Alert archive / Michigan / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 6, NWS Gaylord, MI

May 11, 1994Alpena County, Montmorency County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at May 11, 1994, 4:21 PM EDT for Alpena County, Montmorency County, Michigan. It was in force for 34 min.

The area

The counties it named.

The facts

Issued: May 11, 1994, 4:21 PM EDT (20:21 UTC)
Expired: May 11, 1994, 4:55 PM EDT
In force: 34 min
Issued by: NWS Gaylord, MI
Area: Whole counties

Counties Alpena County, MI, Montmorency County, MI

The nearest sounding before it

Sault Ste Marie, MI (KY62), launched 12:00Z, 8.4 hours before the alert went out and 163 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: 558 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 324 m²/s²
0-3 km storm-relative helicity: 460 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

Special weather statement, May 11, 3:30 PM EDT, 51 minutes before

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Special weather statement, May 11, 3:31 PM EDT, 50 minutes before

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Special weather statement, May 11, 3:39 PM EDT, 42 minutes before

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Special weather statement, May 11, 3:40 PM EDT, 41 minutes before

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Special weather statement, May 11, 4:05 PM EDT, 16 minutes before

MIZ016>019-023-024-029-030-036-042-509-514-112100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALPENA MI
405 PM EDT WED MAY 11 1994

...STRONG THUNDERSTORMS WERE MOVING ACROSS NORTHERN LOWER MICHIGAN
THIS AFTERNOON...

AT 400 PM RADAR INDICATED STRONG THUNDERSTORMS 5 MILES SOUTHWEST OF
ROGERS CITY... OR 25 MILES NORTHWEST OF ALPENA... AND JUST NORTH OF
JOHANNESBURG... OR 45 MILES WEST OF ALPENA. THE STORM NEAR JOHANNESBURG
HAS PRODUCED SMALL HAIL AND HEAVY RAIN.

THE SCATTERED THUNDERSTORMS WERE MOVING EAST SOUTHEAST AT 35 MPH AND
WILL EXTEND FROM PRESQUE ISLE TO HILLMAN... ATLANTA... AND LEWISTON BY
420 PM... AND WILL EXTEND FROM ALPENA TO FLETCHER POND BY 450 PM.

PERSONS IN NORTHEAST LOWER MICHIGAN SHOULD TAKE COVER IF THREATENING
WEATHER APPROACHES.
HOLLINGSWORTH

Special weather statement, May 11, 4:09 PM EDT, 12 minutes before

MIZ016>019-023-024-029-030-036-042-509-514-112100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALPENA MI
405 PM EDT WED MAY 11 1994

...STRONG THUNDERSTORMS WERE MOVING ACROSS NORTHERN LOWER MICHIGAN
THIS AFTERNOON...

AT 400 PM RADAR INDICATED STRONG THUNDERSTORMS 5 MILES SOUTHWEST OF
ROGERS CITY... OR 25 MILES NORTHWEST OF ALPENA... AND JUST NORTH OF
JOHANNESBURG... OR 45 MILES WEST OF ALPENA. THE STORM NEAR JOHANNESBURG
HAS PRODUCED SMALL HAIL AND HEAVY RAIN.

THE SCATTERED THUNDERSTORMS WERE MOVING EAST SOUTHEAST AT 35 MPH AND
WILL EXTEND FROM PRESQUE ISLE TO HILLMAN... ATLANTA... AND LEWISTON BY
420 PM... AND WILL EXTEND FROM ALPENA TO FLETCHER POND BY 450 PM.

PERSONS IN NORTHEAST LOWER MICHIGAN SHOULD TAKE COVER IF THREATENING
WEATHER APPROACHES.
HOLLINGSWORTH

The office that day

Everything else NWS Gaylord, MI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 11, 5:25 PM EDT	Severe Thunderstorm Warning	APX	Alcona, Iosco, Oscoda	65 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1994 Every 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.