Alert archive / Mississippi / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 40, NWS New Orleans, LA

June 8, 2002Harrison County, Jackson County, Mississippi

NWS New Orleans, LA issued this severe thunderstorm warning at Jun 8, 2002, 3:35 PM CDT for Harrison County, Jackson County, Mississippi. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 8, 2002, 3:35 PM CDT (20:35 UTC)
Expired: Jun 8, 2002, 4:30 PM CDT
In force: 55 min
Issued by: NWS New Orleans, LA
Area: Counties, with a storm outline in the text

Counties Harrison County, MS, Jackson County, MS

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.6 hours before the alert went out and 87 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: 857 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 1062 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -30 m²/s²
0-3 km storm-relative helicity: -5 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 KLIX 082035
SVRNEW
MSC047-059-082130-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED
NATIONAL WEATHER SERVICE NEW ORLEANS LA
335 PM CDT SAT JUN 8 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HARRISON COUNTY IN SOUTHERN MISSISSIPPI
  JACKSON COUNTY IN SOUTHERN MISSISSIPPI

* UNTIL 430 PM CDT

* AT 326 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A   
SEVERE THUNDERSTORM OVER JACKSON COUNTY...OR ABOUT 8 MILES   
NORTHEAST OF LATIMER...DRIFTING WEST 5 TO 10 MPH.

THIS IS A DANGEROUS STORM...STAY INDOORS AWAY FROM WINDOWS.

HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS AS THEY
MAY BE WASHED OUT.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE.

LAT...LON 3060 8896 3051 8889 3055 8876 3063 8879

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 New Orleans, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 8, 3:20 PM CDT, 15 minutes earlier.

Area forecast discussion, Jun 8, 3:20 PM CDT, 15 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA
300 PM CDT SAT JUNE 8 2002

LATEST SURFACE ANALYSIS CONTINUE TO SHOW A WEAKENING BOUNDARY FROM
SOUTH GEORGIA TO SOUTH MISSISSIPPI TO CENTRAL LOUISIANA. MSAS MAPS
DEPICTED THETA E VALUE DIFFERENCES ABOUT 15K ACROSS THE BOUNDARY.
SOUNDING REVEALED A SOUTHEASTERLY FLOW FROM THE SURFACE TO 725MB AND
A MODERATE NORTHWESTERLY FLOW FROM 550MB TO 100MB...LIGHT EAST TO
NORTH AROUND 700MB.

SHORT RANGE MODELS ARE IN AGREEMENT WITH INCREASING MID LAYER
MOISTURE OVER THE FORECAST AREA TONIGHT THROUGH MONDAY. WIND FLOW
FROM 800 TO 500MB WILL BECOME EAST TO NORTHEAST TUESDAY AND ADVECT
DRY AIR OVER THE FORECAST AREA. ANTICYCLONIC CIRCULATION OVER THE
CAROLINAS IS THE CAUSE OF THE EASTWARD DRIVEN DRY AIR IN THE MID
LAYERS OVER THE AREA. PRECIPITABLE WATER VALUES REMAIN ABOVE 1.9
INCHES THROUGH MONDAY. DRY AIR FROM THE EAST WILL DECREASE PW VALUES
TO NEAR 1.4 INCHES OVER THE MISSISSIPPI COAST ACCORDING TO AVN AND
AROUND 1 INCH ACCORDING ETA. WILL CONTINUE POPS FOR SUNDAY AS
IS...MID LAYERS WILL REMAIN JUICED WITH MOISTURE TIL MONDAY. WILL
TAPER POPS OFF SLIGHTLY AS DRY AIR DISPLACES MOIST AIR FROM EAST TO
WEST STARTING TUESDAY AND WE WILL CONTINUE THE DRIER POPS FOR THE
REST OF THE FORECAST AREA THROUGH THU. IN ADDITION...WILL HEDGE
TEMPS UP SLIGHTLY FOR WED AND THU. SYNOPTIC FEATURES CONTINUE TO
ADVERTISE THE UPPER LEVEL STORM OVER IDAHO WILL PUSH EAST OVER THE
UPPER MISSISSIPPI VALLEY AND GREAT LAKES THU AND EARLY FRI. THE
ASSOCIATED TROUGH/LOW IS EXPECTED TO DEEPEN OVER THE NORTHEAST CONUS
AND HPC 6 AND 7 DAY PROGS DRIVES THE ASSOCIATED SURFACE COLD FRONT
THROUGH THE FORECAST AREA LATE FRI. WILL INCREASE POPS BACK TO CLIMO
FRI AND SAT FOR NOW.

HERE ARE SOME NUMBERS TO PONDER...

MCB TT 072/087 071/087 072 18263
BTR TT 072/088 072/087 072 18263
MSY TT 075/089 074/087 072 18263
GPT TT 074/086 073/085 072 18263

.NEW...NONE
LA...NONE.
MS...NONE.

18

In the hours before

Special weather statement, Jun 8, 11:00 AM CDT, 4 hours 35 minutes before

LAZ034>040-046>050-056>070-MSZ068>071-077-080>082-091200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1100 AM CDT SAT JUN 8 2002

.SYNOPSIS...WEAK HIGH PRESSURE WILL BUILD OVER THE MID GULF SOUTH
THROUGH TONIGHT.

.THUNDERSTORMS...
WITH AN UNSTABLE MOIST AIRMASS IN PLACE...SCATTERED SHOWERS AND
THUNDERSTORMS ARE EXPECTED ACROSS SOUTH MISSISSIPPI AND SOUTHEAST
LOUISIANA THROUGH THE EVENING HOURS. DUE TO THE WEAK UPPER LEVEL
STEERING FLOW...SLOW-MOVING THUNDERSTORMS WILL PRODUCE VERY HEAVY
RAIN WITH ISOLATED RAINFALL AMOUNTS APPROACHING 2 INCHES. SEVERE
THUNDERSTORMS ARE NOT EXPECTED.

.ACTIONS...NONE AT THIS TIME.

FOR MORE INFORMATION...VISIT OUR WEB SITE AT WWW.SRH.NOAA.GOV/LIX
(ALL LOWER CASE).

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 8, 3:33 PM CDT	Severe Thunderstorm Warning	LIX	Jackson	57 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2002 Every severe thunderstorm warning in 2002

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.