Alert archive / Michigan / Flash Flood Warnings in 1996

Flash Flood Warning 8, NWS Grand Rapids, MI

May 10, 1996Berrien County, Cass County, Michigan

NWS Grand Rapids, MI issued this flash flood warning at May 10, 1996, 9:25 PM EDT for Berrien County, Cass County, Michigan. It was in force for 11 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
May 10, 1996, 9:25 PM EDT (01:25 UTC)
Expired
May 11, 1996, 8:00 AM EDT
In force
11 hr
Issued by
NWS Grand Rapids, MI
Area
Whole counties

Counties Berrien County, MI, Cass County, MI

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 1.4 hours before the alert went out and 245 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 1996-05-11Temperature 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 1996-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -91 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
468 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
-91 m²/s²
0-3 km storm-relative helicity
266 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KGRR 110125
FFWGRR
MIC021-027-111200-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
925 PM EDT FRI MAY 10 1996

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  900 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTHWEST LOWER MICHIGAN

   ...SOUTH HALF OF BERRIEN COUNTY...

THE FLOOD WARNING FOR THE SOUTH HALF OF BERRIEN COUNTY HAS BEEN
EXTENDED UNTIL 800 AM SATURDAY MORNING. LOCAL AUTHORITIES CONTINUE
TO REPORT FLOOD RELATED PROBLEMS ESPECIALLY IN THE SOUTHWEST CORNER
OF BERRIEN COUNTY AROUND THREE RIVERS. UP TO 5 INCHES OF RAIN FELL
ACROSS THE AREA LATE THURSDAY NIGHT AND EARLY FRIDAY MORNING. AS A
RESULT... NUMEROUS ROADS ARE REPORTED WASHED OUT OR BLOCKED OFF DUE
TO THE PONDING OF WATER.

AT 920 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
ONLY A FEW LIGHT RAIN SHOWERS OVER SOUTHWEST LOWER MICHIGAN. ANY
ADDITIONAL RAINFALL OVERNIGHT WILL BE QUITE LIGHT... LESS THAN A
TENTH OF AN INCH. ALTHOUGH THE THREAT OF HEAVY RAIN HAS ENDED...
THE WATER LEVELS OF MANY RIVERS AND CREEKS REMAIN HIGH OR RISING.
PONDING OF WATER IN LOW AREAS IS ALSO CAUSING ROADS TO BE IMPASSABLE.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROAD. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOU TO CROSS SAFELY.
DARKNESS ONLY SERVES TO CONCEAL THIS DANGER. IF FLOOD WATERS
THREATEN YOUR LOCATION PLAN ALTERNATIVE TRAVEL ROUTES IF POSSIBLE.

PVC
1 follow-up statement
000 
TTAA00 KGRR 110135 COR
FFWGRR
MIC021-111200-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING... CORRECTION TO FIPS CODE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
925 PM EDT FRI MAY 10 1996

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  900 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTHWEST LOWER MICHIGAN

   ...SOUTH HALF OF BERRIEN COUNTY...

THE FLOOD WARNING FOR THE SOUTH HALF OF BERRIEN COUNTY HAS BEEN
EXTENDED UNTIL 800 AM SATURDAY MORNING. LOCAL AUTHORITIES CONTINUE
TO REPORT FLOOD RELATED PROBLEMS ESPECIALLY IN THE SOUTHWEST CORNER
OF BERRIEN COUNTY AROUND THREE RIVERS. UP TO 5 INCHES OF RAIN FELL
ACROSS THE AREA LATE THURSDAY NIGHT AND EARLY FRIDAY MORNING. AS A
RESULT... NUMEROUS ROADS ARE REPORTED WASHED OUT OR BLOCKED OFF DUE
TO THE PONDING OF WATER.

AT 920 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
ONLY A FEW LIGHT RAIN SHOWERS OVER SOUTHWEST LOWER MICHIGAN. ANY
ADDITIONAL RAINFALL OVERNIGHT WILL BE QUITE LIGHT... LESS THAN A
TENTH OF AN INCH. ALTHOUGH THE THREAT OF HEAVY RAIN HAS ENDED...
THE WATER LEVELS OF MANY RIVERS AND CREEKS REMAIN HIGH OR RISING.
PONDING OF WATER IN LOW AREAS IS ALSO CAUSING ROADS TO BE IMPASSABLE.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROAD. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOU TO CROSS SAFELY.
DARKNESS ONLY SERVES TO CONCEAL THIS DANGER. IF FLOOD WATERS
THREATEN YOUR LOCATION PLAN ALTERNATIVE TRAVEL ROUTES IF POSSIBLE.

PVC

The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 7:40 AM EDTFlash Flood WarningGRRBerrien8 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.