Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 22, NWS Northern Indiana

May 7, 2012Jay County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at May 7, 2012, 3:58 PM EDT for Jay County, Indiana. It was in force for 53 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 7, 2012, 3:58 PM EDT (19:58 UTC)
Expired
May 7, 2012, 4:51 PM EDT
In force
53 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Hail
1.5 in
Wind
60.0 mph

County Jay County, IN

The radar

The Northern Indiana radar (KIWX), 120 km from the middle of the area, began a volume at 19:58 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.0 hours before the alert went out and 152 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 2012-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 807 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 2012-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 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
807 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
961 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
21 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.

167 
WUUS53 KIWX 071958
SVRIWX
INC075-072100-
/O.NEW.KIWX.SV.W.0022.120507T1958Z-120507T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
358 PM EDT MON MAY 7 2012

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL AND SOUTHEASTERN JAY COUNTY IN EAST CENTRAL INDIANA...

* UNTIL 500 PM EDT

* AT 357 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS SEVERE STORM
  WAS LOCATED 5 MILES SOUTHWEST OF DUNKIRK...AND MOVING NORTHEAST AT
  25 MPH.

* LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
  REDKEY...
  PORTLAND...

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
POWERS...COMO...NEW MOUNT PLEASANT...BLAINE...CENTER...BLUFF POINT...
COLLETT...BOUNDARY CITY...COLLEGE CORNER...LIBER...SALAMONIA AND
BRICE.

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 4037 8521 4047 8503 4058 8480 4032 8481
      4031 8521
TIME...MOT...LOC 1957Z 235DEG 30KT 4033 8522
WIND...HAIL 60MPH 1.50IN

$$
2 follow-up statements
888 
WWUS53 KIWX 072023
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
423 PM EDT MON MAY 7 2012

INC075-072100-
/O.CON.KIWX.SV.W.0022.000000T0000Z-120507T2100Z/
JAY IN-
423 PM EDT MON MAY 7 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR SOUTHEASTERN JAY COUNTY...

AT 421 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 OVER EXTREME NORTH CENTRAL RANDOLPH COUNTY...OR ABOUT 8 MILES
SOUTHEAST OF DUNKIRK...AND MOVING NORTHEAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  NEW MOUNT PLEASANT...BLUFF POINT...COLLETT...BOUNDARY CITY...
  COLLEGE CORNER...LIBER...SALAMONIA...BRICE AND BELLFOUNTAIN.

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 4031 8510 4032 8514 4046 8494 4053 8480
      4032 8481
TIME...MOT...LOC 2022Z 235DEG 30KT 4032 8507
WIND...HAIL 60MPH 1.00IN

$$
873 
WWUS53 KIWX 072051
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
451 PM EDT MON MAY 7 2012

INC075-072100-
/O.CAN.KIWX.SV.W.0022.000000T0000Z-120507T2100Z/
JAY IN-
451 PM EDT MON MAY 7 2012

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

AT 448 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAD MOVED OUT OF
THE AREA AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU OBSERVED HAIL 1 INCH IN DIAMETER OR GREATER WITH THIS 
STORM...PLEASE REPORT IT BY CONTACTING YOUR NEAREST LAW ENFORCEMENT 
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE 
IN NORTHERN INDIANA. THIS HAIL LIKELY FELL IN THE EXTREME SOUTHEAST 
CORNER OF JAY COUNTY.

&&

LAT...LON 4031 8510 4032 8514 4046 8494 4053 8480
      4032 8481
TIME...MOT...LOC 2050Z 235DEG 30KT 4045 8482

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 3:11 AM EDTSpecial Weather StatementIWXPulaski, White64 min
May 7, 4:36 AM EDTSpecial Weather StatementIWXWhitley24 min
May 7, 4:55 AM EDTFlash Flood WarningIWXWhite4 hr
May 7, 4:56 AM EDTSpecial Weather StatementIWXDeKalb, Steuben34 min
May 7, 5:34 AM EDTFlash Flood WarningIWXDeKalb, Elkhart, LaGrange, Noble, Steuben4 hr

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.