Alert archive / California / Wind Advisories in 2017

Wind Advisory 30, NWS Eureka, CA

May 24, 2017Del Norte County, California

NWS Eureka, CA issued this wind advisory at May 24, 2017, 5:07 PM PDT for Del Norte County, California. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
May 24, 2017, 5:07 PM PDT (00:07 UTC)
Expired
May 24, 2017, 9:00 PM PDT
In force
4 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 00:07 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, 0.1 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 2017-05-25Temperature 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 2017-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 square meters per square second.193958Sfc1 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
2909 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
-22 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

536 
WWUS76 KEKA 250007
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
507 PM PDT Wed May 24 2017

CAZ101-250400-
/O.NEW.KEKA.WI.Y.0030.170525T0007Z-170525T0400Z/
Coastal Del Norte-
507 PM PDT Wed May 24 2017

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

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

* WINDS...Northerly 20 to 30 mph with gusts to 50 mph this
  evening. Winds will diminish later tonight.

* 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.

&&

$$
1 follow-up statement
733 
WWUS76 KEKA 250346
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
846 PM PDT Wed May 24 2017

CAZ101-250500-
/O.EXP.KEKA.WI.Y.0030.000000T0000Z-170525T0400Z/
Coastal Del Norte-
846 PM PDT Wed May 24 2017

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

This will be the final statement issued for this event.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 24, 8:41 PM PDTSmall Craft AdvisoryEKA21 hr
May 25, 3:03 AM PDTHazardous Seas WarningEKA15 hr

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.