Alert archive / Tennessee / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 175, NWS Memphis, TN

October 31, 2013Henry County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Oct 31, 2013, 9:48 PM CDT for Henry County, Tennessee. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Oct 31, 2013, 9:48 PM CDT (02:48 UTC)
Expired: Oct 31, 2013, 10:15 PM CDT
In force: 27 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon

County Henry County, TN

The radar

The Paducah radar (KPAH), 92 km from the middle of the area, began a volume at 02:48 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 31, 7:54 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 2.8 hours before the alert went out and 154 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: 29 J/kg
Mixed-layer CIN: -124 J/kg
Mixed-layer LCL: 569 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 684 m²/s²
0-3 km storm-relative helicity: 787 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Memphis, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 31, 9:24 PM CDT, 24 minutes earlier.

Area forecast discussion, Oct 31, 9:24 PM CDT, 24 minutes before

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Hazardous weather outlook, Oct 31, 9:38 PM CDT, 10 minutes before

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In the hours before

Special weather statement, Oct 31, 7:52 PM CDT, 1 hour 56 minutes before

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Special weather statement, Oct 31, 8:02 PM CDT, 1 hour 46 minutes before

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Local storm report, Oct 31, 8:41 PM CDT, 1 hour 7 minutes before

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Special weather statement, Oct 31, 8:57 PM CDT, 51 minutes before

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Special weather statement, Oct 31, 9:11 PM CDT, 37 minutes before

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Local storm report, Oct 31, 9:34 PM CDT, 14 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 31, 7:52 PM CDT	Special Weather Statement	MEG	Lake	53 min
Oct 31, 8:02 PM CDT	Special Weather Statement	MEG	Lauderdale	28 min
Oct 31, 8:10 PM CDT	Severe Thunderstorm Warning	MEG	Dyer, Lauderdale	35 min
Oct 31, 8:23 PM CDT	Severe Thunderstorm Warning	MEG	Crockett, Dyer, Haywood, Lauderdale	37 min
Oct 31, 8:48 PM CDT	Severe Thunderstorm Warning	MEG	Crockett, Dyer, Gibson, Weakley	42 min
Oct 31, 9:23 PM CDT	Severe Thunderstorm Warning	MEG	Carroll, Gibson, Henry, Weakley	52 min
Oct 31, 8:57 PM CDT	Special Weather Statement	MEG	Tunica	33 min
Oct 31, 9:11 PM CDT	Special Weather Statement	MEG	Tate	34 min
Oct 31, 10:04 PM CDT	Special Weather Statement	MEG	Benton, Marshall	26 min
Oct 31, 7:36 PM CDT	Tornado Warning	MEG	Craighead, Mississippi, Poinsett	39 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2013 Every severe thunderstorm warning in 2013

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.