Alert archive / Michigan / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 7, NWS Gaylord, MI

May 11, 1994Alcona County, Iosco County, Oscoda County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at May 11, 1994, 5:25 PM EDT for Alcona County, Iosco County, Oscoda County, Michigan. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
May 11, 1994, 5:25 PM EDT (21:25 UTC)
Expired
May 11, 1994, 6:30 PM EDT
In force
65 min
Issued by
NWS Gaylord, MI
Area
Whole counties

Counties Alcona County, MI, Iosco County, MI, Oscoda County, MI

The nearest sounding before it

Sault Ste Marie, MI (KY62), launched 12:00Z, 9.4 hours before the alert went out and 218 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, Sault Ste Marie, MI at 12:00Z on 1994-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Sault Ste Marie, MI at 12:00Z on 1994-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 324 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
558 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
324 m²/s²
0-3 km storm-relative helicity
460 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, May 11, 4:05 PM EDT, 1 hour 20 minutes before
MIZ016>019-023-024-029-030-036-042-509-514-112100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALPENA MI
405 PM EDT WED MAY 11 1994

...STRONG THUNDERSTORMS WERE MOVING ACROSS NORTHERN LOWER MICHIGAN
THIS AFTERNOON...

AT 400 PM RADAR INDICATED STRONG THUNDERSTORMS 5 MILES SOUTHWEST OF
ROGERS CITY... OR 25 MILES NORTHWEST OF ALPENA... AND JUST NORTH OF
JOHANNESBURG... OR 45 MILES WEST OF ALPENA. THE STORM NEAR JOHANNESBURG
HAS PRODUCED SMALL HAIL AND HEAVY RAIN.

THE SCATTERED THUNDERSTORMS WERE MOVING EAST SOUTHEAST AT 35 MPH AND
WILL EXTEND FROM PRESQUE ISLE TO HILLMAN... ATLANTA... AND LEWISTON BY
420 PM... AND WILL EXTEND FROM ALPENA TO FLETCHER POND BY 450 PM.

PERSONS IN NORTHEAST LOWER MICHIGAN SHOULD TAKE COVER IF THREATENING
WEATHER APPROACHES.
HOLLINGSWORTH
Special weather statement, May 11, 4:09 PM EDT, 1 hour 16 minutes before
MIZ016>019-023-024-029-030-036-042-509-514-112100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALPENA MI
405 PM EDT WED MAY 11 1994

...STRONG THUNDERSTORMS WERE MOVING ACROSS NORTHERN LOWER MICHIGAN
THIS AFTERNOON...

AT 400 PM RADAR INDICATED STRONG THUNDERSTORMS 5 MILES SOUTHWEST OF
ROGERS CITY... OR 25 MILES NORTHWEST OF ALPENA... AND JUST NORTH OF
JOHANNESBURG... OR 45 MILES WEST OF ALPENA. THE STORM NEAR JOHANNESBURG
HAS PRODUCED SMALL HAIL AND HEAVY RAIN.

THE SCATTERED THUNDERSTORMS WERE MOVING EAST SOUTHEAST AT 35 MPH AND
WILL EXTEND FROM PRESQUE ISLE TO HILLMAN... ATLANTA... AND LEWISTON BY
420 PM... AND WILL EXTEND FROM ALPENA TO FLETCHER POND BY 450 PM.

PERSONS IN NORTHEAST LOWER MICHIGAN SHOULD TAKE COVER IF THREATENING
WEATHER APPROACHES.
HOLLINGSWORTH
Special weather statement, May 11, 4:46 PM EDT, 39 minutes before
MIZ022-028-034-035-112200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUGHTON LAKE MI
446 PM EDT WED MAY 11 1994

...STRONG THUNDERSTORMS NEAR GRAYLING...

AT 442 PM EDT WEATHER RADAR SHOWED STRONG THUNDERSTORMS OVER CRAWFORD
COUNTY... ABOUT 5 TO 10 MILES NORTH OF THE COMMUNITY OF GRAYLING.
GRAYLING IS 20 MILES NORTH OF HOUGHTON LAKE.

PEA SIZED HAIL WAS REPORTED WITH THE STORM JUST NORTH OF GRAYLING AT
443 PM.  THESE STORMS WERE MOVING EAST AT 35 MPH AND WILL REACH THE
EAST CRAWFORD COUNTY BORDER... 15 MILES EAST OF GRAYLING... BY 515
PM.

THES STORMS CAN BE EXPECTED TO PRODUCE DEADLY CLOUD TO GROUND
LIGHTNING...SMALL HAIL... STRONG GUSTY WINDS... AND HEAVY DOWNPOURS
AS THEY PASS.  PERSONS IN THE PATH OF THESE STORMS SHOULD SEEK
SHELTER IN A STURDY BUILDING UNTIL THEY HAVE PASSED.

FRUEHAUF
Special weather statement, May 11, 4:49 PM EDT, 36 minutes before
MIZ022-028-034-035-112200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUGHTON LAKE MI
446 PM EDT WED MAY 11 1994

...STRONG THUNDERSTORMS NEAR GRAYLING...

AT 442 PM EDT WEATHER RADAR SHOWED STRONG THUNDERSTORMS OVER CRAWFORD
COUNTY... ABOUT 5 TO 10 MILES NORTH OF THE COMMUNITY OF GRAYLING.
GRAYLING IS 20 MILES NORTH OF HOUGHTON LAKE.

PEA SIZED HAIL WAS REPORTED WITH THE STORM JUST NORTH OF GRAYLING AT
443 PM.  THESE STORMS WERE MOVING EAST AT 35 MPH AND WILL REACH THE
EAST CRAWFORD COUNTY BORDER... 15 MILES EAST OF GRAYLING... BY 515
PM.

THES STORMS CAN BE EXPECTED TO PRODUCE DEADLY CLOUD TO GROUND
LIGHTNING...SMALL HAIL... STRONG GUSTY WINDS... AND HEAVY DOWNPOURS
AS THEY rPASS.  PERSONS IN THE PATH OF THESE STORMS SHOULD SEEK
SHELTER IN A STURDY BUILDING UNTIL THEY HAVE PASSED.

FRUEHAUF
Special weather statement, May 11, 5:09 PM EDT, 16 minutes before
MIZ022-028-034-035-112200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUGHTON LAKE MI
510 PM EDT WED MAY 11 1994

...STRONG THUNDERSTORMS NEAR GRAYLING AND WEST BRANCH...

AT 506 PM EDT WEATHER RADAR SHOWED A LINE OF THUNDERSTORMS EXTENDING
FROM GRAYLING... 20 MILES NORTH OF HOUGHTON LAKE... TO LUZERNE... 25
MILES NORTHEAST OF HOUGHTON LAKE.  ADDITIONALLY... A STRONG
THUNDERSTORM HAD DEVELOPED 5 MILES NORTH OF WEST BRANCH.  WEST
BRANCH IS 20 MILES SOUTHEAST OF HOUGHTON LAKE.

THESE STORMS WERE MOVING EAST AT 30 MPH AND WILL REACH THE
SOUTHEAST CRAWFORD COUNTY LINE BY 535 PM.  THE STORM NEAR
WEST BRANCH WILL REACH SELKIRK... 10 MILES EAST OF WEST
BRANCH... BY 525 PM.

THES STORMS CAN BE EXPECTED TO PRODUCE DEADLY CLOUD TO GROUND
LIGHTNING...SMALL HAIL... STRONG GUSTY WINDS... AND HEAVY DOWNPOURS
AS THEY PASS.  PERSONS IN THE PATH OF THESE STORMS SHOULD SEEK
SHELTER IN A CAR WITH A METAL ROOF OR STURDY BUILDING UNTIL THEY HAVE
PASSED.

FRUEHAUF
Special weather statement, May 11, 5:10 PM EDT, 15 minutes before
MIZ022-028-034-035-112200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUGHTON LAKE MI
510 PM EDT WED MAY 11 1994

...STRONG THUNDERSTORMS NEAR GRAYLING AND WEST BRANCH...

AT 506 PM EDT WEATHER RADAR SHOWED A LINE OF THUNDERSTORMS EXTENDING
FROM GRAYLING... 20 MILES NORTH OF HOUGHTON LAKE... TO LUZERNE... 25
MILES NORTHEAST OF HOUGHTON LAKE.  ADDITIONALLY... A STRONG
THUNDERSTORM HAD DEVELOPED 5 MILES NORTH OF WEST BRANCH.  WEST
BRANCH IS 20 MILES SOUTHEAST OF HOUGHTON LAKE.

THESE STORMS WERE MOVING EAST AT 30 MPH AND WILL REACH THE
SOUTHEAST CRAWFORD COUNTY LINE BY 535 PM.  THE STORM NEAR
WEST BRANCH WILL REACH SELKIRK... 10 MILES EAST OF WEST
BRANCH... BY 525 PM.

THES STORMS CAN BE EXPECTED TO PRODUCE DEADLY CLOUD TO GROUND
LIGHTNING...SMALL HAIL... STRONG GUSTY WINDS... AND HEAVY DOWNPOURS
AS THEY PASS.  PERSONS IN THE PATH OF THESE STORMS SHOULD SEEK
SHELTER IN A CAR WITH A METAL ROOF OR STURDY BUILDING UNTIL THEY HAVE
PASSED.

FRUEHAUF

The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 4:21 PM EDTSevere Thunderstorm WarningAPXAlpena, Montmorency34 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.