Alert archive / Michigan / Tornado Warnings in 1991
Tornado Warning 4, NWS Gaylord, MI
NWS Gaylord, MI issued this tornado warning at May 29, 1991, 9:07 AM EDT for Iosco County, Michigan. It was in force for 23 min.
The area
The counties it named.
The facts
- Issued
- May 29, 1991, 9:07 AM EDT (13:07 UTC)
- Expired
- May 29, 1991, 9:30 AM EDT
- In force
- 23 min
- Issued by
- NWS Gaylord, MI
- Area
- Whole counties
County Iosco County, MI
The nearest sounding before it
Detroit, MI (KFNT), launched 12:00Z, 1.1 hours before the alert went out and 176 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
- NaN m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 31 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 KAPN 291307
TORAPN
MIC069-291330-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
TORNADO AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE ALPENA MI
907 AM EDT WED MAY 29 1991
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO AND SPECIAL
MARINE WARNING EFFECTIVE UNTIL 930 AM EDT FOR PEOPLE IN THE
FOLLOWING COUNTY
IN THE NORTHEAST PART OF LOWER MICHIGAN
EASTERN IOSCO
...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE
COUNTY JUST MENTIONED
AT 902 AM A TORNADO WAS SIGHTED BY WURTSMITH AIR FORCE BASE
PERSONNEL ABOUT 5 MILES NORTH OF THE AIRPORT. IT WAS MOVING EAST
AROUND 45 MPH.
IF YOU ARE IN THE PATH OF THIS TORNADO...GO TO A BASEMENT SHELTER
IF AVAILABLE...OTHERWISE TO A CENTRAL INTERIOR ROOM ON THE LOWEST
FLOOR. ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING.
IF YOU ARE IN AN AREA THREATENED BY THE STORM..GO TO A REINFORCED
SHELTER AND PREPARE FOR DAMAGING WIND...LARGE HAIL...VER7Y HEAVY
RAIN AND LIGHTNING.
THIS IS A DANGEROUS STORM. TAKE COVER IMMEDIATELY.
ONCE THE THREAT OF SEVERE WEATHER HAS PASSED...REPORT ANY INJURIES OR
DAMAGE TO YOUR NEAREST EMERGENCY SERVICES OR LAW ENFORCEMENT AGENCY.
RCWhat 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, May 29, 7:35 AM EDT, 1 hour 32 minutes before
MIZ043-044-045-046-047-063-291300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUGHTON LAKE MI 730 AM EDT WED MAY 29 1991 ...BLUSTERY THUNDERSTORMS MOVE THROUGH NORTH CENTRAL MICHIGAN... AT 730 AM EDT...A LINE OF THUNDERSTORMS...SOME WITH VERY HEAVY RAINS...POSSIBLY SMALL HAIL...AND GUSTY WINDS TO 45 MPH...EXTENDED FROM GAYLORD SOUTH TO LAKE CITY IN MISSAUKEE COUNTY ABOUT 25 MILES WEST OF HOUGHTON LAKE. THIS LINE OF THUNDERSTORMS WERE MOVING EAST AT ABOUT 30 TO 35 MPH. ANYONE IN OTSEGO...CRAWFORD...AND ROSCOMMON COUNTIES SHOULD BE ALERT TO THESE STORMS BETWEEN 730 AM AND 830 AM. LH
Special weather statement, May 29, 8:02 AM EDT, 1 hour 5 minutes before
MIZ043-044-045-046-047-063-291300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUGHTON LAKE MI 800 AM EDT WED MAY 29 1991 ...BLUSTERY THUNDERSTORMS MOVE THROUGH NORTH CENTRAL MICHIGAN... AT 800 AM EDT...A LINE OF THUNDERSTORMS...SOME WITH VERY HEAVY RAINS...POSSIBLY SMALL HAIL...AND GUSTY WINDS TO 50 MPH...EXTENDED FROM 40 MILES WEST OF ALPENA SOUTHWEST TO HOUGHTON LAKE. THE WIND GUSTED TO 35 MPH WHEN THE LINE WENT THROUGH THE HOUGHTON LAKE AREA. THIS LINE OF THUNDERSTORMS WAS MOVING EAST AT ABOUT 40 MPH. ANYONE IN CRAWFORD...ROSCOMMON AND OGEMAW COUNTIES SHOULD BE ALERT TO THESE STORMS BETWEEN 800 AM AND 845 AM. LH
Special weather statement, May 29, 8:27 AM EDT, 40 minutes before
MIZ043-044-045-046-047-063-291300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUGHTON LAKE MI 820 AM EDT WED MAY 29 1991 ...SHOWERS AND THUNDERSTORMS WERE OVER NORTH CENTRAL MICHIGAN... AT 820 AM EDT...THE NORTHEAST QUARTER OF LOWER MICHIGAN WAS COVERED BY SHOWERS AND SOME THUNDERSTORMS. THE STORMS WITH THE HEAVIEST RAINFALL WERE IN A LINE FROM NEAR ALPENA SOUTHWEST TO NEAR WEST BRANCH...22 MILES EAST OF HOUGHTON LAKE. AT ABOUT 745 AM A HAM RADIO OPERATOR NEAR GAYLORD REPORTED WIND GUSTS TO ABOUT 50 MPH AT OTSEGO LAKE ALONG WITH SOME POWER OUTAGES. LH
The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 8:13 PM EDT | Tornado Warning | APX | Mason, Oceana | 22 min |
| May 29, 6:46 AM EDT | Severe Thunderstorm Warning | APX | Charlevoix | 44 min |
| May 29, 7:52 AM EDT | Severe Thunderstorm Warning | APX | Montmorency | 53 min |
| May 29, 8:15 AM EDT | Severe Thunderstorm Warning | APX | Alpena | 45 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.