Alert archive / Tennessee / Special Weather Statements in 2018

Special Weather Statement, NWS Morristown, TN

May 7, 2018Hancock County, Tennessee

NWS Morristown, TN issued this special weather statement at May 7, 2018, 4:16 PM EDT for Hancock County, Tennessee. It was in force for 44 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 7, 2018, 4:16 PM EDT (20:16 UTC)
Expired: May 7, 2018, 5:00 PM EDT
In force: 44 min
Issued by: NWS Morristown, TN

County Hancock County, TN

The radar

The Knoxville radar (KMRX), 43 km from the middle of the area, began a volume at 20:20 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.3 hours before the alert went out and 298 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: 1205 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: -110 m²/s²
0-3 km storm-relative helicity: -90 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
May 6, 8:17 PM EDT	Special Weather Statement	MRX	Morgan	58 min
May 7, 2:58 PM EDT	Special Weather Statement	MRX	Sullivan	47 min
May 7, 4:22 PM EDT	Special Weather Statement	MRX	Greene	38 min
May 7, 4:45 PM EDT	Special Weather Statement	MRX	Hamblen	45 min
May 7, 5:08 PM EDT	Special Weather Statement	MRX	Greene	52 min
May 7, 5:45 PM EDT	Special Weather Statement	MRX	Cocke	45 min
May 7, 4:52 PM EDT	Special Weather Statement	MRX	Lee	38 min
May 7, 5:05 PM EDT	Special Weather Statement	MRX	Scott	40 min
May 7, 5:24 PM EDT	Special Weather Statement	MRX	Washington	51 min
May 7, 5:43 PM EDT	Areal Flood Advisory	MRX	Lee, Scott	3 hr
May 7, 5:49 PM EDT	Special Weather Statement	MRX	Lee	41 min
May 7, 6:39 PM EDT	Special Weather Statement	MRX	Lee	51 min
May 7, 7:10 PM EDT	Areal Flood Advisory	MRX	Lee	2 hr

Nearby

Special Weather Statements in Tennessee, 2018 Every special weather statement in 2018

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.