Alert archive / Ohio / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 111, NWS Wilmington, OH
NWS Wilmington, OH issued this severe thunderstorm warning at Aug 27, 2021, 6:18 PM EDT for Brown County, Clermont County, Ohio. It was in force for 42 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 27, 2021, 6:18 PM EDT (22:18 UTC)
- Expired
- Aug 27, 2021, 7:00 PM EDT
- In force
- 42 min
- Issued by
- NWS Wilmington, OH
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Brown County, OH, Clermont County, OH
The radar
The Cincinnati radar (KILN), 52 km from the middle of the area, began a volume at 22:21 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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.3 hours before the alert went out and 53 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
- 167 J/kg
- Mixed-layer CIN
- -125 J/kg
- Mixed-layer LCL
- 1311 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
482
WUUS51 KILN 272218
SVRILN
OHC015-025-272300-
/O.NEW.KILN.SV.W.0111.210827T2218Z-210827T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wilmington OH
618 PM EDT Fri Aug 27 2021
The National Weather Service in Wilmington has issued a
* Severe Thunderstorm Warning for...
Southeastern Clermont County in southwestern Ohio...
Central Brown County in southwestern Ohio...
* Until 700 PM EDT.
* At 618 PM EDT, a severe thunderstorm was located near Georgetown,
moving north at 10 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* Locations impacted include...
Georgetown, Mount Orab, Hamersville, State Route 32 at US Route 68,
Feesburg, Lake Waynoka, New Hope and Locust Ridge.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
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 3891 8375 3883 8399 3901 8406 3905 8396
3905 8391
TIME...MOT...LOC 2218Z 165DEG 10KT 3895 8392
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Coniglio2 follow-up statements
001
WWUS51 KILN 272238
SVSILN
Severe Weather Statement
National Weather Service Wilmington OH
638 PM EDT Fri Aug 27 2021
OHC015-025-272300-
/O.CON.KILN.SV.W.0111.000000T0000Z-210827T2300Z/
Clermont OH-Brown OH-
638 PM EDT Fri Aug 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR SOUTHEASTERN CLERMONT AND CENTRAL BROWN COUNTIES...
At 637 PM EDT, a severe thunderstorm was located over Mount Orab,
moving north at 10 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
Locations impacted include...
Georgetown, Mount Orab, Hamersville, State Route 32 at US Route 68,
Feesburg, Lake Waynoka, New Hope and Locust Ridge.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
To report severe weather, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.
&&
LAT...LON 3891 8375 3883 8399 3901 8406 3905 8396
3905 8391
TIME...MOT...LOC 2237Z 165DEG 10KT 3900 8394
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Coniglio350
WWUS51 KILN 272253
SVSILN
Severe Weather Statement
National Weather Service Wilmington OH
653 PM EDT Fri Aug 27 2021
OHC015-025-272303-
/O.EXP.KILN.SV.W.0111.000000T0000Z-210827T2300Z/
Clermont OH-Brown OH-
653 PM EDT Fri Aug 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CLERMONT AND
CENTRAL BROWN COUNTIES WILL EXPIRE AT 700 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. 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 3891 8375 3883 8399 3901 8406 3905 8396
3905 8391
TIME...MOT...LOC 2253Z 165DEG 10KT 3904 8395
$$
ConiglioThe office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 4:55 PM EDT | Special Weather Statement | ILN | Hamilton | 35 min |
| Aug 27, 5:48 PM EDT | Special Weather Statement | ILN | Hardin | 27 min |
| Aug 27, 5:51 PM EDT | Special Weather Statement | ILN | Hamilton | 39 min |
| Aug 27, 5:56 PM EDT | Special Weather Statement | ILN | Butler | 34 min |
| Aug 27, 6:10 PM EDT | Special Weather Statement | ILN | Brown | 35 min |
| Aug 27, 6:11 PM EDT | Areal Flood Advisory | ILN | Clermont, Hamilton | 2 hr |
| Aug 27, 6:26 PM EDT | Severe Thunderstorm Warning | ILN | Brown, Butler, Clermont, Clinton, Hamilton, Warren | 34 min |
| Aug 27, 6:34 PM EDT | Special Weather Statement | ILN | Butler, Preble | 26 min |
| Aug 27, 7:01 PM EDT | Special Weather Statement | ILN | Highland | 29 min |
| Aug 27, 7:38 PM EDT | Special Weather Statement | ILN | Miami | 37 min |
| Aug 27, 7:49 PM EDT | Special Weather Statement | ILN | Shelby | 26 min |
| Aug 27, 7:52 PM EDT | Severe Thunderstorm Warning | ILN | Miami | 38 min |
| Aug 27, 7:54 PM EDT | Severe Thunderstorm Warning | ILN | Shelby | 18 min |
| Aug 27, 7:55 PM EDT | Special Weather Statement | ILN | Delaware | 35 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.