Alert archive / Mississippi / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 245, NWS Jackson, MS

April 18, 2008Noxubee County, Winston County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Apr 18, 2008, 6:45 PM CDT for Noxubee County, Winston County, Mississippi. It was in force for 60 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 18, 2008, 6:45 PM CDT (23:45 UTC)
Expired: Apr 18, 2008, 7:45 PM CDT
In force: 60 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties Noxubee County, MS, Winston County, MS

The radar

The Columbus AFB radar (KGWX), 99 km from the middle of the area, began a volume at 23:46 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 nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 11.8 hours before the alert went out and 148 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: 810 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 243 m²/s²
0-3 km storm-relative helicity: 326 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 18, 6:05 PM CDT, 40 minutes earlier.

Area forecast discussion, Apr 18, 6:05 PM CDT, 40 minutes before

AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE JACKSON MS
605 PM CDT FRI APR 18 2008

.UPDATE...DID A QUICK UPDATE TO ZONES AND GRID PRODUCTS TO REFLECT
DROPPING OF TRI-COUNTY METRO...COPIAH...LINCOLN AND LAWRENCE
COUNTIES FROM TORNADO WATCH 207. SOME LIGHTER CONVECTION CONTINUES
IN THESE AREAS CURRENTLY...BUT LOW LEVEL WINDS HAVE VEERED WITH
BOUNDARY PASSAGE AND THEREFORE TORNADO THREAT REMOVED. POPS AND
TEMPS ALSO TWEAKED FOR THE EVENING TO REALLY CONCENTRATE ACTIVE
WEATHER THREAT FOR FAR EASTERN ZONES OF MS THROUGH MID EVENING. /BB/

&&

.PREVIOUS DISCUSSION...
SHORT TERM...ALL INGREDIENTS FOR RAPID
THUNDERSTORM GROWTH UP TO SEVERE LIMITS CAME TOGETHER OVER THE LAST
FEW HOURS OVER CENTRAL SECTIONS OF MS. SEEMS THAT STRONG UPPER
FORCING FROM INCOMING DISTURBANCE HAS NOW LINKED WITH MARGINAL
INSTABILITY AND HIGH WIND SHEAR TO PRODUCE A BROKEN LINE OF POTENT
THUNDERSTORMS...INCLUDING EMBEDDED SUPERCELLS. THIS ACTIVITY HAS NOW
SHIFTED EAST OF THE I-55 CORRIDOR AND ALMOST THE ENTIRETY OF THE
SEVERE WEATHER THREAT SHOULD BE ASSOCIATED WITH THIS BROKEN LINE.
THIS CAN BE INTERPRETED TO MEAN LOCATIONS ALONG THE I-55 CORRIDOR
ARE MOSTLY CLEAR OF THE SEVERE RISK AND WILL BE CLEARED FROM THE
TORNADO WATCH SHORTLY. OTHERWISE...EXPECT STORMS TO MOVE THROUGH THE
EASTERN HALF OF THE STATE OVER THE NEXT SEVERAL HOURS AND EXITING IN
THE EARLY EVENING.

GRIDS AND ZONES HAVE BEEN UPDATED FOR INCLUSION OF TORNADO WATCH 207
UNTIL 10 PM. HWO HAS BEEN UPDATED TO BUMP UP SEVERE WEATHER WORDING
THROUGH THIS EVENING...ESPECIALLY EAST OF THE I-55 CORRIDOR./BB/

THE CLEARING SKIES AND INFLUX OF HIGH PRESSURE LATE TONIGHT WILL SET
THE STAGE FOR A BEAUTIFUL SATURDAY WITH SUNNY SKIES...WESTERLY
BREEZES AND HIGHS IN THE MID TO UPPER 70S. /BB/

LONGER TERM....MEDIUM RANGE GUIDANCE AND ENSEMBLES PAINT A RATHER
QUIET WEEKEND UNTIL WE GET INTO THE UPCOMING WORK WEEK. A SERIES OF
UPPER DISTURBANCES WILL PASS THROUGH THE SOUTHERN STREAM...GIVING
THE REGION A SMALL CHANCE OF SHOWERS AND THUNDERSTORMS EACH DAY.

LOOKING THE MODELS ON A DAILY BASIS. SURFACE HIGH PRESSURE WILL MOVE
OVER THE REGION OVER THE WEEKEND...BRINGING THE REGION MILD DAYS AND
COOL NIGHTS. LOWS WILL DIP FROM THE MIDDLE 40S EAST TO THE LOWER 50S
WEST ON SUNDAY MORNING. HIGHS ON SUNDAY WILL BE FROM NEAR 80 NORTH
TO THE LOWER 80S SOUTH...WHICH IS CLOSE TO MOS GUIDANCE.

SOUTHERLY RETURN FLOW WILL COME BACK TO THE REGION AHEAD OF AN
APPROACHING FRONT. THERE WILL BE A SERIES OF WEAK DISTURBANCES AND
JUST ENOUGH INSTABILITY TO SQUEEZE OUT SOME ISOLATED CONVECTION FOR
MONDAY THROUGH WEDNESDAY. DAILY HIGHS WILL BE IN THE LOWER TO MIDDLE
80S. NIGHTLY LOWS RISE FROM THE 50S ON MONDAY MORNING TO THE LOWER
AND MIDDLE 60S WEDNESDAY MORNING. THIS WILL BE DUE TO A WARMING
TREND AS MORE GULF MOISTURE RETURNS TO THE REGION. WENT CLOSE TO MEX
GUIDANCE ON GUIDANCE. THERE WAS SOME DIFFERENCES IN THE MODELS THE
EUROPEAN BRINGS FRONT INTO THE REGION ON WEDNESDAY...WHILE THE GFS
HAS THE FRONT APPROACHING THE REGION ON WEDNESDAY. WILL GO WITH THE
EUROPEAN FRONTAL BOUNDARY BECOMING STATIONARY ACROSS THE NORTH ON
WEDNESDAY...THEN IT WILL RETURN TO THE NORTH AS ANOTHER AREA OF LOW
PRESSURE DEVELOPS ACROSS THE SOUTHERN PLAINS.

LOOKING AT THURSDAY INTO FRIDAY...OUR CHANCES OF RAIN WILL CONTINUE
THROUGH THE REST OF THE WORK WEEK AS LOW LEVEL SOUTHERLY FLOW
CONTINUES OVER THE REGION. A COLD FRONT WILL APPROACH THE REGION
FROM THE NORTHWEST. THE EUROPEAN MODEL WAS MUCH SLOWER WITH THE
APPROACH OF THE FRONT WITH THE FRONT NEAR THE ARKLAMISS ON 12Z
SATURDAY. THE REASON FOR THIS IS BECAUSE IT WAS SLOWER THE
ASSOCIATED SHORT WAVE ENERGY MOVING OVER THE 4 CORNERS REGION ON
FRIDAY MORNING...WHILE THE GFS HAS IT PUSHING ACROSS THE MID TO
UPPER PLAINS. WITH THE RIDGING OVER THE REGION...WILL GO WITH THE
SLOWER EUROPEAN MODEL AND KEEP SMALL POPS FOR THE LONG TERM PERIOD.
MADE ONLY MINOR ADJUSTMENTS TO MEX POPS. LOWS WILL BE IN THE LOWER
TO MIDDLE 60S. HIGHS WILL CONTINUE IN THE LOWER TO MIDDLE 80S./17/

&&

.AVIATION...SHOWERS AND EMBEDDED STRONG TO LOCALLY SEVERE
THUNDERSTORMS WILL MOVE ACROSS AREAS EAST OF THE MS RIVER THROUGH
THE REST OF THE LATE AFTERNOON AND EARLY EVENING HOURS. EXPECT A
GOOD DEAL OF THE CEILINGS ASSOCIATED WITH THIS ACTIVITY TO BE IN THE
MVFR RANGE...ALTHOUGH VFR CONDITIONS AND CALMER WEATHER WILL MOVE IN
QUICKLY BY MID EVENING AS THE FRONTS MOVES THROUGH. CLEARING SKIES
LATER TONIGHT WILL BRING THE POTENTIAL FOR FOG DEVELOPMENT ACROSS
MAINLY THE EASTERN HALF OF MS. SATURDAY SHOULD FEATURE SUNNY SKIES
AND WEST WINDS BELOW 20 MPH AFTER ANY MORNING FOG BURNS OFF. /BB/

&&

.PRELIMINARY POINT TEMPS/POPS...
JACKSON       46  77  50  81 /  14   0   0   8
MERIDIAN      46  76  47  82 /  77   0   0   8
VICKSBURG     47  78  51  83 /   1   0   0   7
HATTIESBURG   48  78  50  83 /  88   0   0   3
NATCHEZ       45  77  50  82 /   1   0   0   3
GREENVILLE    49  76  52  81 /   1   0   0   9
GREENWOOD     47  75  50  81 /   9   0   0   8

&&

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

50

Hazardous weather outlook, Apr 18, 5:09 PM CDT, 1 hour 36 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE JACKSON MS
509 PM CDT FRI APR 18 2008

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
192215-
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-
509 PM CDT FRI APR 18 2008

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

.DAY ONE...TONIGHT AND SATURDAY

SCATTERED SEVERE THUNDERSTORMS ARE EXPECTED TO PUSH EAST THROUGH
EASTERN PORTIONS OF MISSISSIPPI THROUGH THE REST OF THIS AFTERNOON
AND EARLY THIS EVENING. THE HIGHEST RISK FOR SEVERE THUNDERSTORMS
EXISTS SOUTH OF HIGHWAY 25. THE MAIN RISK WITH STORMS IN THE MENTIONED
AREAS WILL BE HIGH WINDS AND EMBEDDED TORNADOES...ALTHOUGH THE RISK
FOR LARGE HAIL CANNOT BE COMPLETELY RULED OUT.

THE COMBINATION OF INCOMING GULF MOISTURE AND A STRONG DISTURBANCE
IS EXPECTED TO PRODUCE THUNDERSTORMS ALONG A COLD FRONT THAT WILL BE
SWEEPING EAST THROUGH THE REGION BY EARLY TO MID EVENING.

.DAYS TWO THROUGH SEVEN...SATURDAY NIGHT THROUGH THURSDAY

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 NEEDED FOR THE EASTERN HALF OF CENTRAL MISSISSIPPI
LATE THIS AFTERNOON THROUGH THIS EVENING. ACTIVATION IS OTHERWISE
NOT ANTICIPATED THROUGH THURSDAY APRIL 24.

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

50

In the hours before

Local storm report, Apr 18, 4:59 PM CDT, 1 hour 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
459 PM CDT FRI APR 18 2008

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

0340 PM     TORNADO          8 E CARPENTER           32.03N 90.54W
04/18/2008                   COPIAH             MS   EMERGENCY MNGR

            ROOF OF A HOME HEAVILY DAMAGED AND NUMEROUS TREES AND
            LARGE LIMBS DOWN. POSSIBLE TORNADO.

&&

KLW

Local storm report, Apr 18, 5:32 PM CDT, 1 hour 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
532 PM CDT FRI APR 18 2008

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

0500 PM     TSTM WND DMG     3 S OFAHOMA             32.66N 89.70W
04/18/2008                   LEAKE              MS   EMERGENCY MNGR

            MANY TREES DOWN ON SWAMP ROAD. TREE DOWN ACROSS ROAD ALSO
            JUST WEST OF CARTHAGE AND TREE DOWN ACROSS A ROAD IN THE
            NORTHWEST PART OF THE COUNTY.

&&

KLW

Local storm report, Apr 18, 5:45 PM CDT, 1 hour before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
545 PM CDT FRI APR 18 2008

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

0445 PM     TSTM WND DMG     3 N CAMDEN              32.83N 89.84W
04/18/2008                   MADISON            MS   EMERGENCY MNGR

            TREES AND POWER LINES DOWN ALONG HIGHWAY 43. TOPS OF SOME
            TREES WERE SNAPPED.

&&

KLW

Local storm report, Apr 18, 6:09 PM CDT, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
609 PM CDT FRI APR 18 2008

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

0600 PM     HAIL             6 N BAXTERVILLE         31.17N 89.59W
04/18/2008  E1.00 INCH       LAMAR              MS   EMERGENCY MNGR

&&

KLW

Local storm report, Apr 18, 6:22 PM CDT, 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
622 PM CDT FRI APR 18 2008

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

0340 PM     TORNADO          8 E CARPENTER           32.03N 90.54W
04/18/2008                   COPIAH             MS   EMERGENCY MNGR

            1 HOUSE ROOF HEAVILY DAMAGED AND AROUND 50 TREES DOWN.
            OVER 30 TREES WERE ACROSS ROADS. POSSIBLE TORNADO.

0400 PM     TORNADO          2 NW TERRY              32.12N 90.32W
04/18/2008                   HINDS              MS   EMERGENCY MNGR

            HINDS EOC REPORTS 20 HOMES WITH VARYING DEGREES OF
            DAMAGE. DAMAGE PATH EXTENDS ABOUT THREE-QUARTERS OF A
            MILE FROM DULANGY ROAD TO INTERSECTION OF OLD JACKSON AND
            FLOWERS ROAD. POSSIBLE TORNADO.

&&

KLW

Local storm report, Apr 18, 6:25 PM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
625 PM CDT FRI APR 18 2008

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

0620 PM     TSTM WND DMG     LOUISVILLE              33.12N 89.05W
04/18/2008                   WINSTON            MS   LAW ENFORCEMENT

            NUMEROUS TREES DOWN AROUND THE LOUISVILLE AREA.

&&

KLW

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 18, 4:10 AM CDT	Lake Wind Advisory	JAN	Bolivar, Humphreys, Issaquena, Leflore, Sharkey, Sunflower and 1 more	10 hr
Apr 18, 3:28 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Hinds	47 min
Apr 18, 3:33 PM CDT	Tornado Warning	JAN	Copiah, Hinds	42 min
Apr 18, 4:08 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Rankin	52 min
Apr 18, 4:21 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Montgomery	54 min
Apr 18, 4:33 PM CDT	Flash Flood Warning	JAN	Hinds, Madison, Rankin	93 min
Apr 18, 4:54 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Scott	51 min
Apr 18, 5:09 PM CDT	Severe Thunderstorm Warning	JAN	Marion	52 min
Apr 18, 5:27 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Choctaw, Leake, Neshoba, Winston	35 min
Apr 18, 5:44 PM CDT	Severe Thunderstorm Warning	JAN	Scott, Smith	46 min
Apr 18, 5:48 PM CDT	Tornado Warning	JAN	Lamar, Marion	41 min
Apr 18, 5:52 PM CDT	Severe Thunderstorm Warning	JAN	Clay, Webster	38 min
Apr 18, 6:07 PM CDT	Tornado Warning	JAN	Forrest, Lamar	53 min
Apr 18, 6:25 PM CDT	Severe Thunderstorm Warning	JAN	Clay, Lowndes, Noxubee, Oktibbeha, Winston	65 min
Apr 18, 6:40 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale, Neshoba, Newton	65 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.