Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 7, NWS Northern Indiana

March 15, 2012Pulaski County, Starke County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Mar 15, 2012, 6:43 PM EDT for Pulaski County, Starke County, Indiana. It was in force for 47 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: Mar 15, 2012, 6:43 PM EDT (22:43 UTC)
Expired: Mar 15, 2012, 7:30 PM EDT
In force: 47 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Hail: 1.5 in
Wind: 50.0 mph

Counties Pulaski County, IN, Starke County, IN

The radar

The Northern Indiana radar (KIWX), 86 km from the middle of the area, began a volume at 22:44 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, 10.7 hours before the alert went out and 199 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1579 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 821 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 142 m²/s²
0-3 km storm-relative helicity: 117 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.

567 
WUUS53 KIWX 152243
SVRIWX
INC131-149-152330-
/O.NEW.KIWX.SV.W.0007.120315T2243Z-120315T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
543 PM CDT THU MAR 15 2012

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL PULASKI COUNTY IN NORTHWEST INDIANA...
  SOUTHERN STARKE COUNTY IN NORTHWEST INDIANA...

* UNTIL 630 PM CDT

* AT 539 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. 
  THIS SEVERE STORM WAS LOCATED NEAR NORTH JUDSON...OR 9 MILES
  SOUTHWEST OF KNOX...AND MOVING EAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF NORTH
  CENTRAL PULASKI AND SOUTHERN STARKE COUNTIES...INCLUDING THE     
  FOLLOWING LOCATIONS NORTH JUDSON...TOTO...DENHAM...
  BASS LAKE...BEARDSTOWN...  WINONA...ORA AND OBER.

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 4127 8678 4129 8649 4113 8654 4117 8682
      4122 8682 4125 8679
TIME...MOT...LOC 2243Z 277DEG 14KT 4121 8674
WIND...HAIL <50MPH 1.50IN

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 15, 5:01 AM EDT	Special Weather Statement	IWX	Kosciusko	44 min
Mar 15, 5:26 AM EDT	Special Weather Statement	IWX	Allen, DeKalb, Noble, Whitley	64 min
Mar 15, 6:25 AM EDT	Special Weather Statement	IWX	Wells	50 min
Mar 15, 3:58 PM EDT	Special Weather Statement	IWX	Pulaski	32 min
Mar 15, 5:21 PM EDT	Special Weather Statement	IWX	Pulaski	39 min
Mar 15, 5:22 PM EDT	Special Weather Statement	IWX	Noble	23 min
Mar 15, 5:29 PM EDT	Severe Thunderstorm Warning	IWX	Fulton, Pulaski	46 min
Mar 15, 5:51 PM EDT	Severe Thunderstorm Warning	IWX	LaPorte, Starke	54 min
Mar 15, 6:11 PM EDT	Special Weather Statement	IWX	Miami	34 min
Mar 15, 7:17 PM EDT	Special Weather Statement	IWX	Wabash	43 min
Mar 15, 7:20 PM EDT	Flash Flood Warning	IWX	Pulaski, Starke	6 hr
Mar 15, 7:28 PM EDT	Severe Thunderstorm Warning	IWX	Steuben	47 min
Mar 15, 7:32 PM EDT	Special Weather Statement	IWX	Pulaski	28 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2012 Every 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.