Alert archive / Mississippi / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 613

July 22, 200037 counties in Mississippi

The Storm Prediction Center issued this severe thunderstorm watch at Jul 22, 2000, 2:30 PM CDT for 37 counties in Mississippi. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Jul 22, 2000, 2:30 PM CDT (19:30 UTC)
Expired: Jul 22, 2000, 8:00 PM CDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 37 counties

Attala County, MS, Claiborne County, MS, Clarke County, MS, Copiah County, MS, Covington County, MS, Forrest County, MS, Franklin County, MS, Greene County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Kemper County, MS, Lamar County, MS, Lauderdale County, MS, Lawrence County, MS, Leake County, MS, Lincoln County, MS, Madison County, MS, Marion County, MS, Neshoba County, MS, Newton County, MS, Perry County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Smith County, MS, Walthall County, MS, Warren County, MS, Washington County, MS, Wayne County, MS, Yazoo County, MS

Warnings issued inside it

11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jul 22, 4:01 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Rankin	44 min
Jul 22, 4:35 PM CDT	Severe Thunderstorm Warning	JAN	Simpson	40 min
Jul 22, 5:15 PM CDT	Severe Thunderstorm Warning	JAN	Simpson	30 min
Jul 22, 5:28 PM CDT	Severe Thunderstorm Warning	LIX	Walthall	32 min
Jul 22, 5:36 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Smith	39 min
Jul 22, 6:05 PM CDT	Severe Thunderstorm Warning	JAN	Lamar	25 min
Jul 22, 6:16 PM CDT	Severe Thunderstorm Warning	JAN	Forrest	44 min
Jul 22, 6:32 PM CDT	Tornado Warning	JAN	Forrest	28 min
Jul 22, 6:55 PM CDT	Tornado Warning	MOB	Perry	65 min
Jul 22, 7:00 PM CDT	Severe Thunderstorm Warning	JAN	Forrest	30 min
Jul 22, 7:40 PM CDT	Tornado Warning	MOB	Greene	80 min

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 7.5 hours before the alert went out and 5 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: 541 J/kg
Mixed-layer CIN: -106 J/kg
Mixed-layer LCL: 1056 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: -2 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.

615 
WWUS9 KMKC 221913
SEL3  
MKC WW 221907
MSZ000-230100-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 613
STORM PREDICTION CENTER NORMAN OK
207 PM CDT SAT JUL 22 2000

THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

   CENTRAL AND SOUTHERN MISSISSIPPI                        

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 230 PM UNTIL 800
PM CDT.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 70 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 60 MILES WEST OF JACKSON MISSISSIPPI
TO 30 MILES SOUTH SOUTHEAST OF MERIDIAN MISSISSIPPI.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. 
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...  CONTINUE...WW 612...

DISCUSSION...LINE OF THUNDERSTORMS WILL RAPIDLY INTENSIFY AS THEY
MOVE INTO WESTERN MISSISSIPPI NEAR/ALONG AXIS OF VERY UNSTABLE AIR
MASS. COMBINATION OF CAPES ABOVE 4000 J/KG...ABUNDANT LOW LEVEL
MOISTURE AND DRY AIR INFLOW AT MID LEVELS WILL SUPPORT A FEW
DAMAGING MOIST DOWNBURSTS AND LARGE HAIL.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.  MEAN STORM
MOTION VECTOR 24035.


...ROGASH

331,0910 325,0883 305,0883 311,0910

Nearby

Severe Thunderstorm Watches in Mississippi, 2000 Every severe thunderstorm watch 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.