Alert archive / Mississippi / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 514, NWS Jackson, MS

August 9, 2000Kemper County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Aug 9, 2000, 2:30 PM CDT for Kemper County, Mississippi. It was in force for 45 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Aug 9, 2000, 2:30 PM CDT (19:30 UTC)
Expired: Aug 9, 2000, 3:15 PM CDT
In force: 45 min
Issued by: NWS Jackson, MS
Area: Whole counties

County Kemper County, MS

What was reported inside it

Time	Report	Where	Remark
Aug 9, 3:05 PM CDT	Thunderstorm Wind	De Kalb, MS	Several trees were blown down.

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.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 7.5 hours before the alert went out and 143 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: 1420 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 842 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -43 m²/s²
0-3 km storm-relative helicity: 9 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 091931
SVRJAN
MSC069-092015-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
230 PM CDT WED AUG 9 2000

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  KEMPER COUNTY IN EAST CENTRAL MISSISSIPPI

* UNTIL 315 PM CDT

* AT 230 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A SEVERE THUNDERSTORM OVER WESTERN KEMPER COUNTY.  THE STORM WAS   
  NEARLY STATIONARY.

* THE SEVERE THUNDERSTORM WILL...
  REMAIN OVER RURAL KEMPER COUNTY 

DAMAGING WINDS CAN BE EXPECTED. GO TO A SAFE PLACE NOW AND REMAIN
PROTECTED UNTIL THE STORM HAS PASSED.

65

LAT...LON 3282 8872 32f88 8892 3265 8891 3258 8878

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 Aug 9, 12:20 PM CDT, 2 hours 10 minutes earlier.

Area forecast discussion, Aug 9, 12:20 PM CDT, 2 hours 10 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE JACKSON MS
1220 PM CDT WED AUG 9 2000

MOISTURE POOLING OVER SE/E ZONES PER MSAS WHICH MATCHES WELL WITH
GOES/8 PRECIPITABLE WATER ANALYSIS EARLIER THIS MORNING SHOWING 2.00
INCH PWAT VALUES OVER EASTERN THIRD OF THE FORECAST AREA. WEAK MID
LEVEL PERTURBATION MOVING UNDERNEATH STUBBORN RIDGE AXIS HELPING TO
GENERATE A MORE SCATTERED COVERAGE OF SHOWERS OVER THE E/SE ZONES.
CAPES NOT AS IMPRESSIVE TODAY (~2500 J/KG) AS COMPARED TO OVER 4000
J/KG YESTERDAY...BUT THIS AMPLE ENOUGH INSTABILITY FOR THUNDER. WITH
AFOREMENTIONED MOISTURE...LOCALLY HEAVY RAINFALL WILL BE POSSIBLE.
SLIGHTLY WARMER MID LEVEL TEMPS SHOULD KEEP MOST CONVECTION WELL
UNDER SEVERE LIMITS...ALBEIT AN ISOLATED SEVERE IS NOT OUT OF THE
QUESTION. WILL UPDATE E/SE ZONES MORE INTO CHANCE POP CATEGORY BUT
LEAVE TEMPS AS IS. REST OF ZONES LOOK FINE.

.JAN...
AR...HEAT ADVISORY SOUTHEAST= CORNER.
LA...HEAT ADVISORY MOST OF NORTHEASTERN ZONES.
MS...HEAT ADVISORY DELTA AND HIGHWAY 82 CORRIDOR.

/05

In the hours before

Special weather statement, Aug 9, 10:15 AM CDT, 4 hours 15 minutes before

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
100300-

AREA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
1015 AM CDT WED AUG 9 2000

HIGH PRESSURE IN THE LOWER LEVELS OF THE ATMOSPHERE HAS REFORMED
ALONG THE GULF COAST. AS RESULT...A WESTERLY LOW LEVEL FLOW HAS
SET UP OVER THE REGION WITH HIGHEST MOISTURE VALUES MAINLY OVER
EASTERN SECTIONS OF MISSISSIPPI INTO WEST ALABAMA. LOW LEVEL
FOCUSING MECHANISMS WILL BE ABSENT ACROSS THE REGION THROUGH TONIGHT
ALONG WITH SLIGHTLY WARMER AND DRIER AIR ALOFT. AS A RESULT...ONLY
WIDELY SCATTERED AFTERNOON AND EARLY EVENING THUNDERSTORMS ARE EXPECTED...
...MAINLY EAST OF THE INTERSTATE 55 CORRIDOR WHERE HIGHER MOISTURE
LEVELS WILL BE FOUND. SEVERE WEATHER IS NOT EXPECTED.

ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND EMERGENCY
MANAGEMENT PERSONNEL WILL NOT BE NEEDED THROUGH TONIGHT.

FOR MORE INFORMATION PLEASE VISIT OUR INT}ERNET WEB SITE AT
WWW.SRH.NOAA.GOV/JAN (ALL IN LOWER CASE LETTERS). THIS INCLUDES AN
EXPERIMENTAL GRAPHICAL HAZARDOUS WEATHER OUTLOOK.

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 2:36 PM CDT	Severe Thunderstorm Warning	JAN	Neshoba	39 min
Aug 9, 2:59 PM CDT	Severe Thunderstorm Warning	JAN	Lauderdale	46 min
Aug 9, 3:25 PM CDT	Severe Thunderstorm Warning	JAN	Neshoba	35 min
Aug 9, 3:50 PM CDT	Severe Thunderstorm Warning	JAN	Winston	40 min
Aug 9, 4:38 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Neshoba	37 min
Aug 9, 4:58 PM CDT	Severe Thunderstorm Warning	JAN	Scott	27 min
Aug 9, 5:03 PM CDT	Severe Thunderstorm Warning	JAN	Clarke	42 min
Aug 9, 5:24 PM CDT	Severe Thunderstorm Warning	JAN	Leake	36 min
Aug 9, 5:35 PM CDT	Severe Thunderstorm Warning	JAN	Clay, Lowndes	40 min
Aug 9, 5:42 PM CDT	Severe Thunderstorm Warning	JAN	Scott	33 min
Aug 9, 6:00 PM CDT	Severe Thunderstorm Warning	JAN	Leake	45 min
Aug 9, 6:15 PM CDT	Severe Thunderstorm Warning	JAN	Scott	45 min
Aug 9, 6:26 PM CDT	Severe Thunderstorm Warning	JAN	Madison, Rankin	59 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.