Alert archive / Tennessee / Special Weather Statements in 2012

Special Weather Statement, NWS Nashville, TN

May 22, 2012Overton County, Tennessee

NWS Nashville, TN issued this special weather statement at May 22, 2012, 6:06 PM CDT for Overton County, Tennessee. It was in force for 54 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 22, 2012, 6:06 PM CDT (23:06 UTC)
Expired: May 22, 2012, 7:00 PM CDT
In force: 54 min
Issued by: NWS Nashville, TN

County Overton County, TN

The radar

The Nashville radar (KOHX), 128 km from the middle of the area, began a volume at 23:10 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.1 hours before the alert went out and 324 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: 40 J/kg
Mixed-layer CIN: -184 J/kg
Mixed-layer LCL: 1072 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: -47 m²/s²
0-3 km storm-relative helicity: 0 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 22, 3:46 PM CDT, 2 hours 20 minutes earlier.

Area forecast discussion, May 22, 3:46 PM CDT, 2 hours 20 minutes before

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Hazardous weather outlook, May 22, 5:42 AM CDT, 12 hours 24 minutes before

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In the hours before

Special weather statement, May 22, 6:06 PM 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 21, 7:06 PM CDT	Areal Flood Advisory	OHX	Cumberland	114 min
May 21, 7:45 PM CDT	Special Weather Statement	OHX	Lawrence	45 min
May 21, 7:58 PM CDT	Special Weather Statement	OHX	Lawrence	47 min
May 21, 8:27 PM CDT	Special Weather Statement	OHX	Giles, Lawrence	63 min
May 21, 9:06 PM CDT	Areal Flood Advisory	OHX	Lawrence	114 min
May 22, 1:34 PM CDT	Areal Flood Advisory	OHX	Fentress	3 hr
May 22, 6:14 PM CDT	Areal Flood Advisory	OHX	Overton	3 hr
May 22, 6:15 PM CDT	Areal Flood Advisory	OHX	Grundy	35 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.