Alert archive / Mississippi / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 360, NWS Jackson, MS

July 22, 2002Lincoln County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jul 22, 2002, 1:47 PM CDT for Lincoln County, Mississippi. It was in force for 43 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 22, 2002, 1:47 PM CDT (18:47 UTC)
Expired: Jul 22, 2002, 2:30 PM CDT
In force: 43 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

County Lincoln County, MS

What was reported inside it

Time	Report	Where	Remark
Jul 22, 1:55 PM CDT	Hail 0.75	Brookhaven, MS	A severe thunderstorm produced dime-sized hail on State Road 583, just southeast of the city.
Jul 22, 2:01 PM CDT	Hail 0.75	Brookhaven, MS	Hail in a severe thunderstorm fell at such a rate that it reduced visibility and forced area motorists to pull off the road at the intersection of U.S. Highway 84 and Hog Chain Road.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

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 nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 6.8 hours before the alert went out and 157 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: 807 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 1057 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -35 m²/s²
0-3 km storm-relative helicity: 8 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

250 
WUUS54 KJAN 221847
SVRJAN
MSC085-221930-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
145 PM CDT MON JUL 22 2002

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LINCOLN COUNTY IN SOUTH CENTRAL MISSISSIPPI

* UNTIL 230 PM CDT

* AT 145 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A CLUSTER OF SEVERE THUNDERSTORMS OVER CENTRAL AND SOUTHEAST       
  PORTIONS OF LINCOLN COUNTY. STORMS WERE DEVELOPING AND DRIFTING    
  SOUTHEAST AT 5 MPH.

* THE SEVERE THUNDERSTORMS WILL...
  AFFECT THE BROOKHAVEN TO BOGUE CHITTO AND RUTH AREA 

DAMAGING WINDS...HEAVY RAIN AND HAIL ARE LIKELY. SEEK SHELTER IN A
STURDY BUILDING AND STAY AWAY FROM WINDOWS.

LAT...LON 3162 9056 3137 9039 3137 9025 3147 9025
          3159 9027 3170 9038

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 Jul 22, 2:40 AM CDT, 11 hours 7 minutes earlier.

Area forecast discussion, Jul 22, 2:40 AM CDT, 11 hours 7 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
240 AM CDT MON JUL 22 2002

CONCERNS THIS FORECAST WILL BE WITH TSRA CHANCES THIS AFTERNOON...
FOCUSING ON THE SW ZONES.

FOR TODAY...BEST RAIN CHANCES LOOK TO BE ACROSS MY LA PARISHES AND
SW MS...AS THIS AREA WAS BARELY TOUCHED BY SUNDAYS CONVECTION. REST
OF THE FORECAST AREA WAS WORKED OVER BY STRONG CONVECTION...AND I
FEEL THAT GUIDANCE IS A LITTLE ON THE AGGRESSIVE SIDE FOR POPS.
WEST/SW AREAS CURRENTLY HAVE THE HIGHEST SFC MOISTURE AND THEY WILL
RESIDE IN THE 850 THETA E AXIS TODAY. SFC HEATING WILL NOT BE A
PROBLEM TODAY AND STORMS WILL FIRE WITHIN OUR MID/UPPER LEVEL
TROUGH/SHEAR AXIS. THE AXIS OF THE TROUGH WILL BE MORE DISTINCT OVER
THE W/SW AREAS WITH A BROAD AXIS ALONG AND SOUTH OF I-20. WILL GO
LIKELY POPS SW ZONES AND SCT I-20 AND SOUTH. CONVECTION WILL
DIMINISH AS THE SUN SETS AND WILL WORD ISOLATED POPS FOR TONIGHT.

SFC TEMPS WILL RANGE BETWEEN 90-95 WITH SFC DEW PTS BETWEEN 70-75.
THIS WILL RESULT IN HEAT INDICES BETWEEN 100-105. THIS IS A LITTLE
LOWER THAN PREVIOUS DAYS AND WILL NOT MENTION IN ZONES.

FOR TUE...SHEAR AXIS BECOMES MORE OF A CIRCULATION...WHICH WILL BE
LOCATED TO THE EAST OF MS. THE AFFECT ON OUR WEATHER WILL BE LESS
THUNDERSTORMS IN THE AFTERNOON...WITH THE TRADE OFF BEING HIGHER
TEMPS. THE BEST RAIN CHANCES WILL BE OVER THE EAST...AS THEY WILL BE
CLOSER TO THE CIRCULATION. INTO TUE NIGHT...GUIDANCE STILL
INDICATING A WEAK FRONT MOVING INTO THE AREA. AVN IS STILL THE MOST
AGGRESSIVE AS IT BRINGS THE FRONT TO MY SOUTHERN COUNTIES. I PREFER
THE ETA...AS IT HAS THE FRONT ACROSS MY NORTHERN COUNTIES BY WED
MORNING. THIS SFC BOUNDARY SHOULD REMAIN IN THIS GENERAL LOCATION
THROUGH THE WEEK...PROVIDING SCT ACTIVITY. NO CHANGES TO THE
EXTENDED.

JAN 93/72/94/73/92 4222
MEI 93/71/94/73/91 3142

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

36

In the hours before

Local storm report, Jul 22, 11:05 AM CDT, 2 hours 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
1105 AM CDT MON JUL 22 2002

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

0318 PM    STRINGER                  MS   1.00 INCH HAIL
07/21/02   JASPER                         REPORTED BY CIVIL
                                          DEFENSE

0610 PM    MANTEE                    MS   WIND DAMAGE
07/21/02   WEBSTER                        TREES DOWN REPORTED BY
                                          PUBLIC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 1:30 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Holmes, Madison, Yazoo	45 min
Jul 22, 2:14 PM CDT	Severe Thunderstorm Warning	JAN	Neshoba	41 min
Jul 22, 2:29 PM CDT	Severe Thunderstorm Warning	JAN	Rankin	46 min
Jul 22, 2:41 PM CDT	Severe Thunderstorm Warning	JAN	Hinds	44 min
Jul 22, 3:00 PM CDT	Severe Thunderstorm Warning	JAN	Leake	40 min
Jul 22, 3:00 PM CDT	Severe Thunderstorm Warning	JAN	Leake	45 min
Jul 22, 3:10 PM CDT	Severe Thunderstorm Warning	JAN	Copiah	45 min
Jul 22, 3:32 PM CDT	Severe Thunderstorm Warning	JAN	Simpson, Smith	43 min
Jul 22, 3:33 PM CDT	Severe Thunderstorm Warning	JAN	Scott	42 min
Jul 22, 3:50 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Choctaw, Montgomery	50 min
Jul 22, 4:09 PM CDT	Severe Thunderstorm Warning	JAN	Holmes	46 min
Jul 22, 4:17 PM CDT	Severe Thunderstorm Warning	JAN	Jasper, Smith	43 min
Jul 22, 4:18 PM CDT	Severe Thunderstorm Warning	JAN	Yazoo	47 min
Jul 22, 4:41 PM CDT	Severe Thunderstorm Warning	JAN	Oktibbeha	44 min
Jul 22, 5:23 PM CDT	Severe Thunderstorm Warning	JAN	Hinds	42 min
Jul 22, 5:24 PM CDT	Severe Thunderstorm Warning	JAN	Clarke	46 min
Jul 22, 5:46 PM CDT	Severe Thunderstorm Warning	JAN	Marion	44 min
Jul 22, 6:18 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Hinds	47 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.