Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 73, NWS Northern Indiana

July 17, 2012Kosciusko County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Jul 17, 2012, 3:38 PM EDT for Kosciusko County, Indiana. It was in force for 19 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 17, 2012, 3:38 PM EDT (19:38 UTC)
Expired
Jul 17, 2012, 3:57 PM EDT
In force
19 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Kosciusko County, IN

The radar

The Northern Indiana radar (KIWX), 36 km from the middle of the area, began a volume at 19:41 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, 7.6 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 2012-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1949 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 2012-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -56 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
1949 J/kg
Mixed-layer CIN
-87 J/kg
Mixed-layer LCL
1416 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-56 m²/s²
0-3 km storm-relative helicity
-32 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.

932 
WUUS53 KIWX 171938
SVRIWX
INC085-172030-
/O.NEW.KIWX.SV.W.0073.120717T1938Z-120717T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
338 PM EDT TUE JUL 17 2012

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN KOSCIUSKO COUNTY IN NORTH CENTRAL INDIANA...

* UNTIL 430 PM EDT

* AT 332 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
  OVER SOUTHERN KOSCIUSKO COUNTY...OR 11 MILES NORTHWEST OF NORTH
  MANCHESTER...AND MOVING EAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF SOUTHERN
  KOSCIUSKO COUNTY...INCLUDING THE FOLLOWING LOCATIONS CLAYPOOL...
  SILVER LAKE...PACKERTON AND SIDNEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. THIS SEVERE THUNDERSTORM HAS THE POTENTIAL TO
CAUSE SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.

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 4105 8602 4109 8602 4110 8606 4115 8607
      4115 8569 4105 8569
TIME...MOT...LOC 1938Z 281DEG 14KT 4109 8592
WIND...HAIL 60MPH 1.00IN

$$
1 follow-up statement
974 
WWUS53 KIWX 171957
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
357 PM EDT TUE JUL 17 2012

INC085-172007-
/O.CAN.KIWX.SV.W.0073.000000T0000Z-120717T2030Z/
KOSCIUSKO IN-
357 PM EDT TUE JUL 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN KOSCIUSKO COUNTY IS
CANCELLED...

AT 357 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.

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 4105 8602 4109 8602 4110 8606 4115 8607
      4115 8569 4105 8569
TIME...MOT...LOC 1957Z 281DEG 14KT 4108 8582

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 2:55 PM EDTSpecial Weather StatementIWXWhitley50 min
Jul 17, 3:08 PM EDTSpecial Weather StatementIWXFulton52 min
Jul 17, 3:25 PM EDTSpecial Weather StatementIWXHuntington50 min
Jul 17, 4:21 PM EDTSpecial Weather StatementIWXAllen39 min
Jul 17, 4:51 PM EDTSpecial Weather StatementIWXCass, Grant, Huntington, Miami, Wabash54 min
Jul 17, 4:56 PM EDTSevere Thunderstorm WarningIWXMiami, Wabash49 min
Jul 17, 5:51 PM EDTSpecial Weather StatementIWXHuntington, Wells54 min
Jul 17, 7:54 PM EDTSpecial Weather StatementIWXLaGrange66 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.