Alert archive / Michigan / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 19, NWS Detroit, MI

April 13, 1996Bay County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at Apr 13, 1996, 1:16 AM EDT for Bay County, Michigan. It was in force for 29 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
Apr 13, 1996, 1:16 AM EDT (05:16 UTC)
Expired
Apr 13, 1996, 1:45 AM EDT
In force
29 min
Issued by
NWS Detroit, MI
Area
Whole counties

County Bay County, MI

The radar

The Detroit radar (KDTX), 120 km from the middle of the area, began a volume at 05:18 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Apr 13, 1:30 AM EDTHail 0.75Bay City, 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.

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.

NWS Detroit, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 12, 4:30 PM EDT, 8 hours 46 minutes earlier.

Area forecast discussion, Apr 12, 4:30 PM EDT, 8 hours 46 minutes before
STATE FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
300 PM EDT THU APR 11 1996

A STRONG VORT MAX OVER NORTHEAST IOWA HAS MOVED VERY LITTLE THIS
AFTERNOON. ADAPS SHOWING SURFACE MOISTURE POOLING IN THE VICINITY OF
THE SURFACE WARM FRONT AND OVER NORTHERN ILLINOIS. THE THUNDERSTORMS
ARE DEVELOPING IN THE THETA-E RIDGE OVER LAKE MICHIGAN AND SOUTHWEST
LOWER MICHIGAN AND THEN MOVE EAST ACROSS LOWER MICHIGAN. THE
THUNDERSTORMS TO THE NORTH OF THE WARM FRONT BOUNDARY ARE ELEVATED.
THEREFORE SURFACE LIFTED INDICES ARE USELESS. LIFTING A PARCEL AT
700 MB ON THE DTX 18Z SOUNDING PRODUCED A LIFTED INDEX OF -3. THEREFORE
ATMOSPHERE NORTH OF SURFACE WARM FRONTAL BOUNDARY IS VERY UNSTABLE.
EQUILIBRIUM LEVEL IS IN THE 35,000 FOOT RANGE...SO WILL HAVE TO WATCH
THUNDERSTORMS THAT REACH THIS HEIGHT. HAVE RECEIVED SEVERAL REPORTS OF
LARGE HAIL ACROSS THE SOUTHERN HALF OF LOWER MICHIGAN THIS AFTERNOON.
SEVERE THREAT APPEARS TO BE EARLY TONIGHT AS VORT MAX MOVES SLOWLY EAST
ACROSS LOWER MICHIGAN. SINCE THE CONVECTION IS MAINLY ELEVATED...THE
PRIMARY THREAT OF SEVERE WEATHER WILL BE LARGE HAIL.

.DTX...SNOW ADVISORY...FAR WRN UPPER MI...LATE TONIGHT.

BOYNE

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 12, 8:58 PM EDTSevere Thunderstorm WarningDTXMacomb32 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1996Every severe thunderstorm warning in 1996

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; radar from the NEXRAD Level II archive.