Alert archive / Tennessee / Special Weather Statements in 2017

Special Weather Statement, NWS Memphis, TN

April 19, 2017Benton County, Tennessee

NWS Memphis, TN issued this special weather statement at Apr 19, 2017, 3:07 PM CDT for Benton County, Tennessee. It was in force for 38 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: Apr 19, 2017, 3:07 PM CDT (20:07 UTC)
Expired: Apr 19, 2017, 3:45 PM CDT
In force: 38 min
Issued by: NWS Memphis, TN

County Benton County, TN

The radar

The Ft Campbell radar (KHPX), 112 km from the middle of the area, began a volume at 20:07 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, 8.1 hours before the alert went out and 139 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: 44 J/kg
Mixed-layer CIN: -99 J/kg
Mixed-layer LCL: 830 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 96 m²/s²
0-3 km storm-relative helicity: 138 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 Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 19, 1:17 PM CDT	Special Weather Statement	MEG	Henry	43 min
Apr 19, 1:37 PM CDT	Special Weather Statement	MEG	Hardin	53 min
Apr 19, 2:08 PM CDT	Special Weather Statement	MEG	Henderson	52 min

Nearby

Special Weather Statements in Tennessee, 2017 Every special weather statement in 2017

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.