Alert archive / Indiana / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 22, NWS Northern Indiana
NWS Northern Indiana issued this severe thunderstorm warning at Jun 20, 2021, 7:07 PM EDT for 4 counties in Indiana. It was in force for 23 min. 2 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
- Jun 20, 2021, 7:07 PM EDT (23:07 UTC)
- Expired
- Jun 20, 2021, 7:30 PM EDT
- In force
- 23 min
- Issued by
- NWS Northern Indiana
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Elkhart County, IN, Kosciusko County, IN, Marshall County, IN, Saint Joseph County, IN
The radar
The Northern Indiana radar (KIWX), 38 km from the middle of the area, began a volume at 23:10 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 |
|---|---|---|---|
| Jun 20, 7:13 PM EDT | TSTM WND DMG | 2 Ne Elkhart, IN | MATURE PINE TREE AROUND 18 INCHES IN DIAMETER UPROOTED. RELAYED BY WSBT ON TWITTER. |
| Jun 20, 7:36 PM EDT | TSTM WND GST 52 | 2 Nw Benton, IN | ASOS STATION KGSH GOSHEN. |
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 |
|---|---|---|---|
| Jun 20, 6:06 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 11.1 hours before the alert went out and 248 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
- 46 J/kg
- Mixed-layer CIN
- -265 J/kg
- Mixed-layer LCL
- 737 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 157 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted.
164
WUUS53 KIWX 202307
SVRIWX
INC039-085-099-141-202330-
/O.NEW.KIWX.SV.W.0022.210620T2307Z-210620T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
707 PM EDT Sun Jun 20 2021
The National Weather Service in Northern Indiana has issued a
* Severe Thunderstorm Warning for...
Elkhart County in north central Indiana...
Southeastern St. Joseph County in north central Indiana...
Northwestern Kosciusko County in north central Indiana...
Northeastern Marshall County in north central Indiana...
* Until 730 PM EDT.
* At 706 PM EDT, severe thunderstorms were located along a line
extending from near Lakeville to near Bremen, moving northeast at
60 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Elkhart, Mishawaka, Goshen, Nappanee, Bremen, Syracuse, Dunlap,
Osceola, Wakarusa, Bristol, Milford, Lakeville, New Paris, Locke,
La Paz, Woodland, Jimtown, Southwest, Foraker and Gravelton.
This includes Interstate 80 in Indiana between mile markers 93 and
98.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4176 8586 4167 8580 4143 8575 4137 8634
4146 8634 4154 8635 4176 8589
TIME...MOT...LOC 2306Z 239DEG 53KT 4152 8620 4150 8618 4145 8621
HAIL...0.75IN
WIND...60MPH
$$
Brown1 follow-up statement
266
WWUS53 KIWX 202320
SVSIWX
Severe Weather Statement
National Weather Service Northern Indiana
720 PM EDT Sun Jun 20 2021
INC039-085-099-141-202330-
/O.EXP.KIWX.SV.W.0022.000000T0000Z-210620T2330Z/
Elkhart IN-St. Joseph IN-Kosciusko IN-Marshall IN-
720 PM EDT Sun Jun 20 2021
...THE SEVERE THUNDERSTORM WARNING FOR ELKHART...SOUTHEASTERN ST.
JOSEPH...NORTHWESTERN KOSCIUSKO AND NORTHEASTERN MARSHALL COUNTIES
WILL EXPIRE AT 730 PM EDT...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire. However heavy rain is still possible with
these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 100 AM EDT for
north central Indiana...and southwestern Michigan.
LAT...LON 4176 8586 4167 8580 4143 8575 4137 8634
4146 8634 4154 8635 4176 8589
TIME...MOT...LOC 2320Z 239DEG 53KT 4162 8599 4160 8597 4155 8600
$$
BrownThe office that day
Everything else NWS Northern Indiana issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 8:16 PM EDT | Severe Thunderstorm Warning | IWX | LaPorte, Saint Joseph | 44 min |
| Jun 19, 8:20 PM EDT | Severe Thunderstorm Warning | IWX | Elkhart, LaGrange, Saint Joseph | 40 min |
| Jun 19, 8:51 PM EDT | Areal Flood Advisory | IWX | Elkhart, LaGrange, Saint Joseph | 3 hr |
| Jun 19, 8:53 PM EDT | Severe Thunderstorm Warning | IWX | LaPorte, Marshall, Saint Joseph, Starke | 52 min |
| Jun 19, 9:14 PM EDT | Areal Flood Advisory | IWX | LaPorte, Saint Joseph, Starke | 3 hr |
| Jun 19, 9:21 PM EDT | Severe Thunderstorm Warning | IWX | Steuben | 39 min |
| Jun 19, 9:43 PM EDT | Severe Thunderstorm Warning | IWX | Marshall, Starke | 47 min |
| Jun 19, 10:30 PM EDT | Severe Thunderstorm Warning | IWX | Pulaski, Starke | 60 min |
| Jun 20, 4:49 AM EDT | Small Craft Advisory | IWX | 45 hr | |
| Jun 20, 5:12 AM EDT | Beach Hazards Statement | IWX | 49 hr | |
| Jun 20, 5:52 PM EDT | Severe Thunderstorm Warning | IWX | LaPorte, Marshall, Saint Joseph, Starke | 38 min |
| Jun 20, 5:57 PM EDT | Severe Thunderstorm Warning | IWX | LaPorte, Starke | 33 min |
| Jun 20, 6:39 PM EDT | Severe Thunderstorm Warning | IWX | Elkhart, Fulton, Kosciusko, Marshall | 51 min |
| Jun 20, 6:42 PM EDT | Severe Thunderstorm Warning | IWX | Elkhart, Kosciusko, Marshall, Saint Joseph | 26 min |
| Jun 20, 6:53 PM EDT | Severe Thunderstorm Warning | IWX | Marshall, Starke | 22 min |
| Jun 20, 7:19 PM EDT | Severe Thunderstorm Warning | IWX | Elkhart, LaGrange, Noble | 41 min |
| Jun 20, 7:47 PM EDT | Special Marine Warning | IWX | 28 min | |
| Jun 20, 7:49 PM EDT | Severe Thunderstorm Warning | IWX | Allen, DeKalb | 10 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.