Alert archive / Tennessee / Special Weather Statements in 2012

Special Weather Statement, NWS Nashville, TN

May 19, 2012Giles County, Tennessee

NWS Nashville, TN issued this special weather statement at May 19, 2012, 6:21 PM CDT for Giles County, Tennessee. It was in force for 39 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 19, 2012, 6:21 PM CDT (23:21 UTC)
Expired: May 19, 2012, 7:00 PM CDT
In force: 39 min
Issued by: NWS Nashville, TN

County Giles County, TN

The radar

The Northeast Alabama radar (KHTX), 77 km from the middle of the area, began a volume at 23:21 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, 11.4 hours before the alert went out and 102 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: 833 J/kg
Mixed-layer CIN: -95 J/kg
Mixed-layer LCL: 1141 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 101 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.

436 
WWUS84 KOHX 192321
SPSOHX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
621 PM CDT SAT MAY 19 2012

TNZ061-095-200000-
GILES-MARSHALL-
621 PM CDT SAT MAY 19 2012

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN GILES AND SOUTHERN 
MARSHALL COUNTIES...

AT 617 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 12 MILES SOUTH OF LEWISBURG...MOVING SOUTHWEST AT
5 MPH.

NICKEL SIZE HAIL...AND WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS
STORM.

LAT...LON 3508 8692 3538 8706 3541 8672 3531 8667
      3525 8675 3526 8682 3513 8683

$$

SHAMBURGER

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 7:00 PM CDT	Severe Thunderstorm Warning	OHX	Marshall, Maury, Williamson	45 min
May 19, 2:19 PM CDT	Special Weather Statement	OHX	Van Buren	26 min
May 19, 2:31 PM CDT	Severe Thunderstorm Warning	OHX	Van Buren, White	31 min
May 19, 3:08 PM CDT	Severe Thunderstorm Warning	OHX	White	24 min
May 19, 3:38 PM CDT	Special Weather Statement	OHX	White	37 min
May 19, 3:42 PM CDT	Special Weather Statement	OHX	Cumberland	33 min
May 19, 4:10 PM CDT	Special Weather Statement	OHX	Cannon	50 min
May 19, 4:22 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, Coffee, Rutherford, Warren	53 min
May 19, 4:24 PM CDT	Severe Thunderstorm Warning	OHX	Robertson	22 min
May 19, 4:50 PM CDT	Special Weather Statement	OHX	Montgomery	40 min
May 19, 4:55 PM CDT	Special Weather Statement	OHX	Rutherford	50 min
May 19, 5:02 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee, Rutherford	43 min
May 19, 5:03 PM CDT	Severe Thunderstorm Warning	OHX	Montgomery, Robertson	27 min
May 19, 5:05 PM CDT	Special Weather Statement	OHX	Maury	25 min
May 19, 5:14 PM CDT	Special Weather Statement	OHX	Cheatham	46 min
May 19, 5:33 PM CDT	Special Weather Statement	OHX	Wilson	57 min
May 19, 5:39 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Marshall, Rutherford, Williamson	51 min
May 19, 5:45 PM CDT	Special Weather Statement	OHX	Hickman	45 min
May 19, 5:47 PM CDT	Severe Thunderstorm Warning	OHX	Sumner, Trousdale, Wilson	43 min
May 19, 5:58 PM CDT	Areal Flood Advisory	OHX	Bedford, Rutherford	2 hr
May 19, 6:15 PM CDT	Special Weather Statement	OHX	Cheatham	45 min
May 19, 6:23 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Rutherford, Williamson	52 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.