Alert archive / Michigan / Tornado Warnings in 2012

Tornado Warning 6, NWS Grand Rapids, MI

July 25, 2012Clare County, Michigan

NWS Grand Rapids, MI issued this tornado warning at Jul 25, 2012, 9:44 PM EDT for Clare County, Michigan. It was in force for 24 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
Jul 25, 2012, 9:44 PM EDT (01:44 UTC)
Expired
Jul 25, 2012, 10:08 PM EDT
In force
24 min
Issued by
NWS Grand Rapids, MI
Area
Storm-based polygon

County Clare County, MI

The radar

The NCL Michigan radar (KAPX), 102 km from the middle of the area, began a volume at 01:46 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
Jul 25, 10:00 PM EDTTSTM WND DMG10 W Meredith, MIDOZENS OF TREES DOWN IN AREA.
Jul 25, 10:00 PM EDTTSTM WND DMG6 N Harrison, MITREES DOWN IN AREA.
Jul 25, 10:00 PM EDTTSTM WND DMG6 Se Harrison, MITREES DOWN IN AREA.

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
Jul 25, 7:38 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 1.7 hours before the alert went out and 179 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 2012-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 00:00Z on 2012-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 226 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1843 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
226 m²/s²
0-3 km storm-relative helicity
373 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

212 
WFUS53 KGRR 260144
TORGRR
MIC035-260245-
/O.NEW.KGRR.TO.W.0006.120726T0144Z-120726T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
944 PM EDT WED JUL 25 2012

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN CLARE COUNTY IN CENTRAL MICHIGAN...

* UNTIL 1045 PM EDT

* AT 943 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
  DANGEROUS STORM WAS LOCATED 7 MILES SOUTHEAST OF MODDERSVILLE...AND
  MOVING SOUTHEAST AT 35 MPH.

* THIS TORNADIC STORM WILL BE NEAR...
   LEOTA AROUND 945 PM EDT...
   LONG LAKE HEIGHTS AROUND 955 PM EDT...
   DODGE LAKE AROUND 1000 PM EDT...

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
  HARRISON...           CLARE...              DODGE LAKE...
  LONG LAKE HEIGHTS...  WINTERFIELD TWP...    FRANKLIN TWP...
  SHERIDEN TWP...       LEOTA...              MEREDITH...
  BROWNS CORNER...      DOVER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING OBJECTS.

TORNADOES ARE DIFFICULT TO SEE AT NIGHT. DO NOT WAIT TO SEE OR HEAR
THE TORNADO. TAKE COVER NOW...MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4381 8461 4381 8477 4416 8508 4416 8501
      4417 8500 4416 8461 4383 8459
TIME...MOT...LOC 0144Z 317DEG 30KT 4413 8487

$$

LAURENS
2 follow-up statements
600 
WWUS53 KGRR 260200
SVSGRR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1000 PM EDT WED JUL 25 2012

MIC035-260245-
/O.CON.KGRR.TO.W.0006.000000T0000Z-120726T0245Z/
CLARE MI-
1000 PM EDT WED JUL 25 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN CLARE COUNTY
UNTIL 1045 PM EDT...

AT 956 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR SKEELS...MOVING SOUTHEAST AT 40 MPH.

THIS TORNADO WILL AFFECT MAINLY RURAL AREAS OF NORTHEASTERN CLARE
COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING OBJECTS.

TORNADOES ARE DIFFICULT TO SEE AT NIGHT. DO NOT WAIT TO SEE OR HEAR
THE TORNADO. TAKE COVER NOW...MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 AM EDT
THURSDAY MORNING FOR SOUTHWESTERN MICHIGAN.

LAT...LON 4382 8460 4382 8462 4389 8469 4416 8499
      4417 8498 4416 8461 4383 8459
TIME...MOT...LOC 0201Z 305DEG 35KT 4403 8462

$$

LAURENS
866 
WWUS53 KGRR 260208
SVSGRR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1008 PM EDT WED JUL 25 2012

MIC035-260218-
/O.CAN.KGRR.TO.W.0006.000000T0000Z-120726T0245Z/
CLARE MI-
1008 PM EDT WED JUL 25 2012

...THE TORNADO WARNING FOR NORTHEASTERN CLARE COUNTY IS CANCELLED...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
BEEN CANCELLED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN
EFFECT FOR THE AREA... GUSTY WINDS ARE STILL POSSIBLE WITH
THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 AM EDT
THURSDAY MORNING FOR SOUTHWESTERN MICHIGAN.

LAT...LON 4382 8460 4382 8462 4389 8469 4416 8499
      4417 8498 4416 8461 4383 8459
TIME...MOT...LOC 0208Z 305DEG 35KT 4399 8454

$$

LAURENS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 8:12 PM EDTSpecial Weather StatementGRRClare, Lake, Mason, Osceola63 min
Jul 25, 8:19 PM EDTSpecial Marine WarningGRR41 min
Jul 25, 9:34 PM EDTSevere Thunderstorm WarningGRRClare, Osceola56 min
Jul 25, 9:40 PM EDTSpecial Marine WarningGRR95 min
Jul 25, 9:49 PM EDTFlash Flood WarningGRRMason11 hr
Jul 25, 9:50 PM EDTSevere Thunderstorm WarningGRRMason, Oceana70 min
Jul 25, 10:44 PM EDTSevere Thunderstorm WarningGRRClare, Osceola61 min
Jul 25, 10:56 PM EDTFlash Flood WarningGRRClare10 hr
Jul 25, 11:23 PM EDTSpecial Weather StatementGRRIsabella, Montcalm67 min
Jul 25, 11:40 PM EDTSevere Thunderstorm WarningGRRGratiot, Isabella, Mecosta, Montcalm80 min
Jul 26, 12:30 AM EDTSpecial Marine WarningGRR2 hr
Jul 26, 3:20 AM EDTSpecial Marine WarningGRR100 min
Jul 26, 4:14 AM EDTSevere Thunderstorm WarningGRRMuskegon, Ottawa37 min

Nearby

Tornado Warnings in Michigan, 2012Every tornado warning in 2012Tornadoes in 2012

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.