Alert archive / Michigan / Tornado Warnings in 1991
Tornado Warning 6, NWS Gaylord, MI
NWS Gaylord, MI issued this tornado warning at Sep 9, 1991, 8:43 PM EDT for Oceana County, Michigan. It was in force for 22 min.
The area
The counties it named.
The facts
- Issued
- Sep 9, 1991, 8:43 PM EDT (00:43 UTC)
- Expired
- Sep 9, 1991, 9:05 PM EDT
- In force
- 22 min
- Issued by
- NWS Gaylord, MI
- Area
- Whole counties
County Oceana County, MI
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.7 hours before the alert went out and 168 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.
- Mixed-layer CAPE
- 2788 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1100 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMKG 100043
TORMKG
MIC127-100145-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MUSKEGON MI
843 PM EDT MON SEP 9 1991
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 945 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY
IN THE WEST CENTRAL PART OF LOWER MICHIGAN
OCEANA
AT 845 PM THE OCEANA COUNTY SHERIFF REPORTED A TORNADO ON THE
GROUND AT SILVER LAKE MOVING TOWARD THE CITY OF HART.
IF YOU ARE IN THE PATH OF THIS TORNADO...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.
PERSONS IN THE CITY OF HART SRHOULD TAKE COVER IMMEDIATLY.
BROWN..What forecasters said that day
The local office's own words before this tornado 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, Sep 9, 8:19 PM EDT, 24 minutes before
MIZ043-044-045-046-047-063-100115- SPECIAL WEATHER STATEMENT AND SHORT RANGE WEATHER FORECAST NATIONAL WEATHER SERVICE HOUGHTON LAKE MI 819 PM EDT MON SEP 9 1991 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 100 AM EDT TUESDAY MORNING... A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 100 AM FOR THE FOLLOWING NORTH CENTRAL LOWER MICHIGAN COUNTIES...CLARE...GLADWIN...OGEMAW... ROSCOMMON...CRAWFORD AND OTSEGO AS WELL AS MOST OF THE REST OF NORTHERN LOWER MICHIGAN. AT 810 PM EDT SKIES WERE PARTLY CLOUDY ACROSS NORTH CENTRAL LOWER MICHIGAN. TEMPERATURES WERE IN THE UPPER 70S AND LOW 80S WITH SOUTHWEST WINDS OF 10 TO 15 MPH. RADAR INDICATED SOME DEVELOPING THUNDERSTORMS OUT OVER LAKE MICHIGAN WHICH WERE MOVING TO THE EAST AT AROUND 30 MPH. ANOTHER LINE OF THUNDERSTORMS STRETCHED ACROSS THE STRAITS AREA AND WAS MOVING TO THE NORTHEAST AT 30 MPH. SHOWERS AND THUNDERSTORMS ARE LIKELY TONIGHT WITH SOME BECOMING SEVERE. SEVERE THUNDERSTORMS PRODUCE STRONG DAMAGING WINDS OVER 60 MPH...TORRENTIAL RAINFALLS...FREQUENT DEADLY LIGHTNING AND CAN SOMETIMES PRODUCE TORNADOS. IF YOU ARE IN THE WATCH AREA PLEASE STAY TUNED TO LOCAL TELEVISION AND RADIO STATIONS FOR THE LATEST UPDATESh FROM THE NATIONAL WEATHER SERVICE. KEITH NNNN
Special weather statement, Sep 9, 8:41 PM EDT, 2 minutes before
MIZ039-048-060>062-064>068-100130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ALPENA MI 835 PM EDT MON SEP 9 1991 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 100 AM EDT... ...SHOWERS AND THUNDERSTORMS MOVING INTO NORTHEAST LOWER MICHIGAN... AT 835 PM...A LINE OF NEWLY DEVELOPED SHOWERS AND THUNDERSTORMS WAS MOVING ACROSS EXTREME NORTHERN AND NORTHEAST LOWER MICHIGAN. THE LEADING EDGE OF THE LINE EXTENDED FROM 45 MILES NORTHWEST OF ALPENA NEAR HAMMOND BAY ON THE LAKE HURON SHORELINE TO THE MOUTH OF GRAND TRAVERSE BAY...WHICH IS 25 MILES NORTH OF TRAVERSE CITY IN NORTHWEST LOWER MICHIGAN. THE LINE WAS MOVING TO THE NORTHEAST AT 20 TO 25 MILES AN HOUR AND RAIN WILL BEGIN IN ROGERS CITY AND ONAWAY BETWEEN 900 AND 930 PM. EVERYONE IN THE VICINITY OF THESE THUNDERSTORMS SHOULD BE ALERT FOR FREQUENT LIGHTNING...HEAVY RAIN...AND GUSTY WINDS AS THESE STORMS STORMS PASS OVERHEAD. IF INDOORS...STAY INDOORS AND DO NOT STAND NEAR ANY WINDOWS WHEN LIGHTNING IS PRESENT. DS
The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 9, 8:29 PM EDT | Severe Thunderstorm Warning | APX | Oceana | 61 min |
| Sep 9, 10:05 PM EDT | Severe Thunderstorm Warning | APX | Cheboygan, Presque Isle | 40 min |
| Sep 9, 11:09 PM EDT | Severe Thunderstorm Warning | APX | Alpena, Montmorency | 66 min |
Nearby
Tornado Warnings in Michigan, 1991Every tornado warning in 1991Tornadoes in 1991
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.