Alert archive / Ohio / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 98, NWS Wilmington, OH
NWS Wilmington, OH issued this severe thunderstorm warning at Aug 12, 2021, 7:44 PM EDT for Miami County, Ohio. It was in force for 31 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
- Aug 12, 2021, 7:44 PM EDT (23:44 UTC)
- Expired
- Aug 12, 2021, 8:15 PM EDT
- In force
- 31 min
- Issued by
- NWS Wilmington, OH
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Miami County, OH
The radar
The Cincinnati radar (KILN), 66 km from the middle of the area, began a volume at 23:44 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 |
|---|---|---|---|
| Aug 12, 7:45 PM EDT | TSTM WND DMG | 4 Wsw Troy, OH | MULTIPLE LARGE TREES DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.7 hours before the alert went out and 66 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
- 1817 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 946 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 96 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
035
WUUS51 KILN 122344
SVRILN
OHC109-130015-
/O.NEW.KILN.SV.W.0098.210812T2344Z-210813T0015Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wilmington OH
744 PM EDT Thu Aug 12 2021
The National Weather Service in Wilmington has issued a
* Severe Thunderstorm Warning for...
Southern Miami County in west central Ohio...
* Until 815 PM EDT.
* At 744 PM EDT, a severe thunderstorm was located near West Milton,
moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* Locations impacted include...
Troy, Tipp City, West Milton, Brown, Union, Casstown, Ludlow Falls,
Ginghamsburg, Haven View and Grayson.
This includes I-75 in Ohio between mile markers 66 and 74.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.
&&
LAT...LON 3991 8405 3992 8410 3992 8423 3993 8436
4003 8435 4006 8403
TIME...MOT...LOC 2344Z 274DEG 28KT 3998 8427
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hatzos2 follow-up statements
325
WWUS51 KILN 122351
SVSILN
Severe Weather Statement
National Weather Service Wilmington OH
751 PM EDT Thu Aug 12 2021
OHC109-130015-
/O.CON.KILN.SV.W.0098.000000T0000Z-210813T0015Z/
Miami OH-
751 PM EDT Thu Aug 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR SOUTHEASTERN MIAMI COUNTY...
At 750 PM EDT, a severe thunderstorm was located over Tipp City,
moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
Locations impacted include...
Troy, Tipp City, Brown, Union, Casstown, Ginghamsburg, Haven View and
Grayson.
This includes I-75 in Ohio between mile markers 66 and 74.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.
&&
LAT...LON 3991 8405 3992 8410 3992 8423 3993 8431
4004 8428 4006 8403
TIME...MOT...LOC 2350Z 267DEG 26KT 3998 8420
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hatzos028
WWUS51 KILN 130010
SVSILN
Severe Weather Statement
National Weather Service Wilmington OH
810 PM EDT Thu Aug 12 2021
OHC109-130019-
/O.EXP.KILN.SV.W.0098.000000T0000Z-210813T0015Z/
Miami OH-
810 PM EDT Thu Aug 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MIAMI COUNTY WILL
EXPIRE AT 815 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.
Please report previous wind damage or hail to the National Weather
Service by going to our website at weather.gov/iln and submitting
your report via social media.
LAT...LON 3991 8405 3992 8410 3992 8423 3993 8431
4004 8428 4006 8403
TIME...MOT...LOC 0009Z 274DEG 28KT 3997 8402
$$
HatzosThe office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 3:49 PM EDT | Special Weather Statement | ILN | Clark | 26 min |
| Aug 12, 4:03 PM EDT | Severe Thunderstorm Warning | ILN | Champaign, Clark, Madison | 42 min |
| Aug 12, 4:41 PM EDT | Severe Thunderstorm Warning | ILN | Clark, Madison | 49 min |
| Aug 12, 5:13 PM EDT | Special Weather Statement | ILN | Madison | 32 min |
| Aug 12, 5:28 PM EDT | Severe Thunderstorm Warning | ILN | Franklin, Madison, Pickaway | 47 min |
| Aug 12, 5:29 PM EDT | Special Weather Statement | ILN | Clark | 31 min |
| Aug 12, 5:58 PM EDT | Special Weather Statement | ILN | Madison | 32 min |
| Aug 12, 5:59 PM EDT | Special Weather Statement | ILN | Darke | 31 min |
| Aug 12, 6:03 PM EDT | Special Weather Statement | ILN | Licking | 27 min |
| Aug 12, 6:14 PM EDT | Special Weather Statement | ILN | Madison | 31 min |
| Aug 12, 6:29 PM EDT | Special Weather Statement | ILN | Licking | 31 min |
| Aug 12, 6:29 PM EDT | Special Weather Statement | ILN | Darke | 31 min |
| Aug 12, 6:50 PM EDT | Special Weather Statement | ILN | Champaign | 25 min |
| Aug 12, 6:54 PM EDT | Special Weather Statement | ILN | Licking | 36 min |
| Aug 12, 6:56 PM EDT | Special Weather Statement | ILN | Miami | 34 min |
| Aug 12, 6:57 PM EDT | Special Weather Statement | ILN | Madison | 33 min |
| Aug 12, 7:09 PM EDT | Special Weather Statement | ILN | Darke | 36 min |
| Aug 12, 7:18 PM EDT | Areal Flood Advisory | ILN | Clark, Franklin, Madison | 2 hr |
| Aug 12, 7:24 PM EDT | Special Weather Statement | ILN | Champaign | 36 min |
| Aug 12, 7:26 PM EDT | Special Weather Statement | ILN | Madison | 34 min |
| Aug 12, 7:37 PM EDT | Special Weather Statement | ILN | Miami | 23 min |
| Aug 12, 7:50 PM EDT | Flash Flood Warning | ILN | Clark, Madison | 3 hr |
| Aug 12, 7:55 PM EDT | Special Weather Statement | ILN | Franklin | 35 min |
| Aug 12, 7:57 PM EDT | Special Weather Statement | ILN | Union | 33 min |
Nearby
Severe Thunderstorm Warnings in Ohio, 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.