Flash Flood Warning 31, NWS Grand Rapids, MI

Issued

Jun 21, 1996, 10:08 PM EDT (02:08 UTC)

Expired

Jun 22, 1996, 1:15 AM EDT

In force

3 hr

Issued by

NWS Grand Rapids, MI

Area

Whole counties

Counties Clare County, MI, Osceola County, MI

000 
TTAA00 KGRR 220208
FFWGRR
MIC035-133-220515-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1008 PM EDT FRI JUN 21 1996
 
THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  115 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL LOWER MICHIGAN
 
   ...CLARE COUNTY
 
IN WEST CENTRAL LOWER MICHIGAN
 
   ...SOUTHERN OSCEOLA COUNTY
 
AT 10 PM NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATED 1.5 TO 3.5
INCHES OF RAIN HAD FALLEN ACROSS SOUTHERN OSCEOLA AND INTO CLARE
COUNTIES IN THE PAST TWO HOURS. THE HEAVIEST BAND OF RAIN OF 2.5
TO 3.5 INCHES HAS FALLEN FROM ASHTON TO NORTH OF EVART TO CLARE.
ADDITIONAL SHOWERS AND THUNDERSTORMS WILL CONTINUE TO MOVE ACROSS
THIS AREA WITH UP TO ANOTHER INCH OF RAIN POSSIBLE BY MIDNIGHT.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. MOST FLASH
FLOOD DEATHS OCCUR IN AUTOMOBILES. IT IS IMPORTANT TO KNOW WHERE YOU
ARE RELATIVE TO STREAMS.. RIVERS... OR CREEKS. THEY CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID CAMPING ALONG STREAMS OR
CREEKS DURING HEAVY RAINS.
 
TEW

NWS Grand Rapids, MI wrote its last area forecast discussion before this flash flood warning went out at Jun 21, 1:20 PM EDT, 8 hours 48 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
125 PM EDT FRI JUN 21 1996

AFD WILL BE A LITTLE EARLY TODAY...TRYING TO KEEP UP ON SEVERE
WEATHER THREAT. IN THE SHORT TERM THE SFC RUC DATA SHOWS PRESSURE
FALLS, THETA ADVECTION AND MOISTURE CONVERGENCE OVER NRN IL/SRN WI.
CI/AC SHIELD HOLDING TEMPS DOWN A BIT...BUT HOLES ARE DEVELOPING
WEST OF LAKE MI.

12Z RUN INDICATES STRONG 850 MB JET MOVING INTO IL/WI AROUND 18Z.
AGEOSTROPHIC FLOW AROUND THE 250 MB JET PROVIDING SOME UPPER
LEVEL SUPPORT. THESE DYNAMICS ARE PROGGED TO MOVE EWD THROUGH THE
EVENING. 500 MB WINDS ARE RELATIVELY STRONG AND WITH E-W ORIENTATION
OF THE SFC BNDRY...DERECHO EVENT STILL A GOOD POSIBILITY. SFC HEATING
WILL BE KEY. THE MOST FAVORABLE DYNAMICS OCCUR OVER WESTERN MI NEAR
00Z. STRONG SFC MOISTURE CONVERGENCE ALONG WITH UPPER LEVEL DIVERGENCE
AND THE LOW LEVEL JET COMBINE OVER THE AREA. PCGRIDDS OVERLAY OF
CAPE AND HELICITY SHOW THE BEST AREAS FOR SVR WEATHER SHOULD BE
SOUTHWEST LOWER.

SFC COLD FRONT WILL MOVE INTO WRN MI AROUND 06Z. DYNAMICS SHOULD
BE EAST OF FCST AREA ATM. SHOWERS AND THUNDERSTORMS LIKELY FOR
TONIGHT IS A GOOD FORECAST. STORMS WILL DEFINTELY TAPER OFF AFTER
MIDNIGHT. FWC TEMPS LOOK REASONABLE.

GRR TB 068/083 1771
LAN TB 068/082 1771

END/GARNET

Flash Flood Warnings in Michigan, 1996Every flash flood warning in 1996

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.