Alert archive / Ohio / Tornado Warnings in 2011

Tornado Warning 4, NWS Northern Indiana

April 27, 2011Allen County, Van Wert County, Ohio

NWS Northern Indiana issued this tornado warning at Apr 27, 2011, 11:55 PM EDT for Allen County, Van Wert County, Ohio. It was in force for 36 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: Apr 27, 2011, 11:55 PM EDT (03:55 UTC)
Expired: Apr 28, 2011, 12:31 AM EDT
In force: 36 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon

Counties Allen County, OH, Van Wert County, OH

The radar

The Northern Indiana radar (KIWX), 135 km from the middle of the area, began a volume at 03:55 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 27, 7:22 PM EDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 3.9 hours before the alert went out and 151 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 775 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 96 m²/s²
0-3 km storm-relative helicity: 521 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

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

954 
WFUS53 KIWX 280355
TORIWX
OHC003-161-280445-
/O.NEW.KIWX.TO.W.0004.110428T0355Z-110428T0445Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1155 PM EDT WED APR 27 2011

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN ALLEN COUNTY IN WEST CENTRAL OHIO...
  SOUTHERN VAN WERT COUNTY IN WEST CENTRAL OHIO...

* UNTIL 1245 AM EDT

* AT 1151 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE SQUALL LINE CAPABLE OF PRODUCING BRIEF RAIN-WRAPPED         
  TORNADOES IN ADDITION TO STRAIGHT LINE WIND DAMAGE. ALONG A LINE   
  EXTENDING FROM 7 MILES WEST OF OHIO CITY TO 5 MILES   WEST OF      
  CELINA TO 4 MILES NORTHEAST OF FORT RECOVERY...AND MOVING          
  NORTHEAST AT 35 MPH.

* LOCATIONS IN THE PATH OF THESE SEVERE STORMS INCLUDE...
  OHIO CITY...
  DELPHOS...
  SPENCERVILLE...
  ELIDA AND FORT SHAWNEE...

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
DULL...JONESTOWN...ELGIN...VENEDOCIA...MIDDLE POINT...MONTICELLO...
HUME...CONANT...SOUTHWORTH...NEEDMORE...KEMP AND ROUSCULP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS LINE OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND 
WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE TORNADO. FOR 
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR 
HOME OR BUSINESS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES
OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF
NO SHELTER IS AVAILABLE... LIE FLAT IN THE NEAREST DITCH OR OTHER LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

&&

LAT...LON 4063 8409 4065 8411 4065 8421 4068 8422
      4068 8444 4072 8445 4072 8479 4074 8479
      4091 8439 4091 8433 4085 8433 4086 8411
      4065 8405
TIME...MOT...LOC 0354Z 222DEG 32KT 4079 8473 4059 8464
          4047 8469

$$

3 follow-up statements

279 
WWUS53 KIWX 280410
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1210 AM EDT THU APR 28 2011

OHC003-161-280445-
/O.CON.KIWX.TO.W.0004.000000T0000Z-110428T0445Z/
VAN WERT OH-ALLEN OH-
1210 AM EDT THU APR 28 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT FOR WESTERN
ALLEN AND SOUTHEASTERN VAN WERT COUNTIES IN WEST CENTRAL OHIO...

AT 1208 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS SEVERE
STORM WAS LOCATED 5 MILES SOUTHEAST OF OHIO CITY...OR ABOUT 11 MILES
SOUTH OF VAN WERT...AND MOVING NORTHEAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  DELPHOS...SPENCERVILLE...ELIDA...MONTICELLO...ELGIN...JONESTOWN...
  VENEDOCIA...CONANT...SOUTHWORTH AND KEMP.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM EDT THURSDAY MORNING
FOR WEST CENTRAL OHIO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

&&

LAT...LON 4073 8421 4068 8427 4068 8444 4072 8445
      4073 8461 4081 8463 4091 8439 4090 8438
      4090 8433 4085 8433 4086 8412
TIME...MOT...LOC 0410Z 212DEG 40KT 4073 8453

$$


JC

530 
WWUS53 KIWX 280422
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1222 AM EDT THU APR 28 2011

OHC003-161-280445-
/O.CON.KIWX.TO.W.0004.000000T0000Z-110428T0445Z/
VAN WERT OH-ALLEN OH-
1222 AM EDT THU APR 28 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT FOR WEST
CENTRAL ALLEN AND SOUTHEASTERN VAN WERT COUNTIES IN WEST CENTRAL
OHIO...

AT 1217 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS SEVERE
STORM WAS LOCATED 10 MILES WEST OF DELPHOS...OR ABOUT 5 MILES
SOUTHEAST OF VAN WERT...AND MOVING NORTHEAST AT 45 MPH.

THIS SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF
SOUTHEASTERN VAN WERT AND WEST CENTRAL ALLEN COUNTIES.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM EDT THURSDAY MORNING
FOR WEST CENTRAL OHIO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

&&

LAT...LON 4068 8438 4068 8444 4072 8445 4074 8458
      4083 8459 4091 8439 4090 8438 4090 8433
      4085 8433 4085 8428
TIME...MOT...LOC 0421Z 212DEG 40KT 4085 8449

$$


JC

185 
WWUS53 KIWX 280431
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1231 AM EDT THU APR 28 2011

OHC003-161-280441-
/O.CAN.KIWX.TO.W.0004.000000T0000Z-110428T0445Z/
VAN WERT OH-ALLEN OH-
1231 AM EDT THU APR 28 2011

...THE TORNADO WARNING FOR WEST CENTRAL ALLEN AND SOUTHEASTERN VAN
WERT COUNTIES IN WEST CENTRAL OHIO IS CANCELLED...

AT 1230 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THAT THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAD WEAKENED
AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE...THE TORNADO WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM EDT THURSDAY MORNING
FOR WEST CENTRAL OHIO.

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 4068 8438 4068 8444 4072 8445 4074 8458
      4083 8459 4091 8439 4090 8438 4090 8433
      4085 8433 4085 8428
TIME...MOT...LOC 0431Z 212DEG 40KT 4094 8441

$$


JC

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 1:28 AM EDT	Wind Advisory	IWX	Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more	10 hr
Apr 28, 3:21 AM EDT	Areal Flood Warning	IWX	Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more	9 hr
Apr 28, 3:48 AM EDT	High Wind Warning	IWX	Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more	2 hr
Apr 28, 12:29 PM EDT	River Flood Warning	IWX	Henry	34 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.