Alert archive / Michigan / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 9, NWS Grand Rapids, MI

April 15, 1994Calhoun County, Eaton County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at Apr 15, 1994, 9:46 AM EDT for Calhoun County, Eaton County, Michigan. It was in force for 59 min.

The area

The counties it named.

The facts

Issued: Apr 15, 1994, 9:46 AM EDT (13:46 UTC)
Expired: Apr 15, 1994, 10:45 AM EDT
In force: 59 min
Issued by: NWS Grand Rapids, MI
Area: Whole counties

Counties Calhoun County, MI, Eaton County, MI

The nearest sounding before it

Detroit, MI (KFNT), launched 12:00Z, 1.8 hours before the alert went out and 127 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: 1973 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 77 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

In the hours before

Special weather statement, Apr 15, 7:17 AM EDT, 2 hours 29 minutes before

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Special weather statement, Apr 15, 7:20 AM EDT, 2 hours 26 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Special weather statement, Apr 15, 7:38 AM EDT, 2 hours 8 minutes before

MIZ051-056-057-058-064-065-071-072-501-151230-

SPECIAL WEATHER STATEMENT
FOR SOUTHWEST LOWER MICHIGAN
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
737 AM EDT FRI APR 15 1994

...THUNDERSTORMS CONTINUED IN PART OF SOUTHWEST LOWER MICHIGAN...

AT 735 AM EDT... WEATHER RADAR INDICATED STRONG THUNDERSTORMS MOVING
ON SHORE NEAR SOUTH HAVEN... 35 MILES NORTHWEST OF KALAMAZOO AND NEAR
NUNICA AND COOPERSVILLE... 15 MILES NORTHWEST OF GRAND RAPIDS. THESE
STORMS MAY CONTAIN SMALL HAIL AND GUSTY WINDS OF 45 MPH. THE STORMS
WERE MOVING TOWARD THE NORTHEAST AT 25 MPH AND WILL REACH THE
COMMUNITIES OF PULLMAN BY 800 AM AND ALLEGAN BY 815 AM. THE STORM NEAR
COOPERSVILLE WILL REACH THE COMMUNITIES OF SPARTA BY 800 AM AND CEDAR
SPRINGS BY 830 AM.

THESE STORMS CONTAIN GUSTY WINDS AND DANGEROUS LIGHTNING. IF YOU ARE IN
THE PATH OF THESE STORMS YOU SHOULD MOVE INSIDE TO AVOID THE DANGERS OF
LIGHTNING.

Special weather statement, Apr 15, 8:29 AM EDT, 1 hour 17 minutes before

MIZ073-080-131315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LANSING MI
829 AM EDT FRI APR 15 1994

...THUNDERSTORMS DEVELOPING IN THE BATTLE CREEK AREA...

WEATHER RADAR AT 820 AM EDT INDICATED THAT THUNDERSTORMS WERE
DEVELOPING IN THE BATTLE CREEK AND COLDWATER AREAS. THE STORMS WERE
LOCATED FROM ABOUT 10 MILES NORTHWEST OF BATTLE CREEK NEAR BEDFORD
SOUTH TO NEAR ATHENS IN SOUTHWEST CALHOUN AND BRONSON IN WESTERN
BRANCH COUNTY. THE STORMS WERE MOVING FROM THE SOUTHWEST AT 40 MILES
AN HOUR AND WILL AFFECT BATTLE CREEK BY 840 AM AND COLDWATER BY
850 AM EDT.

THESE STORMS MAY CONTAIN STRONG WINDS UP TO NEAR 50 MILES AN HOUR AND
SMALL HAIL OF 1/2 AN INCH.

WHEN THUNDERSTORMS ARE OCCURRING...MOVE INDOORS TO PROTECT YOURSELF
FROM THE DANGERS OF LIGHTNING. DO NOT USE TELEPHONES OR ELECTRICAL
APPLIANCES EXCEPT IN EMERGENCIES.

STAY TUNED TO NATIONAL WEATHER SERVICE WEATHER RADIO FOR FURTHER
UPDATES AND STATEMENTS.

PL

Special weather statement, Apr 15, 8:44 AM EDT, 1 hour 2 minutes before

MIZ073-080-131315-

SPECIAL WEATHER STATEMENT...UPDATED...
NATIONAL WEATHER SERVICE LANSING MI
845 AM EDT FRI APR 15 1994

...THUNDERSTORMS DEVELOPING IN THE BATTLE CREEK AREA...

WEATHER RADAR AT 820 AM EDT INDICATED THAT THUNDERSTORMS WERE
DEVELOPING IN THE BATTLE CREEK AREA. THE STORMS WERE LOCATED FROM
ABOUT 10 MILES NORTHWEST OF BATTLE CREEK NEAR BEDFORD AND WEST OF
BRONSON IN WESTERN BRANCH COUNTY. THE STORMS WERE MOVING FROM THE
SOUTHWEST AT 40 MILES AN HOUR AND WILL AFFECT BATTLE CREEK BETWEEN
845 AM AND 900 AM EDT.

THESE STORMS MAY CONTAIN STRONG WINDS UP TO NEAR 50 MILES AN HOUR AND
SMALL HAIL OF UP TO 1/2 AN INCH.

WHEN THUNDERSTORMS ARE OCCURRING...MOVE INDOORS TO PROTECT YOURSELF
FROM THE DANGERS OF LIGHTNING. DO NOT USE TELEPHONES OR ELECTRICAL
APPLIANCES EXCEPT IN EMERGENCIES.

STAY TUNED TO NATIONAL WEATHER SERVICE WEATHER RADIO FOR FURTHER
UPDATES AND STATEMENTS.

PL

Special weather statement, Apr 15, 9:24 AM EDT, 22 minutes before

MIZ046-052-059-066-067-073-074-080-081-131415-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LANSING MI
925 AM EDT FRI APR 15 1994

...THUNDERSTORMS HEADING TOWARD SOUTH CENTRAL LOWER MICHIGAN...

AT 920...WEATHER RADAR SHOWED A LINE OF THUNDERSTORMS FROM JUST WEST OF
HOUGHTON LAKE TO GRAND RAPIDS TO JUST WEST OF BATTLE CREEK. INDIVIDUAL
THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT ABOUT 30 MILES AN
HOUR...WHILE THE LINE MOVED EAST AT 20 MILES AN HOUR.  PEOPLE IN THE
COMMUNITIES OF WEIDMAN IN ISABELLA COUNTY...BELLVUE IN EATON COUNTY AND
BATTLE CREEK SHOULD EXPECT THUNDERSTORMS TO MOVE OVERHEAD BY 945 AM.

THESE STORMS MAY CONTAIN STRONG WINDS TO NEAR 50 MILES AN HOUR AND
SMALL HAIL OF UP TO 1/2 AN INCH.

WHEN THUNDERSTORMS ARE OCCURRING...MOVE INDOORS TO PROTECT YOURSELF
FROM THE DANGERS OF LIGHTNING. DO NOT USE TELEPHONES OR ELECTRICAL
APPLIANCES EXCEPT IN EMERGENCIES.

STAY TUNED TO NATIONAL WEATHER SERVICE RADION FOR FURTHER UPDATES AND
STATEMENTS.

DESROSIERS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 15, 7:57 AM EDT	Severe Thunderstorm Warning	GRR	Allegan, Ottawa	30 min
Apr 15, 8:29 AM EDT	Severe Thunderstorm Warning	GRR	Montcalm	31 min
Apr 15, 8:54 AM EDT	Severe Thunderstorm Warning	GRR	Kent	49 min
Apr 15, 9:01 AM EDT	Severe Thunderstorm Warning	GRR	Montcalm	44 min
Apr 15, 9:58 AM EDT	Severe Thunderstorm Warning	GRR	Ingham	47 min
Apr 15, 10:04 AM EDT	Severe Thunderstorm Warning	GRR	Gratiot	41 min
Apr 15, 10:37 AM EDT	Severe Thunderstorm Warning	GRR	Jackson	78 min
Apr 15, 10:37 AM EDT	Severe Thunderstorm Warning	GRR	Ingham	38 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1994 Every severe thunderstorm warning in 1994

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.