Alert archive / Ohio / Tornado Warnings in 2011

Tornado Warning 8, NWS Northern Indiana

May 23, 2011Allen County, Ohio

NWS Northern Indiana issued this tornado warning at May 23, 2011, 7:13 PM EDT for Allen County, Ohio. It was in force for 47 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 23, 2011, 7:13 PM EDT (23:13 UTC)
Expired
May 23, 2011, 8:00 PM EDT
In force
47 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon

County Allen County, OH

The radar

The Cincinnati radar (KILN), 143 km from the middle of the area, began a volume at 23:16 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.

IssuedProductOfficeLasted
May 23, 2:15 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.2 hours before the alert went out and 142 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-pSkew-T log-p diagram, Cncnati-Daytn, OH at 12:00Z on 2011-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 170 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 2011-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 183 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
170 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
776 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
183 m²/s²
0-3 km storm-relative helicity
246 m²/s²
Significant tornado parameter
0.2
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

840 
WFUS53 KIWX 232313
TORIWX
OHC003-240000-
/O.NEW.KIWX.TO.W.0008.110523T2313Z-110524T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
713 PM EDT MON MAY 23 2011

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

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

* UNTIL 800 PM EDT

* AT 712 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 3 MILES NORTHWEST OF
  SPENCERVILLE...OR 8 MILES SOUTHWEST OF DELPHOS...AND MOVING EAST AT
  45 MPH.

* LOCATIONS IN THE PATH OF THIS SEVERE STORM INCLUDE...
  ELIDA...
  FORT SHAWNEE...
  LIMA...

THIS THUNDERSTORM HAS A HISTORY OF PRODUCING TORNADOES IN VAN WERT 
COUNTY.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE KEMP...
HUME...YODER...ROUSCULP...SLABTOWN...WESTMINSTER...LAFAYETTE AND
HARROD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

&&

LAT...LON 4064 8388 4064 8410 4065 8411 4065 8421
      4066 8422 4068 8422 4068 8437 4069 8438
      4081 8432 4080 8387 4065 8387
TIME...MOT...LOC 2313Z 277DEG 40KT 4073 8433

$$
2 follow-up statements
469 
WWUS53 KIWX 232334
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
734 PM EDT MON MAY 23 2011

OHC003-240000-
/O.CON.KIWX.TO.W.0008.000000T0000Z-110524T0000Z/
ALLEN OH-
734 PM EDT MON MAY 23 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM EDT FOR
SOUTHEASTERN ALLEN COUNTY IN WEST CENTRAL OHIO...

AT 730 PM EDT...LAW ENFORCEMENT REPORTED A TORNADO. THIS SEVERE STORM
WAS LOCATED 4 MILES WEST OF LIMA...AND MOVING EAST AT 45 MPH.

THIS SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF
SOUTHEASTERN ALLEN COUNTY...INCLUDING THE FOLLOWING LOCATIONS
WESTMINSTER...LAFAYETTE AND HARROD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

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.

&&

LAT...LON 4064 8388 4064 8410 4065 8411 4065 8421
      4066 8422 4068 8422 4080 8423 4080 8387
      4065 8387
TIME...MOT...LOC 2333Z 277DEG 40KT 4073 8413

$$
509 
WWUS53 KIWX 232358
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
758 PM EDT MON MAY 23 2011

OHC003-240008-
/O.EXP.KIWX.TO.W.0008.000000T0000Z-110524T0000Z/
ALLEN OH-
758 PM EDT MON MAY 23 2011

...THE TORNADO WARNING FOR SOUTHEASTERN ALLEN COUNTY IN WEST CENTRAL
OHIO WILL EXPIRE AT 800 PM EDT...

AT 758 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAD MOVED OUT OF
THE AREA. THEREFORE...THE TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE.

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 4064 8388 4064 8410 4065 8411 4065 8421
      4066 8422 4068 8422 4080 8423 4080 8387
      4065 8387
TIME...MOT...LOC 2358Z 277DEG 40KT 4069 8377

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 9:06 PM EDTSpecial Weather StatementIWXPaulding, Van Wert24 min
May 23, 5:40 PM EDTSevere Thunderstorm WarningIWXPaulding, Van Wert47 min
May 23, 5:59 PM EDTSevere Thunderstorm WarningIWXVan Wert46 min
May 23, 6:45 PM EDTSevere Thunderstorm WarningIWXAllen, Van Wert37 min
May 23, 6:48 PM EDTTornado WarningIWXAllen, Van Wert42 min
May 23, 7:17 PM EDTTornado WarningIWXAllen, Putnam43 min
May 23, 7:58 PM EDTAreal Flood AdvisoryIWXAllen, Putnam, Van Wert3 hr

Nearby

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