Alert archive / California / Wind Advisories in 2018

Wind Advisory 8, NWS Eureka, CA

May 11, 2018Del Norte County, California

NWS Eureka, CA issued this wind advisory at May 11, 2018, 3:19 AM PDT for Del Norte County, California. It took effect at May 11, 2018, 12:00 PM PDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
May 11, 2018, 3:19 AM PDT (10:19 UTC)
In effect from
May 11, 2018, 12:00 PM PDT
Expired
May 11, 2018, 9:00 PM PDT
In force
9 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 10:21 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, 10.3 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 2018-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 2018-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 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
1841 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

239 
WWUS76 KEKA 111019
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
319 AM PDT Fri May 11 2018

CAZ101-112330-
/O.NEW.KEKA.WI.Y.0008.180511T1900Z-180512T0400Z/
Coastal Del Norte-
319 AM PDT Fri May 11 2018

...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 9 PM PDT THIS
EVENING...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect from noon today to 9 PM PDT this
evening. 

* WINDS...Northerly increasing to 25 to 35 mph with gusts to 45
  mph this afternoon and evening.

* LOCATIONS INCLUDE...Crescent City....

* HIGHWAY 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.

&&

$$
2 follow-up statements
842 
WWUS76 KEKA 112203
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
303 PM PDT Fri May 11 2018

CAZ101-120400-
/O.CON.KEKA.WI.Y.0008.000000T0000Z-180512T0400Z/
Coastal Del Norte-
303 PM PDT Fri May 11 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING...

* WINDS...Northerly increasing to 25 to 35 mph with gusts to 45
  mph this afternoon and evening.

* 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.

$$
774 
WWUS76 KEKA 120357
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
857 PM PDT Fri May 11 2018

CAZ101-120500-
/O.EXP.KEKA.WI.Y.0008.000000T0000Z-180512T0400Z/
Coastal Del Norte-
857 PM PDT Fri May 11 2018

...WIND ADVISORY WILL EXPIRE AT 9 PM PDT THIS EVENING...



$$

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.