Alert archive / Michigan / Flash Flood Warnings in 1996

Flash Flood Warning 9, NWS Detroit, MI

June 18, 1996Bay County, Michigan

NWS Detroit, MI issued this flash flood warning at Jun 18, 1996, 7:55 AM EDT for Bay County, Michigan. It was in force for 2 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 18, 1996, 7:55 AM EDT (11:55 UTC)
Expired
Jun 18, 1996, 10:00 AM EDT
In force
2 hr
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 11:57 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, 11.9 hours before the alert went out and 119 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 1996-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1996-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 251 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
662 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
251 m²/s²
0-3 km storm-relative helicity
415 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KDTX 181157
FFWDTX
MIC017-049-087-145-155-157-181800-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE DETROIT PONTIAC MI
755 AM EDT TUE JUN 18 1996

THE NATIONAL WEATHER SERVICE IN DETROIT PONTIAC HAS EXTENDED THE
FLOOD WARNING FOR URBAN AND SMALL STREAMS EFFECTIVE THROUGH 1000 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTHEAST LOWER MICHIGAN

   ...BAY COUNTY...GENESEE COUNTY...LAPEER COUNTY...SAGINAW COUNTY
   ...SHIAWASSEE COUNTY...TUSCOLA COUNTY

AT 755 AM EDT...SHOWERS AND A FEW THUNDERSTORMS CONTINUED TO MOVE INTO
THE MICHIGAN THUMB.  ONE TO TWO INCHES OF RAIN HAVE FALLEN IN THE AREA
OVERNIGHT.

SHOWERS AND A FEW THUNDERSTORMS WILL CONTINUE OVER THE AREA
THIS MORNING.

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A
SMALL ONE...ON FOOT.

WH
&

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 1:07 AM EDTFlash Flood WarningDTXBay, Genesee, Saginaw, Shiawassee, Tuscola7 hr
Jun 18, 1:07 AM EDTFlash Flood WarningDTXLapeer7 hr
Jun 18, 7:55 AM EDTFlash Flood WarningDTXGenesee, Lapeer, Saginaw, Shiawassee, Tuscola2 hr
Jun 18, 3:50 PM EDTFlash Flood WarningDTXOakland, Wayne3 hr

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.