Alert archive / Mississippi / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 229, NWS Jackson, MS

April 11, 2008Kemper County, Noxubee County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Apr 11, 2008, 3:13 PM CDT for Kemper County, Noxubee County, Mississippi. It was in force for 17 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: Apr 11, 2008, 3:13 PM CDT (20:13 UTC)
Expired: Apr 11, 2008, 3:30 PM CDT
In force: 17 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties Kemper County, MS, Noxubee County, MS

The radar

The Columbus AFB radar (KGWX), 110 km from the middle of the area, began a volume at 20:14 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.

Issued	Product	Office	Lasted
Apr 11, 3:07 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 8.2 hours before the alert went out and 154 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: 1611 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 542 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 332 m²/s²
0-3 km storm-relative helicity: 358 m²/s²
Significant tornado parameter: 3.5
Supercell composite: 13.4

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 Apr 11, 1:25 PM CDT, 1 hour 48 minutes earlier.

Area forecast discussion, Apr 11, 1:25 PM CDT, 1 hour 48 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
125 PM CDT FRI APR 11 2008

.DISCUSSION...UPDATED FORECAST TO CLEAR A FEW NWRN COUNTIES AND
REDUCE ASSOCIATED POPS.

&&

.PREV DISCUSSION...THE CAP HAS ERODED OVER THE REGION AND SCATTERED
THUNDERSTORMS HAVE DEVELOPED. WITH HEALTHY MID LEVEL FLOW AND
SURFACE DEWPOINTS UP TO 70 DEGREES WE WILL SEE A CONTINUED POTENTIAL
FOR SEVERE STORMS FOR AREAS AHEAD OF THE FRONT. A SMALLER CHANCE FOR
TORNADO DEVELOPMENT REMAINS BUT THE PRIMARY SEVERE WEATHER RISK
TODAY WILL BE DAMAGING WIND AND HAIL.  MODELS SHOW THE WIND FIELDS
VEERING AT LOWER LEVELS DURING THE EARLY AFTERNOON...WHICH WILL
HAMPER TORNADO DEVELOPMENT...BUT EXPANSIVE DRY LAYERS AT MID AND
UPPER LEVELS WILL CONTRIBUTE SIGNIFICANTLY TO THE POSSIBILITY OF
DAMAGING WIND IN SEVERE STORMS TODAY.

GENERALLY INCREASED AFTERNOON HIGHS FROM THE NATCHEZ TRACE EWD...
ESPECIALLY FOR AREAS OVER SERN MS. SATELLITE PIX SHOW THE MOST
CAPPED REGION OVER SERN ZONES ALTHOUGH THE CAP WILL WEAKEN WITH TIME
THERE AND ALLOW SHOWERS AND THUNDERSTORMS TO INCREASE IN COVERAGE.
IN THE MEANTIME AFTERNOON TEMPERATURES WILL WARM A FEW DEGREES ABOVE
THOSE PREVIOUSLY FORECAST.

&&

.AVIATION...MVFR TO VFR FLIGHT CATEGORIES WITH CEILINGS GENERALLY
BETWEEN 2K-4K FEET WILL PREVAIL FOR MOST OF THE REGION THROUGH THE
DAY AS A STRONG COLD FRONT MOVES THROUGH THE REGION.  THIS WILL
BRING SHOWERS AND THUNDERSTORMS TO AREAS MAINLY AROUND THE NATCHEZ
TRACE CORRIDOR AND SOUTHEAST OF THIS AREA...MAINLY AFFECTING ALL
SITES EXCEPT KGLH. THIS ACTIVITY COULD BRING PERIODS OF IFR FLIGHT
CATEGORIES DUE TO VSBY RESTRICTIONS FROM RAIN. CEILINGS AND
CONDITIONS WILL IMPROVE FROM NORTHWEST TO SOUTHEAST TODAY.  KGLH
SHOULD BE PREVAILING WITH VFR FLIGHT CATEGORIES BY AROUND THE TIME
THE 18Z PACKAGE IS ISSUED.  CONDITIONS WILL RETURN TO VFR FOR KHBG
AND KMEI CLOSER TO THE END OF THE FORECAST PERIOD AS THE FRONT WILL
BE MOVING OUT OF THESE AREAS LAST. /14/

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...NONE.
LA...NONE.
AR...NONE.
&&

03/14

Hazardous weather outlook, Apr 11, 9:15 AM CDT, 5 hours 58 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
915 AM CDT FRI APR 11 2008

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
121000-
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-
915 AM CDT FRI APR 11 2008

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

.DAY ONE...TODAY AND TONIGHT

ISOLATED TO SCATTERED SEVERE THUNDERSTORMS WILL BE POSSIBLE FROM
LATE MORNING THROUGH EARLY EVENING...MAINLY EAST OF A LINE FROM
HARRISONBURG LOUISIANA...TO GRENADA. THE GREATEST RISK OF SEVERE
WEATHER TODAY WILL BE IN AREAS ALONG AND EAST OF THE NATCHEZ TRACE
PARKWAY CORRIDOR. DAMAGING WINDS AND LARGE HAIL WILL BE THE PRIMARY
RISK WITH ANY SEVERE STORMS. THE MOST INTENSE STORMS COULD PRODUCE
WINDS IN EXCESS OF 70 MPH AND HAIL TO THE SIZE OF GOLFBALLS.

A COLD FRONT WILL BE MOVING THROUGH THE AREA TODAY. BY LATE
MORNING...THE FRONT WILL BE ALONG A LINE FROM HARRISONBURG TO
GRENADA BY 11 AM...AND BY 6 PM SHOULD BE ALONG THE INTERSTATE 59
CORRIDOR. AHEAD OF THE LINE...DAYTIME HEATING WILL RESULT IN A VERY
WARM...MOIST AND UNSTABLE ATMOSPHERE. THE COMBINATION OF THE
APPROACHING FRONT AND STRONG INSTABILITY WILL RESULT IN THE
DEVELOPMENT OF VIGOROUS THUNDERSTORMS...SOME OF WHICH COULD
PRODUCE WIND DAMAGE AND HAIL. VERY DRY AIR ALOFT IN THE ATMOSPHERE
WILL ENHANCE THIS RISK...RESULTING IN THE POTENTIAL FOR AT LEAST A
FEW INCIDENTS OF SIGNIFICANT WIND AND HAIL.

WINDS IN LOWER LEVELS OF THE ATMOSPHERE WILL BE WEAKENING THROUGH
THE DAY...RESULTING IN A DIMINISHING RISK OF TORNADOES. HOWEVER...
THERE WILL STILL BE AT LEAST A LOW TORNADO RISK THROUGH THE
DAY...AND IT WILL LIKELY BE MAXIMIZED BETWEEN ABOUT 11 AM AND 3 PM.

THE RISK OF SEVERE WEATHER WILL END WITH THE PASSAGE OF THE COLD
FRONT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER WILL BE 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 TODAY OVER THE SOUTHEAST TWO-THIRDS
OF THE OUTLOOK AREA. OTHERWISE...ACTIVATION IS NOT EXPECTED SATURDAY
THROUGH THURSDAY.

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 11, 1:44 PM CDT, 1 hour 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
144 PM CDT FRI APR 11 2008

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

1215 PM     TSTM WND DMG     4 WSW MONTPELIER        33.70N 89.01W
04/11/2008                   CLAY               MS   UTILITY COMPANY

            TREES DOWN ON POWERLINES NEAR THE PINE BLUFF COMMUNITY

&&

AEG

Local storm report, Apr 11, 1:46 PM CDT, 1 hour 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
146 PM CDT FRI APR 11 2008

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

0106 PM     TSTM WND DMG     4 N WEST POINT          33.66N 88.65W
04/11/2008                   CLAY               MS   UTILITY COMPANY

            POWERLINES DOWN ALONG HWY 45 ALTERNATE

&&

AEG

Local storm report, Apr 11, 2:19 PM CDT, 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
219 PM CDT FRI APR 11 2008

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

1216 PM     HAIL             6 SW EUPORA             33.49N 89.36W
04/11/2008  E0.75 INCH       WEBSTER            MS   POST OFFICE

            IN TOMNOLEN

&&

AEG

Local storm report, Apr 11, 2:20 PM CDT, 53 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
220 PM CDT FRI APR 11 2008

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

1205 PM     TSTM WND DMG     8 E KILMICHAEL          33.45N 89.44W
04/11/2008                   MONTGOMERY         MS   POST OFFICE

            HIGH WINDS DOWNED AT LEAST ONE TREE. ALSO MEASURED 2
            INCHES OF RAIN.

1210 PM     HAIL             8 SW EUPORA             33.47N 89.38W
04/11/2008  E0.75 INCH       WEBSTER            MS   PUBLIC

            REPORTED BY GROCERY NEAR TOMNOLEN

1215 PM     TSTM WND DMG     4 WSW MONTPELIER        33.70N 89.01W
04/11/2008                   CLAY               MS   UTILITY COMPANY

            TREES DOWN ON POWERLINES NEAR THE PINE BLUFF COMMUNITY

1216 PM     HAIL             6 SW EUPORA             33.49N 89.36W
04/11/2008  E0.75 INCH       WEBSTER            MS   POST OFFICE

            IN TOMNOLEN

0106 PM     TSTM WND DMG     4 N WEST POINT          33.66N 88.65W
04/11/2008                   CLAY               MS   UTILITY COMPANY

            POWERLINES DOWN ALONG HWY 45 ALTERNATE

&&

AEG

Special weather statement, Apr 11, 2:32 PM CDT, 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
232 PM CDT FRI APR 11 2008

MSZ031-039-111950-
LOWNDES MS-NOXUBEE MS-
232 PM CDT FRI APR 11 2008

A STRONG THUNDERSTORM CAPABLE OF PRODUCING PEA TO DIME SIZE HAIL AND
40 TO 50 MPH WINDS WAS LOCATED 5 MILES NORTHEAST OF DEERBROOK AT 232
PM CDT...MOVING NORTHEAST AT 45 MPH.

PEOPLE IN LOWNDES AND NOXUBEE COUNTIES SHOULD MONITOR THIS STORM
CLOSELY.

DHB

Local storm report, Apr 11, 2:56 PM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
256 PM CDT FRI APR 11 2008

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

0240 PM     HAIL             HAMBURG                 31.58N 91.07W
04/11/2008  E2.75 INCH       FRANKLIN           MS   POST OFFICE

&&

AEG

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 11, 11:24 AM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Montgomery, Webster	36 min
Apr 11, 11:51 AM CDT	Severe Thunderstorm Warning	JAN	Carroll, Choctaw, Montgomery, Webster	24 min
Apr 11, 11:59 AM CDT	Severe Thunderstorm Warning	JAN	Clay, Oktibbeha, Webster	61 min
Apr 11, 11:59 AM CDT	Severe Thunderstorm Warning	JAN	Leake, Madison	21 min
Apr 11, 12:16 PM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Webster	29 min
Apr 11, 12:57 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Holmes, Madison, Yazoo	48 min
Apr 11, 1:05 PM CDT	Severe Thunderstorm Warning	JAN	Clay	10 min
Apr 11, 1:48 PM CDT	Severe Thunderstorm Warning	JAN	Adams, Jefferson	42 min
Apr 11, 1:59 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Neshoba	31 min
Apr 11, 2:27 PM CDT	Severe Thunderstorm Warning	JAN	Adams, Franklin, Jefferson, Lincoln	33 min
Apr 11, 2:29 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Neshoba, Noxubee, Winston	46 min
Apr 11, 2:43 PM CDT	Severe Thunderstorm Warning	JAN	Lowndes, Noxubee	20 min
Apr 11, 2:46 PM CDT	Tornado Warning	JAN	Copiah, Franklin, Jefferson, Lincoln	29 min
Apr 11, 3:11 PM CDT	Tornado Warning	JAN	Copiah, Franklin, Lawrence, Lincoln	34 min
Apr 11, 3:20 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Noxubee	25 min
Apr 11, 3:44 PM CDT	Tornado Warning	JAN	Copiah, Lawrence, Lincoln, Simpson	31 min
Apr 11, 3:49 PM CDT	Severe Thunderstorm Warning	JAN	Jones	14 min
Apr 11, 4:17 PM CDT	Severe Thunderstorm Warning	JAN	Clarke	28 min
Apr 11, 5:51 PM CDT	Severe Thunderstorm Warning	JAN	Clarke, Lauderdale	39 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2008 Every severe thunderstorm warning in 2008

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.