Alert archive / Michigan / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 46, NWS Gaylord, MI

August 13, 1994Muskegon County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Aug 13, 1994, 9:26 PM EDT for Muskegon County, Michigan. It was in force for 44 min.

The area

The counties it named.

The facts

Issued
Aug 13, 1994, 9:26 PM EDT (01:26 UTC)
Expired
Aug 13, 1994, 10:10 PM EDT
In force
44 min
Issued by
NWS Gaylord, MI
Area
Whole counties

County Muskegon County, MI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 1.4 hours before the alert went out and 206 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 1994-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 486 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, Green Bay/Straub, WI at 00:00Z on 1994-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -27 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
486 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
1186 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
-27 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMKG 140126 RRA
SVRMKG
MIC121-140230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING 
NATIONAL WEATHER SERVICE MUSKEGON MI
926 PM EDT SAT AUG 13 1994

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

   IN THE WEST CENTRAL PART OF LOWER MICHIGAN
      MUSKEGON

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

AT  920 PM EDT A SEVERE THUNDERSTORM WAS MOVING ONSHORE OVER NORT
HERN MUSKEGON COUNTY FROM WHITEHALL SOUTH TO NORTH MUSKEGON.
DAMAGING WINDS IN EXCESS OF 55 MPH WILL ACOMPANY 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.

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, Aug 13, 6:45 PM EDT, 2 hours 41 minutes before
MIZ022-028-132345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUGHTON LAKE MI
645 PM EDT SAT AUG 13 1994

...THUNDERSTORMS MOVING INTO PARTS OF NORTH CENTRAL LOWER MICHIGAN...

AT 635 PM EDT SCATTERED THUNDERSTORMS WERE MOVING INTO OTSEGO AND
CRAWFORD COUNTIES IN NORTH CENTRAL LOWER MICHIGAN. THE LEADING EDGE
OF THE THUNDERSTORMS EXTENDED FROM VANDERBILT IN OTSEGO COUNTY TO
15 MILES WEST OF FREDERIC IN NORTHWEST CRAWFORD COUNTY.

THE THUNDERSTORMS WERE MOVING EAST AT 30 MPH AND WILL MOVE INTO
GAYLORD BY 700 PM AND INTO FREDERIC BY 710 PM.

THE THUNDERSTORMS WILL PRODUCE HEAVY RAIN...GUSTY WINDS AND DANGEROUS
LIGHTNING AS THEY PASS THROUGH OTSEGO AND CRAWFORD COUNTIES.

IF THUNDERSTORMS APPROACH MOVE INDOORS...STAY AWAY FROM ELECTRICAL
APPLIANCES AND USE THE PHONE ONLY IN AN EMERGENCY.

NNNN
Special weather statement, Aug 13, 8:05 PM EDT, 1 hour 21 minutes before
MIZ022-028-034-140215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUGHTON LAKE MI
805 PM EDT SAT AUG 13 1994

...THUNDERSTORMS CONTINUE ACROSS PARTS OF NORTH CENTRAL LOWER
MICHIGAN...

AT 800 PM EDT SCATTERED THUNDERSTORMS CONTINUED ACROSS PARTS OF NORTH
CENTRAL LOWER MICHIGAN. THE LEADING EDGE OF THE AREA OF THUNDERSTORMS
EXTENDED FROM FAIRVIEW TO 5 MILES NORTH OF MANTON.

THE AREA OF THUNDERSTORMS WAS MOVING SOUTHEAST AROUND 10 MPH AND BY
830 PM WILL EXTEND FROM NEAR CURRAN SOUTHWEST THROUGH THE HIGGINS LAKE
AREA TO NEAR LAKE CITY.

THE THUNDERSTORMS IN THIS AREA WILL PRODUCE HEAVY RAIN...GUSTY WINDS
AND DANGEROUS LIGHTNING AS THEY PASS THROUGH THE AREA. IF THUNDERSTORMS
APPROACH MOVE INDOORS AND STAY AWAY FROM WINDOWS...

NNNN
Special weather statement, Aug 13, 8:08 PM EDT, 1 hour 18 minutes before
MIZ022-028-034-140215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUGHTON LAKE MI
805 PM EDT SAT AUG 13 1994

...THUNDERSTORMS CONTINUE ACROSS PARTS OF NORTH CENTRAL LOWER
MICHIGAN...

AT 800 PM EDT SCATTERED THUNDERSTORMS CONTINUED ACROSS PARTS OF NORTH
CENTRAL LOWER MICHIGAN. THE LEADING EDGE OF THE AREA OF THUNDERSTORMS
EXTENDED FROM FAIRVIEW TO 5 MILES NORTH OF MANTON.

THE AREA OF THUNDERSTORMS WAS MOVING SOUTHEAST AROUND 10 MPH AND BY
830 PM WILL EXTEND FROM NEAR CURRAN SOUTHWEST THROUGH THE HIGGINS LAKE
AREA TO NEAR LAKE CITY.

THE THUNDERSTORMS IN THIS AREA WILL PRODUCE HEAVY RAIN...GUSTY WINDS
AND DANGEROUS LIGHTNING AS THEY PASS THROUGH THE AREA. IF THUNDERSTORMS
APPROACH MOVE INDOORS AND STAY AWAY FROM WINDOWS...

NNNN
Special weather statement, Aug 13, 9:04 PM EDT, 22 minutes before
MIZ034-035-140200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUGHTON LAKE MI
904 PM EDT SAT AUG 13 1994

...STRONG THUNDERSTORMS MOVING THROUGH ROSCOMMON AND OGEMAW COUNTIES...

AT 900 PM EDT WEATHER RADAR AND SPOTTER REPORTS INDICATED A LINE
OF STRONG THUNDERSTORMS OVER PORTIONS OF ROSCOMMON AND OGEMAW
COUNTIES. THE STRONGEST STORMS WERE LOCATED OVER THE VILLAGE OF ST.
HELEN IN EASTERN ROSCOMMON COUNTY WHILE OTHER STRONG THUNDERSTORMS
WERE MOVING TOWARDS THE ROSE CITY AREA. THESE THUNDERSTORMS WERE
MOVING SOUTHEAST AT 30 MPH AND WILL HIT THE ROSE CITY AREA BY 915 PM
AND THE WEST BRANCH AREA BY 930 PM.

THE THUNDERSTORMS MOVING THROUGH ROSCOMMON AND OGEMAW COUNTIES
WERE PRODUCING STRONG GUSTY WINDS OVER 30 MPH...SMALL HAIL...
TORRENTIAL RAINS AND FREQUENT DEADLY LIGHTNING.PERSONS IN ST.
HELEN IN ROSCOMMON COUNTY AND ROSE CITY...LUPTON AND WEST BRANCH
SHOULD MOVE INDOORS AWAY FROM WINDOWS AND DOORS WHILE THESE
THUNDERSTORMS MOVE THROUGH THE AREA UNTIL 1000 PM.

KEITH

NNNN
Special weather statement, Aug 13, 9:26 PM EDT, 0 minutes before
MIZ018-023-024-029-030-038-042-509-140330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALPENA MI
926 PM EDT SAT AUG 13 1994

...STRONG THUNDERSTORMS HAD DEVELOPED...

AT 923 PM EDT...RADAR SHOWED A LINE OF STRONG THUNDERSTORMS FROM JUST
NORTH OF OSCODA SOUTHWEST INTO WEST BRANCH MOVING SOUTHEAST AROUND 25
MILES AN HOUR. AT 910 PM...A SPOTTER REPORTED WINDS NEAR 30 MPH AS THEY
PASSED OVER M65 NEAR THE AU SABLE RIVER.

BY 1015 PM...THE LINE OF STRONG THUNDERSTORMS WILL BE FROM TAWAS CITY
TO TWINING. THESE STORMS WILL PRODUCE WINDS GUSTS NEAR 30 MPH...VERY
HEAVY RAIN...AND DEADLY LIGHTNING AS THEY PASS YOUR LOCATION.

REMEMBER TO SLOW DOWN IF DRIVING IN HEAVY RAIN AND GET IN FROM THE
OUTSIDE IF YOU SEE LIGHTNING.

HELGESON

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.