Alert archive / Ohio / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 13, NWS Northern Indiana

April 19, 20118 counties in Ohio

NWS Northern Indiana issued this severe thunderstorm warning at Apr 19, 2011, 11:31 PM EDT for 8 counties in Ohio. It was in force for 49 min. 9 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 19, 2011, 11:31 PM EDT (03:31 UTC)
Expired: Apr 20, 2011, 12:20 AM EDT
In force: 49 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Hail: 0.5 in
Wind: 60.0 mph

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

The radar

The Northern Indiana radar (KIWX), 118 km from the middle of the area, began a volume at 03:33 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 19, 11:35 PM EDT	TSTM WND DMG	2 W Van Wert, OH	HEADER BLOWN OVER HOUSE. MULTIPLE PINE TREES SNAPPED. WINDOWS BLOWN OUT OF RESIDENCE AND GARAGE DOOR BLOWN IN. TIME ESTIMATED FROM RADAR.
Apr 19, 11:35 PM EDT	TORNADO	2 W Van Wert, OH	THE NATIONAL WEATHER SERVICE WITH THE ASSISTANCE OF THE VAN WERT COUNTY EMERGENCY MANAGER HAS CONFIRMED AN EFO TORNADO. THIS TORNADO HAD AN APPROXIMATE PATH LENGTH OF 0.5 MILES WITH A MAXIMUM WIDTH OF 25 YARDS. WINDS WERE ESTIMATED AT 80 TO 85 MPH. THE TORNADO
Apr 19, 11:40 PM EDT	TSTM WND DMG	Converse, OH	BARN DESTROYED WITH DEBRIS ACROSS CONVERSE ROAD
Apr 19, 11:40 PM EDT	TORNADO	1 S Monticello, OH	AN EF1 TORNADO OCCURRED IN VAN WERT COUNTY OHIO AND CONTINUED INTO ALLEN COUNTY OHIO. THIS TORNADO HAD AN APPROXIMATE PATH LENGTH OF 4 MILES AND MAXIMUM WIDTH OF ONE HALF MILE. WINDS WERE ESTIMATED TO BE IN THE 100 TO 105 MPH RANGE. THIS TORNADO BEGAN SOUTH OF
Apr 19, 11:55 PM EDT	TSTM WND DMG	Elida, OH	24 FOOT LONG TRAVEL TRAILER DESTOYED...3 LARGE TREES DOWN...POWER LINES DOWN...ROOF DAMAGE...GARAGE LEVELED
Apr 19, 11:58 PM EDT	TORNADO	2 N Cairo, OH	THE NATIONAL WEATHER SERVICE HAS CONFIRMED AN EF1 TORNADO IN ALLEN COUNTY OHIO. THE TORNADO BEGAN APPROXIMATELY 2 MILES N OF CAIRO. THE TORNADO HAD A PATH LENGTH OF ONE HALF MILE AND MAX WIDTH OF 100 YDS. SUBSTANTIAL DAMAGE TO A HOMESTEAD WAS OBSERVED INCLUDIN
Apr 20, 12:01 AM EDT	TSTM WND DMG	1 N Cairo, OH	BARN DESTROYED...TREES UPROOTED...ROOF TORN OFF HOUSE
Apr 20, 12:06 AM EDT	TSTM WND GST 52	3 Ne Yoder, OH
Apr 20, 12:07 AM EDT	TSTM WND DMG	2 Ese Elery, OH	TREES DOWN AT ST RT 281 WEST OF ST RT 109. ALSO DOWNED POWER LINES IN THE ST RT 281 AND CR 18 AREA. TIME ESTIMATED FROM RADAR.

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, 9:37 PM EDT	Severe Thunderstorm Watch	SPC	3 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 3.5 hours before the alert went out and 177 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: 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

Open this sounding in Storm Lab

The text

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

536 
WUUS53 KIWX 200331
SVRIWX
OHC003-039-051-069-125-137-161-171-200430-
/O.NEW.KIWX.SV.W.0013.110420T0331Z-110420T0430Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1131 PM EDT TUE APR 19 2011

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

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

* UNTIL 1230 AM EDT

* AT 1129 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE SEVERE STORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM EDGERTON TO ANTWERP TO 5 MILES SOUTHWEST OF OHIO
  CITY...AND MOVING EAST AT 75 MPH.

* LOCATIONS IN THE PATH OF SEVERE THUNDERSTORMS INCLUDE...
  STRYKER...ARCHBOLD AND SPENCERVILLE...
  FORT SHAWNEE...ELIDA AND HOLGATE...
  WAUSEON...LIMA AND NAPOLEON...
  DELTA...BLUFFTON AND MCCLURE...

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
HALLOCK...MONTICELLO...PULASKI...BRUNERSBURG...NEY...ROSELMS...
OAKWOOD...MANDALE...CHARLOE...ARTHUR...MELROSE AND GROVER HILL.

PRECAUTIONARY/PREPARDNESS ACTIONS...

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 4065 8421 4068 8422 4068 8444 4072 8445
      4072 8477 4118 8476 4141 8480 4155 8479
      4160 8387 4064 8388
TIME...MOT...LOC 0331Z 270DEG 68KT 4149 8471 4118 8464
          4073 8465
WIND...HAIL 60MPH <.50IN

$$


JC

2 follow-up statements

893 
WWUS53 KIWX 200353
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1153 PM EDT TUE APR 19 2011

OHC003-039-051-069-125-137-161-171-200430-
/O.CON.KIWX.SV.W.0013.000000T0000Z-110420T0430Z/
PUTNAM OH-HENRY OH-VAN WERT OH-PAULDING OH-DEFIANCE OH-WILLIAMS OH-
FULTON OH-ALLEN OH-
1153 PM EDT TUE APR 19 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM EDT
FOR SOUTHERN FULTON...SOUTHEASTERN WILLIAMS...EASTERN DEFIANCE AND
HENRY COUNTIES IN NORTHWEST OHIO...AND ALLEN...EASTERN PAULDING...
EASTERN VAN WERT AND PUTNAM COUNTIES IN WEST CENTRAL OHIO...

AT 1150 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE SEVERE STORMS WERE LOCATED ALONG A
LINE EXTENDING FROM ARCHBOLD TO CONTINENTAL TO 6 MILES EAST OF
SPENCERVILLE...AND MOVING EAST AT 70 MPH.

LOCATIONS IN THE PATH OF SEVERE THUNDERSTORMS INCLUDE...
  WAUSEON...NAPOLEON AND OTTAWA...
  DELTA...BLUFFTON AND MCCLURE...
  SWANTON...

OTHER LOCATIONS IMPACTED BY THIS LINE OF SEVERE THUNDERSTORMS INCLUDE
WESTMINSTER...YODER...SLABTOWN...ROCKPORT...BEAVERDAM...GALLUP...
ELERY...MALINTA...HAMLER AND PRENTISS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4065 8421 4068 8422 4069 8438 4074 8440
      4118 8448 4156 8453 4160 8387 4064 8388
TIME...MOT...LOC 0353Z 267DEG 62KT 4155 8426 4110 8420
          4071 8418
WIND...HAIL 60MPH <.50IN

$$


JC

063 
WWUS53 KIWX 200420
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1220 AM EDT WED APR 20 2011

OHC003-039-051-069-125-137-161-171-200430-
/O.CAN.KIWX.SV.W.0013.000000T0000Z-110420T0430Z/
PUTNAM OH-HENRY OH-VAN WERT OH-PAULDING OH-DEFIANCE OH-WILLIAMS OH-
FULTON OH-ALLEN OH-
1220 AM EDT WED APR 20 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN FULTON...SOUTHEASTERN
WILLIAMS...EASTERN DEFIANCE AND HENRY COUNTIES IN NORTHWEST OHIO...
AND ALLEN...EASTERN PAULDING...EASTERN VAN WERT AND PUTNAM COUNTIES 
IN WEST CENTRAL OHIO IS CANCELLED.

AT 1216 AM EDT/1116 PM CDT/...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED THAT THE LINE OF SEVERE THUNDERSTORMS WHICH PROMPTED THE
WARNING HAD MOVED OUT OF THE AREA AND NO LONGER POSES AN IMMEDIATE
THREAT TO LIFE OR PROPERTY. THEREFORE...THE SEVERE THUNDERSTORM
WARNING HAS BEEN CANCELLED.

PRECAUTIONARY/PREPARDNESS ACTIONS...

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 4065 8421 4068 8422 4069 8438 4074 8440
      4118 8448 4156 8453 4160 8387 4064 8388
TIME...MOT...LOC 0420Z 267DEG 62KT 4146 8361 4101 8358
          4062 8358

$$


JC

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 20, 1:35 AM EDT	River Flood Watch	IWX	Defiance	3 days
Apr 20, 10:26 AM EDT	River Flood Warning	IWX	Paulding	20 hr
Apr 20, 10:26 AM EDT	River Flood Warning	IWX	Defiance, Fulton, Williams	15 days

Nearby

Severe Thunderstorm Warnings in Ohio, 2011 Every severe thunderstorm warning 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.