Alert archive / Indiana / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 97, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Dec 11, 2021, 1:18 AM EST for 5 counties in Indiana. It was in force for 38 min. 1 report 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
- Dec 11, 2021, 1:18 AM EST (06:18 UTC)
- Expired
- Dec 11, 2021, 1:56 AM EST
- In force
- 38 min
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Delaware County, IN, Hamilton County, IN, Henry County, IN, Madison County, IN, Tipton County, IN
The radar
The Indianapolis radar (KIND), 81 km from the middle of the area, began a volume at 06:19 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 |
|---|---|---|---|
| Dec 11, 1:30 AM EST | TSTM WND DMG | 1 Sse Summitville, IN | SEVERAL TREES AND SOME POWER POLES DOWN ACROSS MAINLY NORTHERN MADISON COUNTY. TIME ESTIMATED FROM RADAR. |
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 |
|---|---|---|---|
| Dec 11, 12:20 AM EST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 6.3 hours before the alert went out and 170 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.
479 WUUS53 KIND 110618 SVRIND INC035-057-065-095-159-110715- /O.NEW.KIND.SV.W.0097.211211T0618Z-211211T0715Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Indianapolis IN 118 AM EST Sat Dec 11 2021 The National Weather Service in Indianapolis has issued a * Severe Thunderstorm Warning for... Madison County in central Indiana... Delaware County in east central Indiana... Northern Henry County in east central Indiana... Northern Hamilton County in central Indiana... Southeastern Tipton County in central Indiana... * Until 215 AM EST. * At 118 AM EST, severe thunderstorms were located along a line extending from near Fairmount to near Georgetown, moving east at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Severe thunderstorms will be near... Alexandria, Summitville and Orestes around 125 AM EST. Gaston around 135 AM EST. Other locations in the path of these severe thunderstorms include Edgewood, Frankton, River Forest, Eaton, Woodlawn Heights, Country Club Heights, Anderson, Chesterfield, Albany, Daleville, Yorktown, Springport and Ball State University. This includes Interstate 69 between mile markers 222 and 252. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect for the warned area. Tornadoes can develop quickly from severe thunderstorms. Although a tornado is not immediately likely, if one is spotted, act quickly and move to a place of safety inside a sturdy structure such as a basement or small interior room. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4000 8521 4006 8617 4038 8589 4038 8522 TIME...MOT...LOC 0618Z 266DEG 38KT 4036 8573 4010 8603 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ NIELD
3 follow-up statements
236
WWUS53 KIND 110631
SVSIND
Severe Weather Statement
National Weather Service Indianapolis IN
131 AM EST Sat Dec 11 2021
INC159-110641-
/O.CAN.KIND.SV.W.0097.000000T0000Z-211211T0715Z/
Tipton IN-
131 AM EST Sat Dec 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN TIPTON COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 600 AM EST for central and
east central Indiana.
LAT...LON 4008 8602 4022 8589 4022 8586 4025 8586
4038 8574 4038 8522 4002 8522
TIME...MOT...LOC 0631Z 266DEG 38KT 4037 8556 4011 8586
$$
INC035-057-065-095-110715-
/O.CON.KIND.SV.W.0097.000000T0000Z-211211T0715Z/
Madison IN-Delaware IN-Henry IN-Hamilton IN-
131 AM EST Sat Dec 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM EST
FOR MADISON...DELAWARE...NORTHERN HENRY AND NORTHEASTERN HAMILTON
COUNTIES...
At 131 AM EST, severe thunderstorms were located along a line
extending from near Matthews to 9 miles west of Anderson, moving east
at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe storms will be near...
Summitville and Gaston around 135 AM EST.
Other locations in the path of these severe thunderstorms include
Frankton, Eaton, Anderson, Chesterfield, Albany, Daleville, Yorktown,
Springport, Ball State University, Muncie and Summit Lake State Park.
This includes Interstate 69 between mile markers 226 and 252.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4008 8602 4022 8589 4022 8586 4025 8586
4038 8574 4038 8522 4002 8522
TIME...MOT...LOC 0631Z 266DEG 38KT 4037 8556 4011 8586
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
NIELD856
WWUS53 KIND 110643
SVSIND
Severe Weather Statement
National Weather Service Indianapolis IN
143 AM EST Sat Dec 11 2021
INC057-110652-
/O.CAN.KIND.SV.W.0097.000000T0000Z-211211T0715Z/
Hamilton IN-
143 AM EST Sat Dec 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HAMILTON COUNTY
IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 600 AM EST for central and
east central Indiana.
LAT...LON 4002 8522 4009 8586 4013 8586 4038 8564
4038 8522
TIME...MOT...LOC 0642Z 266DEG 38KT 4038 8541 4012 8571
$$
INC035-065-095-110715-
/O.CON.KIND.SV.W.0097.000000T0000Z-211211T0715Z/
Madison IN-Delaware IN-Henry IN-
143 AM EST Sat Dec 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM EST
FOR CENTRAL MADISON...DELAWARE AND NORTHERN HENRY COUNTIES...
At 142 AM EST, severe thunderstorms were located along a line
extending from near Matthews to near Anderson, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe storms will be near...
Eaton around 150 AM EST.
Other locations in the path of these severe thunderstorms include
Albany, Yorktown, Springport, Ball State University, Muncie, Summit
Lake State Park, Selma, Blountsville and Prairie Creek Reservoir.
This includes Interstate 69 between mile markers 230 and 252.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4002 8522 4009 8586 4013 8586 4038 8564
4038 8522
TIME...MOT...LOC 0642Z 266DEG 38KT 4038 8541 4012 8571
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
NIELD852
WWUS53 KIND 110656
SVSIND
Severe Weather Statement
National Weather Service Indianapolis IN
156 AM EST Sat Dec 11 2021
INC035-065-095-110706-
/O.CAN.KIND.SV.W.0097.000000T0000Z-211211T0715Z/
Madison IN-Delaware IN-Henry IN-
156 AM EST Sat Dec 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MADISON...DELAWARE AND
NORTHERN HENRY COUNTIES IS CANCELLED...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled. However gusty winds and
heavy rain are still possible with these thunderstorms.
A Tornado Watch remains in effect until 600 AM EST for central and
east central Indiana.
LAT...LON 4002 8522 4009 8586 4013 8586 4038 8564
4038 8522
TIME...MOT...LOC 0654Z 266DEG 38KT 4039 8524 4013 8554
$$
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, 1:28 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, 2:56 AM EST | Severe Thunderstorm Warning | IND | Bartholomew, Brown, Johnson, Monroe, Morgan, Shelby | 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.