Alert archive / Tennessee / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 349, NWS Memphis, TN

May 21, 2006Lake County, Obion County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at May 21, 2006, 12:31 AM CDT for Lake County, Obion County, Tennessee. It was in force for 29 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: May 21, 2006, 12:31 AM CDT (05:31 UTC)
Expired: May 21, 2006, 1:00 AM CDT
In force: 29 min
Issued by: NWS Memphis, TN
Area: Counties, with a storm outline in the text

Counties Lake County, TN, Obion County, TN

The radar

The Paducah radar (KPAH), 94 km from the middle of the area, began a volume at 05:31 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
May 20, 6:59 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 5.5 hours before the alert went out and 178 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: 1731 J/kg
Mixed-layer CIN: -155 J/kg
Mixed-layer LCL: 1840 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 68 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 May 20, 10:50 PM CDT, 1 hour 41 minutes earlier.

Area forecast discussion, May 20, 10:50 PM CDT, 1 hour 41 minutes before

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Hazardous weather outlook, May 20, 10:00 PM CDT, 2 hours 31 minutes before

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In the hours before

Local storm report, May 20, 9:23 PM CDT, 3 hours 8 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MEMPHIS TN
923 PM CDT SAT MAY 20 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0643 PM     HAIL             LEXINGTON               35.65N 88.39W
05/20/2006  E0.88 INCH       HENDERSON          TN   AMATEUR RADIO

0644 PM     HAIL             LEXINGTON               35.65N 88.39W
05/20/2006  E1.75 INCH       HENDERSON          TN   PUBLIC

            GOLF BALL SIZE HAIL REPORTED

0708 PM     HAIL             SCOTTS HILL             35.52N 88.25W
05/20/2006  E0.75 INCH       HENDERSON          TN   EMERGENCY MNGR

0713 PM     HAIL             REAGAN                  35.52N 88.35W
05/20/2006  M0.88 INCH       HENDERSON          TN   EMERGENCY MNGR

0752 PM     HAIL             REAGAN                  35.52N 88.35W
05/20/2006  M0.88 INCH       HENDERSON          TN   EMERGENCY MNGR

            PENNY TO NICKEL SIZE HAIL REPORTED AT REAGAN FIRE
            DEPARTMENT

0912 PM     HAIL             MCDOUGAL                36.44N 90.39W
05/20/2006  E0.75 INCH       CLAY               AR   LAW ENFORCEMENT

0919 PM     HAIL             MCLEMORESVILLE          35.99N 88.58W
05/20/2006  E0.75 INCH       CARROLL            TN   AMATEUR RADIO

0920 PM     HAIL             ATWOOD                  35.98N 88.67W
05/20/2006  E1.25 INCH       CARROLL            TN   TRAINED SPOTTER

            QUARTER TO HALF DOLLAR SIZE HAIL REPORTED

&&

JFB

Local storm report, May 20, 9:30 PM CDT, 3 hours 1 minute before

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Local storm report, May 20, 9:40 PM CDT, 2 hours 51 minutes before

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Local storm report, May 20, 9:54 PM CDT, 2 hours 37 minutes before

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Local storm report, May 20, 10:19 PM CDT, 2 hours 12 minutes before

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Local storm report, May 20, 10:26 PM CDT, 2 hours 5 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
May 20, 7:16 PM CDT	Severe Thunderstorm Warning	MEG	Decatur, Henderson	29 min
May 20, 7:43 PM CDT	Severe Thunderstorm Warning	MEG	Decatur, Henderson	47 min
May 20, 7:46 PM CDT	Flash Flood Warning	MEG	Decatur, Henderson	119 min
May 20, 8:56 PM CDT	Severe Thunderstorm Warning	MEG	Carroll, Gibson, Weakley	49 min
May 20, 9:35 PM CDT	Severe Thunderstorm Warning	MEG	Lake	25 min
May 20, 9:40 PM CDT	Severe Thunderstorm Warning	MEG	Carroll, Henderson	50 min
May 20, 9:53 PM CDT	Severe Thunderstorm Warning	MEG	Obion	37 min
May 20, 10:05 PM CDT	Severe Thunderstorm Warning	MEG	Decatur	40 min
May 20, 10:27 PM CDT	Severe Thunderstorm Warning	MEG	Weakley	33 min
May 21, 3:45 PM CDT	Severe Thunderstorm Warning	MEG	Decatur, Henderson	45 min
May 21, 5:31 PM CDT	Severe Thunderstorm Warning	MEG	Lauderdale	44 min
May 21, 5:36 PM CDT	Severe Thunderstorm Warning	MEG	Madison	39 min
May 21, 5:59 PM CDT	Severe Thunderstorm Warning	MEG	Chester, Henderson	31 min
May 21, 6:11 PM CDT	Severe Thunderstorm Warning	MEG	Madison	41 min
May 21, 6:18 PM CDT	Flash Flood Warning	MEG	Decatur, Henderson	3 hr
May 21, 6:29 PM CDT	Severe Thunderstorm Warning	MEG	Henderson	46 min
May 21, 6:38 PM CDT	Severe Thunderstorm Warning	MEG	Chester	42 min
May 21, 6:44 PM CDT	Flash Flood Warning	MEG	Madison	2 hr
May 20, 8:51 PM CDT	Severe Thunderstorm Warning	MEG	Clay	39 min
May 20, 9:26 PM CDT	Severe Thunderstorm Warning	MEG	Clay	29 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2006 Every severe thunderstorm warning in 2006

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.