Alert archive / Michigan / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 14, NWS Gaylord, MI

May 29, 1991Montmorency County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at May 29, 1991, 7:52 AM EDT for Montmorency County, Michigan. It was in force for 53 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: May 29, 1991, 7:52 AM EDT (11:52 UTC)
Expired: May 29, 1991, 8:45 AM EDT
In force: 53 min
Issued by: NWS Gaylord, MI
Area: Whole counties

County Montmorency County, MI

What was reported inside it

Time	Report	Where	Remark
May 29, 8:00 AM EDT	Thunderstorm Wind 0	Montmorency, 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 (KSSM), launched 00:00Z, 11.9 hours before the alert went out and 161 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: NaN m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 390 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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

Local storm report, May 29, 1:57 AM EDT, 5 hours 55 minutes before

STORM REPORT...CORRECTION OF SPELLING PAGE 2 THIRD LINE "STRAIGHT"
NATIONAL WEATHER SERVICE ALPENA MI
1240 AM EDT WED MAY 29 1991

LOCAL
TIME        EVENT      ...REPORTS ARE FOR THU MAY 28TH...
----        -----

1815        CHEBOYGAN COUNTY...8 MILES WEST OF THE TOWN OF TOWER.
            ROOF BLOWN OFF A MOBILE HOME. NUMEROUS TREES AND POWER
            LINES DOWN. SHED DESTROYED. MARBLE SIZE HAIL.

1809        MONTMORENCY COUNTY...NUMEROUS TREES AND POWER LINES
            DOWN.

1827        PRESQUE ISLE COUNTY...TREES DOWN IN VICINITY OF ONAWAY.

1840-1850   ALPENA COUNTY...M32 WEST OF M65 AT GREEN ROAD. BARN AT
            THE BARRY FARM DESTROYED. GRANERY DESTROYED AT THE
            STANDEN FARM NEAR LACHINE.
            THE ALPENA COUNTY SHERIFF DEPARTMENT REPORTED THAT ALL
            THE TREES WERE ALL LAYING TOWARD THE SOUTHEAST...AND
            THEY ASCERTAINED THAT THE DAMAGE WAS CAUSED BY STRAIGHT
            WIND.
1850        TWO TREES DOWN AT THE ALPENA COUNTRY CLUB.

1910        IOSCO COUNTY...POWERS LINES DOWN IN HALE AND TAWAS CITY.
            A FEW TREE DOWN IN TAWAS CITY.

1925        OSCODA COUNTY...TREE AND POWER LINES DOWN NEAR COMMINS.
8
1940        ALCONA COUNTY...WINDS AT STURGEON POINT LIGHTHOUSE 49
            MILES AN HOUR. TREES AND POWER LINES DOWN AT GLENNIE.

THESE ARE ALL PLIMINARY REPORTS...AND THE REPORT WILL BE UPDATED
IF MORE INFORMATION IS RECEIVED.

SHIVELY

Special weather statement, May 29, 7:35 AM EDT, 17 minutes before

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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, 8:15 AM EDT	Severe Thunderstorm Warning	APX	Alpena	45 min
May 29, 9:07 AM EDT	Tornado Warning	APX	Iosco	23 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1991 Every severe thunderstorm warning 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.