Alert archive / Mississippi / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 534, NWS Jackson, MS

December 19, 2002Forrest County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Dec 19, 2002, 2:00 PM CST for Forrest County, Mississippi. It was in force for 40 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: Dec 19, 2002, 2:00 PM CST (20:00 UTC)
Expired: Dec 19, 2002, 2:40 PM CST
In force: 40 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

County Forrest County, MS

The radar

The Mobile radar (KMOB), 123 km from the middle of the area, began a volume at 20:01 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 watch it was issued in

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

Issued	Product	Office	Lasted
Dec 19, 9:35 AM CST	Tornado Watch	SPC	5 hr
Dec 19, 11:40 AM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.0 hours before the alert went out and 127 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: 668 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 480 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 304 m²/s²
0-3 km storm-relative helicity: 417 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.3

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KJAN 192000
SVRJAN
MSC035-192040-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
200 PM CST THU DEC 19 2002

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

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

* UNTIL 240 PM CST

* AT 200 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 10 MILES SOUTHWEST OF HATTIESBURG...OR ABOUT 8
  MILES SOUTHWEST OF WEST HATTIESBURG...MOVING NORTHEAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL...
  BE NEAR HATTIESBURG...PETAL AT 210 PM CST

A TORNADO WATCH IS ALSO IN EFFECT. TORNADOES CAN DEVELOP SUDDENLY
FROM SEVERE THUNDERSTORMS.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES SUDDENLY. BE ALERT FOR
RAPIDLY CHANGING WEATHER CONDITIONS AND BE READY TO ACT QUICKLY.

LAT...LON 3134 8935 3125 8928 3132 8916 3143 8922

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 Dec 19, 1:35 PM CST, 25 minutes earlier.

Area forecast discussion, Dec 19, 1:35 PM CST, 25 minutes before

AREA FORECAST DISCUSSION...UPDATED...
NATIONAL WEATHER SERVICE JACKSON MS
135 PM CST THU DEC 19 2002

UPDATED ZONES TO REFLECT ISOLATED ELEVATED CONVECTION BEHIND THE
FRONT...WHICH STRETCHES FROM WEST OF TUPELO TO EAST OF JACKSON TO
MCCOMB.

.JAN...
AR...NONE.
LA...NONE.
MS...NONE.

17

Hazardous weather outlook, Dec 19, 12:20 PM CST, 1 hour 40 minutes before

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
201200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
1220 PM CST THU DEC 19 2002

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

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

...THUNDERSTORMS...
SEVERE THUNDERSTORMS WILL BE POSSIBLE TODAY OVER PORTIONS OF EAST
AND SOUTH MISSISSIPPI. WIND GUSTS TO 70 MPH...DANGEROUS LIGHTNING
AND HEAVY RAIN CAN BE EXPECTED. ISOLATED TORNADOES WILL ALSO BE
POSSIBLE.

A STRONG LINE OF SHOWERS AND THUNDERSTORMS ALONG AND AHEAD OF A
COLD FRONT EXTENDING FROM MATHISTON MISSISSIPPI TO BRANDON TO
MONTICELLO WILL MOVE EASTWARD THROUGH THE LOWER MISSISSIPPI RIVER
VALLEY THIS AFTERNOON. A STRONG UPPER LEVEL DISTURBANCE ENTERING
THE REGION WILL ENHANCE THE DEVELOPMENT OF SEVERE STORMS AND
TORNADOES WITHIN AND AHEAD OF THE LINE OF THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...

...DAYS TWO AND THREE...
NO HAZARDOUS WEATHER IS EXPECTED THROUGH THE PERIOD.

...DAYS FOUR THROUGH SEVEN...
AN UPPER LEVEL TROUGH IS EXPECTED TO DEEPEN OVER TEXAS BY
TUESDAY.  AT THE SURFACE...A STRONG LOW PRESSURE AREA WILL
DEVELOP AHEAD OF THIS TROUGH.  THIS SURFACE LOW WILL EVENTUALLY
MOVE EAST INTO THE LOWER MISSISSIPPI RIVER VALLEY.  WITH AN
UNSTABLE AIRMASS EXPECTED TO BE IN PLACE...STRONG THUNDERSTORMS
COULD DEVELOP ACROSS EXTREME SOUTHEAST ARKANSAS...NORTHEAST
LOUISIANA AND MUCH OF MISSISSIPPI ON CHRISTMAS EVE.

.SPOTTER CALL TO ACTION STATEMENT...
THE ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND
EMERGENCY MANAGEMENT PERSONNEL IN SUPPORT OF SEVERE WEATHER
OPERATIONS...IS ANTICIPATED THROUGH THIS EVENING.

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, Dec 19, 12:09 PM CST, 1 hour 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
0109 PM EST THU DEC 19 2002

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

1200 PM    MENDENHALL                MS   60 MPH WIND GUST
12/19/02   SIMPSON

MRW

Local storm report, Dec 19, 12:40 PM CST, 1 hour 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
1240 PM CST THU DEC 19 2002

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

1226 PM    5S MAGEE                  MS   TORNADO
12/19/02   SIMPSON                        UNCONFIRMED. REPORTED BY
                                          POLICE.

Local storm report, Dec 19, 12:52 PM CST, 1 hour 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
1252 PM CST THU DEC 19 2002

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

1233 PM    MIZE                      MS   60 MPH WIND GUST
12/19/02   SMITH                          REPORTED BY POLICE.

Local storm report, Dec 19, 1:09 PM CST, 51 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED TIME TO CST
NATIONAL WEATHER SERVICE JACKSON MS
0109 PM CST THU DEC 19 2002

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

1200 PM    MENDENHALL                MS   60 MPH WIND GUST
12/19/02   SIMPSON

MRW

Local storm report, Dec 19, 1:37 PM CST, 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
137 PM CST THU DEC 19 2002

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

0122 PM    BAY SPRINGS               MS   WIND DAMAGE
12/19/02   JASPER                         A FEW TREES DOWN REPORTED
                                          BY POLICE.

Local storm report, Dec 19, 1:44 PM CST, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
144 PM CST THU DEC 19 2002

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

0115 PM    NEWTON                    MS   WIND DAMAGE
12/19/02   NEWTON                         BUSINESS DAMAGED.
                                          POWERLINES DOWN. REPORTED
                                          BY NEWTON COUNTY SHERIFFS
                                          OFFICE. REPORTED BY
                                          POLICE.

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 19, 2:09 AM CST	Flash Flood Warning	JAN	Bolivar	4 hr
Dec 19, 2:37 AM CST	Severe Thunderstorm Warning	JAN	Bolivar	58 min
Dec 19, 6:00 AM CST	Flash Flood Warning	JAN	Bolivar	2 hr
Dec 19, 8:31 AM CST	Severe Thunderstorm Warning	JAN	Humphreys, Sunflower	24 min
Dec 19, 8:38 AM CST	Severe Thunderstorm Warning	JAN	Adams	47 min
Dec 19, 9:09 AM CST	Severe Thunderstorm Warning	JAN	Warren	46 min
Dec 19, 9:11 AM CST	Severe Thunderstorm Warning	JAN	Jefferson	29 min
Dec 19, 9:53 AM CST	Severe Thunderstorm Warning	JAN	Claiborne, Copiah	27 min
Dec 19, 10:07 AM CST	Tornado Warning	JAN	Yazoo	28 min
Dec 19, 10:11 AM CST	Tornado Warning	JAN	Simpson	19 min
Dec 19, 10:20 AM CST	Severe Thunderstorm Warning	JAN	Copiah, Hinds	45 min
Dec 19, 10:36 AM CST	Tornado Warning	JAN	Yazoo	29 min
Dec 19, 10:45 AM CST	Severe Thunderstorm Warning	JAN	Franklin, Lincoln	45 min
Dec 19, 10:56 AM CST	Severe Thunderstorm Warning	JAN	Rankin	44 min
Dec 19, 10:58 AM CST	Tornado Warning	JAN	Attala, Holmes	32 min
Dec 19, 11:00 AM CST	Tornado Warning	JAN	Lincoln	30 min
Dec 19, 11:17 AM CST	Tornado Warning	JAN	Copiah, Lawrence	28 min
Dec 19, 11:32 AM CST	Tornado Warning	JAN	Simpson	43 min
Dec 19, 11:37 AM CST	Severe Thunderstorm Warning	JAN	Attala	28 min
Dec 19, 11:43 AM CST	Severe Thunderstorm Warning	JAN	Leake, Scott	42 min
Dec 19, 12:20 PM CST	Tornado Warning	JAN	Simpson, Smith	30 min
Dec 19, 12:23 PM CST	Severe Thunderstorm Warning	JAN	Jefferson Davis	27 min
Dec 19, 12:25 PM CST	Severe Thunderstorm Warning	JAN	Scott	30 min
Dec 19, 12:54 PM CST	Severe Thunderstorm Warning	JAN	Newton	31 min
Dec 19, 1:14 PM CST	Severe Thunderstorm Warning	JAN	Marion	46 min
Dec 19, 1:17 PM CST	Severe Thunderstorm Warning	JAN	Jasper	43 min
Dec 19, 1:17 PM CST	Tornado Warning	JAN	Newton	28 min
Dec 19, 1:20 PM CST	Tornado Warning	JAN	Lamar, Marion	30 min
Dec 19, 1:22 PM CST	Severe Thunderstorm Warning	JAN	Covington	43 min
Dec 19, 1:30 PM CST	Tornado Warning	JAN	Lauderdale	25 min
Dec 19, 1:39 PM CST	Severe Thunderstorm Warning	JAN	Jones	61 min
Dec 19, 1:49 PM CST	Severe Thunderstorm Warning	JAN	Lamar	26 min
Dec 19, 1:55 PM CST	Severe Thunderstorm Warning	JAN	Lauderdale	30 min
Dec 19, 2:14 PM CST	Severe Thunderstorm Warning	JAN	Clarke	31 min
Dec 19, 2:25 PM CST	Severe Thunderstorm Warning	JAN	Lauderdale	35 min
Dec 19, 2:39 PM CST	Severe Thunderstorm Warning	JAN	Forrest	31 min
Dec 19, 2:45 PM CST	Severe Thunderstorm Warning	JAN	Clarke, Lauderdale	30 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2002 Every severe thunderstorm warning in 2002

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.