Alert archive / Ohio / Tornado Warnings in 2011
Tornado Warning 14, NWS Wilmington, OH
NWS Wilmington, OH issued this tornado warning at Apr 20, 2011, 1:37 AM EDT for Campbell County, Kenton County, Kentucky; Brown County, Clermont County, Hamilton County, Ohio. It was in force for 38 min. 4 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
- Apr 20, 2011, 1:37 AM EDT (05:37 UTC)
- Expired
- Apr 20, 2011, 2:15 AM EDT
- In force
- 38 min
- Issued by
- NWS Wilmington, OH
- Area
- Storm-based polygon
Counties Campbell County, KY, Kenton County, KY, Brown County, OH, Clermont County, OH, Hamilton County, OH
The radar
The Cincinnati radar (KILN), 49 km from the middle of the area, began a volume at 05:37 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 |
|---|---|---|---|
| Apr 20, 1:40 AM EDT | TSTM WND GST 72 | Norwood, OH | MEASURED 72 MPH GUST FROM AMATEUR RADIO |
| Apr 20, 1:41 AM EDT | TSTM WND DMG | 5 Ene Fort Thomas, OH | LARGE 100 YEAR OLD TREE KNOCKED DOWN ONTO HOUSE. OTHER PINE TREES IN AREA SNAPPED. |
| Apr 20, 1:44 AM EDT | TSTM WND GST 67 | Kluk Lunken Airport, OH | 58 KT WIND GUST AT KLUK ASOS |
| Apr 20, 1:59 AM EDT | TSTM WND DMG | 4 S Fayetteville, OH | BARN DESTROYED NEAR US 68 AND MCMULLEN RD. ALSO A FEW 6 TO 8 INCH HEALTHY LIMBS DOWN IN THE AREA. |
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 |
|---|---|---|---|
| Apr 19, 10:13 PM EDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 5.6 hours before the alert went out and 51 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
- 1686 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 1003 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 387 m²/s²
- 0-3 km storm-relative helicity
- 474 m²/s²
- Significant tornado parameter
- 4.3
- Supercell composite
- 18.7
The text
As transmitted, in the capitals the NWS used until 2016.
002
WFUS51 KILN 200537
TORILN
KYC037-117-OHC015-025-061-200615-
/O.NEW.KILN.TO.W.0014.110420T0537Z-110420T0615Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
137 AM EDT WED APR 20 2011
THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A
* TORNADO WARNING FOR...
CAMPBELL COUNTY IN NORTHERN KENTUCKY...
KENTON COUNTY IN NORTHERN KENTUCKY...
NORTHWESTERN BROWN COUNTY IN SOUTHWEST OHIO...
NORTHERN CLERMONT COUNTY IN SOUTHWEST OHIO...
SOUTHEASTERN HAMILTON COUNTY IN SOUTHWEST OHIO...
* UNTIL 215 AM EDT.
* AT 136 AM EDT...RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF
PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR
DAYTON......MOVING EAST AT 50 MPH. IN ADDITION TO THE TORNADO...
THIS STORM IS CAPABLE OF PRODUCING DESTRUCTIVE STRAIGHT LINE WINDS.
* LOCATIONS IMPACTED INCLUDE...
SILVER GROVE...
MELBOURNE...
DEER PARK...
MARIEMONT...
MADEIRA...
ANDERSON TOWNSHIP...
TERRACE PARK...
WITHAMSVILLE...
MILFORD...
BATAVIA...
WILLIAMSBURG...
FAYETTEVILLE...
IN ADDITION...AMBERLEY...FAIRFAX...SILVERTON...FRUIT HILL...TURPIN
HILLS...SHERWOOD...KENWOOD AND NEWTOWN ARE NEAR THE PATH OF THIS
DANGEROUS THUNDERSTORM.
THIS INCLUDES THE FOLLOWING INTERSTATES...
I-71 BETWEEN MILE MARKERS 0 AND 13 IN OHIO...
I-75 BETWEEN MILE MARKERS 186 AND 191 IN KENTUCKY AND BETWEEN MILE
MARKERS 0 AND 10 IN OHIO...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.
PLEASE REPORT TORNADOES...FUNNEL CLOUDS...STRONG WINDS OR HAIL TO THE
NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772...WHEN
YOU CAN DO SO SAFELY.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM EDT WEDNESDAY MORNING
FOR SOUTHEASTERN INDIANA AND NORTHEASTERN KENTUCKY AND SOUTHWESTERN
OHIO.
&&
LAT...LON 3918 8461 3926 8408 3925 8390 3905 8387
3900 8457
TIME...MOT...LOC 0538Z 261DEG 45KT 3911 8444
$$3 follow-up statements
412
WWUS51 KILN 200548
SVSILN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
148 AM EDT WED APR 20 2011
KYC117-200558-
/O.CAN.KILN.TO.W.0014.000000T0000Z-110420T0615Z/
KENTON KY-
148 AM EDT WED APR 20 2011
...THE TORNADO WARNING FOR KENTON COUNTY HAS BEEN CANCELLED...
PLEASE REPORT PREVIOUS TORNADOES...WIND DAMAGE OR HAIL TO THE
NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772.
LAT...LON 3901 8438 3921 8442 3926 8408 3925 8390
3905 8387
TIME...MOT...LOC 0548Z 260DEG 46KT 3914 8426
$$
KYC037-OHC015-025-061-200615-
/O.CON.KILN.TO.W.0014.000000T0000Z-110420T0615Z/
CAMPBELL KY-BROWN OH-HAMILTON OH-CLERMONT OH-
148 AM EDT WED APR 20 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 215 AM EDT FOR NORTHERN
CLERMONT...SOUTHEASTERN HAMILTON...NORTHWESTERN BROWN AND CAMPBELL
COUNTIES...
AT 145 AM EDT...RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR
SUMMERSIDE...MOVING EAST AT 55 MPH. IN ADDITION TO THE TORNADO...THIS
STORM IS CAPABLE OF PRODUCING DESTRUCTIVE STRAIGHT LINE WINDS AND
VERY HEAVY RAIN.
LOCATIONS IMPACTED INCLUDE...
BATAVIA...WILLIAMSBURG AND FAYETTEVILLE.
IN ADDITION...PERINTOWN...MULBERRY...DAY HEIGHTS...MOUNT REPOSE...
SPRINGVALE...GOSHEN...OWENSVILLE AND NEWTONSVILLE ARE NEAR THE PATH
OF THIS STORM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER. PROTECT YOURSELF
FROM FLYING DEBRIS.
HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.
PLEASE REPORT TORNADOES...FUNNEL CLOUDS...STRONG WINDS OR HAIL TO THE
NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772...WHEN
YOU CAN DO SO SAFELY.
&&
LAT...LON 3901 8438 3921 8442 3926 8408 3925 8390
3905 8387
TIME...MOT...LOC 0548Z 260DEG 46KT 3914 8426
$$546
WWUS51 KILN 200604
SVSILN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
204 AM EDT WED APR 20 2011
KYC037-OHC061-200614-
/O.CAN.KILN.TO.W.0014.000000T0000Z-110420T0615Z/
CAMPBELL KY-HAMILTON OH-
204 AM EDT WED APR 20 2011
...THE TORNADO WARNING FOR SOUTHEASTERN HAMILTON AND CAMPBELL
COUNTIES HAS BEEN CANCELLED...
PLEASE REPORT PREVIOUS TORNADOES...WIND DAMAGE OR HAIL TO THE
NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772.
LAT...LON 3923 8421 3926 8408 3925 8390 3905 8387
3903 8421
TIME...MOT...LOC 0604Z 260DEG 46KT 3918 8400
$$
OHC015-025-200615-
/O.CON.KILN.TO.W.0014.000000T0000Z-110420T0615Z/
BROWN OH-CLERMONT OH-
204 AM EDT WED APR 20 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 215 AM EDT FOR
NORTHEASTERN CLERMONT AND NORTHWESTERN BROWN COUNTIES...
AT 202 AM EDT...RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR
NEWTONSVILLE...MOVING EAST AT 55 MPH. IN ADDITION TO THE TORNADO...
THIS STORM IS CAPABLE OF PRODUCING DESTRUCTIVE STRAIGHT LINE WINDS
AND VERY HEAVY RAIN.
LOCATIONS IMPACTED INCLUDE...
FAYETTEVILLE.
IN ADDITION...GREENBUSH AND CHASETOWN ARE NEAR THE PATH OF THIS
STORM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER. PROTECT YOURSELF
FROM FLYING DEBRIS.
HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.
PLEASE REPORT TORNADOES...FUNNEL CLOUDS...STRONG WINDS OR HAIL TO THE
NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772...WHEN
YOU CAN DO SO SAFELY.
&&
LAT...LON 3923 8421 3926 8408 3925 8390 3905 8387
3903 8421
TIME...MOT...LOC 0604Z 260DEG 46KT 3918 8400
$$401
WWUS51 KILN 200613
SVSILN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
213 AM EDT WED APR 20 2011
OHC015-025-200623-
/O.EXP.KILN.TO.W.0014.000000T0000Z-110420T0615Z/
BROWN OH-CLERMONT OH-
213 AM EDT WED APR 20 2011
...THE TORNADO WARNING FOR NORTHEASTERN CLERMONT AND NORTHWESTERN
BROWN COUNTIES WILL EXPIRE AT 215 AM EDT...
THE THUNDERSTORM WAS MOVING OUT OF THE WARNED AREA...THEREFORE
THE TORNADO WARNING WILL BE ALLOWED TO EXPIRE.
GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS STORM.
PLEASE REPORT PREVIOUS TORNADOES...WIND DAMAGE OR HAIL TO THE
NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772.
LAT...LON 3923 8421 3926 8408 3925 8390 3905 8387
3903 8421
TIME...MOT...LOC 0613Z 260DEG 46KT 3920 8385
$$The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 20, 12:34 AM EDT | Severe Thunderstorm Warning | ILN | Boone, Campbell, Kenton | 41 min |
| Apr 20, 12:37 AM EDT | Severe Thunderstorm Warning | ILN | Boone, Campbell, Carroll, Gallatin, Grant, Kenton and 2 more | 38 min |
| Apr 20, 12:52 AM EDT | Tornado Warning | ILN | Boone | 23 min |
| Apr 20, 12:56 AM EDT | Tornado Warning | ILN | Boone, Campbell, Gallatin, Grant, Kenton, Pendleton | 34 min |
| Apr 20, 1:04 AM EDT | Flash Flood Warning | ILN | Boone, Campbell, Kenton | 6 hr |
| Apr 20, 1:10 AM EDT | Tornado Warning | ILN | Bracken, Campbell, Carroll, Gallatin, Grant, Kenton and 3 more | 35 min |
| Apr 20, 1:11 AM EDT | Tornado Warning | ILN | Boone, Campbell, Kenton | 34 min |
| Apr 20, 1:24 AM EDT | Tornado Warning | ILN | Boone, Campbell, Kenton | 36 min |
| Apr 20, 1:41 AM EDT | Tornado Warning | ILN | Bracken, Grant, Pendleton, Robertson | 34 min |
| Apr 20, 1:56 AM EDT | Severe Thunderstorm Warning | ILN | Bracken, Lewis, Mason, Pendleton, Robertson | 49 min |
| Apr 20, 2:02 AM EDT | Tornado Warning | ILN | Bracken, Mason, Pendleton | 28 min |
| Apr 20, 2:34 AM EDT | Severe Thunderstorm Warning | ILN | Lewis, Mason | 41 min |
| Apr 20, 6:55 AM EDT | Areal Flood Advisory | ILN | Boone, Campbell, Kenton | 3 hr |
| Apr 19, 10:53 PM EDT | Severe Thunderstorm Warning | ILN | Auglaize, Darke, Mercer, Preble, Shelby | 67 min |
| Apr 19, 11:42 PM EDT | Flash Flood Warning | ILN | Clark, Darke, Greene, Miami, Montgomery, Preble | 6 hr |
| Apr 19, 11:49 PM EDT | Severe Thunderstorm Warning | ILN | Auglaize, Champaign, Clark, Darke, Hardin, Logan and 4 more | 41 min |
| Apr 19, 11:53 PM EDT | Tornado Warning | ILN | Auglaize, Mercer | 37 min |
| Apr 19, 11:54 PM EDT | Areal Flood Advisory | ILN | Auglaize, Champaign, Clark, Darke, Hardin, Logan and 4 more | 6 hr |
| Apr 19, 11:56 PM EDT | Severe Thunderstorm Warning | ILN | Darke, Miami, Montgomery, Preble | 49 min |
| Apr 20, 12:10 AM EDT | Tornado Warning | ILN | Auglaize, Hardin | 35 min |
| Apr 20, 12:26 AM EDT | Severe Thunderstorm Warning | ILN | Champaign, Clark, Hardin, Logan, Miami, Shelby and 1 more | 49 min |
| Apr 20, 12:39 AM EDT | Severe Thunderstorm Warning | ILN | Darke, Preble | 51 min |
| Apr 20, 12:46 AM EDT | Severe Thunderstorm Warning | ILN | Clark, Darke, Greene, Miami, Montgomery, Preble | 44 min |
| Apr 20, 12:47 AM EDT | Tornado Warning | ILN | Butler | 28 min |
| Apr 20, 1:09 AM EDT | Tornado Warning | ILN | Butler, Hamilton, Warren | 36 min |
| Apr 20, 1:17 AM EDT | Severe Thunderstorm Warning | ILN | Butler, Champaign, Clark, Greene, Miami, Montgomery and 2 more | 43 min |
| Apr 20, 1:40 AM EDT | Severe Thunderstorm Warning | ILN | Butler, Clermont, Clinton, Greene, Hamilton, Highland and 2 more | 50 min |
| Apr 20, 1:43 AM EDT | Severe Thunderstorm Warning | ILN | Champaign, Clark, Delaware, Fayette, Franklin, Greene and 5 more | 47 min |
| Apr 20, 1:49 AM EDT | Severe Thunderstorm Warning | ILN | Adams, Brown, Clermont, Clinton, Highland | 41 min |
| Apr 20, 1:55 AM EDT | Severe Thunderstorm Warning | ILN | Clinton, Fayette, Franklin, Greene, Highland, Madison and 2 more | 50 min |
| Apr 20, 2:00 AM EDT | Tornado Warning | ILN | Brown, Highland | 30 min |
| Apr 20, 2:06 AM EDT | Severe Thunderstorm Warning | ILN | Delaware, Fairfield, Franklin, Licking, Madison, Pickaway and 1 more | 39 min |
| Apr 20, 2:07 AM EDT | Areal Flood Advisory | ILN | Clinton, Highland, Warren | 6 hr |
| Apr 20, 2:19 AM EDT | Severe Thunderstorm Warning | ILN | Adams, Fayette, Highland, Pike, Ross, Scioto | 41 min |
| Apr 20, 2:23 AM EDT | Tornado Warning | ILN | Adams, Highland, Pike | 37 min |
| Apr 20, 2:27 AM EDT | Severe Thunderstorm Warning | ILN | Adams | 18 min |
| Apr 20, 2:28 AM EDT | Areal Flood Advisory | ILN | Delaware, Fayette, Franklin, Madison, Pickaway, Union | 6 hr |
| Apr 20, 2:34 AM EDT | Tornado Warning | ILN | Fairfield, Licking | 26 min |
| Apr 20, 2:38 AM EDT | Tornado Warning | ILN | Delaware, Franklin, Licking | 23 min |
| Apr 20, 2:43 AM EDT | Severe Thunderstorm Warning | ILN | Fairfield, Hocking, Pickaway, Ross | 47 min |
| Apr 20, 2:51 AM EDT | Severe Thunderstorm Warning | ILN | Pike, Ross, Scioto | 39 min |
| Apr 20, 3:12 AM EDT | Severe Thunderstorm Warning | ILN | Scioto | 20 min |
| Apr 20, 3:26 AM EDT | Severe Thunderstorm Warning | ILN | Hocking | 26 min |
| Apr 20, 5:46 AM EDT | Areal Flood Advisory | ILN | Clark, Darke, Greene, Miami, Montgomery, Preble and 1 more | 3 hr |
| Apr 20, 9:24 AM EDT | River Flood Warning | ILN | Butler, Montgomery, Warren | 5 hr |
| Apr 20, 9:24 AM EDT | River Flood Warning | ILN | Butler | 5 hr |
| Apr 20, 12:08 PM EDT | River Flood Warning | ILN | Clermont, Hamilton, Warren | 7 hr |
| Apr 20, 2:24 PM EDT | River Flood Warning | ILN | Adams | 3 hr |
| Apr 20, 3:46 PM EDT | River Flood Advisory | ILN | Hamilton | 11 hr |
Nearby
Tornado Warnings in Ohio, 2011Tornado Warnings in Kentucky, 2011Every tornado warning in 2011Tornadoes in 2011
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.