Alert archive / Michigan / Tornado Warnings in 2006

Tornado Warning 9, NWS Grand Rapids, MI

August 2, 2006Isabella County, Michigan

NWS Grand Rapids, MI issued this tornado warning at Aug 2, 2006, 8:33 PM EDT for Isabella County, Michigan. It was in force for 27 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
Aug 2, 2006, 8:33 PM EDT (00:33 UTC)
Expired
Aug 2, 2006, 9:00 PM EDT
In force
27 min
Issued by
NWS Grand Rapids, MI
Area
Counties, with a storm outline in the text

County Isabella County, MI

The radar

The Grand Rapids radar (KGRR), 99 km from the middle of the area, began a volume at 00:33 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
Aug 2, 3:39 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 0.6 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, Detroit, MI at 00:00Z on 2006-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1974 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, Detroit, MI at 00:00Z on 2006-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 136 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
1974 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
1473 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
136 m²/s²
0-3 km storm-relative helicity
214 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.5

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KGRR 030034
TORGRR
MIC073-030100-
/O.NEW.KGRR.TO.W.0009.060803T0033Z-060803T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
833 PM EDT WED AUG 2 2006

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS
HAS ISSUED A

* TORNADO WARNING FOR...
  ISABELLA COUNTY IN CENTRAL MICHIGAN

* UNTIL 900 PM EDT

* AT 829 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THNUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS
  LOCATED 7 MILES WEST OF MOUNT PLEASANT...AND MOVING EAST AT 45 MPH.
  THIS WARNING UPGRADED THE PREVIOUS SEVERE THUNDERSTORM WARNING.

* THE TORNADO WILL BE NEAR...
  SHEPHERD BY 840 PM EDT

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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT
THURSDAY MORNING FOR SOUTHWESTERN MICHIGAN. A SEVERE THUNDERSTORM
WATCH ALSO REMAINS IN EFFECT UNTIL 100 AM EDT THURSDAY MORNING FOR
SOUTHWESTERN MICHIGAN.

LAT...LON 4369 8499 4349 8496 4349 8464 4377 8462

$$

JL WDM
2 follow-up statements
000 
WWUS53 KGRR 030046
SVSGRR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
845 PM EDT WED AUG 2 2006

MIC073-030100-
/O.CON.KGRR.TO.W.0009.000000T0000Z-060803T0100Z/
ISABELLA MI-
845 PM EDT WED AUG 2 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR ISABELLA
COUNTY...

AT 842 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STORM POSSIBLY PRODUCING A TORNADO.  THIS TORNADO WAS LOCATED NEAR 
MOUNT PLEASANT...AND MOVING EAST AT 35 MPH.

THE TORNADO WILL BE NEAR...
  DELWIN AND WISE BY 850 PM EDT

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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT
THURSDAY MORNING FOR SOUTHWESTERN MICHIGAN. A SEVERE THUNDERSTORM
WATCH ALSO REMAINS IN EFFECT UNTIL 100 AM EDT THURSDAY MORNING FOR
SOUTHWESTERN MICHIGAN.

LAT...LON 4369 8499 4349 8496 4349 8464 4377 8462

$$

IOD
000 
WWUS53 KGRR 030057
SVSGRR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
857 PM EDT WED AUG 2 2006

MIC073-030107-
/O.EXP.KGRR.TO.W.0009.000000T0000Z-060803T0100Z/
ISABELLA MI-
857 PM EDT WED AUG 2 2006

...THE TORNADO WARNING FOR ISABELLA COUNTY HAS EXPIRED...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORM WHICH PROMPTED THE WARNING HAS EXITED THE WARNED AREA.
THEREFORE THE TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT
THURSDAY MORNING FOR SOUTHWESTERN MICHIGAN. A SEVERE THUNDERSTORM
WATCH ALSO REMAINS IN EFFECT UNTIL 100 AM EDT THURSDAY MORNING FOR
SOUTHWESTERN MICHIGAN.

LAT...LON 4369 8499 4349 8496 4349 8464 4377 8462

$$

IOD

The office that day

Everything else NWS Grand Rapids, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 2, 8:17 PM EDTSevere Thunderstorm WarningGRRIsabella, Mecosta23 min
Aug 2, 8:24 PM EDTSevere Thunderstorm WarningGRRAllegan27 min
Aug 2, 8:39 PM EDTSevere Thunderstorm WarningGRRVan Buren66 min
Aug 2, 8:51 PM EDTSevere Thunderstorm WarningGRRClinton54 min
Aug 2, 9:08 PM EDTSevere Thunderstorm WarningGRRKalamazoo67 min
Aug 2, 9:18 PM EDTSevere Thunderstorm WarningGRRBarry, Eaton, Ionia57 min
Aug 2, 9:36 PM EDTSevere Thunderstorm WarningGRRCalhoun47 min
Aug 2, 9:42 PM EDTSevere Thunderstorm WarningGRRClinton30 min
Aug 2, 9:45 PM EDTSevere Thunderstorm WarningGRRVan Buren40 min
Aug 2, 9:49 PM EDTSevere Thunderstorm WarningGRRIngham56 min
Aug 3, 12:13 AM EDTSpecial Marine WarningGRR40 min
Aug 3, 6:38 AM EDTSpecial Marine WarningGRR97 min
Aug 3, 7:53 AM EDTSevere Thunderstorm WarningGRRVan Buren52 min
Aug 3, 8:13 AM EDTSevere Thunderstorm WarningGRRKalamazoo47 min
Aug 3, 8:49 AM EDTSevere Thunderstorm WarningGRRCalhoun41 min
Aug 3, 9:36 AM EDTSevere Thunderstorm WarningGRRIngham, Jackson39 min

Nearby

Tornado Warnings in Michigan, 2006Every tornado warning in 2006Tornadoes in 2006

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.