Alert archive / Michigan / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 1, NWS Gaylord, MI

May 2, 1992Iosco County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at May 2, 1992, 8:51 AM EDT for Iosco County, Michigan. It was in force for 54 min.

The area

The counties it named.

The facts

Issued
May 2, 1992, 8:51 AM EDT (12:51 UTC)
Expired
May 2, 1992, 9:45 AM EDT
In force
54 min
Issued by
NWS Gaylord, MI
Area
Whole counties

County Iosco County, MI

The nearest sounding before it

Detroit, MI (KFNT), launched 12:00Z, 0.9 hours before the alert went out and 176 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 12:00Z on 1992-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 292 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 12:00Z on 1992-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 129 square meters per square second.19395878Sfc1 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
292 J/kg
Mixed-layer CIN
-355 J/kg
Mixed-layer LCL
1219 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
129 m²/s²
0-3 km storm-relative helicity
190 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.

000 
TTAA00 KAPN 021251
SVRAPN
MIC069-021345-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING 
NATIONAL WEATHER SERVICE ALPENA MI
851 AM EDT SAT MAY 2 1992

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 945 AM EDT FOR 
PEOPLE IN THE FOLLOWING COUNTY

   IN THE NORTHEAST PART OF LOWER MICHIGAN
      IOSCO

...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE
COUNTY JUST MENTIONED

AT 845 AM...A SEVERE THUNDERSTORM WAS OVER NORTHERN OGEMAW COUNTY
NEAR ROSE CITY...55 MILES SOUTHWEST OF ALPENA OR 30 MILE EAST OF
HOUGHTON LAKE.

THE STORM WAS MOVING EAST AT 50 MILES AN HOUR AND WILL MOVE THROUGH
HALE BY 9AM...AND NEAR TAWAS CITY BY 920 AM.

IF YOU ARE IN AN AREA THREATENED BY THE STORM..GO TO A REINFORCED
SHELTER AND PREPARE FOR DAMAGING WIND...LARGE HAIL...VERY HEAVY
RAIN AND LIGHTNING.

INTENSE LIGHTNING IS REPORTED WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM HIGH OBJECTS...SUCH AS TREES. MOVE INDOORS IF POSSIBLE.
WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING
TELEPHONES AND ELECTRICAL EQUIPMENT.

MEADE

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, May 2, 7:20 AM EDT, 1 hour 31 minutes before
MIZ039-048-060>062-064>068-021400-

SPECIAL WEATHER STATEMENT AND SHORT-RANGE WEATHER FORECAST
NATIONAL WEATHER SERVICE ALPENA MI
720 AM EDT SAT MAY 2 1992

...SHOWERS AND THUNDERSTORMS WILL MOVE RAPIDLY ACROSS EXTREME NORTHERN
AND NORTHEAST LOWER MICHIGAN THIS MORNING...

AT 720 AM...THE LEADING EDGE OF A LINE OF SHOWERS AND THUNDERSTORMS
EXTENDED FROM CHEBOYGAN...20 MILES SOUTHEAST OF THE MACKINAC BRIDGE...
SOUTHWEST TO THE TRAVERSE CITY AREA...50 MILES NORTHWEST OF HOUGHTON
LAKE. A STRONG THUNDERSTORM PRODUCING HEAVY DOWNPOURS AND DANGEROUS
LIGHTNING WAS LOCATED JUST SOUTH OF TRAVERSE CITY AT 720 AM.

THIS LINE OF SHOWERS AND THUNDERSTORMS WAS MOVING RAPIDLY EAST AT
AROUND 50 MILES AN HOUR. SHOWERS AND THUNDERSTORMS WILL MOVE INTO
ONAWAY AND GAYLORD BY 730 AM...INTO ROGERS CITY...ATLANTA AND HOUGHTON
LAKE BY 745 AM...AND NEAR GRAND LAKE...LACHINE AND MIO AROUND 8 AM.

HEAVY RAIN AND DANGEROUS LIGHTNING ARE POSSIBLE WITHIN THIS LINzE OF
THUNDERSTORMS. BE PREPARED FOR RAPIDLY CHANGING WEATHER CONDITIONS
ACROSS THE REGION THIS MORNING. BE PREPARED TO SEEK SHELTER IF
THREATENING WEATHER APPROACHES.

MEADE

Nearby

Severe Thunderstorm Warnings in Michigan, 1992Every severe thunderstorm warning in 1992

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.