Alert archive / California / High Wind Watches in 2017

High Wind Watch 5, NWS Eureka, CA

February 19, 2017Humboldt County, Mendocino County, Trinity County, California

NWS Eureka, CA issued this high wind watch at Feb 19, 2017, 4:06 PM PST for Humboldt County, Mendocino County, Trinity County, California. It took effect at Feb 20, 2017, 4:00 PM PST. It was in force for .

The area

The counties it named.

The facts

Issued
Feb 19, 2017, 4:06 PM PST (00:06 UTC)
In effect from
Feb 20, 2017, 4:00 PM PST
Expired
Feb 20, 2017, 3:40 PM PST
In force
Issued by
NWS Eureka, CA

Counties Humboldt County, CA, Mendocino County, CA, Trinity County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 73 km from the middle of the area, began a volume at 00:09 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, 0.1 hours before the alert went out and 241 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 2017-02-20Temperature 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 00:00Z on 2017-02-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 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
756 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
428 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

118 
WWUS76 KEKA 200006
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
406 PM PST Sun Feb 19 2017

.A series of storm systems will bring increasing southerly winds
to the area tonight and again late Monday afternoon and Monday 
night.

CAZ104>106-201315-
/O.NEW.KEKA.WI.Y.0017.170220T0300Z-170220T1500Z/
/O.NEW.KEKA.HW.A.0005.170221T0000Z-170221T1200Z/
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-
406 PM PST Sun Feb 19 2017

...WIND ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 7 AM 
MONDAY...
...HIGH WIND WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH LATE 
MONDAY NIGHT...

* WINDS...South winds increasing to 25 to 35 mph with gusts to 45
  to 60 mph over exposed coastal headlands and higher inland
  ridges tonight. After a brief lull during the middle of the day
  Monday, south winds will increase again late Monday and Monday night
  with speeds of 30 to 40 mph and gusts to 50 to 70 mph over 
  exposed coastal headlands and higher inland ridges.

* LOCATIONS INCLUDE...Ridges near Petrolia, Honeydew, Ettersberg,
  Willow Creek, Orleans, Garberville, and Bridgeville.

* HIGHWAYS IMPACTED...Higher elevations of 101, 299, 96, and 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 are expected. Winds
this strong can make driving difficult,especially for high
profile vehicles. Use extra caution.

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph,or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

$$

CAZ101>103-201315-
/O.NEW.KEKA.WI.Y.0017.170220T0300Z-170220T1500Z/
Coastal Del Norte-Del Norte Interior-Northern Humboldt Coast-
406 PM PST Sun Feb 19 2017

...WIND ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 7 AM 
MONDAY...

* WINDS...South winds increasing to 20 to 30 mph with gusts to 40
  to 50 mph over exposed coastal headlands and inland ridges 
  tonight. Stronger winds are possible late Monday and Monday 
  night.

* LOCATIONS INCLUDE...Crescent City and Gasquet.

* HIGHWAYS IMPACTED...101 and 199.

* 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 are expected. Winds
this strong can make driving difficult,especially for high
profile vehicles. Use extra caution.

$$

CAZ107>111-113-201315-
/O.NEW.KEKA.HW.A.0005.170221T0000Z-170221T1200Z/
Northern Trinity-Southern Trinity-Mendocino Coast-
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
Southeastern Mendocino Interior-
406 PM PST Sun Feb 19 2017

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

* WINDS...South winds will increase late Monday and Monday night 
  with speeds of 30 to 40 mph and gusts to 50 to 70 mph over 
  exposed coastal headlands and higher inland ridges.

* LOCATIONS INCLUDE...Ridges near Burnt Ranch, Hayfork, Ruth,Point
  Arena, Legget, Laytonville, and Covelo.

* HIGHWAYS IMPACTED...101, 3, and 162.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph,or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

$$
4 follow-up statements
983 
WWUS76 KEKA 200319
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
719 PM PST Sun Feb 19 2017

.A series of storms will bring strong southerly winds to the area
tonight and again late Monday afternoon through Monday night.

CAZ104>106-201300-
/O.CAN.KEKA.WI.Y.0017.000000T0000Z-170220T1500Z/
/O.NEW.KEKA.WI.Y.0018.170220T0400Z-170220T1600Z/
/O.CON.KEKA.HW.A.0005.170221T0000Z-170221T1200Z/
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-
719 PM PST Sun Feb 19 2017

...WIND ADVISORY IN EFFECT UNTIL 8 AM PST MONDAY ABOVE
1500 FEET...
...HIGH WIND WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON
THROUGH LATE MONDAY NIGHT...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect until 8 AM PST Monday. 

* WINDS...southerly gusts increasing to 50 to 60 mph late tonight
  through early Monday morning.

* LOCATIONS INCLUDE...Kneeland and the exposed ridges near 
	Petrolia, Honeydew, Ettersberg, Willow Creek, Orleans, 
	Garberville, and Bridgeville.

* HIGHWAYS IMPACTED...299 near Berry Summit and route 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 are expected. Winds
this strong can make driving difficult,especially for high
profile vehicles. Use extra caution.

&&

$$

CAZ101-103-201300-
/O.CAN.KEKA.WI.Y.0017.000000T0000Z-170220T1500Z/
/O.NEW.KEKA.WI.Y.0018.170220T0800Z-170220T1600Z/
Coastal Del Norte-Northern Humboldt Coast-
719 PM PST Sun Feb 19 2017

...WIND ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM PST
MONDAY...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect from midnight tonight to 8 AM PST
Monday. 

* WINDS...southerly gusts increasing to 40 to 50 mph late tonight through
  early Monday morning.

* LOCATIONS INCLUDE...Crescent City...Arcata...Eureka...Trinidad
  and Fortuna.

* HIGHWAY IMPACTED...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 are expected. Winds
this strong can make driving difficult,especially for high
profile vehicles. Use extra caution.

&&

$$

CAZ102-201300-
/O.CAN.KEKA.WI.Y.0017.000000T0000Z-170220T1500Z/
/O.NEW.KEKA.WI.Y.0018.170220T0800Z-170220T1600Z/
Del Norte Interior-
719 PM PST Sun Feb 19 2017

...WIND ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM PST
MONDAY ABOVE 1500 FEET...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect from midnight tonight to 8 AM PST
Monday. 

* WINDS...southerly gusts around 55 mph developing late tonight 
  through Monday morning.

* LOCATIONS INCLUDE...Above 1500 feet. 

* HIGHWAYS IMPACTED...199.

* 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 are expected. Winds
this strong can make driving difficult,especially for high
profile vehicles. Use extra caution.

&&

$$

CAZ107>111-113-201300-
/O.CON.KEKA.HW.A.0005.170221T0000Z-170221T1200Z/
Northern Trinity-Southern Trinity-Mendocino Coast-
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
Southeastern Mendocino Interior-
719 PM PST Sun Feb 19 2017

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

* WINDS...South winds will increase late Monday and Monday night with
  speeds of 30 to 40 mph and gusts to 50 to 60 mph over exposed 
  coastal headlands and higher inland ridges.

* LOCATIONS INCLUDE...Ridges near Burnt Ranch, Hayfork, 
	Ruth,Point Arena, Legget, Laytonville, and Covelo..

* HIGHWAYS IMPACTED...101, 3, and 162.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit
  http://www.wrh.noaa.gov/map

$$
498 
WWUS76 KEKA 200958
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
158 AM PST Mon Feb 20 2017

.A series of storms will bring strong southerly winds to the area
tonight and again late Monday afternoon through Monday night.

CAZ104>106-202330-
/O.CON.KEKA.WI.Y.0018.000000T0000Z-170220T1600Z/
/O.CON.KEKA.HW.A.0005.170221T0000Z-170221T1200Z/
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-
158 AM PST Mon Feb 20 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST THIS MORNING
ABOVE 1500 FEET...
...HIGH WIND WATCH REMAINS IN EFFECT FROM THIS AFTERNOON THROUGH
LATE TONIGHT...

* WINDS...southerly gusts increasing to 50 to 60 mph early this
  morning.

* LOCATIONS INCLUDE...Kneeland and the exposed ridges near 
	Petrolia, Honeydew, Ettersberg, Willow Creek, Orleans, 
	Garberville, and Bridgeville.

* HIGHWAYS IMPACTED...299 near Berry Summit and route 36.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

$$

CAZ101-103-201600-
/O.CON.KEKA.WI.Y.0018.000000T0000Z-170220T1600Z/
Coastal Del Norte-Northern Humboldt Coast-
158 AM PST Mon Feb 20 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST THIS MORNING...

* WINDS...southerly gusts increasing to 40 to 50 mph early this
  morning. 

* LOCATIONS INCLUDE...Crescent City...Arcata...Eureka...Trinidad
  and Fortuna.

* HIGHWAY IMPACTED...101.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

$$

CAZ102-201600-
/O.CON.KEKA.WI.Y.0018.000000T0000Z-170220T1600Z/
Del Norte Interior-
158 AM PST Mon Feb 20 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST THIS MORNING
ABOVE 1500 FEET...

* WINDS...southerly gusts around 55 mph developing early this
  morning.

* LOCATIONS INCLUDE...Above 1500 feet. 

* HIGHWAYS IMPACTED...199.


* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

$$

CAZ107>111-113-202330-
/O.CON.KEKA.HW.A.0005.170221T0000Z-170221T1200Z/
Northern Trinity-Southern Trinity-Mendocino Coast-
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
Southeastern Mendocino Interior-
158 AM PST Mon Feb 20 2017

...HIGH WIND WATCH REMAINS IN EFFECT FROM THIS AFTERNOON THROUGH
LATE TONIGHT...

* WINDS...South winds will increase late Monday and Monday night with
  speeds of 30 to 40 mph and gusts to 50 to 60 mph over exposed 
  coastal headlands and higher inland ridges.

* LOCATIONS INCLUDE...Ridges near Burnt Ranch, Hayfork, 
	Ruth,Point Arena, Legget, Laytonville, and Covelo..

* HIGHWAYS IMPACTED...101, 3, and 162.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

$$
171 
WWUS76 KEKA 201611
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
811 AM PST Mon Feb 20 2017

.A series of storms will bring strong southerly winds to the area
tonight and again late Monday afternoon through Monday night.

CAZ104>106-210015-
/O.EXP.KEKA.WI.Y.0018.000000T0000Z-170220T1600Z/
/O.CON.KEKA.HW.A.0005.170221T0000Z-170221T1200Z/
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-
811 AM PST Mon Feb 20 2017

...HIGH WIND WATCH REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON 
THROUGH LATE TONIGHT...
...WIND ADVISORY HAS EXPIRED...

* WINDS...After a brief lull during the middle of the day today,
  south winds will increase again late today and tonight with 
  speeds of 30 to 40 mph and gusts to 50 to 70 mph over exposed 
  coastal headlands and higher inland ridges.

* LOCATIONS INCLUDE...Ridges near Petrolia, Honeydew, Ettersberg,
  Willow Creek, Orleans, Garberville, and Bridgeville.

* HIGHWAYS IMPACTED...Higher elevations of 101, 299, 96, and 36.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph,or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

$$

CAZ101>103-201715-
/O.EXP.KEKA.WI.Y.0018.000000T0000Z-170220T1600Z/
Coastal Del Norte-Del Norte Interior-Northern Humboldt Coast-
811 AM PST Mon Feb 20 2017

...WIND ADVISORY HAS EXPIRED...

Gusty winds along the ridgetops will gradually diminish today.

$$

CAZ107>111-113-210015-
/O.CON.KEKA.HW.A.0005.170221T0000Z-170221T1200Z/
Northern Trinity-Southern Trinity-Mendocino Coast-
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
Southeastern Mendocino Interior-
811 AM PST Mon Feb 20 2017

...HIGH WIND WATCH REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON 
THROUGH LATE TONIGHT...

* WINDS...South winds will increase late Monday and Monday night 
  with speeds of 30 to 40 mph and gusts to 50 to 70 mph over 
  exposed coastal headlands and higher inland ridges.

* LOCATIONS INCLUDE...Ridges near Burnt Ranch, Hayfork, Ruth,Point
  Arena, Legget, Laytonville, and Covelo.

* HIGHWAYS IMPACTED...101, 3, and 162.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

$$
360 
WWUS76 KEKA 202340
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
340 PM PST Mon Feb 20 2017

.A developing storm system will bring a return of strong 
southerly winds to the area tonight early Tuesday. Winds will
diminish from south to north Tuesday morning.

CAZ104>108-110-111-211245-
/O.UPG.KEKA.HW.A.0005.170221T0000Z-170221T1200Z/
/O.NEW.KEKA.HW.W.0004.170221T0300Z-170221T1700Z/
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
340 PM PST Mon Feb 20 2017

...HIGH WIND WARNING IN EFFECT FROM 7 PM THIS EVENING TO 9 AM
TUESDAY... 

* WINDS...South winds will increase again tonight with speeds of
  30 to 40 mph and gusts to 50 to 70 mph over exposed coastal
  headlands and higher inland ridges. Elsewhere, south winds will
  increase to 25 to 35 mph with gusts of 45 to 55 mph. 

* LOCATIONS INCLUDE...Near Petrolia, Honeydew, Ettersberg, Willow
  Creek, Orleans, Garberville, Bridgeville, Weaverville, Burnt
  Ranch, Trinity Center, Hayfork. Ruth, Legget, and Laytonville.

* HIGHWAYS IMPACTED...Portions of 101, 299, 96, 36, 3, and 162.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

$$

CAZ101-102-211245-
/O.NEW.KEKA.HW.W.0004.170221T0300Z-170221T1700Z/
Coastal Del Norte-Del Norte Interior-
340 PM PST Mon Feb 20 2017

...HIGH WIND WARNING IN EFFECT FROM 7 PM THIS EVENING TO 9 AM 
TUESDAY...

* WINDS...South winds will increase again tonight with speeds of
  30 to 40 mph and gusts to 50 to 70 mph over exposed coastal
  headlands and higher inland ridges. Elsewhere, south winds will
  increase to 25 to 35 mph with gusts of 45 to 55 mph.

* LOCATIONS INCLUDE...Crescent City and Gasquet.

* HIGHWAYS IMPACTED...Portions of 101 and 199.

* FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
  http://www.wrh.noaa.gov/map

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

$$

CAZ109-113-211245-
/O.UPG.KEKA.HW.A.0005.170221T0000Z-170221T1200Z/
/O.NEW.KEKA.WI.Y.0019.170221T0300Z-170221T1700Z/
Mendocino Coast-Southeastern Mendocino Interior-
340 PM PST Mon Feb 20 2017

...WIND ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 9 AM 
TUESDAY...

* WINDS...South winds will increase again tonight with speeds of
  25 to 35 mph and gusts of 45 to 55 mph.

* LOCATIONS INCLUDE...Point Arena, Ukiah, and Hopland.

* HIGHWAYS IMPACTED...Portions of 1 and 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 are expected. Winds
this strong can make driving difficult,especially for high
profile vehicles. Use extra caution.

$$

CAZ103-112-211245-
/O.NEW.KEKA.WI.Y.0019.170221T0300Z-170221T1700Z/
Northern Humboldt Coast-Southwestern Mendocino Interior-
340 PM PST Mon Feb 20 2017

...WIND ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 9 AM 
TUESDAY...

* WINDS...South winds will increase again tonight with speeds of
  25 to 35 mph and gusts of 45 to 55 mph.

* LOCATIONS INCLUDE...Arcata, Eureka, Fortuna, Boonville, and
  Comptche.

* HIGHWAYS IMPACTED...Portions of 101 and 128.

* 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 are expected. Winds
this strong can make driving difficult,especially for high
profile vehicles. Use extra caution.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 19, 4:06 PM PSTWind AdvisoryEKADel Norte, Humboldt3 hr
Feb 19, 7:19 PM PSTWind AdvisoryEKADel Norte, Humboldt13 hr
Feb 19, 9:16 PM PSTGale WatchEKA18 hr
Feb 20, 4:33 AM PSTRiver Flood WarningEKAMendocino37 hr
Feb 20, 9:00 AM PSTSmall Craft AdvisoryEKA6 hr
Feb 20, 11:58 AM PSTHazardous Seas WarningEKA12 hr
Feb 20, 2:48 PM PSTRiver Flood WatchEKAMendocino5 hr
Feb 20, 3:06 PM PSTGale WarningEKA18 hr
Feb 20, 3:40 PM PSTHigh Wind WarningEKADel Norte, Humboldt, Mendocino, Trinity10 hr
Feb 20, 3:40 PM PSTWind AdvisoryEKADel Norte, Humboldt, Mendocino17 hr

Nearby

High Wind Watches in California, 2017Every high wind watch 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.