Alert archive / Ohio / Tornado Warnings in 2012

Tornado Warning 29, NWS Wilmington, OH

May 4, 2012Champaign County, Ohio

NWS Wilmington, OH issued this tornado warning at May 4, 2012, 5:44 PM EDT for Champaign County, Ohio. It was in force for 22 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: May 4, 2012, 5:44 PM EDT (21:44 UTC)
Expired: May 4, 2012, 6:06 PM EDT
In force: 22 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon

County Champaign County, OH

The radar

The Cincinnati radar (KILN), 81 km from the middle of the area, began a volume at 21:46 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, 9.7 hours before the alert went out and 80 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: 476 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 540 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 44 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.

487 
WFUS51 KILN 042144
TORILN
OHC021-042215-
/O.NEW.KILN.TO.W.0029.120504T2144Z-120504T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
544 PM EDT FRI MAY 4 2012

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL CHAMPAIGN COUNTY IN WEST CENTRAL OHIO...

* UNTIL 615 PM EDT.

* AT 542 PM EDT...RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF
  PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR
  WESTVILLE...MOVING EAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  URBANA...

IN ADDITION...WESTVILLE...CABLE...MINGO...KENNARD AND MUTUAL 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 1000 PM EDT
FRIDAY EVENING FOR SOUTHEAST INDIANA AND NORTHERN KENTUCKY.

&&

LAT...LON 4023 8361 4005 8358 4007 8392 4015 8394
TIME...MOT...LOC 2144Z 266DEG 13KT 4010 8386

$$

1 follow-up statement

151 
WWUS51 KILN 042206
SVSILN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
606 PM EDT FRI MAY 4 2012

OHC021-042215-
/O.CAN.KILN.TO.W.0029.000000T0000Z-120504T2215Z/
CHAMPAIGN OH-
606 PM EDT FRI MAY 4 2012

...THE TORNADO WARNING FOR CENTRAL CHAMPAIGN COUNTY HAS BEEN
CANCELLED...

DOPPLER RADAR IS INDICATING THAT THE ROTATION ASSOCIATED WITH THE 
THUNDERSTORM OVER CENTRAL CHAMPAIGN COUNTY HAS WEAKENED. 

SMALL HAIL AND GUSTY WINDS 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 4023 8361 4005 8358 4007 8392 4015 8394
TIME...MOT...LOC 2205Z 266DEG 13KT 4011 8376

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 2:43 PM EDT	Special Weather Statement	ILN	Auglaize	32 min
May 4, 2:47 PM EDT	Areal Flood Advisory	ILN	Auglaize	88 min
May 4, 3:15 PM EDT	Special Weather Statement	ILN	Hardin	30 min
May 4, 3:26 PM EDT	Areal Flood Advisory	ILN	Hardin	94 min
May 4, 4:05 PM EDT	Flash Flood Warning	ILN	Auglaize, Hardin, Logan	65 min
May 4, 4:38 PM EDT	Special Weather Statement	ILN	Butler	37 min
May 4, 4:59 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Clinton, Greene, Warren	34 min
May 4, 5:08 PM EDT	Severe Thunderstorm Warning	ILN	Greene, Montgomery	26 min
May 4, 5:11 PM EDT	Special Weather Statement	ILN	Logan	34 min
May 4, 5:39 PM EDT	Special Weather Statement	ILN	Champaign	36 min
May 4, 5:42 PM EDT	Areal Flood Advisory	ILN	Champaign, Logan, Union	2 hr
May 4, 6:17 PM EDT	Special Weather Statement	ILN	Champaign	28 min
May 4, 6:29 PM EDT	Special Weather Statement	ILN	Madison	31 min
May 4, 6:37 PM EDT	Special Weather Statement	ILN	Miami	23 min
May 4, 6:45 PM EDT	Severe Thunderstorm Warning	ILN	Fayette, Franklin, Madison, Pickaway	45 min
May 4, 6:49 PM EDT	Areal Flood Advisory	ILN	Delaware, Franklin, Madison, Union	116 min
May 4, 6:54 PM EDT	Special Weather Statement	ILN	Warren	66 min
May 4, 7:36 PM EDT	Areal Flood Advisory	ILN	Auglaize, Champaign, Clark, Greene, Logan, Madison and 4 more	5 hr
May 4, 7:50 PM EDT	Special Weather Statement	ILN	Adams	25 min
May 4, 7:53 PM EDT	Flash Flood Warning	ILN	Champaign, Clark	4 hr
May 4, 7:55 PM EDT	Areal Flood Advisory	ILN	Delaware, Fairfield, Franklin, Hocking, Licking, Madison and 2 more	4 hr

Nearby

Tornado Warnings in Ohio, 2012 Every tornado warning in 2012 Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.