Alert archive / Michigan / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 40, NWS Detroit, MI

June 28, 1994Monroe County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at Jun 28, 1994, 9:46 PM EDT for Monroe County, Michigan. It was in force for 14 min.

The area

The counties it named.

The facts

Issued
Jun 28, 1994, 9:46 PM EDT (01:46 UTC)
Expired
Jun 28, 1994, 10:00 PM EDT
In force
14 min
Issued by
NWS Detroit, MI
Area
Whole counties

County Monroe County, MI

The nearest sounding before it

Detroit, MI (KFNT), launched 00:00Z, 1.8 hours before the alert went out and 89 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 00:00Z on 1994-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1181 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 00:00Z on 1994-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 152 square meters per square second.193958Sfc1 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
1181 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
1135 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
152 m²/s²
0-3 km storm-relative helicity
202 m²/s²
Significant tornado parameter
0.9
Supercell composite
3.8

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, Jun 28, 8:32 PM EDT, 1 hour 14 minutes before
MIZALL-290200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
830 PM EDT TUE JUN 28 1994

...A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF EAST CENTRAL AND
SOUTHEAST LOWER MICHIGAN UNTIL 1000 PM EDT...

THE TORNADO WATCH IS NO LONGER IN EFFECT FOR THE NORTHEAST LOWER MICHIGAN
COUNTIES OF OGEMAW...IOSCO...AND ARENAC. THE TORNADO WATCH IS ALSO
CANCELLED FOR THE SOUTH CENTRAL LOWER MICHIGAN COUNTIES OF SHIAWASSEE...
INGHAM...JACKSON...AND BRANCH.

THE TORNADO WATCH IS STILL IN EFFECT FOR THE REMAINDER OF EAST CENTRAL
AND SOUTHEAST LOWER MICHIGAN UNTIL 1000 PM. SOME COMMUNITIES STILL IN
THE TORNADO WATCH AREA ARE BAY CITY...SAGINAW...FLINT...LAPEER...PORT
HURON...HILLSDALE...ADRIAN...ANN ARBOR...DETROIT...AND MONROE.

SEVERE THUNDERSTORMS...CAPABLE OF PRODUCING LARGE HAIL...DAMAGING WINDS
AND POSSIBLE TORNADOES WILL CONTINUE TO AFFECT EAST CENTRAL AND
STAY TUNED TO NATIONAL WEATHER SERVICE RADIO OR OTHER LOCAL RADIO
OR TELEVISION STATION FOR UPDATES ON THIS POTENTIALLY DANGEROUS
WEATHER SITUATION.

JWK
Special weather statement, Jun 28, 8:46 PM EDT, 1 hour before
MIZ063-068>070-075-076-082-083-290200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT MI
848 PM EDT TUE JUN 28 1994

...STRONG THUNDERSTORMS DEVELOPING IN OAKLAND COUNTY...
...A TORNADO WATCH IS IN EFFECT UNTIL 1000 PM EDT FOR ALL OF
SOUTHEAST LOWER MICHIGAN...

AT 843 PM...RADAR INDICATED STRONG THUNDERSTORMS DEVELOPING IN NORTHERN
OAKLAND COUNTY COUNTY JUST NORTH OF PONTIAC...26 MILES NORTH-NORTHWEST OF
DOWNTOWN DETROIT.  THESE STORMS OF CAPABLE OF PRODUCING LARGE HAIL...STRONG
WINDS AND DANGEROUS LIGHTNING.   THE STORMS ARE MOVING EAST AT 35 MILES AN
HOUR AND WILL BE NEAR ROCHESTER BY 945 PM.

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STAND NEAR WINDOWS. DO NOT USE TELEPHONES
OR ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED. MOTORISTS
SHOULD AVOID LOW WATER CROSSINGS...ESPECIALLY UNDERPASSES.
IF YOU ARE CAUGHT OUTSIDE...FIND SHELTER FROM THE WEATHER IN A
STRONG BUILDING. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM
HAS PASSED.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST UPDATE ON THESE
STORMS.

RUA
Special weather statement, Jun 28, 8:48 PM EDT, 58 minutes before
MIZ063-068>070-075-076-082-083-290200-

SPECIAL WEATHER STATEMENT...COR FOR WORDING
NATIONAL WEATHER SERVICE DETROIT MI
848 PM EDT TUE JUN 28 1994

...STRONG THUNDERSTORMS DEVELOPING IN OAKLAND COUNTY...
...A TORNADO WATCH IS IN EFFECT UNTIL 1000 PM EDT FOR ALL OF
SOUTHEAST LOWER MICHIGAN...

AT 843 PM...RADAR INDICATED STRONG THUNDERSTORMS DEVELOPING IN NORTHERN
OAKLAND COUNTY JUST NORTH OF PONTIAC...26 MILES NORTH-NORTHWEST OF DOWNTOWN
DETROIT.  THESE STORMS ARE CAPABLE OF PRODUCING LARGE HAIL...STRONG
WINDS AND DANGEROUS LIGHTNING.  THE STORMS ARE MOVING EAST AT 35 MILES AN
HOUR AND WILL BE NEAR ROCHESTER BY 945 PM.

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STAND NEAR WINDOWS. DO NOT USE TELEPHONES
OR ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED. MOTORISTS
SHOULD AVOID LOW WATER CROSSINGS...ESPECIALLY UNDERPASSES.
IF YOU ARE CAUGHT OUTSIDE...FIND SHELTER FROM THE WEATHER IN A
STRONG BUILDING. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM
HAS PASSED.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST UPDATE ON THESE
STORMS.

RUA
Special weather statement, Jun 28, 8:52 PM EDT, 54 minutes before
MIZ063-068>070-075-076-082-083-290200-

SPECIAL WEATHER STATEMENT...COR FOR WORDING
NATIONAL WEATHER SERVICE DETROIT MI
848 PM EDT TUE JUN 28 1994

...STRONG THUNDERSTORMS DEVELOPING IN OAKLAND COUNTY...
...A TORNADO WATCH IS IN EFFECT UNTIL 1000 PM EDT FOR ALL OF
SOUTHEAST LOWER MICHIGAN...

AT 843 PM...RADAR INDICATED STRONG THUNDERSTORMS DEVELOPING IN NORTHERN
OAKLAND COUNTY JUST NORTH OF PONTIAC...26 MILES NORTH-NORTHWEST OF DOWNTOWN
DETROIT.  THESE STORMS ARE CAPABLE OF PRODUCING LARGE HAIL...STRONG
WINDS AND DANGEROUS LIGHTNING.  THE STORMS ARE MOVING EAST AT 35 MILES AN
HOUR AND WILL BE NEAR ROCHESTER BY 945 PM.

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STAND NEAR WINDOWS. DO NOT USE TELEPHONES
OR ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED. MOTORISTS
SHOULD AVOID LOW WATER CROSSINGS...ESPECIALLY UNDERPASSES.
IF YOU ARE CAUGHT OUTSIDE...FIND SHELTER FROM THE WEATHER IN A
STRONG BUILDING. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM
HAS PASSED.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST UPDATE ON THESE
STORMS.

RUA
Special weather statement, Jun 28, 9:00 PM EDT, 46 minutes before
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Special weather statement, Jun 28, 9:02 PM EDT, 44 minutes before
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <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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      <p id="message2">
        Please try again in a few minutes.
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 8:11 PM EDTTornado WarningDTXLapeer34 min
Jun 28, 8:53 PM EDTTornado WarningDTXLapeer, Sanilac35 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1994Every 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.