Alert archive / Mississippi / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 317, NWS Jackson, MS

May 2, 2000Neshoba County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at May 2, 2000, 7:40 PM CDT for Neshoba County, Mississippi. It was in force for 35 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: May 2, 2000, 7:40 PM CDT (00:40 UTC)
Expired: May 2, 2000, 8:15 PM CDT
In force: 35 min
Issued by: NWS Jackson, MS
Area: Whole counties

County Neshoba County, MS

What was reported inside it

Time	Report	Where	Remark
May 2, 7:40 PM CDT	Hail 0.75	Philadelphia, MS

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 00:00Z, 0.7 hours before the alert went out and 102 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: 99 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 1372 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 120 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

535 
WUUS54 KJAN 030040
SVRJAN
MSC099-030115-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
740 PM CDT TUE MAY 2 2000

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

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

* UNTIL 815 PM CDT

* AT 739 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER NESHOBA COUNTY...OR ABOUT 8 MILES EAST OF
  PHILADELPHIA...MOVING NORTHEAST AT 20 MPH.


SEVERE THUNDERSTORM WINDS CAN BE AS DESTRUCTIVE AS A TORNADO. FOR
YOUR SAFETY...GO TO A SAFE PLACE IMMEDIATELY.

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 May 2, 3:05 PM CDT, 4 hours 35 minutes earlier.

Area forecast discussion, May 2, 3:05 PM CDT, 4 hours 35 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
305 PM CDT TUE MAY 2 2000

MODELS IN GOOD AGREEMENT WITH SYNOPTIC PATTERN THROUGH THE PERIOD
WITH MID/UPPER LEVEL COLD CORE SLOWLY DRIFTING E ACROSS N TX AND
FILLING WITH TIME. MODELS DIFFER THOUGH ON THE MESOSCALE FEATURES
WHICH IS UNDERSTANDABLE SINCE THERE ARE NUMEROUS OUTFLOW BOUNDARIES
AND NO DEFINITIVE SURFACE COLD FRONT OR TROF. WITH ONLY WEAK SURFACE
BOUNDARIES AROUND THROUGH THE PERIOD...THINK CHANCE POPS SHOULD BEST
REPRESENT THE SITUATION THROUGH THU...WITH THE HIGHEST OVER THE W
SECTIONS CLOSER TO THE COLDER AIR ALOFT.

NO REAL CHANGE IN TEMPS EXPECTED. AFTERNOON MAXES WILL BE A LITTLE
TRICKY...GIVEN QUESTIONABLE SUNSHINE. WILL GO MORE WITH AVN MOS
TEMPS AS IT SEEMS TO KEEP CLOUDS AROUND MORESO OVER THE W THAN AREAS
E AS REFLECTED IN ITS HIGHER TEMPS E.

QPF DISCUSSION: CONFIDENCE IS QUITE LOW THIS 24 HR PERIOD AS MUCH
WILL BE DETERMINED BY MESOSCALE FORCING. DEEP CONVECTION CURRENTLY
GOING IN THE SOUTHEAST WILL BE EXITING BY 00Z AND SHOULD NOT AFFECT
QPF AMOUNTS. BEYOND THE SHORT TERM...GIVEN THAT MAIN UPPER SYSTEM
AND MOISTURE INFLUX WILL BE IN CLOSER PROXIMITY TO WESTERN PORTIONS
OF THE FORECAST AREA...WILL GO WITH HIGHER PLACEMENTS THERE AND MAKE
A GRADUAL TREND DOWNWARD OVER CNTRL AND EAST PORTIONS. FOR AMOUNTS
AND TIMING...WILL GO WITH ETA/AVN QPF BLEND.

IN THE EXTENDED...PATTERN STILL ABOUT THE SAME AS WEAKENING COLD
CORE REMAINS IN THE AREA AS ADVERTISED BY THE MRF/NOGAPS. WILL GO
ALONG WITH NCEP AND KEEP CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH
SUN.

JAN 64/79/64/80 4434
MEI 63/82/62/82 3323

.JAN...
MS...NONE.
8AR...NONE.
LA...NONE.
26/43

The office that day

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

Issued	Product	Office	Counties	Lasted
May 2, 8:35 PM CDT	Severe Thunderstorm Warning	JAN	Winston	25 min
May 2, 9:15 PM CDT	Severe Thunderstorm Warning	JAN	Clay	30 min
May 2, 10:45 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Yazoo	45 min
May 2, 11:32 PM CDT	Severe Thunderstorm Warning	JAN	Madison	28 min
May 3, 4:45 AM CDT	Severe Thunderstorm Warning	JAN	Holmes	45 min
May 3, 2:17 PM CDT	Severe Thunderstorm Warning	JAN	Copiah	28 min
May 3, 2:48 PM CDT	Severe Thunderstorm Warning	JAN	Rankin	42 min
May 3, 3:36 PM CDT	Severe Thunderstorm Warning	JAN	Hinds	39 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.