Alert archive / Tennessee / Wind Advisories in 2012

Wind Advisory 7, NWS Nashville, TN

April 15, 201222 counties in Tennessee

NWS Nashville, TN issued this wind advisory at Apr 15, 2012, 11:15 AM CDT for 22 counties in Tennessee. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Apr 15, 2012, 11:15 AM CDT (16:15 UTC)
Expired
Apr 15, 2012, 6:00 PM CDT
In force
7 hr
Issued by
NWS Nashville, TN
All 22 counties

Bedford County, TN, Benton County, TN, Cheatham County, TN, Davidson County, TN, Dickson County, TN, Giles County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Lawrence County, TN, Lewis County, TN, Marshall County, TN, Maury County, TN, Montgomery County, TN, Perry County, TN, Robertson County, TN, Rutherford County, TN, Stewart County, TN, Sumner County, TN, Wayne County, TN, Williamson County, TN, Wilson County, TN

The radar

The Nashville radar (KOHX), 68 km from the middle of the area, began a volume at 16:15 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

Nashville Metro, TN (KBNA), launched 12:00Z, 4.3 hours before the alert went out and 59 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, Nashville Metro, TN at 12:00Z on 2012-04-15Temperature 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, Nashville Metro, TN at 12:00Z on 2012-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
998 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
121 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.

052 
WWUS74 KOHX 151615
NPWOHX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NASHVILLE TN
1115 AM CDT SUN APR 15 2012

...WIND ADVISORY FOR WESTERN MIDDLE TENNESSEE THIS AFTERNOON...

.A COLD FRONT OVER THE PLAINS IS MOVING TOWARD THE MIDSTATE. WINDS
AHEAD OF THIS FRONT WILL LIKELY INCREASE THIS AFTERNOON AND PRESENT
A DANGER TO HIGH PROFILE VEHICLES AND WILL CAUSE MUCH HIGHER WAVES
ON AREA LAKES.

TNZ005>008-022>028-056>062-075-093>095-152300-
/O.NEW.KOHX.WI.Y.0007.120415T1615Z-120415T2300Z/
STEWART-MONTGOMERY-ROBERTSON-SUMNER-BENTON-HOUSTON-HUMPHREYS-
DICKSON-CHEATHAM-DAVIDSON-WILSON-PERRY-HICKMAN-LEWIS-WILLIAMSON-
MAURY-MARSHALL-RUTHERFORD-BEDFORD-WAYNE-LAWRENCE-GILES-
INCLUDING THE CITIES OF...DOVER...CLARKSVILLE...SPRINGFIELD...
GALLATIN...CAMDEN...ERIN...WAVERLY...DICKSON...ASHLAND CITY...
NASHVILLE...LEBANON...MOUNT JULIET...LOBELVILLE...CENTERVILLE...
HOHENWALD...FRANKLIN...BRENTWOOD...COLUMBIA...LEWISBURG...
MURFREESBORO...SHELBYVILLE...WAYNESBORO...LAWRENCEBURG...PULASKI
1115 AM CDT SUN APR 15 2012

...WIND ADVISORY IN EFFECT UNTIL 6 PM CDT THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A WIND
ADVISORY FOR WESTERN MIDDLE TENNESSEE...WHICH IS IN EFFECT UNTIL 6 PM 
CDT THIS AFTERNOON.

* TIMING...UNTIL 6 PM THIS AFTERNOON.

* WINDS...SOUTH WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH.

* IMPACTS...OPERATORS OF HIGH PROFILE VEHICLES...TRACTOR TRAILER
  RIGS...TALL CRANES...SHOULD USE CAUTION THIS AFTERNOON. ALSO...
  BOAT OPERATORS WILL ENCOUNTER HIGH THAN NORMAL WAVE ACTION ON
  AREA LAKES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 25 TO 39 MPH AND/OR GUSTS OF
35 TO 57 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA
CAUTION.

&&

$$

JLM

Nearby

Wind Advisories in Tennessee, 2012Every 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.