Alert archive / Indiana / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 104, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Dec 11, 2021, 2:56 AM EST for 6 counties in Indiana. It was in force for 34 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
- Dec 11, 2021, 2:56 AM EST (07:56 UTC)
- Expired
- Dec 11, 2021, 3:30 AM EST
- In force
- 34 min
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Bartholomew County, IN, Brown County, IN, Johnson County, IN, Monroe County, IN, Morgan County, IN, Shelby County, IN
The radar
The Indianapolis radar (KIND), 64 km from the middle of the area, began a volume at 07:56 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 |
|---|---|---|---|
| Dec 10, 8:47 PM EST | Tornado Watch | SPC | 8 hr |
| Dec 11, 12:20 AM EST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 7.9 hours before the alert went out and 221 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
- 519 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 325 m²/s²
- 0-3 km storm-relative helicity
- 431 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
201
WUUS53 KIND 110756 RRA
SVRIND
INC005-013-081-105-109-145-110830-
/O.NEW.KIND.SV.W.0104.211211T0756Z-211211T0830Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Indianapolis IN
256 AM EST Sat Dec 11 2021
The National Weather Service in Indianapolis has issued a
* Severe Thunderstorm Warning for...
Southern Shelby County in central Indiana...
Central Monroe County in south central Indiana...
Southeastern Morgan County in central Indiana...
Southern Johnson County in central Indiana...
Brown County in south central Indiana...
Western Bartholomew County in central Indiana...
* Until 330 AM EST.
* At 256 AM EST, severe thunderstorms were located along a line
extending from 6 miles southeast of Martinsville to 7 miles south
of Bloomington, moving east at 60 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Severe thunderstorms will be near...
Morgantown, Beanblossom, Mahalasville and Helmsburg around 300 AM
EST.
Spearsville, Peoga, Charles Deam Wilderness and Unionville around
305 AM EST.
Princes Lakes, Trafalgar, Yellowwood Lake and Elkinsville around
310 AM EST.
Franklin, Nashville, Edinburgh, Stone Head and Story around 315 AM
EST.
Other locations in the path of these severe thunderstorms include
Gnaw Bone, Marietta, Shelbyville, Clifford and Taylorsville.
This includes the following highways...
Interstate 65 between mile markers 62 and 89.
Interstate 74 between mile markers 115 and 117.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 500 AM EST for central and
south central Indiana. A Tornado Watch also remains in effect until
600 AM EST for central Indiana.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3903 8668 3941 8639 3955 8569 3904 8599
3905 8628 3905 8632 3903 8632 3901 8668
TIME...MOT...LOC 0756Z 247DEG 53KT 3934 8635 3907 8656
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
NIELD1 follow-up statement
079
WWUS53 KIND 110809
SVSIND
Severe Weather Statement
National Weather Service Indianapolis IN
309 AM EST Sat Dec 11 2021
INC105-109-110819-
/O.CAN.KIND.SV.W.0104.000000T0000Z-211211T0830Z/
Monroe IN-Morgan IN-
309 AM EST Sat Dec 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MONROE AND
SOUTHEASTERN MORGAN COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 500 AM EST for central and
south central Indiana. A Tornado Watch also remains in effect until
600 AM EST for central Indiana.
LAT...LON 3905 8637 3923 8636 3934 8630 3934 8625
3944 8625 3955 8569 3904 8599
TIME...MOT...LOC 0809Z 246DEG 55KT 3944 8609 3917 8630
$$
INC005-013-081-145-110830-
/O.CON.KIND.SV.W.0104.000000T0000Z-211211T0830Z/
Shelby IN-Johnson IN-Brown IN-Bartholomew IN-
309 AM EST Sat Dec 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 AM EST
FOR SOUTHERN SHELBY...SOUTHERN JOHNSON...BROWN AND WESTERN
BARTHOLOMEW COUNTIES...
At 309 AM EST, severe thunderstorms were located along a line
extending from near Franklin to near Nashville, moving northeast at
65 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe storms will be near...
Franklin around 315 AM EST.
Other locations in the path of these severe thunderstorms include
Marietta, Peoga, Shelbyville, Edinburgh, Taylorsville, Flat Rock and
Clifford.
This includes the following highways...
Interstate 65 between mile markers 62 and 89.
Interstate 74 between mile markers 115 and 117.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 500 AM EST for central and
south central Indiana. A Tornado Watch also remains in effect until
600 AM EST for central Indiana.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3905 8637 3923 8636 3934 8630 3934 8625
3944 8625 3955 8569 3904 8599
TIME...MOT...LOC 0809Z 246DEG 55KT 3944 8609 3917 8630
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
NIELDThe office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 10, 8:30 PM EST | Special Weather Statement | IND | Daviess, Lawrence, Martin | 45 min |
| Dec 10, 9:22 PM EST | Special Weather Statement | IND | Jennings | 23 min |
| Dec 10, 9:34 PM EST | Special Weather Statement | IND | Brown | 26 min |
| Dec 10, 9:38 PM EST | Severe Thunderstorm Warning | IND | Bartholomew, Brown, Johnson, Shelby | 25 min |
| Dec 10, 11:14 PM EST | Special Weather Statement | IND | Hendricks, Johnson, Marion, Morgan, Shelby | 31 min |
| Dec 10, 11:32 PM EST | Severe Thunderstorm Warning | IND | Fountain, Vermillion, Warren | 28 min |
| Dec 10, 11:42 PM EST | Severe Thunderstorm Warning | IND | Daviess, Greene, Knox, Martin, Monroe, Owen | 33 min |
| Dec 10, 11:45 PM EST | Tornado Warning | IND | Fountain, Parke, Vermillion | 30 min |
| Dec 10, 11:55 PM EST | Severe Thunderstorm Warning | IND | Daviess, Greene, Knox, Sullivan | 35 min |
| Dec 10, 11:55 PM EST | Severe Thunderstorm Warning | IND | Fountain, Montgomery, Parke, Tippecanoe, Vermillion, Vigo and 1 more | 35 min |
| Dec 11, 12:10 AM EST | Tornado Warning | IND | Daviess, Greene, Knox, Sullivan | 22 min |
| Dec 11, 12:16 AM EST | Severe Thunderstorm Warning | IND | Carroll, Clinton, Montgomery, Parke, Putnam, Tippecanoe | 29 min |
| Dec 11, 12:36 AM EST | Severe Thunderstorm Warning | IND | Boone, Carroll, Clinton, Hamilton, Howard, Montgomery and 1 more | 24 min |
| Dec 11, 12:58 AM EST | Severe Thunderstorm Warning | IND | Boone, Clinton, Hamilton, Hendricks, Howard, Madison and 4 more | 32 min |
| Dec 11, 1:05 AM EST | Severe Thunderstorm Warning | IND | Parke, Vermillion, Vigo | 25 min |
| Dec 11, 1:18 AM EST | Severe Thunderstorm Warning | IND | Delaware, Hamilton, Henry, Madison, Tipton | 38 min |
| Dec 11, 1:28 AM EST | Severe Thunderstorm Warning | IND | Clay, Parke, Putnam, Vigo | 32 min |
| Dec 11, 1:44 AM EST | Areal Flood Advisory | IND | Boone, Clinton, Montgomery, Parke, Putnam, Vermillion | 4 hr |
| Dec 11, 1:49 AM EST | Severe Thunderstorm Warning | IND | Hendricks, Putnam | 26 min |
| Dec 11, 1:59 AM EST | Severe Thunderstorm Warning | IND | Hendricks, Putnam | 21 min |
| Dec 11, 2:08 AM EST | Special Weather Statement | IND | Daviess, Greene, Knox, Martin | 52 min |
| Dec 11, 2:15 AM EST | Severe Thunderstorm Warning | IND | Hamilton, Marion | 30 min |
| Dec 11, 2:35 AM EST | Severe Thunderstorm Warning | IND | Delaware, Henry, Madison | 25 min |
| Dec 11, 2:40 AM EST | Special Weather Statement | IND | Brown, Johnson, Monroe | 50 min |
| Dec 11, 2:56 AM EST | Severe Thunderstorm Warning | IND | Delaware, Randolph | 34 min |
| Dec 11, 3:31 AM EST | Areal Flood Advisory | IND | Boone, Delaware, Hamilton, Madison, Tipton | 3 hr |
| Dec 11, 3:39 AM EST | Special Weather Statement | IND | Rush | 36 min |
| Dec 11, 3:44 AM EST | Severe Thunderstorm Warning | IND | Rush | 16 min |
| Dec 11, 3:53 AM EST | Special Weather Statement | IND | Jennings | 37 min |
| Dec 11, 10:17 AM EST | Areal Flood Warning | IND | Rush | 23 hr |
| Dec 11, 11:49 AM EST | River Flood Warning | IND | Delaware, Randolph | 16 hr |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.