Alert archive / Mississippi / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 76, NWS Jackson, MS

March 26, 2009Lowndes County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 26, 2009, 2:46 AM CDT for Lowndes County, Mississippi. It was in force for 29 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: Mar 26, 2009, 2:46 AM CDT (07:46 UTC)
Expired: Mar 26, 2009, 3:15 AM CDT
In force: 29 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

County Lowndes County, MS

The radar

The Columbus AFB radar (KGWX), 50 km from the middle of the area, began a volume at 07:48 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 nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 7.8 hours before the alert went out and 157 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 599 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 151 m²/s²
0-3 km storm-relative helicity: 98 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.

000 
WUUS54 KJAN 260746
SVRJAN
MSC087-260815-
/O.NEW.KJAN.SV.W.0076.090326T0746Z-090326T0815Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
246 AM CDT THU MAR 26 2009

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LOWNDES COUNTY IN NORTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF COLUMBUS...

* UNTIL 315 AM CDT

* AT 246 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED NEAR BENT OAK...OR 12 MILES
  SOUTHWEST OF COLUMBUS...AND MOVING NORTHEAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  COLUMBUS BY 300 AM CDT...
  STEENS BY 305 AM CDT...

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.

HIGH WINDS CAN BRING DOWN TREES AND LARGE LIMBS RESULTING IN SERIOUS
INJURY OR PROPERTY DAMAGE. EXERCISE EXTREME CAUTION WHEN OUTDOORS
DURING SUCH STRONG WINDS...AND BE ESPECIALLY AWARE OF OLDER TREES.

LAT...LON 3331 8832 3330 8857 3345 8862 3354 8849
      3353 8847 3355 8847 3369 8826
TIME...MOT...LOC 0746Z 239DEG 42KT 3337 8852

$$

MME

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 Mar 25, 11:40 PM CDT, 3 hours 6 minutes earlier.

Area forecast discussion, Mar 25, 11:40 PM CDT, 3 hours 6 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE JACKSON MS
1140 PM CDT WED MAR 25 2009

.UPDATE...HAVE MADE A QUICK UPDATE TO THE TORNADO WATCH NUMBER 66.
HAVE INCLUDED HOMLES COUNTY EAST TO THE STATE LINE AND ALL THE WAY
SOUTH TO THE CWFA BORDER. HAVE ALSO REMOVED SEVERAL COUNTIES/PARISHES
FROM THE WATCH THAT ARE OUT OF THE THREAT AREA NOW. THE LINE OF
SHOWERS AND STORMS NOW EXTENDS FROM GRENADA MISSISSIPPI DOWN THROUGH
MONTEREY LOUISIANA. THE LINE IS RAPIDLY MOVING EAST AND IS EXPECTED
TO LEAVE THE EASTERN PORTIONS OF THE CWFA BY AROUND 3 AM.

&&

.AVIATION...MAINLY MVFR FLIGHT CATEGORIES ARE SEEN FOR MUCH OF THE
ARKLAMISS REGION TONIGHT.  A WARM FRONT IS MOVING NORTH THROUGH
PORTIONS OF THE REGION. A STRONG LINE OF THUNDERSTORMS JUST EAST OF
THE MISSISSIPPI RIVER IS RAPIDLY MOVING EAST THROUGH THE ARKLAMISS
REGION. THIS LINE SHOULD EXIT SOUTHEASTERN COUNTIES BY AROUND 3 OR 4
AM. THIS LINE OF STORMS WILL BRING PERIODS OF IFR TO POSSIBLY LIFR
CONDITIONS AS IT PASSES THROUGH JAN...GTR...MEI AND HBG. THIS WILL
BRING GUSTY WINDS AND HEAVY RAIN TO SITES AS IT PASSES THROUGH.
CONDITIONS WILL BEGIN TO IMPROVE FROM NORTHWEST TO SOUTHEAST DURING
THE EARLY TO MID MORNING HOURS. ON THURSDAY THERE SHOULD BE A BREAK
IN SHOWER AND THUNDERSTORM ACTIVITY...AS WELL AS CLOUD COVER. THIS
SHOULD BE DURING THE DAY THURSDAY BEFORE MORE SHOWER AND THUNDERSTORM
ACTIVITY BEGINS TO MOVE INTO THE REGION THURSDAY AFTERNOON AND
ESPECIALLY THURSDAY EVENING.

&&

.PRELIMINARY POINT TEMPS/POPS...
JACKSON       57  76  58  79 / 100  22  81  50
MERIDIAN      57  74  57  79 / 100  48  79  52
VICKSBURG     57  76  60  80 / 100  25  78  48
HATTIESBURG   61  75  60  78 / 100  72 100  57
NATCHEZ       60  76  60  80 / 100  44  83  50
GREENVILLE    52  74  58  78 / 100  20  75  43
GREENWOOD     53  76  57  78 / 100  18  73  37

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...FLASH FLOOD WATCH UNTIL 7 AM CDT THURSDAY FOR MSZ018-019-025>066-
     072>074.

LA...FLASH FLOOD WATCH UNTIL 7 AM CDT THURSDAY FOR LAZ007>009-015-016-
     023>026.

AR...FLASH FLOOD WATCH UNTIL 7 AM CDT THURSDAY FOR ARZ074-075.

&&

14

Hazardous weather outlook, Mar 25, 8:15 PM CDT, 6 hours 31 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE JACKSON MS
815 PM CDT WED MAR 25 2009

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
261945-
ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-RICHLAND-
MADISON LA-FRANKLIN LA-CATAHOULA-TENSAS-CONCORDIA-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-JEFFERSON-ADAMS-FRANKLIN MS-LINCOLN-
LAWRENCE-JEFFERSON DAVIS-COVINGTON-JONES-MARION-LAMAR-FORREST-
815 PM CDT WED MAR 25 2009

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

.DAY ONE...TONIGHT AND THURSDAY

A LINE OF STRONG TO SEVERE THUNDERSTORMS WILL SWEEP ACROSS THE
REGION TONIGHT BETWEEN 930 PM AND 4 AM. DAMAGING WIND GUSTS GREATER
THAN 70 MPH AND TORNADOES...A FEW OF WHICH COULD BE STRONG...WILL BE
LIKELY WITH THE MOST INTENSE STORMS OVERNIGHT. THE GREATEST RISK OF
SEVERE STORMS WILL BE SOUTH OF HIGHWAY 82...AND THE GREATEST TORNADO
RISK WILL BE FROM INTERSTATE 20 SOUTH. HAIL UP TO THE SIZE OF
QUARTERS MAY ALSO OCCUR WITH A FEW OF THESE STORMS ACROSS THE REGION
TONIGHT.

THE LINE OF STORMS SHOULD REACH THE MISSISSIPPI RIVER BETWEEN 11 PM
AND MIDNIGHT...THE INTERSTATE 55 CORRIDOR...BETWEEN MIDNIGHT AND 2
AM...AND THE HIGHWAY 45 CORRIDOR BETWEEN 3 AND 5 AM. A FEW INTENSE
STORMS COULD ALSO DEVELOP AHEAD OF THE LINE AS WELL.

HEAVY RAINFALL OF ONE TO LOCALLY THREE INCHES WILL BE POSSIBLE
THROUGH TONIGHT AND THIS RAISES CONCERNS FOR FLASH FLOODING. A FLASH
FLOOD WATCH IS IN EFFECT TONIGHT.

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

A SECOND ROUND OF HEAVY RAINFALL OF ONE TO TWO INCHES IS LIKELY FOR
THURSDAY NIGHT AS A WARM FRONT LIFTS NORTHWARD THROUGH THE REGION.
ONCE AGAIN...ISOLATED SEVERE STORMS WILL BE POSSIBLE. THEN...A MORE
POWERFUL STORM SYSTEM WILL BE GATHERING OVER THE ARKLATEX REGION ON
FRIDAY AND PUSHING NORTHEAST WITH IMPRESSIVE MOISTURE...INSTABILITY
AND WIND SHEAR COMBINING ACROSS OUR REGION FOR AN OUTBREAK OF SEVERE
STORMS INCLUDING TORNADOES FROM FRIDAY AFTERNOON THROUGH FRIDAY
NIGHT. AT THIS TIME THE GREATEST RISK APPEARS TO BE FOR LOCATIONS
ALONG AND NORTH OF INTERSTATE TWENTY..HOWEVER A SQUALL LINE SHOULD
SWEEP EAST ACROSS MOST OF THE OUTLOOK AREA LATE FRIDAY NIGHT.
RESIDENTS SHOULD STAY WEATHER ALERT FOR UPDATES ON THIS DANGEROUS
STORM SYSTEM.

OTHERWISE...THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER WILL BE
LOW FROM SATURDAY THROUGH TUESDAY.

.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 NEEDED TONIGHT...MAY BE NEEDED THURSDAY
NIGHT...AND WILL LIKELY BE NEEDED FRIDAY AFTERNOON AND FRIDAY NIGHT.

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

08

In the hours before

Local storm report, Mar 26, 1:20 AM CDT, 1 hour 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
120 AM CDT THU MAR 26 2009

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

1210 AM     TSTM WND DMG     UTICA                   32.10N 90.62W
03/26/2009                   HINDS              MS   EMERGENCY MNGR

            TREES DOWN JUST WEST OF UTICA IN THE CAYUGA AREA.

1215 AM     TSTM WND DMG     1 S POCAHONTAS          32.46N 90.29W
03/26/2009                   HINDS              MS   EMERGENCY MNGR

            TREES AND POWERLINES DOWN ON RATLIFF ROAD ABOUT ONE MILE
            SOUTH OF POCAHONTAS.

&&

JCULIN

Special weather statement, Mar 26, 1:33 AM CDT, 1 hour 13 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
133 AM CDT THU MAR 26 2009

MSZ029>033-038-039-045-046-260730-
KEMPER MS-NESHOBA MS-CLAY MS-LOWNDES MS-WEBSTER MS-OKTIBBEHA MS-
CHOCTAW MS-NOXUBEE MS-WINSTON MS-
133 AM CDT THU MAR 26 2009

...LINE OF STRONG THUNDERSTORMS MOVING ACROSS EAST CENTRAL
MISSISSIPPI...

A LINE OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING 40 TO 50 MPH
WINDS WAS LOCATED FROM 5 MILES NORTH OF CLARKSON TO 7 MILES SOUTHWEST
OF DIXON AT 132 AM CDT...MOVING EAST AT 45 MPH.

VERY HEAVY RAIN IS ALSO POSSIBLE WITH THESE STORMS.

PEOPLE IN WINSTON...NOXUBEE...EASTERN CHOCTAW...OKTIBBEHA...EASTERN
WEBSTER...LOWNDES...CLAY...NESHOBA AND KEMPER COUNTIES SHOULD MONITOR
THESE STORMS CLOSELY.

MME

Local storm report, Mar 26, 1:56 AM CDT, 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
156 AM CDT THU MAR 26 2009

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

1210 AM     TSTM WND DMG     MCNAIR                  31.64N 91.04W
03/26/2009                   JEFFERSON          MS   LAW ENFORCEMENT

            TREE DOWN ACROSS MCNAIR ROAD.

&&

JCULIN

Local storm report, Mar 26, 2:21 AM CDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
221 AM CDT THU MAR 26 2009

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

0115 AM     TSTM WND DMG     WEST LINCOLN            31.49N 90.57W
03/26/2009                   LINCOLN            MS   EMERGENCY MNGR

            SEVERAL ROADS IN A 7 TO 8 MILE STIP HAVE TREES DOWN.
            JACKSON LIBERTY ROAD IN WEST LINCOLN, HIGHWAY 51 AND
            STONEYBROOK. TREES ARE DOWN ON 2 HOUSES ON PRICEDALE ROAD
            AND THE ROAD IS BLOCKED FOR ABOUT A QUARTER OF A MILE.

0130 AM     TSTM WND DMG     MONTICELLO              31.55N 90.11W
03/26/2009                   LAWRENCE           MS   EMERGENCY MNGR

            WIDESPREAD TREE AND POWERLINE DAMAGE ACROSS LAWRENCE
            COUNTY.

&&

JCULIN

Local storm report, Mar 26, 2:30 AM CDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
230 AM CDT THU MAR 26 2009

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

0146 AM     TORNADO          MAGEE                   31.87N 89.73W
03/26/2009                   SIMPSON            MS   LAW ENFORCEMENT

            MAJOR DAMAGE REPORTED ON THE NORTH SIDE OF MAGEE.
            INJURIES REPORTED...EXTENT AND NUMBER UNKNOWN AT THIS
            TIME. REPORTED BY MAGEE PD.

0201 AM     TSTM WND DMG     5 W RALEIGH             32.03N 89.61W
03/26/2009                   SMITH              MS   EMERGENCY MNGR

            MEMA AREA COORDINATOR REPORTS THAT HER CARPORT WAS BLOWN
            AWAY.

&&

AEG

Local storm report, Mar 26, 2:46 AM CDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
246 AM CDT THU MAR 26 2009

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

1255 AM     TSTM WND DMG     BUDE                    31.46N 90.85W
03/26/2009                   FRANKLIN           MS   LAW ENFORCEMENT

            TREES DOWN ALONG HIGHWAY 98 ACROSS THE COUNTY.

&&

JCULIN

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 25, 9:07 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey, Warren, Yazoo	38 min
Mar 25, 10:17 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Warren	43 min
Mar 25, 10:24 PM CDT	Severe Thunderstorm Warning	JAN	Holmes, Humphreys, Yazoo	25 min
Mar 25, 10:58 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Jefferson, Warren	47 min
Mar 25, 11:00 PM CDT	Severe Thunderstorm Warning	JAN	Adams	45 min
Mar 25, 11:11 PM CDT	Tornado Warning	JAN	Claiborne, Warren	34 min
Mar 25, 11:14 PM CDT	Severe Thunderstorm Warning	JAN	Holmes, Humphreys, Yazoo	46 min
Mar 25, 11:19 PM CDT	Tornado Warning	JAN	Holmes, Humphreys, Yazoo	41 min
Mar 25, 11:34 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Warren	41 min
Mar 25, 11:37 PM CDT	Tornado Warning	JAN	Yazoo	38 min
Mar 25, 11:44 PM CDT	Severe Thunderstorm Warning	JAN	Adams, Claiborne, Copiah, Franklin, Jefferson, Lincoln	61 min
Mar 25, 11:49 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Copiah, Hinds	41 min
Mar 26, 12:04 AM CDT	Tornado Warning	JAN	Attala, Carroll, Holmes	41 min
Mar 26, 12:07 AM CDT	Tornado Warning	JAN	Hinds, Madison, Rankin	23 min
Mar 26, 12:29 AM CDT	Tornado Warning	JAN	Leake, Madison, Rankin, Scott	31 min
Mar 26, 12:33 AM CDT	Severe Thunderstorm Warning	JAN	Attala, Leake, Madison	57 min
Mar 26, 12:46 AM CDT	Severe Thunderstorm Warning	JAN	Franklin, Lincoln	44 min
Mar 26, 1:14 AM CDT	Tornado Warning	JAN	Jefferson Davis, Lawrence, Simpson	46 min
Mar 26, 1:28 AM CDT	Severe Thunderstorm Warning	JAN	Lawrence, Lincoln	32 min
Mar 26, 1:40 AM CDT	Tornado Warning	JAN	Simpson, Smith	50 min
Mar 26, 1:49 AM CDT	Severe Thunderstorm Warning	JAN	Kemper, Neshoba, Noxubee, Winston	41 min
Mar 26, 1:56 AM CDT	Severe Thunderstorm Warning	JAN	Covington, Jefferson Davis, Lawrence, Marion	49 min
Mar 26, 1:59 AM CDT	Severe Thunderstorm Warning	JAN	Clay, Lowndes, Oktibbeha	46 min
Mar 26, 2:10 AM CDT	Tornado Warning	JAN	Covington, Jefferson Davis, Simpson, Smith	35 min
Mar 26, 2:15 AM CDT	Severe Thunderstorm Warning	JAN	Lamar, Marion	45 min
Mar 26, 2:16 AM CDT	Tornado Warning	JAN	Jasper	59 min
Mar 26, 2:23 AM CDT	Tornado Warning	JAN	Newton	39 min
Mar 26, 2:36 AM CDT	Tornado Warning	JAN	Covington, Jasper, Jones, Smith	39 min
Mar 26, 2:41 AM CDT	Severe Thunderstorm Warning	JAN	Covington, Forrest, Jones, Lamar, Marion	64 min
Mar 26, 2:49 AM CDT	Severe Thunderstorm Warning	JAN	Noxubee	26 min
Mar 26, 2:50 AM CDT	Tornado Warning	JAN	Clarke, Lauderdale	55 min
Mar 26, 2:56 AM CDT	Tornado Warning	JAN	Jasper	34 min
Mar 26, 3:23 AM CDT	Severe Thunderstorm Warning	JAN	Clarke	34 min
Mar 26, 4:07 AM CDT	Flash Flood Watch	JAN	Adams, Attala, Bolivar, Carroll, Choctaw, Claiborne and 41 more	24 hr
Mar 26, 8:36 AM CDT	Areal Flood Warning	JAN	Jefferson Davis, Lawrence, Simpson	6 hr
Mar 26, 10:04 AM CDT	River Flood Warning	JAN	Noxubee	35 hr
Mar 26, 10:04 AM CDT	River Flood Warning	JAN	Lowndes	35 hr
Mar 26, 11:01 AM CDT	Areal Flood Warning	JAN	Lowndes	26 hr
Mar 26, 11:02 AM CDT	River Flood Warning	JAN	Yazoo	46 hr
Mar 26, 11:02 AM CDT	River Flood Warning	JAN	Carroll, Leflore	35 hr

Nearby

Severe Thunderstorm Warnings in Mississippi, 2009 Every severe thunderstorm warning in 2009

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.