Alert archive / Mississippi / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 355, NWS Jackson, MS

July 21, 2002Hinds County, Rankin County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jul 21, 2002, 6:12 PM CDT for Hinds County, Rankin County, Mississippi. It was in force for 48 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: Jul 21, 2002, 6:12 PM CDT (23:12 UTC)
Expired: Jul 21, 2002, 7:00 PM CDT
In force: 48 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

Counties Hinds County, MS, Rankin 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 nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.2 hours before the alert went out and 222 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: 2757 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 861 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -35 m²/s²
0-3 km storm-relative helicity: -32 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.

765 
WUUS54 KJAN 212312
SVRJAN
MSC049-121-220000-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
611 PM CDT SUN JUL 21 2002

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  RANKIN COUNTY IN CENTRAL MISSISSIPPI
  HINDS COUNTY IN CENTRAL MISSISSIPPI

* UNTIL 700 PM CDT

* AT 611 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  A LINE OF SEVERE THUNDERSTORMS FROM THE SOUTH SIDE OF THE CITY OF
  JACKSON...TO PEARL...TO 5 MILES SOUTH OF BRANDON...MOVING SOUTHWEST
  AT 20 MPH.

* THE SEVERE THUNDERSTORMS WILL...
  BE NEAR FLORENCE AT 635 PM CDT
  BE NEAR TERRY AT 655 PM CDT

THESE STORMS HAVE A HISTORY OF PRODUCING WIND GUSTS TO 70 MPH AND 
HAIL TO THE SIZE OF QUARTERS.

LAT...LON 3225 8999 3234 9018 3215 9034 3210 9009

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 21, 3:25 PM CDT, 2 hours 47 minutes earlier.

Area forecast discussion, Jul 21, 3:25 PM CDT, 2 hours 47 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
325 PM CDT SUN JUL 21 2002

THE MAIN FORECAST CONCERN OVER THE NEXT FEW DAYS WILL CONTINUE TO BE
THE CHANCE OF SHOWERS AND THUNDERSTORMS AND THE EFFECT OF A MID
SUMMER FRONT THAT SHOULD PUSH INTO MISSISSIPPI BY WEDNESDAY.

FOR TONIGHT...EXPECT THUNDERSTORM ACTIVITY TO PERSIST INTO THE
EVENING HOURS AS BOUNDARIES FROM ONGOING CONVECTION CONTINUE TO
INITIATE ADDITIONAL SHOWER AND THUNDERSTORM ACTIVITY UP TO SEVERAL
HOURS AFTER SUNSET. A FEW SHOWERS OR THUNDERSTORMS COULD ALSO
DEVELOP LATER ON DURING THE NIGHT...BUT COVERAGE AFTER 9 PM SHOULD
BE VERY ISOLATED. FOR MONDAY AND TUESDAY...NOT MUCH CHANGE. EXPECT
CONTINUED WARM AND HUMID CONDITIONS WITH SCATTERED MAINLY AFTERNOON
AND EVENING THUNDERSTORMS. THUNDERSTORM ACTIVITY TUESDAY EVENING MAY
CONTINUE THROUGH THE NIGHT ACROSS PORTIONS OF THE FORECAST AREA DUE
TO AN APPROACHING FRONTAL SYSTEM. WILL KEEP SCATTERED SHOWERS AND
THUNDERSTORMS IN FORECAST FOR ALL ZONES THROUGH WEDNESDAY. WILL GO
WITH POPS FOR WEDNESDAY IN THE 40 PERCENT RANGE DUE TO ANTICIPATED
MOVEMENT OF A WEAK FRONT THROUGH MISSISSIPPI AND NORTHEAST LOUISIANA
DURING THE DAY.

FOR TEMPERATURES...MORE OF THE SAME WARM AND HUMID CONDITIONS.
SLIGHTLY COOLER TEMPERATURES ARE EXPECTED IN NORTHERN ZONES DUE TO
THE IMPACT OF THE FRONT...BUT WILL STILL KEEP HIGHS AROUND 90 THERE.
NOT MUCH CHANCE OF SIGNIFICANTLY COOL AIR MAKING IT INTO OUR
FORECAST AREA IN LATE JULY

IN THE EXTENDED...THURSDAY THROUGH SUNDAY...THUNDERSTORM ACTIVITY
SHOULD BE LESS WIDESPREAD THROUGH SATURDAY...ESPECIALLY IN NORTHERN
AND WESTERN SECTIONS AS DRIER AIR MOVES INTO THE LOWER MISSISSIPPI
VALLEY FOR SEVERAL DAYS. BY SUNDAY...EXPECT SCATTERED AFTERNOON AND
EVENING CONVECTION ONCE AGAIN. SLIGHTLY COOLER TEMPERATURES IN
NORTHERN SECTIONS ARE LIKELY FOR THURSDAY...BUT BACK INTO THE 90S
ACROSS THE ENTIRE FORECAST AREA BY FRIDAY.

PRELIM NUMBERS:
JAN 73/93/73/93 2423
MEI 72/92/72/92 2423

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

15

In the hours before

Special weather statement, Jul 21, 4:22 PM CDT, 1 hour 50 minutes before

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
221200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
422 PM CDT SUN JUL 21 2002

...THUNDERSTORMS...
SCATTERED SEVERE STORMS ARE EXPECTED OVER EXTREME SOUTHEAST
ARKANSAS...NORTHEAST LOUISIANA AND MUCH OF MISSISSIPPI THIS
AFTERNOON AND EVENING. THUNDERSTORMS WILL BE MORE NUMEROUS OVER
SOUTHEAST ARKANSAS AND MUCH OF MISSISSIPPI...AND SHOULD REMAIN
ISOLATED IN NATURE OVER PORTIONS OF NORTHEAST LOUISIANA.

A VERY UNSTABLE ATMOSPHERE IS IN PLACE OVER MUCH OF THE LOWER
MISSISSIPPI RIVER VALLEY. THIS INSTABILITY...ALONG WITH ABUNDANT
MOISTURE AND DAYTIME HEATING...WILL CONTINUE TO TRIGGER
THUNDERSTORMS THIS AFTERNOON AND EARLY EVENING. THESE
THUNDERSTORMS WILL TEND TO DEVELOP ALONG OUTFLOW
BOUNDARIES...CAUSED FROM PREVIOUS THUNDERSTORM ACTIVITY.  STORMS
WILL REMAIN VERY STRONG THROUGH SUNSET...BUT AS HEATING IS
LOST...STORMS SHOULD BEGIN TO WEAKEN AND BECOME MORE ISOLATED IN
NATURE.

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

Local storm report, Jul 21, 4:34 PM CDT, 1 hour 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
434 PM CDT SUN JUL 21 2002

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

0230 PM    MERIDIAN                  MS   WIND DAMAGE
07/21/02   LAUDERDALE                     LARGE LIMBS DOWN ON
                                          POWERLINES...REPORTED BY
                                          COUNTY DISPATCH.

0340 PM    5W BOGUE CHITTO           MS   WIND DAMAGE
07/21/02   LINCOLN                        NUMEROUS LARGE TREES
                                          DOWN...ONE ON A
                                          HOUSE...REPORTED BY MEMA

0428 PM    5SE CARROLLTON            MS   WIND DAMAGE
07/21/02   CARROLL                        LARGE TREE BLOWN ACROSS
                                          HIGHWAY 35...REPORTED BY
                                          CARROLL SO.

Local storm report, Jul 21, 4:50 PM CDT, 1 hour 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
450 PM CDT SUN JUL 21 2002

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

0300 PM    SUMRALL                   MS   WIND DAMAGE
07/21/02   LAMAR                          NUMEROUS TREES AND
                                          POWERLINES
                                          DOWN...REPORTED BY COUNTY
                                          DISPATCH.

Local storm report, Jul 21, 5:41 PM CDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
541 PM CDT SUN JUL 21 2002

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

0525 PM    RIDGELAND                 MS   0.75 INCH HAIL
07/21/02   MADISON                        REPORTED BY HAM RADIO
                                          OPERATOR

Local storm report, Jul 21, 5:56 PM CDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
556 PM CDT SUN JUL 21 2002

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

0554 PM    BRANDON                   MS   1.00 INCH HAIL
07/21/02   RANKIN                         REPORTED BY SPOTTER

Local storm report, Jul 21, 6:02 PM CDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
602 PM CDT SUN JUL 21 2002

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

0554 PM    BRANDON                   MS   60 MPH WIND GUST
07/21/02   RANKIN                         SPOTTER REPORTED WIND
                                          GUST UP TO 60 MPH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 2:03 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale	42 min
Jul 21, 2:21 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Forrest, Jones, Lamar	44 min
Jul 21, 2:44 PM CDT	Severe Thunderstorm Warning	JAN	Winston	46 min
Jul 21, 2:53 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson Davis, Lawrence, Lincoln, Marion	37 min
Jul 21, 2:54 PM CDT	Severe Thunderstorm Warning	JAN	Holmes	41 min
Jul 21, 3:01 PM CDT	Severe Thunderstorm Warning	JAN	Neshoba	39 min
Jul 21, 3:08 PM CDT	Severe Thunderstorm Warning	JAN	Humphreys, Sharkey, Yazoo	42 min
Jul 21, 3:13 PM CDT	Severe Thunderstorm Warning	JAN	Jasper	42 min
Jul 21, 3:31 PM CDT	Severe Thunderstorm Warning	JAN	Lincoln	44 min
Jul 21, 3:37 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Holmes	43 min
Jul 21, 3:44 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Leake	61 min
Jul 21, 3:53 PM CDT	Severe Thunderstorm Warning	JAN	Humphreys, Sunflower	52 min
Jul 21, 4:23 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Holmes	42 min
Jul 21, 4:27 PM CDT	Severe Thunderstorm Warning	JAN	Madison, Yazoo	43 min
Jul 21, 4:41 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee	59 min
Jul 21, 5:04 PM CDT	Severe Thunderstorm Warning	JAN	Lowndes	46 min
Jul 21, 5:10 PM CDT	Severe Thunderstorm Warning	JAN	Rankin, Smith	60 min
Jul 21, 5:12 PM CDT	Severe Thunderstorm Warning	JAN	Madison	43 min
Jul 21, 5:25 PM CDT	Severe Thunderstorm Warning	JAN	Sharkey, Washington	40 min
Jul 21, 5:26 PM CDT	Severe Thunderstorm Warning	JAN	Oktibbeha	44 min
Jul 21, 5:30 PM CDT	Severe Thunderstorm Warning	JAN	Hinds	40 min
Jul 21, 5:33 PM CDT	Severe Thunderstorm Warning	JAN	Hinds	37 min
Jul 21, 6:07 PM CDT	Severe Thunderstorm Warning	JAN	Clay, Webster	43 min
Jul 21, 6:51 PM CDT	Severe Thunderstorm Warning	JAN	Grenada	49 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.