Alert archive / Michigan / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 22, NWS Grand Rapids, MI

May 12, 2000Lake County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at May 12, 2000, 2:25 PM EDT for Lake County, Michigan. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: May 12, 2000, 2:25 PM EDT (18:25 UTC)
Expired: May 12, 2000, 2:50 PM EDT
In force: 25 min
Issued by: NWS Grand Rapids, MI
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Lake County, MI

The radar

The NCL Michigan radar (KAPX), 130 km from the middle of the area, began a volume at 18:24 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 12, 1:00 PM EDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 6.4 hours before the alert went out and 184 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: 15 J/kg
Mixed-layer CIN: -508 J/kg
Mixed-layer LCL: 545 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KGRR 121824 COR
SVRGRR
MIC085-121850-

BULLETIN - IMMEDIATE BROADCAST REQUESTED..CORRECTED HEADER
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
225 PM EDT FRI MAY 12 2000

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LAKE COUNTY IN WEST CENTRAL MICHIGAN

* UNTIL 250 PM EDT

* AT 220 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 27 MILES WEST OF LUTHER...OR ABOUT 11 MILES
  SOUTHEAST OF MANISTEE...MOVING EAST AT 60 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   LUTHER AROUND 240 PM EDT

THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS AND LARGE HAIL.

LAT...LON 4416 8603 4389 8602 4395 8560 4416 8561

MWH/EJO

NNNN

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Grand Rapids, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at May 12, 11:50 AM EDT, 2 hours 35 minutes earlier.

Area forecast discussion, May 12, 11:50 AM EDT, 2 hours 35 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1150 AM EDT FRI MAY 12 2000

QUICK UPDATE...JUST TO TWEAK TEMPS AND POPS. NO MAJOR CHANGES.
WAITING FOR THINGS TO POP THIS AFTERNOON. BEST INSTABILITY ACROSS
SOUTHERN TIER...MAINLY SOUTH OF I94....THO 70 DEGREE DEW POINTS HAVE
MADE IT ALL THE WAY UP TO BIG RAPIDS IN NOTHERN PART OF GRR FA.
LOOKS LIKE A BUSY AFT/EVE.

*** THE NWS OFFICES IN MICHIGAN ARE CONDUCTING A USER SURVEY TO LEARN
MORE ABOUT HOW THE AREA FORECAST DISCUSSION (AFD) IS UTILIZED. PLEASE
COMPLETE THE SHORT QUESTIONNAIRE AT WWW.CRH.NOAA.GOV/GRR/AFD.HTM THE
FEEDBACK WE RECEIVE WILL HELP US PROVIDE A BETTER PRODUCT FOR YOU.
IF YOU HAVE QUESTIONS OR IF YOU NEED A PAPER VERSION OF THE
QUESTIONNAIRE PLEASE CONTACT RANDY GRAHAM AT (616) 949-0643 X766 ***

.GRR...NONE

OSTUNO

In the hours before

Local storm report, May 12, 11:23 AM EDT, 3 hours 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
1123 AM EDT FRI MAY 12 2000

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0327 AM    1 S CUTLERVILLE           MI   .88 INCH HAIL
05/12/00   KENT                          0230 AM    TWIN LAKE                 MI   1.00 INCH HAIL
05/12/00   MUSKEGON                      0240 AM    HOLTON                    MI   .88 INCH HAIL
05/12/00   MUSKEGON                      0250 AM    BRUNSWICK                 MI   .88 INCH HAIL
05/12/00   NEWAYGO

0341 AM    4 N IONIA                 MI   WIND DAMAGE
05/12/00   IONIA                          16" TO 18" TREES DOWN ON
                                          M66

0330 AM    5 NE GRAND RAPIDS         MI   WIND DAMAGE
05/12/00   KENT                           MCDONALDS SIGN BLOWN DOWN

0215 AM    3 SE SHELBY               MI   WIND DAMAGE
05/12/00   OCEANA                         TREES DOWN AND TREE TOPS
                                          6" TO 8" BLOWN ONTO STONY
                                          LAKE RD.

MWH

Local storm report, May 12, 11:23 AM EDT, 3 hours 2 minutes before

PRELIMINARY LOCAL STORM REPORT..CORRECTED FORMAT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
1123 AM EDT FRI MAY 12 2000

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0327 AM    1 S CUTLERVILLE           MI   .88 INCH HAIL
05/12/00   KENT

0230 AM    TWIN LAKE                 MI   1.00 INCH HAIL
05/12/00   MUSKEGON

0240 AM    HOLTON                    MI   .88 INCH HAIL
05/12/00   MUSKEGON

0250 AM    BRUNSWICK                 MI   .88 INCH HAIL
05/12/00   NEWAYGO

0341 AM    4 N IONIA                 MI   WIND DAMAGE
05/12/00   IONIA                          16 TO 18 TREES DOWN ON
                                          M66
0330 AM    5 NE GRAND RAPIDS         MI   WIND DAMAGE
05/12/00   KENT                           MCDONALDS SIGN BLOWN DOWN

0215 AM    3 SE SHELBY               MI   WIND DAMAGE
05/12/00   OCEANA                         TREES DOWN AND TREE TOPS
                                          6 TO 8 BLOWN ONTO STONY
                                          LAKE RD.

MWH

Special weather statement, May 12, 1:30 PM EDT, 55 minutes before

LMZ849-867-MIZ037>040-043>046-050>052-122200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
130 PM EDT FRI MAY 12 2000

A TORNADO WATCH HAS BEEN ISSUED FOR THE FOLLOWING COUNTIES IN
SOUTHWEST LOWER MICHIGAN.

IN WEST CENTRAL MICHIGAN
     OCEANA...MASON...MUSKEGON...NEWAYGO AND LAKE

IN CENTRAL MICHIGAN
     OSCEOLA...MECOSTA...MONTCALM...GRATIOT...ISABELLA AND CLARE

A TORNADO WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR TORNADO
DEVELOPMENT.  STAY TUNED FOR UPDATES AND POSSIBLE WARNINGS.

MWH

Special weather statement, May 12, 1:46 PM EDT, 39 minutes before

LMZ849-867-MIZ037>040-043>046-050>052-122200-

SPECIAL WEATHER STATEMENT...CORRECTED TO TAKE OUT MUSKEGON COUNTY
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
146 PM EDT FRI MAY 12 2000

A TORNADO WATCH HAS BEEN ISSUED FOR THE FOLLOWING COUNTIES IN
SOUTHWEST LOWER MICHIGAN UNTIL 6PM EDT.

IN WEST CENTRAL MICHIGAN
     OCEANA...MASON...NEWAYGO AND LAKE

IN CENTRAL MICHIGAN
     OSCEOLA...MECOSTA...MONTCALM...GRATIOT...ISABELLA AND CL0ARE

A TORNADO WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR TORNADO
DEVELOPMENT.  STAY TUNED FOR UPDATES AND POSSIBLE WARNINGS.

MWH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 12, 2:00 AM EDT	Severe Thunderstorm Warning	GRR	Oceana	45 min
May 12, 2:10 AM EDT	Severe Thunderstorm Warning	GRR	Muskegon	50 min
May 12, 2:27 AM EDT	Severe Thunderstorm Warning	GRR	Newaygo	48 min
May 12, 2:41 AM EDT	Severe Thunderstorm Warning	GRR	Ottawa	49 min
May 12, 2:55 AM EDT	Severe Thunderstorm Warning	GRR	Allegan	50 min
May 12, 3:05 AM EDT	Severe Thunderstorm Warning	GRR	Kent	40 min
May 12, 3:20 AM EDT	Severe Thunderstorm Warning	GRR	Ionia, Montcalm	40 min
May 12, 1:45 PM EDT	Severe Thunderstorm Warning	GRR	Mason	30 min
May 12, 2:50 PM EDT	Severe Thunderstorm Warning	GRR	Osceola	25 min
May 12, 3:18 PM EDT	Severe Thunderstorm Warning	GRR	Clare	27 min
May 12, 4:27 PM EDT	Severe Thunderstorm Warning	GRR	Clare	33 min
May 12, 6:08 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Ottawa	37 min
May 12, 6:45 PM EDT	Severe Thunderstorm Warning	GRR	Allegan	30 min
May 12, 7:08 PM EDT	Severe Thunderstorm Warning	GRR	Newaygo	37 min
May 12, 7:13 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Barry	32 min
May 12, 7:26 PM EDT	Flash Flood Warning	GRR	Allegan	3 hr
May 12, 7:54 PM EDT	Tornado Warning	GRR	Allegan, Kalamazoo	51 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2000 Every severe thunderstorm warning in 2000

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.