Alert archive / Michigan / Flash Flood Warnings in 1996

Flash Flood Warning 16, NWS Detroit, MI

June 22, 1996Lapeer County, Michigan

NWS Detroit, MI issued this flash flood warning at Jun 22, 1996, 12:23 AM EDT for Lapeer County, Michigan. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 22, 1996, 12:23 AM EDT (04:23 UTC)
Expired
Jun 22, 1996, 3:30 AM EDT
In force
3 hr
Issued by
NWS Detroit, MI
Area
Whole counties

County Lapeer County, MI

The radar

The Detroit radar (KDTX), 48 km from the middle of the area, began a volume at 04:23 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.

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 4.4 hours before the alert went out and 44 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-pSkew-T log-p diagram, Detroit, MI at 00:00Z on 1996-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 471 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 00:00Z on 1996-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 135 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
471 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
997 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
135 m²/s²
0-3 km storm-relative helicity
223 m²/s²
Significant tornado parameter
0.2
Supercell composite
3.1

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 flash flood 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, Jun 21, 6:25 PM EDT, 5 hours 58 minutes before
MIZ050-056>083-220000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
623 PM EDT FRI JUN 21 1996

...SEVERE THUNDERSTORM WATCH NUMBER 657 REMAINS IN EFFECT UNTIL
800 PM EDT THIS EVENING FOR THE SOUTHERN THIRD OF LOWER MICHIGAN...

SEVERE THUNDERSTORM WATCH NUMBER 657 REMAINS IN EFFECT UNTIL
800 PM EDT THIS EVENING FOR THE SOUTHERN THIRD OF LOWER MICHIGAN.
THE WATCH IS GENERALLY SOUTH OF A LINE FROM MUSKEGON TO PORT HURON.
IN SOUTHEAST MICHIGAN...THIS WATCH INCLUDES SHIAWASSEE...GENESEE...
LAPEER...ST. CLAIR...LIVINGSTON...OAKLAND...MACOMB...WASHTENAW...
WAYNE...LENAWEE...AND MONROE COUNTIES.

AT 620 PM EDT...DOPPLER RADAR INDICATED ISOLATED THUNDERSTORMS
OVER SOUTHWEST LOWER MICHIGAN. THEY WERE LOCATED OVER NORTHWEST
KENT COUNTY ABOUT 10 MILES NORTH OF GRAND RAPIDS AND OVER
ST. JOSEPH COUNTY NEAR THREE RIVERS. NO SEVERE WEATHER HAS BEEN
REPORTED WITH EITHER OF THESE THUNDERSTORMS.

ELSEWHERE...AN AREA OF LIGHT TO MODERATE RAIN WAS LOCATED FROM THE
OSCODA AREA...TO BETWEEN MOUNT PLEASANT AND HARBOR BEACH...TO
BETWEEN KALAMAZOO AND PONTIAC.

MOVEMENT WAS TO THE EAST 50 MILES AN HOUR.

THOSE IN THE WATCH AREA ARE URGED TO PREPARE FOR THE ONSET OF
POTENTIALLY SEVERE WEATHER... AND LISTEN TO NATIONAL WEATHER SERVICE
WEATHER RADIO FOR THE LATEST WARNINGS AND STATEMENTS.

BOYNE
Special weather statement, Jun 21, 6:39 PM EDT, 5 hours 44 minutes before
MIZ050-056>083-220000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
635 PM EDT FRI JUN 21 1996

...SEVERE THUNDERSTORM WATCH NUMBER 657 HAS BEEN CANCELLED
FOR THE SOUTHERN THIRD OF LOWER MICHIGAN...

AT 630 PM...THE NATIONAL WEATHER SERVICE CANCELLED SEVERE
THUNDERSTORM WATCH NUMBER 657 WHICH WAS IN EFFECT FOR THE
SOUTHERN THIRD OF LOWER MICHIGAN.

THE THUNDERSTORMS WHICH PROMTED THE WATCH EARLIER IN THE
AFTERNOON HAVE DECREASED DRAMATICALLY AS THEY MOVED THROUGH
SOUTHWEST LOWER MICHIGAN. SINCE THE REDEVELOPMENT OF SEVERE
THUNDERSTORMS IS UNLIKELY TONIGHT...THE SEVERE THUNDERSTORM
WATCH WAS CANCELLED EARLY.

BOYNE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 9:52 PM EDTFlash Flood WarningDTXMidland3 hr
Jun 21, 10:20 PM EDTSevere Thunderstorm WarningDTXMidland40 min
Jun 21, 10:35 PM EDTFlash Flood WarningDTXBay, Saginaw3 hr
Jun 21, 10:47 PM EDTTornado WarningDTXMidland, Saginaw43 min
Jun 21, 11:14 PM EDTTornado WarningDTXGenesee61 min
Jun 21, 11:33 PM EDTFlash Flood WarningDTXTuscola3 hr
Jun 21, 11:34 PM EDTTornado WarningDTXLapeer56 min
Jun 21, 11:45 PM EDTTornado WarningDTXSaginaw, Tuscola30 min
Jun 22, 12:07 AM EDTSevere Thunderstorm WarningDTXBay, Tuscola68 min
Jun 22, 12:18 AM EDTSevere Thunderstorm WarningDTXTuscola57 min
Jun 22, 12:30 AM EDTTornado WarningDTXLapeer45 min
Jun 22, 12:46 AM EDTTornado WarningDTXSaint Clair59 min
Jun 22, 1:02 AM EDTFlash Flood WarningDTXSaint Clair, Sanilac3 hr
Jun 22, 1:02 AM EDTTornado WarningDTXLapeer43 min
Jun 22, 1:40 AM EDTTornado WarningDTXSaint Clair65 min

Nearby

Flash Flood Warnings in Michigan, 1996Every flash flood 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.