Alert archive / Ohio / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 112, NWS Wilmington, OH

August 27, 20216 counties in Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Aug 27, 2021, 6:26 PM EDT for 6 counties in Ohio. It was in force for 34 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, 6:26 PM EDT (22:26 UTC)
Expired: Aug 27, 2021, 7:00 PM EDT
In force: 34 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Brown County, OH, Butler County, OH, Clermont County, OH, Clinton County, OH, Hamilton County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 33 km from the middle of the area, began a volume at 22:26 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, 10.4 hours before the alert went out and 36 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

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

Open this sounding in Storm Lab

The text

As transmitted.

648 
WUUS51 KILN 272226
SVRILN
OHC015-017-025-027-061-165-272300-
/O.NEW.KILN.SV.W.0112.210827T2226Z-210827T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wilmington OH
626 PM EDT Fri Aug 27 2021

The National Weather Service in Wilmington has issued a

* Severe Thunderstorm Warning for...
  Northeastern Hamilton County in southwestern Ohio...
  Southeastern Butler County in southwestern Ohio...
  Northern Clermont County in southwestern Ohio...
  Northwestern Brown County in southwestern Ohio...
  Warren County in southwestern Ohio...
  Southwestern Clinton County in southwestern Ohio...

* Until 700 PM EDT.

* At 626 PM EDT, a severe thunderstorm was located near Morrow,
  moving east at 25 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and power lines.

* Locations impacted include...
  Mason, Lebanon, Sharonville, Monroe, Blue Ash, Loveland, Reading,
  Montgomery, Madeira, Milford, Deer Park, Blanchester, West Chester,
  Terrace Park, Batavia, Morrow, Camp Dennison, Highpoint, Remington
  and Concorde Hills.

This includes the following Interstates...
 I-71 in Ohio between mile markers 12 and 41.
 I-75 in Ohio between mile markers 21 and 29.

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 3907 8425 3922 8442 3943 8439 3947 8415
      3947 8402 3936 8393 3923 8390 3909 8410
TIME...MOT...LOC 2226Z 251DEG 23KT 3930 8416 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Hickman

2 follow-up statements

104 
WWUS51 KILN 272239
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
639 PM EDT Fri Aug 27 2021

OHC015-017-025-027-061-165-272300-
/O.CON.KILN.SV.W.0112.000000T0000Z-210827T2300Z/
Hamilton OH-Butler OH-Clermont OH-Brown OH-Warren OH-Clinton OH-
639 PM EDT Fri Aug 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR NORTHEASTERN HAMILTON...SOUTHEASTERN BUTLER...NORTHERN
CLERMONT...NORTHWESTERN BROWN...WARREN AND SOUTHWESTERN CLINTON
COUNTIES...

At 638 PM EDT, a severe thunderstorm was located near Morrow, moving
east at 15 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and power lines.

Locations impacted include...
Mason, Lebanon, Sharonville, Monroe, Blue Ash, Loveland, Reading,
Montgomery, Madeira, Milford, Deer Park, Blanchester, West Chester,
Terrace Park, Batavia, Morrow, Camp Dennison, Highpoint, Remington
and Concorde Hills.

This includes the following Interstates...
 I-71 in Ohio between mile markers 12 and 41.
 I-75 in Ohio between mile markers 21 and 29.

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 3907 8425 3922 8442 3943 8439 3947 8415
      3947 8402 3936 8393 3923 8390 3909 8410
TIME...MOT...LOC 2238Z 249DEG 12KT 3931 8414 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Hickman

456 
WWUS51 KILN 272252
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
652 PM EDT Fri Aug 27 2021

OHC015-017-025-027-061-165-272302-
/O.EXP.KILN.SV.W.0112.000000T0000Z-210827T2300Z/
Hamilton OH-Butler OH-Clermont OH-Brown OH-Warren OH-Clinton OH-
652 PM EDT Fri Aug 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HAMILTON...
SOUTHEASTERN BUTLER...NORTHERN CLERMONT...NORTHWESTERN BROWN...WARREN
AND SOUTHWESTERN CLINTON COUNTIES WILL EXPIRE AT 700 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 and heavy rain 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 3907 8425 3922 8442 3943 8439 3947 8415
      3947 8402 3936 8393 3923 8390 3909 8410
TIME...MOT...LOC 2252Z 249DEG 13KT 3932 8410 

$$

Hickman

The 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, 6:18 PM EDT	Severe Thunderstorm Warning	ILN	Brown, Clermont	42 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, 2021 Every 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.