Alert archive / Michigan / Tornado Warnings in 2007

Tornado Warning 21, NWS Northern Indiana

July 18, 2007Berrien County, Michigan; Saint Joseph County, Indiana

NWS Northern Indiana issued this tornado warning at Jul 18, 2007, 9:02 PM EDT for Berrien County, Michigan; Saint Joseph County, Indiana. It was in force for 43 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, 2007, 9:02 PM EDT (01:02 UTC)
Expired
Jul 18, 2007, 9:45 PM EDT
In force
43 min
Issued by
NWS Northern Indiana
Area
Counties, with a storm outline in the text

Counties Saint Joseph County, IN, Berrien County, MI

The radar

The Northern Indiana radar (KIWX), 66 km from the middle of the area, began a volume at 01:03 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 watch it was issued in

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

IssuedProductOfficeLasted
Jul 18, 8:29 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 1.0 hours before the alert went out and 259 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, Detroit, MI at 00:00Z on 2007-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1365 joules per kilogram.LCLEL10008507005003002001001 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, Detroit, MI at 00:00Z on 2007-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.19395878Sfc1 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
1365 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1274 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS53 KIWX 190102
TORIWX
INC141-MIC021-190145-
/O.NEW.KIWX.TO.W.0021.070719T0102Z-070719T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
902 PM EDT WED JUL 18 2007

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN ST. JOSEPH COUNTY IN NORTH CENTRAL INDIANA
  SOUTHEASTERN BERRIEN COUNTY IN SOUTHWEST MICHIGAN

* UNTIL 945 PM EDT

* AT 859 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION.  THIS SEVERE STORM WAS
  LOCATED NEAR GLENDORA...OR ABOUT 6 MILES WEST OF BUCHANAN...AND
  MOVING SOUTHEAST AT 15 MPH.

* LOCATIONS IN THE PATH OF THE SEVERE STORM INCLUDE...
  DAYTON...
  BUCHANAN...
  CHAIN-O-LAKES...
  LYDICK AND NILES...
  BERTRAND...
  SOUTH BEND...
  ROSELAND AND GEORGETOWN...

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 4185 8623 4176 8623 4176 8607 4168 8607
      4156 8619 4156 8620 4173 8648 4177 8653
      4179 8658 4195 8643

$$
2 follow-up statements
000 
WWUS53 KIWX 190124
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
924 PM EDT WED JUL 18 2007

INC141-MIC021-190145-
/O.CON.KIWX.TO.W.0021.000000T0000Z-070719T0145Z/
ST. JOSEPH IN-BERRIEN MI-
924 PM EDT WED JUL 18 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM EDT FOR NORTHERN
ST. JOSEPH COUNTY IN NORTH CENTRAL INDIANA...AND SOUTHEASTERN BERRIEN
COUNTY IN SOUTHWEST MICHIGAN...

AT 920 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS SEVERE
STORM WAS LOCATED 3 MILES SOUTHEAST OF BUCHANAN...AND MOVING
SOUTHEAST AT 20 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
NILES...BERTRAND...ROSELAND...SOUTH BEND...GEORGETOWN...INDIAN
VILLAGE...MISHAWAKA...GULIVOIRE PARK AND GRANGER.

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.

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

LAT...LON 4185 8623 4176 8607 4168 8607 4156 8619
      4156 8620 4173 8648 4177 8653 4179 8658
      4195 8643

$$
000 
WWUS53 KIWX 190150
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
947 PM EDT WED JUL 18 2007

INC141-MIC021-190157-
/O.EXP.KIWX.TO.W.0021.000000T0000Z-070719T0145Z/
ST. JOSEPH IN-BERRIEN MI-
947 PM EDT WED JUL 18 2007

...THE TORNADO WARNING FOR NORTHERN ST. JOSEPH COUNTY IN NORTH
CENTRAL INDIANA...AND SOUTHEASTERN BERRIEN COUNTY IN SOUTHWEST
MICHIGAN EXPIRES AT 945 PM EDT...

AT 946 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAD WEAKENED. 
THEREFORE...THE TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE. THIS 
STORM WILL CONTINUE TO PRODUCE VERY HEAVY RAIN... FREQUENT 
LIGHTNING... AND WIND GUSTS TO 45 MPH AS IT MOVES SOUTHEAST ACROSS 
EASTERN ST. JOSEPH COUNTY AND INTO WESTERN ELKHART COUNTY. 

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

LAT...LON 4185 8623 4176 8607 4168 8607 4156 8619
      4156 8620 4173 8648 4177 8653 4179 8658
      4195 8643

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 10:11 PM EDTFlash Flood WarningIWXBerrien3 hr
Jul 18, 8:44 PM EDTSpecial Marine WarningIWX2 hr
Jul 18, 9:50 PM EDTSevere Thunderstorm WarningIWXDeKalb, Noble55 min
Jul 18, 10:11 PM EDTFlash Flood WarningIWXAllen, DeKalb, Elkhart, Kosciusko, LaGrange, Marshall and 1 more3 hr
Jul 18, 10:24 PM EDTSevere Thunderstorm WarningIWXLaPorte, Marshall, Saint Joseph51 min
Jul 18, 10:51 PM EDTFlood WatchIWXAdams, Allen, Blackford, Cass, DeKalb, Elkhart and 13 more5 hr
Jul 18, 11:01 PM EDTSevere Thunderstorm WarningIWXMarshall, Starke44 min
Jul 18, 11:22 PM EDTFlash Flood WarningIWXAdams, Allen, Huntington, Wabash, Wells, Whitley6 hr
Jul 18, 11:22 PM EDTFlash Flood WarningIWXFulton, Kosciusko, Marshall, Pulaski, Starke6 hr
Jul 18, 11:22 PM EDTFlash Flood WarningIWXLaPorte6 hr
Jul 18, 11:26 PM EDTTornado WarningIWXKosciusko, Marshall49 min

Nearby

Tornado Warnings in Michigan, 2007Tornado 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.