Alert archive / Mississippi / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 512, NWS Jackson, MS

August 3, 2000Holmes County, Yazoo County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Aug 3, 2000, 4:16 PM CDT for Holmes County, Yazoo County, Mississippi. It was in force for 29 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: Aug 3, 2000, 4:16 PM CDT (21:16 UTC)
Expired: Aug 3, 2000, 4:45 PM CDT
In force: 29 min
Issued by: NWS Jackson, MS
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Holmes County, MS, Yazoo County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.3 hours before the alert went out and 82 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: 848 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 977 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: 54 m²/s²
0-3 km storm-relative helicity: 78 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 032117
SVRJAN
MSC051-163-032145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
416 PM CDT THU AUG 3 2000

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HOLMES COUNTY IN CENTRAL MISSISSIPPI
  YAZOO COUNTY IN CENTRAL MISSISSIPPI

* UNTIL 445 PM CDT

* AT 416 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES WEST OF PICKENS...MOVING SOUTH AT 5 MPH.

* THE SEVERE THUNDERSTORM WILL...
  REMAIN OVER RURAL AREAS 

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

82

LAT...LON 3315 8979 3319 8985 3299 9007 3291 9013
          3282 9002 3294 8990 3307 8982 3309 8983
          3310 8981

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 3, 2:30 PM CDT, 1 hour 46 minutes earlier.

Area forecast discussion, Aug 3, 2:30 PM CDT, 1 hour 46 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
230 PM CDT THU AUG 3 2000

MID/UPPER LEVEL TROF/SHEAR AXIS STILL EVIDENT ON WATER VAPOR OVER
THE NW CWFA. ALSO NOTED ON IMAGERY IS A SHORTWAVE MOVING SOUTHEAST
OVER SOUTHERN IA AND NORTHERN MO. AT THE SURFACE...88D SHOWING
THUNDERSTORM ACTIVITY FIRING SOUTH AND EAST OF SHEAR AXIS. THE DEEPEST
MOISTURE REMAINS OVER THE SOUTHERN AND SOUTHEASTERN ZONES.

BOTH THE ETA AND AVN ARE QUITE SIMILAR WITH THEIR SOLUTIONS THIS
RUN. MID/UPPER LEVEL TROF IS FORECAST TO SLIDE EAST LATER IN THE PD
AS 500 MB HIGH PRESSURE RIDGE NOSES ITS WAY EAST OVER THE REGION.
SHORTWAVE OVER SOUTHERN IA AND NORTHERN MO IS FORECAST TO CONTINUE
ITS TREK SOUTH/SOUTHEAST AND IMPACT THE CWFA DURING THE MAX DAYTIME
HEATING HOURS TOMORROW. AFTER 06Z SATURDAY...CONDITIONS BEGIN TO DRY
AS SHEAR AXIS/TROF MOVES EAST AND HIGH PRESSURE BEGINS TO SETTLE OVER
THE REGION.

BEST COVERAGE OF PRECIPITATION SHOULD BE IN THE SOUTH AND SOUTHEAST
AGAIN TOMORROW...WHERE THE DEEPEST MOISTURE WILL CONTINUE TO RESIDE.
AVN AND MOS POPS ARE VERY SIMILAR...WITH THE HIGHEST POPS TO THE
SOUTH AND SOUTHEAST TAPERING OFF TO THE NORTHWEST. TEMPS ALSO LOOK
GOOD...AND WILL NOT DEVIATE MUCH...EXCEPT TO LOWER MAXS A TAD IN THE
SOUTH ZONES TO ACCOUNT FOR GREATEST CHANCES OF CLOUD COVER/PRECIP.

QPF DISCUSSION: DEEPEST MOISTURE WILL CONTINUE TO BE OVER THE SE HALF
OF THE FORECAST AREA WITH LESSER AMOUNTS IN THE MEAN OVER THE NW
HALF. WITH PERTURBATIONS INTERACTING WITH THE MOISTURE/BOUNDARIES/AND
DAYTIME HEATING...WILL GENERALLY TREND BASIN AMOUNTS FROM ZERO
EXTREME NW DUE TO LESS COVERAGE OF CONVECTION TO AROUND 0.25 S/SE
AREAS PER PRECIPITABLE WATER TRENDS OFF SOUNDINGS AND WATER VAPOR
ANALYSIS. CONFIDENCE IS LOW (ESPECIALLY AMOUNTS/COVERAGE)...BUT
NGM/HPC BLEND LOOKS THE WAY TO GO.

IN THE EXTENDED...AFTERNOON EVENING THUNDERSTORM PATTERN WITH MAX
TE8MPS SLOWLY WARMING.

JAN 070/091/071/93 3423
MEI 071/089/071/92 3523

.JAN...
AR...NONE.
LA...NONE.
MS...NONE.
32

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 3, 1:54 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Copiah	36 min
Aug 3, 2:01 PM CDT	Severe Thunderstorm Warning	JAN	Leake	29 min
Aug 3, 2:40 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne	35 min
Aug 3, 2:44 PM CDT	Severe Thunderstorm Warning	JAN	Covington	31 min
Aug 3, 2:55 PM CDT	Severe Thunderstorm Warning	JAN	Scott	35 min
Aug 3, 3:00 PM CDT	Severe Thunderstorm Warning	JAN	Warren	45 min
Aug 3, 3:18 PM CDT	Severe Thunderstorm Warning	JAN	Rankin	42 min
Aug 3, 3:26 PM CDT	Severe Thunderstorm Warning	JAN	Simpson	34 min
Aug 3, 3:37 PM CDT	Severe Thunderstorm Warning	JAN	Hinds	23 min
Aug 3, 4:02 PM CDT	Severe Thunderstorm Warning	JAN	Simpson	28 min
Aug 3, 4:08 PM CDT	Severe Thunderstorm Warning	JAN	Rankin	37 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.