Alert archive / Indiana / Tornado Watches in 2006
Tornado Watch 67
The Storm Prediction Center issued this tornado watch at Mar 11, 2006, 11:10 PM CST for Edwards County, Wabash County, White County, Illinois; 8 counties in Indiana. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 11, 2006, 11:10 PM CST (05:10 UTC)
- Expired
- Mar 12, 2006, 1:14 AM CST
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
Counties Edwards County, IL, Wabash County, IL, White County, IL, Daviess County, IN, Gibson County, IN, Knox County, IN, Pike County, IN, Posey County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN
The radar
The Evansville,IN radar (KVWX), 40 km from the middle of the area, began a volume at 05:15 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
3 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 11, 11:41 PM CST | Tornado Warning | PAH | Edwards, Wabash | 64 min |
| Mar 12, 12:38 AM CST | Tornado Warning | IND | Knox | 54 min |
| Mar 12, 12:43 AM CST | Flash Flood Warning | PAH | Edwards, Jefferson, Perry, Wabash, Wayne | 6 hr |
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, 5.2 hours before the alert went out and 188 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
- 789 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 708 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 201 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 120509
SEL7
SPC WW 120509
ILZ000-INZ000-121000-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 67
NWS STORM PREDICTION CENTER NORMAN OK
1110 PM CST SAT MAR 11 2006
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
EAST CENTRAL ILLINOIS
SOUTHWEST INDIANA
EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 1110 PM
UNTIL 400 AM CST.
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 APPROXIMATELY ALONG AND 35 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 70 MILES WEST NORTHWEST OF
EVANSVILLE INDIANA TO 35 MILES NORTHEAST OF EVANSVILLE INDIANA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU7).
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 64...WW 65...WW 66...
DISCUSSION...CLUSTER OF TORNADIC SUPERCELLS OVER SOUTH-CENTRAL IL
WILL CONTINUE TO TRACK EASTWARD INTO PARTS OF SOUTHWEST IND. STORMS
ARE REMAINING IN LOW LEVEL BAROCLINIC ZONE...WHERE ENHANCED SHEAR IS
AIDING TORNADO THREAT.
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 25035.
...HARTSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 11, 6:39 PM CST | Mesoscale Discussion | SPC | Bond, Calhoun, Champaign, Christian, Clinton, DeWitt and 34 more | 66 min |
| Mar 11, 6:49 PM CST | Tornado Watch | SPC | Bond, Clinton, Fayette, Madison, Marion, Monroe and 3 more | 7 hr |
| Mar 11, 8:06 PM CST | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clay, Coles and 21 more | 84 min |
| Mar 11, 9:11 PM CST | Mesoscale Discussion | SPC | Clark, Clay, Coles, Crawford, Cumberland, Edgar and 18 more | 94 min |
| Mar 11, 9:55 PM CST | Tornado Watch | SPC | Franklin, Hamilton, Jackson, Jefferson, Perry, Wayne and 1 more | 3 hr |
| Mar 11, 10:50 PM CST | Mesoscale Discussion | SPC | Wabash | 55 min |
| Mar 11, 11:13 PM CST | Mesoscale Discussion | SPC | Franklin, Jackson, Jefferson, Monroe, Perry, Randolph and 4 more | 92 min |
| Mar 12, 1:07 AM CST | Tornado Watch | SPC | Alexander, Clay, Clinton, Edwards, Franklin, Gallatin and 22 more | 7 hr |
| Mar 12, 3:39 AM CST | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 16 more | 96 min |
| Mar 12, 10:02 AM CST | Severe Thunderstorm Watch | SPC | Adams, Brown, Calhoun, Pike | 110 min |
| Mar 12, 11:17 AM CST | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Champaign, Christian and 28 more | 88 min |
| Mar 12, 11:49 AM CST | Tornado Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 30 more | 10 hr |
| Mar 12, 1:02 PM CST | Mesoscale Discussion | SPC | Edwards, Gallatin, Hamilton, Hardin, Johnson, Pope and 5 more | 88 min |
| Mar 12, 2:33 PM CST | Mesoscale Discussion | SPC | Bureau, Carroll, DeKalb, Grundy, Henderson, Henry and 13 more | 87 min |
| Mar 12, 3:02 PM CST | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Greene, Jersey, Macoupin and 6 more | 88 min |
| Mar 12, 4:22 PM CST | Mesoscale Discussion | SPC | Bureau, Carroll, DeKalb, DuPage, Grundy, Henderson and 18 more | 53 min |
| Mar 12, 4:49 PM CST | Tornado Watch | SPC | Bureau, Ford, Grundy, Henderson, Henry, Iroquois and 11 more | 5 hr |
| Mar 12, 5:06 PM CST | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 26 more | 84 min |
| Mar 12, 6:54 AM CST | Mesoscale Discussion | SPC | Perry, Spencer | 96 min |
| Mar 12, 5:54 PM CST | Mesoscale Discussion | SPC | Allen, DeKalb, Elkhart, Fulton, Huntington, Kosciusko and 10 more | 96 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.