Alert archive / Mississippi / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 183, NWS Memphis, TN

April 20, 2011Monroe County, Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Apr 20, 2011, 2:28 PM CDT for Monroe County, Mississippi. It was in force for 36 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 20, 2011, 2:28 PM CDT (19:28 UTC)
Expired: Apr 20, 2011, 3:04 PM CDT
In force: 36 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon

County Monroe County, MS

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 20, 1:02 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 7.5 hours before the alert went out and 167 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: 2075 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 550 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 151 m²/s²
0-3 km storm-relative helicity: 166 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 7.5

Open this sounding in Storm Lab

The text

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

622 
WUUS54 KMEG 201928
SVRMEG
MSC095-202015-
/O.NEW.KMEG.SV.W.0183.110420T1928Z-110420T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
228 PM CDT WED APR 20 2011

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN MONROE COUNTY IN NORTHEAST MISSISSIPPI...

* UNTIL 315 PM CDT

* AT 228 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM PRODUCING HALF DOLLAR SIZE HAIL...AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR STRONG...OR
  6 MILES NORTH OF WEST POINT...AND MOVING EAST AT 30 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MULDON...
  STRONG AND NEW HAMILTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT SEVERE WEATHER ONLY...CALL 1 800 4 3 2 0 8 7 5.

&&

LAT...LON 3367 8851 3368 8850 3368 8872 3375 8872
      3376 8824 3374 8825 3374 8831 3369 8837
      3365 8850 3365 8851
TIME...MOT...LOC 1928Z 274DEG 25KT 3369 8860

$$
BORGHOFF

2 follow-up statements

112 
WWUS54 KMEG 201945
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
245 PM CDT WED APR 20 2011

MSC095-202015-
/O.CON.KMEG.SV.W.0183.000000T0000Z-110420T2015Z/
MONROE MS-
245 PM CDT WED APR 20 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM CDT
FOR SOUTH CENTRAL MONROE COUNTY...

AT 245 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED OVER
MONROE COUNTY...OR NEAR COLUMBUS AFB...MOVING EAST AT 30 MPH.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO RURAL AREAS
OF SOUTH CENTRAL MONROE COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT SEVERE WEATHER ONLY...CALL 1 800 4 3 2 0 8 7 5.

&&

LAT...LON 3367 8851 3368 8850 3369 8857 3372 8833
      3369 8837 3365 8850 3365 8851
TIME...MOT...LOC 1945Z 277DEG 28KT 3367 8846

$$
BORGHOFF

565 
WWUS54 KMEG 202004
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
304 PM CDT WED APR 20 2011

MSC095-202013-
/O.CAN.KMEG.SV.W.0183.000000T0000Z-110420T2015Z/
MONROE MS-
304 PM CDT WED APR 20 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL MONROE COUNTY IS
CANCELLED...

AT 303 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE 
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA 
AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY. 
THEREFORE...THE SEVERE THUNDERSTORM WARNING IS CANCELLED.

LAT...LON 3367 8851 3368 8850 3369 8857 3372 8833
      3369 8837 3365 8850 3365 8851
TIME...MOT...LOC 2003Z 277DEG 28KT 3363 8830

$$
BORGHOFF

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Apr 20, 12:45 PM CDT, 1 hour 43 minutes earlier.

Area forecast discussion, Apr 20, 12:45 PM CDT, 1 hour 43 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE MEMPHIS TN
1245 PM CDT WED APR 20 2011

.UPDATE...

UPDATED FOR 18Z AVIATION DISCUSSION.

&&

.PREV DISCUSSION... /ISSUED 1111 AM CDT WED APR 20 2011/

UPDATE...

WIDESPREAD SHOWERS AND THUNDERSTORMS HAVE DIMINISHED IN COVERAGE
ACROSS THE SOUTHERN HALF OF THE MIDSOUTH LATE THIS MORNING. COLD
FRONT THAT SURGED THROUGH THE AREA OVERNIGHT HAS STALLED ACROSS
NORTH CENTRAL MISSISSIPPI AND SHOULD LINGER THROUGH THE DAY. THIS
FRONTAL BOUNDARY WILL ACT AS A FOCUS FOR ADDITIONAL SHOWER AND
THUNDERSTORM DEVELOPMENT. WITH RIVERS AND CREEKS ALREADY SWOLLEN
AND SOILS SATURATED...DECIDED TO KEEP ONGOING FFA ONLY ALONG AND
SOUTH OF A WEST HELENA ARKANSAS TO OXFORD TO FULTON MISSISSIPPI
LINE THROUGH THURSDAY MORNING. ALSO DROPPED HIGH TEMPERATURES A
FEW DEGREES AREA WIDE DUE TO OBSERVATIONAL TRENDS. REMAINDER OF
FORECAST LOOKS GOOD ATTM.

CCD

&&

.PREV DISCUSSION... /ISSUED 425 AM CDT WED APR 20 2011/

DISCUSSION...
ONGOING CONVECTION REMAINS SEVERE ACROSS PORTIONS OF NORTH
MISSISSIPPI...BUT HAS DIMINISHED IN BOTH COVERAGE AND INTENSITY
ELSEWHERE. A COLD FRONT IS APPROACHING LITTLE ROCK AND JACKSON
TENNESSEE BUT IS EXPECTED TO STALL ACROSS NORTH MISSISSIPPI LATER
THIS AFTERNOON. THIS FEATURE WILL HELP TO FOCUS AFTERNOON
CONVECTION ACROSS THE SOUTHERN HALF OF THE CWA. PRECIPITABLE
WATER VALUES WILL BE IN EXCESS OF 1.5 INCHES SOUTH OF THE
FRONT...AND ARE AS HIGH AS 1.7 INCHES ACCORDING TO GFS GUIDANCE.
THIS SHOULD RESULT IN EXTREME RAINFALL RATES ACROSS NORTHERN
MISSISSIPPI...EAST CENTRAL ARKANSAS AND POSSIBLY PORTIONS OF WEST
TENNESSEE. WESTERLY FLOW ALOFT WILL RESULT IN A TENDENCY FOR
STORMS TO TRAIN ACROSS THE SAME AREAS TODAY AND TONIGHT. HEAVY
RAIN HAS...OR IS ALREADY FALLEN ACROSS THIS AREA...SO ADDITIONAL
RAINFALL COULD RESULT IN FLASH FLOODING.

IN ADDITION TO FLOODING...THE THREAT FOR SEVERE THUNDERSTORMS WILL
CONTINUE SOUTH OF THE FRONT TODAY. DEEP MOISTURE AND WARMING
TEMPERATURES WILL RESULT IN VERY UNSTABLE CONDITIONS THIS
AFTERNOON. CAPES IN EXCESS OF 1500 J/KG AND VERY LITTLE CAP
SHOULD ALLOW FOR RAPID REDEVELOPMENT OF THUNDERSTORMS AS
TEMPERATURES WARM TODAY DESPITE LACK OF DYNAMIC SUPPORT. DAMAGING
WIND AND POSSIBLY HAIL ARE THE PRIMARY THREATS.

TOMORROW...THE FRONT WILL RETURN NORTHWARD AS A WARM FRONT AND
UNORGANIZED BUT WIDESPREAD SHOWERS AND THUNDERSTORMS ARE EXPECTED
ACROSS THE MIDSOUTH.

FRIDAY ANOTHER STORM SYSTEM WILL MOVE OUT OF
THE PLAINS.THE SURFACE LOW LOOKS LIKE IT WILL TRACK OVER NORTHERN
MISSOURI DURING THE MIDDLE OF THE DAY SO STORMS WILL BE ABLE TO
TAKE ADVANTAGE OF DAYTIME HEATING. A FEW SEVERE STORMS MAY
DEVELOP...MOST LIKELY ACROSS NORTHEAST ARKANSAS...AND SOUTH
MISSOURI.

&&

.AVIATION...

18Z TAF CYCLE

SCATTERED THUNDERSTORMS WILL CONTINUE AROUND THE KTUP AREA FOR THE
REST OF THE AFTERNOON. GENERALLY MVFR CIGS EXPECTED ELSEWHERE
THROUGH MID AFTERNOON BEFORE SOME MODEST IMPROVEMENT IN CIGS. MORE
WIDESPREAD RAIN WILL LIKELY DEVELOP THIS EVENING WITH MVFR CIGS
EXPECTED FOR MUCH OF THE OVERNIGHT. A FEW THUNDERSTORMS ARE ALSO
FORECAST TONIGHT...BUT WILL REFRAIN FROM PREVAILING THUNDER FOR
NOW AND JUST MENTION VCTS.

BORGHOFF

&&

.PRELIMINARY POINT TEMPS/POPS...
MEM  72  55  75  65 /  30  60  50  20
MKL  70  50  74  63 /  20  30  50  30
JBR  66  51  69  61 /  10  30  50  40
TUP  77  57  80  65 /  50  70  50  20

&&

.MEG WATCHES/WARNINGS/ADVISORIES...
AR...FLASH FLOOD WATCH THROUGH THURSDAY MORNING FOR PHILLIPS.

MO...NONE.
MS...FLASH FLOOD WATCH THROUGH THURSDAY MORNING FOR CALHOUN-CHICKASAW-
     COAHOMA-ITAWAMBA-LAFAYETTE-LEE MS-MONROE-PANOLA-PONTOTOC-
     QUITMAN-TALLAHATCHIE-UNION-YALOBUSHA.

TN...NONE.
&&

Hazardous weather outlook, Apr 20, 12:05 PM CDT, 2 hours 23 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MEMPHIS TN
1205 PM CDT WED APR 20 2011

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-
MSZ001>017-020>024-TNZ001>004-019>021-048>055-088>092-211915-
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-
1205 PM CDT WED APR 20 2011

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS TODAY ACROSS
PORTIONS OF NORTH MISSISSIPPI...GENERALLY ALONG AND SOUTH OF A
LINE FROM LULA TO NEW ALBANY TO FULTON. THE PRIMARY SEVERE WEATHER
THREATS WILL BE LARGE HAIL AND POSSIBLY DAMAGING WINDS.

IN ADDITION...HEAVY RAINFALL RATES...AS WELL AS A TENDENCY FOR
STORMS TO TRAIN ACROSS THE SAME AREA DUE TO A STALLED FRONTAL
BOUNDARY WILL RESULT IN A THREAT OF FLASH FLOODING. FLOODING WILL
BE MOST LIKELY BE POSSIBLE ACROSS THE AREAS LISTED ABOVE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

ANOTHER ROUND OF STRONG TO SEVERE THUNDERSTORMS IS POSSIBLE ON
FRIDAY AS ANOTHER STORM SYSTEM MOVES OUT OF THE CENTRAL PLAINS. AT
THIS TIME SEVERE STORMS LOOK MOST LIKELY ACROSS SOUTH MISSOURI AND
NORTHEAST ARKANSAS...WITH DAMAGING WINDS THE MAIN THREAT.

.SPOTTER INFORMATION STATEMENT...

THE ACTIVATION OF STORM SPOTTERS...EMERGENCY MANAGEMENT OFFICIALS
AND AMATEUR RADIO OPERATORS IN SUPPORT OF SEVERE WEATHER
OPERATIONS MAY BE NEEDED THIS AFTERNOON ACROSS PORTIONS OF NORTH
MISSISSIPPI AND AGAIN ON FRIDAY.

CCD

In the hours before

Local storm report, Apr 20, 11:30 AM CDT, 2 hours 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
1130 AM CDT WED APR 20 2011

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

1107 AM     FUNNEL CLOUD     2 N PARIS               34.21N 89.47W
04/20/2011                   LAFAYETTE          MS   TRAINED SPOTTER

1129 AM     HAIL             3 S TULA                34.19N 89.37W
04/20/2011  E1.25 INCH       LAFAYETTE          MS   TRAINED SPOTTER

&&

BORGHOFF

Local storm report, Apr 20, 12:15 PM CDT, 2 hours 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
1215 PM CDT WED APR 20 2011

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

1158 AM     HAIL             RANDOLPH                34.18N 89.17W
04/20/2011  E1.00 INCH       PONTOTOC           MS   POST OFFICE

&&

BORGHOFF

Local storm report, Apr 20, 12:28 PM CDT, 2 hours before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
1228 PM CDT WED APR 20 2011

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

1030 PM     TSTM WND DMG     CRAWFORDSVILLE          35.23N 90.33W
04/19/2011                   CRITTENDEN         AR   EMERGENCY MNGR

            TREES DOWN IN THE TOWN OF CRAWFORDSVILLE. A FEW TREES
            FELL ON VACANT HOUSES.

1038 PM     TSTM WND DMG     MARION                  35.21N 90.20W
04/19/2011                   CRITTENDEN         AR   EMERGENCY MNGR

            2 TRACTOR TRAILERS WERE BLOWN OVER ON INTERSTATE 55 NEAR
            MARION. A ROOF ON A BUSINESS WAS BLOWN OFF. TREES AND
            POWER LINES ARE DOWN COUNTY WIDE.

1040 PM     TSTM WND DMG     2 W WEST MEMPHIS        35.15N 90.22W
04/19/2011                   CRITTENDEN         AR   EMERGENCY MNGR

            A MOBILE HOME WAS BLOWN IN HALF NEAR LEHI...CLOSE TO THE
            INTERSECTION OF HWY 70 AND INTERSTATE 40. A TRACTOR
            TRAILER WAS ALSO BLOWN OVER IN THE VICINITY.

1127 AM     HAIL             TULA                    34.23N 89.37W
04/20/2011  E0.75 INCH       LAFAYETTE          MS   EMERGENCY MNGR

            DIME SIZE HAIL REPORTED BY EMERGENCY MANAGEMENT IN THE
            TOWN OF TULA.

1222 PM     HAIL             4 S ALGOMA              34.12N 89.04W
04/20/2011  M1.50 INCH       PONTOTOC           MS   FIRE DEPT/RESCUE

            PING PONG BALL SIZE HAIL IN THE TOWN OF WALLFIELD.

&&

RRH

Local storm report, Apr 20, 1:24 PM CDT, 1 hour 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
124 PM CDT WED APR 20 2011

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

1042 PM     TSTM WND DMG     5 NE KEISER             35.73N 90.03W
04/19/2011                   MISSISSIPPI        AR   NWS EMPLOYEE

            STORAGE BUILDINGS WERE BLOWN OVER...A GAS STATION AWNING
            WAS BLOWN OFF...AND 2 GAS PUMPS AT A SEPARATE GAS STATION
            WERE BLOWN OVER. DAMAGE WAS JUST WEST OF OSCEOLA.

1052 PM     TSTM WND DMG     FRAYSER                 35.22N 89.97W
04/19/2011                   SHELBY             TN   TRAINED SPOTTER

            A LARGE TREE FELL ONTO A HOUSE NEAR FRAYSER BLVD. MEDIA
            IS REPORTING OTHER DAMAGE IN THE AREA.

1103 PM     TSTM WND DMG     BRIGHTON                35.48N 89.74W
04/19/2011                   TIPTON             TN   TRAINED SPOTTER

            SEVERAL TREES DOWN IN THE TOWN OF BRIGHTON.

1130 PM     TSTM WND DMG     5 NNW TRENTON           36.05N 88.97W
04/19/2011                   GIBSON             TN   EMERGENCY MNGR

            TREES DOWN BETWEEN HWY 185 AND HWY 45 NEAR THE COUNTRY
            CLUB.

&&

RRH

Local storm report, Apr 20, 2:03 PM CDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
203 PM CDT WED APR 20 2011

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

0200 PM     HAIL             VERONA                  34.19N 88.72W
04/20/2011  E1.50 INCH       LEE                MS   FIRE DEPT/RESCUE

&&

BORGHOFF

Local storm report, Apr 20, 2:12 PM CDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
212 PM CDT WED APR 20 2011

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

0205 PM     HAIL             VERONA                  34.19N 88.72W
04/20/2011  E1.00 INCH       LEE                MS   TRAINED SPOTTER

            QUARTER SIZE HAIL REPORTED AT THE INTERSECTION OF HWY 45
            AND MAIN STREET IN VERONA.

&&

RRH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 9:43 PM CDT	Severe Thunderstorm Warning	MEG	Coahoma	47 min
Apr 19, 10:22 PM CDT	Severe Thunderstorm Warning	MEG	Coahoma, DeSoto, Panola, Quitman, Tate, Tunica	38 min
Apr 19, 10:55 PM CDT	Tornado Warning	MEG	DeSoto	29 min
Apr 19, 10:59 PM CDT	Severe Thunderstorm Warning	MEG	Benton, DeSoto, Lafayette, Marshall, Panola, Tate and 1 more	46 min
Apr 19, 11:22 PM CDT	Severe Thunderstorm Warning	MEG	Benton, DeSoto, Marshall, Tate, Tippah, Tunica	38 min
Apr 19, 11:45 PM CDT	Severe Thunderstorm Warning	MEG	Alcorn, Benton, Tippah, Tishomingo	45 min
Apr 19, 11:51 PM CDT	Severe Thunderstorm Warning	MEG	Benton, DeSoto, Marshall, Tate, Tippah	39 min
Apr 20, 12:32 AM CDT	Severe Thunderstorm Warning	MEG	Benton, Marshall	43 min
Apr 20, 12:55 AM CDT	Severe Thunderstorm Warning	MEG	Coahoma, Quitman, Tunica	50 min
Apr 20, 12:57 AM CDT	Severe Thunderstorm Warning	MEG	Coahoma	48 min
Apr 20, 1:36 AM CDT	Severe Thunderstorm Warning	MEG	Lafayette, Marshall, Panola, Quitman, Tate, Tunica	39 min
Apr 20, 1:39 AM CDT	Severe Thunderstorm Warning	MEG	Coahoma, Panola, Quitman	51 min
Apr 20, 1:48 AM CDT	Severe Thunderstorm Warning	MEG	Coahoma, Panola, Quitman, Tallahatchie, Yalobusha	42 min
Apr 20, 2:29 AM CDT	Severe Thunderstorm Warning	MEG	Lafayette, Panola, Quitman, Tallahatchie, Yalobusha	46 min
Apr 20, 2:43 AM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Lafayette, Lee, Pontotoc, Prentiss, Union	47 min
Apr 20, 3:10 AM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Chickasaw, Itawamba, Lee, Monroe, Pontotoc and 1 more	50 min
Apr 20, 3:18 AM CDT	Flash Flood Watch	MEG	Alcorn, Benton, Calhoun, Chickasaw, Coahoma, DeSoto and 16 more	30 hr
Apr 20, 3:29 AM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Chickasaw, Itawamba, Lee, Monroe, Pontotoc	46 min
Apr 20, 3:54 AM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Monroe	51 min
Apr 20, 3:59 AM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Chickasaw, Monroe, Pontotoc	46 min
Apr 20, 4:36 AM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Chickasaw, Tallahatchie, Yalobusha	39 min
Apr 20, 4:39 AM CDT	Severe Thunderstorm Warning	MEG	Chickasaw, Itawamba, Monroe	51 min
Apr 20, 4:56 AM CDT	Flash Flood Warning	MEG	Calhoun, Chickasaw, Monroe	2 hr
Apr 20, 5:40 AM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Lee, Monroe	36 min
Apr 20, 8:16 AM CDT	Severe Thunderstorm Warning	MEG	Chickasaw	27 min
Apr 20, 10:10 AM CDT	Severe Thunderstorm Warning	MEG	Lafayette, Panola	50 min
Apr 20, 10:58 AM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Lafayette, Yalobusha	47 min
Apr 20, 11:27 AM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Chickasaw, Lafayette, Pontotoc	63 min
Apr 20, 12:24 PM CDT	Severe Thunderstorm Warning	MEG	Chickasaw, Lee, Monroe, Pontotoc	51 min
Apr 20, 12:57 PM CDT	Flash Flood Warning	MEG	Chickasaw, Lee, Monroe, Pontotoc	3 hr
Apr 20, 1:05 PM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Chickasaw	55 min
Apr 20, 1:13 PM CDT	Severe Thunderstorm Warning	MEG	Chickasaw, Lee, Monroe	62 min
Apr 20, 1:44 PM CDT	Severe Thunderstorm Warning	MEG	Monroe	26 min
Apr 20, 1:54 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Lee	20 min
Apr 20, 3:34 PM CDT	Severe Thunderstorm Warning	MEG	Chickasaw	24 min
Apr 20, 4:20 PM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Lee, Pontotoc, Union	40 min
Apr 20, 4:22 PM CDT	Severe Thunderstorm Warning	MEG	Alcorn, Prentiss, Tishomingo	53 min
Apr 20, 4:51 PM CDT	Severe Thunderstorm Warning	MEG	Tunica	54 min
Apr 20, 4:54 PM CDT	Flash Flood Warning	MEG	Coahoma, Tunica	7 hr
Apr 20, 4:54 PM CDT	Severe Thunderstorm Warning	MEG	Alcorn, Tishomingo	36 min
Apr 20, 5:06 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Lee, Pontotoc, Prentiss, Union	39 min
Apr 20, 5:31 PM CDT	Severe Thunderstorm Warning	MEG	DeSoto, Panola, Quitman, Tate, Tunica	44 min
Apr 20, 5:34 PM CDT	Severe Thunderstorm Warning	MEG	Chickasaw, Itawamba, Lee, Monroe, Pontotoc	41 min
Apr 20, 5:39 PM CDT	Severe Thunderstorm Warning	MEG	Coahoma, Panola, Quitman, Tate, Tunica	51 min
Apr 20, 5:43 PM CDT	Severe Thunderstorm Warning	MEG	Lafayette, Marshall, Panola, Union	47 min
Apr 20, 5:44 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Lee, Prentiss, Tishomingo	46 min
Apr 20, 5:47 PM CDT	Severe Thunderstorm Warning	MEG	Lafayette, Marshall, Panola, Tate	43 min
Apr 20, 6:22 PM CDT	Severe Thunderstorm Warning	MEG	Benton, Lafayette, Marshall, Panola, Tate, Union	38 min
Apr 20, 6:23 PM CDT	Flash Flood Warning	MEG	Coahoma, DeSoto, Lafayette, Marshall, Panola, Quitman and 2 more	5 hr
Apr 20, 6:25 PM CDT	Severe Thunderstorm Warning	MEG	Benton, Lafayette, Marshall, Tippah, Union	50 min
Apr 20, 6:31 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Tishomingo	29 min
Apr 20, 6:43 PM CDT	Severe Thunderstorm Warning	MEG	Benton, Lafayette, Marshall, Panola, Pontotoc, Tippah and 1 more	47 min
Apr 20, 6:52 PM CDT	Severe Thunderstorm Warning	MEG	Panola, Quitman, Tallahatchie, Yalobusha	38 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2011 Every severe thunderstorm warning in 2011

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.