Alert archive / Indiana / Tornado Warnings in 2012
Tornado Warning 23, NWS Indianapolis, IN
NWS Indianapolis, IN issued this tornado warning at Aug 9, 2012, 10:21 PM EDT for Johnson County, Shelby County, Indiana. It was in force for 26 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 9, 2012, 10:21 PM EDT (02:21 UTC)
- Expired
- Aug 9, 2012, 10:47 PM EDT
- In force
- 26 min
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
Counties Johnson County, IN, Shelby County, IN
The radar
The Indianapolis radar (KIND), 43 km from the middle of the area, began a volume at 02:24 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 9, 10:45 PM EDT | TSTM WND DMG | Shelbyville, IN | TREE ON CAR ON W BROADWAY STREET AND TREE ON HOUSE ON NORTH STREET. TIME ESTIMATED FROM RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 9, 8:40 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 2.4 hours before the alert went out and 176 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
- 339 J/kg
- Mixed-layer CIN
- -117 J/kg
- Mixed-layer LCL
- 841 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
123 WFUS53 KIND 100221 TORIND INC081-145-100300- /O.NEW.KIND.TO.W.0023.120810T0221Z-120810T0300Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 1021 PM EDT THU AUG 9 2012 THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A * TORNADO WARNING FOR... EAST CENTRAL JOHNSON COUNTY IN CENTRAL INDIANA... SOUTHERN SHELBY COUNTY IN CENTRAL INDIANA... * UNTIL 1100 PM EDT * AT 1020 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR FRANKLIN...OR 13 MILES WEST OF SHELBYVILLE...AND MOVING EAST AT 20 MPH. * LOCATIONS IMPACTED INCLUDE... SHELBYVILLE... BOGGSTOWN... MARIETTA... THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 88 AND 96. THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 111 AND 117. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW. TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW. && LAT...LON 3957 8567 3935 8576 3949 8609 3958 8605 TIME...MOT...LOC 0221Z 280DEG 17KT 3952 8602 $$ NIELD
3 follow-up statements
901 WWUS53 KIND 100229 SVSIND SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 1029 PM EDT THU AUG 9 2012 INC081-145-100300- /O.CON.KIND.TO.W.0023.000000T0000Z-120810T0300Z/ JOHNSON-SHELBY- 1029 PM EDT THU AUG 9 2012 ...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL JOHNSON AND SOUTHERN SHELBY COUNTIES UNTIL 1100 PM EDT... AT 1028 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 6 MILES NORTHEAST OF FRANKLIN...OR 10 MILES WEST OF SHELBYVILLE...MOVING EAST AT 30 MPH. LOCATIONS IMPACTED INCLUDE... SHELBYVILLE...BOGGSTOWN AND MARIETTA. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW. TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW. && LAT...LON 3950 8601 3958 8600 3957 8567 3935 8576 TIME...MOT...LOC 0229Z 270DEG 24KT 3953 8595 $$ NIELD
120 WWUS53 KIND 100235 SVSIND SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 1035 PM EDT THU AUG 9 2012 INC081-100245- /O.CAN.KIND.TO.W.0023.000000T0000Z-120810T0300Z/ JOHNSON- 1035 PM EDT THU AUG 9 2012 ...THE TORNADO WARNING FOR EAST CENTRAL JOHNSON COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 3935 8576 3948 8595 3958 8595 3957 8567 TIME...MOT...LOC 0235Z 270DEG 24KT 3953 8590 $$ INC145-100300- /O.CON.KIND.TO.W.0023.000000T0000Z-120810T0300Z/ SHELBY- 1035 PM EDT THU AUG 9 2012 ...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN SHELBY COUNTY UNTIL 1100 PM EDT... AT 1033 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 7 MILES WEST OF SHELBYVILLE...MOVING EAST AT 30 MPH. LOCATIONS IMPACTED INCLUDE... SHELBYVILLE AND MARIETTA. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW. TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW. && LAT...LON 3935 8576 3948 8595 3958 8595 3957 8567 TIME...MOT...LOC 0235Z 270DEG 24KT 3953 8590 $$ NIELD
523 WWUS53 KIND 100247 SVSIND SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 1047 PM EDT THU AUG 9 2012 INC145-100256- /O.CAN.KIND.TO.W.0023.000000T0000Z-120810T0300Z/ SHELBY- 1047 PM EDT THU AUG 9 2012 ...THE TORNADO WARNING FOR SOUTHERN SHELBY COUNTY IS CANCELLED... THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS BEEN CANCELLED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR THE AREA. ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 AM EDT. REMEMBER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SHELBY COUNTY AND PORTIONS OF SURROUNDING COUNTIES UNTIL 1100 PM EDT. LAT...LON 3935 8576 3948 8595 3958 8595 3957 8567 TIME...MOT...LOC 0246Z 270DEG 24KT 3953 8580 $$ NIELD
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 8:24 PM EDT | Severe Thunderstorm Warning | IND | Decatur, Rush | 36 min |
| Aug 9, 8:28 PM EDT | Severe Thunderstorm Warning | IND | Boone, Hendricks | 32 min |
| Aug 9, 8:30 PM EDT | Severe Thunderstorm Warning | IND | Carroll, Clinton, Tippecanoe | 30 min |
| Aug 9, 8:48 PM EDT | Severe Thunderstorm Warning | IND | Fountain, Tippecanoe, Warren | 42 min |
| Aug 9, 8:52 PM EDT | Severe Thunderstorm Warning | IND | Clay, Morgan, Owen, Parke, Putnam | 38 min |
| Aug 9, 8:55 PM EDT | Severe Thunderstorm Warning | IND | Hendricks, Marion | 35 min |
| Aug 9, 8:58 PM EDT | Severe Thunderstorm Warning | IND | Carroll, Howard | 47 min |
| Aug 9, 9:00 PM EDT | Severe Thunderstorm Warning | IND | Decatur, Rush | 14 min |
| Aug 9, 9:06 PM EDT | Severe Thunderstorm Warning | IND | Carroll, Clinton, Tippecanoe | 39 min |
| Aug 9, 9:26 PM EDT | Severe Thunderstorm Warning | IND | Fountain, Montgomery, Tippecanoe, Warren | 49 min |
| Aug 9, 9:28 PM EDT | Severe Thunderstorm Warning | IND | Hancock, Hendricks, Johnson, Marion, Morgan, Shelby | 47 min |
| Aug 9, 9:58 PM EDT | Severe Thunderstorm Warning | IND | Bartholomew, Brown, Johnson, Monroe, Morgan, Shelby | 62 min |
| Aug 9, 10:16 PM EDT | Severe Thunderstorm Warning | IND | Boone, Clinton, Montgomery, Tippecanoe | 29 min |
| Aug 9, 10:32 PM EDT | Severe Thunderstorm Warning | IND | Hancock, Rush, Shelby | 43 min |
| Aug 9, 10:53 PM EDT | Severe Thunderstorm Warning | IND | Bartholomew, Decatur, Rush, Shelby | 49 min |
Nearby
Tornado Warnings in Indiana, 2012Every tornado warning in 2012Tornadoes in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.