Alert archive / Indiana / Tornado Watches in 2006

Tornado Watch 85

March 13, 200625 counties in Illinois; 63 counties in Indiana

The Storm Prediction Center issued this tornado watch at Mar 13, 2006, 3:52 AM CST for 25 counties in Illinois; 63 counties in Indiana. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Mar 13, 2006, 3:52 AM CST (09:52 UTC)
Expired
Mar 13, 2006, 10:35 AM CST
In force
7 hr
Issued by
the Storm Prediction Center
All 88 counties

Bond County, IL, Champaign County, IL, Clark County, IL, Clay County, IL, Coles County, IL, Crawford County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Effingham County, IL, Fayette County, IL, Ford County, IL, Iroquois County, IL, Jasper County, IL, Kankakee County, IL, Lawrence County, IL, Macon County, IL, McLean County, IL, Montgomery County, IL, Moultrie County, IL, Piatt County, IL, Richland County, IL, Shelby County, IL, Vermilion County, IL, Adams County, IN, Allen County, IN, Bartholomew County, IN, Benton 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, Decatur County, IN, DeKalb County, IN, Delaware County, IN, Fayette County, IN, Fountain County, IN, Franklin County, IN, Fulton 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, Jackson County, IN, Jasper County, IN, Jay County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Kosciusko 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, Newton County, IN, Noble County, IN, Owen County, IN, Parke County, IN, Pulaski County, IN, Putnam County, IN, Randolph County, IN, Rush County, IN, Shelby County, IN, Sullivan County, IN, Tippecanoe County, IN, Tipton County, IN, Union County, IN, Vermillion County, IN, Vigo County, IN, Wabash County, IN, Warren County, IN, Wayne County, IN, Wells County, IN, White County, IN, Whitley County, IN

The radar

The Indianapolis radar (KIND), 111 km from the middle of the area, began a volume at 09:54 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

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

IssuedProductOfficeCountiesLasted
Mar 13, 4:00 AM CSTSevere Thunderstorm WarningILXMoultrie27 min
Mar 13, 4:30 AM CSTSevere Thunderstorm WarningIWXFulton, Kosciusko30 min
Mar 13, 5:54 AM CSTSevere Thunderstorm WarningILXClay, Richland42 min
Mar 13, 7:11 AM CSTSevere Thunderstorm WarningIWXPulaski23 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 9.9 hours before the alert went out and 93 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 00:00Z on 2006-03-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 730 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 00:00Z on 2006-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 286 square meters per square second.1939587897117Sfc1 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
730 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
565 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
286 m²/s²
0-3 km storm-relative helicity
322 m²/s²
Significant tornado parameter
1.5
Supercell composite
5.6

Open this sounding in Storm Lab

The text

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

000 
WWUS20 KWNS 130955
SEL5  
SPC WW 130955
ILZ000-INZ000-131700-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 85
NWS STORM PREDICTION CENTER NORMAN OK
350 AM CST MON MAR 13 2006

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

       EAST CENTRAL ILLINOIS
       NORTHERN AND CENTRAL INDIANA

EFFECTIVE THIS MONDAY MORNING FROM 350 AM UNTIL 1100 AM CST.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 25 MILES WEST OF DECATUR ILLINOIS
TO 45 MILES SOUTHEAST OF MUNCIE INDIANA.  FOR A COMPLETE DEPICTION
OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS
WOU5).

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...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 77. WATCH NUMBER 77 WILL NOT BE IN EFFECT AFTER 350
AM CST. CONTINUE...WW 78...WW 79...WW 80...WW 81...WW 82...WW
83...WW 84...

DISCUSSION...CONVECTIVE LINE WITH EMBEDDED BOWS WAS MOVING INTO EAST
CENTRAL IL AND WILL SHIFT EWD INTO NRN/CENTRAL IN DURING THE
MORNING. STRONG DEEP LAYER SHEAR REMAINS FAVORABLE FOR SUPERCELLS.
ALTHOUGH THE MAIN THREAT APPEARS TO BE DAMAGING WINDS AND SEVERE
HAIL...50-60 KT LOW LEVEL JET AND 1 KM SHEAR NEAR 50 KT INDICATES
TORNADOES ARE POSSIBLE.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 26030.


...IMY

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 12, 6:28 PM CSTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 17 more92 min
Mar 12, 7:15 PM CSTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Grundy and 24 more90 min
Mar 12, 7:28 PM CSTSevere Thunderstorm WatchSPCCarroll, Jo Daviess, Rock Island, Stephenson, Whiteside7 hr
Mar 12, 8:00 PM CSTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 47 more90 min
Mar 12, 8:42 PM CSTTornado WatchSPCAdams, Bond, Boone, Brown, Bureau, Calhoun and 58 more7 hr
Mar 12, 11:30 PM CSTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 41 more2 hr
Mar 12, 11:52 PM CSTMesoscale DiscussionSPCCarroll83 min
Mar 13, 12:35 AM CSTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 11 more85 min
Mar 13, 1:06 AM CSTTornado WatchSPCAlexander, Clinton, Edwards, Franklin, Gallatin, Hamilton and 19 more6 hr
Mar 13, 3:19 AM CSTMesoscale DiscussionSPCChampaign, Clark, Clay, Coles, Crawford, Cumberland and 9 more86 min
Mar 13, 6:08 AM CSTMesoscale DiscussionSPCAlexander, Edwards, Gallatin, Hamilton, Hardin, Johnson and 7 more97 min
Mar 12, 10:39 PM CSTMesoscale DiscussionSPCAllen, Carroll, Cass, Clinton, DeKalb, Elkhart and 18 more96 min
Mar 12, 11:23 PM CSTTornado WatchSPCAllen, Cass, DeKalb, Elkhart, Fulton, Huntington and 13 more7 hr
Mar 13, 6:56 AM CSTSevere Thunderstorm WatchSPCClark, Crawford, Dubois, Floyd, Gibson, Harrison and 9 more4 hr
Mar 13, 9:39 AM CSTMesoscale DiscussionSPCAdams, Allen, Blackford, Boone, Carroll, Cass and 28 more66 min
Mar 13, 9:44 AM CSTTornado WatchSPCAdams, Allen, DeKalb, Elkhart, Huntington, Kosciusko and 7 more5 hr
Mar 13, 10:22 AM CSTSevere Thunderstorm WatchSPCClark, Dearborn, Floyd, Harrison, Jefferson, Ohio and 3 more10 hr
Mar 13, 2:13 PM CSTMesoscale DiscussionSPCClark, Dearborn, Jefferson, Ohio, Ripley, Switzerland92 min

Nearby

Tornado Watches in Indiana, 2006Tornado Watches in Illinois, 2006Every tornado watch in 2006

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.