Alert archive / Indiana / Tornado Warnings in 2007

Tornado Warning 17, NWS Northern Indiana

May 15, 2007Cass County, Indiana

NWS Northern Indiana issued this tornado warning at May 15, 2007, 5:11 PM EDT for Cass County, Indiana. It was in force for 49 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 15, 2007, 5:11 PM EDT (21:11 UTC)
Expired
May 15, 2007, 6:00 PM EDT
In force
49 min
Issued by
NWS Northern Indiana
Area
Counties, with a storm outline in the text

County Cass County, IN

The radar

The Northern Indiana radar (KIWX), 88 km from the middle of the area, began a volume at 21:13 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.

What was reported inside it

TimeReportWhereRemark
May 15, 5:30 PM EDTTSTM WND DMGLogansport, INMULTIPLE TREES AND POWERLINES DOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 15, 1:53 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.2 hours before the alert went out and 196 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 2007-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 20 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 2007-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 square meters per square second.193958Sfc1 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
20 J/kg
Mixed-layer CIN
-273 J/kg
Mixed-layer LCL
1998 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
49 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.

000 
WFUS53 KIWX 152111
TORIWX
INC017-152200-
/O.NEW.KIWX.TO.W.0017.070515T2111Z-070515T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
511 PM EDT TUE MAY 15 2007

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* TORNADO WARNING FOR...
  CASS COUNTY IN NORTH CENTRAL INDIANA

* UNTIL 600 PM EDT

* AT 508 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION.  THIS SEVERE STORM WAS
  LOCATED 4 MILES WEST OF LAKE CICOTT...OR ABOUT 9 MILES EAST OF
  MONTICELLO...AND MOVING EAST AT 40 MPH.

* LOCATIONS IN THE PATH OF THE SEVERE STORM INCLUDE...
  DUNKIRK AND ROYAL CENTER...
  LUCERNE AND LOGANSPORT...
  METEA...LEASES CORNER AND ADAMSBORO...
  HOOVER AND NEW WAVERLY...
  TWELVE MILE...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
PENNY SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS IN EXCESS OF 70 
MPH.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4091 8658 4075 8660 4074 8652 4070 8652
      4074 8617 4092 8617

$$
1 follow-up statement
000 
WWUS53 KIWX 152156
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
556 PM EDT TUE MAY 15 2007

INC017-152206-
/O.EXP.KIWX.TO.W.0017.000000T0000Z-070515T2200Z/
CASS IN-
556 PM EDT TUE MAY 15 2007

...THE TORNADO WARNING FOR CASS COUNTY IN NORTH CENTRAL INDIANA
EXPIRES AT 600 PM EDT...

AT 553 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING WAS MOVING OUT OF 
THE AREA THEREFORE...THE TORNADO WARNING WILL BE ALLOWED TO EXPIRE
AT 600 PM EDT.

IF YOU HAVE SEVERE WEATHER TO REPORT...YOU CAN CALL YOUR LOCAL LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

LAT...LON 4091 8658 4075 8660 4074 8652 4070 8652
      4074 8617 4092 8617

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 15, 1:55 PM EDTSevere Thunderstorm WarningIWXElkhart, Saint Joseph52 min
May 15, 2:53 PM EDTSevere Thunderstorm WarningIWXKosciusko, Noble49 min
May 15, 3:58 PM EDTSevere Thunderstorm WarningIWXKosciusko32 min
May 15, 4:03 PM EDTSevere Thunderstorm WarningIWXPulaski42 min
May 15, 4:08 PM EDTSpecial Marine WarningIWX97 min
May 15, 4:13 PM EDTTornado WarningIWXLaPorte41 min
May 15, 4:23 PM EDTSevere Thunderstorm WarningIWXFulton, Marshall52 min
May 15, 4:43 PM EDTSevere Thunderstorm WarningIWXKosciusko62 min
May 15, 4:44 PM EDTTornado WarningIWXSaint Joseph46 min
May 15, 4:51 PM EDTTornado WarningIWXPulaski, Starke39 min
May 15, 5:01 PM EDTSevere Thunderstorm WarningIWXWhite25 min
May 15, 5:09 PM EDTTornado WarningIWXFulton, Marshall, Starke39 min
May 15, 5:12 PM EDTSevere Thunderstorm WarningIWXElkhart, LaGrange, Noble48 min
May 15, 5:26 PM EDTSevere Thunderstorm WarningIWXFulton34 min
May 15, 5:33 PM EDTFlash Flood WarningIWXLaPorte, Saint Joseph3 hr
May 15, 5:35 PM EDTSevere Thunderstorm WarningIWXKosciusko, Miami, Wabash34 min
May 15, 5:51 PM EDTSevere Thunderstorm WarningIWXHuntington, Noble, Whitley47 min
May 15, 6:23 PM EDTSevere Thunderstorm WarningIWXDeKalb, Steuben42 min

Nearby

Tornado Warnings in Indiana, 2007Every tornado warning in 2007Tornadoes in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.