Alert archive / California / Wind Advisories in 2019

Wind Advisory 19, NWS Eureka, CA

December 4, 2019Del Norte County, Humboldt County, California

NWS Eureka, CA issued this wind advisory at Dec 4, 2019, 2:16 PM PST for Del Norte County, Humboldt County, California. It took effect at Dec 5, 2019, 10:00 PM PST. It was in force for 29 hr.

The area

The counties it named.

The facts

Issued
Dec 4, 2019, 2:16 PM PST (22:16 UTC)
In effect from
Dec 5, 2019, 10:00 PM PST
Expired
Dec 7, 2019, 3:25 AM PST
In force
29 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 22:17 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, 10.3 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 2019-12-04Temperature 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 2019-12-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 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
740 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

579 
WWUS76 KEKA 042216
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
216 PM PST Wed Dec 4 2019

CAZ102-104>106-050630-
/O.NEW.KEKA.WI.Y.0019.191206T0600Z-191206T2000Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
216 PM PST Wed Dec 4 2019

...WIND ADVISORY IN EFFECT FROM 10 PM THURSDAY TO NOON PST FRIDAY
ABOVE 1500 FEET...

* WHAT...Southeast winds 20 to 35 mph with gusts up to 55 mph 
  expected above 1500 feet.

* WHERE...Del Norte Interior, Humboldt Interior, and Southwestern
  Humboldt.

* WHEN...From 10 PM Thursday to noon PST Friday.

* 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.

&&

$$
11 follow-up statements
571 
WWUS76 KEKA 050612
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
1012 PM PST Wed Dec 4 2019

CAZ102-104>106-051200-
/O.CON.KEKA.WI.Y.0019.191206T0600Z-191206T2000Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
1012 PM PST Wed Dec 4 2019

...WIND ADVISORY REMAINS IN EFFECT FROM 10 PM THURSDAY TO NOON
PST FRIDAY ABOVE 1500 FEET...

* WHAT...Southeast winds 20 to 35 mph with gusts up to 55 mph 
  expected above 1500 feet.

* WHERE...Del Norte Interior, Humboldt Interior, and 
  Southwestern Humboldt.

* WHEN...From 10 PM Thursday to noon PST Friday.

* 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.

&&

$$
075 
WWUS76 KEKA 051154
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
354 AM PST Thu Dec 5 2019

CAZ102-104>106-052000-
/O.CON.KEKA.WI.Y.0019.191206T0600Z-191206T2000Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
354 AM PST Thu Dec 5 2019

...WIND ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
NOON PST FRIDAY ABOVE 1500 FEET...

* WHAT...South to Southeast winds 20 to 35 mph with gusts from 45
  to 50 mph expected above 1,500 feet. Strongest gusts will be 
  across the most exposed ridges.

* WHERE...Del Norte Interior, Humboldt Interior, and 
  Southwestern Humboldt.

* WHEN...From 10 PM Thursday to noon PST Friday.

* 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.

&&

$$
380 
WWUS76 KEKA 051957
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
1157 AM PST Thu Dec 5 2019

CAZ102-104>106-060500-
/O.CON.KEKA.WI.Y.0019.191206T0600Z-191206T2000Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
1157 AM PST Thu Dec 5 2019

...WIND ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
NOON PST FRIDAY ABOVE 1500 FEET...

* WHAT...South to Southeast winds 20 to 35 mph with gusts from 
  45 to 50 mph expected above 1,500 feet. Strongest gusts will 
  be across the most exposed ridges.

* WHERE...Del Norte Interior, Humboldt Interior, and 
  Southwestern Humboldt.

* WHEN...From 10 PM Thursday to noon PST Friday.

* 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.

&&

$$
396 
WWUS76 KEKA 060514
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
914 PM PST Thu Dec 5 2019

CAZ102-104>106-061230-
/O.CON.KEKA.WI.Y.0019.191206T0600Z-191206T2000Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
914 PM PST Thu Dec 5 2019

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST FRIDAY ABOVE
1500 FEET...

* WHAT...South to Southeast winds 20 to 35 mph with gusts from 
  45 to 50 mph expected above 1,500 feet. Strongest gusts will 
  be across the most exposed ridges.

* WHERE...Del Norte Interior, Humboldt Interior, and 
  Southwestern Humboldt.

* WHEN...From 10 PM Thursday to noon PST Friday.

* 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.

&&

$$
767 
WWUS76 KEKA 061154
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
354 AM PST Fri Dec 6 2019

CAZ102-104>106-061800-
/O.CON.KEKA.WI.Y.0019.000000T0000Z-191206T2000Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
354 AM PST Fri Dec 6 2019

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY ABOVE
1500 FEET...

* WHAT...South to Southeast winds 20 to 35 mph with gusts from 
  45 to 50 mph expected above 1,500 feet. Strongest gusts will 
  be across the most exposed ridges. 

* WHERE...Del Norte Interior, Humboldt Interior, and 
  Southwestern Humboldt.

* WHEN...Until noon PST today. Some locally strong wind gusts 
  will continue into tonight, but should be mainly below 45 mph. 

* 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.

&&

$$
943 
WWUS76 KEKA 061808
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
1008 AM PST Fri Dec 6 2019

CAZ102-104>106-062000-
/O.CON.KEKA.WI.Y.0019.000000T0000Z-191206T2000Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
1008 AM PST Fri Dec 6 2019

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY ABOVE
1500 FEET...

* WHAT...South to Southeast winds 20 to 35 mph with gusts from 
  45 to 50 mph expected above 1,500 feet. Strongest gusts will 
  be across the most exposed ridges.

* WHERE...Del Norte Interior, Humboldt Interior, and 
  Southwestern Humboldt.

* WHEN...Until noon PST today. Some locally strong wind gusts 
  will continue into tonight, but should be mainly below 45 mph.

* 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.

&&

$$
482 
WWUS76 KEKA 061959
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
1159 AM PST Fri Dec 6 2019

CAZ102-104>106-070800-
/O.EXT.KEKA.WI.Y.0019.000000T0000Z-191207T0800Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
1159 AM PST Fri Dec 6 2019

...WIND ADVISORY NOW IN EFFECT UNTIL MIDNIGHT PST TONIGHT ABOVE
1500 FEET...

* WHAT...South to Southeast winds 20 to 30 mph with gusts from 
  45 to 50 mph expected above 1,500 feet. Strongest gusts will 
  be across the most exposed ridges.

* WHERE...Del Norte Interior, Humboldt Interior, and 
  Southwestern Humboldt.

* WHEN...Until midnight PST tonight.

* 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.

&&

$$
256 
WWUS76 KEKA 062228
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
228 PM PST Fri Dec 6 2019

CAZ102-062330-
/O.CAN.KEKA.WI.Y.0019.000000T0000Z-191207T0800Z/
Del Norte Interior-
228 PM PST Fri Dec 6 2019

...WIND ADVISORY IS CANCELLED...

Gusty southeast winds as high as 30 mph will continue through this
evening, but winds are expected to remain well below advisory
criteria.

$$

CAZ104>106-070800-
/O.CON.KEKA.WI.Y.0019.000000T0000Z-191207T0800Z/
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-
228 PM PST Fri Dec 6 2019

...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PST TONIGHT
ABOVE 1500 FEET...

* WHAT...South to Southeast winds 20 to 30 mph with gusts from 
  45 to 50 mph expected above 1,500 feet. Strongest gusts will 
  be across the most exposed ridges.

* WHERE...Del Norte Interior, Humboldt Interior, and 
  Southwestern Humboldt.

* WHEN...Until midnight PST tonight.

* 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.

&&

$$
932 
WWUS76 KEKA 062249 CCA
NPWEKA

URGENT - WEATHER MESSAGE...CORRECTED
National Weather Service Eureka CA
249 PM PST Fri Dec 6 2019

CAZ102-062330-
/O.CAN.KEKA.WI.Y.0019.000000T0000Z-191207T0800Z/
Del Norte Interior-
249 PM PST Fri Dec 6 2019

...WIND ADVISORY IS CANCELLED...

Gusty southeast winds as high as 30 mph will continue through this
evening, but winds are expected to remain well below advisory
criteria.

$$

CAZ104>106-070800-
/O.COR.KEKA.WI.Y.0019.000000T0000Z-191207T0800Z/
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-
249 PM PST Fri Dec 6 2019

...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PST TONIGHT
ABOVE 1500 FEET...

* WHAT...South to Southeast winds 20 to 30 mph with gusts from 
  45 to 50 mph expected above 1,500 feet. Strongest gusts will 
  be across the most exposed ridges.

* WHERE...Humboldt Interior, and Southwestern Humboldt.

* WHEN...Until midnight PST tonight.

* 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.

&&

$$
823 
WWUS76 KEKA 070550
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
950 PM PST Fri Dec 6 2019

CAZ104>106-071200-
/O.EXT.KEKA.WI.Y.0019.000000T0000Z-191207T1200Z/
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-
950 PM PST Fri Dec 6 2019

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY ABOVE 
1500 FEET...

* WHAT...South to Southeast gusts from 45 to 50 mph expected 
  above 1,500 feet. Strongest gusts will be across the most 
  exposed ridges.

* WHERE...Humboldt Interior, and Southwestern Humboldt.

* WHEN...Until 4 AM PST Saturday.

* 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.

&&

$$
850 
WWUS76 KEKA 071125
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
325 AM PST Sat Dec 7 2019

CAZ104>106-071230-
/O.CAN.KEKA.WI.Y.0019.000000T0000Z-191207T1200Z/
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-
325 AM PST Sat Dec 7 2019

...WIND ADVISORY IS CANCELLED...

While some localized wind gusts over 40 mph will continue across
some of the exposed coastal ridgetops today, the threat for more
widespread advisory level winds has diminished. 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 4, 2:30 AM PSTGale WarningEKA66 hr
Dec 4, 2:30 AM PSTSmall Craft AdvisoryEKA4 days

Nearby

Wind Advisories in California, 2019Every wind advisory in 2019

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.