAZ102-105>108-110>115-120130-
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
Southwestern Mendocino Interior-Southeastern Mendocino Interior-
Northern Lake-Southern Lake-
529 PM PST Tue Jan 10 2023

This hazardous weather outlook is for northwest California.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

In the hours before

Special weather statement, Jan 10, 6:44 PM PST, 4 hours 8 minutes before
Special Weather Statement
National Weather Service Eureka CA
644 PM PST Tue Jan 10 2023

CAZ104-106-108>111-110315-
Southwestern Humboldt CA-Southern Trinity CA-
Southern Humboldt Interior CA-Mendocino Coast CA-
Northwestern Mendocino Interior CA-
Northeastern Mendocino Interior CA-
644 PM PST Tue Jan 10 2023

...A strong thunderstorm will impact portions of northwestern
Mendocino and south Humboldt through 715 PM PST...

At 641 PM PST, Doppler radar was tracking a strong thunderstorm
south of Shelter Cove, moving northeast at 25 mph.

HAZARD...Winds gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Richardson Grove State Park, Leggett, Richardson Grove and Piercy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3997 12396 4029 12334 4006 12317 3981 12384
      3982 12385 3983 12385 3984 12386
TIME...MOT...LOC 0241Z 240DEG 48KT 3993 12382

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

DB
Special weather statement, Jan 10, 6:51 PM PST, 4 hours 1 minute before
Special Weather Statement
National Weather Service Eureka CA
651 PM PST Tue Jan 10 2023

CAZ106-109-110-110315-
Southern Humboldt Interior CA-Mendocino Coast CA-
Northwestern Mendocino Interior CA-
651 PM PST Tue Jan 10 2023

...A strong thunderstorm will impact portions of northwestern
Mendocino and south central Humboldt Counties through 715 PM PST...

At 650 PM PST, Doppler radar was tracking a strong thunderstorm near
Richardson Grove State Park, moving northeast at 25 mph.

HAZARD...Wind gusts up to 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Richardson Grove State Park, Richardson Grove and Piercy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3987 12389 3991 12391 4012 12371 3996 12355
TIME...MOT...LOC 0250Z 232DEG 13KT 3994 12381

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

DB
Special weather statement, Jan 10, 7:26 PM PST, 3 hours 26 minutes before
Special Weather Statement
National Weather Service Eureka CA
726 PM PST Tue Jan 10 2023

CAZ104-106-109-110-110400-
Southwestern Humboldt CA-Southern Humboldt Interior CA-
Mendocino Coast CA-Northwestern Mendocino Interior CA-
726 PM PST Tue Jan 10 2023

...Strong thunderstorms will impact portions of northwestern
Mendocino and south central Humboldt Counties through 800 PM PST...

At 725 PM PST, Doppler radar was tracking strong thunderstorms along
a line extending from 10 miles west of Shelter Cove to 17 miles west
of Whitehorn to 24 miles west of Rockport to 37 miles southwest of
Honeydew. Movement was northeast at 25 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Shelter Cove, Richardson Grove State Park, Whitehorn, Leggett,
Richardson Grove, Redway, Piercy, Briceland, Benbow and Ettersburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

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 4030 12398 3985 12359 3979 12384 3983 12385
      3986 12391 3991 12393 3992 12396 3996 12398
      4002 12405 4003 12408 4007 12408 4010 12411
      4013 12419 4014 12420
TIME...MOT...LOC 0325Z 237DEG 22KT 4000 12425 3992 12423 3985 12426
3979 12430 3974 12440

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

DB

The office that day

Everything else NWS Eureka, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 10, 6:44 PM PSTSpecial Weather StatementEKA31 min
Jan 10, 6:51 PM PSTSpecial Weather StatementEKA24 min
Jan 10, 7:26 PM PSTSpecial Weather StatementEKA34 min
Jan 11, 1:24 AM PSTWinter Weather AdvisoryEKA21 hr
Jan 11, 2:10 AM PSTFlood WatchEKAHumboldt, Lake, Mendocino, Trinity23 hr
Jan 11, 2:50 AM PSTRiver Flood WatchEKAMendocino57 hr

Nearby

Wind Advisories in California, 2023Every wind advisory in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.