Alert archive / Tennessee / Special Weather Statements in 2024

Special Weather Statement, NWS Morristown, TN

August 30, 2024Sevier County, Tennessee

NWS Morristown, TN issued this special weather statement at Aug 30, 2024, 4:21 PM EDT for Sevier 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: Aug 30, 2024, 4:21 PM EDT (20:21 UTC)
Expired: Aug 30, 2024, 5:00 PM EDT
In force: 39 min
Issued by: NWS Morristown, TN
Hail: 0.00 in
Wind: 50

County Sevier County, TN

The radar

The Knoxville radar (KMRX), 53 km from the middle of the area, began a volume at 20:21 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.4 hours before the alert went out and 280 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: 1219 J/kg
Mixed-layer CIN: -72 J/kg
Mixed-layer LCL: 1035 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -10 m²/s²
0-3 km storm-relative helicity: -20 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 30, 1:33 PM EDT	Special Weather Statement	MRX	Morgan	27 min
Aug 30, 4:04 PM EDT	Special Weather Statement	MRX	Polk	41 min
Aug 30, 4:34 PM EDT	Special Weather Statement	MRX	Hamilton	41 min
Aug 30, 4:52 PM EDT	Special Weather Statement	MRX	McMinn, Monroe	38 min
Aug 30, 5:29 PM EDT	Special Weather Statement	MRX	Loudon, McMinn	46 min
Aug 30, 5:36 PM EDT	Special Weather Statement	MRX	Knox	39 min
Aug 30, 6:15 PM EDT	Special Weather Statement	MRX	Johnson	45 min
Aug 30, 7:49 PM EDT	Special Weather Statement	MRX	Carter	26 min
Aug 30, 1:50 PM EDT	Special Weather Statement	MRX	Wise, City of Norton	25 min
Aug 30, 2:26 PM EDT	Special Weather Statement	MRX	Wise, City of Norton	49 min
Aug 30, 4:10 PM EDT	Special Weather Statement	MRX	Lee	35 min
Aug 30, 4:59 PM EDT	Special Weather Statement	MRX	Washington	46 min
Aug 30, 5:02 PM EDT	Special Weather Statement	MRX	Washington	43 min
Aug 30, 5:50 PM EDT	Special Weather Statement	MRX	Washington, City of Bristol	40 min

Nearby

Special Weather Statements in Tennessee, 2024 Every special weather statement in 2024

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.