Alert archive / Indiana / Tornado Watches in 2000

Tornado Watch 278

May 12, 20006 counties in Illinois; 49 counties in Indiana; 10 counties in Ohio

The Storm Prediction Center issued this tornado watch at May 12, 2000, 6:30 PM CDT for 6 counties in Illinois; 49 counties in Indiana; 10 counties in Ohio. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 12, 2000, 6:30 PM CDT (23:30 UTC)
Expired
May 13, 2000, 12:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 65 counties

Clark County, IL, Clay County, IL, Crawford County, IL, Jasper County, IL, Lawrence County, IL, Richland County, IL, Adams County, IN, Allen County, IN, Blackford County, IN, Boone County, IN, Brown County, IN, Carroll County, IN, Cass County, IN, Clay County, IN, Clinton County, IN, Daviess County, IN, DeKalb County, IN, Delaware County, IN, Fountain County, IN, Grant County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Huntington County, IN, Jay County, IN, Johnson County, IN, Knox County, IN, Kosciusko County, IN, LaGrange County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Martin County, IN, Miami County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Noble County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Randolph County, IN, Shelby County, IN, Steuben County, IN, Sullivan County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Vigo County, IN, Wabash County, IN, Wells County, IN, Whitley County, IN, Defiance County, OH, Fulton County, OH, Henry County, OH, Lucas County, OH, Mercer County, OH, Paulding County, OH, Putnam County, OH, Van Wert County, OH, Williams County, OH, Wood County, OH

The radar

The Indianapolis radar (KIND), 34 km from the middle of the area, began a volume at 23:34 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 12, 7:03 PM CDTSevere Thunderstorm WarningIWXKosciusko57 min
May 12, 7:10 PM CDTSevere Thunderstorm WarningINDTippecanoe35 min
May 12, 7:17 PM CDTSevere Thunderstorm WarningINDFountain28 min
May 12, 7:18 PM CDTTornado WarningILXClay, Effingham57 min
May 12, 7:22 PM CDTSevere Thunderstorm WarningINDFountain, Vermillion38 min
May 12, 7:37 PM CDTSevere Thunderstorm WarningILXClark, Edgar68 min
May 12, 7:37 PM CDTSevere Thunderstorm WarningINDCarroll38 min
May 12, 7:40 PM CDTSevere Thunderstorm WarningINDClinton35 min
May 12, 7:48 PM CDTSevere Thunderstorm WarningINDMontgomery, Tippecanoe27 min
May 12, 7:56 PM CDTTornado WarningILXJasper49 min
May 12, 7:57 PM CDTSevere Thunderstorm WarningIWXKosciusko43 min
May 12, 8:06 PM CDTTornado WarningILXClay54 min
May 12, 8:16 PM CDTSevere Thunderstorm WarningINDClinton29 min
May 12, 8:24 PM CDTSevere Thunderstorm WarningINDParke, Vermillion, Vigo36 min
May 12, 8:24 PM CDTSevere Thunderstorm WarningINDClay36 min
May 12, 8:31 PM CDTSevere Thunderstorm WarningINDHoward, Tipton29 min
May 12, 8:37 PM CDTTornado WarningILXCrawford, Jasper53 min
May 12, 8:41 PM CDTSevere Thunderstorm WarningILXClark34 min
May 12, 8:55 PM CDTTornado WarningILXClay, Richland50 min
May 12, 9:00 PM CDTSevere Thunderstorm WarningINDSullivan, Vigo30 min
May 12, 9:06 PM CDTSevere Thunderstorm WarningINDClay, Putnam24 min
May 12, 9:18 PM CDTSevere Thunderstorm WarningINDClay, Greene27 min
May 12, 9:27 PM CDTSevere Thunderstorm WarningILXCrawford48 min
May 12, 9:43 PM CDTSevere Thunderstorm WarningILXRichland47 min
May 12, 9:57 PM CDTSevere Thunderstorm WarningILXLawrence63 min
May 12, 10:11 PM CDTSevere Thunderstorm WarningINDKnox34 min
May 12, 10:41 PM CDTSevere Thunderstorm WarningINDKnox19 min
May 12, 11:16 PM CDTSevere Thunderstorm WarningINDGreene, Lawrence, Monroe29 min

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.5 hours before the alert went out and 171 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-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2000-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2035 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2000-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 283 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
2035 J/kg
Mixed-layer CIN
-305 J/kg
Mixed-layer LCL
1023 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
283 m²/s²
0-3 km storm-relative helicity
282 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The text

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

655 
WWUS9 KMKC 122333
SEL8  

SEL8  
MKC WW 122320
ILZ000-INZ000-OHZ000-130500-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 278
STORM PREDICTION CENTER NORMAN OK
620 PM EST FRI MAY 12 2000

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

   SOUTHEAST ILLINOIS                           
   INDIANA                            
   NORTHWEST OHIO                               

EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 630 PM UNTIL
MIDNIGHT EST.

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

THE TORNADO WATCH AREA IS ALONG AND 60 STATUTE MILES EAST AND WEST
OF A LINE FROM 65 MILES SOUTH SOUTHWEST OF TERRE HAUTE INDIANA TO
30 MILES WEST NORTHWEST OF TOLEDO OHIO.

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 271...WW 272...WW
273...WW 274...WW 275...WW 277...

DISCUSSION...SEVERE THUNDERSTORMS ARE EXPECTED TO MOVE ACROSS THE
REGION THIS EVENING. STEEP LAPSE RATES...STRONG INSTABILITY...AND
MODERATE DEEP LAYER SHEAR WILL SUPPORT DAMAGING WINDS AND LARGE
HAIL...WITH SOME THREAT FOR TORNADOES BEFORE SQUALL LINE EVOLVES
LATE THIS EVENING.  


AVIATION...TORNADOES AND 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 26025.


...VESCIO

414,0831 383,0864 383,0885 414,0853

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 11, 10:30 PM CDTTornado WatchSPCBoone, Carroll, DeKalb, Jo Daviess, Lee, McHenry and 6 more6 hr
May 12, 2:00 PM CDTTornado WatchSPCCass, Champaign, Christian, Coles, Cook, Cumberland and 28 more6 hr
May 12, 4:30 PM CDTSevere Thunderstorm WatchSPCBond, Calhoun, Clinton, Effingham, Fayette, Jersey and 6 more6 hr

Nearby

Tornado Watches in Indiana, 2000Tornado Watches in Ohio, 2000Tornado Watches in Illinois, 2000Every tornado 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; radar from the NEXRAD Level II archive.