Alert archive / Michigan / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 41, NWS Gaylord, MI

July 23, 1994Manistee County, Mason County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Jul 23, 1994, 9:28 PM EDT for Manistee County, Mason County, Michigan. It was in force for 62 min.

The area

The counties it named.

The facts

Issued
Jul 23, 1994, 9:28 PM EDT (01:28 UTC)
Expired
Jul 23, 1994, 10:30 PM EDT
In force
62 min
Issued by
NWS Gaylord, MI
Area
Whole counties

Counties Manistee County, MI, Mason County, MI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 1.5 hours before the alert went out and 145 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, Green Bay/Straub, WI at 00:00Z on 1994-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1155 joules per kilogram.LCLEL10008507005003002001001 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, Green Bay/Straub, WI at 00:00Z on 1994-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 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
1155 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1385 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.4
Supercell composite
6.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS1 KMKG 240128 RRA
SVRMKG
MIC101-105-240230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING 
NATIONAL WEATHER SERVICE MUSKEGON MI
928 PM EDT SAT JUL 23 1994

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 1030 PM EDT FOR 
PEOPLE IN THE FOLLOWING COUNTIES

   IN THE NORTHWEST PART OF LOWER MICHIGAN
      SOUTHERN MANISTEE...

   IN THE WEST CENTRAL PART OF LOWER MICHIGAN
      NORTHERN MASON...

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

AT 925 PM EDT A SEVERE THUNDERSTORM WAS INDICATED BY RADAR MOVING
ONSHORE OVER NORTHERN MASON AND SOUTHERN MANISTEE COUNTIES IN THE
VICINITY OF BAG SABLE POINT.  COMMUNITIES IN THE PATH OF THE
SEVERE THUNDERSTORM ARE DUBLIN AND IRONS.  WINDS GUSTS OF 60 MPH
AND LARGE HAIL WILL ACCOMPANY THIS STORM.

IF YOU ARE IN THE PATH OF THIS STORM...GO TO A BASEMENT SHELTER IF
AVAILABLE...OTHERWISE GO TO A CENTRAL INTERIOR ROOM ON THE LOWEST
FLOOR. ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

BOLEN

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, Jul 23, 7:39 PM EDT, 1 hour 49 minutes before
MIZ016>019-023-024-029-030-036-042-509-514-240130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALPENA MI
738 PM EDT SAT JUL 23 1994

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM FOR ALL
OF NORTHEAST AND EXTREME NORTHERN LOWER MICHIGAN...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM FOR ALL OF
NORTHEAST AND EXTREME NORTHERN LOWER MICHIGAN. THIS WATCH INCLUDES THE
COMMUNITIES OF CHARLEVOIX...PELLSTON...CHEBOYGAN...ROGERS CITY...ALPENA
...ATLANTA...ALCONA...MIO...TAWAS CITY...AND STANDISH.

AT 735 PM...A LINE OF SHOWERS...WITH EMBEDDED STRONG THUNDERSTORMS...
EXTENDED FROM ROGERS CITY TO NEAR HILLMAN. THIS LINE WAS MOVING TO THE
SOUTHEAST AT 30 MPH AND BY 800 PM WILL EXTEND FROM PRESQUE ISLE HARBOR
TO LEWISTON. BY 830 PM...THE LINE WILL EXTEND FROM ALPENA TO MIO.

INTENSE LIGHTNING...PEA SIZE HAIL...HEAVY RAIN...AND GUSTY WINDS WILL
ACCOMPANY THE PASSAGE OF THESE STORMS. REMEMBER...A SEVERE THUNPDERSTORM
WATCH INDICATES THAT ANY OF THE THUNDERSTORMS COULD PRODUCE WIND
GUSTS IN EXCESS OF 58 MPH...AND HAIL GREATER THAN 3/4 OF AN INCH.

NORCROSS
Special weather statement, Jul 23, 8:40 PM EDT, 48 minutes before
MIZ022-028-034-035-040-041-240200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUGHTON LAKE MI
840 PM EDT SAT JULY 23 1994

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT FOR
NORTH CENTRAL LOWER MICHIGAN...

A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL 1100 PM FOR ALL OF
NORTH CENTRAL LOWER MICHIGAN. THE WATCH AREA INCLUDE THE COUNTIES OF
CLARE...GLADWIN...ROSCOMMON...OGEMAW...CRAWFORD...AND OTSEGO. A FEW WELL
KNOWN COMMUNITIES IN THE WATCH AREA INCLUDE HARRISON...GLADWIN...
HOUGHTON LAKE...WEST BRANCH...GRAYLING...AND GAYLORD.

AT 835 PM EDT...NATIONAL WEATHER SERVICE RADAR OUT OF HOUGHTON LAKE
INDICATED AN AREA OF SHOWERS AND EMBEDDED THUNDERSTORMS EXTENDING
FROM NEAR MANISTEE NORTHEAST TOWARD THE ALPENA AREA. THE STRONGEST
THUNDERSTORMS...PRODUCING HEAVY RAINFALL AND FREQUENT CLOUD TO GROUND
LIGHTNING...WERE LOCATED ABOUT 5 MILES TO THE WEST OF OTSEGO LAKE IN
WESTERN OTSEGO COUNTY...JUST TO THE SOUTHEAST OF JOHANNESBURG IN EASTERN
OTSEGO COUNTY...AND 15 MILES TO WEST OF FREDERIC IN EASTERN KALKASKA
COUNTY. THESE THUNDERSTORMS WERE MOVING TO THE SOUTHEAST AT 25 MPH AND
WILL AFFECT THE COMMUNITIES OF FREDERIC IN NORTHERN CRAWFORD COUNTY AND
WATERS IN SOUTHERN OTSEGO COUNTY BY 850 PM.

IF YOU SEE A THUNDERSTORM APPROACHING YOUR AREA...GET INSIDE A STURDY
BUILDING IMMEDIATELY AND STAY AWAY FROM WINDOWS.

HURLEY
Special weather statement, Jul 23, 9:15 PM EDT, 13 minutes before
MIZ016>019-023-024-029-030-036-042-509-514-240300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALPENA MI
915 PM EDT SAT JUL 23 1994

...SEVERE THUNDERSTORM WATCH CANCELLED FOR EXTREME NORTHERN AND PARTS
OF NORTHEAST LOWER MICHIGAN...

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR CHARLEVOIX...EMMET...
CHEBOYGAN...PRESQUE ISLE...ALPENA AND MONTMORENCY COUNTIES. THE SEVERE
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 11 PM EDT FOR OSCODA...ALCONA
...IOSCO AND ARENAC COUNTIES...AND INCLUDED THE COMMUNITIES OF MIO...
GREENBUSH...NATIONAL CITY...AND STERLING.

AT 910 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A BROAD AREA OF SHOWERS
WITH A FEW THUNDERSTORM COVERING NORTHERN LOWER MICHIGAN FROM CHEBOYGAN
SOUTH TO WOLVERINE...THEN SOUTHEAST TO LEWISTON...CURRAN...HUBBARD LAKE
AND BLACK RIVER. THE AREA WAS MOVING TO THE EAST AT 20 MILES AN HOUR
...WHILE THE THUNDERSTORMS MOVED SOUTHEAST AT 25 MILES AN HOUR. A FEW
THUNDERSTORMS LOCATED BETWEEN ATLANTA...TO 20 MILES SOUTHWEST OF
LEWISTON WILL MOVE SOUTHEAST TO CURRAN...MIO AND LUZERNE BY 945 PM
AND WEAKEN. THE THUNDERSTORMS CAN BE EXPECTED TO PRODUCE BRIEF HEAVY
RAIN AND WIND GUSTS TO 30 MILES AN HOUR.

IF YOU ARE OUTDOOR WHEN THUNDERSTORMS APPROACH...MOVE INDOORS UNTIL
THE STORMS PASS.

WOOD
Special weather statement, Jul 23, 9:16 PM EDT, 12 minutes before
MIZ022-240215-

SPECIAL WEATHER STATEMENT...CORRECTED.
NATIONAL WEATHER SERVICE HOUGHTON LAKE MI
916 PM EDT SAT JULY 23 1994

...THE SEVERE THUNDERSTORM WATCH FOR OTSEGO COUNTY HAS BEEN CANCELLED...

THE SEVERE THUNDERSTORM WATCH ISSUED FOR OTSEGO COUNTY LATE THIS
AFTERNOON HAS BEEN TERMINATED. AT 915 PM EDT...NATIONAL WEATHER SERVICE
RADAR OUT OF HOUGHTON LAKE INDICATED THAT ALL THUNDERSTORM ACTIVITY HAD
MOVED SOUTH AND INTO KALKASKA...CRAWFORD...AND OSCODA COUNTIES. RAIN
SHOWRES WILL CONTINUE OVER THE AREA FOR THE NEXT FEW HOURS...HOWEVER...
THE THREAT OF SEVERE WEATHER HAS BEEN DIMINISHED CONSIDERABLY. THIS WILL
BE THE LAST STATEMENT FOR OTSEGO COUNTY REGARDING THIS LATEST SEVERE
WEATHERn WATCH.

HURLEY
Special weather statement, Jul 23, 9:16 PM EDT, 12 minutes before
MIZ022-240215-

SPECIAL WEATHER STATEMENT...CORRECTED.
NATIONAL WEATHER SERVICE HOUGHTON LAKE MI
916 PM EDT SAT JULY 23 1994

...THE SEVERE THUNDERSTORM WATCH FOR OTSEGO COUNTY HAS BEEN CANCELLED...

THE SEVERE THUNDERSTORM WATCH ISSUED FOR OTSEGO COUNTY LATE THIS
AFTERNOON HAS BEEN TERMINATED. AT 915 PM EDT...NATIONAL WEATHER SERVICE
RADAR OUT OF HOUGHTON LAKE INDICATED THAT ALL THUNDERSTORM ACTIVITY HAD
MOVED SOUTH AND INTO KALKASKA...CRAWFORD...AND OSCODA COUNTIES. RAIN
SHOWRES WILL CONTINUE OVER THE AREA FOR THE NEXT FEW HOURS...HOWEVER...
THE THREAT OF SEVERE WEATHER HAS BEEN DIMINISHED CONSIDERABLY. THIS WILL
BE THE LAST STATEMENT FOR OTSEGO COUNTY REGARDING THIS LATEST SEVERE
WEATHERn WATCH.

HURLEY
Special weather statement, Jul 23, 9:18 PM EDT, 10 minutes before
MIZ016>019-023-024-029-030-036-042-509-514-240300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALPENA MI
915 PM EDT SAT JUL 23 1994

...SEVERE THUNDERSTORM WATCH CANCELLED FOR EXTREME NORTHERN AND PARTS
OF NORTHEAST LOWER MICHIGAN...

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR CHARLEVOIX...EMMET...
CHEBOYGAN...PRESQUE ISLE...ALPENA AND MONTMORENCY COUNTIES. THE SEVERE
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 11 PM EDT FOR OSCODA...ALCONA
...IOSCO AND ARENAC COUNTIES...AND INCLUDED THE COMMUNITIES OF MIO...
GREENBUSH...NATIONAL CITY...AND STERLING.

AT 910 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A BROAD AREA OF SHOWERS
WITH A FEW THUNDERSTORM COVERING NORTHERN LOWER MICHIGAN FROM CHEBOYGAN
SOUTH TO WOLVERINE...THEN SOUTHEAST TO LEWISTON...CURRAN...HUBBARD LAKE
AND BLACK RIVER. THE AREA WAS MOVING TO THE EAST AT 20 MILES AN HOUR
...WHILE THE THUNDERSTORMS MOVED SOUTHEAST AT 25 MILES AN HOUR. A FEW
THUNDERSTORMS LOCATED BETWEEN ATLANTA...TO 20 MILES SOUTHWEST OF
LEWISTON WILL MOVE SOUTHEAST TO CURRAN...MIO AND LUZERNE BY 945 PM
AND WEAKEN. THE THUNDERSTORMS CAN BE EXPECTED TO PRODUCE BRIEF HEAVY
RAIN AND WIND GUSTS TO 30 MILES AN HOUR.

IF YOU ARE OUTDOOR WHEN THUNDERSTORMS APPROACH...MOVE INDOORS UNTIL
THE STORMS PASS.

WOOD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 24, 2:05 PM EDTSevere Thunderstorm WarningAPXChippewa, Mackinac40 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.