Alert archive / Ohio / Tornado Warnings in 2012

Tornado Warning 27, NWS Wilmington, OH

May 1, 2012Butler County, Warren County, Ohio

NWS Wilmington, OH issued this tornado warning at May 1, 2012, 6:12 PM EDT for Butler County, Warren County, Ohio. It was in force for 33 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
May 1, 2012, 6:12 PM EDT (22:12 UTC)
Expired
May 1, 2012, 6:45 PM EDT
In force
33 min
Issued by
NWS Wilmington, OH
Area
Storm-based polygon

Counties Butler County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 34 km from the middle of the area, began a volume at 22:15 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

TimeReportWhereRemark
May 1, 6:20 PM EDTTORNADO 01 Nw Lebanon, OHNWS STORM SURVEY CONFIRMS BRIEF EF0 TORNADO WITH MINOR DAMAGE TO A STRUCTURE AND AUTOMOBILE
May 1, 6:24 PM EDTTORNADO 03 Nne Lebanon, OHNWS SURVEY CONFIRMS BRIEF EF0 TORNADO WITH MINOR TREE AND STRUCTURAL DAMAGE
May 1, 6:30 PM EDTFUNNEL CLOUD2 N Lebanon, OH
May 1, 6:33 PM EDTFUNNEL CLOUD1 E Lebanon, OH

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.

IssuedProductOfficeLasted
May 1, 3:01 PM EDTTornado WatchSPC7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.2 hours before the alert went out and 35 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-pSkew-T log-p diagram, Cncnati-Daytn, OH at 12:00Z on 2012-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 15 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 2012-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
15 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
516 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

880 
WFUS51 KILN 012212
TORILN
OHC017-165-012245-
/O.NEW.KILN.TO.W.0027.120501T2212Z-120501T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
612 PM EDT TUE MAY 1 2012

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN BUTLER COUNTY IN SOUTHWEST OHIO...
  CENTRAL WARREN COUNTY IN SOUTHWEST OHIO...

* UNTIL 645 PM EDT.

* SPOTTERS RECENTLY REPORTED A FUNNEL CLOUD IN NORTHEAST BUTLER      
  COUNTY. THE FUNNEL CLOUD COULD TOUCH DOWN AT ANY TIME. RADAR       
  INDICATED THAT THIS DANGEROUS STORM WAS LOCATED NEAR               
  MONROE...MOVING EAST AT 30 MPH. 

* LOCATIONS IMPACTED INCLUDE...
  MONROE...
  LEBANON...
  WAYNESVILLE...

IN ADDITION...STATE ROUTE 63 AT STATE ROUTE 741...PEKIN...GENNTOWN
AND OREGONIA ARE NEAR THE PATH OF THIS DANGEROUS THUNDERSTORM.

THIS INCLUDES THE FOLLOWING INTERSTATE...
I-75 BETWEEN MILE MARKERS 28 AND 33...

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.

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 1000 PM EDT TUESDAY EVENING
FOR SOUTHEASTERN INDIANA AND NORTHEASTERN KENTUCKY AND SOUTHWESTERN
OHIO.

&&

LAT...LON 3954 8408 3940 8407 3942 8440 3948 8440
TIME...MOT...LOC 2211Z 265DEG 27KT 3945 8436

$$


BINAU
3 follow-up statements
569 
WWUS51 KILN 012219
SVSILN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
619 PM EDT TUE MAY 1 2012

OHC017-012229-
/O.CAN.KILN.TO.W.0027.000000T0000Z-120501T2245Z/
BUTLER OH-
619 PM EDT TUE MAY 1 2012

...THE TORNADO WARNING FOR EASTERN BUTLER 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 3947 8434 3949 8433 3954 8408 3940 8407
      3942 8434 3943 8434 3944 8434 3946 8434
TIME...MOT...LOC 2219Z 269DEG 27KT 3945 8425

$$

OHC165-012245-
/O.CON.KILN.TO.W.0027.000000T0000Z-120501T2245Z/
WARREN OH-
619 PM EDT TUE MAY 1 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR CENTRAL
WARREN COUNTY...

AT 615 PM EDT...RADAR WAS TRACKING A SEVERE THUNDERSTORM WITH A 
HISTORY OF PRODUCING NUMEROUS FUNNEL CLOUDS...AND ROTATING WALL 
CLOUDS. THIS DANGEROUS STORM WAS LOCATED NEAR STATE ROUTE 63 AT 
STATE ROUTE 741...MOVING EAST AT 30 MPH. WHILE A TORNADO IS NOT 
BEING REPORTED ON THE GROUND...THE POTENTIAL IS THERE FOR A TORNADO 
AT ANY MOMENT.

LOCATIONS IMPACTED INCLUDE...
LEBANON AND WAYNESVILLE.

IN ADDITION...PEKIN...GENNTOWN AND OREGONIA ARE NEAR THE PATH OF THIS
STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE NEAR THE PATH OF THIS DANGEROUS STORM...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.

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 3947 8434 3949 8433 3954 8408 3940 8407
      3942 8434 3943 8434 3944 8434 3946 8434
TIME...MOT...LOC 2219Z 269DEG 27KT 3945 8425

$$


BINAU
367 
WWUS51 KILN 012226
SVSILN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
626 PM EDT TUE MAY 1 2012

OHC165-012245-
/O.CON.KILN.TO.W.0027.000000T0000Z-120501T2245Z/
WARREN OH-
626 PM EDT TUE MAY 1 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR CENTRAL
WARREN COUNTY...

AT 624 PM EDT...RADAR WAS TRACKING A SEVERE THUNDERSTORM WITH A 
HISTORY OF PRODUCING NUMEROUS FUNNEL CLOUDS AND ROTATING WALL 
CLOUDS. THIS DANGEROUS STORM WAS LOCATED NEAR LEBANON...MOVING EAST 
AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
WAYNESVILLE.

IN ADDITION...GENNTOWN AND OREGONIA ARE NEAR THE PATH OF THIS STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE NEAR THE PATH OF THIS DANGEROUS STORM...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.

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 3943 8425 3945 8425 3951 8424 3954 8408
      3940 8407 3941 8423
TIME...MOT...LOC 2226Z 269DEG 27KT 3945 8419

$$


BINAU
406 
WWUS51 KILN 012249
SVSILN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
649 PM EDT TUE MAY 1 2012

OHC165-012255-
/O.EXP.KILN.TO.W.0027.000000T0000Z-120501T2245Z/
WARREN OH-
649 PM EDT TUE MAY 1 2012

...THE TORNADO WARNING FOR CENTRAL WARREN COUNTY HAS EXPIRED BUT 
REMAINS IN EFFECT FOR EXTREME NORTHEAST WARREN COUNTY...

THE THUNDERSTORM HAS MOVED INTO NORTHEAST WARREN COUNTY...THEREFORE 
THE TORNADO WARNING FOR CENTRAL WARREN COUNTY INCLUDING THE 
LEBANON AREA HAS BEEN ALLOWED TO EXPIRE.

PLEASE REPORT PREVIOUS TORNADOES...WIND DAMAGE OR HAIL TO THE
NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772.

A TORNADO WATCH REMAINS IN EFFECT.

LAT...LON 3943 8425 3945 8425 3951 8424 3954 8408
      3940 8407 3941 8423
TIME...MOT...LOC 2245Z 269DEG 27KT 3944 8401

$$


BINAU

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 30, 8:42 PM EDTAreal Flood AdvisoryILNButler, Hamilton, Montgomery, Warren2 hr
Apr 30, 8:59 PM EDTSpecial Weather StatementILNAdams, Brown, Clermont, Highland61 min
Apr 30, 9:16 PM EDTSevere Thunderstorm WarningILNClermont21 min
Apr 30, 9:36 PM EDTAreal Flood AdvisoryILNGreene, Montgomery, Warren114 min
Apr 30, 10:21 PM EDTSpecial Weather StatementILNPickaway39 min
May 1, 4:30 PM EDTSevere Thunderstorm WarningILNButler, Hamilton45 min
May 1, 4:42 PM EDTSevere Thunderstorm WarningILNDarke, Preble48 min
May 1, 4:59 PM EDTSevere Thunderstorm WarningILNButler46 min
May 1, 5:08 PM EDTSevere Thunderstorm WarningILNHamilton52 min
May 1, 5:20 PM EDTSevere Thunderstorm WarningILNHamilton40 min
May 1, 5:24 PM EDTSevere Thunderstorm WarningILNDarke, Miami, Montgomery, Preble51 min
May 1, 5:30 PM EDTTornado WarningILNButler26 min
May 1, 5:45 PM EDTSevere Thunderstorm WarningILNBrown, Highland45 min
May 1, 5:47 PM EDTTornado WarningILNButler28 min
May 1, 5:52 PM EDTSevere Thunderstorm WarningILNClermont, Hamilton, Warren38 min
May 1, 5:59 PM EDTSevere Thunderstorm WarningILNHamilton15 min
May 1, 6:05 PM EDTSevere Thunderstorm WarningILNClinton, Greene40 min
May 1, 6:12 PM EDTAreal Flood AdvisoryILNButler, Hamilton, Warren4 hr
May 1, 6:18 PM EDTSevere Thunderstorm WarningILNHighland, Pike, Ross42 min
May 1, 6:33 PM EDTFlash Flood WarningILNHamilton3 hr
May 1, 6:34 PM EDTTornado WarningILNClinton, Warren26 min
May 1, 6:39 PM EDTSevere Thunderstorm WarningILNClark, Madison41 min
May 1, 6:41 PM EDTSevere Thunderstorm WarningILNRoss49 min
May 1, 6:49 PM EDTSpecial Weather StatementILNAdams, Brown56 min
May 1, 6:52 PM EDTSevere Thunderstorm WarningILNFairfield, Pickaway38 min
May 1, 6:59 PM EDTSpecial Weather StatementILNPike61 min
May 1, 7:03 PM EDTSevere Thunderstorm WarningILNAdams, Brown, Highland42 min
May 1, 7:09 PM EDTSevere Thunderstorm WarningILNPike, Ross51 min
May 1, 7:24 PM EDTSpecial Weather StatementILNClermont, Hamilton51 min
May 1, 7:31 PM EDTSevere Thunderstorm WarningILNAdams, Pike, Scioto44 min
May 1, 7:54 PM EDTSevere Thunderstorm WarningILNScioto21 min

Nearby

Tornado Warnings in Ohio, 2012Every tornado warning in 2012Tornadoes in 2012

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.