Alert archive / Indiana / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 83, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 1, 2012, 10:16 PM EDT for 4 counties in Indiana. It was in force for 29 min. 15 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
- Apr 1, 2012, 10:16 PM EDT (02:16 UTC)
- Expired
- Apr 1, 2012, 10:45 PM EDT
- In force
- 29 min
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Hamilton County, IN, Hancock County, IN, Marion County, IN, Shelby County, IN
The radar
The Indianapolis radar (KIND), 34 km from the middle of the area, began a volume at 02:15 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 1, 10:20 PM EDT | HAIL 0.88 | 4 Ese Greenfield, IN | |
| Apr 1, 10:23 PM EDT | HAIL 1 | 1 E Carmel, IN | |
| Apr 1, 10:25 PM EDT | HAIL 1.5 | 2 E Greenfield, IN | |
| Apr 1, 10:25 PM EDT | HAIL 1.5 | 2 S Castleton, IN | |
| Apr 1, 10:30 PM EDT | HAIL 2 | Lawrence, IN | |
| Apr 1, 10:31 PM EDT | HAIL 0.88 | Castleton, IN | |
| Apr 1, 10:35 PM EDT | HAIL 1.5 | Lawrence, IN | |
| Apr 1, 10:39 PM EDT | HAIL 1 | 1 S Lawrence, IN | |
| Apr 1, 10:40 PM EDT | HAIL 1 | 1 Nw Cumberland, IN | |
| Apr 1, 10:40 PM EDT | HAIL 1.25 | 3 W Cumberland, IN | |
| Apr 1, 10:40 PM EDT | HAIL 1.75 | Cumberland, IN | |
| Apr 1, 10:43 PM EDT | HAIL 1 | 2 Nnw Cumberland, IN | |
| Apr 1, 10:48 PM EDT | HAIL 1 | 10 E Indianapolis, IN | HAIL WAS COVERING GROUND TO A ONE QUARTER INCH DEPTH |
| Apr 1, 10:50 PM EDT | HAIL 1.75 | New Palestine, IN | |
| Apr 1, 10:52 PM EDT | HAIL 1.5 | New Palestine, IN |
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 |
|---|---|---|---|
| Apr 1, 10:03 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 2.3 hours before the alert went out and 187 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
- 663 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 943 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 267 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 6.4
The text
As transmitted, in the capitals the NWS used until 2016.
140 WUUS53 KIND 020216 SVRIND INC057-059-097-145-020245- /O.NEW.KIND.SV.W.0083.120402T0216Z-120402T0245Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 1016 PM EDT SUN APR 1 2012 THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN HAMILTON COUNTY IN CENTRAL INDIANA... WESTERN HANCOCK COUNTY IN CENTRAL INDIANA... NORTHEASTERN MARION COUNTY IN CENTRAL INDIANA... NORTHWESTERN SHELBY COUNTY IN CENTRAL INDIANA... * UNTIL 1045 PM EDT * AT 1015 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR CARMEL...OR 13 MILES NORTH OF INDIANAPOLIS...AND MOVING SOUTHEAST AT 30 MPH. * LOCATIONS IMPACTED INCLUDE... FISHERS... LAWRENCE... GREENFIELD... MERIDIAN HILLS... BROAD RIPPLE... CASTLETON... GEIST RESERVOIR... MCCORDSVILLE... WARREN PARK... CUMBERLAND... SPRING LAKE... NEW PALESTINE... THIS INCLUDES INTERSTATE 69 BETWEEN MILE MARKERS 0 AND 9. THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 87 AND 104. THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 96 AND 104. 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. && LAT...LON 3976 8569 3961 8591 3997 8624 4008 8605 TIME...MOT...LOC 0216Z 322DEG 27KT 3995 8607 WIND...HAIL <50MPH 1.00IN $$ AB/RYAN
2 follow-up statements
104 WWUS53 KIND 020229 SVSIND SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 1029 PM EDT SUN APR 1 2012 INC057-020237- /O.CAN.KIND.SV.W.0083.000000T0000Z-120402T0245Z/ HAMILTON- 1029 PM EDT SUN APR 1 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN HAMILTON COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS. LAT...LON 3961 8591 3992 8620 3993 8589 3976 8569 TIME...MOT...LOC 0227Z 322DEG 27KT 3988 8601 $$ INC059-097-145-020245- /O.CON.KIND.SV.W.0083.000000T0000Z-120402T0245Z/ HANCOCK-MARION-SHELBY- 1029 PM EDT SUN APR 1 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN HANCOCK...NORTHEASTERN MARION AND NORTHWESTERN SHELBY COUNTIES UNTIL 1045 PM EDT... AT 1025 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. THIS STORM WAS LOCATED NEAR LAWRENCE...OR 10 MILES NORTHEAST OF INDIANAPOLIS...MOVING SOUTHEAST AT 30 MPH. LOCATIONS IMPACTED INCLUDE... LAWRENCE...GREENFIELD...MCCORDSVILLE...WARREN PARK...CUMBERLAND... SPRING LAKE AND NEW PALESTINE. IN ADDITION...WIND GUSTS TO NEAR 35 MPH ARE POSSIBLE TO THE WEST OF THE STORM ACROSS THE EASTERN HALF OF MARION COUNTY. 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. THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS. && LAT...LON 3961 8591 3992 8620 3993 8589 3976 8569 TIME...MOT...LOC 0227Z 322DEG 27KT 3988 8601 WIND...HAIL <50MPH 1.50IN $$ RYAN
385 WWUS53 KIND 020240 SVSIND SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 1040 PM EDT SUN APR 1 2012 INC059-097-145-020245- /O.CON.KIND.SV.W.0083.000000T0000Z-120402T0245Z/ HANCOCK-MARION-SHELBY- 1040 PM EDT SUN APR 1 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN HANCOCK...EAST CENTRAL MARION AND NORTHWESTERN SHELBY COUNTIES UNTIL 1045 PM EDT... AT 1039 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. THIS STORM WAS LOCATED 5 MILES SOUTHEAST OF LAWRENCE...OR 11 MILES EAST OF INDIANAPOLIS...MOVING SOUTHEAST AT 30 MPH. LOCATIONS IMPACTED INCLUDE... GREENFIELD...SPRING LAKE AND NEW PALESTINE. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS. && LAT...LON 3983 8610 3990 8588 3976 8569 3961 8591 TIME...MOT...LOC 0240Z 322DEG 27KT 3980 8594 WIND...HAIL <50MPH 1.50IN $$ RYAN
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 9:28 PM EDT | Special Weather Statement | IND | Delaware | 47 min |
| Apr 1, 9:32 PM EDT | Special Weather Statement | IND | Hamilton | 43 min |
| Apr 1, 9:42 PM EDT | Severe Thunderstorm Warning | IND | Hamilton, Hancock, Henry, Madison | 33 min |
| Apr 1, 9:52 PM EDT | Severe Thunderstorm Warning | IND | Boone, Hamilton, Marion | 23 min |
| Apr 1, 10:14 PM EDT | Severe Thunderstorm Warning | IND | Hancock, Henry, Rush | 31 min |
| Apr 1, 10:44 PM EDT | Severe Thunderstorm Warning | IND | Rush | 31 min |
| Apr 1, 10:45 PM EDT | Severe Thunderstorm Warning | IND | Hancock, Marion, Shelby | 30 min |
| Apr 1, 11:09 PM EDT | Severe Thunderstorm Warning | IND | Decatur, Rush | 36 min |
| Apr 1, 11:14 PM EDT | Severe Thunderstorm Warning | IND | Bartholomew, Decatur, Shelby | 46 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.