Alert archive / California / Wind Advisories in 2018

Wind Advisory 7, NWS Eureka, CA

April 6, 2018Del Norte County, Humboldt County, California

NWS Eureka, CA issued this wind advisory at Apr 6, 2018, 6:01 AM PDT for Del Norte County, Humboldt County, California. It took effect at Apr 6, 2018, 7:40 PM PDT. It was in force for 20 hr.

The area

The counties it named.

The facts

Issued
Apr 6, 2018, 6:01 AM PDT (13:01 UTC)
In effect from
Apr 6, 2018, 7:40 PM PDT
Expired
Apr 7, 2018, 3:28 PM PDT
In force
20 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 13:00 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, 1.0 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 12:00Z on 2018-04-06Temperature 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 2018-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 155 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
713 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
155 m²/s²
0-3 km storm-relative helicity
235 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

044 
WWUS76 KEKA 061301
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
601 AM PDT Fri Apr 6 2018

CAZ101-070215-
/O.NEW.KEKA.WI.Y.0007.180407T0600Z-180408T0000Z/
Coastal Del Norte-
601 AM PDT Fri Apr 6 2018

...WIND ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 5 PM PDT
SATURDAY...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect from 11 PM this evening to 5 PM PDT
Saturday. 

* WINDS...Gusts to 45 mph.

* LOCATIONS INCLUDE...Crescent City and vicinity exposed coastal
  locations.

* 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.

&&

$$
5 follow-up statements
450 
WWUS76 KEKA 062136
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
236 PM PDT Fri Apr 6 2018

CAZ101-071045-
/O.CON.KEKA.WI.Y.0007.180407T0600Z-180408T0000Z/
Coastal Del Norte-
236 PM PDT Fri Apr 6 2018

...WIND ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM PDT SATURDAY...

* WINDS...Gusts to 45 mph.

* LOCATIONS INCLUDE...Crescent City and vicinity exposed coastal
  locations.

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

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

$$
019 
WWUS76 KEKA 070238
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
738 PM PDT Fri Apr 6 2018

...Gusty southerly winds through Saturday afternoon...

.Gusty southerly winds will continue to increase ahead of a cold
front tonight. The strongest winds are expected along exposed
ridge tops and coastal headlands.

CAZ102-071545-
/O.EXB.KEKA.WI.Y.0007.180407T0238Z-180408T0000Z/
Del Norte Interior-
738 PM PDT Fri Apr 6 2018

...WIND ADVISORY IN EFFECT UNTIL 5 PM PDT SATURDAY ABOVE
1500 FEET...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect until 5 PM PDT Saturday. 

* WINDS...up to 50 mph.

* LOCATIONS INCLUDE...Exposed ridge tops.

* HIGHWAY(S) IMPACTED...Hwy 199 and rural roads above 1500 feet.

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

$$

CAZ104>106-071545-
/O.EXB.KEKA.WI.Y.0007.180407T0238Z-180407T1800Z/
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-
738 PM PDT Fri Apr 6 2018

...WIND ADVISORY IN EFFECT UNTIL 11 AM PDT SATURDAY ABOVE
1500 FEET...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect until 11 AM PDT Saturday. 

* WINDS...Gusts to 45 mph.

* LOCATIONS INCLUDE...Kneeland, Bald Hills Road, and other exposed
  ridge tops.

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

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

$$

CAZ101-071545-
/O.CON.KEKA.WI.Y.0007.180407T0600Z-180408T0000Z/
Coastal Del Norte-
738 PM PDT Fri Apr 6 2018

...WIND ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM PDT SATURDAY...

* WINDS...Gusts to 45 mph.

* LOCATIONS INCLUDE...Crescent City and vicinity exposed coastal
  locations.

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

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

$$
511 
WWUS76 KEKA 070240 CCA
NPWEKA

URGENT - WEATHER MESSAGE...CORRECTED
National Weather Service Eureka CA
740 PM PDT Fri Apr 6 2018

...Gusty southerly winds through Saturday afternoon...

.Gusty southerly winds will continue to increase ahead of a cold
front tonight. The strongest winds are expected along exposed
ridge tops and coastal headlands.

CAZ102-071545-
/O.EXB.KEKA.WI.Y.0007.180407T0240Z-180408T0000Z/
Del Norte Interior-
740 PM PDT Fri Apr 6 2018

...WIND ADVISORY IN EFFECT UNTIL 5 PM PDT SATURDAY ABOVE
1500 FEET...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect until 5 PM PDT Saturday. 

* WINDS...up to 50 mph.

* LOCATIONS INCLUDE...Exposed ridge tops.

* HIGHWAY(S) IMPACTED...Hwy 199 and rural roads above 1500 feet.

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

$$

CAZ104>106-071545-
/O.COR.KEKA.WI.Y.0007.180407T0240Z-180407T1800Z/
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-
740 PM PDT Fri Apr 6 2018

...WIND ADVISORY IN EFFECT UNTIL 11 AM PDT SATURDAY ABOVE
1500 FEET...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect until 11 AM PDT Saturday. 

* WINDS...Gusts to 45 mph.

* LOCATIONS INCLUDE...Kneeland, Bald Hills Road, and other exposed
  ridge tops.

* HIGHWAYS IMPACTED...Hwy 101...Hwy 299...HWY 36.

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

$$

CAZ101-071545-
/O.COR.KEKA.WI.Y.0007.180407T0600Z-180408T0000Z/
Coastal Del Norte-
740 PM PDT Fri Apr 6 2018

...WIND ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM PDT SATURDAY...

* WINDS...Gusts to 45 mph.

* LOCATIONS INCLUDE...Crescent City and vicinity exposed coastal
  locations.

* HIGHWAY IMPACTED...Hwy 101.

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

$$
256 
WWUS76 KEKA 070909
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
209 AM PDT Sat Apr 7 2018

...Gusty southerly winds through Saturday afternoon...

.Gusty southerly winds will continue to increase ahead of a cold
front tonight. The strongest winds are expected along exposed
ridge tops and coastal headlands.

CAZ101-072215-
/O.EXT.KEKA.WI.Y.0007.000000T0000Z-180408T0200Z/
Coastal Del Norte-
209 AM PDT Sat Apr 7 2018

...WIND ADVISORY NOW IN EFFECT UNTIL 7 PM PDT THIS EVENING...

* WINDS...gusts to 45 mph.

* LOCATIONS INCLUDE...Crescent City and vicinity exposed coastal
  locations.

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

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

$$

CAZ102-072215-
/O.EXT.KEKA.WI.Y.0007.000000T0000Z-180408T0200Z/
Del Norte Interior-
209 AM PDT Sat Apr 7 2018

...WIND ADVISORY NOW IN EFFECT UNTIL 7 PM PDT THIS EVENING ABOVE
1500 FEET...

* WINDS...up to 50 mph.

* LOCATIONS INCLUDE...Exposed ridge tops.

* HIGHWAY(S) IMPACTED...Hwy 199 and rural roads above 1500 feet.

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

$$

CAZ104>106-071800-
/O.CON.KEKA.WI.Y.0007.000000T0000Z-180407T1800Z/
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-
209 AM PDT Sat Apr 7 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT THIS MORNING
ABOVE 1500 FEET...

* WINDS...Gusts to 45 mph.

* LOCATIONS INCLUDE...Kneeland, Bald Hills Road, and other exposed
  ridge tops.

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

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

$$
640 
WWUS76 KEKA 072228
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
328 PM PDT Sat Apr 7 2018

CAZ101-102-072330-
/O.CAN.KEKA.WI.Y.0007.000000T0000Z-180408T0200Z/
Coastal Del Norte-Del Norte Interior-
328 PM PDT Sat Apr 7 2018

...WIND ADVISORY IS CANCELLED...

The National Weather Service in Eureka has cancelled the Wind
Advisory. Gusty southerly winds below advisory criteria will be
possible through this evening.   

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 6, 8:40 AM PDTRiver Flood WarningEKAMendocino36 hr
Apr 6, 8:56 AM PDTRiver Flood AdvisoryEKAMendocino36 hr
Apr 6, 11:01 AM PDTAreal Flood AdvisoryEKAMendocino3 hr
Apr 6, 2:01 PM PDTAreal Flood AdvisoryEKAMendocino2 hr
Apr 6, 2:32 PM PDTGale WarningEKA18 hr
Apr 6, 4:09 PM PDTAreal Flood AdvisoryEKAMendocino14 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.