Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 80, NWS Northern Indiana

July 18, 2012Kosciusko County, Marshall County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Jul 18, 2012, 6:12 PM EDT for Kosciusko County, Marshall County, Indiana. It was in force for 30 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
Jul 18, 2012, 6:12 PM EDT (22:12 UTC)
Expired
Jul 18, 2012, 6:42 PM EDT
In force
30 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Kosciusko County, IN, Marshall County, IN

The radar

The Northern Indiana radar (KIWX), 31 km from the middle of the area, began a volume at 22:14 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

Lincoln, IL (KILX), launched 12:00Z, 10.2 hours before the alert went out and 248 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, Lincoln, IL at 12:00Z on 2012-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1907 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, Lincoln, IL at 12:00Z on 2012-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.1939Sfc1 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
1907 J/kg
Mixed-layer CIN
-88 J/kg
Mixed-layer LCL
1640 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
33 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.

894 
WUUS53 KIWX 182212
SVRIWX
INC085-099-182300-
/O.NEW.KIWX.SV.W.0080.120718T2212Z-120718T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
612 PM EDT WED JUL 18 2012

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL KOSCIUSKO COUNTY IN NORTH CENTRAL INDIANA...
  SOUTHEASTERN MARSHALL COUNTY IN NORTH CENTRAL INDIANA...

* UNTIL 700 PM EDT

* AT 610 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS SEVERE STORM WAS LOCATED
  4 MILES SOUTH OF BOURBON...OR 11 MILES SOUTHEAST OF PLYMOUTH...AND
  MOVING EAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF
  SOUTHEASTERN MARSHALL AND WEST CENTRAL KOSCIUSKO COUNTIES...
  INCLUDING THE FOLLOWING LOCATIONS ETNA GREEN...HOFFMAN LAKE...
  ATWOOD AND PALESTINE.

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 4131 8590 4116 8588 4117 8606 4118 8628
      4131 8620
TIME...MOT...LOC 2212Z 279DEG 21KT 4124 8613
WIND...HAIL 60MPH 1.00IN

$$
2 follow-up statements
982 
WWUS53 KIWX 182236
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
636 PM EDT WED JUL 18 2012

INC099-182245-
/O.CAN.KIWX.SV.W.0080.000000T0000Z-120718T2300Z/
MARSHALL IN-
636 PM EDT WED JUL 18 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MARSHALL COUNTY
IS CANCELLED...

AT 635 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAD WEAKENED IN 
MARSHALL COUNTY AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR 
PROPERTY. THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN 
CANCELLED FOR MARSHALL COUNTY.

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 4131 8590 4116 8588 4117 8606 4118 8606
      4130 8606
TIME...MOT...LOC 2235Z 280DEG 38KT 4121 8593

$$

INC085-182300-
/O.CON.KIWX.SV.W.0080.000000T0000Z-120718T2300Z/
KOSCIUSKO IN-
636 PM EDT WED JUL 18 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR WEST CENTRAL KOSCIUSKO COUNTY...

AT 635 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS SEVERE STORM WAS
LOCATED 4 MILES NORTHEAST OF MENTONE...OR ABOUT 8 MILES WEST OF
WARSAW...AND MOVING EAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF CENTRAL KOSCIUSKO COUNTY.

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 4131 8590 4116 8588 4117 8606 4118 8606
      4130 8606
TIME...MOT...LOC 2235Z 280DEG 38KT 4121 8593
WIND...HAIL 60MPH 1.00IN

$$
462 
WWUS53 KIWX 182242
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
642 PM EDT WED JUL 18 2012

INC085-182252-
/O.CAN.KIWX.SV.W.0080.000000T0000Z-120718T2300Z/
KOSCIUSKO IN-
642 PM EDT WED JUL 18 2012

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL KOSCIUSKO COUNTY
IS CANCELLED...

AT 640 PM 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 SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED.

IF YOU OBSERVE ANY DAMAGE FROM THIS STORM...PLEASE REPORT IT TO THE 
NATIONAL WEATHER SERVICE. 

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 4131 8590 4116 8588 4117 8606 4118 8606
      4130 8606
TIME...MOT...LOC 2242Z 280DEG 38KT 4120 8583

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 8:08 PM EDTSevere Thunderstorm WarningIWXLaGrange52 min
Jul 17, 8:14 PM EDTSpecial Weather StatementIWXElkhart, LaPorte, Saint Joseph61 min
Jul 17, 8:31 PM EDTSpecial Weather StatementIWXSteuben59 min
Jul 17, 8:45 PM EDTSevere Thunderstorm WarningIWXDeKalb, LaGrange, Steuben26 min
Jul 17, 8:59 PM EDTAreal Flood AdvisoryIWXLaGrange, Steuben3 hr
Jul 18, 3:55 AM EDTHeat AdvisoryIWXAdams, Allen, Blackford, Cass, Fulton, Grant and 8 more13 hr
Jul 18, 12:41 PM EDTSpecial Weather StatementIWXWabash19 min
Jul 18, 12:53 PM EDTSpecial Weather StatementIWXAllen22 min
Jul 18, 1:09 PM EDTSpecial Weather StatementIWXAllen36 min
Jul 18, 1:13 PM EDTSpecial Weather StatementIWXHuntington32 min
Jul 18, 1:22 PM EDTSevere Thunderstorm WarningIWXAllen38 min
Jul 18, 1:43 PM EDTSpecial Weather StatementIWXAllen32 min
Jul 18, 1:48 PM EDTSpecial Weather StatementIWXAllen27 min
Jul 18, 1:53 PM EDTSevere Thunderstorm WarningIWXAdams, Allen, Wells27 min
Jul 18, 1:57 PM EDTAreal Flood AdvisoryIWXAdams, Allen, Wells3 hr
Jul 18, 2:10 PM EDTSpecial Weather StatementIWXFulton35 min
Jul 18, 2:32 PM EDTSpecial Weather StatementIWXAdams, Blackford, Jay28 min
Jul 18, 2:44 PM EDTSpecial Weather StatementIWXPulaski31 min
Jul 18, 2:48 PM EDTSpecial Weather StatementIWXWabash27 min
Jul 18, 2:51 PM EDTSpecial Weather StatementIWXMiami24 min
Jul 18, 3:04 PM EDTSpecial Weather StatementIWXBlackford, Jay26 min
Jul 18, 3:18 PM EDTSpecial Weather StatementIWXWabash27 min
Jul 18, 3:42 PM EDTSpecial Weather StatementIWXBlackford33 min
Jul 18, 5:01 PM EDTSpecial Weather StatementIWXCass, White59 min
Jul 18, 5:08 PM EDTSpecial Weather StatementIWXMarshall, Starke52 min
Jul 18, 6:05 PM EDTSpecial Weather StatementIWXFulton25 min
Jul 18, 6:48 PM EDTSpecial Weather StatementIWXKosciusko42 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2012Every severe thunderstorm warning in 2012

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.