Alert archive / Michigan / Flash Flood Warnings in 1994
Flash Flood Warning 4, NWS Detroit, MI
NWS Detroit, MI issued this flash flood warning at Apr 25, 1994, 10:43 PM EDT for Genesee County, Michigan. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Apr 25, 1994, 10:43 PM EDT (02:43 UTC)
- Expired
- Apr 26, 1994, 12:45 AM EDT
- In force
- 2 hr
- Issued by
- NWS Detroit, MI
- Area
- Whole counties
County Genesee County, MI
The nearest sounding before it
Detroit, MI (KFNT), launched 00:00Z, 2.7 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.
- Mixed-layer CAPE
- 170 J/kg
- Mixed-layer CIN
- -113 J/kg
- Mixed-layer LCL
- 1027 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 89 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFNT 260246 RRA FFWFNT MIC049-260445- BULLETIN - EBS ACTIVATION REQUESTED URBAN AND SMALL STREAM FLOOD WARNING NATIONAL WEATHER SERVICE FLINT MI 1043 PM EDT MON APR 25 1994 THE NATIONAL WEATHER SERVICE IN FLINT HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1245 AM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN EAST CENTRAL LOWER MICHIGAN ...GENESEE COUNTY AT 1040 PM...GENESEE COUNTY CENTRAL DISPATCH REPORTED WIDESPREAD FLOODING. NORTH GENESEE ROAD...IN THE 6000 BLOCK IN THE COMMUNITY OF GENESEE...15 MILES NORTH NORTHEAST OF FLINT...WAS REPORTED TO BE UNDER WATER. ALSO...FLUSHING ROAD NEAR I75 ALSO WAS REPORTED TO BE FLOODED. THIS FLOODING HAS RESULTED FROM THE RAINFALL PRODUCED BY A SERIES OF THUNDERSTORMS ACROSS THE COUNTY. 1 TO 2 INCHES OF RAIN HAS FALLEN SINCE EARLY THIS EVENING. THUNDERSTORMS WILL CONTINUE FOR THE NEXT 2 HOURS ACROSS GENESEE COUNTY. THE THUNDERSTORMS SHOULD BEGIN TO TAPER OFF AROUND 100 AM. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. &
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, Apr 25, 7:35 PM EDT, 3 hours 8 minutes before
MIZ053>055-060>062-260035- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FLINT MI 735 PM EDT MON APR 25 1994 ...THUNDERSTORMS CONTINUE TO DROP HEAVY RAIN ACROSS PORTIONS OF EAST CENTRAL LOWER MICHIGAN... AT 733 PM...THUNDERSTORMS CONTINUED ACROSS PORTIONS OF EAST CENTRAL LOWER MICHIGAN. THESE STORMS WERE IN AN AREA THAT EXTENDED SOUTH HIGHWAY M-46. A STRONG STORM WAS LOCATED IN SOUTHEAST SANILAC COUNTY NEAR THE COMMUNITY OF AMADOR...75 MILES EAST OF FLINT. ANOTHER STRONG STORM WAS NEAR BURNSIDE AND IMLAY CITY. IMAY CITY IS 41 MILES EAST OF FLINT. ANOTHER STRONG STORM WAS OVER SWARTZ CREEK...13 MILES SOUTHWEST OF FLINT. MOVEMENT OF THESE STORMS WAS TO THE EAST AT 40 MILES AN HOUR. THE SWARTZ CREEK STORM WILL AFFECT GRAND BLANC BY 800 PM. THE IMLAY CITY STORM WILL MOVE INTO ST. CLAIR COUNTY BY 745 PM AND THE STORM NEAR BURNSIDE WILL AFFECT ROSEBURG...65 MILES EAST NORTHEAST OF FLINT...BY 815 PM. THESE STORMS CONTAINT VERY HEAVY RAIN...CONTINUOUS LIGHTNING AND POSSIBLY SOME SMALL HAIL. DURING A THUNDERSTORM...REMAIN INDOORS AND REFRAIN FROM USING WATER UNTIL THE STORM HAS PASSED.
Special weather statement, Apr 25, 8:08 PM EDT, 2 hours 35 minutes before
MIZ063-068>070-075-076-082-083-260200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT MI 807 PM EDT MON APR 25 1994 ...STRONG THUNDERSTORMS WERE CLIPPING NORTHERN PORTIONS OF ST. CLAIR AND OAKLAND COUNTIES... AT 800 PM...RADAR INDICATED A BAND OF THUNDERSTORMS...SOME WITH VERY HEAVY RAIN AND FREQUENT LIGHTNING...FROM JUST NORTH OF PORT HURON WEST ACROSS THE FLINT AREA. SOME OF THESE STORMS MAY ALSO CONTAIN SMALL HAIL AND STRONG WINDS. THE STORMS WERE TRACKING EAST AROUND 40 MPH. COMMUNITIES THAT WILL BE AFFECTED BY THESE STORMS THROUGH 10 PM INCLUDE YALE...CAPAC...AND OXFORD. CAPAC IS 47 MILES NORTH OF DOWNTOWN DETROIT...AND OXFORD IS 35 MILES NORTHWEST OF DOWNTOWN DETROIT. A SPECIAL MARINE WARNING IS IN EFFECT FOR THE SHORE OF LAKE HURON NORTH OF PORT HURON UNTIL 850 PM. BOATERS ALONG THE ST. CLAIR COUNTY SHORE OF LAKE HURON SHOULD FIND SAFE HARBOR NOW. IF YOU LIVE IN THE AFFECTED AREA...FIND SHELTER INSIDE A STRONG BUILDING. HEAVY RAIN UP TO ONE INCH IN A FEW HOURS HAS BEEN REPORTED WITH THESE STORMS. WATCH OUT FOR PONDING OF WATER ON ROADS. YORK
Special weather statement, Apr 25, 8:46 PM EDT, 1 hour 57 minutes before
MIZ053>055-060>062-260145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FLINT MI 846 PM EDT MON APR 25 1994 ...THUNDERSTORMS CONTINUE TO RUMBLE THROUGH PORTIONS OF EAST CENTRAL LOWER MICHIGAN... AT 845 PM...THUNDERSTORMS WITH VERY HEAVY RAIN...INTENSE CLOUD TO GROUND LIGHTNING AND POSSIBLY SOME SMALL HAIL...EXTENDED FROM THE LAKE HURON SHORELINE NEAR RICHMONDVILLE IN SANILAC COUNTY...SOUTHWEST TO LAPEER...TO FLINT...THROUGH DURAND IN SHIAWASSEE COUNTY THEN ON TO LANSING. THE STRONGEST STORMS WERE NEAR ALMONT...45 MILES EAST OF FLINT AND NEAR DURAND...24 MILES SOUTHWEST OF FLINT. MOVEMENT WAS TO THE EAST AT 40 MILES AN HOUR. THE STORM NEAR DURAND WILL MAKE IT TO RANKIN...14 SOUTH OF FLINT...BY 900 PM...WHILE THE ALMONT STORM WILL MOVE INTO ST. CLAIR COUNTY ALSO BY 900 PM. THESE STORMS CONTINUE TO DUMP HEAVY RAIN...HAVE STRONG GUSTY WIND AND POSSIBLY SOME SMALL HAIL. ALSO...AREAS WHERE THE RAIN HAS BEEN HEAVY...THE GROUND IS BECOMING SATURATED. THEREFOR...IF THESE AREAS CONTINUE TO RECEIVE HEAVY RAIN OVER THE NEXT SEVERAL HOURS...URBAN AREAS AND SMALL STREAMS MAY BEGIN TO FLOOD. MOTORISTS SHOULD REMAIN ALERT FOR REDUCED VISIBILITIES DURING DOWNPOURS OF RAIN.t STREETS MAY FLOOD QUICKLY.
Special weather statement, Apr 25, 8:50 PM EDT, 1 hour 53 minutes before
MIZ053>055-060>062-260145- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE FLINT MI 846 PM EDT MON APR 25 1994 ...THUNDERSTORMS CONTINUE TO RUMBLE THROUGH PORTIONS OF EAST CENTRAL LOWER MICHIGAN... AT 845 PM...THUNDERSTORMS WITH VERY HEAVY RAIN...INTENSE CLOUD TO GROUND LIGHTNING AND POSSIBLY SOME SMALL HAIL...EXTENDED FROM THE LAKE HURON SHORELINE NEAR RICHMONDVILLE IN SANILAC COUNTY...SOUTHWEST TO LAPEER...TO FLINT...THROUGH DURAND IN SHIAWASSEE COUNTY THEN ON TO LANSING. THE STRONGEST STORMS WERE NEAR ALMONT...45 MILES EAST OF FLINT AND NEAR DURAND...24 MILES SOUTHWEST OF FLINT. MOVEMENT WAS TO THE EAST AT 40 MILES AN HOUR. THE STORM NEAR DURAND WILL MAKE IT TO RANKIN...14 SOUTH OF FLINT...BY 900 PM...WHILE THE ALMONT STORM WILL MOVE INTO ST. CLAIR COUNTY ALSO BY 900 PM. THESE STORMS CONTINUE TO DUMP HEAVY RAIN...HAVE STRONG GUSTY WIND AND POSSIBLY SOME SMALL HAIL. ALSO...AREAS WHERE THE RAIN HAS BEEN HEAVY...THE GROUND IS BECOMING SATURATED. THEREFORE...IF THESE AREAS CONTINUE TO RECEIVE HEAVY RAIN OVER THE NEXT SEVERAL HOURS...URBAN AREAS AND SMALL STREAMS MAY BEGIN TO FLOOD. MOTORISTS SHOULD REMAIN ALERT FOR REDUCED VISIBILITIES DURING DOWNPOURS OF RAIN. STREETS MAY FLOOD QUICKLY. MJN ...CORRECTED FOR SPELLING...
Special weather statement, Apr 25, 9:51 PM EDT, 52 minutes before
MIZ063-068>070-075-076-082-083-260400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT MI 950 PM EDT MON APR 25 1994 ...STRONG THUNDERSTORMS WITH HEAVY RAINFALL PERSISTED OVER NORTH PORTIONS OF ST. CLAIR AND OAKLAND COUNTIES... AT 945 PM...RADAR INDICATED A BAND OF THUNDERSTORMS...SOME WITH VERY HEAVY RAIN AND FREQUENT LIGHTNING...FROM JUST NORTH OF PORT HURON WEST ACROSS THE FLINT AREA. THESE STORMS HAVE PERSISTED IN THE SAME GENERAL AREA SINCE 700 PM...DROPPING UP TO AN INCH AND A HALF OF RAIN IN THE FLINT AND LANSING AREAS. THE STORMS WERE TRACKING EAST AROUND 40 MPH AND WILL CONTINUE TO AFFECT THE SAME COMMUNITIES THROUGH MIDNIGHT. ALTHOUGH SOME GUSTY WINDS AND SMALL HAIL ARE POSSIBLE...THE MAIN THREAT FROM THESE STORMS WILL BE HEAVY RAIN AND DANGEROUS LIGHTNING. PERSONS IN NORTHERN ST. CLAIR COUNTY SHOULD BE ESPECIALLY ALERT TO THE POSSIBILITY OF MINOR FLOODING OF ROADS AND POOR DRAINAGE AREAS. STORMS IN NORTHERN LIVINGSTON...OAKLAND...AND MACOMB COUNTIES WILL ALSO HAVE SOME BRIEFLY HEAVY RAIN...BUT NO FLOODING IS EXPECTED THERE. IF YOU ARE ON THE ROAD TONIGHT NORTH OF DETROIT...BE PREPARED FOR AREAS OF POOR VISIBILITY IN HEAVY RAIN. WATCH FOR PONDING OF WATER ON ROADS. STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST STATEMENTS. YORK
Special weather statement, Apr 25, 9:54 PM EDT, 49 minutes before
MIZ048-053>055-060>062-260255- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FLINT MI 955 PM EDT MON APR 25 1994 ...THE GROUND IS BECOMING SATURATED DUE TO CONTINUED HEAVY RAIN... AT 952 PM...AN AREA OF THUNDERSTORMS CONTINUED ACROSS MUCH OF EAST CENTRAL LOWER MICHIGAN. THE STRONGEST STORMS WERE JUST WEST OF FLINT. MOVEMENT OF THIS AREA WAS TO THE EAST AT 40 MILES AN HOUR. THE STORM JUST WEST OF FLINT WILL AFFECT THE COMMUNITY OF LAPEER BY 1015 PM. THUNDERSTORMS WILL CONTINUE TO MOVE OVER SHIAWASSEE COUNTY...GENESEE COUNTY AND LAPEER COUNTY FOR THE NEXT SEVERAL HOURS AND WILL PRODUCE COPIOUS AMOUNTS OF RAIN. THE GROUND IS BECOMING SATURATED AND POSSIBLE URBAN AND SMALL STREAM FLOODING IS A POSSIBILITY. THESE THUNDERSTORMS WILL ALSO PRODUCE CLOUD TO GROUND LIGHTNING. MOTORISTS SHOULD REMAIN ALERT FOR REDUCED VISIBILITIES DURING DOWNPOURS OF RAIN. STREETS MAY FLOOD QUICKLY. TUNE IN NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION FOR THE LATEST WEATHER INFORMATION ON THIS DANGEROUS WEATHER SITUATION.
The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 12:59 PM EDT | Severe Thunderstorm Warning | DTX | Livingston, Oakland, Washtenaw | 46 min |
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.