Alert archive / Missouri / Tornado Watches in 2001

Tornado Watch 331

May 30, 200132 counties in Missouri

The Storm Prediction Center issued this tornado watch at May 30, 2001, 6:00 PM CDT for 32 counties in Missouri. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: May 30, 2001, 6:00 PM CDT (23:00 UTC)
Expired: May 30, 2001, 10:00 PM CDT
In force: 4 hr
Issued by: the Storm Prediction Center

All 32 counties

Audrain County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Cass County, MO, Cedar County, MO, Cole County, MO, Cooper County, MO, Dade County, MO, Dallas County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Laclede County, MO, Lafayette County, MO, Maries County, MO, Miller County, MO, Moniteau County, MO, Morgan County, MO, Osage County, MO, Pettis County, MO, Polk County, MO, Pulaski County, MO, Ray County, MO, Saline County, MO, St. Clair County, MO, Vernon County, MO

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
May 30, 6:18 PM CDT	Tornado Warning	EAX	Henry, Johnson	27 min
May 30, 6:34 PM CDT	Tornado Warning	EAX	Johnson, Pettis	41 min
May 30, 6:58 PM CDT	Tornado Warning	EAX	Ray	47 min
May 30, 7:14 PM CDT	Tornado Warning	EAX	Pettis	46 min
May 30, 7:33 PM CDT	Tornado Warning	EAX	Cooper	42 min
May 30, 7:55 PM CDT	Flash Flood Warning	SGF	St. Clair	3 hr
May 30, 8:16 PM CDT	Tornado Warning	SGF	Camden, Morgan	29 min

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.0 hours before the alert went out and 140 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: 6 J/kg
Mixed-layer CIN: -146 J/kg
Mixed-layer LCL: 756 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: -52 m²/s²
0-3 km storm-relative helicity: 31 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 
WWUS9 KMKC 302256
SEL1  

SEL1  
MKC WW 302251
KSZ000-MOZ000-310300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 331
STORM PREDICTION CENTER NORMAN OK
551 PM CDT WED MAY 30 2001

THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

   SOUTHEAST KANSAS                             
   WESTERN AND CENTRAL MISSOURI                           

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 600 PM UNTIL
1000 PM CDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 60 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 75 STATUTE MILES EAST AND WEST
OF A LINE FROM 80 MILES WEST SOUTHWEST OF FORT LEONARD WOOD
MISSOURI TO 55 MILES NORTHWEST OF COLUMBIA MISSOURI.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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 328...WW 329...WW 330...

DISCUSSION...SUPERCELLS EXPECTED TO CONTINUE FORMING IN REGION OF
MODERATE /40-45 KT/ DEEP LAYER WLY SHEAR ABOVE LOW LEVEL
CONVERGENCE ZONE ASSOCIATED WITH KC SURFACE LOW.  POTENTIAL WILL
EXIST FOR A FEW TORNADOES..ESPECIALLY AS STORMS ENCOUNTER HELICITY-
RICH LOW-LEVEL ENVIRONMENT ALONG WARM FRONT FROM NEAR MKC SEWD TO
S OF COU. 

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 50 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. 
MEAN STORM MOTION VECTOR 25025.


...CORFIDI

;392,0913 371,0920 371,0945 392,0942;

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 30, 12:30 AM CDT	Severe Thunderstorm Watch	SPC	Barry, Barton, Bates, Cedar, Dade, Henry and 6 more	5 hr

Nearby

Tornado Watches in Missouri, 2001 Every tornado watch in 2001

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.