Alert archive / Michigan / Flash Flood Warnings in 1994

Flash Flood Warning 7, NWS Grand Rapids, MI

July 14, 1994Kent County, Montcalm County, Michigan

NWS Grand Rapids, MI issued this flash flood warning at Jul 14, 1994, 1:12 PM EDT for Kent County, Montcalm County, Michigan. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Jul 14, 1994, 1:12 PM EDT (17:12 UTC)
Expired
Jul 14, 1994, 5:15 PM EDT
In force
4 hr
Issued by
NWS Grand Rapids, MI
Area
Whole counties

Counties Kent County, MI, Montcalm County, MI

The nearest sounding before it

Detroit, MI (KFNT), launched 12:00Z, 5.2 hours before the alert went out and 164 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 12:00Z on 1994-07-14Temperature 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 12:00Z on 1994-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 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
967 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
104 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 141714
FFWGRR
MIC081-117-142115-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
112 PM EDT THU JUL 14 1994
 
THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  515 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST MICHIGAN
 
   ...NORTHEASTERN KENT COUNTY...MONTCALM COUNTY
 
AT 110 PM EDT WEATHER RADAR DETECTED NUMEROUS SHOWERS AND THUNDERSTORMS
PRODUCING HEAVY RAIN ALONG HIGHWAY 46 STRETCHING FROM HOWARD CITY TO
VESTABURG IN MONTCALM COUNTY. A SKYWARN SPOTTER AT WABASIS LAKE IN
NORTHEAST KENT COUNTY MEASURED 2.30 INCHES OF RAINFALL BETWEEN 1030 AND
1130 AM. THE MONTCALM COUNTY SHERIFF REPORTED A WATER DEPTH OF SIX
INCHES AT SIDNEY ROAD AND HIGHWAY 91 IN SOUTHWEST MONTCALM COUNTY.
 
THE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 15 MILES AN HOUR
AND SHOULD EXIT MONTCALM COUNTY BY 215 PM EDT. MEANTIME... AN INCH OR
TWO OF ADDITIONAL RAINFALL IS POSSIBLE IN MONTCALM COUNTY.
 
PERSONS LIVING ALONG TAMARACK CREEK IN HOWARD CITY AND INDIAN LAKES NEAR
THE LITTLE MANISTEE RIVER SHOULD MONITOR WATERS LEVELS. IF THE WATER
BEGINS TO RISE... MOVE TO HIGHER GROUND IMMEDIATELY.
 
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.
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY... AND
YOU SHOULD MOVE TO HIGHER GROUND.
TPH
 
&

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, Jul 14, 9:50 AM EDT, 3 hours 22 minutes before
MIZ020-021-025>027-031>033-037>039-043>045-050-515-141530-

SPECIAL WEATHER STATEMENT
FOR NORTHWEST AND WEST CENTRAL LOWER MICHIGAN
NATIONAL WEATHER SERVICE  MUSKEGON MI
945 AM EDT THU JUL 14 1994

...THUNDERSTORMS MOVING THROUGH MUCH OF NORTHWEST AND WEST CENTRAL
   LOWER MICHIGAN...

AT 930 AM EDT...A LARGE AREA OF SHOWERS AND SCATTERED THUNDERSTORMS
WAS NOTED OVER WEST CENTRAL AND NORTHWEST LOWER MICHIGAN AND INCLUDED
THE ADJOINING WATERS OF CENTRAL LAKE MICHIGAN.

THE HEAVIEST AREA OF STORMS WAS NOTED OVER THE WEST CENTRAL LOWER
MICHIGAN COUNTIES OF MECOSTA...NEWAYGO...OCEANA AND MUSKEGON.  MOST
SHOWERS AND THUNDERSTORMS WERE OF THE NORMAL SUMMER GARDEN-STYLE
VARIETY.  WEATHER OBSERVERS IN NORTHERN MUSKEGON COUNTY INDICATED ONE
STORM PRODUCING .75 INCHES RAINFALL.  THE WEATHER SERVICE AT THE MUSKEGON
COUNTY RECORDED .07 INCHES RAIN FROM ANOTHER STORM.
.
THE AREA OF SHOWERS AND THUNDERSTORMS WAS MOVING SLOWLY SOUTHEAST
WHILE THE STORMS WERE SLIDING EAST AND WILL TAKE MOST OF THE MORNING
TO CLEAR THE REGION.

DEADLY LIGHTNING WAS ACCOMPANYING A FEW OF THE HEAVIER STORMS...OUTDOOR
ACTIVITIES MAYBE HALTED AND SAFETY PRECAUTIONS TAKEN.

Nearby

Flash Flood Warnings in Michigan, 1994Every flash flood 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.