Alert archive / Tennessee / Special Weather Statements in 2012

Special Weather Statement, NWS Nashville, TN

October 17, 2012Wayne County, Tennessee

NWS Nashville, TN issued this special weather statement at Oct 17, 2012, 10:31 PM CDT for Wayne County, Tennessee. It was in force for 59 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: Oct 17, 2012, 10:31 PM CDT (03:31 UTC)
Expired: Oct 17, 2012, 11:30 PM CDT
In force: 59 min
Issued by: NWS Nashville, TN

County Wayne County, TN

The radar

The Nashville radar (KOHX), 157 km from the middle of the area, began a volume at 03:32 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 00:00Z, 3.5 hours before the alert went out and 147 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1963 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 169 m²/s²
0-3 km storm-relative helicity: 300 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.

894 
WWUS84 KOHX 180331
SPSOHX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
1031 PM CDT WED OCT 17 2012

TNZ056-058-093-180430-
LEWIS-PERRY-WAYNE-
1031 PM CDT WED OCT 17 2012

...SIGNIFICANT WEATHER ADVISORY FOR LEWIS...PERRY AND WAYNE
COUNTIES...

AT 1030 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING 
AN AREA OF STRONG THUNDERSTORMS MOVING FROM HARDIN AND DECATUR 
COUNTIES THAT WILL EVENTUALLY MOVE INTO PERRY AND WAYNE COUNTIES 
WITHIN THE NEXT 30 MINUTES. THESE THUNDERSTORMS WERE MOVING TO THE
EAST AT AROUND 50 MPH.

WIND GUSTS OF AROUND 50 MPH ARE EXPECTED WITH THESE STORMS...AS WELL 
AS HEAVY RAINFALL AND DANGEROUS CLOUD-TO-GROUND LIGHTNING.

PEOPLE IN THE CITIES OF WAYNESBORO...COLLINWOOD...AND HOHENWALD
AND THE SURROUNDING AREAS SHOULD MONITOR THE WEATHER SITUATION 
CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE 
APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN.

LAT...LON 3501 8798 3540 8799 3541 8798 3542 8800
      3548 8800 3550 8798 3553 8798 3556 8801
      3561 8801 3545 8758 3503 8758 3503 8761
      3500 8761

$$
31

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 17, 10:14 PM CDT	Special Weather Statement	OHX	Benton, Dickson, Hickman, Houston, Humphreys, Montgomery and 2 more	61 min
Oct 17, 11:14 PM CDT	Special Weather Statement	OHX	Cheatham, Davidson, Dickson, Hickman, Williamson	61 min
Oct 17, 11:28 PM CDT	Special Weather Statement	OHX	Giles, Lawrence, Lewis, Maury, Wayne	47 min
Oct 18, 12:12 AM CDT	Special Weather Statement	OHX	Bedford, Cannon, Davidson, Giles, Marshall, Maury and 4 more	48 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.