Alert archive / Ohio / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 151, NWS Northern Indiana

July 11, 2011Allen County, Van Wert County, Ohio

NWS Northern Indiana issued this severe thunderstorm warning at Jul 11, 2011, 12:41 PM EDT for Allen County, Van Wert County, Ohio. It was in force for 49 min. 2 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
Jul 11, 2011, 12:41 PM EDT (16:41 UTC)
Expired
Jul 11, 2011, 1:30 PM 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, Van Wert County, OH

The radar

The Northern Indiana radar (KIWX), 142 km from the middle of the area, began a volume at 16:43 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
Jul 11, 12:57 PM EDTTSTM WND GST 623 Ne Yoder, OH54 KT GUST MEASURED AT THE LIMA ALLEN COUNTY AIRPORT.
Jul 11, 1:00 PM EDTTSTM WND GST 60Nw Lima, OHSMALL TREE BRANCHES DOWN.

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
Jul 11, 10:16 AM EDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 4.7 hours before the alert went out and 146 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 2011-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 95 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 2011-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 133 square meters per square second.193958Sfc1 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
95 J/kg
Mixed-layer CIN
-371 J/kg
Mixed-layer LCL
1367 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
133 m²/s²
0-3 km storm-relative helicity
143 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

834 
WUUS53 KIWX 111641
SVRIWX
OHC003-161-111730-
/O.NEW.KIWX.SV.W.0151.110711T1641Z-110711T1730Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1241 PM EDT MON JUL 11 2011

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ALLEN COUNTY IN WEST CENTRAL OHIO...
  SOUTHERN VAN WERT COUNTY IN WEST CENTRAL OHIO...

* UNTIL 130 PM EDT

* AT 1238 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 26 MILES NORTHEAST OF ELIDA TO 15 MILES NORTHEAST OF
  ELIDA TO 5 MILES NORTHWEST OF SPENCERVILLE TO 7 MILES WEST OF OHIO
  CITY...AND MOVING EAST AT 55 MPH.

* LOCATIONS IN THE PATH OF SEVERE THUNDERSTORMS INCLUDE...
  SPENCERVILLE AND LIMA...
  FORT SHAWNEE...

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
SLABTOWN...KEMP...YODER...LAFAYETTE...MONTICELLO...WESTMINSTER...
ROUSCULP...HUME AND HARROD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS LINE OF SEVERE THUNDERSTORMS. IF YOU ARE IN THE
PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS IN EXCESS OF 60 MPH...
ALONG WITH DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD
MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT 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 8394 4064 8410 4065 8411 4065 8421
      4068 8422 4068 8444 4072 8445 4072 8474
      4074 8480 4083 8460 4080 8387 4065 8387
TIME...MOT...LOC 1641Z 287DEG 52KT 4110 8391 4094 8395
          4074 8437 4075 8469
WIND...HAIL 60MPH <.50IN

$$
2 follow-up statements
710 
WWUS53 KIWX 111707
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
107 PM EDT MON JUL 11 2011

OHC161-111718-
/O.CAN.KIWX.SV.W.0151.000000T0000Z-110711T1730Z/
VAN WERT OH-
107 PM EDT MON JUL 11 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN VAN WERT COUNTY IS
CANCELLED...

AT 106 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE LINE OF SEVERE THUNDERSTORMS WHICH PROMPTED THE WARNING HAD  
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 4064 8394 4064 8410 4065 8411 4065 8421
      4068 8422 4068 8439 4070 8439 4081 8406
      4080 8387 4065 8387
TIME...MOT...LOC 1708Z 093DEG 39KT 4101 8364 4085 8368
          4066 8395 4067 8443

$$

OHC003-111730-
/O.CON.KIWX.SV.W.0151.000000T0000Z-110711T1730Z/
ALLEN OH-
107 PM EDT MON JUL 11 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM EDT
FOR SOUTHERN ALLEN COUNTY IN WEST CENTRAL OHIO...

AT 106 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 32 MILES NORTHEAST OF LIMA TO 25 MILES EAST OF
LIMA TO 11 MILES EAST OF FORT SHAWNEE TO 4 MILES SOUTHWEST OF
SPENCERVILLE...AND MOVING WEST AT 45 MPH.

LOCATIONS IN THE PATH OF SEVERE THUNDERSTORMS INCLUDE...
  FORT SHAWNEE...
  LIMA...
  SPENCERVILLE...

OTHER LOCATIONS IMPACTED BY THIS LINE OF SEVERE THUNDERSTORMS INCLUDE
WESTMINSTER...LAFAYETTE...YODER...SLABTOWN...KEMP AND CONANT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS LINE OF SEVERE THUNDERSTORMS. IF YOU ARE IN THE
PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS IN EXCESS OF 60 MPH...
ALONG WITH DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD
MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT 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 8394 4064 8410 4065 8411 4065 8421
      4068 8422 4068 8439 4070 8439 4081 8406
      4080 8387 4065 8387
TIME...MOT...LOC 1708Z 093DEG 39KT 4101 8364 4085 8368
          4066 8395 4067 8443
WIND...HAIL 60MPH <.50IN

$$
170 
WWUS53 KIWX 111724
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
124 PM EDT MON JUL 11 2011

OHC003-111734-
/O.EXP.KIWX.SV.W.0151.000000T0000Z-110711T1730Z/
ALLEN OH-
124 PM EDT MON JUL 11 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN ALLEN COUNTY IN WEST
CENTRAL OHIO WILL EXPIRE AT 130 PM EDT...

AT 124 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE LINE OF SEVERE THUNDERSTORMS WHICH PROMPTED THE WARNING HAD MOVED
OUT OF THE AREA. THEREFORE...THE SEVERE THUNDERSTORM WARNING WILL BE 
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 8394 4064 8410 4065 8411 4065 8421
      4068 8422 4068 8439 4070 8439 4081 8406
      4080 8387 4065 8387
TIME...MOT...LOC 1724Z 093DEG 39KT 4102 8387 4086 8391
          4066 8418 4067 8466

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 4:25 AM EDTHeat AdvisoryIWXAllen, Van Wert16 hr
Jul 11, 11:19 AM EDTSevere Thunderstorm WarningIWXDefiance, Fulton, Henry, Williams56 min
Jul 11, 11:39 AM EDTSevere Thunderstorm WarningIWXDefiance, Paulding51 min
Jul 11, 12:06 PM EDTSevere Thunderstorm WarningIWXDefiance, Fulton, Henry39 min
Jul 11, 12:09 PM EDTSevere Thunderstorm WarningIWXAllen, Paulding, Putnam, Van Wert66 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.