Alert archive / Mississippi / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 121, NWS Jackson, MS

May 2, 20105 counties in Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at May 2, 2010, 2:50 PM CDT for 5 counties in Mississippi. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 2, 2010, 2:50 PM CDT (19:50 UTC)
Expired
May 2, 2010, 3:45 PM CDT
In force
55 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon

Counties Attala County, MS, Choctaw County, MS, Clay County, MS, Oktibbeha County, MS, Webster County, MS

The radar

The Columbus AFB radar (KGWX), 93 km from the middle of the area, began a volume at 19:51 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

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

IssuedProductOfficeLasted
May 2, 8:01 AM CDTTornado WatchSPC7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 7.8 hours before the alert went out and 172 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-pSkew-T log-p diagram, Little Rock, AR at 12:00Z on 2010-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 67 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 12:00Z on 2010-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -97 square meters per square second.1939587897117136156Sfc1 km3 km6 km9 kmRMLM
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
67 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
580 m above ground
0-6 km bulk shear
83 kt
0-1 km storm-relative helicity
-97 m²/s²
0-3 km storm-relative helicity
1 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

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 May 2, 12:33 PM CDT, 2 hours 17 minutes earlier.

Area forecast discussion, May 2, 12:33 PM CDT, 2 hours 17 minutes before
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Hazardous weather outlook, May 2, 2:30 PM CDT, 20 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
230 PM CDT SUN MAY 2 2010

MSZ026>033-036>039-031830-
GRENADA-CARROLL-MONTGOMERY-WEBSTER-CLAY-LOWNDES-CHOCTAW-OKTIBBEHA-
HOLMES-ATTALA-WINSTON-NOXUBEE-
230 PM CDT SUN MAY 2 2010

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

.DAY ONE...TONIGHT AND MONDAY

ISOLATED SEVERE THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON INTO
TONIGHT. DAMAGING WINDS TO 60 MPH...LARGE HAIL AND TORNADOES WILL BE
POSSIBLE. PERIODS OF VERY HEAVY RAINFALL ARE LIKELY AS WELL AS
THUNDERSTORMS MAY MOVE REPEATEDLY OVER SOME LOCATIONS. THESE RAINS
COULD RESULT IN A RISK OF FLASH FLOODING BEFORE THE ACTIVITY MOVES
EAST OF THE REGION EARLY MONDAY MORNING. A FLASH FLOOD WATCH IS IN
EFFECT THROUGH SUNDAY EVENING.

.DAYS TWO THROUGH SEVEN...MONDAY NIGHT THROUGH SATURDAY

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 NEEDED THIS AFTERNOON AND TONIGHT.

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025-034-035-
040>043-047>049-053>055-059>064-072-031830-
ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-RICHLAND-
MADISON LA-FRANKLIN LA-CATAHOULA-TENSAS-CONCORDIA-BOLIVAR-
SUNFLOWER-LEFLORE-WASHINGTON-HUMPHREYS-ISSAQUENA-SHARKEY-YAZOO-
MADISON MS-WARREN-HINDS-RANKIN-CLAIBORNE-COPIAH-SIMPSON-JEFFERSON-
ADAMS-FRANKLIN MS-LINCOLN-LAWRENCE-JEFFERSON DAVIS-MARION-
230 PM CDT SUN MAY 2 2010

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

.DAY ONE...TONIGHT AND MONDAY

ISOLATED SEVERE THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON AND
EARLY EVENING. THE PRIMARY SEVERE RISK WITH THESE STORMS WILL BE
DAMAGING WINDS TO 60 MPH ALTHOUGH A TORNADO CAN NOT BE RULED OUT.
PERIODS OF HEAVY RAINFALL CAN ALSO BE EXPECTED WITH THESE STORMS.
LOCAL FLOODING WILL BE POSSIBLE IF THUNDERSTORMS MOVE REPEATEDLY
OVER ANY GIVEN LOCATIONS.

.DAYS TWO THROUGH SEVEN...MONDAY NIGHT THROUGH SATURDAY

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 NEEDED THIS AFTERNOON AND EVENING.

MSZ044>046-050>052-056>058-065-066-073-074-031830-
LEAKE-NESHOBA-KEMPER-SCOTT-NEWTON-LAUDERDALE-SMITH-JASPER-CLARKE-
COVINGTON-JONES-LAMAR-FORREST-
230 PM CDT SUN MAY 2 2010

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

.DAY ONE...TONIGHT AND MONDAY

ISOLATED SEVERE THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON AND
TONIGHT. THEY WILL HAVE THE POTENTIAL FOR DAMAGING WINDS TO 60 MPH
AND TORNADOES WILL BE POSSIBLE. PERIODS OF HEAVY RAINFALL CAN ALSO
BE EXPECTED WITH THESE STORMS. LOCAL FLOODING WILL BE POSSIBLE IF
THUNDERSTORMS MOVE REPEATEDLY OVER ANY GIVEN LOCATIONS.

.DAYS TWO THROUGH SEVEN...MONDAY NIGHT THROUGH SATURDAY

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 NEEDED THIS AFTERNOON AND TONIGHT.

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

03

In the hours before

Local storm report, May 2, 12:28 PM CDT, 2 hours 22 minutes before
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Local storm report, May 2, 12:29 PM CDT, 2 hours 21 minutes before
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Special weather statement, May 2, 12:32 PM CDT, 2 hours 18 minutes before
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Special weather statement, May 2, 1:13 PM CDT, 1 hour 37 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
113 PM CDT SUN MAY 2 2010

MSZ035-036-042-021845-
HOLMES MS-HUMPHREYS MS-YAZOO MS-
113 PM CDT SUN MAY 2 2010

A STRONG THUNDERSTORM CAPABLE OF PRODUCING VERY HEAVY RAIN WAS
LOCATED 4 MILES WEST OF YAZOO CITY AT 113 PM CDT...MOVING NORTHEAST
AT 50 MPH.

VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING ARE
ALSO POSSIBLE WITH THIS STORM.

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.

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

COHEN
Special weather statement, May 2, 1:50 PM CDT, 1 hour before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
150 PM CDT SUN MAY 2 2010

MSZ036-042-021920-
HOLMES MS-YAZOO MS-
150 PM CDT SUN MAY 2 2010

A STRONG THUNDERSTORM CAPABLE OF PRODUCING PEA TO DIME SIZE HAIL AND
40 TO 50 MPH WINDS WAS LOCATED 3 MILES EAST OF YAZOO CITY AT 150 PM
CDT...MOVING NORTHEAST AT 45 MPH.

VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING ARE
ALSO POSSIBLE WITH THIS STORM.

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.

PEOPLE IN NORTH CENTRAL YAZOO AND HOLMES COUNTIES SHOULD MONITOR THIS
STORM CLOSELY.

COHEN
Local storm report, May 2, 2:28 PM CDT, 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
228 PM CDT SUN MAY 02 2010

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

1030 AM     TSTM WND DMG     LAUREL                  31.69N 89.14W
05/02/2010                   JONES              MS   EMERGENCY MNGR

            TREE FELL ON A HOUSE IN TOWN AND DID MAJOR DAMAGE. A TREE
            FELL ON A PARKED CAR NEXT DOOR TO THE DAMAGED HOUSE.
            POWERLINES WERE BLOWN DOWN ACROSS TOWN. A BUSINESS HAD
            ITS WINDOWS BLOWN OUT IN DOWNTOWN LAUREL.

&&

MM

The office that day

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

IssuedProductOfficeCountiesLasted
May 1, 8:00 PM CDTRiver Flood WarningJANClay62 hr
May 1, 8:05 PM CDTSevere Thunderstorm WarningJANAttala, Leake40 min
May 1, 8:12 PM CDTSevere Thunderstorm WarningJANLeake, Scott33 min
May 1, 8:30 PM CDTTornado WarningJANLeake, Scott12 min
May 1, 8:49 PM CDTSevere Thunderstorm WarningJANWebster26 min
May 2, 1:53 AM CDTSevere Thunderstorm WarningJANLeflore, Sunflower38 min
May 2, 7:34 AM CDTSevere Thunderstorm WarningJANGrenada, Montgomery, Webster28 min
May 2, 7:48 AM CDTFlash Flood WarningJANCarroll, Grenada, Montgomery117 min
May 2, 8:30 AM CDTSevere Thunderstorm WarningJANCarroll, Grenada, Leflore, Sunflower60 min
May 2, 8:34 AM CDTTornado WarningJANCarroll, Grenada, Leflore34 min
May 2, 9:27 AM CDTSevere Thunderstorm WarningJANCarroll, Grenada, Leflore63 min
May 2, 10:15 AM CDTFlash Flood WarningJANCarroll, Grenada, Leflore, Montgomery2 hr
May 2, 10:45 AM CDTSevere Thunderstorm WarningJANClarke, Jasper, Jones60 min
May 2, 11:20 AM CDTFlash Flood WarningJANAttala, Choctaw, Clay, Montgomery, Webster115 min
May 2, 11:38 AM CDTSevere Thunderstorm WarningJANKemper, Lauderdale67 min
May 2, 2:15 PM CDTSevere Thunderstorm WarningJANAttala, Carroll, Holmes, Montgomery, Webster60 min
May 2, 4:28 PM CDTSevere Thunderstorm WarningJANAttala, Leake, Madison47 min
May 2, 5:07 PM CDTSevere Thunderstorm WarningJANAttala, Choctaw, Oktibbeha, Winston53 min
May 2, 5:26 PM CDTSevere Thunderstorm WarningJANHinds, Madison, Rankin, Scott53 min
May 2, 5:37 PM CDTTornado WarningJANClay, Lowndes, Oktibbeha37 min
May 2, 6:03 PM CDTSevere Thunderstorm WarningJANAttala, Leake, Madison, Neshoba, Scott, Winston57 min
May 2, 6:36 PM CDTSevere Thunderstorm WarningJANNeshoba, Winston54 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2010Every severe thunderstorm warning in 2010

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.