Alert archive / Mississippi / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 769, NWS Jackson, MS

November 18, 2003Lamar County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Nov 18, 2003, 9:17 AM CST for Lamar County, Mississippi. It was in force for 58 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: Nov 18, 2003, 9:17 AM CST (15:17 UTC)
Expired: Nov 18, 2003, 10:15 AM CST
In force: 58 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

County Lamar County, MS

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 watch it was issued in

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

Issued	Product	Office	Lasted
Nov 18, 6:55 AM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 3.3 hours before the alert went out and 107 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: 309 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 620 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 273 m²/s²
0-3 km storm-relative helicity: 352 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.7

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KJAN 181517
SVRJAN
MSC073-181615-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
917 AM CST TUE NOV 18 2003

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LAMAR COUNTY IN SOUTHEAST MISSISSIPPI

* UNTIL 1015 AM CST

* AT 917 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 8 MILES WEST OF OLOH TO 14 MILES 
  WEST OF BAXTERVILLE...MOVING EAST AT 35 MPH.

* SEVERE THUNDERSTORMS WILL...
  BE NEAR OLOH AT 935 AM CST
  BE NEAR BAXTERVILLE AT 950 AM CST
  BE NEAR WEST HATTIESBURG AT 1010 AM CST
  BE NEAR PURVIS AT 1015 AM CST

LAT...LON 3103 8962 3136 8962 3140 8945 3135 8945
          3132 8935 3101 8935 3103 8947

$$

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 Nov 18, 9:00 AM CST, 17 minutes earlier.

Area forecast discussion, Nov 18, 9:00 AM CST, 17 minutes before

AREA FORECAST DISCUSSION...CORRECTED TO INCLUDE WIND ADVISORY
NATIONAL WEATHER SERVICE JACKSON MS
900 AM CST TUE NOV 18 2003

.UPDATED...WILL UPDATE THE ZONES AND GRIDS TO REMOVE SEVERE WORDING.
00Z SOUNDING...MSAS LIS AND RUC DATA SHOW STABLE AIR OVER THE AREA.
EXPECT LINE OF SHOWERS AND A FEW THUNDERSTORMS TO CONTINUE TO
DISSIPATE AS IT MOVES EAST. WILL CONTINUE CHANCE POPS NORTH...WITH
THE MAIN AREA OF RAIN STILL MOVING THROUGH. DECIDED TO REMOVE POPS
FOR THE SOUTHWEST AND LOWER POPS TO SLIGHT CHANCE OVER THE
SOUTHEAST. WINDS WILL CONTINUE TO PICK UP OVERNIGHT...AN UPDATE TO
THE WIND ADVISORY WILL ALSO BE OUT SHORTLY. MAY TWEAK TEMPS A
LITTLE...OTHERWISE THE FORECAST IS OK.

&&

.JAN WATCHES/WARNING/ADVISORIES...
MS...WIND ADVISORY TONIGHT AND WEDNESDAY...MSZ018-019-
025>027-034>036-040>043-047>049-053-054-059>062-
LA...WIND ADVISORY TONIGHT AND WEDNESDAY ALL ZONES
AR...WIND ADVISORY TONIGHT AND WEDNESDAY ALL ZONES
&&

Hazardous weather outlook, Nov 18, 6:10 AM CST, 3 hours 7 minutes before

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
191210-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
0610 AM CST TUE NOV 18 2003

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

.DAY ONE...TODAY AND TONIGHT...

...THUNDERSTORMS...
SQUALL LINE WITH POTENTIAL FOR DAMAGING WINDS AND ISOLATED
TORNADOES WILL HEAD ACROSS MISSISSIPPI AND MOVE TO THE ALABAMA
BORDER BY EARLY THIS AFTERNOON.  THE THREAT FOR WIDESPREAD AND
POSSIBLY SIGNIFICANT  DAMAGING WIND GUSTS WILL INCREASE WITH
DIURNAL HEATING ACROSS THE EASTERN PART OF MISSISSIPPI.

IN ADDITION...A DEEP UPPER LOW WILL DEVELOP OVER THE ARK-LA-TEX
THIS AFTERNOON.  THE POCKET OF COLD AIR ALOFT WILL RESULT IN
RATHER FAVORABLE CONDITIONS FOR ISOLATED SEVERE THUNDERSTORMS
WITH LARGE HAIL THIS AFTERNOON AND EVENING OVER SOUTHEAST
ARKANSAS AND NORTHERN MISSISSIPPI.  THE THREAT OF LARGE HAIL WILL
BE GREATEST ALONG AND NORTH OF A LINE FROM CROSSETT ARKANSAS TO
GREENVILLE TO GRENADA MISSISSIPPI.

...FLOODING...
ONE TO TWO INCHES OF RAIN IS EXPECTED ACROSS MUCH OF THE AREA
THIS MORNING...WITH THE RAIN ENDING FROM WEST TO EAST BY THE
MIDDAY AND EARLY AFTERNOON HOURS.  LOCAL TRAINING OF HEAVY
THUNDERSTORMS AND TOTALS OF TWO TO FOUR INCHES ARE POSSIBLE TODAY
GENERALLY SOUTH OF INTERSTATE 20.  FLOODING OF LOW LYING
AREAS...CREEKS...AND STREAMS IS POSSIBLE.  PONDING OF WATER ON
ROADWAYS WILL BE A PROBLEM...ESPECIALLY DURING THE MORNING
COMMUTE IN THE INTERSTATE 55 CORRIDOR.

...NON PRECIPITATION...
GUSTY SOUTH WINDS OF 15 TO 25 MPH WITH GUSTS OF 30 TO 35 MPH WILL
CONTINUE THIS MORNING AHEAD OF THE SQUALL LINE.  ABOUT AN HOUR
AFTER THE SQUALL LINE PASSES...THE WINDS WILL DIMINISH AS THEY
SHIFT TO WESTERLY.

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

...DAYS TWO AND THREE...WEDNESDAY AND THURSDAY...
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

...DAYS FOUR THROUGH SEVEN...FRIDAY THROUGH MONDAY...
A STRONG COLD FRONT WILL SWEEP ACROSS THE ARKLAMISS REGION SUNDAY
NIGHT.	ALTHOUGH STRONG VERTICAL WIND SHEAR WOULD SUPPORT SEVERE
THUNDERSTORMS INCLUDING THE POSSIBILITY OF TORNADOES WITH THIS
SYSTEM...THE RETURN OF GULF MOISTURE MAY BE TOO LIMITED TO RESULT
IN SUFFICIENT INSTABILITY FOR SEVERE THUNDERSTORMS.
HOWEVER...ANY INCREASE IN AVAILABLE MOISTURE WOULD RESULT IN A
SIGNIFICANT SEVERE WEATHER OUTBREAK.

.SPOTTER CALL TO ACTION STATEMENT...
THE ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND
EMERGENCY MANAGEMENT PERSONNEL AND STORM SPOTTERS WILL BE NEEDED
THIS MORNING IN THE INTERSTATE 55 CORRIDOR AND UNTIL THE EARLY
AFTERNOON ALONG THE INTERSTATE 59 REGION.

SPOTTERS MAY BE NEEDED AGAIN THIS AFTERNOON AND EARLY THIS
EVENING ALONG AND NORTH OF THE HIGHWAY 82 CORRIDOR.

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, Nov 18, 8:12 AM CST, 1 hour 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
812 AM CST TUE NOV 18 2003

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0645 AM    2S YAZOO CITY             MS   WIND DAMAGE
11/18/03   YAZOO                          TWO TREES DOWN. REPORTED
                                          BY YAZOO COUNTY 911.

Local storm report, Nov 18, 8:30 AM CST, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
830 AM CST TUE NOV 18 2003

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0815 AM    3S THOMASVILLE            MS   WIND DAMAGE
11/18/03   RANKIN                         A FEW TREES DOWN.
                                          REPORTED BY HAM RADIO
                                          OPERATOR.

Local storm report, Nov 18, 8:41 AM CST, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
841 AM CST TUE NOV 18 2003

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0824 AM    MAGEE                     MS   WIND DAMAGE
11/18/03   SIMPSON                        NUMEROUS TREES DOWN.
                                          ROOF/HOUSE DAMAGED.
                                          REPORTED BY SIMPSON
                                          COUNTY SHERIFFS OFFICE.

Local storm report, Nov 18, 8:46 AM CST, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
846 AM CST TUE NOV 18 2003

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0715 AM    TCHULA                    MS   WIND DAMAGE
11/18/03   HOLMES                         TWO TREES AND POWERLINES
                                          DOWN. REPORTED BY HOLMES
                                          COUNTY EMA.

Local storm report, Nov 18, 8:48 AM CST, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
848 AM CST TUE NOV 18 2003

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0845 AM    MAGEE                     MS   WIND DAMAGE
11/18/03   SIMPSON                        A FEW TREES DOWN.
                                          REPORTED BY HAM RADIO
                                          OPERATOR.

Local storm report, Nov 18, 9:03 AM CST, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
903 AM CST TUE NOV 18 2003

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0850 AM    RALEIGH                   MS   WIND DAMAGE
11/18/03   SMITH                          MOBLIE HOMES DAMAGED.
                                          PEOPLE TRAPPED IN MOBLIE
                                          HOME. REPORTED BY SMITH
                                          COUNTY SHERIFFS OFFICE.

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 18, 4:12 AM CST	Severe Thunderstorm Warning	JAN	Bolivar, Sunflower, Washington	58 min
Nov 18, 5:00 AM CST	Severe Thunderstorm Warning	JAN	Adams, Jefferson	60 min
Nov 18, 5:14 AM CST	Severe Thunderstorm Warning	JAN	Claiborne, Issaquena, Jefferson, Warren	31 min
Nov 18, 5:16 AM CST	Severe Thunderstorm Warning	JAN	Bolivar, Leflore, Sunflower	59 min
Nov 18, 5:28 AM CST	Tornado Warning	JAN	Issaquena, Sharkey, Warren	47 min
Nov 18, 5:32 AM CST	Tornado Warning	JAN	Issaquena, Sharkey, Warren	43 min
Nov 18, 6:05 AM CST	Tornado Warning	JAN	Humphreys	45 min
Nov 18, 6:14 AM CST	Severe Thunderstorm Warning	JAN	Hinds, Madison, Yazoo	61 min
Nov 18, 6:27 AM CST	Severe Thunderstorm Warning	JAN	Jefferson	23 min
Nov 18, 6:34 AM CST	Severe Thunderstorm Warning	JAN	Copiah	61 min
Nov 18, 6:40 AM CST	Tornado Warning	JAN	Leflore	45 min
Nov 18, 7:04 AM CST	Severe Thunderstorm Warning	JAN	Holmes, Yazoo	46 min
Nov 18, 7:15 AM CST	Severe Thunderstorm Warning	JAN	Hinds, Rankin	60 min
Nov 18, 7:17 AM CST	Severe Thunderstorm Warning	JAN	Attala, Madison	58 min
Nov 18, 8:20 AM CST	Severe Thunderstorm Warning	JAN	Simpson, Smith	45 min
Nov 18, 8:25 AM CST	Tornado Warning	JAN	Simpson, Smith	45 min
Nov 18, 8:28 AM CST	Tornado Warning	JAN	Simpson, Smith	42 min
Nov 18, 8:32 AM CST	Severe Thunderstorm Warning	JAN	Jefferson Davis	18 min
Nov 18, 8:39 AM CST	Severe Thunderstorm Warning	JAN	Choctaw	26 min
Nov 18, 8:44 AM CST	Severe Thunderstorm Warning	JAN	Oktibbeha, Winston	46 min
Nov 18, 8:49 AM CST	Severe Thunderstorm Warning	JAN	Marion	61 min
Nov 18, 8:50 AM CST	Severe Thunderstorm Warning	JAN	Webster	30 min
Nov 18, 8:51 AM CST	Tornado Warning	JAN	Jasper, Newton, Scott	59 min
Nov 18, 8:54 AM CST	Severe Thunderstorm Warning	JAN	Covington	61 min
Nov 18, 9:01 AM CST	Severe Thunderstorm Warning	JAN	Clay	49 min
Nov 18, 9:02 AM CST	Tornado Warning	JAN	Marion	58 min
Nov 18, 9:07 AM CST	Severe Thunderstorm Warning	JAN	Neshoba	43 min
Nov 18, 9:11 AM CST	Severe Thunderstorm Warning	JAN	Choctaw	29 min
Nov 18, 9:12 AM CST	Severe Thunderstorm Warning	JAN	Jones	58 min
Nov 18, 9:30 AM CST	Severe Thunderstorm Warning	JAN	Oktibbeha, Winston	45 min
Nov 18, 9:33 AM CST	Tornado Warning	JAN	Kemper, Lauderdale	57 min
Nov 18, 9:38 AM CST	Tornado Warning	JAN	Forrest, Lamar	62 min
Nov 18, 9:41 AM CST	Tornado Warning	JAN	Covington, Jones	59 min
Nov 18, 9:46 AM CST	Severe Thunderstorm Warning	JAN	Clay	44 min
Nov 18, 9:51 AM CST	Tornado Warning	JAN	Clarke, Jasper, Newton	59 min
Nov 18, 9:55 AM CST	Severe Thunderstorm Warning	JAN	Noxubee	45 min
Nov 18, 10:04 AM CST	Severe Thunderstorm Warning	JAN	Lowndes	46 min
Nov 18, 10:29 AM CST	Tornado Warning	JAN	Lauderdale	61 min
Nov 18, 10:36 AM CST	Tornado Warning	JAN	Lowndes, Noxubee	24 min
Nov 18, 10:38 AM CST	Tornado Warning	JAN	Forrest	62 min
Nov 18, 10:41 AM CST	Tornado Warning	JAN	Jones	59 min
Nov 18, 10:50 AM CST	Severe Thunderstorm Warning	JAN	Clarke	40 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2003 Every severe thunderstorm warning in 2003

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.