Alert archive / Indiana / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 70, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Aug 12, 2021, 5:15 PM EDT for Clay County, Parke County, Indiana. It was in force for 15 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
- Aug 12, 2021, 5:15 PM EDT (21:15 UTC)
- Expired
- Aug 12, 2021, 5:30 PM EDT
- In force
- 15 min
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Clay County, IN, Parke County, IN
The radar
The Indianapolis radar (KIND), 74 km from the middle of the area, began a volume at 21:15 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.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 9.3 hours before the alert went out and 139 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
- 1191 J/kg
- Mixed-layer CIN
- -177 J/kg
- Mixed-layer LCL
- 1149 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 140 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.1
The text
As transmitted.
138
WUUS53 KIND 122115
SVRIND
INC021-121-122130-
/O.NEW.KIND.SV.W.0070.210812T2115Z-210812T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Indianapolis IN
515 PM EDT Thu Aug 12 2021
The National Weather Service in Indianapolis has issued a
* Severe Thunderstorm Warning for...
North central Clay County in west central Indiana...
Southeastern Parke County in west central Indiana...
* Until 530 PM EDT.
* At 515 PM EDT, a severe thunderstorm was located near Brazil, or 16
miles northeast of Terre Haute, moving east at 45 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will be near...
Knightsville and Harmony around 520 PM EDT.
Lena around 525 PM EDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3970 8720 3966 8701 3954 8701 3948 8703
3957 8720 3961 8720 3961 8725
TIME...MOT...LOC 2115Z 289DEG 38KT 3962 8714
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Puma2 follow-up statements
726
WWUS53 KIND 122121
SVSIND
Severe Weather Statement
National Weather Service Indianapolis IN
521 PM EDT Thu Aug 12 2021
INC021-121-122130-
/O.CON.KIND.SV.W.0070.000000T0000Z-210812T2130Z/
Clay IN-Parke IN-
521 PM EDT Thu Aug 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR NORTH CENTRAL CLAY AND SOUTHEASTERN PARKE COUNTIES...
At 520 PM EDT, a severe thunderstorm was located near Brazil, or 17
miles northeast of Terre Haute, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe storm will be near...
Knightsville and Harmony around 525 PM EDT.
Lena around 530 PM EDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3968 8718 3966 8701 3954 8701 3948 8703
3957 8720 3962 8720 3965 8718
TIME...MOT...LOC 2120Z 283DEG 27KT 3962 8711
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
PUMA542
WWUS53 KIND 122128
SVSIND
Severe Weather Statement
National Weather Service Indianapolis IN
528 PM EDT Thu Aug 12 2021
INC021-121-122138-
/O.EXP.KIND.SV.W.0070.000000T0000Z-210812T2130Z/
Clay IN-Parke IN-
528 PM EDT Thu Aug 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL CLAY AND
SOUTHEASTERN PARKE COUNTIES WILL EXPIRE AT 530 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with this thunderstorm.
LAT...LON 3968 8718 3966 8701 3954 8701 3948 8703
3957 8720 3962 8720 3965 8718
TIME...MOT...LOC 2128Z 276DEG 31KT 3963 8707
$$
PumaThe office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 3:29 AM EDT | Heat Advisory | IND | Bartholomew, Boone, Brown, Carroll, Clay, Clinton and 33 more | 16 hr |
| Aug 12, 7:12 AM EDT | Special Weather Statement | IND | Warren | 48 min |
| Aug 12, 7:35 AM EDT | Severe Thunderstorm Warning | IND | Carroll, Clinton, Tippecanoe, Warren | 40 min |
| Aug 12, 4:00 PM EDT | Severe Thunderstorm Warning | IND | Fountain, Vermillion, Warren | 30 min |
| Aug 12, 4:31 PM EDT | Special Weather Statement | IND | Vermillion | 29 min |
| Aug 12, 5:05 PM EDT | Special Weather Statement | IND | Vigo | 25 min |
| Aug 12, 6:06 PM EDT | Severe Thunderstorm Warning | IND | Clay, Greene, Sullivan | 24 min |
| Aug 12, 6:30 PM EDT | Severe Thunderstorm Warning | IND | Clay, Daviess, Greene, Knox, Owen, Sullivan | 45 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.