Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 41, NWS Northern Indiana

June 29, 20126 counties in Ohio

NWS Northern Indiana issued this severe thunderstorm warning at Jun 29, 2012, 3:09 PM EDT for 6 counties in Ohio. It was in force for 51 min. 15 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: Jun 29, 2012, 3:09 PM EDT (19:09 UTC)
Expired: Jun 29, 2012, 4:00 PM EDT
In force: 51 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Hail: 0.5 in
Wind: 80.0 mph

Counties Allen County, OH, Defiance County, OH, Henry County, OH, Paulding County, OH, Putnam County, OH, Van Wert County, OH

The radar

The Northern Indiana radar (KIWX), 133 km from the middle of the area, began a volume at 19:08 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
Jun 29, 3:17 PM EDT	TSTM WND DMG	Antwerp, OH	WIDESPREAD LARGE TREES DOWN. POSSIBLE STRUCTURAL DAMAGE IN TOWN.
Jun 29, 3:20 PM EDT	TSTM WND GST 59	2 Wnw Convoy, OH
Jun 29, 3:22 PM EDT	TSTM WND GST 84	Paulding, OH	MEASURED IN THE TOWN OF PAULDING
Jun 29, 3:35 PM EDT	TSTM WND GST 64	3 Nnw Convoy, OH
Jun 29, 3:36 PM EDT	TSTM WND DMG	Delphos, OH	80 FOOT PINE TREE SNAPPED 20 FEET UP. CORNER OF 7TH STREET AND MAIN STREET.
Jun 29, 3:36 PM EDT	TSTM WND DMG	Lima, OH	80 FOOT PINE TREE SNAPPED 20 FEET UP. CORNER OF 7TH STREET AND MAIN STREET.
Jun 29, 3:37 PM EDT	TSTM WND DMG	Van Wert, OH	HUNDREDS OF TREES DOWN COUNTYWIDE...WIDESPREAD POWER OUTAGES WITH ROOFS OFF OF MANY HOMES. CARS AND TRUCKS FLIPPED ACROSS PORTIONS OF THE COUNTY.
Jun 29, 3:45 PM EDT	TSTM WND DMG	1 Nw Lima, OH	MULTIPLE TREES DOWN ALONG KEMP RD. SHINGLES BLOWN OFF MANY ROOFS IN THE AREA.
Jun 29, 3:45 PM EDT	TSTM WND GST 64	3 Nnw Convoy, OH
Jun 29, 3:49 PM EDT	TSTM WND DMG	4 W Lima, OH	BOAT DRIVEN INTO ROCKS. BOAT WAS TAKING ON WATER. MAN WAS RESCUED BY THE FIRE DEPARTMENT. ON BRESLER LAKE.
Jun 29, 3:50 PM EDT	TSTM WND DMG	2 Nw Rice, OH	REPORT OF A SECOND STORY COLLAPSE OF A HOME AND A BLOWN DOWN BARN IN THE EXTREME SOUTHEAST PORTION OF DEFIANCE COUNTY. TIME ESTIMATED FROM RADAR.
Jun 29, 3:55 PM EDT	TSTM WND DMG	1 S Ottawa, OH	ROOF BLOWN OFF FACTORY. TREES UPROOTED.
Jun 29, 3:55 PM EDT	TSTM WND GST 78	Columbus Grove, OH	SWING SET DESTROYED
Jun 29, 4:00 PM EDT	TSTM WND GST 60	Lima, OH	POWER LINES AND SMALL LIMBS DOWN THROUGHOUT TOWN
Jun 29, 4:10 PM EDT	TSTM WND GST 64	3 Se New Bavaria, 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
Jun 29, 11:49 AM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.2 hours before the alert went out and 157 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: 3674 J/kg
Mixed-layer CIN: -139 J/kg
Mixed-layer LCL: 979 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: -59 m²/s²
0-3 km storm-relative helicity: -13 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 9.4

Open this sounding in Storm Lab

The text

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

229 
WUUS53 KIWX 291909
SVRIWX
OHC003-039-069-125-137-161-292000-
/O.NEW.KIWX.SV.W.0041.120629T1909Z-120629T2000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
309 PM EDT FRI JUN 29 2012

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN ALLEN COUNTY IN WEST CENTRAL OHIO...
  SOUTHERN DEFIANCE COUNTY IN NORTHWEST OHIO...
  PAULDING COUNTY IN WEST CENTRAL OHIO...
  VAN WERT COUNTY IN WEST CENTRAL OHIO...
  SOUTH CENTRAL HENRY COUNTY IN NORTHWEST OHIO...
  PUTNAM COUNTY IN WEST CENTRAL OHIO...

* UNTIL 400 PM EDT

* AT 304 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS
  IN EXCESS OF 80 MPH. THESE SEVERE STORMS WERE LOCATED ALONG A      
  LINE EXTENDING FROM 27 MILES NORTHWEST OF ANTWERP TO 12 MILES      
  WEST OF PAYNE TO 24 MILES SOUTHWEST OF OHIO CITY...AND             
  MOVING EAST AT 65 MPH.

* LOCATIONS IN THE PATH OF SEVERE THUNDERSTORMS INCLUDE...
  PAYNE...ANTWERP AND CONVOY...
  PAULDING...VAN WERT AND OHIO CITY...
  SPENCERVILLE AND DEFIANCE...
  DELPHOS...OTTOVILLE AND CONTINENTAL...
  ELIDA...

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
WORSTVILLE...TIPTON...MIDDLEBURY...MARK CENTER...BRICETON...SCOTT...
LATTY...HAVILAND...CECIL...CAVETT...THE BEND AND SHERWOOD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS LINE OF
SEVERE THUNDERSTORMS. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH
LITTLE OR NO WARNING. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE
TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR
SMALL INTERIOR ROOM.

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF
80 MPH. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS!

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN NORTHERN INDIANA.

&&

LAT...LON 4064 8404 4064 8410 4065 8411 4065 8421
      4068 8422 4068 8437 4071 8445 4072 8445
      4072 8449 4084 8480 4135 8472 4127 8400
TIME...MOT...LOC 1908Z 269DEG 58KT 4154 8487 4104 8487
          4054 8487
WIND...HAIL 80MPH <.50IN

$$

MCS

1 follow-up statement

494 
WWUS53 KIWX 291946
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
346 PM EDT FRI JUN 29 2012

OHC003-039-069-125-137-161-292000-
/O.CON.KIWX.SV.W.0041.000000T0000Z-120629T2000Z/
PUTNAM OH-HENRY OH-VAN WERT OH-PAULDING OH-DEFIANCE OH-ALLEN OH-
346 PM EDT FRI JUN 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR WESTERN ALLEN...SOUTHEASTERN DEFIANCE...EASTERN PAULDING...
EASTERN VAN WERT...SOUTH CENTRAL HENRY AND PUTNAM COUNTIES...

AT 341 PM EDT...LAW ENFORCEMENT REPORTED A LINE OF SEVERE
THUNDERSTORMS  PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 80 MPH. THESE
SEVERE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 20 MILES NORTH
OF HOLGATE TO 4 MILES NORTH OF KALIDA TO 10 MILES SOUTH OF FORT
SHAWNEE...AND MOVING EAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  OTTAWA...SLABTOWN...HAMLER...GALLUP AND PRENTISS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

INTENSE SQUALL LINES CAN OCCASIONALLY PRODUCE BRIEF TORNADOES IN
ADDITION TO WIDESPREAD SIGNIFICANT WIND DAMAGE. ALTHOUGH NOT
IMMEDIATELY LIKELY...FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON
THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. THESE STORMS HAVE THE
POTENTIAL TO CAUSE SERIOUS INJURY AND SIGNIFICANTDAMAGE TO PROPERTY.

THIS LINE OF SEVERE THUNDERSTORMS HAS A HISTORY OF PRODUCING
DESTRUCTIVE WINDS IN EXCESS OF 80 MPH AND. SEEK SHELTER NOW INSIDE A
STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN NORTHERN INDIANA.

&&

LAT...LON 4132 8451 4127 8400 4064 8404 4064 8410
      4065 8411 4065 8421 4068 8422 4068 8437
      4071 8445 4072 8445 4074 8455 4075 8456
TIME...MOT...LOC 1946Z 269DEG 58KT 4155 8405 4105 8406
          4055 8407
WIND...HAIL 80MPH <.50IN

$$

MCS

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 29, 4:13 AM EDT	Heat Advisory	IWX	Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more	11 hr
Jun 29, 2:48 PM EDT	Severe Thunderstorm Warning	IWX	Defiance, Paulding, Van Wert	27 min
Jun 29, 2:54 PM EDT	Severe Thunderstorm Warning	IWX	Van Wert	51 min
Jun 29, 3:15 PM EDT	Tornado Warning	IWX	Paulding, Van Wert	30 min
Jun 29, 3:36 PM EDT	Special Weather Statement	IWX	Defiance, Henry	39 min
Jun 29, 3:44 PM EDT	Severe Thunderstorm Warning	IWX	Allen, Henry, Putnam	46 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2012 Every severe thunderstorm warning 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.