Alert archive / Tennessee / Special Weather Statements in 2012

Special Weather Statement, NWS Memphis, TN

May 5, 2012Weakley County, Tennessee

NWS Memphis, TN issued this special weather statement at May 5, 2012, 11:03 PM CDT for Weakley County, Tennessee. It was in force for 42 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 5, 2012, 11:03 PM CDT (04:03 UTC)
Expired: May 5, 2012, 11:45 PM CDT
In force: 42 min
Issued by: NWS Memphis, TN

County Weakley County, TN

The radar

The Paducah radar (KPAH), 76 km from the middle of the area, began a volume at 04:03 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, 4.1 hours before the alert went out and 183 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 5, 8:39 PM CDT, 2 hours 24 minutes earlier.

Area forecast discussion, May 5, 8:39 PM CDT, 2 hours 24 minutes before

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Hazardous weather outlook, May 5, 8:35 PM CDT, 2 hours 28 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, 0 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

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, 11:28 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, 3:02 AM CDT	Special Weather Statement	MEG	Carroll	43 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.