Alert archive / Ohio / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 97, NWS Wilmington, OH
NWS Wilmington, OH issued this severe thunderstorm warning at Aug 12, 2021, 5:28 PM EDT for Franklin County, Madison County, Pickaway County, Ohio. It was in force for 47 min. 8 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
- Aug 12, 2021, 5:28 PM EDT (21:28 UTC)
- Expired
- Aug 12, 2021, 6:15 PM EDT
- In force
- 47 min
- Issued by
- NWS Wilmington, OH
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Franklin County, OH, Madison County, OH, Pickaway County, OH
The radar
The Cincinnati radar (KILN), 72 km from the middle of the area, began a volume at 21:32 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, 6:02 PM EDT | TSTM WND DMG | 2 S Big Plain, OH | LARGE TREE DOWN BLOCKING ROADWAY. |
| Aug 12, 6:05 PM EDT | TSTM WND DMG | 2 S Big Plain, OH | LARGE TREE DOWN BLOCKING ROADWAY. |
| Aug 12, 6:05 PM EDT | TSTM WND DMG | 5 N Mount Sterling, OH | MULTIPLE LARGE TREES DOWN BLOCKING ROADS. |
| Aug 12, 6:07 PM EDT | TSTM WND DMG | 3 Nnw Derby, OH | MULTIPLE LARGE TREE LIMBS DOWNED IN ROADWAY. |
| Aug 12, 6:09 PM EDT | TSTM WND DMG | 6 Nnw Mount Sterling, OH | LARGE TREE DOWN. FELL INTO POWER LINES. |
| Aug 12, 6:13 PM EDT | TSTM WND DMG | 5 Nnw Mount Sterling, OH | LARGE TREE DOWN IN ROADWAY. |
| Aug 12, 6:13 PM EDT | HAIL 1 | 5 N Mount Sterling, OH | |
| Aug 12, 6:19 PM EDT | TSTM WND DMG | Harrisburg, OH | MULTIPLE LARGE TREE LIMBS DOWN ON US 62. |
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, 9.5 hours before the alert went out and 70 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.
505
WUUS51 KILN 122128
SVRILN
OHC049-097-129-122215-
/O.NEW.KILN.SV.W.0097.210812T2128Z-210812T2215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wilmington OH
528 PM EDT Thu Aug 12 2021
The National Weather Service in Wilmington has issued a
* Severe Thunderstorm Warning for...
Southwestern Franklin County in central Ohio...
Northwestern Pickaway County in central Ohio...
Southeastern Madison County in central Ohio...
* Until 615 PM EDT.
* At 528 PM EDT, a severe thunderstorm was located near Jefferson,
moving east at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is possible. Expect wind
damage to trees and power lines.
* Locations impacted include...
Columbus, Grove City, Bexley, Jefferson, West Jefferson, Lake
Darby, Grandview Heights, Obetz, Urbancrest, Valleyview, Marble
Cliff, Harrisburg, Orient, Lockbourne, Lilly Chapel, Georgesville,
Madison Lake, Darbydale and Big Plain.
This includes the following Interstates...
I-70 in Ohio between mile markers 79 and 103.
I-71 in Ohio between mile markers 86 and 109.
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 3977 8340 3996 8338 4000 8318 3997 8294
3980 8295 3977 8317
TIME...MOT...LOC 2128Z 264DEG 19KT 3990 8326
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hatzos4 follow-up statements
400
WWUS51 KILN 122136
SVSILN
Severe Weather Statement
National Weather Service Wilmington OH
536 PM EDT Thu Aug 12 2021
OHC049-097-129-122215-
/O.CON.KILN.SV.W.0097.000000T0000Z-210812T2215Z/
Franklin OH-Pickaway OH-Madison OH-
536 PM EDT Thu Aug 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SOUTHWESTERN FRANKLIN...NORTHWESTERN PICKAWAY AND SOUTHEASTERN
MADISON COUNTIES...
At 535 PM EDT, a severe thunderstorm was located near Lake Darby,
moving east at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is possible. Expect wind
damage to trees and power lines.
Locations impacted include...
Columbus, Grove City, Bexley, Jefferson, West Jefferson, Lake Darby,
Obetz, Urbancrest, Valleyview, Harrisburg, Orient, Lockbourne, Lilly
Chapel, Georgesville, Madison Lake, Darbydale, Big Plain,
Wrightsville, Lincoln Village and New Rome.
This includes the following Interstates...
I-70 in Ohio between mile markers 96 and 103.
I-71 in Ohio between mile markers 86 and 109.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.
&&
LAT...LON 3977 8340 3992 8338 3997 8318 3997 8294
3980 8295 3977 8317
TIME...MOT...LOC 2135Z 269DEG 16KT 3987 8322
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hatzos114
WWUS51 KILN 122150
SVSILN
Severe Weather Statement
National Weather Service Wilmington OH
550 PM EDT Thu Aug 12 2021
OHC049-097-129-122215-
/O.CON.KILN.SV.W.0097.000000T0000Z-210812T2215Z/
Franklin OH-Pickaway OH-Madison OH-
550 PM EDT Thu Aug 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SOUTHWESTERN FRANKLIN...NORTHWESTERN PICKAWAY AND SOUTHEASTERN
MADISON COUNTIES...
At 550 PM EDT, a severe thunderstorm was located 7 miles north of
Mount Sterling, moving east at 15 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is possible. Expect wind
damage to trees and power lines.
Locations impacted include...
Columbus, Grove City, Obetz, Urbancrest, Harrisburg, Orient,
Lockbourne, Lilly Chapel, Georgesville, Madison Lake, Darbydale, Big
Plain, Wrightsville, Derby and Lincoln Village.
This includes I-71 in Ohio between mile markers 86 and 104.
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 3977 8340 3990 8338 3995 8313 3992 8294
3980 8295 3977 8317
TIME...MOT...LOC 2150Z 273DEG 15KT 3982 8331
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hatzos018
WWUS51 KILN 122201
SVSILN
Severe Weather Statement
National Weather Service Wilmington OH
601 PM EDT Thu Aug 12 2021
OHC049-097-129-122215-
/O.CON.KILN.SV.W.0097.000000T0000Z-210812T2215Z/
Franklin OH-Pickaway OH-Madison OH-
601 PM EDT Thu Aug 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SOUTHWESTERN FRANKLIN...NORTHWESTERN PICKAWAY AND SOUTHEASTERN
MADISON COUNTIES...
At 601 PM EDT, a severe thunderstorm was located 7 miles north of
Mount Sterling, moving east at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is possible. Expect wind
damage to trees and power lines.
Locations impacted include...
Columbus, Grove City, Commercial Point, Urbancrest, Harrisburg,
Orient, Georgesville, Darbydale, Big Plain, Wrightsville and Derby.
This includes I-71 in Ohio between mile markers 86 and 104.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.
&&
LAT...LON 3986 8339 3992 8314 3992 8301 3979 8300
3977 8317 3977 8340
TIME...MOT...LOC 2201Z 264DEG 16KT 3983 8327
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hatzos375
WWUS51 KILN 122214
SVSILN
Severe Weather Statement
National Weather Service Wilmington OH
614 PM EDT Thu Aug 12 2021
OHC049-097-129-122224-
/O.EXP.KILN.SV.W.0097.000000T0000Z-210812T2215Z/
Franklin OH-Pickaway OH-Madison OH-
614 PM EDT Thu Aug 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN FRANKLIN...
NORTHWESTERN PICKAWAY AND SOUTHEASTERN MADISON COUNTIES WILL EXPIRE
AT 615 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 small hail
and gusty winds are still possible with this thunderstorm.
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 3986 8339 3992 8314 3992 8301 3979 8300
3977 8317 3977 8340
TIME...MOT...LOC 2214Z 264DEG 19KT 3984 8319
$$
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, 5:29 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, 7:44 PM EDT | Severe Thunderstorm Warning | ILN | Miami | 31 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.