Alert archive / Michigan / Tornado Watches in 1998

Tornado Watch 474

May 31, 199867 counties in Michigan

The Storm Prediction Center issued this tornado watch at May 31, 1998, 3:45 AM EDT for 67 counties in Michigan. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: May 31, 1998, 3:45 AM EDT (07:45 UTC)
Expired: May 31, 1998, 10:00 AM EDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 67 counties

Alcona County, MI, Allegan County, MI, Alpena County, MI, Antrim County, MI, Arenac County, MI, Barry County, MI, Bay County, MI, Benzie County, MI, Branch County, MI, Calhoun County, MI, Cass County, MI, Charlevoix County, MI, Cheboygan County, MI, Clare County, MI, Clinton County, MI, Crawford County, MI, Eaton County, MI, Emmet County, MI, Genesee County, MI, Gladwin County, MI, Grand Traverse County, MI, Gratiot County, MI, Hillsdale County, MI, Huron County, MI, Ingham County, MI, Ionia County, MI, Iosco County, MI, Isabella County, MI, Jackson County, MI, Kalamazoo County, MI, Kalkaska County, MI, Kent County, MI, Lake County, MI, Lapeer County, MI, Leelanau County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Manistee County, MI, Mason County, MI, Mecosta County, MI, Midland County, MI, Missaukee County, MI, Monroe County, MI, Montcalm County, MI, Montmorency County, MI, Muskegon County, MI, Newaygo County, MI, Oakland County, MI, Oceana County, MI, Ogemaw County, MI, Osceola County, MI, Oscoda County, MI, Otsego County, MI, Ottawa County, MI, Presque Isle County, MI, Roscommon County, MI, Saginaw County, MI, Saint Clair County, MI, Saint Joseph County, MI, Sanilac County, MI, Shiawassee County, MI, Tuscola County, MI, Van Buren County, MI, Washtenaw County, MI, Wayne County, MI, Wexford County, MI

Warnings issued inside it

43 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
May 31, 4:04 AM EDT	Severe Thunderstorm Warning	APX	Grand Traverse, Leelanau, Wexford	46 min
May 31, 4:16 AM EDT	Severe Thunderstorm Warning	GRR	Mason, Oceana	59 min
May 31, 4:16 AM EDT	Severe Thunderstorm Warning	GRR	Muskegon	59 min
May 31, 4:38 AM EDT	Severe Thunderstorm Warning	GRR	Lake, Newaygo	62 min
May 31, 4:38 AM EDT	Severe Thunderstorm Warning	GRR	Ottawa	62 min
May 31, 4:48 AM EDT	Severe Thunderstorm Warning	APX	Crawford, Kalkaska, Missaukee, Roscommon	47 min
May 31, 4:50 AM EDT	Severe Thunderstorm Warning	APX	Benzie, Manistee	50 min
May 31, 4:56 AM EDT	Severe Thunderstorm Warning	APX	Grand Traverse, Wexford	49 min
May 31, 5:02 AM EDT	Severe Thunderstorm Warning	GRR	Kent, Mecosta, Montcalm	63 min
May 31, 5:02 AM EDT	Severe Thunderstorm Warning	GRR	Osceola	63 min
May 31, 5:02 AM EDT	Severe Thunderstorm Warning	GRR	Allegan	63 min
May 31, 5:18 AM EDT	Severe Thunderstorm Warning	GRR	Barry, Ionia	77 min
May 31, 5:18 AM EDT	Severe Thunderstorm Warning	GRR	Clare, Isabella	77 min
May 31, 5:18 AM EDT	Severe Thunderstorm Warning	GRR	Kalamazoo	77 min
May 31, 5:21 AM EDT	Tornado Warning	APX	Antrim, Kalkaska	49 min
May 31, 5:26 AM EDT	Severe Thunderstorm Warning	APX	Crawford, Roscommon	49 min
May 31, 5:26 AM EDT	Severe Thunderstorm Warning	APX	Otsego	49 min
May 31, 5:37 AM EDT	Severe Thunderstorm Warning	DTX	Midland	53 min
May 31, 5:37 AM EDT	Severe Thunderstorm Warning	GRR	Clinton, Eaton, Gratiot	93 min
May 31, 5:37 AM EDT	Severe Thunderstorm Warning	GRR	Calhoun	93 min
May 31, 5:46 AM EDT	Tornado Warning	APX	Crawford	49 min
May 31, 5:46 AM EDT	Severe Thunderstorm Warning	DTX	Bay, Saginaw, Shiawassee	64 min
May 31, 5:49 AM EDT	Severe Thunderstorm Warning	APX	Montmorency, Oscoda	46 min
May 31, 5:49 AM EDT	Severe Thunderstorm Warning	APX	Ogemaw	46 min
May 31, 5:49 AM EDT	Severe Thunderstorm Warning	GRR	Ingham, Jackson	61 min
May 31, 5:52 AM EDT	Severe Thunderstorm Warning	GRR	Van Buren	48 min
May 31, 6:00 AM EDT	Severe Thunderstorm Warning	IWX	Branch, Hillsdale	50 min
May 31, 6:04 AM EDT	Tornado Warning	APX	Oscoda	51 min
May 31, 6:06 AM EDT	Severe Thunderstorm Warning	DTX	Lenawee, Livingston, Washtenaw	54 min
May 31, 6:07 AM EDT	Severe Thunderstorm Warning	APX	Arenac, Iosco	63 min
May 31, 6:07 AM EDT	Severe Thunderstorm Warning	APX	Alcona, Alpena	63 min
May 31, 6:13 AM EDT	Severe Thunderstorm Warning	DTX	Genesee, Tuscola	57 min
May 31, 6:25 AM EDT	Tornado Warning	DTX	Genesee, Shiawassee	60 min
May 31, 6:31 AM EDT	Severe Thunderstorm Warning	DTX	Huron, Lapeer, Sanilac	59 min
May 31, 6:31 AM EDT	Severe Thunderstorm Warning	DTX	Oakland	59 min
May 31, 6:53 AM EDT	Severe Thunderstorm Warning	DTX	Macomb, Saint Clair, Wayne	57 min
May 31, 6:53 AM EDT	Severe Thunderstorm Warning	DTX	Monroe	57 min
May 31, 6:53 AM EDT	Severe Thunderstorm Warning	GRR	Ingham, Jackson	47 min
May 31, 6:59 AM EDT	Severe Thunderstorm Warning	DTX	Lenawee, Washtenaw	56 min
May 31, 6:59 AM EDT	Severe Thunderstorm Warning	DTX	Livingston	56 min
May 31, 7:33 AM EDT	Tornado Warning	DTX	Macomb, Wayne	42 min
May 31, 7:35 AM EDT	Severe Thunderstorm Warning	GRR	Ingham	40 min
May 31, 8:46 AM EDT	Severe Thunderstorm Warning	DTX	Monroe	34 min

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 7.8 hours before the alert went out and 168 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1677 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 86 m²/s²
0-3 km storm-relative helicity: 154 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.

667 
WWUS9 KMKC 310706
SEL4  
MKC WW 310706
MIZ000-LMZ000-LHZ000-311400-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 474
STORM PREDICTION CENTER NORMAN OK
206 AM CDT SUN MAY 31 1998

THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

   LOWER MICHIGAN                           
   LAKE MICHIGAN                      
   LAKE HURON                         

EFFECTIVE THIS SUNDAY MORNING FROM 245 AM UNTIL 900 AM CDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 105 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 105 STATUTE MILES EAST AND WEST
OF A LINE FROM 10 MILES NORTHEAST OF PELLSTON MICHIGAN TO 30 MILES
SOUTH OF JACKSON MICHIGAN.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. 
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...  CONTINUE...WW 469...WW 471...WW
472...WW 473...

DISCUSSION...DERECHO UNDERWAY ACROSS WI IS MOVING IN EXCESS OF 60KT
AND WILL CROSS MUCH OF NRN LWR MI BETWEEN 08-11Z.  INCREASINGLY
STRONG PRES FALLS AHEAD OF DEEPENING SURFACE LOW SUPPORT CONTINUED
VERY DAMAGING WINDS WITH LINE.  ALSO SUPERCELLS AND TORNADOS ARE
ALSO POSSBILE WITH LINE.


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 90 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. 
MEAN STORM MOTION VECTOR 26050.


...HALES

454,0822 415,0822 415,0863 454,0864

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 31, 12:30 AM EDT	Severe Thunderstorm Watch	SPC	Menominee	6 hr

Nearby

Tornado Watches in Michigan, 1998 Every tornado watch in 1998

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.