Alert archive / Michigan / Tornado Warnings in 2006

Tornado Warning 13, NWS Grand Rapids, MI

October 2, 2006Mason County, Michigan

NWS Grand Rapids, MI issued this tornado warning at Oct 2, 2006, 5:25 PM EDT for Mason County, Michigan. It was in force for 26 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
Oct 2, 2006, 5:25 PM EDT (21:25 UTC)
Expired
Oct 2, 2006, 5:51 PM EDT
In force
26 min
Issued by
NWS Grand Rapids, MI
Area
Counties, with a storm outline in the text

County Mason County, MI

The radar

The Grand Rapids radar (KGRR), 126 km from the middle of the area, began a volume at 21:25 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.4 hours before the alert went out and 165 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, Green Bay/Straub, WI at 12:00Z on 2006-10-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 77 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, Green Bay/Straub, WI at 12:00Z on 2006-10-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 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
77 J/kg
Mixed-layer CIN
-625 J/kg
Mixed-layer LCL
1114 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
98 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 KGRR 022126
TORGRR
MIC105-022200-
/O.NEW.KGRR.TO.W.0013.061002T2125Z-061002T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
525 PM EDT MON OCT 2 2006

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS
HAS ISSUED A

* TORNADO WARNING FOR...
  MASON COUNTY IN WEST CENTRAL MICHIGAN

* UNTIL 600 PM EDT

* AT 521 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM PRODUCING A TORNADO. THIS STORM WAS LOCATED
  OVER CUSTER...OR ABOUT 12 MILES EAST OF LUDINGTON...AND MOVING
  SOUTHEAST AT 30 MPH.

* THE TORNADO WILL BE CROSSING...
  LOGAN TOWNSHIP AT 540 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.

LAT...LON 4403 8625 4401 8617 4398 8609 4398 8606
      4383 8606 4383 8606 4383 8621 4386 8630
      4388 8634

$$


MJS
2 follow-up statements
000 
WWUS53 KGRR 022141
SVSGRR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
540 PM EDT MON OCT 2 2006

MIC105-022200-
/O.CON.KGRR.TO.W.0013.000000T0000Z-061002T2200Z/
MASON MI-
540 PM EDT MON OCT 2 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM EDT FOR MASON
COUNTY...

AT 538 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THNUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS TORNADO
WAS LOCATED ABOUT 13 MILES WEST OF BALDWIN...AND MOVING SOUTHEAST AT 
30 MPH.

THE TORNADO WILL OTHERWISE REMAIN SOUTH OF WAHALLA IN MASON COUNTY.

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.

LAT...LON 4383 8621 4398 8609 4398 8606 4383 8606
      4383 8606

$$
TJT
000 
WWUS53 KGRR 022151
SVSGRR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
550 PM EDT MON OCT 2 2006

MIC105-022200-
/O.CAN.KGRR.TO.W.0013.000000T0000Z-061002T2200Z/
MASON MI-
550 PM EDT MON OCT 2 2006

...THE TORNADO WARNING FOR MASON COUNTY IS CANCELLED...
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEAST 
MASON COUNTY UNTIL 600 PM EDT...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORM WHICH PROMPTED THE WARNING IS NO LONGER CAPABLE OF 
PRODUCING A TORNADO. STORMS IN SOUTHEAST MASON ARE STILL CAPABLE OF 
PROCUDING HAIL UP TO QUARTER SIZE.

LAT...LON 4383 8621 4398 8609 4398 8606 4383 8606
      4383 8606

$$

TJT

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 2, 4:45 AM EDTSpecial Marine WarningGRR90 min
Oct 2, 7:47 AM EDTSevere Thunderstorm WarningGRRVan Buren43 min
Oct 2, 8:11 AM EDTSpecial Marine WarningGRR45 min
Oct 2, 10:09 AM EDTSpecial Marine WarningGRR96 min
Oct 2, 10:51 AM EDTSevere Thunderstorm WarningGRRMuskegon24 min
Oct 2, 11:01 AM EDTSevere Thunderstorm WarningGRROttawa29 min
Oct 2, 11:23 AM EDTSevere Thunderstorm WarningGRRMuskegon, Newaygo18 min
Oct 2, 11:44 AM EDTSevere Thunderstorm WarningGRRMuskegon, Ottawa46 min
Oct 2, 2:04 PM EDTSevere Thunderstorm WarningGRRMecosta, Montcalm24 min
Oct 2, 2:38 PM EDTSpecial Marine WarningGRR67 min
Oct 2, 2:56 PM EDTSevere Thunderstorm WarningGRRClinton27 min
Oct 2, 4:53 PM EDTSpecial Marine WarningGRR37 min
Oct 2, 4:56 PM EDTSevere Thunderstorm WarningGRRMason64 min
Oct 2, 5:37 PM EDTSevere Thunderstorm WarningGRRLake, Newaygo, Oceana68 min
Oct 2, 6:00 PM EDTSpecial Marine WarningGRR30 min
Oct 2, 6:45 PM EDTSevere Thunderstorm WarningGRRNewaygo, Oceana75 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.