Alert archive / Mississippi / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 569, NWS Jackson, MS

July 12, 2001Forrest County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jul 12, 2001, 4:20 PM CDT 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 the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Jul 12, 2001, 4:20 PM CDT (21:20 UTC)
Expired: Jul 12, 2001, 5:00 PM CDT
In force: 40 min
Issued by: NWS Jackson, MS
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Forrest County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 9.3 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: 493 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 1027 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 63 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.

000 
WUUS54 KJAN 122123 CCA
SVRJAN

MSC035-073-091-122200-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED DIRECTION FROM COLUMBIA
NATIONAL WEATHER SERVICE JACKSON MS
420 PM CDT THU JUL 12 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  FORREST COUNTY IN SOUTHEAST MISSISSIPPI
  LAMAR COUNTY IN SOUTHEAST MISSISSIPPI
  MARION COUNTY IN SOUTH CENTRAL MISSISSIPPI

* UNTIL 500 PM CDT

* AT 420 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A LINE OF SEVERE THUNDERSTORMS FROM 7 MILES SOUTHEAST OF PETAL TO  
  9 MILES WEST OF COLUMBIA...MOVING SOUTH AT 25 MPH.

* SEVERE THUNDERSTORMS WILL...
  BE NEAR PURVIS AT 440 PM CDT
  BE NEAR LUMBERTON AT 445 PM CDT

WINDS FROM 60 TO 70 MPH ARE LIKELY WITH THIS STORM.

HAIL TO THE SIZE OF NICKELS IS LIKELY WITH THIS STORM.

LAT...LON 3132 8908 3138 8942 3139 8980 3095 8980
          3095 8942 3089 8908

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 12, 2:00 PM CDT, 2 hours 20 minutes earlier.

Area forecast discussion, Jul 12, 2:00 PM CDT, 2 hours 20 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
200 PM CDT THU JUL 12 2001

LOOKS LIKE THIS COULD BE THE LAST DAY OF THE EXCESSIVE HEAT WE HAVE
BEEN HAVING FOR THE PAST WEEK. A SURFACE COLD FRONT IS FORECAST TO
PUSH THROUGH THE AREA TONIGHT AND FRIDAY. IN CONJUNCTION WITH THE
FRONT AN UPPER LEVEL SHORTWAVE WILL AID IN THE UPPER MOTION OF THE
AIRMASS OVER THE CWFA TONIGHT AND FRIDAY.

MCS OVER NORTHERN MS THIS AFTERNOON. I SEE NOTHING TO STOP IT FROM
CONTINUING SOUTH AS THE UPPER FLOW WILL REMAIN FROM THE NORTH AND
INCREASE AS EAST COAST AMPLIFIES SOUTHWARD. BOTH THE ETA AND AVN
BEGIN DRYING US OUT FROM THE NORTH ON FRIDAY AND BY SATURDAY SHOULD
SEE A DRY PLEASANT DAY WITH DEWPOINTS AROUND 10 DEGREES LOWER AND
TEMPS ABOUT 5 TO 10 DEGREES LOWER.

IN THE EXTENDED WILL KEEP IT DRY TILL TUESDAY AS SURFACE WINDS
BECOME MORE SOUTHERLY WILL BRING BACK THE CHANCES OF SUMMERTIME
THUNDERSTORMS.

JAN 74/90/69/89 5520
MEI 74/89/68/89 5420

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

02

In the hours before

Local storm report, Jul 12, 12:01 PM CDT, 4 hours 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
1201 PM CDT THU JUL 12 2001

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

0550 PM    2 W ADATON                MS   WIND DAMAGE
07/12/01   OKTIBBEHA                      S.O. REPORTED TREES
                                          DOWN.

0600 PM    RICHLAND                  MS   WIND DAMAGE
07/12/01   RANKIN                         P.D. REPORTED TREES
                                          DOWN AS WELL AS A ROOF
                                          BLOWN OFF OF A BARN.

0600 PM    RICHLAND                  MS   FLOOD
07/12/010   RANKIN                         P.D. REPORTED 3 HOUSES
                                          FLOODED.

Local storm report, Jul 12, 2:20 PM CDT, 2 hours before

PRELIMINARY LOCAL STORM REPORT...CORRECTION FOR DATES OF DAMAGE
NATIONAL WEATHER SERVICE JACKSON MS
220 PM CDT THU JUL 12 2001

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

0550 PM    2 W ADATON                MS   WIND DAMAGE
07/11/01   OKTIBBEHA                      S.O. REPORTED TREES
                                          DOWN.

0600 PM    RICHLAND                  MS   WIND DAMAGE
07/11/01   RANKIN                         P.D. REPORTED TREES
                                          DOWN AS WELL AS A ROOF
                                          BLOWN OFF OF A BARN.

0600 PM    RICHLAND                  MS   FLOOD
07/11/01   RANKIN                         P.D. REPORTED 3 HOUSES
                                          FLOODED.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 7:30 PM CDT	Severe Thunderstorm Warning	JAN	Copiah	15 min
Jul 11, 7:58 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Jefferson	47 min
Jul 12, 1:56 PM CDT	Severe Thunderstorm Warning	JAN	Jasper	34 min
Jul 12, 2:04 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Lincoln	26 min
Jul 12, 2:29 PM CDT	Severe Thunderstorm Warning	JAN	Attala	46 min
Jul 12, 2:45 PM CDT	Severe Thunderstorm Warning	JAN	Copiah	45 min
Jul 12, 3:15 PM CDT	Severe Thunderstorm Warning	JAN	Leake	45 min
Jul 12, 3:24 PM CDT	Severe Thunderstorm Warning	JAN	Winston	36 min
Jul 12, 3:27 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Washington	33 min
Jul 12, 3:36 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson	39 min
Jul 12, 3:37 PM CDT	Severe Thunderstorm Warning	JAN	Neshoba	38 min
Jul 12, 3:42 PM CDT	Severe Thunderstorm Warning	JAN	Forrest, Lamar	33 min
Jul 12, 3:45 PM CDT	Severe Thunderstorm Warning	JAN	Scott	45 min
Jul 12, 3:48 PM CDT	Severe Thunderstorm Warning	JAN	Yazoo	27 min
Jul 12, 3:55 PM CDT	Severe Thunderstorm Warning	JAN	Rankin	35 min
Jul 12, 4:02 PM CDT	Severe Thunderstorm Warning	JAN	Simpson	43 min
Jul 12, 4:15 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson	45 min
Jul 12, 4:20 PM CDT	Severe Thunderstorm Warning	JAN	Lamar, Marion	40 min
Jul 12, 4:27 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne	48 min
Jul 12, 4:47 PM CDT	Severe Thunderstorm Warning	JAN	Warren	43 min
Jul 12, 5:15 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Copiah	30 min
Jul 12, 6:00 PM CDT	Severe Thunderstorm Warning	JAN	Adams	45 min
Jul 12, 6:07 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson	38 min
Jul 12, 6:45 PM CDT	Severe Thunderstorm Warning	JAN	Adams	30 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2001 Every severe thunderstorm warning in 2001

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.