Alert archive / Ohio / Tornado Warnings in 2011

Tornado Warning 48, NWS Wilmington, OH

May 23, 2011Madison County, Union County, Ohio

NWS Wilmington, OH issued this tornado warning at May 23, 2011, 8:25 PM EDT for Madison County, Union County, Ohio. It was in force for 24 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 23, 2011, 8:25 PM EDT (00:25 UTC)
Expired: May 23, 2011, 8:49 PM EDT
In force: 24 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon

Counties Madison County, OH, Union County, OH

The radar

The Cincinnati radar (KILN), 93 km from the middle of the area, began a volume at 00:28 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
May 23, 8:36 PM EDT	TSTM WND DMG	Unionville Center, OH	TREE DOWNED.
May 23, 8:39 PM EDT	HAIL 0.5	5 S Marysville, OH
May 23, 8:40 PM EDT	TSTM WND DMG	4 E Marysville, OH	BARN UNDER CONSTRUCTION HAD POSTS KNOCKED OUT OF THE GROUND ON HINTON-MILL RD
May 23, 8:43 PM EDT	TSTM WND GST 60	Kmrt Marysville Apt, 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.

Issued	Product	Office	Lasted
May 23, 4:28 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.4 hours before the alert went out and 92 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: 729 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 1494 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 144 m²/s²
0-3 km storm-relative helicity: 215 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 5.2

Open this sounding in Storm Lab

The text

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

331 
WFUS51 KILN 240025
TORILN
OHC097-159-240115-
/O.NEW.KILN.TO.W.0048.110524T0025Z-110524T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
825 PM EDT MON MAY 23 2011

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN MADISON COUNTY IN CENTRAL OHIO...
  UNION COUNTY IN CENTRAL OHIO...

* UNTIL 915 PM EDT.

* AT 824 PM EDT...RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF
  PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR STATE
  ROUTE 4 AT STATE ROUTE 161......MOVING EAST AT 35 MPH. IN ADDITION
  TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING DESTRUCTIVE
  STRAIGHT LINE WINDS.

* LOCATIONS IMPACTED INCLUDE...
  MARYSVILLE...
  PLAIN CITY...

IN ADDITION...ROSEDALE...STATE ROUTE 29 AT STATE ROUTE 38...
PLUMWOOD...POTTERSBURG...MILFORD CENTER...CHUCKERY...RAYMOND AND
UNIONVILLE CENTER ARE NEAR THE PATH OF THIS DANGEROUS THUNDERSTORM.

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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT
TUESDAY MORNING FOR SOUTHEASTERN INDIANA AND NORTHEASTERN KENTUCKY
AND SOUTHWESTERN OHIO.

&&

LAT...LON 4041 8325 4025 8325 4024 8317 4011 8317
      4011 8321 4005 8321 4005 8325 4001 8325
      3995 8353 4001 8351 4022 8350 4023 8355
      4035 8354
TIME...MOT...LOC 0025Z 254DEG 30KT 4019 8352

$$

HATZOS

2 follow-up statements

885 
WWUS51 KILN 240035
SVSILN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
835 PM EDT MON MAY 23 2011

OHC097-159-240115-
/O.CON.KILN.TO.W.0048.000000T0000Z-110524T0115Z/
MADISON OH-UNION OH-
835 PM EDT MON MAY 23 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM EDT FOR SOUTHERN
UNION AND NORTHERN MADISON COUNTIES IN CENTRAL OHIO...

AT 833 PM EDT...RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR
MILFORD CENTER...MOVING EAST AT 50 MPH. IN ADDITION TO THE TORNADO...
THIS STORM IS CAPABLE OF PRODUCING DESTRUCTIVE STRAIGHT LINE WINDS.

LOCATIONS IMPACTED INCLUDE...
MARYSVILLE AND PLAIN CITY.

IN ADDITION...BROADWAY...AMITY...US ROUTE 33 AT US ROUTE 42...
WATKINS...PHARISBURG AND MAGNETIC SPRINGS 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.

TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. 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 4025 8325 4024 8325 4024 8317 4011 8317
      4011 8321 4005 8321 4005 8325 4001 8351
      4023 8350 4036 8348 4041 8325
TIME...MOT...LOC 0036Z 251DEG 44KT 4017 8337

$$

HATZOS

237 
WWUS51 KILN 240049
SVSILN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
849 PM EDT MON MAY 23 2011

OHC097-159-240059-
/O.CAN.KILN.TO.W.0048.000000T0000Z-110524T0115Z/
MADISON OH-UNION OH-
849 PM EDT MON MAY 23 2011

...THE TORNADO WARNING FOR SOUTHERN UNION AND NORTHERN MADISON
COUNTIES IN CENTRAL OHIO HAS BEEN CANCELLED...

THE THUNDERSTORM HAS WEAKENED AND NO LONGER APPEARS CAPABLE OF 
PRODUCING A TORNADO. HOWEVER...STRONG WINDS ARE STILL POSSIBLE...AND 
A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT.

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

LAT...LON 4025 8325 4024 8325 4024 8317 4011 8317
      4011 8321 4005 8321 4005 8325 4001 8351
      4023 8350 4036 8348 4041 8325
TIME...MOT...LOC 0049Z 251DEG 44KT 4022 8317

$$

HATZOS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 8:02 PM EDT	Severe Thunderstorm Warning	ILN	Delaware, Hardin, Logan, Union	58 min
May 23, 8:02 PM EDT	Tornado Warning	ILN	Champaign, Clark, Logan	32 min
May 23, 8:07 PM EDT	Severe Thunderstorm Warning	ILN	Champaign, Clark, Delaware, Fayette, Franklin, Greene and 3 more	53 min
May 23, 8:08 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Brown, Clinton, Fayette, Highland, Pike and 2 more	67 min
May 23, 8:22 PM EDT	Areal Flood Advisory	ILN	Butler, Clermont, Hamilton, Warren	3 hr
May 23, 8:43 PM EDT	Severe Thunderstorm Warning	ILN	Delaware, Fairfield, Franklin, Hocking, Licking, Pickaway and 1 more	62 min
May 23, 8:52 PM EDT	Areal Flood Advisory	ILN	Brown, Clermont, Clinton, Highland, Pike, Ross	3 hr
May 23, 9:03 PM EDT	Severe Thunderstorm Warning	ILN	Pike, Scioto	27 min
May 23, 9:36 PM EDT	Areal Flood Advisory	ILN	Fairfield, Hocking, Licking	3 hr

Nearby

Tornado Warnings in Ohio, 2011 Every tornado warning in 2011 Tornadoes 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.