Alert archive / California / Wind Advisories in 2018

Wind Advisory 2, NWS Eureka, CA

January 16, 2018Del Norte County, California

NWS Eureka, CA issued this wind advisory at Jan 16, 2018, 2:26 AM PST for Del Norte County, California. It took effect at Jan 17, 2018, 11:00 AM PST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Jan 16, 2018, 2:26 AM PST (10:26 UTC)
In effect from
Jan 17, 2018, 11:00 AM PST
Expired
Jan 17, 2018, 7:16 PM PST
In force
8 hr
Issued by
NWS Eureka, CA

County Del Norte County, CA

The radar

The Medford radar (KMAX), 109 km from the middle of the area, began a volume at 10:26 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, 10.4 hours before the alert went out and 118 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 2018-01-16Temperature 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 2018-01-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 226 square meters per square second.19395878Sfc1 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
2154 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
226 m²/s²
0-3 km storm-relative helicity
293 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

959 
WWUS76 KEKA 161026
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
226 AM PST Tue Jan 16 2018

CAZ101-162330-
/O.NEW.KEKA.WI.Y.0002.180117T1800Z-180118T0900Z/
Coastal Del Norte-
226 AM PST Tue Jan 16 2018

...WIND ADVISORY IN EFFECT FROM 10 AM WEDNESDAY TO 1 AM PST
THURSDAY...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect from 10 AM Wednesday to 1 AM PST
Thursday. 

* WINDS...Gusts of 40 to 45 mph...strongest winds in exposed
  locations along the coast.

* LOCATIONS INCLUDE...Crescent City.

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

* 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.

&&

$$
4 follow-up statements
040 
WWUS76 KEKA 162228
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
228 PM PST Tue Jan 16 2018

CAZ101-171200-
/O.EXT.KEKA.WI.Y.0002.180117T1900Z-180118T0400Z/
Coastal Del Norte-
228 PM PST Tue Jan 16 2018

...WIND ADVISORY NOW IN EFFECT FOR CRESCENT CITY FROM 11 AM TO 8 
PM PST WEDNESDAY...

* WINDS...Sustained winds 15 to 25 mph...with locally higher gusts
  of 35 to 45 mph.

* LOCATIONS INCLUDE...Crescent City and surrounding coastal
  headlands.

* HIGHWAY IMPACTED...Portions of Hwy 101.

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

$$
838 
WWUS76 KEKA 171007
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
207 AM PST Wed Jan 17 2018

CAZ101-172315-
/O.CON.KEKA.WI.Y.0002.180117T1900Z-180118T0400Z/
Coastal Del Norte-
207 AM PST Wed Jan 17 2018

...WIND ADVISORY REMAINS IN EFFECT FOR CRESCENT CITY FROM 11 AM 
THIS MORNING TO 8 PM PST THIS EVENING...

* WINDS...Sustained winds 15 to 25 mph...with locally higher gusts
  of 35 to 45 mph.

* LOCATIONS INCLUDE...Crescent City and surrounding coastal
  headlands.

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

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

$$
161 
WWUS76 KEKA 172231
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
231 PM PST Wed Jan 17 2018


CAZ101-180400-
/O.CON.KEKA.WI.Y.0002.000000T0000Z-180118T0400Z/
Coastal Del Norte-
231 PM PST Wed Jan 17 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST THIS EVENING...

* WINDS...Sustained winds 15 to 25 mph with locally higher gusts
  to 45 mph.

* LOCATIONS INCLUDE...Crescent City and surrounding coastal
  headlands.

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

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

$$
754 
WWUS76 KEKA 180316
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
716 PM PST Wed Jan 17 2018

CAZ101-180430-
/O.CAN.KEKA.WI.Y.0002.000000T0000Z-180118T0400Z/
Coastal Del Norte-
716 PM PST Wed Jan 17 2018

...WIND ADVISORY IS CANCELLED...

The National Weather Service in Eureka has cancelled the Wind
Advisory. 

As winds at the buoys just offshore and along the coast near 
Crescent City have begun to subside the wind advisory is cancelled.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 15, 8:52 PM PSTSmall Craft AdvisoryEKA34 hr
Jan 16, 2:46 AM PSTGale WarningEKA42 hr
Jan 16, 2:46 AM PSTHazardous Seas WarningEKA3 days
Jan 16, 2:19 PM PSTWinter Storm WatchEKADel Norte, Humboldt, Trinity24 hr
Jan 16, 2:27 PM PSTHigh Surf WarningEKADel Norte, Humboldt, Mendocino56 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.