Alert archive / Indiana / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 239, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Sep 7, 2012, 8:41 PM EDT for Boone County, Hamilton County, Marion County, Indiana. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 7, 2012, 8:41 PM EDT (00:41 UTC)
- Expired
- Sep 7, 2012, 9:30 PM EDT
- In force
- 49 min
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Boone County, IN, Hamilton County, IN, Marion County, IN
The radar
The Indianapolis radar (KIND), 30 km from the middle of the area, began a volume at 00:42 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 7, 4:41 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.7 hours before the alert went out and 195 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
- 531 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 1512 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 195 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
291
WUUS53 KIND 080041
SVRIND
INC011-057-097-080130-
/O.NEW.KIND.SV.W.0239.120908T0041Z-120908T0130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
841 PM EDT FRI SEP 7 2012
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN BOONE COUNTY IN CENTRAL INDIANA...
SOUTHERN HAMILTON COUNTY IN CENTRAL INDIANA...
MARION COUNTY IN CENTRAL INDIANA...
* UNTIL 930 PM EDT
* AT 838 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED NEAR SPEEDWAY...OR 10 MILES WEST
OF INDIANAPOLIS...AND MOVING EAST AT 30 MPH.
* LOCATIONS IMPACTED INCLUDE...
INDIANAPOLIS...
SPEEDWAY...
ZIONSVILLE...
SOUTHPORT...
BEECH GROVE...
CARMEL...
FISHERS...
LAWRENCE...
EAGLE CREEK RESERVOIR...
WYNNEDALE...
SPRING HILL...
HOMECROFT...
MONUMENT CIRCLE...
ROCKY RIPPLE...
CROWS NEST...
NORTH CROWS NEST...
MERIDIAN HILLS...
INDIANA STATE FAIRGROUNDS...
WILLIAMS CREEK...
BROAD RIPPLE...
THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 102 AND 126.
THIS INCLUDES INTERSTATE 69 BETWEEN MILE MARKERS 0 AND 13.
THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 70 AND 93.
THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 71 AND 99.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 3994 8586 3992 8594 3987 8594 3987 8595
3964 8596 3964 8632 3999 8631 4000 8586
TIME...MOT...LOC 0041Z 254DEG 27KT 3978 8630
WIND...HAIL 60MPH <.75IN
$$
KOCH2 follow-up statements
791
WWUS53 KIND 080057
SVSIND
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
857 PM EDT FRI SEP 7 2012
INC011-057-097-080130-
/O.CON.KIND.SV.W.0239.000000T0000Z-120908T0130Z/
BOONE-HAMILTON-MARION-
857 PM EDT FRI SEP 7 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
BOONE...SOUTHERN HAMILTON AND MARION COUNTIES UNTIL 930 PM EDT...
AT 852 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM FISHERS TO MOORESVILLE...MOVING EAST AT 30 MPH.
LOCATIONS IMPACTED INCLUDE...
INDIANAPOLIS...FISHERS...SOUTHPORT...LAWRENCE...BEECH GROVE...
MONUMENT CIRCLE...CASTLETON...GEIST RESERVOIR...HOMECROFT AND
WARREN PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 3994 8586 3992 8594 3987 8594 3987 8595
3964 8596 3964 8632 3999 8631 4000 8586
TIME...MOT...LOC 0057Z 254DEG 27KT 3999 8601 3967 8626
WIND...HAIL 60MPH <.75IN
$$
KOCH455
WWUS53 KIND 080116
SVSIND
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
916 PM EDT FRI SEP 7 2012
INC011-057-097-080130-
/O.CON.KIND.SV.W.0239.000000T0000Z-120908T0130Z/
BOONE-HAMILTON-MARION-
916 PM EDT FRI SEP 7 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
BOONE...SOUTHERN HAMILTON AND MARION COUNTIES UNTIL 930 PM EDT...
AT 915 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 9 MILES SOUTHWEST OF ANDERSON TO SOUTHPORT...MOVING EAST AT 30
MPH.
LOCATIONS IMPACTED INCLUDE...
BEECH GROVE...SOUTHPORT AND HOMECROFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 3994 8586 3992 8594 3987 8594 3987 8595
3964 8596 3964 8632 3999 8631 4000 8586
TIME...MOT...LOC 0116Z 254DEG 27KT 4002 8583 3966 8618
WIND...HAIL 60MPH <.75IN
$$
KOCHThe office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 8:26 PM EDT | Severe Thunderstorm Warning | IND | Clay, Greene, Knox, Sullivan, Vigo | 49 min |
| Sep 7, 9:17 PM EDT | Areal Flood Advisory | IND | Boone, Hamilton, Hancock, Johnson, Marion, Morgan | 3 hr |
| Sep 7, 9:45 PM EDT | Severe Thunderstorm Warning | IND | Decatur, Johnson, Rush, Shelby | 45 min |
| Sep 7, 10:32 PM EDT | Areal Flood Advisory | IND | Daviess, Knox, Lawrence, Martin | 3 hr |
| Sep 7, 10:39 PM EDT | Areal Flood Advisory | IND | Shelby | 3 hr |
| Sep 7, 10:48 PM EDT | Tornado Warning | IND | Bartholomew, Decatur, Jennings | 13 min |
| Sep 7, 11:04 PM EDT | Severe Thunderstorm Warning | IND | Jackson, Jennings | 41 min |
| Sep 8, 12:29 AM EDT | Areal Flood Advisory | IND | Marion | 3 hr |
| Sep 8, 3:36 AM EDT | Areal Flood Advisory | IND | Marion, Morgan | 4 hr |
| Sep 8, 7:08 AM EDT | Areal Flood Advisory | IND | Marion, Morgan | 4 hr |
Nearby
Severe Thunderstorm Warnings in Indiana, 2012Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.