Alert archive / Arkansas / Special Weather Statements in 2012

Special Weather Statement, NWS Memphis, TN

December 8, 2012Lawrence County, Arkansas

NWS Memphis, TN issued this special weather statement at Dec 8, 2012, 11:52 PM CST for Lawrence County, Arkansas. 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
Dec 8, 2012, 11:52 PM CST (05:52 UTC)
Expired
Dec 9, 2012, 12:30 AM CST
In force
38 min
Issued by
NWS Memphis, TN

County Lawrence County, AR

The radar

The Memphis radar (KNQA), 128 km from the middle of the area, began a volume at 05:52 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, 5.9 hours before the alert went out and 169 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 2012-12-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 271 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 2012-12-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 146 square meters per square second.1939587897Sfc1 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
271 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
551 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
146 m²/s²
0-3 km storm-relative helicity
179 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.2

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 Dec 8, 11:43 PM CST, 9 minutes earlier.

Area forecast discussion, Dec 8, 11:43 PM CST, 9 minutes before
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Hazardous weather outlook, Dec 8, 9:07 PM CST, 2 hours 45 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MEMPHIS TN
907 PM CST SAT DEC 8 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>092-100515-
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-
907 PM CST SAT DEC 8 2012

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

.DAY ONE...TONIGHT

A FEW STRONG TO PERHAPS A SEVERE THUNDERSTORM CONTAINING HAIL AND
STRONG GUSTY WINDS ARE POSSIBLE TONIGHT ACROSS THE MIDSOUTH.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE LATE SUNDAY AFTERNOON
INTO SUNDAY NIGHT AS A STRONG COLD FRONT MOVES THROUGH THE MID
SOUTH. THE GREATEST THREAT FOR SEVERE THUNDERSTORMS WILL BE ACROSS
EAST ARKANSAS...SOUTHWEST TENNESSEE...AND NORTH MISSISSIPPI. LARGE
HAIL AND DAMAGING WINDS WILL BE THE MAIN THREATS FOR ANY
THUNDERSTORMS THAT REACH SEVERE LIMITS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED FROM TONIGHT THROUGH SUNDAY
NIGHT.

JAB

In the hours before

Special weather statement, Dec 8, 9:32 PM CST, 2 hours 20 minutes before
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Local storm report, Dec 8, 9:53 PM CST, 1 hour 59 minutes before
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Local storm report, Dec 8, 10:02 PM CST, 1 hour 50 minutes before
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Special weather statement, Dec 8, 10:58 PM CST, 54 minutes before
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Special weather statement, Dec 8, 10:59 PM CST, 53 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
1059 PM CST SAT DEC 8 2012

TNZ055-092-090515-
DECATUR TN-HARDIN TN-
1059 PM CST SAT DEC 8 2012

...THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY UNTIL 1115 PM CST FOR...

  SOUTHERN DECATUR COUNTY IN TENNESSEE...
  NORTHEASTERN HARDIN COUNTY IN SOUTHWEST TENNESSEE...

A STRONG THUNDERSTORM PRODUCING PEA SIZE HAIL OR LARGER AND WINDS AT
LEAST 40 MPH WAS LOCATED 3 MILES NORTH OF SWIFT AT 1059 PM CST...
MOVING NORTHEAST AT 35 MPH.

VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING WILL
OCCUR WITH THIS  THUNDERSTORM.

PEOPLE IN DECATUR AND HARDIN COUNTIES SHOULD MONITOR THIS STORM
CLOSELY.

&&

LAT...LON 3538 8801 3535 8800 3527 8814 3545 8825
      3547 8824 3560 8802 3553 8797 3550 8797
      3547 8800 3546 8803 3544 8804 3540 8796
TIME...MOT...LOC 0459Z 235DEG 29KT 3540 8811
Special weather statement, Dec 8, 11:52 PM CST, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
1152 PM CST SAT DEC 8 2012

ARZ008-017-018-090630-
GREENE AR-LAWRENCE AR-RANDOLPH AR-
1152 PM CST SAT DEC 8 2012

...THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY UNTIL 1230 AM CST FOR...

  NORTHWESTERN GREENE COUNTY IN EASTERN ARKANSAS...
  EAST CENTRAL LAWRENCE COUNTY IN EASTERN ARKANSAS...
  SOUTH CENTRAL RANDOLPH COUNTY IN EASTERN ARKANSAS...

A STRONG THUNDERSTORM PRODUCING PEA SIZE HAIL OR LARGER AND WINDS AT
LEAST 40 MPH WAS LOCATED OVER PORTIA AT 1152 PM CST...MOVING EAST AT
25 MPH.

VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING WILL
OCCUR WITH THIS  THUNDERSTORM.

PEOPLE IN GREENE...LAWRENCE AND RANDOLPH COUNTIES...INCLUDING
LOCATIONS NEAR BLACK ROCK...HOXIE AND WALNUT RIDGE...SHOULD MONITOR
THIS STORM CLOSELY.

&&

LAT...LON 3612 9116 3627 9076 3626 9074 3609 9074
      3603 9085 3597 9105
TIME...MOT...LOC 0552Z 251DEG 21KT 3608 9101

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 8, 8:00 PM CSTSpecial Weather StatementMEGTallahatchie30 min
Dec 8, 8:15 PM CSTSpecial Weather StatementMEGYalobusha15 min
Dec 8, 8:35 PM CSTSpecial Weather StatementMEGYalobusha25 min
Dec 8, 8:58 PM CSTSpecial Weather StatementMEGLafayette32 min
Dec 8, 9:02 PM CSTSevere Thunderstorm WarningMEGBenton, Calhoun, Lafayette, Marshall, Pontotoc, Union28 min
Dec 8, 9:32 PM CSTSpecial Weather StatementMEGUnion28 min
Dec 8, 10:59 PM CSTSpecial Weather StatementMEGDecatur16 min
Dec 9, 2:56 AM CSTSpecial Weather StatementMEGDyer34 min
Dec 9, 4:46 PM CSTSpecial Weather StatementMEGHaywood29 min
Dec 9, 5:11 PM CSTSpecial Weather StatementMEGMadison34 min
Dec 9, 5:24 PM CSTSpecial Weather StatementMEGFayette36 min
Dec 9, 5:48 PM CSTSpecial Weather StatementMEGHenderson27 min
Dec 9, 12:11 AM CSTSpecial Weather StatementMEGLawrence34 min
Dec 9, 3:05 PM CSTSevere Thunderstorm WarningMEGLawrence, Randolph40 min
Dec 9, 3:13 PM CSTTornado WarningMEGLawrence, Randolph32 min
Dec 9, 3:40 PM CSTSevere Thunderstorm WarningMEGGreene, Randolph35 min
Dec 9, 4:05 PM CSTSpecial Weather StatementMEGClay25 min
Dec 9, 4:48 PM CSTSpecial Weather StatementMEGCraighead27 min
Dec 9, 4:52 PM CSTSpecial Weather StatementMEGClay38 min
Dec 9, 5:13 PM CSTSpecial Weather StatementMEGCraighead32 min
Dec 9, 5:44 PM CSTFlash Flood WarningMEGClay, Greene99 min
Dec 9, 5:51 PM CSTSpecial Weather StatementMEGCraighead39 min
Dec 9, 1:55 AM CSTSpecial Weather StatementMEGPemiscot35 min

Nearby

Special Weather Statements in Arkansas, 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.