Alert archive / Indiana / Tornado Watches in 2004
Tornado Watch 623
The Storm Prediction Center issued this tornado watch at Jul 13, 2004, 3:30 PM CDT for 29 counties in Illinois; 38 counties in Indiana. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 13, 2004, 3:30 PM CDT (20:30 UTC)
- Expired
- Jul 13, 2004, 10:00 PM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 67 counties
Bond County, IL, Champaign County, IL, Christian 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, Jasper County, IL, Lawrence County, IL, Logan County, IL, Macon County, IL, McLean County, IL, Montgomery County, IL, Moultrie County, IL, Peoria County, IL, Piatt County, IL, Richland County, IL, Sangamon County, IL, Shelby County, IL, Tazewell County, IL, Vermilion County, IL, Woodford County, IL, Bartholomew County, IN, Benton County, IN, Boone County, IN, Brown County, IN, Clark County, IN, Clay County, IN, Clinton County, IN, Daviess County, IN, Fountain County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Howard County, IN, Jackson County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Martin County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Orange County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Scott County, IN, Shelby County, IN, Sullivan County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN, Washington County, IN
The radar
The Lincoln radar (KILX), 112 km from the middle of the area, began a volume at 20:30 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
40 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 3:33 PM CDT | Tornado Warning | IND | Fountain, Vermillion, Warren | 57 min |
| Jul 13, 3:38 PM CDT | Tornado Warning | ILX | Vermilion | 52 min |
| Jul 13, 3:41 PM CDT | Tornado Warning | ILX | McLean | 49 min |
| Jul 13, 3:59 PM CDT | Tornado Warning | ILX | DeWitt, Piatt | 46 min |
| Jul 13, 4:02 PM CDT | Flash Flood Warning | ILX | McLean | 3 hr |
| Jul 13, 4:07 PM CDT | Severe Thunderstorm Warning | ILX | Edgar | 53 min |
| Jul 13, 4:08 PM CDT | Severe Thunderstorm Warning | ILX | Champaign | 67 min |
| Jul 13, 4:11 PM CDT | Severe Thunderstorm Warning | IND | Parke | 49 min |
| Jul 13, 4:19 PM CDT | Tornado Warning | ILX | Champaign | 41 min |
| Jul 13, 4:24 PM CDT | Flash Flood Warning | ILX | Champaign | 3 hr |
| Jul 13, 4:29 PM CDT | Severe Thunderstorm Warning | IND | Clay, Vigo | 31 min |
| Jul 13, 4:35 PM CDT | Tornado Warning | ILX | Douglas | 40 min |
| Jul 13, 4:42 PM CDT | Severe Thunderstorm Warning | ILX | Piatt | 33 min |
| Jul 13, 4:44 PM CDT | Severe Thunderstorm Warning | IND | Putnam | 46 min |
| Jul 13, 4:56 PM CDT | Severe Thunderstorm Warning | IND | Clay, Greene, Owen, Sullivan | 64 min |
| Jul 13, 5:00 PM CDT | Severe Thunderstorm Warning | ILX | Edgar | 60 min |
| Jul 13, 5:00 PM CDT | Severe Thunderstorm Warning | IND | Hendricks, Morgan | 60 min |
| Jul 13, 5:03 PM CDT | Tornado Warning | ILX | Coles | 42 min |
| Jul 13, 5:06 PM CDT | Severe Thunderstorm Warning | ILX | Macon | 54 min |
| Jul 13, 5:09 PM CDT | Tornado Warning | ILX | DeWitt | 51 min |
| Jul 13, 5:13 PM CDT | Severe Thunderstorm Warning | ILX | Piatt | 62 min |
| Jul 13, 5:16 PM CDT | Tornado Warning | IND | Hendricks, Morgan | 44 min |
| Jul 13, 5:18 PM CDT | Severe Thunderstorm Warning | IND | Brown, Monroe | 57 min |
| Jul 13, 5:23 PM CDT | Severe Thunderstorm Warning | ILX | Clark | 52 min |
| Jul 13, 5:29 PM CDT | Severe Thunderstorm Warning | ILX | Moultrie | 61 min |
| Jul 13, 5:30 PM CDT | Severe Thunderstorm Warning | IND | Johnson | 60 min |
| Jul 13, 5:42 PM CDT | Severe Thunderstorm Warning | IND | Jackson, Lawrence, Martin | 63 min |
| Jul 13, 5:43 PM CDT | Tornado Warning | ILX | Moultrie | 47 min |
| Jul 13, 5:48 PM CDT | Severe Thunderstorm Warning | IND | Daviess, Knox | 42 min |
| Jul 13, 5:50 PM CDT | Severe Thunderstorm Warning | ILX | Coles, Cumberland | 55 min |
| Jul 13, 5:51 PM CDT | Severe Thunderstorm Warning | IND | Bartholomew | 54 min |
| Jul 13, 5:52 PM CDT | Severe Thunderstorm Warning | ILX | Coles, Cumberland | 53 min |
| Jul 13, 6:06 PM CDT | Severe Thunderstorm Warning | LMK | Orange, Washington | 54 min |
| Jul 13, 6:11 PM CDT | Severe Thunderstorm Warning | ILX | Crawford, Lawrence | 64 min |
| Jul 13, 6:12 PM CDT | Severe Thunderstorm Warning | ILX | Crawford, Lawrence | 63 min |
| Jul 13, 6:21 PM CDT | Severe Thunderstorm Warning | ILX | Jasper | 54 min |
| Jul 13, 6:39 PM CDT | Severe Thunderstorm Warning | LMK | Jefferson, Scott | 51 min |
| Jul 13, 6:44 PM CDT | Severe Thunderstorm Warning | LMK | Clark, Floyd | 46 min |
| Jul 13, 7:07 PM CDT | Severe Thunderstorm Warning | ILX | Richland | 38 min |
| Jul 13, 7:14 PM CDT | Severe Thunderstorm Warning | ILX | Clay | 46 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 12:00Z, 8.5 hours before the alert went out and 53 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.
- Mixed-layer CAPE
- 1440 J/kg
- Mixed-layer CIN
- -200 J/kg
- Mixed-layer LCL
- 1045 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 132028
SEL3
SPC WW 132030
ILZ000-INZ000-140300-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 623
NWS STORM PREDICTION CENTER NORMAN OK
330 PM CDT TUE JUL 13 2004
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
CENTRAL ILLINOIS
CENTRAL AND SOUTHERN INDIANA
EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 330 PM UNTIL
1000 PM CDT.
TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS ALONG AND 70 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 5 MILES WEST NORTHWEST OF SPRINGFIELD
ILLINOIS TO 45 MILES EAST SOUTHEAST OF INDIANAPOLIS INDIANA.
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 619...WW 620...WW 621...WW
622...
DISCUSSION...INTENSE TORNADIC SUPERCELLS CENTRAL IL WILL CONTINUE TO
FEED ON THE EXTREMELY UNSTABLE AIR MASS FEEDING IN FROM THE W. WITH
THE APPROACH OF THE 50-60 KT MID LEVEL WIND MAX...SHEAR WILL BECOME
INCREASINGLY FAVORABLE FOR TORNADIC STORMS WHICH WILL INCLUDE VERY
LARGE HAIL AND DAMAGING WINDS
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 650.
MEAN STORM MOTION VECTOR 32030.
...HALES
405,0894 402,0853 382,0853 385,0894SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 10:32 AM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Ford, Grundy, Henry, Iroquois and 14 more | 118 min |
| Jul 13, 10:55 AM CDT | Tornado Watch | SPC | Boone, Bureau, Carroll, DeKalb, Ford, Fulton and 27 more | 6 hr |
| Jul 13, 1:39 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Ford, Fulton and 27 more | 66 min |
| Jul 13, 2:30 PM CDT | Mesoscale Discussion | SPC | Champaign, Clark, Coles, Crawford, Cumberland, Douglas and 6 more | 2 hr |
| Jul 13, 5:00 PM CDT | Mesoscale Discussion | SPC | Bond, Christian, Clay, Crawford, Cumberland, Edwards and 15 more | 2 hr |
| Jul 13, 5:50 PM CDT | Severe Thunderstorm Watch | SPC | Clay, Edwards, Gallatin, Hamilton, Hardin, Jefferson and 7 more | 6 hr |
Nearby
Tornado Watches in Indiana, 2004Tornado Watches in Illinois, 2004Every tornado watch in 2004
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.