Alert archive / California / Wind Advisories in 2017

Wind Advisory 15, NWS Eureka, CA

February 15, 2017Del Norte County, Humboldt County, California

NWS Eureka, CA issued this wind advisory at Feb 15, 2017, 2:52 AM PST for Del Norte County, Humboldt County, California. It took effect at Feb 15, 2017, 12:00 PM PST. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
Feb 15, 2017, 2:52 AM PST (10:52 UTC)
In effect from
Feb 15, 2017, 12:00 PM PST
Expired
Feb 16, 2017, 3:37 AM PST
In force
16 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 10:54 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, 10.9 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 00:00Z on 2017-02-15Temperature 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 2017-02-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 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
3007 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
105 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

946 
WWUS76 KEKA 151052
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
252 AM PST Wed Feb 15 2017

CAZ102-104>106-160215-
/O.UPG.KEKA.HW.A.0004.170216T0000Z-170216T0600Z/
/O.NEW.KEKA.WI.Y.0015.170215T2000Z-170216T0600Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
252 AM PST Wed Feb 15 2017

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

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect from noon today to 10 PM PST this
evening. The High Wind Watch is no longer in effect. 

* WINDS...35 to 45 mph with gusts around 50 to 70 mph. 

* LOCATIONS INCLUDE...Kneeland...Berry Summit...and exposed ridges
  across interior Del Norte and Humboldt counties.

* HIGHWAY(S) IMPACTED...Mountain passes on Hwy 199...Hwy 
  101...Hwy 299...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 ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

CAZ101-103-160215-
/O.UPG.KEKA.HW.A.0004.170216T0000Z-170216T0600Z/
/O.NEW.KEKA.WI.Y.0015.170216T0000Z-170216T0600Z/
Coastal Del Norte-Northern Humboldt Coast-
252 AM PST Wed Feb 15 2017

...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 PM PST
THIS EVENING AROUND COASTAL HEADLANDS...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect from 4 PM this afternoon to 10 PM
PST this evening. The High Wind Watch is no longer in effect. 

* WINDS...30 to 35 mph with gusts around 40 to 50 mph. 

* LOCATIONS INCLUDE...Crescent City...Patricks
  Point...Arcata...Fickle Hill...Eureka...Fortuna....

* HIGHWAY(S) IMPACTED...Hwy 101 near the coast.

* 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.

&&

$$
3 follow-up statements
984 
WWUS76 KEKA 151958
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
1158 AM PST Wed Feb 15 2017

CAZ102-104>106-160700-
/O.EXT.KEKA.WI.Y.0015.170215T2000Z-170216T1200Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
1158 AM PST Wed Feb 15 2017

...WIND ADVISORY NOW IN EFFECT UNTIL 4 AM PST THURSDAY...

* WINDS...35 to 45 mph with gusts around 50 to 70 mph.

* LOCATIONS INCLUDE...Kneeland...Berry Summit...and exposed 
  ridges across interior Del Norte and Humboldt counties. 

* HIGHWAY(S) IMPACTED...Mountain passes on Hwy 199...Hwy 101... 
  Hwy 299...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 ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

CAZ101-103-160700-
/O.EXT.KEKA.WI.Y.0015.170216T0000Z-170216T1200Z/
Coastal Del Norte-Northern Humboldt Coast-
1158 AM PST Wed Feb 15 2017

...WIND ADVISORY NOW IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM
PST THURSDAY...

* WINDS...30 to 35 mph with gusts around 40 to 50 mph.

* LOCATIONS INCLUDE...Crescent City...Patricks Point...Arcata... 
  Fickle Hill...Eureka...Fortuna.... 

* HIGHWAY(S) IMPACTED...Hwy 101 near the coast.

* 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.

&&

$$
508 
WWUS76 KEKA 152345
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
345 PM PST Wed Feb 15 2017

CAZ101-103-160745-
/O.CON.KEKA.WI.Y.0015.170216T0000Z-170216T1200Z/
Coastal Del Norte-Northern Humboldt Coast-
345 PM PST Wed Feb 15 2017

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

* WINDS...30 to 35 mph with gusts around 40 to 50 mph. Winds will
  subside late tonight.

* LOCATIONS INCLUDE...Crescent City...Patricks Point...Arcata... 
  Fickle Hill...Eureka...Fortuna.... 

* HIGHWAY(S) IMPACTED...Hwy 101 near the coast.

* 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.

&&

$$

CAZ102-104>106-160745-
/O.CON.KEKA.WI.Y.0015.000000T0000Z-170216T1200Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
345 PM PST Wed Feb 15 2017

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

* WINDS...35 to 45 mph with gusts around 50 to 70 mph. Winds will
  subside late tonight.

* LOCATIONS INCLUDE...Kneeland...Berry Summit...and exposed 
  ridges across interior Del Norte and Humboldt counties. 

* HIGHWAY(S) IMPACTED...Mountain passes on Hwy 199...Hwy 101... 
  Hwy 299...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 ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$
428 
WWUS76 KEKA 161137
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
337 AM PST Thu Feb 16 2017


CAZ101>106-161245-
/O.CAN.KEKA.WI.Y.0015.000000T0000Z-170216T1200Z/
Coastal Del Norte-Del Norte Interior-Northern Humboldt Coast-
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-
337 AM PST Thu Feb 16 2017

...WIND ADVISORY IS CANCELLED...

The National Weather Service in Eureka has cancelled the Wind
Advisory. 


$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 15, 3:16 AM PSTGale WarningEKA24 hr
Feb 15, 2:32 PM PSTFlood WatchEKAHumboldt, Mendocino19 hr

Nearby

Wind Advisories in California, 2017Every wind advisory 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.