Alert archive / Mississippi / Special Weather Statements in 2012

Special Weather Statement, NWS Memphis, TN

April 5, 2012Marshall County, Mississippi

NWS Memphis, TN issued this special weather statement at Apr 5, 2012, 8:29 AM CDT for Marshall County, Mississippi. It was in force for 31 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: Apr 5, 2012, 8:29 AM CDT (13:29 UTC)
Expired: Apr 5, 2012, 9:00 AM CDT
In force: 31 min
Issued by: NWS Memphis, TN

County Marshall County, MS

The radar

The Memphis radar (KNQA), 58 km from the middle of the area, began a volume at 13:32 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 12:00Z, 1.5 hours before the alert went out and 49 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: 42 J/kg
Mixed-layer CIN: -132 J/kg
Mixed-layer LCL: 1448 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: -41 m²/s²
0-3 km storm-relative helicity: 51 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.2

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 Apr 5, 7:18 AM CDT, 1 hour 11 minutes earlier.

Area forecast discussion, Apr 5, 7:18 AM CDT, 1 hour 11 minutes before

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Hazardous weather outlook, Apr 5, 4:54 AM CDT, 3 hours 35 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MEMPHIS TN
454 AM CDT THU APR 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>092-061200-
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-
454 AM CDT THU APR 5 2012

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

.DAY ONE...TODAY AND TONIGHT

AN UPPER LEVEL LOW PRESSURE SYSTEM WILL MOVE THROUGH THE
MIDSOUTH TODAY. SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP
THROUGHOUT THE MORNING INTO THE AFTERNOON. SOME STORMS MAY BECOME
SEVERE WITH LARGE HAIL. THERE IS A SLIGHT RISK FOR SEVERE STORMS
FOR AREAS SOUTH AND EAST OF A LINE...FROM CLARKSDALE
MISSISSIPPI...TO MEMPHIS...TO JACKSON TENNESSEE. STRONG STORMS
WITH SMALL HAIL WILL BE POSSIBLE FOR THE REST OF THE MIDSOUTH.THE SEVERE
THREAT WILL COME TO AN END BY 7 PM AS THE UPPER LEVEL LOW PUSHES
EAST.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THE POSSIBILITY OF FROST WILL OCCUR ACROSS NORTHEASTERN PORTIONS OF THE
MIDSOUTH TUESDAY NIGHT INTO EARLY WEDNESDAY MORNING AS LOW
TEMPERATURES ARE EXPECTED TO DROP INTO THE MID 30S.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY.

KRM

In the hours before

Special weather statement, Apr 5, 6:18 AM CDT, 2 hours 11 minutes before

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Local storm report, Apr 5, 8:29 AM CDT, 0 minutes before

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Special weather statement, Apr 5, 8:29 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
Apr 5, 6:18 AM CDT	Special Weather Statement	MEG	Chickasaw, Monroe	42 min
Apr 5, 9:46 AM CDT	Special Weather Statement	MEG	DeSoto	29 min
Apr 5, 11:51 AM CDT	Special Weather Statement	MEG	Tunica	24 min
Apr 5, 12:14 PM CDT	Special Weather Statement	MEG	Tunica	31 min
Apr 5, 12:39 PM CDT	Special Weather Statement	MEG	Quitman, Tunica	36 min
Apr 5, 1:03 PM CDT	Special Weather Statement	MEG	Quitman	42 min
Apr 5, 1:32 PM CDT	Special Weather Statement	MEG	DeSoto	43 min
Apr 5, 1:33 PM CDT	Special Weather Statement	MEG	Panola	27 min
Apr 5, 1:53 PM CDT	Special Weather Statement	MEG	Lafayette	37 min
Apr 5, 2:05 PM CDT	Special Weather Statement	MEG	Marshall	40 min
Apr 5, 2:07 PM CDT	Special Weather Statement	MEG	Tallahatchie, Yalobusha	38 min
Apr 5, 2:19 PM CDT	Special Weather Statement	MEG	Pontotoc, Union	26 min
Apr 5, 2:34 PM CDT	Special Weather Statement	MEG	Marshall	26 min
Apr 5, 2:45 PM CDT	Severe Thunderstorm Warning	MEG	Lee, Pontotoc, Union	30 min
Apr 5, 2:56 PM CDT	Special Weather Statement	MEG	Calhoun	34 min
Apr 5, 3:15 PM CDT	Special Weather Statement	MEG	Lee	30 min
Apr 5, 3:40 PM CDT	Special Weather Statement	MEG	Monroe	50 min
Apr 5, 4:02 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Monroe	28 min
Apr 5, 10:01 AM CDT	Special Weather Statement	MEG	Shelby	29 min
Apr 5, 10:03 AM CDT	Severe Thunderstorm Warning	MEG	Shelby	32 min
Apr 5, 10:27 AM CDT	Special Weather Statement	MEG	Tipton	48 min
Apr 5, 11:49 AM CDT	Severe Thunderstorm Warning	MEG	Lake	41 min
Apr 5, 12:08 PM CDT	Tornado Warning	MEG	Lake	20 min
Apr 5, 12:33 PM CDT	Severe Thunderstorm Warning	MEG	Carroll	27 min
Apr 5, 12:42 PM CDT	Severe Thunderstorm Warning	MEG	Carroll, Chester, Gibson, Henderson, Madison	33 min
Apr 5, 1:08 PM CDT	Special Weather Statement	MEG	Carroll	37 min
Apr 5, 1:11 PM CDT	Special Weather Statement	MEG	Carroll	34 min
Apr 5, 1:23 PM CDT	Severe Thunderstorm Warning	MEG	Carroll, Henry, Weakley	36 min
Apr 5, 1:46 PM CDT	Special Weather Statement	MEG	Obion	29 min
Apr 5, 2:01 PM CDT	Special Weather Statement	MEG	Obion, Weakley	29 min
Apr 5, 10:17 AM CDT	Special Weather Statement	MEG	Lawrence	43 min
Apr 5, 11:09 AM CDT	Special Weather Statement	MEG	Lawrence	51 min
Apr 5, 11:52 AM CDT	Special Weather Statement	MEG	St. Francis	23 min
Apr 5, 12:25 PM CDT	Severe Thunderstorm Warning	MEG	Clay	20 min
Apr 5, 1:06 PM CDT	Special Weather Statement	MEG	Crittenden	39 min
Apr 5, 1:42 PM CDT	Special Weather Statement	MEG	Clay	33 min
Apr 5, 11:45 AM CDT	Special Weather Statement	MEG	Pemiscot	30 min

Nearby

Special Weather Statements in Mississippi, 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.