Alert archive / California / Wind Advisories in 2020

Wind Advisory 6, NWS Eureka, CA

November 14, 2020Del Norte County, California

NWS Eureka, CA issued this wind advisory at Nov 14, 2020, 6:00 AM PST for Del Norte County, California. It took effect at Nov 14, 2020, 8:00 PM PST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Nov 14, 2020, 6:00 AM PST (14:00 UTC)
In effect from
Nov 14, 2020, 8:00 PM PST
Expired
Nov 15, 2020, 3:46 AM PST
In force
8 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 13:59 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, 2.0 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 12:00Z on 2020-11-14Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Medford/Jackson, OR at 12:00Z on 2020-11-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 square meters per square second.1939587897117136156Sfc1 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
833 m above ground
0-6 km bulk shear
100 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
215 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

351 
WWUS76 KEKA 141400
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
600 AM PST Sat Nov 14 2020

CAZ101-102-150015-
/O.NEW.KEKA.WI.Y.0006.201115T0400Z-201115T1200Z/
Coastal Del Norte-Del Norte Interior-
600 AM PST Sat Nov 14 2020

...WIND ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 4 AM PST
SUNDAY...

* WHAT...South winds 20 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...Coastal Del Norte and Del Norte Interior Counties.

* WHEN...From 8 PM this evening to 4 AM PST Sunday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
3 follow-up statements
139 
WWUS76 KEKA 142208
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
208 PM PST Sat Nov 14 2020

CAZ101-102-150800-
/O.CON.KEKA.WI.Y.0006.201115T0400Z-201115T1200Z/
Coastal Del Norte-Del Norte Interior-
208 PM PST Sat Nov 14 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 4 AM
PST SUNDAY...

* WHAT...South winds 20 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...Exposed headlands, hilltops and mountain ridges in 
  Coastal Del Norte and Del Norte Interior Counties.

* WHEN...From 8 PM this evening to 4 AM PST Sunday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
591 
WWUS76 KEKA 150518
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
918 PM PST Sat Nov 14 2020

CAZ101-102-151200-
/O.CON.KEKA.WI.Y.0006.000000T0000Z-201115T1200Z/
Coastal Del Norte-Del Norte Interior-
918 PM PST Sat Nov 14 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST SUNDAY...

* WHAT...South winds 20 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...Exposed headlands, hilltops and mountain ridges in 
  Coastal Del Norte and Del Norte Interior Counties.

* WHEN...From 8 PM this evening to 4 AM PST Sunday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
867 
WWUS76 KEKA 151146
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
346 AM PST Sun Nov 15 2020

CAZ101-102-151300-
/O.CAN.KEKA.WI.Y.0006.000000T0000Z-201115T1200Z/
Coastal Del Norte-Del Norte Interior-
346 AM PST Sun Nov 15 2020

...WIND ADVISORY IS CANCELLED...


$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 13, 9:04 PM PSTGale WatchEKA9 hr
Nov 13, 9:04 PM PSTSmall Craft AdvisoryEKA21 hr
Nov 14, 6:29 AM PSTGale WarningEKA24 hr
Nov 14, 2:04 PM PSTFlood WatchEKADel Norte23 hr
Nov 14, 2:25 PM PSTCoastal Flood AdvisoryEKAHumboldt23 hr

Nearby

Wind Advisories in California, 2020Every wind advisory in 2020

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.