Alert archive / Tennessee / Special Weather Statements in 2012

Special Weather Statement, NWS Memphis, TN

May 7, 2012Lauderdale County, Tipton County, Tennessee

NWS Memphis, TN issued this special weather statement at May 7, 2012, 1:52 AM CDT for Lauderdale County, Tipton 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
May 7, 2012, 1:52 AM CDT (06:52 UTC)
Expired
May 7, 2012, 2:30 AM CDT
In force
38 min
Issued by
NWS Memphis, TN

Counties Lauderdale County, TN, Tipton County, TN

The radar

The Memphis radar (KNQA), 40 km from the middle of the area, began a volume at 06:54 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

Little Rock, AR (KLZK), launched 00:00Z, 6.9 hours before the alert went out and 93 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 2012-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1694 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 2012-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939Sfc1 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
1694 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
1441 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
59 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at May 7, 12:33 AM CDT, 1 hour 19 minutes earlier.

Area forecast discussion, May 7, 12:33 AM CDT, 1 hour 19 minutes before
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Hazardous weather outlook, May 6, 2:58 PM CDT, 10 hours 54 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MEMPHIS TN
258 PM CDT SUN MAY 6 2012

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-
MSZ001>017-020>024-TNZ001>004-019>021-048>055-088>092-072200-
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-
258 PM CDT SUN MAY 6 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

ISOLATED STORMS MAY REACH STRONG TO SEVERE LIMITS THIS AFTERNOON
ACROSS PORTIONS OF NORTH MISSISSIPPI. LARGE HAIL AND DAMAGING
WINDS WILL BE THE MAIN THREATS. LOCALIZED FLASH FLOODING IS A
SECONDARY THREAT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS OVER ALL THE
MIDSOUTH MONDAY AND MONDAY NIGHT..

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON ACROSS NORTH
MISSISSIPPI AND MAY BE REQUESTED MONDAY AND MONDAY NIGHT OVER THE
ENTIRE MIDSOUTH.

.SPOTTER INFORMATION STATEMENT...

JAB

In the hours before

Special weather statement, May 6, 11:01 PM CDT, 2 hours 51 minutes before
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Special weather statement, May 6, 11:28 PM CDT, 2 hours 24 minutes before
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Special weather statement, May 7, 1:07 AM CDT, 45 minutes before
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Special weather statement, May 7, 1:11 AM CDT, 41 minutes before
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Special weather statement, May 7, 1:38 AM CDT, 14 minutes before
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Special weather statement, May 7, 1:52 AM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 11:28 PM CDTSpecial Weather StatementMEGMarshall62 min
May 7, 1:04 AM CDTFlash Flood WarningMEGAlcorn, Lee, Prentiss, Tippah, Tishomingo, Union3 hr
May 7, 10:33 AM CDTSpecial Weather StatementMEGLafayette27 min
May 7, 11:39 AM CDTSpecial Weather StatementMEGChickasaw, Pontotoc36 min
May 7, 11:54 AM CDTSpecial Weather StatementMEGLee21 min
May 7, 12:52 PM CDTSevere Thunderstorm WarningMEGMonroe19 min
May 6, 7:58 PM CDTSevere Thunderstorm WarningMEGLauderdale47 min
May 6, 9:40 PM CDTSpecial Weather StatementMEGTipton35 min
May 6, 9:49 PM CDTFlash Flood WarningMEGLauderdale3 hr
May 6, 10:35 PM CDTSpecial Weather StatementMEGShelby25 min
May 6, 11:01 PM CDTSpecial Weather StatementMEGFayette29 min
May 7, 2:40 AM CDTFlash Flood WarningMEGLauderdale, Tipton3 hr
May 7, 5:39 AM CDTFlash Flood WarningMEGLauderdale, Tipton3 hr
May 6, 7:30 PM CDTSpecial Weather StatementMEGClay30 min
May 6, 7:33 PM CDTSpecial Weather StatementMEGGreene27 min
May 6, 7:44 PM CDTSpecial Weather StatementMEGMississippi31 min
May 6, 8:24 PM CDTSpecial Weather StatementMEGClay36 min
May 6, 8:44 PM CDTSpecial Weather StatementMEGMississippi31 min
May 6, 9:21 PM CDTSpecial Weather StatementMEGMississippi39 min
May 7, 1:07 AM CDTSpecial Weather StatementMEGMississippi23 min
May 7, 1:11 AM CDTSpecial Weather StatementMEGClay34 min
May 7, 1:38 AM CDTSpecial Weather StatementMEGCross52 min
May 7, 1:41 AM CDTFlash Flood WarningMEGClay, Randolph3 hr
May 7, 4:57 AM CDTFlash Flood WarningMEGClay, Craighead, Greene, Randolph3 hr
May 7, 8:05 AM CDTFlash Flood WarningMEGClay, Craighead, Greene, Randolph115 min

Nearby

Special Weather Statements in Tennessee, 2012Every special weather statement in 2012

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.