Alert archive / Mississippi / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 225, NWS Jackson, MS

April 20, 2011Leflore County, Sunflower County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Apr 20, 2011, 7:43 PM CDT for Leflore County, Sunflower 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 20, 2011, 7:43 PM CDT (00:43 UTC)
Expired: Apr 20, 2011, 8:14 PM CDT
In force: 31 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties Leflore County, MS, Sunflower County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 159 km from the middle of the area, began a volume at 00:43 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.

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

Little Rock, AR (KLZK), launched 00:00Z, 0.7 hours before the alert went out and 141 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 749 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 240 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

856 
WUUS54 KJAN 210043
SVRJAN
MSC083-133-210130-
/O.NEW.KJAN.SV.W.0225.110421T0043Z-110421T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
743 PM CDT WED APR 20 2011

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN LEFLORE COUNTY IN NORTH CENTRAL MISSISSIPPI...
  CENTRAL SUNFLOWER COUNTY IN NORTHWEST MISSISSIPPI...
  THIS INCLUDES THE CITY OF RULEVILLE...

* UNTIL 830 PM CDT

* AT 744 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  BLAINE MOVING NORTHEAST AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SUNNYSIDE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS OF 60 MPH CAN BRING DOWN TREES...POSSIBLY RESULTING IN INJURY
AND PROPERTY DAMAGE. ROOFS OF MOBILE HOMES AND OUTBUILDINGS COULD BE
DAMAGED...AND MINOR ROOF DAMAGE TO WELL BUILT HOMES AND STRUCTURES
COULD OCCUR.

THE HAIL BEING PRODUCED BY THIS SEVERE THUNDERSTORM WILL LIKELY
DAMAGE CARS AND ROOFS. PEOPLE WHO ARE OUT OF DOORS SHOULD MOVE INSIDE
A STRUCTURE IMMEDIATELY.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES. WHILE NOT IMMEDIATELY
LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT
QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS
A BASEMENT OR SMALL INTERIOR ROOM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT
THURSDAY MORNING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND
NORTHERN MISSISSIPPI.

&&

LAT...LON 3363 9021 3350 9062 3362 9070 3362 9066
      3369 9066 3382 9038
TIME...MOT...LOC 0044Z 241DEG 23KT 3363 9057

$$

MRM

3 follow-up statements

639 
WWUS54 KJAN 210057
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
757 PM CDT WED APR 20 2011

MSC083-133-210130-
/O.CON.KJAN.SV.W.0225.000000T0000Z-110421T0130Z/
SUNFLOWER MS-LEFLORE MS-
757 PM CDT WED APR 20 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR NORTHWESTERN LEFLORE AND EAST CENTRAL SUNFLOWER COUNTIES...

AT 757 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
DODDSVILLE MOVING NORTHEAST AT 25 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SCHLATER AND SUNNYSIDE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS OF 60 MPH CAN BRING DOWN TREES...POSSIBLY RESULTING IN INJURY
AND PROPERTY DAMAGE. ROOFS OF MOBILE HOMES AND OUTBUILDINGS COULD BE
DAMAGED...AND MINOR ROOF DAMAGE TO WELL BUILT HOMES AND STRUCTURES
COULD OCCUR.

THE HAIL BEING PRODUCED BY THIS SEVERE THUNDERSTORM WILL LIKELY
DAMAGE CARS AND ROOFS. PEOPLE WHO ARE OUT OF DOORS SHOULD MOVE INSIDE
A STRUCTURE IMMEDIATELY.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES. WHILE NOT IMMEDIATELY
LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT
QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS
A SMALL INTERIOR ROOM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT
THURSDAY MORNING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND
NORTHERN MISSISSIPPI.

&&

LAT...LON 3363 9021 3355 9047 3360 9052 3365 9055
      3372 9060 3382 9038
TIME...MOT...LOC 0057Z 241DEG 23KT 3367 9048

$$

MRM

858 
WWUS54 KJAN 210109 RRA
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
809 PM CDT WED APR 20 2011

MSC133-210119-
/O.CAN.KJAN.SV.W.0225.000000T0000Z-110421T0130Z/
SUNFLOWER MS-
809 PM CDT WED APR 20 2011

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL SUNFLOWER COUNTY
IS CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT
THURSDAY MORNING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND
NORTHERN MISSISSIPPI.

LAT...LON 3363 9039 3368 9043 3378 9046 3382 9038
      3363 9021 3359 9034
TIME...MOT...LOC 0109Z 241DEG 23KT 3367 9033

$$

MSC083-210130-
/O.CON.KJAN.SV.W.0225.000000T0000Z-110421T0130Z/
LEFLORE MS-
809 PM CDT WED APR 20 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR NORTHWESTERN LEFLORE COUNTY...

AT 809 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
SCHLATER MOVING NORTHEAST AT 25 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SUNNYSIDE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS OF 60 MPH CAN BRING DOWN TREES...POSSIBLY RESULTING IN INJURY
AND PROPERTY DAMAGE. ROOFS OF MOBILE HOMES AND OUTBUILDINGS COULD BE
DAMAGED...AND MINOR ROOF DAMAGE TO WELL BUILT HOMES AND STRUCTURES
COULD OCCUR.

THE HAIL BEING PRODUCED BY THIS SEVERE THUNDERSTORM WILL LIKELY
DAMAGE CARS AND ROOFS. PEOPLE WHO ARE OUT OF DOORS SHOULD MOVE INSIDE
A STRUCTURE IMMEDIATELY.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES. WHILE NOT IMMEDIATELY
LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT
QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS
A SMALL INTERIOR ROOM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT
THURSDAY MORNING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND
NORTHERN MISSISSIPPI.

&&

LAT...LON 3363 9039 3368 9043 3378 9046 3382 9038
      3363 9021 3359 9034
TIME...MOT...LOC 0109Z 241DEG 23KT 3367 9033

$$

MRM

551 
WWUS54 KJAN 210114
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
814 PM CDT WED APR 20 2011

MSC083-210124-
/O.CAN.KJAN.SV.W.0225.000000T0000Z-110421T0130Z/
LEFLORE MS-
814 PM CDT WED APR 20 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN LEFLORE COUNTY IS
CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT
THURSDAY MORNING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND
NORTHERN MISSISSIPPI.

LAT...LON 3363 9039 3368 9043 3378 9046 3382 9038
      3363 9021 3359 9034
TIME...MOT...LOC 0114Z 241DEG 23KT 3372 9037

$$


MM

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 Jackson, MS wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 20, 5:27 PM CDT, 2 hours 16 minutes earlier.

Area forecast discussion, Apr 20, 5:27 PM CDT, 2 hours 16 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
527 PM CDT WED APR 20 2011

.DISCUSSION...SHOWERS AND THUNDERSTORMS CONTINUE TO DEVELOP NORTH OF
THE AREA AND OVER EAST CENTRAL MISSISSIPPI THIS AFTERNOON AND EARLY
EVENING. THE BOUNDARY STILL REMAINS FROM GREENWOOD BACK INTO
NORTHEAST TEXAS...WITH SHOWERS AND THUNDERSTORMS FIRING ALONG THE
BOUNDARY AND SLOWLY MOVING ACROSS EAST CENTRAL MISSISSIPPI. MUCH OF THE
ACTIVITY TO THE WEST SEEMS TO BE MOVING NORTH AND EAST WITH A WEAK
UPPER WAVE. DEVELOPMENT TO THE SOUTH HAS BEEN SLOW. THE MODELS
CONTINUE TO SUGGEST THE BOUNDARY WILL SINK FURTHER SOUTH AND STORMS
WILL DEVELOP OVER THE NORTHERN HALF OF THE AREA. WITH THE BOUNDARY
STALLED AND THE WAVE TO THE WEST NOT HELPING TO MOVE THE SYSTEM OUT
OF THE AREA...IT IS UNCLEAR HOW FAR SOUTH TO EXPECT THUNDERSTORM
ACTIVITY. WILL NOT ADJUST THE FLASH FLOOD WARNING AT THIS
TIME...SINCE STORMS HAVE GENERALLY BEEN EAST OF THE RIVER ALONG THE
HIGHWAY 82 CORRIDOR. WITH THE UNCERTAINTY IN THE MOVEMENT OF THE
BOUNDARY ALL COUNTIES WILL LIKELY REMAIN IN THE SEVERE THUNDERSTORM
WATCH FOR THE DURATION.

THE LOCAL MODELS WERE SUGGESTING THE BEST WIND AND HAIL POTENTIAL
WILL REMAIN OVER EAST CENTRAL MISSISSIPPI. THERE WERE SOME BREAKS IN
THE CLOUDS...WHERE TEMPERATURES HAVE REACHED IN THE MID AND UPPER
80S. THE BEST INSTABILITY WAS OVER THE EASTERN HALF OF THE AREA...SO
EXPECTING STORMS OVER THE AREA TO INTENSIFY QUICKLY THROUGH AT LEAST
SUNSET. ANTICIPATING THE INSTABILITY TO CONTINUE TO LESSEN THROUGH
THE EVENING...BUT THE FLOODING POTENTIAL WILL LIKELY INCREASE.
SHOWERS WERE FINALLY STARTING TO DEVELOP TO THE SOUTH AND
WEST...BASICALLY RIGHT ON THE BOUNDARY. THE SOUTHERLY FLOW ON THE
RADAR SHOWS THE AREA OF CONVERGENCE...GENERALLY STRETCHING FROM
BASTROP LOUISIANA TO TCHULA TO STARKVILLE...SO ACTIVITY WILL LIKELY
INCREASE SHORTLY AND CONTINUE FOR THE NEXT FEW HOURS.

FOR THE FORECAST...MAINTAINED LIKELY POPS ALONG THE HIGHWAY 82
CORRIDOR THROUGH TONIGHT...EXPECTING THE BEST STORMS AND HEAVY RAIN
TO REMAIN OVER THAT AREA. THE BOUNDARY/UPPER TROUGH AXIS WILL SHIFT
NORTH THURSDAY...AS THE RIDGE OVER THE SOUTHEAST US RETROGRADES.
LOOKING FOR THE RAIN TO MOVE OUT OF THE AREA BY THURSDAY
AFTERNOON...WITH ONLY ISOLATED ACTIVITY LINGERING THROUGH 03-6Z.
MAINTAINED HEAVY RAINFALL WORDING...WITH SO MUCH MOISTURE FLOWING
INTO THE AREA. WILL HAVE TO LOOK AT THE EXTENDING THE FFA THROUGH 00Z
THURSDAY. HIGH PRESSURE TAKES OVER BY FRIDAY AND THE AREA WILL BE
GENERALLY DRY THROUGH THE WEEKEND. THERE MAY BE SOME ISOLATED SHOWERS
AND THUNDERSTORMS.

WENT WITH GUIDANCE TEMPS...MID TO UPPER 80S SEEM OK FOR THE NEXT FEW
DAYS. WILL SEE SOME VERY WARM LOWS WITH VALUES IN THE MID TO UPPER
60S.

&&

.AVIATION...
A FRONTAL BOUNDARY REMAINS STALLED ACROSS NORTHERNWESTERN MS. SHWRS/TSTMS
WILL PERSIST ACROSS NE MS...WITH DEVELOPMENT BACK TO THE WEST APPROACHING
LATE THIS AFTERNOON INTO THE EVENING. HEAVY RAIN...HAIL AND GUSTY
WINDS XPCTD INVOF THIS ACTIVITY. VFR CONDS WL PERSIST FOR LOCATIONS
ALONG AND S OF I-20 TODAY...WITH MVFR/OCSNL VFR CIG LIKELY CONTINUING
ACROSS NRN MS THRU THE DAY. OUTSIDE OF STORMS SFC WINDS WL BE OUT OF
THE SOUTH IN THE 7-12KT RANGE...WITH A FEW GUSTS TO 18KTS PSBL ACROSS
SRN MS. THE CHANCE FOR SHWRS/TSTMS WL PERSIST N OF I-20 THRU THE
NIGHT TONIGHT. /BK/

&&

.PRELIMINARY POINT TEMPS/POPS...
JACKSON       66  84  67  86 /  33  18  10  11
MERIDIAN      64  85  62  86 /  40  19  13  12
VICKSBURG     65  85  66  87 /  30  19   9  11
HATTIESBURG   68  87  65  87 /  16  14   9   5
NATCHEZ       67  86  65  84 /  20  15   9   9
GREENVILLE    62  81  65  86 /  59  36  16  13
GREENWOOD     61  82  66  86 /  61  37  17  14

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...FLASH FLOOD WATCH THROUGH LATE TONIGHT FOR MSZ018-019-025>039-
     044>046.

LA...NONE.
AR...NONE.
&&

07/BK/

Hazardous weather outlook, Apr 20, 4:27 PM CDT, 3 hours 16 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
427 PM CDT WED APR 20 2011

LAZ024-026-MSZ059>066-072>074-212130-
CATAHOULA-CONCORDIA-JEFFERSON-ADAMS-FRANKLIN MS-LINCOLN-LAWRENCE-
JEFFERSON DAVIS-COVINGTON-JONES-MARION-LAMAR-FORREST-
427 PM CDT WED APR 20 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL MISSISSIPPI...
NORTHEAST LOUISIANA...AND EXTREME SOUTHEAST ARKANSAS.

.DAY ONE...TONIGHT AND THURSDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...THURSDAY NIGHT THROUGH TUESDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER CALL TO ACTION STATEMENT...
THE ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND
EMERGENCY MANAGEMENT PERSONNEL IN SUPPORT OF SEVERE WEATHER
OPERATIONS IS NOT EXPECTED THROUGH NEXT TUESDAY.

ARZ074-075-LAZ007>009-015-016-023-025-MSZ018-019-025>058-212130-
ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-RICHLAND-
MADISON LA-FRANKLIN LA-TENSAS-BOLIVAR-SUNFLOWER-LEFLORE-GRENADA-
CARROLL-MONTGOMERY-WEBSTER-CLAY-LOWNDES-CHOCTAW-OKTIBBEHA-
WASHINGTON-HUMPHREYS-HOLMES-ATTALA-WINSTON-NOXUBEE-ISSAQUENA-
SHARKEY-YAZOO-MADISON MS-LEAKE-NESHOBA-KEMPER-WARREN-HINDS-RANKIN-
SCOTT-NEWTON-LAUDERDALE-CLAIBORNE-COPIAH-SIMPSON-SMITH-JASPER-
CLARKE-
427 PM CDT WED APR 20 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL MISSISSIPPI...
NORTHEAST LOUISIANA...AND EXTREME SOUTHEAST ARKANSAS.

.DAY ONE...TONIGHT AND THURSDAY

SCATTERED SEVERE STORMS WILL BE POSSIBLE ACROSS THE ARKLAMISS THIS
AFTERNOON AND EVENING. A SLOW MOVING COLD FRONT WILL TRACK ACROSS THE
MOIST AND UNSTABLE ATMOSPHERE. THE PRIMARY RISKS ARE LARGE HAIL TO
THE SIZE OF GOLF BALLS AND DAMAGING WINDS GUSTS UP TO 70 MPH. A FEW
TORNADOES CAN BE RULED OUT...ESPECIALLY FOR EAST CENTRAL MISSISSIPPI.
WHILE SEVERE THUNDERSTORMS ARE POSSIBLE FOR MUCH OF THE AREA NORTH
OF THE HIGHWAY 84 CORRIDOR...THE MOST INTENSE STORMS WILL BE NORTH OF
INTERSTATE 20.

IN ADDITION TO THE RISK OF SEVERE STORMS...HEAVY RAIN AND LOCALIZED
FLASH FLOODING WILL BE LIKELY FOR MUCH OF THE REGION. MANY AREAS ALONG A
LINE FROM HOLLANDALE TO DURANT TO MACON HAVE RECEIVED RAINFALL
AMOUNTS OF 2 TO 4 INCHES. HEAVY DOWNPOURS HAVE ALREADY CAUSED ROAD
CLOSURES IN A FEW COMMUNITIES. ADDITIONAL RAINFALL AMOUNTS OF 2 TO 4
INCHES...WITH ISOLATED AMOUNTS NEAR 6 INCHES WILL BE POSSIBLE THROUGH
THURSDAY MORNING.

.DAYS TWO THROUGH SEVEN...THURSDAY NIGHT THROUGH TUESDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER CALL TO ACTION STATEMENT...
THE ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND
EMERGENCY MANAGEMENT PERSONNEL IN SUPPORT OF SEVERE WEATHER
OPERATIONS IS NOT EXPECTED THROUGH NEXT TUESDAY.

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT
WWW.SRH.NOAA.GOV/JAN. THIS INCLUDES THE GRAPHICAL HAZARDOUS
WEATHER OUTLOOK.

In the hours before

Local storm report, Apr 20, 7:09 PM CDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
709 PM CDT WED APR 20 2011

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

0700 PM     HAIL             SWEATMAN                33.63N 89.58W
04/20/2011  E2.50 INCH       MONTGOMERY         MS   EMERGENCY MNGR

&&

DL

Local storm report, Apr 20, 7:10 PM CDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
710 PM CDT WED APR 20 2011

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

0655 PM     HAIL             VAIDEN                  33.33N 89.75W
04/20/2011  E1.00 INCH       CARROLL            MS   LAW ENFORCEMENT

&&

DL

Local storm report, Apr 20, 7:11 PM CDT, 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
711 PM CDT WED APR 20 2011

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

0705 PM     HAIL             5 WSW GRENADA           33.76N 89.89W
04/20/2011  E1.00 INCH       GRENADA            MS   EMERGENCY MNGR

            REPORTED ALONG GILLON RD

&&

DL

Special weather statement, Apr 20, 7:35 PM CDT, 8 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
735 PM CDT WED APR 20 2011

MSZ035-036-042-210105-
HOLMES MS-HUMPHREYS MS-YAZOO MS-
735 PM CDT WED APR 20 2011

A STRONG THUNDERSTORM CAPABLE OF PRODUCING PEA TO DIME SIZE HAIL AND
40 TO 50 MPH WINDS WAS LOCATED 4 MILES NORTHWEST OF THORNTON AT 735
PM CDT...MOVING NORTHEAST AT 30 MPH.

THIS STORM COULD INTENSIFY AND BECOME SEVERE RAPIDLY.

PEOPLE IN EXTREME NORTH CENTRAL YAZOO...EAST CENTRAL HUMPHREYS AND
WEST CENTRAL HOLMES COUNTIES SHOULD MONITOR THIS STORM CLOSELY.

LAT...LON 3328 9023 3312 9012 3302 9035 3318 9043
TIME...MOT...LOC 0035Z 239DEG 25KT 3312 9036

17

Local storm report, Apr 20, 7:35 PM CDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
735 PM CDT WED APR 20 2011

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

0710 PM     TSTM WND DMG     2 N NORTH CARROLLTON    33.55N 89.92W
04/20/2011                   CARROLL            MS   EMERGENCY MNGR

            TREE DOWN ON TOP OF A MOBILE HOME

&&

GERARD

Local storm report, Apr 20, 7:38 PM CDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
738 PM CDT WED APR 20 2011

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

0735 PM     HAIL             KILMICHAEL              33.44N 89.57W
04/20/2011  E1.75 INCH       MONTGOMERY         MS   EMERGENCY MNGR

&&

DL

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 20, 7:00 PM CDT	Tornado Warning	JAN	Montgomery, Webster	60 min
Apr 20, 7:06 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Holmes, Leflore	39 min
Apr 20, 7:11 PM CDT	Severe Thunderstorm Warning	JAN	Clay, Lowndes, Noxubee, Oktibbeha	49 min
Apr 20, 7:13 PM CDT	Tornado Warning	JAN	Carroll, Choctaw, Montgomery, Webster	62 min
Apr 20, 7:35 PM CDT	Special Weather Statement	JAN	Holmes	30 min
Apr 20, 7:40 PM CDT	Tornado Warning	JAN	Carroll	46 min
Apr 20, 7:48 PM CDT	Tornado Warning	JAN	Lowndes	57 min
Apr 20, 7:52 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Holmes, Madison, Yazoo	53 min
Apr 20, 8:01 PM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Grenada, Montgomery, Webster	44 min
Apr 20, 8:03 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Holmes	16 min
Apr 20, 8:32 PM CDT	Tornado Warning	JAN	Attala, Choctaw, Oktibbeha, Winston	43 min
Apr 20, 8:33 PM CDT	Flash Flood Warning	JAN	Choctaw, Clay, Lowndes, Montgomery, Oktibbeha, Webster	3 hr
Apr 20, 8:44 PM CDT	Tornado Warning	JAN	Lowndes	61 min
Apr 20, 8:46 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Leake, Madison	22 min
Apr 20, 8:48 PM CDT	Severe Thunderstorm Warning	JAN	Clay, Lowndes, Oktibbeha	57 min
Apr 20, 9:01 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee, Winston	59 min
Apr 20, 9:18 PM CDT	Severe Thunderstorm Warning	JAN	Lowndes, Noxubee	57 min
Apr 20, 9:37 PM CDT	Special Weather Statement	JAN	Hinds	28 min
Apr 20, 9:46 PM CDT	Flash Flood Warning	JAN	Noxubee	3 hr
Apr 20, 9:49 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Madison, Rankin	41 min
Apr 20, 10:05 PM CDT	Areal Flood Warning	JAN	Carroll, Grenada, Montgomery	12 hr
Apr 20, 10:25 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Madison, Rankin, Scott	50 min
Apr 20, 11:10 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey	65 min
Apr 20, 11:28 PM CDT	Flash Flood Warning	JAN	Lowndes	3 hr
Apr 20, 11:28 PM CDT	Special Weather Statement	JAN	Winston	32 min
Apr 20, 11:33 PM CDT	Severe Thunderstorm Warning	JAN	Scott	42 min
Apr 20, 11:52 PM CDT	Severe Thunderstorm Warning	JAN	Sharkey, Yazoo	37 min
Apr 21, 12:07 AM CDT	Severe Thunderstorm Warning	JAN	Newton, Scott	19 min
Apr 21, 12:47 AM CDT	Severe Thunderstorm Warning	JAN	Kemper, Neshoba	20 min
Apr 21, 12:57 AM CDT	Special Weather Statement	JAN	Scott	28 min
Apr 21, 1:06 AM CDT	Special Weather Statement	JAN	Madison	29 min
Apr 21, 1:42 AM CDT	Flash Flood Warning	JAN	Kemper, Neshoba, Noxubee, Winston	2 hr
Apr 21, 2:18 AM CDT	Special Weather Statement	JAN	Lauderdale	32 min
Apr 21, 2:21 AM CDT	River Flood Warning	JAN	Carroll, Leflore	41 hr
Apr 21, 6:37 AM CDT	Special Weather Statement	JAN	Sharkey	33 min
Apr 21, 6:50 AM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey, Yazoo	40 min
Apr 21, 7:16 AM CDT	Special Weather Statement	JAN	Warren	19 min
Apr 21, 7:20 AM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Warren	40 min
Apr 21, 7:44 AM CDT	Special Weather Statement	JAN	Yazoo	31 min
Apr 21, 7:48 AM CDT	Severe Thunderstorm Warning	JAN	Yazoo	42 min
Apr 21, 7:59 AM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Warren, Yazoo	49 min
Apr 21, 8:03 AM CDT	River Flood Warning	JAN	Noxubee	3 days
Apr 21, 8:47 AM CDT	Special Weather Statement	JAN	Yazoo	18 min
Apr 21, 9:11 AM CDT	Severe Thunderstorm Warning	JAN	Yazoo	22 min
Apr 21, 9:14 AM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey	45 min
Apr 21, 9:50 AM CDT	Flash Flood Warning	JAN	Yazoo	115 min
Apr 21, 10:31 AM CDT	Special Weather Statement	JAN	Hinds, Warren, Yazoo	29 min
Apr 21, 10:53 AM CDT	Severe Thunderstorm Warning	JAN	Hinds, Madison, Rankin	67 min
Apr 21, 11:46 AM CDT	Special Weather Statement	JAN	Copiah	29 min
Apr 21, 11:50 AM CDT	Severe Thunderstorm Warning	JAN	Copiah	55 min
Apr 21, 1:03 PM CDT	Special Weather Statement	JAN	Franklin, Lincoln	32 min
Apr 21, 1:19 PM CDT	Special Weather Statement	JAN	Neshoba, Newton	31 min
Apr 21, 1:26 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson Davis, Lawrence	49 min
Apr 21, 1:27 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale, Newton	63 min
Apr 21, 1:45 PM CDT	Special Weather Statement	JAN	Lincoln	30 min
Apr 21, 2:13 PM CDT	Special Weather Statement	JAN	Jefferson Davis, Lawrence	32 min
Apr 21, 2:14 PM CDT	Tornado Warning	JAN	Jasper	12 min
Apr 21, 2:47 PM CDT	Special Weather Statement	JAN	Covington, Marion	28 min
Apr 21, 3:09 PM CDT	Special Weather Statement	JAN	Jones, Lamar, Marion	31 min
Apr 21, 3:35 PM CDT	Special Weather Statement	JAN	Jones, Lamar	30 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; radar from the NEXRAD Level II archive.