Alert archive / California / Wind Advisories in 2012

Wind Advisory 21, NWS Medford, OR

March 24, 2012Siskiyou County, California

NWS Medford, OR issued this wind advisory at Mar 24, 2012, 2:58 AM PDT for Siskiyou County, California. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Mar 24, 2012, 2:58 AM PDT (09:58 UTC)
Expired: Mar 24, 2012, 11:02 AM PDT
In force: 8 hr
Issued by: NWS Medford, OR

County Siskiyou County, CA

The radar

The Medford radar (KMAX), 56 km from the middle of the area, began a volume at 10:02 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, 10.0 hours before the alert went out and 89 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2702 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 42 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, in the capitals the NWS used until 2016.

817 
WWUS76 KMFR 240958
NPWMFR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
258 AM PDT SAT MAR 24 2012

CAZ081-241800-
/O.CAN.KMFR.HW.W.0015.000000T0000Z-120325T0300Z/
/O.NEW.KMFR.WI.Y.0021.120324T0958Z-120325T0000Z/
CENTRAL SISKIYOU COUNTY-
INCLUDING THE CITY OF...WEED
258 AM PDT SAT MAR 24 2012

...WIND ADVISORY IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON...
...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON. THE
HIGH WIND WARNING HAS BEEN CANCELLED. 

* WINDS...SOUTH WINDS UPTO 35 MPH WITH GUSTS TO NEAR 50 MPH WILL
  CONTINUE THROUGH THIS AFTERNOON. THE WINDS ARE EXPECTED TO
  RAPIDLY DECREASE TONIGHT.

* TIMING...WINDS WILL BE STRONGEST AROUND MID DAY TODAY.

* LOCATIONS INCLUDE: WEED...LAKE SHASTINA AND GAZELLE.

* IMPACTS...GUSTY WINDS ON INTERSTATE FIVE COULD CREATE 
  DIFFICULT DRIVING CONDITIONS. ESPECIALLY FOR HIGH PROFILE 
  VEHICLES. THE STRONGEST WINDS ARE EXPECTED IN THE SOUTHERN 
  SHASTA VALLEY NEAR WEED AND LAKE SHASTINA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED WITH
HIGHER GUSTS POSSIBLE. WINDS THIS STRONG CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA
CAUTION.

&&


$$

1 follow-up statement

131 
WWUS76 KMFR 241802
NPWMFR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
1102 AM PDT SAT MAR 24 2012

CAZ081-241915-
/O.CAN.KMFR.WI.Y.0021.000000T0000Z-120325T0000Z/
CENTRAL SISKIYOU COUNTY-
INCLUDING THE CITY OF...WEED
1102 AM PDT SAT MAR 24 2012

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS CANCELLED THE WIND
ADVISORY. 

* WINDS...GUSTY SOUTH TO SOUTHEAST OF 20 TO 25 MPH WITH GUSTS AS
  HIGH AS 35 MPH WILL CONTINUE THIS AFTERNOON. THE STRONGEST WINDS
  WILL BE IN THE VICINITY OF WEED. 

$$

MSO

Nearby

Wind Advisories in California, 2012 Every wind advisory in 2012

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.