Alert archive / Mississippi / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 452, NWS Jackson, MS

July 20, 2000Franklin County, Lincoln County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jul 20, 2000, 7:14 PM CDT for Franklin County, Lincoln County, Mississippi. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 20, 2000, 7:14 PM CDT (00:14 UTC)
Expired: Jul 20, 2000, 8:00 PM CDT
In force: 46 min
Issued by: NWS Jackson, MS
Area: Whole counties

Counties Franklin County, MS, Lincoln County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 0.2 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: 3475 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 1414 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 84 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.

438 
WUUS54 KJAN 210018 COR
SVRJAN
MSC037-085-210100-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION TO LOCATION
NATIONAL WEATHER SERVICE JACKSON MS
716 PM CDT THU JUL 20 2000

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

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

* UNTIL 800 PM CDT

* AT 714 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  SEVERE THUNDERSTORMS 15 MILES WEST OF BROOKHAVEN OR 8 MILES        
  NORTHEAST OF BUDE...MOVING SOUTHEAST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  NEAR BROOKHAVEN AT 800 PM CDT

HAIL UP TO DIME SIZED...DAMAGING WINDS AND TORRENTIAL RAIN ARE EXPECTED 
WITH THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTER WHILE THE STORM 
PASSES.

62

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 20, 6:35 PM CDT, 39 minutes earlier.

Area forecast discussion, Jul 20, 6:35 PM CDT, 39 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE JACKSON MS
635 PM CDT THU JUL 20 2000

STORMS HAVE MOVED SE OUT OF THE WATCH AREA IN NE SECTIONS OF THE
CWFA WHICH INCLUDED NOXUBEE/WINSTON COUNTIES NORTH TO WEBSTER/CLAY AND
LOWNDES COUNTIES. LOW LEVELS BEHIND THE STORMS HAVE STABILIZED. SPS
BEING DRAWN UP RIGHT NOW TO REMOVE WATCH HEADLINE IN ZONES FOR THAT
AREA. OTHERWISE...BOUNDARY SEEN ON 88D MOVING SOUTH OF THE JACKSON
METRO WITH WIDELY SCATTERED STORMS DEVELOPING ALONG IT FROM WEST OF
NATCHEZ EAST TOWARDS LAUREL IN SE MISSISSIPPI. WILL GENERALLY HOLD EVENING
POPS SOUTH AND EAST OF THIS BOUNDARY AND REMOVE POPS NORTHWEST OF IT
FOR NOW. WILL UPDATE REST OF Z6ONES LATER THIS EVENING WHEN
CONVECTION WINDS DOWN.

.JAN...
AR...NONE.
LA...NONE.
MS...NONE.
05/

In the hours before

Special weather statement, Jul 20, 6:30 PM CDT, 44 minutes before

MSZ028>033-037>039-210000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
630 PM CDT THU JUL 20 2000

SEVERE THUNDERSTORM WATCH 600 HAS BEEN CANCELLED FOR THE FOLLOWING
COUNTIES IN NORTHEAST MISSISSIPPI.

THE COUNTIES CANCELLED ARE: MONTGOMERY...WEBSTER...CLAY...
LOWNDES...OKTIBBEHA...CHOCTAW...ATTALA...WINSTON...AND NOXUBEE.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 7:31 PM CDT	Severe Thunderstorm Warning	JAN	Jones	29 min
Jul 20, 10:02 PM CDT	Severe Thunderstorm Warning	JAN	Lamar	28 min
Jul 21, 1:35 PM CDT	Severe Thunderstorm Warning	JAN	Lincoln	25 min
Jul 21, 1:58 PM CDT	Severe Thunderstorm Warning	JAN	Marion	32 min
Jul 21, 2:23 PM CDT	Severe Thunderstorm Warning	JAN	Lawrence	37 min
Jul 21, 2:54 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson	36 min
Jul 21, 3:55 PM CDT	Severe Thunderstorm Warning	JAN	Forrest	35 min
Jul 21, 4:02 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Jefferson	28 min
Jul 21, 4:21 PM CDT	Severe Thunderstorm Warning	JAN	Lincoln	24 min
Jul 21, 4:30 PM CDT	Severe Thunderstorm Warning	JAN	Forrest	30 min
Jul 21, 4:36 PM CDT	Flash Flood Warning	JAN	Forrest	84 min
Jul 21, 4:53 PM CDT	Severe Thunderstorm Warning	JAN	Copiah	37 min
Jul 21, 5:29 PM CDT	Severe Thunderstorm Warning	JAN	Copiah	31 min
Jul 21, 5:58 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Simpson	47 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2000 Every severe thunderstorm warning in 2000

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.