Alert archive / California / Wind Advisories in 2018

Wind Advisory 11, NWS Eureka, CA

November 22, 2018Del Norte County, Humboldt County, California

NWS Eureka, CA issued this wind advisory at Nov 22, 2018, 3:06 AM PST for Del Norte County, Humboldt County, California. It took effect at Nov 22, 2018, 10:00 AM PST. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Nov 22, 2018, 3:06 AM PST (11:06 UTC)
In effect from
Nov 22, 2018, 10:00 AM PST
Expired
Nov 22, 2018, 5:00 PM PST
In force
7 hr
Issued by
NWS Eureka, CA

Counties Del Norte County, CA, Humboldt County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 86 km from the middle of the area, began a volume at 11:12 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, 11.1 hours before the alert went out and 158 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 2018-11-22Temperature 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 00:00Z on 2018-11-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 103 square meters per square second.1939587897Sfc1 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
882 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
103 m²/s²
0-3 km storm-relative helicity
150 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

354 
WWUS76 KEKA 221106
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
306 AM PST Thu Nov 22 2018


CAZ103-109-110-112-221215-
/O.CAN.KEKA.HW.A.0001.181122T1500Z-181124T0000Z/
Northern Humboldt Coast-Mendocino Coast-
Northwestern Mendocino Interior-Southwestern Mendocino Interior-
306 AM PST Thu Nov 22 2018

...HIGH WIND WATCH IS CANCELLED...

The National Weather Service in Eureka has cancelled the High
Wind Watch. 

$$

CAZ101-102-104>106-230045-
/O.UPG.KEKA.HW.A.0001.181122T1500Z-181124T0000Z/
/O.NEW.KEKA.WI.Y.0011.181122T1800Z-181123T0100Z/
Coastal Del Norte-Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
306 AM PST Thu Nov 22 2018

...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 5 PM PST
THIS AFTERNOON...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect from 10 AM this morning to 5 PM PST
this afternoon. The High Wind Watch is no longer in effect. 

* WINDS...South winds 25 to 35 mph with gusts to around 50 mph.
  Isolated gusts around 60 mph possible across exposed ridge tops.

* LOCATIONS INCLUDE...Crescent City...Kneeland and other exposed
  locations above 1000 feet.  

* HIGHWAY(S) IMPACTED...Hwy 101...Hwy 199...Hwy 299...HWY 96...
  HWY 36.

* 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.

&&

$$
2 follow-up statements
971 
WWUS76 KEKA 222328
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
328 PM PST Thu Nov 22 2018

.Winds will ease quickly this afternoon and this evening around
Crescent City and the adjacent exposed elevations above 1000 ft
around far northwestern California. Meanwhile, another storm
system arriving tonight will bring more gusty southerly winds on 
Friday morning to similar locations.

CAZ101-102-105-231230-
/O.NEW.KEKA.WI.Y.0012.181123T1200Z-181124T2000Z/
/O.CON.KEKA.WI.Y.0011.000000T0000Z-181123T0100Z/
Coastal Del Norte-Del Norte Interior-Northern Humboldt Interior-
328 PM PST Thu Nov 22 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM PST THIS
AFTERNOON...
...WIND ADVISORY IN EFFECT FROM 4 AM FRIDAY TO NOON PST
SATURDAY...

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

* WINDS...South winds 25 to 35 mph with gusts up to 50 mph. 
  Isolated gusts around 60 mph possible across exposed ridge tops.

* LOCATIONS INCLUDE...Kneeland and other exposed locations above
  1000 feet elevation. 

* HIGHWAY(S) IMPACTED...Exposed portions of Hwy 101...Hwy 
  199...Hwy 299...HWY 96 above 1000 ft elevation.

* 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.

&&

$$

CAZ104-106-230100-
/O.CON.KEKA.WI.Y.0011.000000T0000Z-181123T0100Z/
Southwestern Humboldt-Southern Humboldt Interior-
328 PM PST Thu Nov 22 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM PST THIS
AFTERNOON FOR EXPOSED LOCATIONS ABOVE 1000 FEET...

* WINDS...South winds 25 to 35 mph with gusts up to 50 mph. 
  Isolated gusts around 60 mph possible across exposed ridge tops.

* LOCATIONS INCLUDE...Exposed ridges and higher exposed terrain
  above 1000 ft elevation.

* HIGHWAY(S) IMPACTED...Exposed portions of HWY 101...HWY 36.

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

$$
678 
WWUS76 KEKA 230105
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
505 PM PST Thu Nov 22 2018

.Winds will ease quickly this afternoon and this evening around
Crescent City and the adjacent exposed elevations above 1000 ft
around far northwestern California. Meanwhile, another storm
system arriving tonight will bring more gusty southerly winds on
Friday morning to similar locations.

CAZ101-102-105-231415-
/O.EXP.KEKA.WI.Y.0011.000000T0000Z-181123T0100Z/
/O.CON.KEKA.WI.Y.0012.181123T1200Z-181124T2000Z/
Coastal Del Norte-Del Norte Interior-Northern Humboldt Interior-
505 PM PST Thu Nov 22 2018

...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM FRIDAY TO NOON PST
SATURDAY...
...WIND ADVISORY FOR THURSDAY HAS EXPIRED...

* WINDS...Decreasing Thursday evening and overnight...but
  increasing to South 25 to 35 mph with gusts up to 50 mph Friday
  morning through Saturday morning. Isolated gusts around 60 mph 
  possible across exposed ridge tops.

* LOCATIONS INCLUDE...Kneeland and other exposed locations above
  1000 feet elevation. 

* HIGHWAY(S) IMPACTED...Exposed portions of Hwy 101...Hwy 
  199...Hwy 299...HWY 96 above 1000 ft elevation.

* 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.

&&

$$

CAZ104-106-230215-
/O.EXP.KEKA.WI.Y.0011.000000T0000Z-181123T0100Z/
Southwestern Humboldt-Southern Humboldt Interior-
505 PM PST Thu Nov 22 2018

...WIND ADVISORY HAS EXPIRED...

Wind speeds have decreased substantially, allowing the wind
advisory to expire.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 22, 2:58 PM PSTSmall Craft AdvisoryEKA46 hr
Nov 22, 3:28 PM PSTWind AdvisoryEKADel Norte, Humboldt21 hr

Nearby

Wind Advisories in California, 2018Every wind advisory in 2018

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.