Alert archive / Michigan / Tornado Warnings in 1991
Tornado Warning 5, NWS Gaylord, MI
NWS Gaylord, MI issued this tornado warning at Jul 6, 1991, 5:51 PM EDT for Alpena County, Michigan. It was in force for 54 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 6, 1991, 5:51 PM EDT (21:51 UTC)
- Expired
- Jul 6, 1991, 6:45 PM EDT
- In force
- 54 min
- Issued by
- NWS Gaylord, MI
- Area
- Whole counties
County Alpena County, MI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 6, 6:45 PM EDT | Hail 1.75 | Alpena, MI |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Sault Ste Marie, MI (KY62), launched 12:00Z, 9.9 hours before the alert went out and 169 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1226 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 198 m²/s²
- 0-3 km storm-relative helicity
- 193 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KAPN 062154 TORAPN MIC007-062245- BULLETIN - EBS ACTIVATION REQUESTED TORNADO AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE ALPENA MI 551 PM EDT SAT JUL 6 1991 THE NATIONAL WEATHER SERVICE IN ALPENA HAS ISSUED A TORNADO AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 645 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHEAST LOWER MICHIGAN ...EASTERN ALPENA COUNTY AND FOR MARINE INTERESTS ON COASTAL WATERS FROM... ...ROCKPORT TO SOUTH POINT AT 550 PM...A FUNNEL CLOUD WAS LOCATED ONE MILE SOUTH OF THE ALPENA COUNTY REGIONAL AIRPORT. THE STORM WAS MOVING EAST AT 25 MILES AN HOUR. IF YOU ARE IN THE CITY OF ALPENA...TAKE COVER IMMEDIATELY. IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS... OR CUSHIONS TO COVER YOUR BODY. AVOID WINDOWS. RS
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, Jul 6, 12:47 PM EDT, 5 hours 4 minutes before
MIZ039-048-060>062-064>068-061800- SPECIAL WEATHER STATEMENT AND SHORT RANGE FORECAST NATIONAL WEATHER SERVICE ALPENA MI 1245 PM EDT SAT JUL 6 1991 ...THUNDERSTORMS WILL REDEVELOP THIS AFTERNOON AND MAY BECOME SEVERE... AT 1230 PM...MOST OF THE SHOWER AND THUNDERSTORM ACTIVITY FROM THIS MORNING HAD COME TO AN END AND SKIES WERE BECOMING PARTLY TO MOSTLY SUNNY. TEMPERATURES WERE RISING THROUGH THE 70S AND WINDS WERE BEGINNING TO INCREASE OUT OF THE SOUTH. SKIES WILL REMAIN PARTLY TO MOSTLY SUNNY THROUGHOUT THE EARLY AFTERNOON WITH JUST A FEW SHOWERS AND THUNDERSTORMS. HOWEVER...BY MID TO LATE AFTERNOON THUNDERSTORMS WILL BECOME MORE NUMEROUS AND SOME COULD BECOME SEVERE...PRODUCING STRONG GUSTY WINDS...LARGE HAIL...AND HEAVY RAINFALL. TEMPERATURES WILL BE RISING TO THE MID 80S THIS AFTERNOON AND WINDS WILL CONTINUE TO INCREASE OUT OF THE SOUTH AND SOUTHWEST. PEOPLE IN NORTHEAST AND EXTREME NORTHERN MICHIGAN AND BOATERS ON THE LAKES SHOULD BE ON THE LOOK OUT FOR THREATENING WEATHER LATER THIS AFTERNOON. YOU MAY NEED TO SEEK SHELTER AS SOME OF THE STORMS COULD BE QUITE DANGEROUS. BDM
The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 4:53 PM EDT | Severe Thunderstorm Warning | APX | Alpena, Presque Isle | 52 min |
| Jul 6, 5:55 PM EDT | Severe Thunderstorm Warning | APX | Presque Isle | 50 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.