Alert archive / Michigan / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 21, NWS Grand Rapids, MI

May 3, 2012Kent County, Newaygo County, Ottawa County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at May 3, 2012, 5:13 PM EDT for Kent County, Newaygo County, Ottawa County, Michigan. It was in force for 41 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: May 3, 2012, 5:13 PM EDT (21:13 UTC)
Expired: May 3, 2012, 5:54 PM EDT
In force: 41 min
Issued by: NWS Grand Rapids, MI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Kent County, MI, Newaygo County, MI, Ottawa County, MI

The radar

The Grand Rapids radar (KGRR), 47 km from the middle of the area, began a volume at 21:16 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.

Issued	Product	Office	Lasted
May 3, 12:41 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
May 3, 2:35 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 9.2 hours before the alert went out and 201 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1476 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 948 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 212 m²/s²
0-3 km storm-relative helicity: 233 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.3

Open this sounding in Storm Lab

The text

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

808 
WUUS53 KGRR 032113
SVRGRR
MIC081-123-139-032215-
/O.NEW.KGRR.SV.W.0021.120503T2113Z-120503T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
513 PM EDT THU MAY 3 2012

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN KENT COUNTY IN SOUTHWEST MICHIGAN...
  SOUTHERN NEWAYGO COUNTY IN WEST CENTRAL MICHIGAN...
  NORTHEASTERN OTTAWA COUNTY IN SOUTHWEST MICHIGAN...

* UNTIL 615 PM EDT

* AT 512 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING LARGE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 7 MILES NORTHEAST OF WHITEHALL
  TO 11 MILES SOUTHWEST OF FREMONT TO MUSKEGON..AND MOVING EAST AT 60
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  NEWAYGO...            FREMONT...            SPARTA...
  CEDAR SPRINGS...      ROCKFORD...           CHESTER TWP...
  CONKLIN...            NEWYAGO STATE PARK... ASHLAND TWP...
  ENSLEY TWP...         REEMAN...             BRIDGETON...
  GRANT...              CROTON...             CASNOVIA...
  SPENCER TWP...        SOLON TWP...          OAKFIELD TWP...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS CAN PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES
PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT
DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4355 8604 4353 8556 4330 8556 4329 8531
      4309 8531 4311 8597 4312 8598 4312 8591
      4321 8591 4321 8579 4329 8579 4330 8604
TIME...MOT...LOC 2113Z 273DEG 51KT 4349 8623 4333 8604
          4319 8625
WIND...HAIL 60MPH 1.00IN

$$

JK

2 follow-up statements

793 
WWUS53 KGRR 032132
SVSGRR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
532 PM EDT THU MAY 3 2012

MIC081-123-139-032215-
/O.CON.KGRR.SV.W.0021.000000T0000Z-120503T2215Z/
KENT MI-NEWAYGO MI-OTTAWA MI-
532 PM EDT THU MAY 3 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
OTTAWA...SOUTHERN NEWAYGO AND NORTHERN KENT COUNTIES UNTIL 615 PM
EDT...

AT 529 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 7 MILES SOUTHEAST
OF NEWAYGO...MOVING EAST AT 70 MPH.

LOCATIONS IMPACTED INCLUDE...
  NEWAYGO...            FREMONT...            SPARTA...
  CEDAR SPRINGS...      ROCKFORD...           CHESTER TWP...
  CONKLIN...            NEWYAGO STATE PARK... ASHLAND TWP...
  ENSLEY TWP...         REEMAN...             BRIDGETON...
  GRANT...              CROTON...             CASNOVIA...
  SPENCER TWP...        SOLON TWP...          OAKFIELD TWP...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
THURSDAY EVENING FOR SOUTHWESTERN MICHIGAN. A SEVERE THUNDERSTORM
WATCH ALSO REMAINS IN EFFECT UNTIL 600 PM EDT THURSDAY EVENING FOR
WEST CENTRAL MICHIGAN.

LAT...LON 4355 8604 4353 8556 4330 8556 4329 8531
      4309 8531 4311 8597 4312 8598 4312 8591
      4321 8591 4321 8579 4329 8579 4330 8604
TIME...MOT...LOC 2132Z 265DEG 59KT 4335 8563
WIND...HAIL 60MPH 1.00IN

$$

93

729 
WWUS53 KGRR 032154
SVSGRR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
554 PM EDT THU MAY 3 2012

MIC081-123-139-032204-
/O.CAN.KGRR.SV.W.0021.000000T0000Z-120503T2215Z/
KENT MI-NEWAYGO MI-OTTAWA MI-
554 PM EDT THU MAY 3 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN OTTAWA...SOUTHERN
NEWAYGO AND NORTHERN KENT COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
THURSDAY EVENING FOR SOUTHWESTERN MICHIGAN.

LAT...LON 4355 8604 4353 8556 4330 8556 4329 8531
      4309 8531 4311 8597 4312 8598 4312 8591
      4321 8591 4321 8579 4329 8579 4330 8604
TIME...MOT...LOC 2154Z 265DEG 59KT 4338 8513

$$

93

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 1:09 AM EDT	Special Weather Statement	GRR	Muskegon, Oceana	66 min
May 3, 1:42 AM EDT	Special Weather Statement	GRR	Lake, Mason, Oceana	78 min
May 3, 2:55 AM EDT	Special Weather Statement	GRR	Clare, Gratiot, Isabella, Lake, Mason, Mecosta and 1 more	80 min
May 3, 4:04 AM EDT	Special Weather Statement	GRR	Clare, Lake, Osceola	71 min
May 3, 4:39 AM EDT	Special Weather Statement	GRR	Clare, Osceola	66 min
May 3, 4:42 AM EDT	Special Weather Statement	GRR	Lake, Mason	63 min
May 3, 5:30 AM EDT	Special Weather Statement	GRR	Clare, Isabella, Lake, Mecosta, Osceola	60 min
May 3, 5:42 AM EDT	Areal Flood Advisory	GRR	Lake, Mason, Osceola	10 hr
May 3, 6:08 AM EDT	Severe Thunderstorm Warning	GRR	Clare, Isabella, Lake, Mecosta, Newaygo, Osceola	67 min
May 3, 7:10 AM EDT	Special Weather Statement	GRR	Clare, Osceola	65 min
May 3, 8:50 AM EDT	Flash Flood Warning	GRR	Lake	4 hr
May 3, 10:22 AM EDT	Flash Flood Watch	GRR	Allegan, Barry, Calhoun, Clare, Clinton, Eaton and 17 more	22 hr
May 3, 10:56 AM EDT	River Flood Advisory	GRR	Ingham	58 hr
May 3, 10:56 AM EDT	River Flood Advisory	GRR	Mason	5 days
May 3, 10:56 AM EDT	River Flood Advisory	GRR	Osceola	6 days
May 3, 11:54 AM EDT	Special Weather Statement	GRR	Mason	51 min
May 3, 12:26 PM EDT	Special Weather Statement	GRR	Lake	64 min
May 3, 12:37 PM EDT	Flash Flood Warning	GRR	Mason	6 hr
May 3, 12:38 PM EDT	Special Marine Warning	GRR		41 min
May 3, 12:50 PM EDT	Flash Flood Warning	GRR	Lake	6 hr
May 3, 1:09 PM EDT	Severe Thunderstorm Warning	GRR	Mason	41 min
May 3, 1:23 PM EDT	Severe Thunderstorm Warning	GRR	Lake	52 min
May 3, 1:56 PM EDT	Special Weather Statement	GRR	Newaygo	19 min
May 3, 2:03 PM EDT	Severe Thunderstorm Warning	GRR	Osceola	57 min
May 3, 2:57 PM EDT	Severe Thunderstorm Warning	GRR	Oceana	63 min
May 3, 3:01 PM EDT	Flash Flood Warning	GRR	Osceola	5 hr
May 3, 3:02 PM EDT	Severe Thunderstorm Warning	GRR	Newaygo	43 min
May 3, 3:08 PM EDT	Special Marine Warning	GRR		82 min
May 3, 3:20 PM EDT	Special Weather Statement	GRR	Clare, Gratiot, Isabella, Kent, Mecosta, Montcalm and 3 more	115 min
May 3, 3:21 PM EDT	Severe Thunderstorm Warning	GRR	Clare	54 min
May 3, 3:36 PM EDT	Severe Thunderstorm Warning	GRR	Mecosta	54 min
May 3, 4:16 PM EDT	Severe Thunderstorm Warning	GRR	Isabella	38 min
May 3, 4:32 PM EDT	Special Marine Warning	GRR		59 min
May 3, 4:38 PM EDT	Severe Thunderstorm Warning	GRR	Muskegon	52 min
May 3, 4:46 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Barry	44 min
May 3, 5:30 PM EDT	Severe Thunderstorm Warning	GRR	Barry, Clinton, Eaton, Ionia	60 min
May 3, 5:49 PM EDT	Severe Thunderstorm Warning	GRR	Barry, Calhoun, Kalamazoo	56 min
May 3, 6:21 PM EDT	Severe Thunderstorm Warning	GRR	Clinton, Gratiot, Ionia, Montcalm	54 min
May 3, 6:30 PM EDT	Severe Thunderstorm Warning	GRR	Clinton, Eaton, Ingham	60 min
May 3, 6:59 PM EDT	Areal Flood Advisory	GRR	Clinton	16 hr
May 3, 7:01 PM EDT	Special Marine Warning	GRR		119 min
May 3, 7:30 PM EDT	Severe Thunderstorm Warning	GRR	Ingham	45 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2012 Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.