Alert archive / Indiana / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 82, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Oct 11, 2021, 4:52 PM EDT for 4 counties in Indiana. It was in force for 23 min. 3 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
- Oct 11, 2021, 4:52 PM EDT (20:52 UTC)
- Expired
- Oct 11, 2021, 5:15 PM EDT
- In force
- 23 min
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Fountain County, IN, Montgomery County, IN, Parke County, IN, Vermillion County, IN
The radar
The Indianapolis radar (KIND), 73 km from the middle of the area, began a volume at 20:55 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 |
|---|---|---|---|
| Oct 11, 5:04 PM EDT | TSTM WND GST 54 | 1 Ese Rockville, IN | RECORDED FROM PERSONAL WEATHER STATION OF A SPOTTER, RELAYED BY BROADCAST MEDIA. |
| Oct 11, 5:04 PM EDT | TSTM WND GST 58 | 1 Ese Rockville, IN | CORRECTS PREVIOUS TSTM WND GST REPORT FROM 1 ESE ROCKVILLE. RECORDED FROM PERSONAL WEATHER STATION OF A SPOTTER, RELAYED BY BROADCAST MEDIA. |
| Oct 11, 5:21 PM EDT | HAIL 1 | 3 W New Market, IN | HAIL SLIGHTLY LARGER THAN THE SIZE OF QUARTERS WERE FALLING AT 400 WEST AND 600 SOUTH. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 8.9 hours before the alert went out and 131 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
- 287 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 867 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 206 m²/s²
- 0-3 km storm-relative helicity
- 230 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.3
The text
As transmitted.
505
WUUS53 KIND 112052
SVRIND
INC045-107-121-165-112115-
/O.NEW.KIND.SV.W.0082.211011T2052Z-211011T2115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Indianapolis IN
452 PM EDT Mon Oct 11 2021
The National Weather Service in Indianapolis has issued a
* Severe Thunderstorm Warning for...
Southeastern Fountain County in west central Indiana...
Parke County in west central Indiana...
Southeastern Vermillion County in west central Indiana...
Western Montgomery County in west central Indiana...
* Until 515 PM EDT.
* At 452 PM EDT, a severe thunderstorm was located near Rockville, or
17 miles north of Terre Haute, moving northeast at 60 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* This severe thunderstorm will be near...
Rockville and Bloomingdale around 500 PM EDT.
Marshall, Turkey Run State Park and Judson around 505 PM EDT.
Waveland around 510 PM EDT.
Other locations in the path of this severe thunderstorm include
Waynetown, Wallace, Alamo and Shades State Park.
This includes Interstate 74 between mile markers 21 and 39.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4021 8708 4021 8707 4007 8679 3987 8697
3987 8701 3983 8701 3961 8721 3961 8726
3969 8745
TIME...MOT...LOC 2052Z 212DEG 51KT 3971 8730
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
502 follow-up statements
499
WWUS53 KIND 112101
SVSIND
Severe Weather Statement
National Weather Service Indianapolis IN
501 PM EDT Mon Oct 11 2021
INC165-112111-
/O.CAN.KIND.SV.W.0082.000000T0000Z-211011T2115Z/
Vermillion IN-
501 PM EDT Mon Oct 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN VERMILLION COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4021 8708 4021 8707 4007 8679 3987 8697
3987 8701 3983 8701 3965 8717 3968 8724
3978 8738 3979 8737
TIME...MOT...LOC 2101Z 212DEG 51KT 3982 8721
$$
INC045-107-121-112115-
/O.CON.KIND.SV.W.0082.000000T0000Z-211011T2115Z/
Fountain IN-Parke IN-Montgomery IN-
501 PM EDT Mon Oct 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR SOUTHEASTERN FOUNTAIN...CENTRAL PARKE AND WESTERN MONTGOMERY
COUNTIES...
At 501 PM EDT, a severe thunderstorm was located near Rockville, or
22 miles southwest of Crawfordsville, moving northeast at 60 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
This severe storm will be near...
Waveland around 510 PM EDT.
Other locations in the path of this severe thunderstorm include
Wallace, Alamo, Shades State Park, Waynetown, Crawfordsville and
Wingate.
This includes Interstate 74 between mile markers 21 and 39.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
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.
&&
LAT...LON 4021 8708 4021 8707 4007 8679 3987 8697
3987 8701 3983 8701 3965 8717 3968 8724
3978 8738 3979 8737
TIME...MOT...LOC 2101Z 212DEG 51KT 3982 8721
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
50977
WWUS53 KIND 112107
SVSIND
Severe Weather Statement
National Weather Service Indianapolis IN
507 PM EDT Mon Oct 11 2021
INC045-107-121-112115-
/O.CON.KIND.SV.W.0082.000000T0000Z-211011T2115Z/
Fountain IN-Parke IN-Montgomery IN-
507 PM EDT Mon Oct 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR SOUTHEASTERN FOUNTAIN...NORTHERN PARKE AND WESTERN MONTGOMERY
COUNTIES...
At 507 PM EDT, a severe thunderstorm was located 9 miles northeast of
Rockville, or 16 miles southwest of Crawfordsville, moving northeast
at 60 mph.
HAZARD...60 mph wind gusts.
SOURCE...Broadcast media.
IMPACT...Expect damage to roofs, siding, and trees.
This severe storm will be near...
Wallace, Alamo and Shades State Park around 515 PM EDT.
Waynetown around 520 PM EDT.
Other locations in the path of this severe thunderstorm include
Crawfordsville and Wingate.
This includes Interstate 74 between mile markers 22 and 39.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 4021 8708 4021 8707 4007 8679 3987 8697
3987 8701 3983 8701 3971 8712 3973 8721
3982 8734
TIME...MOT...LOC 2107Z 212DEG 51KT 3990 8715
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
50The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 11, 4:32 PM EDT | Special Weather Statement | IND | Vigo | 28 min |
| Oct 11, 5:16 PM EDT | Special Weather Statement | IND | Montgomery | 29 min |
| Oct 11, 5:23 PM EDT | Severe Thunderstorm Warning | IND | Montgomery, Tippecanoe | 37 min |
| Oct 11, 5:25 PM EDT | Special Weather Statement | IND | Sullivan | 35 min |
| Oct 11, 5:44 PM EDT | Severe Thunderstorm Warning | IND | Carroll, Clinton, Tippecanoe | 31 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 2021Every severe thunderstorm warning in 2021
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.