Alert archive / Michigan / Tornado Warnings in 2011

Tornado Warning 8, NWS Grand Rapids, MI

May 29, 2011Eaton County, Michigan

NWS Grand Rapids, MI issued this tornado warning at May 29, 2011, 4:47 PM EDT for Eaton County, Michigan. It was in force for 28 min. 4 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
May 29, 2011, 4:47 PM EDT (20:47 UTC)
Expired
May 29, 2011, 5:15 PM EDT
In force
28 min
Issued by
NWS Grand Rapids, MI
Area
Storm-based polygon

County Eaton County, MI

The radar

The Grand Rapids radar (KGRR), 62 km from the middle of the area, began a volume at 20:49 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
May 29, 4:54 PM EDTTSTM WND DMG6 Ese Charlotte, MIA THREE AND A HALF FOOT HEALTHY TREE IS DOWN.
May 29, 5:00 PM EDTTSTM WND DMG4 S Eaton Rapids, MINUMEROUS TREES DOWN BLOCKING ROAD NEAR THE INTERSECTION OF BELLEVUE HIGHWAY AND HOUSTON ROAD.
May 29, 5:02 PM EDTTSTM WND DMG4 Nnw Eaton Rapids, MIONE HOME COMPLETELY DESTROYED. 3 OTHER HOMES DAMAGED.
May 29, 5:12 PM EDTTSTM WND DMG4 Sse Eaton Rapids, MISCATTERED TREE DAMAGE AND POWER LINES DOWN NEAR TUCKER AND BELLEVUE ROADS. TREES ARE MAINLY 5 TO 6 INCHES IN DIAMETER AND MAINLY HEALTHY.

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
May 29, 1:29 PM EDTTornado WatchSPC7 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 8.8 hours before the alert went out and 119 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 2011-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 12 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 12:00Z on 2011-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 128 square meters per square second.19395878Sfc1 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
12 J/kg
Mixed-layer CIN
-294 J/kg
Mixed-layer LCL
499 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
128 m²/s²
0-3 km storm-relative helicity
298 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

809 
WFUS53 KGRR 292047
TORGRR
MIC045-292115-
/O.NEW.KGRR.TO.W.0008.110529T2047Z-110529T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
447 PM EDT SUN MAY 29 2011

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A

* TORNADO WARNING FOR...
  EATON COUNTY IN SOUTH CENTRAL MICHIGAN...

* UNTIL 515 PM EDT

* AT 445 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A SEVERE SQUALL LINE CAPABLE OF PRODUCING BRIEF
  RAIN-WRAPPED TORNADOES IN ADDITION TO WIDESPREAD STRAIGHT LINE WIND
  DAMAGE. THIS DANGEROUS STORM WAS LOCATED NEAR BELLEVUE...AND 
  MOVING EAST AT 60 MPH.

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
  CHARLOTTE...          EATON RAPIDS...       GRAND LEDGE...
  BELLEVUE...           KALAMO...             BROOKFIELD...
  WAVERLY...            MULLIKEN...           DIMONDALE...
  OLIVET...             VERMONTVILLE...       POTTERVILLE...
  DELTA MILLS...        HOYTVILLE...          MILLETT...
  LITTLE VENICE...      NEEDMORE...           WEST WINDSOR...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS LINE OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. SQUALL LINE TORNADOES ARE OFTEN
HIDDEN BY HEAVY RAIN WITHIN THE SQUALL LINE. 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 4266 8507 4277 8489 4277 8460 4242 8460
      4242 8507
TIME...MOT...LOC 2046Z 253DEG 50KT 4238 8495

$$

TJT
2 follow-up statements
261 
WWUS53 KGRR 292106
SVSGRR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
506 PM EDT SUN MAY 29 2011

MIC045-292115-
/O.CON.KGRR.TO.W.0008.000000T0000Z-110529T2115Z/
EATON MI-
506 PM EDT SUN MAY 29 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN EATON COUNTY UNTIL
515 PM EDT...

AT 503 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR EATON RAPIDS...MOVING EAST AT 55 MPH.

THIS TORNADO WILL AFFECT MAINLY RURAL AREAS OF EASTERN EATON 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.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY EVENING FOR
SOUTHWESTERN MICHIGAN.

LAT...LON 4242 8491 4263 8491 4277 8489 4277 8460
      4242 8460
TIME...MOT...LOC 2106Z 248DEG 56KT 4250 8457

$$

DUKE
067 
WWUS53 KGRR 292115
SVSGRR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
515 PM EDT SUN MAY 29 2011

MIC045-292125-
/O.EXP.KGRR.TO.W.0008.000000T0000Z-110529T2115Z/
EATON MI-
515 PM EDT SUN MAY 29 2011

...THE TORNADO WARNING FOR EASTERN EATON COUNTY HAS EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA. HOWEVER...WIND GUSTS OF 50 TO 60 MPH ARE STILL POSSIBLE WITH 
THIS THUNDERSTORM OVER EASTERN EATON COUNTY THROUGH 520 PM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY EVENING FOR
SOUTHWESTERN MICHIGAN.

LAT...LON 4242 8491 4263 8491 4277 8489 4277 8460
      4242 8460
TIME...MOT...LOC 2115Z 248DEG 56KT 4255 8439

$$

DUKE

The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 9:38 PM EDTRiver Flood AdvisoryGRRJackson61 hr
May 29, 11:12 AM EDTFlood WatchGRRAllegan, Barry, Calhoun, Clinton, Eaton, Ingham and 6 more11 hr
May 29, 1:21 PM EDTSpecial Marine WarningGRR84 min
May 29, 1:39 PM EDTSpecial Weather StatementGRRAllegan, Van Buren51 min
May 29, 2:25 PM EDTSpecial Weather StatementGRRAllegan, Ottawa, Van Buren80 min
May 29, 2:38 PM EDTFlash Flood WarningGRRAllegan, Van Buren5 hr
May 29, 2:44 PM EDTSpecial Marine WarningGRR72 min
May 29, 3:14 PM EDTSpecial Weather StatementGRRAllegan, Barry, Calhoun, Ionia, Kalamazoo, Van Buren61 min
May 29, 3:27 PM EDTAreal Flood AdvisoryGRRBarry, Calhoun, Eaton, Ingham, Jackson, Kalamazoo12 hr
May 29, 3:58 PM EDTTornado WarningGRRKalamazoo47 min
May 29, 4:08 PM EDTSevere Thunderstorm WarningGRRBarry52 min
May 29, 4:16 PM EDTTornado WarningGRRKalamazoo31 min
May 29, 4:25 PM EDTTornado WarningGRRBarry, Calhoun35 min
May 29, 4:54 PM EDTTornado WarningGRRIngham, Jackson51 min
May 29, 5:01 PM EDTAreal Flood AdvisoryGRRClinton12 hr
May 29, 5:50 PM EDTFlash Flood WarningGRRClinton, Eaton, Ingham, Ionia6 hr
May 29, 7:55 PM EDTRiver Flood WarningGRRKent5 days

Nearby

Tornado Warnings in Michigan, 2011Every tornado warning in 2011Tornadoes in 2011

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.