Alert archive / Ohio / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 33, NWS Northern Indiana

May 10, 20114 counties in Ohio

NWS Northern Indiana issued this severe thunderstorm warning at May 10, 2011, 5:48 PM EDT for 4 counties in Ohio. It was in force for 57 min. 1 report 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
May 10, 2011, 5:48 PM EDT (21:48 UTC)
Expired
May 10, 2011, 6:45 PM EDT
In force
57 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

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

The radar

The Northern Indiana radar (KIWX), 126 km from the middle of the area, began a volume at 21:50 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

TimeReportWhereRemark
May 10, 5:55 PM EDTHAIL 11 Se Cavett, 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.

IssuedProductOfficeLasted
May 10, 3:31 PM EDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 9.8 hours before the alert went out and 167 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 2011-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 9 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 2011-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 194 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
9 J/kg
Mixed-layer CIN
-487 J/kg
Mixed-layer LCL
1473 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
194 m²/s²
0-3 km storm-relative helicity
252 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.2

Open this sounding in Storm Lab

The text

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

558 
WUUS53 KIWX 102148
SVRIWX
OHC003-125-137-161-102245-
/O.NEW.KIWX.SV.W.0033.110510T2148Z-110510T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
548 PM EDT TUE MAY 10 2011

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN ALLEN COUNTY IN WEST CENTRAL OHIO...
  SOUTH CENTRAL PAULDING COUNTY IN WEST CENTRAL OHIO...
  NORTHERN VAN WERT COUNTY IN WEST CENTRAL OHIO...
  SOUTHWESTERN PUTNAM COUNTY IN WEST CENTRAL OHIO...

* UNTIL 645 PM EDT

* AT 546 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  SEVERE STORM WAS LOCATED 6 MILES NORTH OF VAN WERT...AND MOVING
  SOUTHEAST AT 25 MPH.

* LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
  VAN WERT...
  DELPHOS...
  ELIDA...

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
WETZEL...MIDDLE POINT...OTTOVILLE...FORT JENNINGS...SOUTHWORTH...
NEEDMORE...RUSHMORE...RIMER...CONANT...GOMER...VAUGHNSVILLE AND KEMP.

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 4090 8407 4068 8420 4089 8471 4102 8463
TIME...MOT...LOC 2148Z 293DEG 21KT 4094 8459
WIND...HAIL <50MPH 1.00IN

$$
4 follow-up statements
032 
WWUS53 KIWX 102158
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
558 PM EDT TUE MAY 10 2011

OHC125-102207-
/O.CAN.KIWX.SV.W.0033.000000T0000Z-110510T2245Z/
PAULDING OH-
558 PM EDT TUE MAY 10 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL PAULDING COUNTY
IS CANCELLED...

AT 555 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAD WEAKENED OR
MOVED OUT AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY. THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN
CANCELLED.

LAT...LON 4068 8420 4087 8466 4099 8457 4099 8449
      4090 8407
TIME...MOT...LOC 2157Z 293DEG 21KT 4092 8453

$$

OHC003-137-161-102245-
/O.CON.KIWX.SV.W.0033.000000T0000Z-110510T2245Z/
PUTNAM OH-VAN WERT OH-ALLEN OH-
558 PM EDT TUE MAY 10 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR WESTERN ALLEN...NORTHEASTERN VAN WERT AND SOUTHWESTERN PUTNAM
COUNTIES IN WEST CENTRAL OHIO...

AT 555 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE 
THUNDERSTORM PRODUCING QUARTER SIZE HAIL. THIS SEVERE STORM WAS 
LOCATED 5 MILES NORTHEAST OF VAN WERT...AND MOVING SOUTHEAST AT 25 
MPH. HAIL ONE INCH IN DIAMETER WAS REPORTED A HALF MILE SOUTHEAST OF 
CAVETT.

LOCATIONS IMPACTED INCLUDE...
  DELPHOS...ELIDA...WETZEL...MIDDLE POINT...OTTOVILLE...FORT
  JENNINGS...SOUTHWORTH...NEEDMORE...RUSHMORE AND RIMER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SEVERE THUNDERSTORM. IF YOU ARE IN THE PATH...
PREPARE IMMEDIATELY FOR QUARTER SIZE HAIL...ALONG WITH DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 4068 8420 4087 8466 4099 8457 4099 8449
      4090 8407
TIME...MOT...LOC 2157Z 293DEG 21KT 4092 8453
WIND...HAIL <50MPH 1.00IN

$$
775 
WWUS53 KIWX 102211
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
611 PM EDT TUE MAY 10 2011

OHC003-137-161-102245-
/O.CON.KIWX.SV.W.0033.000000T0000Z-110510T2245Z/
PUTNAM OH-VAN WERT OH-ALLEN OH-
611 PM EDT TUE MAY 10 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR WESTERN ALLEN...NORTHEASTERN VAN WERT AND SOUTHWESTERN PUTNAM
COUNTIES IN WEST CENTRAL OHIO...

AT 609 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL. THIS SEVERE STORM WAS LOCATED NEAR DELPHOS...AND MOVING EAST AT
25 MPH.

LOCATIONS IMPACTED INCLUDE...
  DELPHOS...ELIDA...FORT JENNINGS...SOUTHWORTH...NEEDMORE...
  RUSHMORE...RIMER...CONANT...GOMER AND VAUGHNSVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SEVERE THUNDERSTORM. IF YOU ARE IN THE PATH...
PREPARE IMMEDIATELY FOR QUARTER SIZE HAIL...ALONG WITH DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 4099 8448 4090 8407 4068 8420 4084 8456
TIME...MOT...LOC 2210Z 291DEG 23KT 4087 8437
WIND...HAIL <50MPH 1.00IN

$$
358 
WWUS53 KIWX 102227
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
627 PM EDT TUE MAY 10 2011

OHC137-161-102235-
/O.CAN.KIWX.SV.W.0033.000000T0000Z-110510T2245Z/
PUTNAM OH-VAN WERT OH-
627 PM EDT TUE MAY 10 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN VAN WERT AND
SOUTHWESTERN PUTNAM COUNTIES IS CANCELLED...

AT 618 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAD WEAKENED OR
MOVED OUT AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY. THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN
CANCELLED.

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 4077 8415 4068 8420 4077 8439 4082 8439
      4078 8415
TIME...MOT...LOC 2225Z 293DEG 24KT 4077 8433

$$

OHC003-102245-
/O.CON.KIWX.SV.W.0033.000000T0000Z-110510T2245Z/
ALLEN OH-
627 PM EDT TUE MAY 10 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR WEST CENTRAL ALLEN COUNTY IN WEST CENTRAL OHIO...

AT 618 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE 
HAIL. THIS SEVERE STORM WAS LOCATED 10 MILES WEST OF ELIDA...AND 
MOVING SOUTHEAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
  ELIDA...NEEDMORE...SOUTHWORTH...CONANT AND KEMP.

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 4077 8415 4068 8420 4077 8439 4082 8439
      4078 8415
TIME...MOT...LOC 2225Z 293DEG 24KT 4077 8433
WIND...HAIL <50MPH 1.00IN

$$
279 
WWUS53 KIWX 102239
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
639 PM EDT TUE MAY 10 2011

OHC003-102249-
/O.EXP.KIWX.SV.W.0033.000000T0000Z-110510T2245Z/
ALLEN OH-
639 PM EDT TUE MAY 10 2011

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL ALLEN COUNTY IN
WEST CENTRAL OHIO WILL EXPIRE AT 645 PM EDT...

AT 636 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAD MOVED OUT OF
THE AREA. THEREFORE...THE SEVERE THUNDERSTORM 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 4077 8415 4068 8420 4077 8439 4082 8439
      4078 8415
TIME...MOT...LOC 2239Z 293DEG 24KT 4073 8422

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 4:41 AM EDTSpecial Weather StatementIWXPaulding34 min
May 10, 7:03 AM EDTSpecial Weather StatementIWXFulton42 min
May 10, 7:48 AM EDTSpecial Weather StatementIWXFulton57 min
May 10, 5:17 PM EDTSpecial Weather StatementIWXVan Wert28 min
May 10, 5:22 PM EDTSevere Thunderstorm WarningIWXVan Wert53 min
May 10, 5:31 PM EDTSpecial Weather StatementIWXVan Wert29 min
May 10, 6:35 PM EDTSpecial Weather StatementIWXAllen25 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2011Every 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.