Alert archive / California / Wind Advisories in 2017

Wind Advisory 33, NWS Eureka, CA

November 12, 2017Del Norte County, Humboldt County, California

NWS Eureka, CA issued this wind advisory at Nov 12, 2017, 5:46 PM PST for Del Norte County, Humboldt County, California. It took effect at Nov 12, 2017, 7:00 PM PST. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Nov 12, 2017, 5:46 PM PST (01:46 UTC)
In effect from
Nov 12, 2017, 7:00 PM PST
Expired
Nov 13, 2017, 5:24 AM PST
In force
10 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 01:49 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, 1.8 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 2017-11-13Temperature 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°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 2017-11-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 194 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
1511 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
194 m²/s²
0-3 km storm-relative helicity
332 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

302 
WWUS76 KEKA 130146
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
546 PM PST Sun Nov 12 2017

...STRONG WINDS ABOVE 1000 FEET...

.A cold front will bring gusty south winds and rain tonight 
through tomorrow. 

CAZ102-104>106-131400-
/O.NEW.KEKA.WI.Y.0033.171113T0300Z-171113T1400Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
546 PM PST Sun Nov 12 2017

...WIND ADVISORY IN EFFECT UNTIL 6 AM PST MONDAY ABOVE
1000 FEET...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect until 6 AM PST Monday. 

* WINDS...20 to 30 mph with gusts to 50 mph expected.

* LOCATIONS INCLUDE...Kneeland.

* HIGHWAYS IMPACTED...Hwy 299 at Berry Summit...Exposed portions 
  of 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.

&&

$$
1 follow-up statement
483 
WWUS76 KEKA 131324
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
524 AM PST Mon Nov 13 2017


CAZ102-104>106-131430-
/O.CAN.KEKA.WI.Y.0033.000000T0000Z-171113T1400Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
524 AM PST Mon Nov 13 2017

...WIND ADVISORY IS CANCELLED...

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


$$

Nearby

Wind Advisories in California, 2017Every wind advisory in 2017

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.