Alert archive / California / Wind Advisories in 2017

Wind Advisory 28, NWS Eureka, CA

May 6, 2017Del Norte County, Humboldt County, California

NWS Eureka, CA issued this wind advisory at May 6, 2017, 4:04 PM PDT for Del Norte County, Humboldt County, California. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
May 6, 2017, 4:04 PM PDT (23:04 UTC)
Expired
May 6, 2017, 8:00 PM PDT
In force
4 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 23:02 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, 11.1 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 2017-05-06Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Medford/Jackson, OR at 12:00Z on 2017-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 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
953 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
145 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

556 
WWUS76 KEKA 062304
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
404 PM PDT Sat May 6 2017

CAZ101-103-104-070300-
/O.NEW.KEKA.WI.Y.0028.170506T2304Z-170507T0300Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
404 PM PDT Sat May 6 2017

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

* WINDS...NW to N 35 MPH with gusts to 50 MPH through early
  evening. Winds will gradually decrease later in the evening but
  remain gusts, especially along the coast.

* LOCATIONS INCLUDE...Crescent City...Arcata...Eureka...
  Fortuna...Petrolia...Honeydew... and Ettersberg.

* HIGHWAY IMPACTED...Highway 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
392 
WWUS76 KEKA 070304
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
804 PM PDT Sat May 6 2017

CAZ101-103-104-070415-
/O.EXP.KEKA.WI.Y.0028.000000T0000Z-170507T0300Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
804 PM PDT Sat May 6 2017

...WIND ADVISORY HAS EXPIRED...

The Wind Advisory has expired. However, winds will remain rather
gusty along the coast and over coastal headlands through the 
night.

$$

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.