Alert archive / Indiana / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 246, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Sep 21, 2012, 7:42 PM EDT for 4 counties in Indiana. It was in force for 33 min. 4 reports 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
- Sep 21, 2012, 7:42 PM EDT (23:42 UTC)
- Expired
- Sep 21, 2012, 8:15 PM EDT
- In force
- 33 min
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Hancock County, IN, Johnson County, IN, Marion County, IN, Shelby County, IN
The radar
The Indianapolis radar (KIND), 39 km from the middle of the area, began a volume at 23:44 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 |
|---|---|---|---|
| Sep 21, 7:44 PM EDT | HAIL 1.75 | 1 E Cumberland, IN | GOLF BALL HAIL REPORTED JUST EAST OF CUMBERLAND. |
| Sep 21, 7:46 PM EDT | HAIL 0.88 | New Palestine, IN | REPORT FROM FORMER NWS EMPLOYEE. |
| Sep 21, 7:51 PM EDT | HAIL 1 | 1 Ese Cumberland, IN | QUARTER SIZED HAIL REPORTED AT 100 S AND 700 W. |
| Sep 21, 7:56 PM EDT | HAIL 1.5 | 5 E New Palestine, IN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.7 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1240 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- -35 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
265 WUUS53 KIND 212342 SVRIND INC059-081-097-145-220015- /O.NEW.KIND.SV.W.0246.120921T2342Z-120922T0015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 742 PM EDT FRI SEP 21 2012 THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN HANCOCK COUNTY IN CENTRAL INDIANA... NORTHEASTERN JOHNSON COUNTY IN CENTRAL INDIANA... SOUTHEASTERN MARION COUNTY IN CENTRAL INDIANA... NORTHERN SHELBY COUNTY IN CENTRAL INDIANA... * UNTIL 815 PM EDT * AT 739 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 8 MILES SOUTHEAST OF LAWRENCE TO GREENWOOD...AND MOVING EAST AT 45 MPH. * LOCATIONS IMPACTED INCLUDE... SHELBYVILLE... SPRING LAKE... BOGGSTOWN... FAIRLAND... MORRISTOWN... THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 97 AND 106. THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 86 AND 93. THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 93 AND 119. 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. THESE STORMS HAVE A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURES LEADING KILLERS. REMEMBER... IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 3975 8563 3948 8565 3959 8611 3982 8611 TIME...MOT...LOC 2342Z 292DEG 41KT 3974 8589 3958 8599 WIND...HAIL 60MPH 1.00IN $$ RYAN
1 follow-up statement
397 WWUS53 KIND 212350 SVSIND SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 750 PM EDT FRI SEP 21 2012 INC081-097-220000- /O.CAN.KIND.SV.W.0246.000000T0000Z-120922T0015Z/ JOHNSON-MARION- 750 PM EDT FRI SEP 21 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN JOHNSON AND SOUTHEASTERN MARION COUNTIES IS CANCELLED... THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 3948 8565 3959 8595 3980 8595 3975 8563 TIME...MOT...LOC 2350Z 292DEG 41KT 3975 8576 3959 8587 $$ INC059-145-220015- /O.CON.KIND.SV.W.0246.000000T0000Z-120922T0015Z/ HANCOCK-SHELBY- 750 PM EDT FRI SEP 21 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN HANCOCK AND NORTHERN SHELBY COUNTIES UNTIL 815 PM EDT... AT 748 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM GREENFIELD TO 8 MILES NORTHWEST OF SHELBYVILLE...MOVING EAST AT 45 MPH. LOCATIONS IMPACTED INCLUDE... MORRISTOWN. 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. PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS IF YOU ARE IN THE PATH OF THESE STORMS. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS. IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 3948 8565 3959 8595 3980 8595 3975 8563 TIME...MOT...LOC 2350Z 292DEG 41KT 3975 8576 3959 8587 WIND...HAIL 60MPH 1.00IN $$ RYAN
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 5:47 PM EDT | Special Weather Statement | IND | Hendricks | 28 min |
| Sep 21, 5:53 PM EDT | Special Weather Statement | IND | Fountain | 37 min |
| Sep 21, 6:21 PM EDT | Severe Thunderstorm Warning | IND | Boone, Fountain, Hendricks, Montgomery, Parke | 39 min |
| Sep 21, 6:45 PM EDT | Severe Thunderstorm Warning | IND | Boone, Hamilton, Hendricks, Marion, Montgomery, Putnam | 45 min |
| Sep 21, 7:07 PM EDT | Severe Thunderstorm Warning | IND | Hendricks, Johnson, Marion | 38 min |
| Sep 21, 7:30 PM EDT | Severe Thunderstorm Warning | IND | Hamilton, Hancock, Madison, Marion | 45 min |
| Sep 21, 7:32 PM EDT | Areal Flood Advisory | IND | Marion | 118 min |
| Sep 21, 7:58 PM EDT | Severe Thunderstorm Warning | IND | Hancock, Henry, Rush, Shelby | 47 min |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.