Alert archive / California / Wind Advisories in 2017

Wind Advisory 22, NWS Eureka, CA

March 22, 2017Del Norte County, Humboldt County, California

NWS Eureka, CA issued this wind advisory at Mar 22, 2017, 2:26 PM PDT for Del Norte County, Humboldt County, California. It took effect at Mar 23, 2017, 5:00 PM PDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Mar 22, 2017, 2:26 PM PDT (21:26 UTC)
In effect from
Mar 23, 2017, 5:00 PM PDT
Expired
Mar 24, 2017, 5:00 AM PDT
In force
12 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 21:29 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 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 2017-03-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 joules per kilogram.LCLLFCEL10008507005003002001001 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 2017-03-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 square meters per square second.19395878Sfc1 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
4 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
749 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

079 
WWUS76 KEKA 222126
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
226 PM PDT Wed Mar 22 2017

CAZ101-231030-
/O.NEW.KEKA.WI.Y.0022.170324T0000Z-170324T1200Z/
Coastal Del Norte-
226 PM PDT Wed Mar 22 2017

...WIND ADVISORY IN EFFECT FROM 5 PM THURSDAY TO 5 AM PDT
FRIDAY...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect from 5 PM Thursday to 5 AM PDT
Friday. 

* WINDS...SOUTH 25 TO 35 MPH WITH GUSTS TO 55 MPH.

* LOCATIONS INCLUDE...Crescent City.

* HIGHWAY(S) IMPACTED...US 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.

&&

$$

CAZ102-104>106-231030-
/O.NEW.KEKA.WI.Y.0022.170324T0000Z-170324T1200Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
226 PM PDT Wed Mar 22 2017

...WIND ADVISORY IN EFFECT FROM 5 PM THURSDAY TO 5 AM PDT FRIDAY
ABOVE 1000 FEET...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect from 5 PM Thursday to 5 AM PDT
Friday. 

* WINDS...South 30 to 40 mph with gusts of 50 to 65 mph.

* LOCATIONS INCLUDE...Exposed locations above 1000 feet.

* HIGHWAY(S) IMPACTED...Highway 199...US 101...Highway
  299...Highway 96...Highway 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.

&&

$$
5 follow-up statements
351 
WWUS76 KEKA 222247
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
347 PM PDT Wed Mar 22 2017

CAZ110-111-231200-
/O.NEW.KEKA.FR.Y.0004.170323T0700Z-170323T1500Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
347 PM PDT Wed Mar 22 2017

...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM PDT
THURSDAY...

The National Weather Service in Eureka has issued a Frost
Advisory...which is in effect from midnight tonight to 8 AM PDT
Thursday.

* TEMPERATURES...33 to 36 degrees.

* LOCATIONS INCLUDE...Covelo...Laytonville..Willits...Potter
  Valley...Leggett. Some persistent clouds and overnight fog may
  restrict frost development in a few valleys...but patchy frost
  cannot be ruled out throughout the valleys of northern Mendocino
  county. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Frost Advisory means that frost is possible. Sensitive outdoor
plants may be killed if left uncovered.

&&

$$

CAZ101-231200-
/O.CON.KEKA.WI.Y.0022.170324T0000Z-170324T1200Z/
Coastal Del Norte-
347 PM PDT Wed Mar 22 2017

...WIND ADVISORY REMAINS IN EFFECT FROM 5 PM THURSDAY TO 5 AM PDT
FRIDAY...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect from 5 PM Thursday to 5 AM PDT
Friday. 

* WINDS...SOUTH 25 TO 35 MPH WITH GUSTS TO 55 MPH.

* LOCATIONS INCLUDE...Crescent City.

* HIGHWAY(S) IMPACTED...US 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.


$$

CAZ102-104>106-231200-
/O.CON.KEKA.WI.Y.0022.170324T0000Z-170324T1200Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
347 PM PDT Wed Mar 22 2017

...WIND ADVISORY REMAINS IN EFFECT FROM 5 PM THURSDAY TO 5 AM PDT
FRIDAY ABOVE 1000 FEET...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect from 5 PM Thursday to 5 AM PDT
Friday. 

* WINDS...South 30 to 40 mph with gusts of 50 to 65 mph.

* LOCATIONS INCLUDE...Exposed locations above 1000 feet.

* HIGHWAY(S) IMPACTED...Highway 199...US 101...Highway
  299...Highway 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.

$$
520 
WWUS76 KEKA 231204
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
504 AM PDT Thu Mar 23 2017

CAZ110-111-231500-
/O.CON.KEKA.FR.Y.0004.000000T0000Z-170323T1500Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
504 AM PDT Thu Mar 23 2017

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM PDT THIS MORNING
BELOW 3000 FEET...

* LOCATIONS INCLUDE...Covelo...Laytonville..Willits...Potter
  Valley...Leggett. Some persistent clouds and overnight fog may
  restrict frost development in a few valleys...but patchy frost
  cannot be ruled out throughout the valleys of northern Mendocino
  county. 


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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Frost Advisory means that frost is possible. Sensitive outdoor
plants may be killed if left uncovered.

$$

CAZ101-231515-
/O.CON.KEKA.WI.Y.0022.170324T0000Z-170324T1200Z/
Coastal Del Norte-
504 AM PDT Thu Mar 23 2017

...WIND ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO
5 AM PDT FRIDAY...

* WINDS...SOUTH 25 TO 35 MPH WITH GUSTS TO 55 MPH..

* LOCATIONS INCLUDE...Crescent City....

* HIGHWAY(S) IMPACTED...US 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.

$$

CAZ102-104>106-231515-
/O.CON.KEKA.WI.Y.0022.170324T0000Z-170324T1200Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
504 AM PDT Thu Mar 23 2017

...WIND ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO
5 AM PDT FRIDAY ABOVE 1000 FEET...

* WINDS...South 30 to 40 mph with gusts of 50 to 65 mph.

* LOCATIONS INCLUDE...Exposed locations above 1000 feet.

* HIGHWAY(S) IMPACTED...Highway 199...US 101...Highway
  299...Highway 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.

$$
009 
WWUS76 KEKA 231452
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
752 AM PDT Thu Mar 23 2017

CAZ110-111-231600-
/O.EXP.KEKA.FR.Y.0004.000000T0000Z-170323T1500Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
752 AM PDT Thu Mar 23 2017

...FROST ADVISORY WILL EXPIRE AT 8 AM PDT THIS MORNING BELOW
3000 FEET...

Temperatures early this morning remain in the low to mid 30s
across mainly interior Mendocino county from roughly the highway
101 corridor eastward. However, temperatures will rise quickly
this morning, and any lingering frost will melt quickly as the 
sun rises. Thus, the advisory has been allowed to expire. 

$$

CAZ101-240400-
/O.CON.KEKA.WI.Y.0022.170324T0000Z-170324T1200Z/
Coastal Del Norte-
752 AM PDT Thu Mar 23 2017

...WIND ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO
5 AM PDT FRIDAY...

* WINDS...SOUTH 25 TO 35 MPH WITH GUSTS TO 55 MPH..

* LOCATIONS INCLUDE...Crescent City....

* HIGHWAY(S) IMPACTED...US 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.

$$

CAZ102-104>106-240400-
/O.CON.KEKA.WI.Y.0022.170324T0000Z-170324T1200Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
752 AM PDT Thu Mar 23 2017

...WIND ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO
5 AM PDT FRIDAY ABOVE 1000 FEET...

* WINDS...South 30 to 40 mph with gusts of 50 to 65 mph.

* LOCATIONS INCLUDE...Exposed locations above 1000 feet.

* HIGHWAY(S) IMPACTED...Highway 199...US 101...Highway
  299...Highway 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.

$$
745 
WWUS76 KEKA 240402
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
902 PM PDT Thu Mar 23 2017

CAZ101-241200-
/O.CON.KEKA.WI.Y.0022.000000T0000Z-170324T1200Z/
Coastal Del Norte-
902 PM PDT Thu Mar 23 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT FRIDAY...

* WINDS...SOUTH 25 TO 35 MPH WITH GUSTS TO 55 MPH.

* LOCATIONS INCLUDE...Crescent City and exposed areas above 1,000
  feet.

* HIGHWAYS IMPACTED...Hwy 101 and Hwy 199.

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

$$

CAZ102-104>106-241200-
/O.CON.KEKA.WI.Y.0022.000000T0000Z-170324T1200Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
902 PM PDT Thu Mar 23 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT FRIDAY ABOVE
1000 FEET...

* WINDS...South 30 to 40 mph with gusts of 50 to 65 mph.

* LOCATIONS INCLUDE...Exposed locations above 1000 feet.

* HIGHWAYS IMPACTED...Highway 199...US 101...Highway 299...Highway
  36.

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

$$
569 
WWUS76 KEKA 240455
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
955 PM PDT Thu Mar 23 2017

CAZ103-241200-
/O.EXA.KEKA.WI.Y.0022.000000T0000Z-170324T1200Z/
Northern Humboldt Coast-
955 PM PDT Thu Mar 23 2017

...WIND ADVISORY IN EFFECT UNTIL 5 AM PDT FRIDAY...

The National Weather Service in Eureka has issued a Wind
Advisory...which is in effect until 5 AM PDT Friday. 

* WINDS...20 to 30 mph with gusts to 45 mph through late tonight.

* LOCATIONS INCLUDE...Arcata...Eureka...Fortuna.

* HIGHWAY(S) IMPACTED...Hwy 101.

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

$$

CAZ101-241200-
/O.CON.KEKA.WI.Y.0022.000000T0000Z-170324T1200Z/
Coastal Del Norte-
955 PM PDT Thu Mar 23 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT FRIDAY...

* WINDS...SOUTH 25 TO 35 MPH WITH GUSTS TO 55 MPH.

* LOCATIONS INCLUDE...Crescent City and exposed coastal locations.

* HIGHWAYS IMPACTED...Hwy 101 and Hwy 199.

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

$$

CAZ102-104>106-241200-
/O.CON.KEKA.WI.Y.0022.000000T0000Z-170324T1200Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
955 PM PDT Thu Mar 23 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT FRIDAY ABOVE
1000 FEET...

* WINDS...South 30 to 40 mph with gusts of 50 to 65 mph.

* LOCATIONS INCLUDE...Exposed locations above 1000 feet.

* HIGHWAYS IMPACTED...Highway 199...US 101...Highway 299...Highway
  36.

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 22, 3:06 AM PDTGale WatchEKA11 hr
Mar 22, 2:17 PM PDTGale WarningEKA43 hr
Mar 22, 2:17 PM PDTSmall Craft AdvisoryEKA61 hr
Mar 22, 3:47 PM PDTFrost AdvisoryEKAMendocino16 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.