Alert archive / Tennessee / Special Weather Statements in 2012

Special Weather Statement, NWS Nashville, TN

May 5, 2012Marshall County, Maury County, Tennessee

NWS Nashville, TN issued this special weather statement at May 5, 2012, 7:59 AM CDT for Marshall County, Maury County, Tennessee. It was in force for 61 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 5, 2012, 7:59 AM CDT (12:59 UTC)
Expired: May 5, 2012, 9:00 AM CDT
In force: 61 min
Issued by: NWS Nashville, TN

Counties Marshall County, TN, Maury County, TN

The radar

The Nashville radar (KOHX), 86 km from the middle of the area, began a volume at 12:59 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

Birmingham, AL (KBMX), launched 12:00Z, 1.0 hours before the alert went out and 261 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: 1106 J/kg
Mixed-layer CIN: -124 J/kg
Mixed-layer LCL: 680 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 65 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 5, 6:58 AM CDT, 1 hour 1 minute earlier.

Area forecast discussion, May 5, 6:58 AM CDT, 1 hour 1 minute before

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Hazardous weather outlook, May 5, 7:17 AM CDT, 42 minutes before

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In the hours before

Special weather statement, May 5, 4:07 AM CDT, 3 hours 52 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
407 AM CDT SAT MAY 5 2012

TNZ005>011-023-025>034-051000-
CHEATHAM-CLAY-DAVIDSON-DICKSON-FENTRESS-HOUSTON-JACKSON-MACON-
MONTGOMERY-OVERTON-PICKETT-PUTNAM-ROBERTSON-SMITH-STEWART-SUMNER-
TROUSDALE-WILSON-
407 AM CDT SAT MAY 5 2012

...SIGNIFICANT WEATHER ADVISORY FOR CHEATHAM...CLAY...DAVIDSON...
DICKSON...FENTRESS...HOUSTON...JACKSON...MACON...MONTGOMERY...
OVERTON...PICKETT...PUTNAM...ROBERTSON...SMITH...STEWART...SUMNER...
TROUSDALE AND WILSON COUNTIES...

AT 402 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS ARE TRACKING
A LINE OF STRONG TO SEVERE THUNDERSTORMS CURRENTLY ALIGNED WEST TO
EAST ACROSS SOUTHERN KENTUCKY. A GUST FRONT HAS PUSHED AHEAD OF THE
MAIN LINE OF STORMS AND WILL BEGIN AFFECTING THE NORTHERN TIER OF
COUNTIES OF ROBERTSON AND SUMNER AROUND 5 AM CDT.

WINDS 40 TO 50 MPH ARE EXPECTED.

LAT...LON 3629 8479 3629 8487 3615 8491 3617 8503
      3613 8513 3624 8774 3664 8773 3661 8479
      3641 8466

BOYD

Special weather statement, May 5, 5:28 AM CDT, 2 hours 31 minutes before

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Local storm report, May 5, 5:36 AM CDT, 2 hours 23 minutes before

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Special weather statement, May 5, 7:59 AM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 5, 4:07 AM CDT	Special Weather Statement	OHX	Cheatham, Clay, Fentress, Houston, Jackson, Macon and 7 more	53 min
May 5, 4:39 AM CDT	Tornado Warning	OHX	Clay, Overton, Pickett	36 min
May 5, 5:12 AM CDT	Severe Thunderstorm Warning	OHX	Fentress	33 min
May 5, 5:28 AM CDT	Special Weather Statement	OHX	Benton, Cannon, Cheatham, Clay, Cumberland, Davidson and 21 more	62 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; radar from the NEXRAD Level II archive.