Alert archive / Tennessee / Special Weather Statements in 2012

Special Weather Statement, NWS Memphis, TN

May 6, 2012Carroll County, Tennessee

NWS Memphis, TN issued this special weather statement at May 6, 2012, 3:02 AM CDT for Carroll County, Tennessee. It was in force for 43 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 6, 2012, 3:02 AM CDT (08:02 UTC)
Expired: May 6, 2012, 3:45 AM CDT
In force: 43 min
Issued by: NWS Memphis, TN

County Carroll County, TN

The radar

The Paducah radar (KPAH), 111 km from the middle of the area, began a volume at 08:03 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

Nashville Metro, TN (KBNA), launched 00:00Z, 8.0 hours before the alert went out and 179 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: 1125 J/kg
Mixed-layer CIN: -72 J/kg
Mixed-layer LCL: 1540 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 107 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 6, 12:30 AM CDT, 2 hours 32 minutes earlier.

Area forecast discussion, May 6, 12:30 AM CDT, 2 hours 32 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEMPHIS TN
1230 AM CDT SUN MAY 6 2012

.UPDATE... /ISSUED 839 PM CDT SAT MAY 5 2012/

SKIES ARE MOSTLY CLEAR ACROSS MUCH OF THE FORECAST AREA THIS
EVENING WITH TEMPERATURES RANGING FROM THE UPPER 70S TO MID 80S.
IT APPEARS THAT THE CHANCE OF THUNDERSTORMS TONIGHT IS OVER SO
HAVE REMOVED POPS FROM FORECAST FOR THE REMAINDER OF TONIGHT. HAVE
ALSO REMOVED MENTION OF SEVERE WEATHER IN THE HWO.

ARS

&&

.DISCUSSION... /ISSUED 236 PM CDT SAT MAY 5 2012/

HOT AND HUMID CONDITIONS ARE CURRENTLY FELT BY MIDSOUTHERNERS
THIS EARLY MAY AFTERNOON WITH TEMPERATURES RANGING FROM THE MID
80S OVER NORTHWEST TENNESSEE TO 90F OVER THE MISSISSIPPI DELTA.
WINDS WERE SOUTHERLY AT 5 TO 10 MPH UNDER A MIX OF CLOUDS AND SUN.
DEWPOINTS HAVE DROPPED SLIGHTLY THIS MORNING FROM THE LOW 70S TO
THE MID AND UPPER 60S...WITH HEAT INDICES RUNNING BETWEEN 88-93F.

FOR THE REMAINDER OF TODAY...A WEAK VORT MAX OVER THE REGION WILL
KEEP A THREAT FOR AN ISOLATED STORM ALONG AND WEST OF THE
MISSISSIPPI RIVER...WITH MORE SCATTERED COVERAGE ACROSS SOUTHERN
PORTIONS OF WEST TENNESSEE AND NORTH MISSISSIPPI. CU FIELD IN
THIS AREA THOUGH IS STILL CAPPED AS OF 2PM WITH A HIDDEN OUTFLOW
BOUNDARY FROM THIS MORNING'S CONVECTION STRETCHED FROM DYERSBURG
TO PICKWICK DAM IN TENNESSEE. MODELS IN THIS AREA SHOWING MOST OF
THE QPF ACTUALLY FALLING BETWEEN THE 00-06Z TIME FRAME...WITH ONLY
THE GFS AND ECMWF HINTING AT SOMETHING FORMING PRIOR TO 00Z. HAVE
KEPT BEST CHANCES IN THE 21-03Z TIME FRAME. THE AIRMASS IS A
LOADED GUN FOR NOW WITH A STOUT CAP AT 850MB. IF THE SHORTWAVE CAN
BREAK THROUGH THIS INVERSION CAPE VALUES OF 4000 J/KG+...WILL
PRODUCE VERY LARGE HAIL AND WET MICROBURSTS. WILL LEAVE THIS
MENTION IN THE HWO. LATER SKIES WILL BECOME PARTLY CLOUDY LATE WITH
LOWS STILL RUNNING TEN DEGREES ABOVE NORMAL.

SUNDAY THROUGH TUESDAY...HOT AND HUMID WEATHER WILL CONTINUE ON
SUNDAY AND MONDAY AHEAD OF A COLD FRONT DROPPING SOUTH THROUGH THE
MIDWEST. THIS IS IN RESPONSE TO A DIVING SHORTWAVE IN THE WESTERN
GREAT LAKES FLATTENING THE RIDGE OVER THE SOUTHEAST U.S. ANY
CONVECTION SUNDAY AFTERNOON WILL REMAIN OVER THE EASTERN HALF OF
THE CWA...WITH AN INCREASING THREAT APPROACHING FROM THE NORTHWEST
LATE SUNDAY NIGHT. SEVERE CHANCES LOOK TO BE BEST OVER THE AREA ON
MONDAY DURING THE LATE AFTERNOON AND EVENING HOURS AHEAD OF THE
FRONT. THE AREA SHOULD BE ABLE TO SQUEEZE OUT SEVERAL 90F READINGS
ON SUNDAY...WITH THE SOUTHERN HALF POSSIBLY HITTING 90 DEGREES ON
MONDAY. THUNDERSTORMS LIKELY TO CONTINUE MONDAY NIGHT OVER THE
ENTIRE AREA THEN AGAIN OVER THE SOUTH ON TUESDAY AS THE FRONT
SLOWS. CLOUDY SKIES WITH PRECIPITATION SHOULD KEEP TUESDAY'S HIGHS
IN THE UPPER 70S TO MID 80S.

WEDNESDAY THROUGH THURSDAY...SURFACE HIGH PRESSURE WILL BUILD
SOUTH ACROSS THE OHIO AND TENNESSEE VALLEYS PLACING A DRY EASTERLY
FLOW OVER THE REGION. TEMPERATURES WILL BE MUCH CLOSER TO NORMAL
FOR EARLY MAY WITH READINGS IN THE 70S.

NEXT WEEKEND...LONG RANGE SOLUTIONS FROM THE ECMWF AND GFS SHOW A
BROAD TROUGH OVER THE MIDDLE OF THE COUNTRY WITH THE GFS DEPICTING
A POTENT CLOSED LOW CROSSING THE SOUTHERN PLAINS AND THE EURO
HAVING A MORE PROGRESSIVE SHORTWAVE ACROSS THE UPPER/MID
MISSISSIPPI VALLEY. HAVE INCREASED POPS SLIGHTLY STARTING LATE
FRIDAY AS A MOIST SOUTHWEST FLOW SET UPS OVER THE AREA. TEMPERATURES
SHOULD REBOUND BACK INTO THE 80S THIS PERIOD WITH DEWPOINTS
RETURNING TO THE 60S.

JAB

&&

.AVIATION...

06Z TAF SET

VFR CONDITIONS WILL PREVAIL THROUGH MUCH OF THE PERIOD...DID
CONTINUE WITH A TEMPO GROUP FOR THE POSSIBILITY OF VISIBILITY 3SM IN
FOG AT KTUP 05/08Z-05/11Z. AN UPPER LEVEL DISTURBANCE WILL MOVE INTO
THE REGION FROM THE WEST SATURDAY HELPING TO SPARK ISOLATED SHOWERS
AND THUNDERSTORMS. MENTIONED VCTS AT KJBR 05/16Z-06/00Z. AT
KMEM...KMKL...AND KTUP MENTIONED VCTS 05/18Z-06/00Z AS DAYTIME
HEATING INCREASES THE INSTABILITY. S-SW WINDS MAINLY 7 KTS OR LESS
OVERNIGHT...THEN INCREASING SATURDAY TO 8-12 KTS WITH GUSTS TO 18
KTS AT KMEM AND KJBR. AFTER 06/00Z WINDS S-SW 5 KTS OR LESS.

JCL/KRM

&&

&&

.PRELIMINARY POINT TEMPS/POPS...
MEM  71  90  68  82 /  20  50  50  20
MKL  67  87  65  80 /  30  60  60  20
JBR  68  87  64  79 /  30  60  30  10
TUP  68  89  68  82 /  20  40  60  40

&&

.MEG WATCHES/WARNINGS/ADVISORIES...
AR...NONE.
MO...NONE.
MS...NONE.
TN...NONE.
&&

Hazardous weather outlook, May 5, 8:35 PM CDT, 6 hours 27 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MEMPHIS TN
835 PM CDT SAT MAY 5 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>092-070345-
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-
835 PM CDT SAT MAY 5 2012

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

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

A COLD FRONT WILL SETTLE INTO THE MIDSOUTH LATE MONDAY THROUGH
EARLY TUESDAY. SCATTERED STRONG AND ISOLATED SEVERE THUNDERSTORMS
WILL BE POSSIBLE ALONG AND AHEAD OF THE FRONT... LATE MONDAY
AFTERNOON AND MONDAY NIGHT. ADDITIONAL STRONG STORMS WILL BE
POSSIBLE OVER NORTH MISSISSIPPI ON TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED EARLY NEXT WEEK.

In the hours before

Special weather statement, May 5, 11:03 PM CDT, 3 hours 59 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
1103 PM CDT SAT MAY 5 2012

TNZ003-004-060445-
WEAKLEY TN-HENRY TN-
1103 PM CDT SAT MAY 5 2012

...THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY UNTIL 1145 PM CDT FOR...

  NORTHWESTERN HENRY COUNTY IN NORTHWEST TENNESSEE...
  NORTHEASTERN WEAKLEY COUNTY IN NORTHWEST TENNESSEE...

A STRONG THUNDERSTORM PRODUCING PEA SIZE HAIL OR LARGER WAS LOCATED 8
MILES NORTH OF LATHAM AT 1103 PM CDT...MOVING SOUTHEAST AT 10 MPH.

DANGEROUS CLOUD TO GROUND LIGHTNING IS ALSO POSSIBLE WITH THIS
THUNDERSTORM.

PEOPLE IN HENRY AND WEAKLEY COUNTIES SHOULD MONITOR THIS STORM
CLOSELY.

&&

LAT...LON 3624 8855 3650 8881 3651 8881 3651 8835
TIME...MOT...LOC 0403Z 298DEG 7KT 3655 8867

Special weather statement, May 6, 12:23 AM CDT, 2 hours 39 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
1223 AM CDT SUN MAY 6 2012

TNZ003-004-021-060600-
WEAKLEY TN-CARROLL TN-HENRY TN-
1223 AM CDT SUN MAY 6 2012

...THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY UNTIL 100 AM CDT FOR...

  NORTH CENTRAL CARROLL COUNTY IN NORTHWEST TENNESSEE...
  SOUTHWESTERN HENRY COUNTY IN NORTHWEST TENNESSEE...
  SOUTHEASTERN WEAKLEY COUNTY IN NORTHWEST TENNESSEE...

A STRONG THUNDERSTORM PRODUCING PEA SIZE HAIL OR LARGER WAS LOCATED
OVER GLEASON AT 1223 AM CDT...MOVING SOUTHEAST AT 10 MPH.

VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING ARE
ALSO POSSIBLE WITH THIS THUNDERSTORM.

PEOPLE IN CARROLL...HENRY AND WEAKLEY COUNTIES...INCLUDING LOCATIONS
NEAR MCKENZIE...SHOULD MONITOR THIS STORM CLOSELY.

&&

LAT...LON 3612 8840 3601 8864 3625 8878 3634 8859
TIME...MOT...LOC 0523Z 330DEG 8KT 3622 8863

Local storm report, May 6, 12:42 AM CDT, 2 hours 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
1242 AM CDT SUN MAY 06 2012

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

1222 AM     HAIL             GLEASON                 36.22N 88.61W
05/06/2012  E1.25 INCH       WEAKLEY            TN   PUBLIC

            DIME TO HALF DOLLAR SIZE HAIL FELL IN GLEASON.

&&

KRM

Special weather statement, May 6, 12:43 AM CDT, 2 hours 19 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
1243 AM CDT SUN MAY 6 2012

TNZ004-060615-
HENRY TN-
1243 AM CDT SUN MAY 6 2012

...THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY UNTIL 115 AM CDT FOR...

  NORTHEASTERN HENRY COUNTY IN NORTHWEST TENNESSEE...

A STRONG THUNDERSTORM PRODUCING PEA SIZE HAIL OR LARGER WAS LOCATED
OVER PARIS LANDING STATE PARK AT 1243 AM CDT...MOVING EAST AT 20 MPH.

VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING ARE
ALSO POSSIBLE WITH THIS THUNDERSTORM.

PEOPLE IN HENRY COUNTY...INCLUDING LOCATIONS NEAR PARIS LANDING STATE
PARK...SHOULD MONITOR THIS STORM CLOSELY.

&&

LAT...LON 3635 8809 3633 8809 3632 8810 3635 8822
      3651 8816 3651 8805 3647 8804 3644 8805
      3640 8801 3636 8799
TIME...MOT...LOC 0543Z 287DEG 18KT 3641 8808

Special weather statement, May 6, 2:08 AM CDT, 54 minutes before

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Special weather statement, May 6, 3:02 AM CDT, 0 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 6, 2:48 PM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Yalobusha	27 min
May 6, 3:12 PM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Yalobusha	33 min
May 6, 3:53 PM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Chickasaw, Pontotoc	37 min
May 6, 4:35 PM CDT	Special Weather Statement	MEG	Chickasaw	25 min
May 6, 5:30 PM CDT	Special Weather Statement	MEG	Monroe	30 min
May 6, 6:11 PM CDT	Special Weather Statement	MEG	Monroe	34 min
May 5, 11:03 PM CDT	Special Weather Statement	MEG	Weakley	42 min
May 5, 11:28 PM CDT	Severe Thunderstorm Warning	MEG	Henry, Weakley	47 min
May 6, 12:23 AM CDT	Special Weather Statement	MEG	Weakley	37 min
May 6, 12:43 AM CDT	Special Weather Statement	MEG	Henry	32 min
May 6, 12:45 AM CDT	Severe Thunderstorm Warning	MEG	Carroll, Henderson, Henry, Weakley	45 min
May 6, 2:08 AM CDT	Special Weather Statement	MEG	Decatur	37 min
May 6, 4:02 AM CDT	Flash Flood Warning	MEG	Carroll, Weakley	4 hr
May 6, 4:18 AM CDT	Special Weather Statement	MEG	Carroll	42 min
May 6, 6:58 PM CDT	Special Weather Statement	MEG	Mississippi	32 min
May 6, 5:18 PM CDT	Special Weather Statement	MEG	Pemiscot	27 min
May 6, 5:55 PM CDT	Special Weather Statement	MEG	Pemiscot	35 min
May 6, 6:31 PM CDT	Special Weather Statement	MEG	Dunklin	29 min

Nearby

Special Weather Statements in Tennessee, 2012 Every 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.