Alert archive / Tennessee / Special Weather Statements in 2012

Special Weather Statement, NWS Nashville, TN

May 6, 2012Montgomery County, Tennessee

NWS Nashville, TN issued this special weather statement at May 6, 2012, 3:51 PM CDT for Montgomery County, Tennessee. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 6, 2012, 3:51 PM CDT (20:51 UTC)
Expired: May 6, 2012, 4:15 PM CDT
In force: 24 min
Issued by: NWS Nashville, TN

County Montgomery County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 8.9 hours before the alert went out and 90 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: 81 J/kg
Mixed-layer CIN: -176 J/kg
Mixed-layer LCL: 1612 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 51 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.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Nashville, TN wrote its last area forecast discussion before this special weather statement went out at May 6, 1:00 PM CDT, 2 hours 51 minutes earlier.

Area forecast discussion, May 6, 1:00 PM CDT, 2 hours 51 minutes before

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</head>
<body>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, May 6, 5:24 AM CDT, 10 hours 27 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
524 AM CDT SUN MAY 6 2012

TNZ005>011-022>034-056>066-075-077>080-093>095-071030-
STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-CLAY-PICKETT-BENTON-
HOUSTON-HUMPHREYS-DICKSON-CHEATHAM-DAVIDSON-WILSON-TROUSDALE-
SMITH-JACKSON-PUTNAM-OVERTON-FENTRESS-PERRY-HICKMAN-LEWIS-
WILLIAMSON-MAURY-MARSHALL-RUTHERFORD-CANNON-DE KALB-WHITE-
CUMBERLAND-BEDFORD-COFFEE-WARREN-GRUNDY-VAN BUREN-WAYNE-LAWRENCE-
GILES-
524 AM CDT SUN MAY 6 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

WITH A WEAK SURFACE BOUNDARY REMAINING OVER THE AREA...ISOLATED
STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE TODAY AND TONIGHT.
STORMS MAY PRODUCE HAIL UP TO ONE INCH AND GUSTY TO DAMAGING
WIND.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR ALL OF
MIDDLE TENNESSEE LATER MONDAY INTO EARLY TUESDAY AS A COLD
FRONT MOVES INTO THE REGION. SEVERE STORMS MAY PRODUCE DAMAGING
WINDS AND LARGE HAIL.

.SPOTTER CALL TO ACTION STATEMENT...

REPORTS FROM TRAINED WEATHER SPOTTERS MAY BE NEEDED.

SPOTTER THUNDERSTORM REPORTING CRITERIA...
TORNADO
FUNNEL CLOUD
FLOODING
HAIL >= 1/2 INCH
WINDS > 50 MPH (MEASURED)
STRUCTURAL DAMAGE
TREES OR POWER LINES DOWN

07

In the hours before

Special weather statement, May 6, 3:51 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
351 PM CDT SUN MAY 6 2012

TNZ005-006-062115-
MONTGOMERY-STEWART-
351 PM CDT SUN MAY 6 2012

...SIGNIFICANT WEATHER ADVISORY FOR MONTGOMERY AND STEWART
COUNTIES...

AT 349 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 8 MILES SOUTHWEST OF FORT CAMPBELL NORTH...MOVING
SOUTHWEST AT 5 MPH.

SMALL HAIL...AND WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM. AN
OCCASIONAL CLOUD TO GROUND LIGHTNING STRIKE WILL ALSO BE POSSIBLE.

LAT...LON 3665 8731 3636 8726 3637 8759 3654 8771
      3664 8764

TB12

The office that day

Everything else NWS Nashville, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 6, 12:48 AM CDT	Special Weather Statement	OHX	Benton, Houston, Humphreys, Perry, Stewart	57 min
May 6, 1:53 AM CDT	Severe Thunderstorm Warning	OHX	Houston, Humphreys	48 min
May 6, 1:56 AM CDT	Severe Thunderstorm Warning	OHX	Houston, Stewart	27 min
May 6, 2:32 AM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Montgomery	28 min
May 6, 3:06 AM CDT	Special Weather Statement	OHX	Bedford, Benton, Cheatham, Davidson, Dickson, Hickman and 15 more	54 min
May 6, 4:50 AM CDT	Special Weather Statement	OHX	Bedford, Cannon, Coffee, Giles, Hickman, Lawrence and 6 more	55 min
May 6, 5:39 AM CDT	Special Weather Statement	OHX	Stewart	66 min
May 6, 4:10 PM CDT	Severe Thunderstorm Warning	OHX	Montgomery	35 min
May 6, 4:16 PM CDT	Severe Thunderstorm Warning	OHX	Davidson	29 min
May 6, 4:22 PM CDT	Severe Thunderstorm Warning	OHX	Coffee, Rutherford	23 min
May 6, 4:34 PM CDT	Special Weather Statement	OHX	Williamson	26 min
May 6, 4:40 PM CDT	Special Weather Statement	OHX	Robertson	35 min
May 6, 4:51 PM CDT	Severe Thunderstorm Warning	OHX	Houston, Montgomery, Stewart	24 min
May 6, 4:54 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Robertson, Sumner	36 min
May 6, 4:57 PM CDT	Severe Thunderstorm Warning	OHX	Robertson	33 min
May 6, 5:03 PM CDT	Special Weather Statement	OHX	Rutherford	57 min
May 6, 5:22 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Sumner, Wilson	23 min
May 6, 5:28 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Robertson, Sumner	32 min
May 6, 5:45 PM CDT	Severe Thunderstorm Warning	OHX	Coffee, Grundy	30 min
May 6, 5:58 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Williamson	32 min
May 6, 6:48 PM CDT	Severe Thunderstorm Warning	OHX	Williamson	27 min

Nearby

Special Weather Statements in Tennessee, 2012 Every special weather statement 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.