Alert archive / California / Wind Advisories in 2019

Wind Advisory 1, NWS Eureka, CA

January 4, 20194 counties in California

NWS Eureka, CA issued this wind advisory at Jan 4, 2019, 4:21 AM PST for 4 counties in California. It took effect at Jan 5, 2019, 4:00 AM PST. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Jan 4, 2019, 4:21 AM PST (12:21 UTC)
In effect from
Jan 5, 2019, 4:00 AM PST
Expired
Jan 5, 2019, 6:00 PM PST
In force
14 hr
Issued by
NWS Eureka, CA

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

The radar

The Eureka (Bunker Hill) radar (KBHX), 60 km from the middle of the area, began a volume at 12:20 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 12:00Z, 0.4 hours before the alert went out and 204 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 12:00Z on 2019-01-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Medford/Jackson, OR at 12:00Z on 2019-01-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 247 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1489 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
247 m²/s²
0-3 km storm-relative helicity
345 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

216 
WWUS76 KEKA 041221
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
421 AM PST Fri Jan 4 2019

CAZ102-104>106-050130-
/O.UPG.KEKA.HW.A.0001.190105T1400Z-190106T0200Z/
/O.NEW.KEKA.HW.W.0001.190105T1200Z-190106T0200Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
421 AM PST Fri Jan 4 2019

...HIGH WIND WARNING IN EFFECT FROM 4 AM TO 6 PM PST SATURDAY...

The National Weather Service in Eureka has issued a High Wind
Warning...which is in effect from 4 AM to 6 PM PST Saturday. The
High Wind Watch is no longer in effect. 

* WINDS...Southerly winds of 40 to 60 mph.

* LOCATIONS INCLUDE...Kneeland, Fickle Hill, and rural areas above
  1,500 feet. The hills surrounding Hoopa, Gasquet, Orleans, 
  Bridgeville, Dinsmore, Blocksburg and Willow Creek.

* HIGHWAY(S) IMPACTED...Highway 199, Highway 101, Highway 299, 
  Highway 36, and rural roads above 1,500 feet.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

CAZ107-108-110>113-050130-
/O.NEW.KEKA.WI.Y.0001.190105T1200Z-190106T0200Z/
Northern Trinity-Southern Trinity-Northwestern Mendocino Interior-
Northeastern Mendocino Interior-Southwestern Mendocino Interior-
Southeastern Mendocino Interior-
421 AM PST Fri Jan 4 2019

...WIND ADVISORY IN EFFECT FROM 4 AM TO 6 PM PST SATURDAY...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect from 4 AM to 6 PM PST Saturday. 

* WINDS...Southerly winds of 30 to 40 mph.

* LOCATIONS INCLUDE...Laytonville, Branscomb, Zenia, Ruth, and
  rural areas above 1,500 feet. The hills surrounding 
  Weaverville, Trinity Center, Hayfork, Burnt Ranch, Covelo, 
  Leggett, Willits, Boonville, Comptche, Ukiah, Yorkville, and 
  Hopland.

* HIGHWAY(S) IMPACTED...Highway 3, Highway 101, Highway 162,
  Highway 36, Highway 128, and rural roads above 1,500 feet.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 35 mph or greater are
expected. Winds this strong can make driving difficult,
especially for high profile vehicles. Use extra caution.

&&

$$
3 follow-up statements
162 
WWUS76 KEKA 042243
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
243 PM PST Fri Jan 4 2019

...Strong winds on Saturday...

.A strong area of low pressure and associated frontal boundary 
moving towards the area from the southwest and into southern 
Oregon. This will bring strong southeast winds to the ridges of 
the area with the strongest winds in Humboldt and Del Norte 
counties ahead of the front. Behind the front the winds will be
out of the southwest. These winds are expected to move to impact
the coastal areas in addition to the ridges. 


CAZ102-104>106-051145-
/O.CON.KEKA.HW.W.0001.190105T1200Z-190106T0200Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
243 PM PST Fri Jan 4 2019

...HIGH WIND WARNING REMAINS IN EFFECT FROM 4 AM TO 6 PM PST
SATURDAY...

* WINDS...Southeast winds 40 to 50 mph with gusts to 70 mph

* LOCATIONS INCLUDE...Kneeland, Fickle Hill, and rural areas above
  1,500 feet. This includes the hills surrounding Hoopa, Gasquet,
  Orleans, Bridgeville, Dinsmore, Blocksburg and Willow Creek.

* HIGHWAY(S) IMPACTED...Hwy 199, Hwy 299, Hwy 101 and HWY 36.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

$$

CAZ101-103-051145-
/O.EXB.KEKA.WI.Y.0001.190105T2000Z-190106T0100Z/
Coastal Del Norte-Northern Humboldt Coast-
243 PM PST Fri Jan 4 2019

...WIND ADVISORY IN EFFECT FROM NOON TO 5 PM PST SATURDAY...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect from noon to 5 PM PST Saturday. 

* WINDS...Southwest gusts to 40 to 50 mph

* LOCATIONS INCLUDE...Crescent City...Arcata...Eureka... ...
  Fortuna.

* HIGHWAY(S) IMPACTED...Hwy 101.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

$$

CAZ107-108-110>113-051145-
/O.CON.KEKA.WI.Y.0001.190105T1200Z-190106T0200Z/
Northern Trinity-Southern Trinity-Northwestern Mendocino Interior-
Northeastern Mendocino Interior-Southwestern Mendocino Interior-
Southeastern Mendocino Interior-
243 PM PST Fri Jan 4 2019

...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM TO 6 PM PST
SATURDAY...

* WINDS...Southeast winds of 30 to 40 mph with gusts to 50 mph.

* LOCATIONS INCLUDE...Laytonville, Branscomb, Zenia, Ruth, and
  rural areas above 1,500 feet. The hills surrounding 
  Weaverville, Trinity Center, Hayfork, Burnt Ranch, Covelo, 
  Leggett, Willits, Boonville, Comptche, Ukiah, Yorkville, and 
  Hopland.

* HIGHWAY(S) IMPACTED...Highway 3, Highway 101, Highway 162,
  Highway 36, Highway 128, and rural roads above 1,500 feet.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

$$
224 
WWUS76 KEKA 051122
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
322 AM PST Sat Jan 5 2019

...Strong winds on today...

.A strong area of low pressure and associated frontal boundary
will continue to move over the area from the southwest and into 
southern Oregon today. This will bring strong southeast winds to 
the ridges of the area with the strongest winds in Humboldt and 
Del Norte counties ahead of the front. Behind the front, the winds
will be out of the west to southwest. These winds are expected to
move to impact the coastal areas in addition to the ridges.

CAZ102-104>106-060030-
/O.CON.KEKA.HW.W.0001.190105T1200Z-190106T0200Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
322 AM PST Sat Jan 5 2019

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM PST THIS
EVENING...

* WINDS...Southeast winds 40 to 50 mph, with gusts up to 70 mph.

* LOCATIONS INCLUDE...Kneeland, Fickle Hill, and rural areas above
  1,500 feet. This includes the hills surrounding Hoopa, Gasquet,
  Orleans, Bridgeville, Dinsmore, Blocksburg and Willow Creek.

* HIGHWAY(S) IMPACTED...Hwy 199, Hwy 299, Hwy 101 and HWY 36.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

$$

CAZ101-103-060030-
/O.EXT.KEKA.WI.Y.0001.190105T2000Z-190106T0200Z/
Coastal Del Norte-Northern Humboldt Coast-
322 AM PST Sat Jan 5 2019

...WIND ADVISORY NOW IN EFFECT FROM NOON TODAY TO 6 PM PST THIS
EVENING...

* WINDS...West to southwest gusts to 40 to 50 mph.

* LOCATIONS INCLUDE...Crescent City, Arcata, Eureka, Orick,
  McKinleyville, and Fortuna.

* HIGHWAY(S) IMPACTED...Hwy 101.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

$$

CAZ107-108-110>113-060030-
/O.CON.KEKA.WI.Y.0001.190105T1200Z-190106T0200Z/
Northern Trinity-Southern Trinity-Northwestern Mendocino Interior-
Northeastern Mendocino Interior-Southwestern Mendocino Interior-
Southeastern Mendocino Interior-
322 AM PST Sat Jan 5 2019

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST THIS EVENING...

* WINDS...Southeast winds of 30 to 40 mph, with gusts to 50 mph.

* LOCATIONS INCLUDE...Laytonville, Branscomb, Zenia, Ruth, and
  rural areas above 1,500 feet. The hills surrounding 
  Weaverville, Trinity Center, Hayfork, Burnt Ranch, Covelo, 
  Leggett, Willits, Boonville, Comptche, Ukiah, Yorkville, and 
  Hopland.

* HIGHWAY(S) IMPACTED...Highway 3, Highway 101, Highway 162,
  Highway 36, Highway 128, and rural roads above 1,500 feet.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

$$
509 
WWUS76 KEKA 060031
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
431 PM PST Sat Jan 5 2019

...Strong winds on today...

.A strong area of low pressure and associated frontal boundary
will continue to move over the area from the southwest and into 
southern Oregon today. This will bring strong southeast winds to 
the ridges of the area with the strongest winds in Humboldt and 
Del Norte counties ahead of the front. Behind the front, the winds
will be out of the west to southwest. These winds are expected to
move to impact the coastal areas in addition to the ridges. Winds
will diminish fairly quickly this evening.

CAZ102-104>106-060200-
/O.CON.KEKA.HW.W.0001.000000T0000Z-190106T0200Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
431 PM PST Sat Jan 5 2019

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM PST THIS
EVENING...

* WINDS...Southeast winds 40 to 50 mph, with gusts up to 70 mph.

* LOCATIONS INCLUDE...Kneeland, Fickle Hill, and rural areas above
  1,500 feet. This includes the hills surrounding Hoopa, Gasquet,
  Orleans, Bridgeville, Dinsmore, Blocksburg and Willow Creek.

* HIGHWAY(S) IMPACTED...Hwy 199, Hwy 299, Hwy 101 and HWY 36.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

$$

CAZ101-103-107-108-110>113-060200-
/O.CON.KEKA.WI.Y.0001.000000T0000Z-190106T0200Z/
Coastal Del Norte-Northern Humboldt Coast-Northern Trinity-
Southern Trinity-Northwestern Mendocino Interior-
Northeastern Mendocino Interior-Southwestern Mendocino Interior-
Southeastern Mendocino Interior-
431 PM PST Sat Jan 5 2019

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST THIS EVENING...

* WINDS...West to southwest gusts to 40 to 50 mph.

* LOCATIONS INCLUDE...Crescent City, Arcata, Eureka, Orick,
  McKinleyville, and Fortuna.

* HIGHWAY(S) IMPACTED...Hwy 101.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 4, 3:05 AM PSTGale WarningEKA42 hr
Jan 4, 3:05 AM PSTHazardous Seas WarningEKA15 hr
Jan 4, 4:21 AM PSTHigh Wind WarningEKADel Norte, Humboldt38 hr
Jan 4, 4:36 AM PSTWinter Storm WarningEKAMendocino, Trinity41 hr

Nearby

Wind Advisories in California, 2019Every wind 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.