Alert archive / Michigan / Tornado Warnings in 2007

Tornado Warning 40, NWS Northern Indiana

October 18, 2007Saint Joseph County, Indiana; Berrien County, Cass County, Michigan

NWS Northern Indiana issued this tornado warning at Oct 18, 2007, 8:58 PM EDT for Saint Joseph County, Indiana; Berrien County, Cass County, Michigan. It was in force for 47 min. 3 reports 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: Oct 18, 2007, 8:58 PM EDT (00:58 UTC)
Expired: Oct 18, 2007, 9:45 PM EDT
In force: 47 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon

Counties Saint Joseph County, IN, Berrien County, MI, Cass County, MI

The radar

The Northern Indiana radar (KIWX), 76 km from the middle of the area, began a volume at 00:57 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

Time	Report	Where	Remark
Oct 18, 9:05 PM EDT	TSTM WND DMG	Niles, MI	TWO TREES DOWN IN THE TOWN OF NILES
Oct 18, 9:06 PM EDT	HAIL 1	Niles, MI
Oct 18, 9:45 PM EDT	TSTM WND DMG	Indian Lake, MI	TREE DOWN ACROSS STREET...BROUGHT POWER LINES DOWN WITH IT

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.

Issued	Product	Office	Lasted
Oct 18, 4:23 PM EDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 1.0 hours before the alert went out and 237 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: 504 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 1038 m above ground
0-6 km bulk shear: 77 kt
0-1 km storm-relative helicity: 354 m²/s²
0-3 km storm-relative helicity: 339 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 4.4

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KIWX 190059
TORIWX
INC141-MIC021-027-190145-
/O.NEW.KIWX.TO.W.0040.071019T0058Z-071019T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
858 PM EDT THU OCT 18 2007

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

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

* UNTIL 945 PM EDT

* AT 852 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION.  THIS SEVERE STORM WAS
  LOCATED NEAR GALIEN...OR ABOUT 4 MILES SOUTHWEST OF BUCHANAN...AND
  MOVING NORTHEAST AT 50 MPH.

* LOCATIONS IN THE PATH OF THE SEVERE STORM INCLUDE...
  DOWAGIAC...
  BERRIEN SPRINGS...
  CASSOPOLIS...
  MARCELLUS...
  BARRON LAKE...
  SUMNERVILLE...POKAGON AND INDIAN LAKE...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

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 4207 8612 4207 8577 4200 8577 4170 8642
      4186 8654
TIME...MOT...LOC 0058Z 238DEG 46KT 4184 8635

$$

JC

3 follow-up statements

000 
WWUS53 KIWX 190113
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
913 PM EDT THU OCT 18 2007

INC141-190123-
/O.CAN.KIWX.TO.W.0040.000000T0000Z-071019T0145Z/
ST. JOSEPH IN-
913 PM EDT THU OCT 18 2007

...THE TORNADO WARNING FOR NORTH CENTRAL ST. JOSEPH COUNTY IN NORTH
CENTRAL INDIANA IS CANCELLED...

AT 909 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 TORNADO WARNING HAS BEEN CANCELLED.

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT FRIDAY MORNING
FOR NORTHERN INDIANA AND SOUTHERN MICHIGAN.

LAT...LON 4207 8577 4200 8577 4176 8630 4176 8631
      4195 8636 4207 8612
TIME...MOT...LOC 0113Z 239DEG 45KT 4191 8614

$$

MIC021-027-190145-
/O.CON.KIWX.TO.W.0040.000000T0000Z-071019T0145Z/
BERRIEN MI-CASS MI-
913 PM EDT THU OCT 18 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM EDT FOR NORTHERN
CASS AND SOUTHEASTERN BERRIEN COUNTIES IN SOUTHWEST MICHIGAN...

AT 909 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM WITH STRONG ROTATION CAPABLE OF
PRODUCING GOLF BALL SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70
MPH. THIS SEVERE STORM WAS LOCATED NEAR SUMNERVILLE...OR ABOUT 4
MILES NORTHEAST OF NILES...AND MOVING NORTHEAST AT 50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
DAILEY...DOWAGIAC...LA GRANGE...CASSOPOLIS...PENN...WAKELEE AND
MARCELLUS.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT FRIDAY MORNING
FOR NORTHERN INDIANA AND SOUTHERN MICHIGAN.

LAT...LON 4207 8577 4200 8577 4176 8630 4176 8631
      4195 8636 4207 8612
TIME...MOT...LOC 0113Z 239DEG 45KT 4191 8614

$$

JC

000 
WWUS53 KIWX 190124
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
923 PM EDT THU OCT 18 2007

MIC021-190133-
/O.CAN.KIWX.TO.W.0040.000000T0000Z-071019T0145Z/
BERRIEN MI-
923 PM EDT THU OCT 18 2007

...THE TORNADO WARNING FOR SOUTHEASTERN BERRIEN COUNTY IS
CANCELLED...

AT 919 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAD WEAKENED OR
MOVED OUT OF THE AREA AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE
OR PROPERTY. THEREFORE...THE TORNADO WARNING HAS BEEN CANCELLED.

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT FRIDAY MORNING
FOR NORTHERN INDIANA AND SOUTHERN MICHIGAN.

LAT...LON 4207 8577 4203 8577 4200 8578 4181 8620
      4203 8621 4207 8612
TIME...MOT...LOC 0123Z 234DEG 49KT 4192 8599

$$

MIC027-190145-
/O.CON.KIWX.TO.W.0040.000000T0000Z-071019T0145Z/
CASS MI-
923 PM EDT THU OCT 18 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM EDT FOR NORTHERN
CASS COUNTY IN SOUTHWEST MICHIGAN...

AT 919 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM WITH STRONG ROTATION CAPABLE OF
PRODUCING GOLF BALL SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70
MPH. THIS SEVERE STORM WAS LOCATED NEAR DAILEY...OR ABOUT 7 MILES
SOUTHEAST OF DOWAGIAC...AND MOVING NORTHEAST AT 55 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PENN...
WAKELEE AND MARCELLUS.

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

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT FRIDAY MORNING
FOR NORTHERN INDIANA AND SOUTHERN MICHIGAN.

LAT...LON 4207 8577 4203 8577 4200 8578 4181 8620
      4203 8621 4207 8612
TIME...MOT...LOC 0123Z 234DEG 49KT 4192 8599

$$

JC

000 
WWUS53 KIWX 190148
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
948 PM EDT THU OCT 18 2007

MIC027-190158-
/O.EXP.KIWX.TO.W.0040.000000T0000Z-071019T0145Z/
CASS MI-
948 PM EDT THU OCT 18 2007

...THE TORNADO WARNING FOR NORTHERN CASS COUNTY IN SOUTHWEST MICHIGAN
EXPIRED AT 945 PM EDT...

AT 947 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAD MOVED OUT OF 
THE AREA. THEREFORE...THE TORNADO WARNING HAS BEEN
ALLOWED TO EXPIRE.

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT FRIDAY MORNING
FOR NORTHERN INDIANA AND SOUTHERN MICHIGAN.

LAT...LON 4207 8577 4203 8577 4200 8578 4181 8620
      4203 8621 4207 8612
TIME...MOT...LOC 0124Z 234DEG 49KT 4192 8597

$$

JC

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 18, 8:06 PM EDT	Severe Thunderstorm Warning	IWX	LaGrange, Noble, Steuben	54 min
Oct 18, 8:09 PM EDT	Severe Thunderstorm Warning	IWX	LaPorte	51 min
Oct 18, 8:10 PM EDT	Tornado Warning	IWX	Noble, Whitley	50 min
Oct 18, 8:18 PM EDT	Special Marine Warning	IWX		87 min
Oct 18, 8:23 PM EDT	Severe Thunderstorm Warning	IWX	LaPorte, Starke	39 min
Oct 18, 8:50 PM EDT	Severe Thunderstorm Warning	IWX	LaPorte, Saint Joseph	40 min
Oct 18, 9:09 PM EDT	Severe Thunderstorm Warning	IWX	Pulaski, White	66 min
Oct 18, 9:42 PM EDT	Severe Thunderstorm Warning	IWX	Fulton, Marshall, Starke	48 min
Oct 18, 10:13 PM EDT	Tornado Warning Emergency	IWX	Elkhart, Kosciusko, Marshall	47 min
Oct 18, 10:30 PM EDT	Tornado Warning	IWX	Miami, Wabash	45 min
Oct 18, 10:41 PM EDT	Tornado Warning	IWX	LaGrange	34 min
Oct 18, 10:45 PM EDT	Severe Thunderstorm Warning	IWX	Elkhart, LaGrange	60 min
Oct 18, 10:59 PM EDT	Tornado Warning	IWX	Huntington, Whitley	28 min
Oct 18, 11:30 PM EDT	Severe Thunderstorm Warning	IWX	Allen, DeKalb, Noble	45 min
Oct 19, 12:03 AM EDT	Tornado Warning	IWX	DeKalb, Steuben	12 min
Oct 18, 9:29 PM EDT	Tornado Warning	IWX	Cass, Saint Joseph	46 min
Oct 18, 11:05 PM EDT	Tornado Warning	IWX	Branch, Saint Joseph	40 min

Nearby

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