Alert archive / California / Wind Advisories in 2018

Wind Advisory 6, NWS Eureka, CA

March 13, 2018Humboldt County, California

NWS Eureka, CA issued this wind advisory at Mar 13, 2018, 1:30 AM PDT for Humboldt County, California. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Mar 13, 2018, 1:30 AM PDT (08:30 UTC)
Expired
Mar 13, 2018, 4:00 AM PDT
In force
3 hr
Issued by
NWS Eureka, CA

County Humboldt County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 39 km from the middle of the area, began a volume at 08:31 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, 8.5 hours before the alert went out and 207 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 2018-03-13Temperature 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 2018-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.19395878Sfc1 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
2369 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
41 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

516 
WWUS76 KEKA 130830
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
130 AM PDT Tue Mar 13 2018

CAZ104>106-131100-
/O.NEW.KEKA.WI.Y.0006.180313T0830Z-180313T1100Z/
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-
130 AM PDT Tue Mar 13 2018

...WIND ADVISORY IN EFFECT UNTIL 4 AM PDT EARLY THIS MORNING...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect until 4 AM PDT early this morning. 

* WINDS...South to southeast winds 25 to 35 mph with gusts from 45
  to 55 mph.

* LOCATIONS INCLUDE...Coastal hill communities above 1000 feet in
  elevation including Kneeland...Greenwood Heights...Fickle Hill
  and Bear River.

* HIGHWAYS IMPACTED...Elevated portions of Hwy 101, Hwy 299, and 
  Hwy 36.

* 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
894 
WWUS76 KEKA 131101
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
401 AM PDT Tue Mar 13 2018



CAZ104>106-131215-
/O.EXP.KEKA.WI.Y.0006.000000T0000Z-180313T1100Z/
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-
401 AM PDT Tue Mar 13 2018

...WIND ADVISORY HAS EXPIRED...

Winds will decrease over the next hour as a cold front moves 
inland.

$$

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.