Alert archive / Mississippi / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 211, NWS Memphis, TN

April 20, 2006Panola County, Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Apr 20, 2006, 11:08 PM CDT for Panola County, Mississippi. It was in force for 50 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
Apr 20, 2006, 11:08 PM CDT (04:08 UTC)
Expired
Apr 20, 2006, 11:58 PM CDT
In force
50 min
Issued by
NWS Memphis, TN
Area
Counties, with a storm outline in the text

County Panola County, MS

The radar

The Memphis radar (KNQA), 109 km from the middle of the area, began a volume at 04:09 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.

IssuedProductOfficeLasted
Apr 20, 10:00 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 4.1 hours before the alert went out and 52 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-pSkew-T log-p diagram, Little Rock, AR at 00:00Z on 2006-04-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 512 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 00:00Z on 2006-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
512 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
1181 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

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 Apr 20, 9:31 PM CDT, 1 hour 37 minutes earlier.

Area forecast discussion, Apr 20, 9:31 PM CDT, 1 hour 37 minutes before
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Hazardous weather outlook, Apr 20, 10:15 PM CDT, 53 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MEMPHIS TN
1015 PM CDT THU APR 20 2006

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-
MSZ001>017-020>024-TNZ001>004-019>021-048>055-088>092-212300-
ALCORN-BENTON(MS)-CALHOUN-CARROLL-CHESTER-CHICKASAW-CLAY-COAHOMA-
CRAIGHEAD-CRITTENDEN-CROCKETT-CROSS-DESOTO-DECATUR-DUNKLIN-DYER-
FAYETTE-GIBSON-GREENE-HARDEMAN-HARDIN-HAYWOOD-HENDERSON-HENRY-
ITAWAMBA-LAFAYETTE-LAKE-LAUDERDALE-LAWRENCE-LEE(AR)-LEE(MS)-
MADISON-MARSHALL-MCNAIRY-MISSISSIPPI-MONROE-OBION-PANOLA-PEMISCOT-
PHILLIPS-POINSETT-PONTOTOC-PRENTISS-QUITMAN-RANDOLPH-SHELBY-
ST. FRANCIS-TALLAHATCHIE-TATE-TIPPAH-TIPTON-TISHOMINGO-TUNICA-
UNION-WEAKLEY-YALOBUSHA-
1015 PM CDT THU APR 20 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST ARKANSAS...
THE MISSOURI BOOTHEEL...NORTH MISSISSIPPI...AND WEST TENNESSEE.

.DAY ONE...TONIGHT

SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER THE
MID-SOUTH TONIGHT. SOME THUNDERSTORMS COULD BE SEVERE ALONG AND
SOUTH OF A HARRISBURG ARKANSAS TO DYERSBURG TENNESSEE TO PARIS
TENNESSEE LINE...WITH LARGE HAIL AND DAMAGING WINDS BEING THE
PRIMARY THREATS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

AN AREA OF LOW PRESSURE WILL MOVE ACROSS THE MID-SOUTH ON FRIDAY.
AREAS ALONG AND SOUTH OF INTERSTATE 40 WILL HAVE ADDITIONAL
POTENTIAL FOR SEVERE THUNDERSTORMS...WITH LARGE HAIL AND DAMAGING
WINDS AGAIN THE PRIMARY THREAT.

ANOTHER COLD FRONT WILL SLOWLY MOVE ACROSS THE AREA NEXT MONDAY
EVENING THROUGH WEDNESDAY MORNING. THE ATMOSPHERE WILL AGAIN
BECOME UNSTABLE WITH SLIGHT CHANCES FOR SEVERE WEATHER DURING THIS
TIME PERIOD.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS...EMERGENCY MANAGEMENT...AND LAW
ENFORCEMENT OFFICIALS IN SUPPORT OF SEVERE WEATHER WILL BE POSSIBLE
TONIGHT AND AGAIN ON FRIDAY ALONG AND SOUTH OF INTERSTATE 40.

SJM

In the hours before

Special weather statement, Apr 20, 5:32 PM CDT, 5 hours 36 minutes before
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Local storm report, Apr 20, 10:43 PM CDT, 25 minutes before
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Local storm report, Apr 20, 10:47 PM CDT, 21 minutes before
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Local storm report, Apr 20, 10:57 PM CDT, 11 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 20, 9:20 PM CDTSevere Thunderstorm WarningMEGFayette, Haywood40 min
Apr 20, 9:58 PM CDTSevere Thunderstorm WarningMEGFayette, Hardeman47 min
Apr 20, 10:41 PM CDTSevere Thunderstorm WarningMEGChester49 min
Apr 20, 11:05 PM CDTSevere Thunderstorm WarningMEGHardeman40 min
Apr 20, 11:18 PM CDTSevere Thunderstorm WarningMEGHardin, McNairy42 min
Apr 20, 11:31 PM CDTSevere Thunderstorm WarningMEGChester, Henderson44 min
Apr 20, 11:38 PM CDTSevere Thunderstorm WarningMEGFayette37 min
Apr 20, 11:43 PM CDTSevere Thunderstorm WarningMEGHardeman32 min
Apr 20, 11:58 PM CDTSevere Thunderstorm WarningMEGHardin, McNairy47 min
Apr 21, 12:14 AM CDTSevere Thunderstorm WarningMEGDecatur, Henderson31 min
Apr 21, 12:44 AM CDTSevere Thunderstorm WarningMEGHardin, McNairy46 min
Apr 21, 12:50 AM CDTSevere Thunderstorm WarningMEGFayette, Hardeman25 min
Apr 21, 1:13 AM CDTSevere Thunderstorm WarningMEGDecatur24 min
Apr 21, 1:52 AM CDTSevere Thunderstorm WarningMEGChester, Hardin, Henderson, McNairy23 min
Apr 21, 2:15 AM CDTSevere Thunderstorm WarningMEGHardin30 min
Apr 21, 2:43 AM CDTFlash Flood WarningMEGChester, Hardeman, Hardin, McNairy2 hr
Apr 21, 2:55 AM CDTFlash Flood WarningMEGHenderson, Madison2 hr
Apr 21, 3:21 AM CDTSevere Thunderstorm WarningMEGShelby39 min
Apr 21, 3:27 AM CDTSevere Thunderstorm WarningMEGFayette48 min
Apr 21, 5:56 AM CDTFlash Flood WarningMEGChester, Decatur, Fayette, Hardeman, Hardin, Henderson and 2 more2 hr
Apr 20, 10:29 PM CDTSevere Thunderstorm WarningMEGPanola31 min
Apr 20, 10:39 PM CDTSevere Thunderstorm WarningMEGQuitman51 min
Apr 20, 11:06 PM CDTSevere Thunderstorm WarningMEGLafayette39 min
Apr 20, 11:37 PM CDTSevere Thunderstorm WarningMEGMarshall53 min
Apr 20, 11:44 PM CDTSevere Thunderstorm WarningMEGLafayette31 min
Apr 21, 12:15 AM CDTSevere Thunderstorm WarningMEGBenton45 min
Apr 21, 3:29 AM CDTSevere Thunderstorm WarningMEGCoahoma46 min
Apr 21, 3:45 AM CDTSevere Thunderstorm WarningMEGTunica45 min
Apr 21, 3:49 AM CDTSevere Thunderstorm WarningMEGQuitman56 min
Apr 21, 4:18 AM CDTSevere Thunderstorm WarningMEGPanola27 min
Apr 21, 4:27 AM CDTSevere Thunderstorm WarningMEGYalobusha48 min
Apr 21, 4:28 AM CDTSevere Thunderstorm WarningMEGTallahatchie50 min
Apr 21, 2:25 AM CDTSevere Thunderstorm WarningMEGPhillips65 min
Apr 21, 3:08 AM CDTSevere Thunderstorm WarningMEGLee, St. Francis52 min
Apr 21, 3:30 AM CDTSevere Thunderstorm WarningMEGLee, Phillips45 min
Apr 21, 3:35 AM CDTSevere Thunderstorm WarningMEGCrittenden40 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2006Every 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.