Alert archive / Louisiana / Tornado Warnings in 2011

Tornado Warning 123, NWS Jackson, MS

April 27, 2011East Carroll Parish, West Carroll Parish, Louisiana; Issaquena County, Sharkey County, Mississippi

NWS Jackson, MS issued this tornado warning at Apr 27, 2011, 12:08 AM CDT for East Carroll Parish, West Carroll Parish, Louisiana; Issaquena County, Sharkey County, Mississippi. It was in force for 67 min. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 27, 2011, 12:08 AM CDT (05:08 UTC)
Expired: Apr 27, 2011, 1:15 AM CDT
In force: 67 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties East Carroll Parish, LA, West Carroll Parish, LA, Issaquena County, MS, Sharkey County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 100 km from the middle of the area, began a volume at 05:11 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.

What was reported inside it

Time	Report	Where	Remark
Apr 27, 12:20 AM CDT	TSTM WND DMG	6 Sw Lake Providence, LA	A TRACTOR SHED WAS DESTROYED AND THE FIRE STATION IN THE BOWIE COMMUNITY WAS HEAVILY DAMAGED. TREES AND POWER LINES WERE DOWN AS WELL...POSSIBLE TORNADO.
Apr 27, 12:20 AM CDT	TSTM WND DMG	Lake Providence, LA	TREES AND POWERLINES DOWN PARISH WIDE. TREE DOWN ON A HOUSE IN LAKE PROVIDENCE. STILL GETTING REPORTS.
Apr 27, 12:30 AM CDT	TSTM WND DMG	6 S Mayersville, MS	4 HOMES WITH MINOR DAMAGE...1 CHURCH WITH MINOR DAMAGE AND TREES DOWN ACROSS THE COUNTY. TIME ESTIMATED
Apr 27, 12:35 AM CDT	TORNADO 0	2 Sw Cary, MS	A COUPLE TREES WERE DOWN ALONG WITH MANY LARGE LIMBS. SOME SHINGLES WERE OFF HOUSES AND A LARGE SECTION OF TIN WAS PEALED OFF A TRACTOR SHED. MAX WINDS 75 MPH...2 MI LONG...100 YDS WIDE.
Apr 27, 12:47 AM CDT	TSTM WND DMG	Rolling Fork, MS	A FEW TREES WERE BLOWN DOWN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this tornado warning; the first came 27 minutes after it went out.

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 26, 9:33 PM CDT	Tornado Watch PDS	SPC	7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 5.1 hours before the alert went out and 90 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: 1600 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1229 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 165 m²/s²
0-3 km storm-relative helicity: 229 m²/s²
Significant tornado parameter: 2.0
Supercell composite: 12.6

Open this sounding in Storm Lab

The text

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

446 
WFUS54 KJAN 270508
TORJAN
LAC035-123-MSC055-125-270615-
/O.NEW.KJAN.TO.W.0123.110427T0508Z-110427T0615Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1208 AM CDT WED APR 27 2011

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CARROLL PARISH IN NORTHEAST LOUISIANA...
  THIS INCLUDES THE CITIES OF...TRANSYLVANIA...LAKE PROVIDENCE...
  SOUTHEASTERN WEST CARROLL PARISH IN NORTHEAST LOUISIANA...
  ISSAQUENA COUNTY IN WEST CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITY OF VALLEY PARK...
  SHARKEY COUNTY IN WEST CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITY OF ROLLING FORK...

* UNTIL 115 AM CDT

* AT 1208 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR DARNELL
  MOVING EAST AT 50 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  ALSATIA...SHELBURN...FITLER...ONWARD...GRACE...NITTA YUMA AND
  ANGUILLA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU
SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION
NOW.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING GOLF 
BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS IN EXCESS OF 70 
MPH!

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT WEDNESDAY MORNING
FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND NORTHERN
MISSISSIPPI.

&&

LAT...LON 3307 9074 3289 9069 3282 9075 3281 9070
      3276 9069 3276 9072 3273 9073 3270 9066
      3267 9068 3269 9069 3268 9071 3265 9071
      3254 9145 3259 9144 3259 9151 3281 9152
TIME...MOT...LOC 0508Z 258DEG 42KT 3269 9139

$$

BYB

3 follow-up statements

738 
WWUS54 KJAN 270530
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1230 AM CDT WED APR 27 2011

LAC123-270540-
/O.CAN.KJAN.TO.W.0123.000000T0000Z-110427T0615Z/
WEST CARROLL LA-
1230 AM CDT WED APR 27 2011

...THE TORNADO WARNING FOR SOUTHERN WEST CARROLL PARISH IS
CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT WEDNESDAY MORNING
FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND NORTHERN
MISSISSIPPI.

LAT...LON 3259 9144 3262 9139 3270 9139 3276 9133
      3287 9132 3307 9074 3289 9069 3282 9075
      3281 9070 3276 9069 3276 9072 3273 9073
      3270 9066 3267 9068 3269 9070 3265 9071
      3254 9145
TIME...MOT...LOC 0530Z 258DEG 42KT 3274 9109

$$

LAC035-MSC055-125-270615-
/O.CON.KJAN.TO.W.0123.000000T0000Z-110427T0615Z/
EAST CARROLL LA-SHARKEY MS-ISSAQUENA MS-
1230 AM CDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 115 AM CDT FOR ISSAQUENA
AND SHARKEY COUNTIES...AND EAST CARROLL PARISH...

AT 1230 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
TORNADO WAS LOCATED NEAR FITLER MOVING EAST AT 50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MAYERSVILLE...ONWARD...CARY...VALLEY PARK...ROLLING FORK...NITTA YUMA
AND ANGUILLA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU
SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION
NOW.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING GOLF 
BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS IN EXCESS OF 70 
MPH!

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT WEDNESDAY MORNING
FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND NORTHERN
MISSISSIPPI.

&&

LAT...LON 3259 9144 3262 9139 3270 9139 3276 9133
      3287 9132 3307 9074 3289 9069 3282 9075
      3281 9070 3276 9069 3276 9072 3273 9073
      3270 9066 3267 9068 3269 9070 3265 9071
      3254 9145
TIME...MOT...LOC 0530Z 258DEG 42KT 3274 9109

$$

BYB

396 
WWUS54 KJAN 270547
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1247 AM CDT WED APR 27 2011

LAC035-270557-
/O.CAN.KJAN.TO.W.0123.000000T0000Z-110427T0615Z/
EAST CARROLL LA-
1247 AM CDT WED APR 27 2011

...THE TORNADO WARNING FOR EAST CARROLL PARISH IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT WEDNESDAY MORNING
FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND NORTHERN
MISSISSIPPI.

LAT...LON 3291 9119 3293 9113 3291 9115 3287 9109
      3295 9108 3307 9074 3289 9069 3282 9075
      3281 9070 3276 9069 3273 9073 3268 9067
      3265 9073 3261 9100 3264 9102 3260 9111
      3265 9115 3273 9106 3277 9116 3286 9111
TIME...MOT...LOC 0547Z 255DEG 44KT 3284 9082

$$

MSC055-125-270615-
/O.CON.KJAN.TO.W.0123.000000T0000Z-110427T0615Z/
SHARKEY MS-ISSAQUENA MS-
1247 AM CDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 115 AM CDT FOR ISSAQUENA
AND SHARKEY COUNTIES...

AT 1247 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
TORNADO WAS LOCATED NEAR CARY MOVING EAST AT 50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NITTA
YUMA AND ANGUILLA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU
SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION
NOW.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING GOLF 
BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS IN EXCESS OF 70 
MPH!

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT WEDNESDAY MORNING
FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND NORTHERN
MISSISSIPPI.

&&

LAT...LON 3291 9119 3293 9113 3291 9115 3287 9109
      3295 9108 3307 9074 3289 9069 3282 9075
      3281 9070 3276 9069 3273 9073 3268 9067
      3265 9073 3261 9100 3264 9102 3260 9111
      3265 9115 3273 9106 3277 9116 3286 9111
TIME...MOT...LOC 0547Z 255DEG 44KT 3284 9082

$$

BYB

269 
WWUS54 KJAN 270609
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
109 AM CDT WED APR 27 2011

MSC055-125-270620-
/O.EXP.KJAN.TO.W.0123.000000T0000Z-110427T0615Z/
SHARKEY MS-ISSAQUENA MS-
109 AM CDT WED APR 27 2011

...THE TORNADO WARNING FOR ISSAQUENA AND SHARKEY COUNTIES WILL EXPIRE
AT 115 AM CDT...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT WEDNESDAY MORNING
FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND NORTHERN
MISSISSIPPI.

LAT...LON 3291 9119 3293 9113 3291 9115 3287 9109
      3295 9108 3307 9074 3289 9069 3282 9075
      3281 9070 3276 9069 3273 9073 3268 9067
      3265 9073 3261 9100 3264 9102 3260 9111
      3265 9115 3273 9106 3277 9116 3286 9111
TIME...MOT...LOC 0610Z 255DEG 44KT 3291 9050

$$

BYB

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Apr 26, 8:30 PM CDT, 3 hours 38 minutes earlier.

Area forecast discussion, Apr 26, 8:30 PM CDT, 3 hours 38 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE JACKSON MS
830 PM CDT TUE APR 26 2011

...SIGNIFICANT SEVERE WEATHER EVENT CURRENTLY UNFOLDING...TIMEFRAME
IS FOR TONIGHT INTO WEDNESDAY...

.UPDATE...LATEST SATELLITE IMAGERY SHOWED STRONG UPPER TROUGH OVER THE
SOUTHERN PLAINS...WHICH WAS PROVIDING AN OUTBREAK OF SEVERE WEATHER FROM
THE AROUND THE ARKLATEX TO THE MIDSOUTH REGION. CURRENT FORECAST APPEARS
TO THE ON TRACK FOR SEVERE STORMS TO AFFECT THE REGION AS PREVIOUSLY
DISCUSSED. OVERNIGHT TEMPS LOOK TO BE ON TRACK. LATEST RUC AND SHORT
RANGE ENSEMBLES HAS IT AFFECTING THE REGION LATER TONIGHT./17/

./PREVIOUS DISCUSSION...355 PM CDT
.DISCUSSION...MAJOR SEVERE WEATHER OUTBREAK READY TO UNFOLD FROM THE
ARKLATEX THROUGH OUR FORECAST AREA INTO AL AND TN VALLEY TONIGHT
INTO WED. THIS EVENT WILL BE THE FOCUS OF THIS FORECAST FOR THE NEXT
24HRS THEN A SHIFT TO COOLER AND DRIER CONDITIONS INTO THE WEEKEND.

ACROSS THE AREA TODAY...THE ATMS IS QUICKLY RESPONDING AND
RECOVERING FROM THE MORNING STORM COMPLEX. BASED OFF VAPOR
IMAGERY...SEVERAL DISTURBANCES ARE NOTED IN THE MEAN UPPER TROUGH.
IT IS THESE FEATURES...ALONG WITH THE MAIN DIGGING TROUGH...THAT IS
CAUSING SFC PRESSURES TO LOWER ACROSS TX WHICH IS IN TURN ALLOWING
PRESSURES TO FALL OVER OUR REGION. FORECAST MODELS SEEM TO BEING
WELL WITH THE ABV FEATURES I MENTIONED AND SHOW THE RAPID RESPONSE
TO THE WIND FIELDS AND RECOVERY OF THE ATMS. TAKING THE VARIOUS
MODEL GUID ALONG WITH HI-RES OUTPUT...MULTIPLE ROUNDS OF STORMS
APPEAR POSSIBLE WITH THE VARIOUS EMBEDDED WAVES FROM LATE THIS
AFTERNOON...EVENING/OVERNIGHT AND THEN ON WED.

AS THE ENVIRONMENT RESPONDS TO THE INTENSE UPPER TROUGH AND EMBEDDED
WAVES...SVR WX PARAMETERS WILL INCREASE AND REACH EXTREME LEVELS.
INSTABILITY WILL NOT BE EXTREME...BUT WILL BE STRONG AND AT LEVELS
RATHER HIGH FOR THE OVERNIGHT PERIOD. AS SFC WINDS REMAIN STRONG
OVERNIGHT DUE TO LOWERING PRESSURES...THE BOUNDARY LAYER WILL REMAIN
WELL MIXED. LOOK FOR MLCAPE TO HOLD IN THE 1500-2300 J/KG RANGE WITH
7 TO 8 C/KM LAPSE RATES IN PLACE. A LOW LEVEL CAP WILL DEVELOP AS
WELL AND HELP TO LIMIT THE STORM COVERAGE...ESPECIALLY FOR THE
SOUTHERN HALF. AS FOR SHEAR PARAMETERS...EFFECTIVE SRH VALUES WILL
RAPIDLY INCREASE EARLY THIS EVENING AND INTO WED. THESE SRH VALUES
WILL APPROACH EXTREME LEVELS AND RANGE FROM 400-800 M2/S2. THIS
COMBINATION SHEAR/INSTABILITY IS VERY RARE AND CONDUCIVE FOR
SIGNIFICANT SVR STORMS. ADDITIONALLY...THE POSITION OF THE MID LEVEL
HGHTS...SFC LOW AND VALUE OF THE SFC PRESSURES HISTORICALLY SUPPORT
A SIGNIFICANT EVENT WHEN OVERLAID OVER SUFFICIENT INSTABILITY. THE
AREA WILL ALSO SEE ANOTHER DRY LINE FEATURE PUSH INTO THE REGION AND
TYPICALLY THAT LEADS TO A SUBSTANTIAL EVENT.

THE AREAS UNDER THE GREATEST RISK HAVE NOT CHANGED. LOCATIONS NORTH
OF I-20 CONTINUE TO HAVE THE GREATEST RISK WITH AREAS ALONG AND S OF
I-20 HAVING A MORE ISOLATED RISK. THE SOUTHERN HALF WILL HAVE TO
COMPETE WITH LOW/MID LEVEL CAPPING AND ALL INDICATIONS ARE THAT IT
WILL BE TOUGH TO BREAK THE CAP EVEN IN THE FACE SUCH INTENSE
FORCING. HOWEVER...IF ANYTHING CAN DEVELOP...CONDITIONS WILL BE VERY
FAVORABLE FOR HIGH END SVR STORMS. THE NORTHERN HALF WILL LIKELY
HAVE SOME CAP...BUT IT WON'T BE AS STRONG AND THE DEPTH OF MOISTURE
AND ASCENT WILL ALLOW FOR MULTIPLE ROUNDS OF STORMS. THE REPETITIVE
EXPECTATION OF STORMS WILL LIKELY LEAD TO LOCALLY HEAVY RAINS ACROSS
THE NORTH WITH 3-6 IN TOTALS POSSIBLE. SOME HIGHER AMOUNTS COULD
ALSO OCCUR. DUE TO THIS...HAVE EXPANDED THE AREA OF THE FLASH FLOOD
WATCH.

THE SEVERITY OF THIS EVENT WILL ULTIMATELY COME DOWN TO STORM MODE
(SUPERCELL VS SQUALL LINE). AT THIS TIME...IT SEEMS AS THE CWA WILL
SEE A MIXTURE OF BOTH THROUGH THIS EVENT. WITH ANY SUPERCELL
STORM...THERE WILL EXIST THE POSSIBILITY OF LONG TRACK STRONG
TORNADOES....VERY LARGE HAIL AND DMG WINDS TO 80 MPH. AS FOR ANY
LINE SEGMENT...DMG WINDS TO 80 MPH WILL BE THE PRIMARY RISK WITH
HAIL AND TORNADOES ALSO A SUBSTANTIAL RISK. EITHER WAY AND WHICH
EVER MODE OCCURS...THE RISK FOR SIGNIFICANT SVR WX IS POSSIBLE.

AS FOR TIMING...THERE IS NO SPECIFIC TIME...JUST A LARGE WINDOW OF
FAVORABLE CONDITIONS ACROSS THE N HALF FROM NOW THROUGH WED
AFTERNOON. I WOULD SAY THAT THE SE PORTION OF THE CWA WILL WAIT
UNTIL AT LEAST MID/LATE MORNING AND DURING WED AFTERNOON. I DO FEEL
CONFIDENT THAT THINGS WILL PUSH EAST AND EXIT THE AREA BY 7 PM WED.

IN ADDITION TO ALL THE SVR WX...SFC WINDS WILL INCREASE OVERNIGHT
AND BECOME QUITE GUSTY. THE STRONGEST WINDS LOOK TO OCCUR ON WED AS
THE AREA WARMS AND MIXES DOWN THE INTENSE WINDS JUST OFF THE SFC.
ADDITIONALLY...WHEN THE DRY LINE MOVES ACROSS THE W/NW
AREAS...DEEPER MIXING WILL OCCUR AND HELP TO BRING DOWN WINDS OF
40-50 MPH. FOR NOW...HAVE ISSUED A WIND ADV FOR ALL OF THE AREA.
PORTIONS OF THE W/NW MAY NEED A HIGH WIND WARNING. THIS WILL BE
LOOKED AT CLOSER IN LATER FORECASTS AND UPDATED AS NEEDED.

BEYOND 8 PM TOMORROW...CONDITIONS WILL BE QUIET WITH COOLER AND MORE
SEASONAL CONDITIONS EXPECTED. NEXT REAL CHANCE AT PRECIP LOOKS TO
WAIT UNTIL SUN OR MON. /CME/

&&

.AVIATION...DANGEROUS FLYING WEATHER IS EXPECTED OVER THE NEXT 24-30
HOURS AS SEVERAL ROUNDS OF SEVERE TSRA(LARGE HAIL/SEVERE
TURBULENCE/WIND SHEAR) IMPACT THE ARKLAMISS. FIRST ROUND OF STORMS
IS EXPECTED TO BEGIN OVER THE DELTA AROUND 22-24Z THIS
EVENING...WITH CONTINUED TSRA DEVELOPMENT ACROSS THE DELTA/NORTHERN
MS LATER TONIGHT. SCATTERED TO NUMEROUS SHWRS/TSTMS WILL BEGIN
IMPACTING THE REGION TOMORROW MORNING AS A FRONTAL BOUNDARY
APPROACHES THE REGION FROM THE WEST. VFR CONDS WILL PERSIST THIS
AFTN INTO THIS EVENING WITH A TREND TOWARD MVFR/IFR CIG 07-13Z FOR
AREAS ALONG AND EAST OF I-55. MVFR/OCSNL IFR CIG XPCTD INVOF
SHWR/TSTM ACTIVITY. IN ADDITION... SOUTHERLY SFC WINDS WILL REMAIN
GUSTY THRU THE PERIOD...WITH GUSTS TO 40KTS PSBL AFTER 03Z THIS
EVENING...ESPECIALLY OVER THE DELTA. /BK/

&&

.PRELIMINARY POINT TEMPS/POPS...
JACKSON       74  86  53  74 /  49  44  12   0
MERIDIAN      73  87  54  75 /  37  56  37   0
VICKSBURG     73  83  51  75 /  54  38   3   0
HATTIESBURG   74  88  57  79 /  21  43  22   0
NATCHEZ       74  83  51  73 /  37  30   4   0
GREENVILLE    68  82  51  74 /  82  47   1   0
GREENWOOD     69  84  49  74 /  74  54   6   0

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...FLASH FLOOD WATCH THROUGH WEDNESDAY AFTERNOON FOR MSZ018-019-
     025>042.

     WIND ADVISORY FROM 4 AM TO 7 PM CDT WEDNESDAY FOR MSZ026>033-
     036>039-042>066-072>074.

     WIND ADVISORY FROM 10 PM THIS EVENING TO 7 PM CDT WEDNESDAY FOR
     MSZ018-019-025-034-035-040-041.

LA...FLASH FLOOD WATCH THROUGH WEDNESDAY AFTERNOON FOR LAZ007>009.

     WIND ADVISORY FROM 4 AM TO 7 PM CDT WEDNESDAY FOR LAZ023>026.

     WIND ADVISORY FROM 10 PM THIS EVENING TO 7 PM CDT WEDNESDAY FOR
     LAZ007>009-015-016.

AR...FLASH FLOOD WATCH THROUGH WEDNESDAY AFTERNOON FOR ARZ074-075.

     WIND ADVISORY FROM 10 PM THIS EVENING TO 7 PM CDT WEDNESDAY FOR
     ARZ074-075.

&&

17/CME/BK

Hazardous weather outlook, Apr 26, 10:27 PM CDT, 1 hour 41 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
1027 PM CDT TUE APR 26 2011

ARZ074-075-LAZ007-MSZ018-019-025-026-034-280330-
ASHLEY-CHICOT-MOREHOUSE-BOLIVAR-SUNFLOWER-LEFLORE-GRENADA-
WASHINGTON-
1027 PM CDT TUE APR 26 2011

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

.DAY ONE...TONIGHT AND WEDNESDAY

AN OUTBREAK OF SEVERE THUNDERSTORMS IS EXPECTED TONIGHT THROUGH
AROUND MIDDAY WEDNESDAY. TORNADOES...POSSIBLY STRONG AND LONG
TRACKED...VERY LARGE HAIL TO THE SIZE OF BASEBALLS...AND DAMAGING
WIND GUSTS TO 80 MPH WILL BE POSSIBLE WITH THE MOST INTENSE STORMS.

AN UNSUALLY STRONG LOW PRESSURE SYSTEM FOR LATE SPRING IS FORECAST TO
MOVE NORTHEAST THROUGH THE MID SOUTH THROUGH WEDNESDAY. THIS WILL
RESULT IN SEVERAL ROUNDS OF STRONG TO SEVERE STORMS BEGINNING LATE
THIS EVENING AND CONTINUING THROUGH WEDNESDAY MORNING. THE ATMOSPHERE
IS FORECAST TO BE VERY SUPPORTIVE FOR SEVERE STORMS CAPABLE OF
PRODUCING SIGNIFICANT SEVERE WEATHER.

IN ADDITION TO THE SEVERE WEATHER THREAT...THE POTENTIAL FOR SEVERAL
ROUNDS OF STORMS PRODUCING VERY HEAVY RAINFALL WILL RESULT IN A RISK
FOR FLASH FLOODING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY NIGHT THROUGH MONDAY

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 EXPECTED TONIGHT AND WEDNESDAY.

LAZ008-009-015-016-023>025-MSZ027>033-035>052-280330-
WEST CARROLL-EAST CARROLL-RICHLAND-MADISON LA-FRANKLIN LA-
CATAHOULA-TENSAS-CARROLL-MONTGOMERY-WEBSTER-CLAY-LOWNDES-CHOCTAW-
OKTIBBEHA-HUMPHREYS-HOLMES-ATTALA-WINSTON-NOXUBEE-ISSAQUENA-
SHARKEY-YAZOO-MADISON MS-LEAKE-NESHOBA-KEMPER-WARREN-HINDS-RANKIN-
SCOTT-NEWTON-LAUDERDALE-
1027 PM CDT TUE APR 26 2011

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

.DAY ONE...TONIGHT AND WEDNESDAY

AN OUTBREAK OF SEVERE THUNDERSTORMS IS EXPECTED LATE TONIGHT
THROUGH MUCH OF WEDNESDAY...WITH THE GREATEST RISK EXPECTED
WEDNESDAY. TORNADOES...POSSIBLY STRONG AND LONG TRACKED...VERY LARGE
HAIL TO THE SIZE OF BASEBALLS...AND DAMAGING WIND GUSTS TO 80 MPH
WILL BE POSSIBLE WITH THE MOST INTENSE STORMS.

AN UNSUALLY STRONG LOW PRESSURE SYSTEM FOR LATE SPRING IS FORECAST TO
MOVE NORTHEAST THROUGH THE MID SOUTH THROUGH WEDNESDAY. THIS WILL
RESULT IN SEVERAL ROUNDS OF STRONG TO SEVERE STORMS BEGINNING LATE
THIS EVENING AND CONTINUING THROUGH WEDNESDAY. THE ATMOSPHERE IS
FORECAST TO BE VERY SUPPORTIVE FOR SEVERE STORMS CAPABLE OF PRODUCING
HIGH-END SEVERE WEATHER.

.DAYS TWO THROUGH SEVEN...WEDNESDAY NIGHT THROUGH MONDAY

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 WILL BE NECESSARY TONIGHT AND WEDNESDAY.

LAZ026-MSZ053>066-072>074-280330-
CONCORDIA-CLAIBORNE-COPIAH-SIMPSON-SMITH-JASPER-CLARKE-JEFFERSON-
ADAMS-FRANKLIN MS-LINCOLN-LAWRENCE-JEFFERSON DAVIS-COVINGTON-
JONES-MARION-LAMAR-FORREST-
1027 PM CDT TUE APR 26 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST
LOUISIANA...AND SOUTH CENTRAL MISSISSIPPI.

.DAY ONE...TONIGHT AND WEDNESDAY

ISOLATED SEVERE STORMS WILL BE POSSIBLE PRIOR TO DAYBREAK
WEDNESDAY...AND THE RISK FOR SEVERE THUNDERSTORMS WILL CONTINUE
DURING THE DAY. THIS WILL OCCCUR AS A STRONG COLD FRONT MOVES INTO THE
REGION FROM THE WEST. AT THE CURRENT TIME...IT IS STILL SOMEWHAT
UNCERTAIN HOW MANY...IF ANY...STORMS WILL FORM ACROSS THE AREA DUE TO
THE PRESENCE OF WARM AIR ALOFT IN THE ATMOSPHERE. HOWEVER...IF STORMS
DO DEVELOP...THE ATMOSPHERE WILL BE VERY SUPPORTIVE OF SIGNIFICANT
SEVERE WEATHER...INCLUDING THE POSSIBILITY OF STRONG
TORNADOES...DAMAGING WINDS...AND LARGE HAIL.

.DAYS TWO THROUGH SEVEN...WEDNESDAY NIGHT THROUGH MONDAY

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 MAY BE NECESSARY WEDNESDAY.

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT
WWW.SRH.NOAA.GOV/JAN.

EC

In the hours before

Local storm report, Apr 26, 11:12 PM CDT, 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
1112 PM CDT TUE APR 26 2011

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

1044 PM     TSTM WND DMG     4 W COLLINSTON          32.69N 91.94W
04/26/2011                   MOREHOUSE          LA   LAW ENFORCEMENT

            MOREHOUSE PARISH SO REPORTING LOTS OF TREE AND POWERLINE
            DAMAGE AND POSSIBLE TORNADO TOUCHDOWN SOUTH AND SOUTHWEST
            OF BASTROP

1049 PM     TORNADO          7 WNW BEEKMAN           32.96N 91.99W
04/26/2011                   MOREHOUSE          LA   LAW ENFORCEMENT

            TREES AND POWERLINES DOWN...HOUSE DAMAGED OR DESTROYED
            WITH PERSON REPORTEDLY TRAPPED...ON SULPHUR SPRINGS
            ROAD...LIKELY TORNADO BASED ON RADAR

&&

GERARD

Local storm report, Apr 27, 12:03 AM CDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
1203 AM CDT WED APR 27 2011

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

1155 PM     TSTM WND DMG     EUDORA                  33.12N 91.26W
04/26/2011                   CHICOT             AR   EMERGENCY MNGR

            NUMEROUS TREES DOWN. MUCH OF EUDORA WITHOUT POWER.

&&

GERARD

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 9:55 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse, Richland	80 min
Apr 26, 10:31 PM CDT	Tornado Warning	JAN	Morehouse	59 min
Apr 26, 10:54 PM CDT	Tornado Warning	JAN	Morehouse	41 min
Apr 26, 11:05 PM CDT	Severe Thunderstorm Warning	JAN	East Carroll, West Carroll	40 min
Apr 26, 11:08 PM CDT	Tornado Warning	JAN	East Carroll, West Carroll	67 min
Apr 26, 11:17 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse, Richland	43 min
Apr 26, 11:27 PM CDT	Flash Flood Warning	JAN	East Carroll, Madison, Morehouse, Richland, West Carroll	2 hr
Apr 26, 11:30 PM CDT	Tornado Warning	JAN	Morehouse	34 min
Apr 26, 11:40 PM CDT	Tornado Warning	JAN	Franklin, Richland, West Carroll	65 min
Apr 26, 11:59 PM CDT	Severe Thunderstorm Warning	JAN	East Carroll, Madison, Richland, West Carroll	46 min
Apr 27, 12:05 AM CDT	Tornado Warning	JAN	Franklin, Richland	55 min
Apr 27, 12:34 AM CDT	Flash Flood Warning	JAN	Franklin, Madison, Richland	116 min
Apr 27, 12:36 AM CDT	Severe Thunderstorm Warning	JAN	Madison, Tensas	54 min
Apr 27, 12:41 AM CDT	Severe Thunderstorm Warning	JAN	Franklin, Richland, West Carroll	34 min
Apr 27, 1:10 AM CDT	Severe Thunderstorm Warning	JAN	Franklin, Madison, Richland	50 min
Apr 27, 1:21 AM CDT	Flash Flood Warning	JAN	East Carroll, Franklin, Madison, Morehouse, Richland, West Carroll	114 min
Apr 27, 1:27 AM CDT	Severe Thunderstorm Warning	JAN	East Carroll, Madison, Richland	63 min
Apr 27, 1:43 AM CDT	Severe Thunderstorm Warning	JAN	Franklin, Madison, Tensas	47 min
Apr 27, 1:58 AM CDT	Tornado Warning	JAN	Catahoula, Concordia, Franklin, Tensas	47 min
Apr 27, 2:20 AM CDT	Flash Flood Warning	JAN	Catahoula, Concordia, Franklin, Madison, Richland, Tensas	115 min
Apr 27, 2:42 AM CDT	Severe Thunderstorm Warning	JAN	Catahoula, Concordia, Franklin, Tensas	48 min
Apr 27, 3:30 AM CDT	Severe Thunderstorm Warning	JAN	Tensas	45 min
Apr 27, 5:07 AM CDT	Severe Thunderstorm Warning	JAN	Franklin, Madison, Richland, Tensas	38 min
Apr 27, 5:20 AM CDT	Tornado Warning	JAN	Franklin, Madison, Tensas	40 min
Apr 27, 5:40 AM CDT	Severe Thunderstorm Warning	JAN	Franklin, Madison, Tensas	36 min
Apr 27, 5:45 AM CDT	Severe Thunderstorm Warning	JAN	East Carroll, Madison	32 min
Apr 27, 11:06 AM CDT	Special Weather Statement	JAN	Morehouse	29 min
Apr 27, 1:34 PM CDT	Severe Thunderstorm Warning	JAN	Catahoula, Concordia, Tensas	56 min
Apr 26, 8:55 PM CDT	River Flood Warning	JAN	Yazoo	47 days
Apr 26, 9:03 PM CDT	River Flood Warning	JAN	Clay	37 hr
Apr 26, 11:41 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Humphreys, Issaquena, Sharkey, Sunflower, Washington	64 min
Apr 26, 11:44 PM CDT	Tornado Warning	JAN	Bolivar, Washington	61 min
Apr 26, 11:46 PM CDT	Tornado Warning	JAN	Issaquena, Sharkey, Washington	59 min
Apr 27, 12:27 AM CDT	Tornado Warning	JAN	Humphreys, Sunflower, Washington	48 min
Apr 27, 12:53 AM CDT	Tornado Warning	JAN	Holmes, Humphreys, Sharkey, Yazoo	52 min
Apr 27, 12:58 AM CDT	Tornado Warning	JAN	Carroll, Grenada, Holmes, Humphreys, Leflore	47 min
Apr 27, 1:00 AM CDT	Severe Thunderstorm Warning	JAN	Hinds, Madison, Sharkey, Yazoo	60 min
Apr 27, 1:36 AM CDT	Severe Thunderstorm Warning	JAN	Attala, Carroll, Choctaw, Holmes, Leake, Madison and 1 more	54 min
Apr 27, 1:38 AM CDT	Severe Thunderstorm Warning	JAN	Carroll, Grenada, Holmes, Montgomery	67 min
Apr 27, 1:41 AM CDT	Tornado Warning	JAN	Attala, Carroll, Holmes	37 min
Apr 27, 1:47 AM CDT	Tornado Warning	JAN	Attala, Holmes	43 min
Apr 27, 1:55 AM CDT	Severe Thunderstorm Warning	JAN	Yazoo	65 min
Apr 27, 2:16 AM CDT	Tornado Warning	JAN	Choctaw, Montgomery, Webster	29 min
Apr 27, 2:20 AM CDT	Tornado Warning	JAN	Attala, Choctaw, Winston	40 min
Apr 27, 2:27 AM CDT	Severe Thunderstorm Warning	JAN	Leake, Neshoba, Winston	63 min
Apr 27, 2:29 AM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Hinds, Madison, Rankin, Warren	46 min
Apr 27, 2:36 AM CDT	Severe Thunderstorm Warning	JAN	Attala, Holmes, Leake, Madison, Yazoo	54 min
Apr 27, 2:38 AM CDT	Tornado Warning	JAN	Choctaw, Clay, Oktibbeha, Webster	40 min
Apr 27, 2:53 AM CDT	Tornado Warning	JAN	Noxubee, Oktibbeha, Winston	37 min
Apr 27, 3:04 AM CDT	Severe Thunderstorm Warning	JAN	Hinds, Leake, Madison, Neshoba, Newton, Rankin and 2 more	41 min
Apr 27, 3:05 AM CDT	Severe Thunderstorm Warning	JAN	Lowndes, Noxubee	55 min
Apr 27, 3:11 AM CDT	Tornado Warning	JAN	Clay, Lowndes, Oktibbeha	49 min
Apr 27, 3:14 AM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Copiah, Jefferson, Simpson	61 min
Apr 27, 3:17 AM CDT	Severe Thunderstorm Warning	JAN	Clay, Lowndes, Oktibbeha	17 min
Apr 27, 3:19 AM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Kemper, Neshoba, Oktibbeha, Winston	41 min
Apr 27, 3:22 AM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Kemper, Neshoba, Winston	38 min
Apr 27, 3:29 AM CDT	Tornado Warning	JAN	Lowndes	31 min
Apr 27, 3:41 AM CDT	Tornado Warning	JAN	Noxubee, Winston	49 min
Apr 27, 3:46 AM CDT	Severe Thunderstorm Warning	JAN	Clarke, Jasper, Kemper, Lauderdale, Neshoba, Newton and 2 more	44 min
Apr 27, 4:03 AM CDT	Tornado Warning	JAN	Kemper, Noxubee	27 min
Apr 27, 4:15 AM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Copiah, Hinds	45 min
Apr 27, 4:28 AM CDT	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale	32 min
Apr 27, 4:54 AM CDT	Special Weather Statement	JAN	Rankin	31 min
Apr 27, 5:00 AM CDT	Special Weather Statement	JAN	Bolivar, Sunflower	30 min
Apr 27, 5:24 AM CDT	Special Weather Statement	JAN	Yazoo	31 min
Apr 27, 5:38 AM CDT	Special Weather Statement	JAN	Bolivar	27 min
Apr 27, 6:33 AM CDT	Special Weather Statement	JAN	Warren	27 min
Apr 27, 7:03 AM CDT	Severe Thunderstorm Warning	JAN	Bolivar	42 min
Apr 27, 7:06 AM CDT	Special Weather Statement	JAN	Clay	29 min
Apr 27, 7:23 AM CDT	Severe Thunderstorm Warning	JAN	Clay	9 min
Apr 27, 7:38 AM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Sunflower	52 min
Apr 27, 7:47 AM CDT	Flash Flood Warning	JAN	Bolivar, Sunflower	3 hr
Apr 27, 9:11 AM CDT	River Flood Warning	JAN	Neshoba	71 hr
Apr 27, 9:25 AM CDT	Special Weather Statement	JAN	Bolivar, Sunflower, Washington	60 min
Apr 27, 9:32 AM CDT	Special Weather Statement	JAN	Grenada	28 min
Apr 27, 10:57 AM CDT	River Flood Warning	JAN	Noxubee	23 hr
Apr 27, 11:22 AM CDT	Severe Thunderstorm Warning	JAN	Bolivar	53 min
Apr 27, 11:54 AM CDT	Severe Thunderstorm Warning	JAN	Bolivar	36 min
Apr 27, 12:03 PM CDT	Tornado Warning	JAN	Bolivar, Sunflower	40 min
Apr 27, 12:51 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey, Washington	39 min

Nearby

Tornado Warnings in Louisiana, 2011 Tornado Warnings in Mississippi, 2011 Every tornado warning in 2011 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.