Alert archive / Ohio / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 21, NWS Northern Indiana

May 14, 20184 counties in Ohio; DeKalb County, Steuben County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at May 14, 2018, 11:00 PM EDT for 4 counties in Ohio; DeKalb County, Steuben County, Indiana. It was in force for 45 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 14, 2018, 11:00 PM EDT (03:00 UTC)
Expired
May 14, 2018, 11:45 PM EDT
In force
45 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Hail
1.75 in
Wind
60.0 mph

Counties DeKalb County, IN, Steuben County, IN, Defiance County, OH, Fulton County, OH, Henry County, OH, Williams County, OH

The radar

The Northern Indiana radar (KIWX), 100 km from the middle of the area, began a volume at 03:00 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 nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 3.0 hours before the alert went out and 162 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, Detroit, MI at 00:00Z on 2018-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 244 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, Detroit, MI at 00:00Z on 2018-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -24 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
244 J/kg
Mixed-layer CIN
-129 J/kg
Mixed-layer LCL
1119 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
-24 m²/s²
0-3 km storm-relative helicity
-71 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

574 
WUUS53 KIWX 150300
SVRIWX
INC033-151-OHC039-051-069-171-150345-
/O.NEW.KIWX.SV.W.0021.180515T0300Z-180515T0345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
1100 PM EDT MON MAY 14 2018

The National Weather Service in Northern Indiana  has issued a

* Severe Thunderstorm Warning for...
  Southeastern Steuben County in northeastern Indiana...
  De Kalb County in northeastern Indiana...
  Northern Defiance County in northwestern Ohio...
  Northwestern Henry County in northwestern Ohio...
  Western Fulton County in northwestern Ohio...
  Williams County in northwestern Ohio...

* Until 1145 PM EDT

* At 1100 PM EDT, a severe thunderstorm was located near Waterloo, or
  near Auburn, moving east at 45 mph.

  HAZARD...Golf ball size hail and 60 mph wind gusts. 

  SOURCE...Public. 

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees. 

* Locations impacted include...
  Auburn, Napoleon, Bryan, Wauseon, Garrett, Archbold, Montpelier,
  Butler, Waterloo, Edgerton, West Unity, Hamilton, Pioneer, Stryker,
  Fayette, Edon, Holiday City, Edgerton In Williams County, Columbia
  and West Jefferson.

This includes the following highways...
 Interstate 69 in Indiana between mile markers 326 and 337.
 Interstate 80 in Indiana near mile marker 156.
 Interstate 80 in Ohio between mile markers 0 and 38.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows!

&&

LAT...LON 4136 8403 4131 8510 4145 8513 4169 8472
      4170 8455 4171 8410
TIME...MOT...LOC 0300Z 253DEG 39KT 4139 8500 

HAIL...1.75IN
WIND...60MPH
 
$$

PBM
2 follow-up statements
681 
WWUS53 KIWX 150326
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
1126 PM EDT MON MAY 14 2018

INC033-151-OHC051-069-150336-
/O.CAN.KIWX.SV.W.0021.000000T0000Z-180515T0345Z/
Steuben IN-De Kalb IN-Henry OH-Fulton OH-
1126 PM EDT MON MAY 14 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN STEUBEN...DE
KALB...NORTHWESTERN HENRY AND WESTERN FULTON COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4133 8480 4155 8481 4163 8470 4170 8440
      4162 8440 4162 8438 4151 8438 4151 8436
      4135 8433
TIME...MOT...LOC 0326Z 261DEG 38KT 4141 8471 

$$

OHC039-171-150345-
/O.CON.KIWX.SV.W.0021.000000T0000Z-180515T0345Z/
Defiance OH-Williams OH-
1126 PM EDT MON MAY 14 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT
FOR NORTHERN DEFIANCE AND WILLIAMS COUNTIES...

At 1126 PM EDT, a severe thunderstorm was located near Edgerton, or 8
miles north of Hicksville, moving east at 45 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Public. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Bryan, Montpelier, Edgerton, West Unity, Stryker, Edon, Holiday City,
Edgerton In Williams County, West Jefferson, Pulaski, Farmer, Ney,
Blakeslee, Evansport, Alvordton, Williams Center, Melbern, Hallock
and Kunkle.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.

&&

LAT...LON 4133 8480 4155 8481 4163 8470 4170 8440
      4162 8440 4162 8438 4151 8438 4151 8436
      4135 8433
TIME...MOT...LOC 0326Z 261DEG 38KT 4141 8471 

HAIL...1.00IN
WIND...60MPH
 
$$

PBM
666 
WWUS53 KIWX 150346
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
1146 PM EDT MON MAY 14 2018

OHC039-171-150355-
/O.EXP.KIWX.SV.W.0021.000000T0000Z-180515T0345Z/
Defiance OH-Williams OH-
1146 PM EDT MON MAY 14 2018

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN DEFIANCE AND WILLIAMS
COUNTIES HAS EXPIRED...
                
The storm which prompted the warning has weakened below severe 
limits, and no longer poses an immediate threat to life or property. 
Nickel size hail and wind gusts to 30 mph are still possible with 
this storm, however.  

LAT...LON 4133 8480 4155 8481 4163 8470 4170 8440
      4162 8440 4162 8438 4151 8438 4151 8436
      4135 8433
TIME...MOT...LOC 0345Z 253DEG 39KT 4147 8447 

$$

PBM

The office that day

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

IssuedProductOfficeCountiesLasted
May 14, 10:43 PM EDTSevere Thunderstorm WarningIWXDefiance, Williams47 min
May 14, 10:56 PM EDTSpecial Weather StatementIWXHenry34 min
May 14, 11:01 PM EDTSevere Thunderstorm WarningIWXHenry44 min
May 14, 11:44 PM EDTSpecial Weather StatementIWXFulton46 min
May 14, 8:37 PM EDTSpecial Weather StatementIWXLaPorte38 min
May 14, 8:51 PM EDTSpecial Weather StatementIWXElkhart, Saint Joseph24 min
May 14, 9:22 PM EDTSevere Thunderstorm WarningIWXElkhart, Marshall, Saint Joseph38 min
May 14, 9:57 PM EDTSpecial Weather StatementIWXLaGrange, Noble48 min
May 14, 10:28 PM EDTSpecial Weather StatementIWXDeKalb, Noble32 min
May 15, 12:10 AM EDTAreal Flood AdvisoryIWXElkhart, LaPorte, Saint Joseph6 hr
May 15, 8:36 AM EDTRiver Flood WarningIWXLaPorte, Saint Joseph, Starke14 hr
May 15, 8:36 AM EDTRiver Flood WarningIWXElkhart37 hr
May 15, 8:36 AM EDTRiver Flood WarningIWXElkhart, Saint Joseph4 days
May 15, 1:17 PM EDTSpecial Weather StatementIWXCass43 min
May 15, 2:07 PM EDTSpecial Weather StatementIWXGrant53 min
May 15, 2:25 PM EDTSpecial Weather StatementIWXGrant35 min
May 15, 2:35 PM EDTSevere Thunderstorm WarningIWXGrant25 min
May 15, 3:04 PM EDTSpecial Weather StatementIWXBlackford, Jay26 min
May 15, 3:34 PM EDTSpecial Weather StatementIWXJay41 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2018Severe Thunderstorm Warnings in Indiana, 2018Every severe thunderstorm warning in 2018

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.