Alert archive / Michigan / Tornado Warnings in 2012

Tornado Warning 3, NWS Grand Rapids, MI

March 12, 2012Allegan County, Barry County, Michigan

NWS Grand Rapids, MI issued this tornado warning at Mar 12, 2012, 5:59 PM EDT for Allegan County, Barry County, Michigan. It was in force for 44 min. 2 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
Mar 12, 2012, 5:59 PM EDT (21:59 UTC)
Expired
Mar 12, 2012, 6:43 PM EDT
In force
44 min
Issued by
NWS Grand Rapids, MI
Area
Storm-based polygon

Counties Allegan County, MI, Barry County, MI

The radar

The Grand Rapids radar (KGRR), 36 km from the middle of the area, began a volume at 21:59 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
Mar 12, 6:08 PM EDTHAIL 1Plainwell, MIREPORT FROM PLAINWELL HIGH SCHOOL OF DIME TO QUARTER SIZE HAIL.
Mar 12, 6:18 PM EDTHAIL 0.25Delton, MI

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
Mar 12, 4:22 PM EDTTornado WatchSPC7 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 10.0 hours before the alert went out and 163 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 12:00Z on 2012-03-12Temperature 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 12:00Z on 2012-03-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 124 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
1981 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
124 m²/s²
0-3 km storm-relative helicity
86 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.

143 
WFUS53 KGRR 122159
TORGRR
MIC005-015-122300-
/O.NEW.KGRR.TO.W.0003.120312T2159Z-120312T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
559 PM EDT MON MAR 12 2012

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN ALLEGAN COUNTY IN SOUTHWEST MICHIGAN...
  BARRY COUNTY IN SOUTHWEST MICHIGAN...

* UNTIL 700 PM EDT

* AT 555 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A DEVELOPING     
  TORNADO 6 MILES NORTHWEST OF KALAMAZOO. DOPPLER RADAR SHOWED THIS  
  TORNADO MOVING NORTHEAST AT 50 MPH. MILO IS IN THE PATH OF THIS    
  STORM.

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
  HASTINGS...           MIDDLEVILLE...        NASHVILLE...
  PLAINWELL...          MORGAN...             ASSYRIA...
  BANFIELD...           HICKORY CORNERS...    IRVING...
  LACEY...              DOWLING...            DELTON...
  FREEPORT...           ORANGEVILLE...        WOODLAND...
  CARLTON CENTER...     WELCOME CORNERS...    MILO...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS.

TO REPORT SEVERE WEATHER...CONTACT THE NATIONAL WEATHER SERVICE IN
GRAND RAPIDS AT 1 800 647 3836.

&&

LAT...LON 4256 8554 4277 8555 4277 8508 4242 8507
      4242 8574
TIME...MOT...LOC 2158Z 230DEG 45KT 4238 8562

$$

TJT
3 follow-up statements
474 
WWUS53 KGRR 122211 RRA
SVSGRR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
611 PM EDT MON MAR 12 2012

MIC005-122220-
/O.CAN.KGRR.TO.W.0003.000000T0000Z-120312T2300Z/
ALLEGAN MI-
611 PM EDT MON MAR 12 2012

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

THE STORM WHICH PROMPTED THE WARNING HAS EITHER WEAKENED OR MOVED OUT
OF THE WARNED AREA.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT MONDAY EVENING
FOR SOUTHWESTERN MICHIGAN.

LAT...LON 4277 8555 4277 8508 4242 8507 4242 8554
TIME...MOT...LOC 2210Z 245DEG 37KT 4240 8547

$$

MIC015-122300-
/O.CON.KGRR.TO.W.0003.000000T0000Z-120312T2300Z/
BARRY MI-
611 PM EDT MON MAR 12 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR BARRY COUNTY UNTIL 700 PM
EDT...

AT 608 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A DEVELOPING TORNADO.  THIS DANGEROUS STORM WAS LOCATED NEAR 
RICHLAND... MOVING NORTHEAST AT 45 MPH. PERSONS IN AND AROUND 
HICKORY CORNERS SHOULD PREPARE TO TAKE COVER IMMEDIATELY.

* THIS DANGEROUS STORM WILL BE NEAR...
   HICKORY CORNERS AROUND 620 PM EDT...
   BANFIELD AROUND 625 PM EDT...
   LACEY AROUND 630 PM EDT...

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
  HASTINGS...           MIDDLEVILLE...        NASHVILLE...
  MORGAN...             ASSYRIA...            BANFIELD...
  HICKORY CORNERS...    IRVING...             LACEY...
  DOWLING...            DELTON...             FREEPORT...
  ORANGEVILLE...        WOODLAND...           CARLTON CENTER...
  WELCOME CORNERS...    MILO...               COATS GROVE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...CONTACT THE NATIONAL WEATHER SERVICE IN
GRAND RAPIDS AT 1 800 647 3836.

&&

LAT...LON 4277 8555 4277 8508 4242 8507 4242 8554
TIME...MOT...LOC 2210Z 245DEG 37KT 4240 8547

$$

TJT
846 
WWUS53 KGRR 122228
SVSGRR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
628 PM EDT MON MAR 12 2012

MIC015-122300-
/O.CON.KGRR.TO.W.0003.000000T0000Z-120312T2300Z/
BARRY MI-
628 PM EDT MON MAR 12 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN BARRY COUNTY UNTIL
700 PM EDT...

AT 625 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE 
TRACKING A TORNADO INDICATED ON RADAR.  THIS DANGEROUS STORM WAS 
LOCATED 9 MILES SOUTHWEST OF NASHVILLE...MOVING NORTHEAST
AT 40 MPH.

* THIS DANGEROUS STORM WILL BE NEAR...
   LACEY AROUND 625 PM EDT...
   MAPLE GROVE AROUND 630 PM EDT...
   MAPLE GROVE AROUND 635 PM EDT...

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
  HASTINGS...           NASHVILLE...          MORGAN...
  ASSYRIA...            BANFIELD...           LACEY...
  DOWLING...            QUIMBY...             MAPLE GROVE...
  CEDAR CREEK...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...CONTACT THE NATIONAL WEATHER SERVICE IN
GRAND RAPIDS AT 1 800 647 3836.

&&

LAT...LON 4242 8535 4253 8536 4267 8530 4269 8508
      4242 8507
TIME...MOT...LOC 2227Z 246DEG 34KT 4252 8518

$$

TJT
404 
WWUS53 KGRR 122243
SVSGRR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
643 PM EDT MON MAR 12 2012

MIC015-122253-
/O.CAN.KGRR.TO.W.0003.000000T0000Z-120312T2300Z/
BARRY MI-
643 PM EDT MON MAR 12 2012

...THE TORNADO WARNING FOR EASTERN BARRY COUNTY IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT MONDAY EVENING
FOR SOUTHWESTERN MICHIGAN.

LAT...LON 4242 8535 4253 8536 4267 8530 4269 8508
      4242 8507
TIME...MOT...LOC 2243Z 246DEG 34KT 4258 8499

$$

TJT

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 12, 3:18 AM EDTSmall Craft AdvisoryGRR17 hr
Mar 12, 11:54 AM EDTRiver Flood AdvisoryGRRIonia5 days
Mar 12, 11:54 AM EDTRiver Flood AdvisoryGRRIngham47 hr
Mar 12, 1:32 PM EDTSpecial Marine WarningGRR100 min
Mar 12, 2:18 PM EDTSpecial Weather StatementGRRMuskegon, Oceana57 min
Mar 12, 2:45 PM EDTSpecial Weather StatementGRRMason60 min
Mar 12, 3:01 PM EDTSpecial Weather StatementGRRLake, Newaygo59 min
Mar 12, 3:10 PM EDTSpecial Weather StatementGRRMuskegon50 min
Mar 12, 3:15 PM EDTSpecial Weather StatementGRRNewaygo60 min
Mar 12, 3:43 PM EDTSpecial Weather StatementGRRMecosta62 min
Mar 12, 4:00 PM EDTSevere Thunderstorm WarningGRRMecosta, Montcalm, Newaygo45 min
Mar 12, 4:05 PM EDTSevere Thunderstorm WarningGRRClare, Osceola40 min
Mar 12, 4:33 PM EDTSevere Thunderstorm WarningGRRIsabella21 min
Mar 12, 4:36 PM EDTSpecial Marine WarningGRR84 min
Mar 12, 5:02 PM EDTSpecial Weather StatementGRRVan Buren58 min
Mar 12, 5:24 PM EDTSpecial Weather StatementGRRAllegan66 min
Mar 12, 5:32 PM EDTSevere Thunderstorm WarningGRRVan Buren43 min
Mar 12, 5:38 PM EDTTornado WarningGRRVan Buren16 min
Mar 12, 5:44 PM EDTSpecial Weather StatementGRRMecosta61 min
Mar 12, 5:44 PM EDTTornado WarningGRRKalamazoo43 min
Mar 12, 6:08 PM EDTTornado WarningGRRIsabella, Mecosta37 min
Mar 12, 6:36 PM EDTTornado WarningGRREaton24 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.