Alert archive / California / High Wind Watches in 2019

High Wind Watch 3, NWS Eureka, CA

November 24, 20194 counties in California

NWS Eureka, CA issued this high wind watch at Nov 24, 2019, 1:23 PM PST for 4 counties in California. It took effect at Nov 26, 2019, 1:00 PM PST. It was in force for .

The area

The counties it named.

The facts

Issued
Nov 24, 2019, 1:23 PM PST (21:23 UTC)
In effect from
Nov 26, 2019, 1:00 PM PST
Expired
Nov 25, 2019, 10:22 AM PST
In force
Issued by
NWS Eureka, CA

Counties Del Norte County, CA, Humboldt County, CA, Mendocino County, CA, Trinity County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 60 km from the middle of the area, began a volume at 21:25 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, 9.4 hours before the alert went out and 204 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 2019-11-24Temperature 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 2019-11-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 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
960 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
48 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

043 
WWUS76 KEKA 242123
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
123 PM PST Sun Nov 24 2019

CAZ101-103-104-250530-
/O.NEW.KEKA.HW.A.0003.191126T2100Z-191127T1200Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
123 PM PST Sun Nov 24 2019

...HIGH WIND WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE
TUESDAY NIGHT...

* WHAT...Sustained winds veering from south to northwest 30 to 40
  mph with gusts up to 55 mph possible. Taller ridges in the King
  Range may see gusts to 80 mph.

* WHERE...Coastal Del Norte, Coastal Humboldt, and Southwestern 
  Humboldt Counties.

* WHEN...From Tuesday afternoon through late Tuesday night.

* IMPACTS...Damaging winds could blow down trees and power lines.
  Widespread power outages are possible. Travel could be
  difficult, especially for high profile vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

CAZ102-105-106-250530-
/O.NEW.KEKA.HW.A.0003.191126T2100Z-191127T1200Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-
123 PM PST Sun Nov 24 2019

...HIGH WIND WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE
TUESDAY NIGHT...

* WHAT...Sustained winds veering from south to northwest 30 to 45
  mph with gusts up to 70 mph possible, primarily above valley
  floors and near mountain passes. Some of the tallest peaks may 
  see gusts to 80 mph.
 
* WHERE...Del Norte Interior, Northern Humboldt Interior and 
  Southern Humboldt Interior Counties.

* WHEN...From Tuesday afternoon through late Tuesday night.

* IMPACTS...Damaging winds could blow down trees and power lines.
  Widespread power outages are possible. Travel could be
  difficult, especially for high profile vehicles. This will be
  compounded by the presence of moderate to heavy snow at mountain
  passes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

CAZ109-112-250530-
/O.NEW.KEKA.HW.A.0003.191127T0000Z-191127T1200Z/
Mendocino Coast-Southwestern Mendocino Interior-
123 PM PST Sun Nov 24 2019

...HIGH WIND WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE
TUESDAY NIGHT...

* WHAT...Sustained winds veering from south to northwest 25 to 35
  mph with gusts up to 55 mph possible.

* WHERE...Mendocino Coast and Southwestern Mendocino Interior 
  Counties.

* WHEN...From Tuesday afternoon through late Tuesday night.

* IMPACTS...Damaging winds could blow down trees and power lines.
  Widespread power outages are possible. Travel could be
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

CAZ107-108-110-111-113-250530-
/O.NEW.KEKA.HW.A.0003.191127T0000Z-191127T1200Z/
Northern Trinity-Southern Trinity-Northwestern Mendocino Interior-
Northeastern Mendocino Interior-Southeastern Mendocino Interior-
123 PM PST Sun Nov 24 2019

...HIGH WIND WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE
TUESDAY NIGHT...

* WHAT...Sustained winds veering from south to west 25 to 35 mph
  with gusts up to 55 mph possible, primarily above valley
  floors and near mountain passes. Some of the tallest peaks 
  may see gusts to 70 mph.

* WHERE...Northern Trinity, Southern Trinity, Northwestern 
  Mendocino Interior, Northeastern Mendocino Interior and 
  Southeastern Mendocino Interior Counties.

* WHEN...From Tuesday afternoon through late Tuesday night.

* IMPACTS...Damaging winds could blow down trees and power lines.
  Widespread power outages are possible. Travel could be
  difficult, especially for high profile vehicles. This will be
  compounded by the presence of moderate to heavy snow at 
  mountain passes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$
4 follow-up statements
199 
WWUS76 KEKA 250419
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
819 PM PST Sun Nov 24 2019

CAZ107>113-251230-
/O.EXT.KEKA.HW.A.0003.191126T2100Z-191127T1200Z/
Northern Trinity-Southern Trinity-Mendocino Coast-
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
Southwestern Mendocino Interior-Southeastern Mendocino Interior-
819 PM PST Sun Nov 24 2019

...HIGH WIND WATCH NOW IN EFFECT FROM TUESDAY AFTERNOON THROUGH
LATE TUESDAY NIGHT...

* WHAT...Sustained winds veering from south to northwest 25 to 35
  mph with gusts up to 60 mph possible.

* WHERE...Portions of Trinity and Mendocino Counties.

* WHEN...From Tuesday afternoon through late Tuesday night.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

CAZ101>106-251230-
/O.CON.KEKA.HW.A.0003.191126T2100Z-191127T1200Z/
Coastal Del Norte-Del Norte Interior-Northern Humboldt Coast-
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-
819 PM PST Sun Nov 24 2019

...HIGH WIND WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON
THROUGH LATE TUESDAY NIGHT...

* WHAT...Sustained winds veering from south to northwest 25 to 35
  mph with gusts to 60 mph.

* WHERE...Portions of Del Norte and Humboldt Counties.

* WHEN...From Tuesday afternoon through late Tuesday night.

* IMPACTS...Damaging winds could blow down trees and power lines.
  Widespread power outages are possible. Travel could be
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$
888 
WWUS76 KEKA 250420
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
820 PM PST Sun Nov 24 2019

CAZ101>113-251230-
/O.CON.KEKA.HW.A.0003.191126T2100Z-191127T1200Z/
Coastal Del Norte-Del Norte Interior-Northern Humboldt Coast-
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
Mendocino Coast-Northwestern Mendocino Interior-
Northeastern Mendocino Interior-Southwestern Mendocino Interior-
Southeastern Mendocino Interior-
820 PM PST Sun Nov 24 2019

...HIGH WIND WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON
THROUGH LATE TUESDAY NIGHT...

* WHAT...Sustained winds veering from south to northwest 25 to 35
  mph with gusts from 60 to 70 mph possible.

* WHERE...Portions of Del Norte, Humboldt, Trinity and Mendocino
  Counties.

* WHEN...From Tuesday afternoon through late Tuesday night.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$
455 
WWUS76 KEKA 251151
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
351 AM PST Mon Nov 25 2019

CAZ101-102-252000-
/O.UPG.KEKA.HW.A.0003.191126T2100Z-191127T1200Z/
/O.NEW.KEKA.HW.W.0003.191126T2100Z-191127T1200Z/
Coastal Del Norte-Del Norte Interior-
351 AM PST Mon Nov 25 2019

...HIGH WIND WARNING IN EFFECT FROM 1 PM TUESDAY TO 4 AM PST
WEDNESDAY...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph 
  expected.

* WHERE...Coastal Del Norte and Del Norte Interior Counties.
  Strongest near the coast and over exposed ridges.

* WHEN...From 1 PM Tuesday to 4 AM PST Wednesday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ112-113-252000-
/O.UPG.KEKA.HW.A.0003.191126T2100Z-191127T1200Z/
/O.NEW.KEKA.WI.Y.0017.191126T2100Z-191127T1100Z/
Southwestern Mendocino Interior-Southeastern Mendocino Interior-
351 AM PST Mon Nov 25 2019

...WIND ADVISORY IN EFFECT FROM 1 PM TUESDAY TO 3 AM PST
WEDNESDAY ABOVE 1500 FEET...

* WHAT...Southwest winds 25 to 35 mph with gusts up to 45 mph 
  expected above 1500 feet.

* WHERE...Southwestern Mendocino Interior and Southeastern
  Mendocino Interior Counties. This the summits of Highway 253 
  and Highway 128.

* WHEN...From 1 PM Tuesday to 3 AM PST Wednesday.

* 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.

&&

$$

CAZ103>111-252000-
/O.CON.KEKA.HW.A.0003.191126T2100Z-191127T1200Z/
Northern Humboldt Coast-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-Mendocino Coast-
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
351 AM PST Mon Nov 25 2019

...HIGH WIND WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON
THROUGH LATE TUESDAY NIGHT...

* WHAT...Sustained winds veering from south to northwest 25 to 
  35 mph with gusts from 50 to 70 mph possible.

* WHERE...Portions of Humboldt, Trinity and Mendocino Counties.
  Strongest winds will be on the ridges and near the coast. 

* WHEN...From Tuesday afternoon through late Tuesday night.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$
925 
WWUS76 KEKA 251822
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
1022 AM PST Mon Nov 25 2019

CAZ103>106-108-110-111-260230-
/O.UPG.KEKA.HW.A.0003.191126T2100Z-191127T1200Z/
/O.EXA.KEKA.HW.W.0003.191126T2100Z-191127T1200Z/
Northern Humboldt Coast-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Southern Trinity-Northwestern Mendocino Interior-
Northeastern Mendocino Interior-
1022 AM PST Mon Nov 25 2019

...HIGH WIND WARNING IN EFFECT FROM 1 PM TUESDAY TO 4 AM PST
WEDNESDAY...

* WHAT...South winds veering to northwest, sustained 25 to 40 mph,
  gusts between 50 and 70 mph. Strongest gusts are expected along
  ridges and mountain passes, but gusts between 50 and 60 mph
  possible even in coastal areas that are typically sheltered.
 
* WHERE...Coastal low elevations, and interior high elevations of
  Humboldt county, plus interior high elevations of southern
  Trinity and northern Mendocino counties. This includes summits
  along Highway 101, 36 and 299, and the Humboldt Bay area.
 
* WHEN...From 1 PM Tuesday to 4 AM PST Wednesday.

* IMPACTS...Damaging winds could blow down trees and power lines.
  Widespread power outages are possible. Travel could be
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ101-102-260230-
/O.CON.KEKA.HW.W.0003.191126T2100Z-191127T1200Z/
Coastal Del Norte-Del Norte Interior-
1022 AM PST Mon Nov 25 2019

...HIGH WIND WARNING REMAINS IN EFFECT FROM 1 PM TUESDAY TO 4 AM
PST WEDNESDAY...

* WHAT...Southwest winds 35 to 45 mph with gusts between 55 and 75
  mph expected. Strongest gusts are expected along ridges and
  mountain passes, but gusts between 55 and 65 mph possible even
  on the coast. This includes summits along Highway 101.

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

* WHEN...From 1 PM Tuesday to 4 AM PST Wednesday.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Widespread power outages are possible. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ107-109-260230-
/O.UPG.KEKA.HW.A.0003.191126T2100Z-191127T1200Z/
/O.EXB.KEKA.WI.Y.0017.191126T2100Z-191127T1200Z/
Northern Trinity-Mendocino Coast-
1022 AM PST Mon Nov 25 2019

...WIND ADVISORY IN EFFECT FROM 1 PM TUESDAY TO 4 AM PST
WEDNESDAY...

* WHAT...Sustained winds veering from south to northwest 25 to 35
  mph with gusts from 40 to 50 mph possible.

* WHERE...High elevations of Northern Trinity County, and along
  the Mendocino Coast. This includes summits along Highway 3 and
  299.

* WHEN...From 1 PM Tuesday to 4 AM PST Wednesday.

* IMPACTS...Damaging winds could blow down trees and power lines.
  Widespread power outages are possible. Travel could be
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ112-113-260230-
/O.EXT.KEKA.WI.Y.0017.191126T2100Z-191127T1200Z/
Southwestern Mendocino Interior-Southeastern Mendocino Interior-
1022 AM PST Mon Nov 25 2019

...WIND ADVISORY NOW IN EFFECT FROM 1 PM TUESDAY TO 4 AM PST
WEDNESDAY...

* WHAT...Southwest winds 25 to 35 mph with gusts between 40 and 50 
  mph expected above 1500 feet.

* WHERE...Southwestern Mendocino Interior and Southeastern
  Mendocino Interior Counties. This includes the summits of 
  Highway 253 and Highway 128.

* WHEN...From 1 PM Tuesday to 4 AM PST Wednesday.

* 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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 23, 9:18 PM PSTGale WatchEKA6 hr
Nov 24, 3:12 AM PSTGale WarningEKA30 hr
Nov 24, 2:37 PM PSTGale WatchEKA18 hr
Nov 24, 2:37 PM PSTStorm WatchEKA18 hr

Nearby

High Wind Watches in California, 2019Every high wind watch 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.