Alert archive / Michigan / Flash Flood Warnings in 1994

Flash Flood Warning 3, NWS Detroit, MI

February 21, 1994Genesee County, Michigan

NWS Detroit, MI issued this flash flood warning at Feb 21, 1994, 5:45 AM EST for Genesee County, Michigan. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Feb 21, 1994, 5:45 AM EST (10:45 UTC)
Expired
Feb 21, 1994, 8:45 AM EST
In force
3 hr
Issued by
NWS Detroit, MI
Area
Whole counties

County Genesee County, MI

The nearest sounding before it

Detroit, MI (KFNT), launched 00:00Z, 10.8 hours before the alert went out and 40 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 1994-02-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 1994-02-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -50 square meters per square second.1939587897Sfc1 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
562 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
-50 m²/s²
0-3 km storm-relative helicity
5 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 KFNT 211045
FFWFNT
MIC049-211345-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
URBAN AND SMALL STREAM FLOOD WARNING
NATIONAL WEATHER SERVICE FLINT MI
545 AM EST MON FEB 21 1994

THE NATIONAL WEATHER SERVICE HAS EXTENDED THE URBAN AND SMALL
STREAM FLOOD WARNING EFFECTIVE UNTIL 845 AM EST FOR PEOPLE IN
THE FOLLOWING COUNTY

   IN THE EAST CENTRAL PART OF LOWER MICHIGAN
      GENESEE

AT 530 AM...THE FLOOD WARNING FOR KEARSLEY CREEK IN DAVISON HAS BEEN
EXTENDED.  THE LEVEL OF THE KEARSELY CREEK WAS 9.41 FEET AND CONTINUED
TO FALL SLOWLY.  THE CREEK IS EXPECTED TO REMAIN OVER FLOOD STAGE
THROUGH THIS MORNING.  THE RISE IN THE RIVER IS PRIMARILY THE RESULT OF
THE SNOWMELT OF THE PAST COUPLE OF DAYS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY.
THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY.
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED IMMEDIATELY.
MOVE TO HIGHER GROUND.

NADOLSKIl

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.