Alert archive / California / High Wind Warnings in 2012

High Wind Warning 15, NWS Medford, OR

March 23, 2012Siskiyou County, California

NWS Medford, OR issued this high wind warning at Mar 23, 2012, 1:44 PM PDT for Siskiyou County, California. It took effect at Mar 23, 2012, 2:00 PM PDT. It was in force for 13 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 23, 2012, 1:44 PM PDT (20:44 UTC)
In effect from
Mar 23, 2012, 2:00 PM PDT
Expired
Mar 24, 2012, 2:58 AM PDT
In force
13 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 20:43 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, 8.7 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-pSkew-T log-p diagram, Medford/Jackson, OR at 12:00Z on 2012-03-23Temperature 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 2012-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
746 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
133 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.

326 
WWUS76 KMFR 232044
NPWMFR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
144 PM PDT FRI MAR 23 2012


CAZ081-241200-
/O.NEW.KMFR.HW.W.0015.120323T2100Z-120325T0300Z/
CENTRAL SISKIYOU COUNTY-
INCLUDING THE CITY OF...WEED
144 PM PDT FRI MAR 23 2012

...HIGH WIND WARNING IN EFFECT UNTIL 8 PM PDT SATURDAY...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 8 PM PDT SATURDAY. 

* WINDS...SOUTH WINDS WILL INCREASE TO 35 TO 45 MPH WITH GUSTS TO
  60 MPH THIS AFTERNOON AND CONTINUE INTO SATURDAY EVENING. SOUTH
  WINDS ARE EXPECTED TO GRADUALLY DECREASE SATURDAY NIGHT.

* TIMING...WINDS WILL BE STRONGEST THIS EVENING THROUGH SATURDAY
  AFTERNOON. 

* LOCATIONS INCLUDE: AREAS NEAR WEED AIRPORT.

* 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.

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. TRAVEL WILL BE
IMPACTED, ESPECIALLY FOR HIGH-PROFILE VEHICLES.

&&

$$

PETRUCELLI
1 follow-up statement
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.

&&


$$

The office that day

Everything else NWS Medford, OR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 23, 2:40 AM PDTWinter Weather AdvisoryMFRSiskiyou33 hr

Nearby

High Wind Warnings in California, 2012Every high wind warning 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.