Alert archive / Michigan / Flash Flood Warnings in 2012
Flash Flood Warning 3, NWS Detroit, MI
NWS Detroit, MI issued this flash flood warning at Mar 15, 2012, 8:02 PM EDT for Monroe County, Michigan. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Mar 15, 2012, 8:02 PM EDT (00:02 UTC)
- Expired
- Mar 16, 2012, 12:00 AM EDT
- In force
- 4 hr
- Issued by
- NWS Detroit, MI
- Area
- Storm-based polygon
- Flood severity
- None
County Monroe County, MI
The radar
The Detroit radar (KDTX), 88 km from the middle of the area, began a volume at 00:03 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 0.0 hours before the alert went out and 90 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
- 1537 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 984 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 143 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 11.2
The text
As transmitted, in the capitals the NWS used until 2016.
491
WGUS53 KDTX 160002
FFWDTX
MIC115-160400-
/O.NEW.KDTX.FF.W.0003.120316T0002Z-120316T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
802 PM EDT THU MAR 15 2012
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
* FLASH FLOOD WARNING FOR...
MONROE COUNTY IN SOUTHEAST MICHIGAN...
* UNTIL MIDNIGHT EDT
* AT 801 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
WARNED AREA. RAINFALL ESTIMATES ARE NEAR 3 INCHES IN A SHORT PERIOD
OF TIME. ADDITIONAL RAINFALL IS POSSIBLE.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
CARLETON...DUNDEE...MONROE...TEMPERANCE...IDA...LAMBERTVILLE...LUNA
PIER...MAYBEE...OTTAWA LAKE AND PETERSBURG.
RADAR ESTIMATES ARE NEAR 3 INCHES THUS FAR. ADDITIONAL RAINFALL IS
POSSIBLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
&&
LAT...LON 4208 8377 4209 8329 4203 8318 4198 8320
4196 8325 4192 8326 4192 8330 4193 8331
4188 8333 4186 8338 4180 8341 4179 8344
4175 8342 4173 8344 4172 8376
$$
DRK2 follow-up statements
291
WGUS73 KDTX 160252
FFSDTX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1052 PM EDT THU MAR 15 2012
MIC115-160400-
/O.CON.KDTX.FF.W.0003.000000T0000Z-120316T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONROE MI-
1052 PM EDT THU MAR 15 2012
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR MONROE COUNTY UNTIL
MIDNIGHT EDT...
AT 1050 PM EDT...RAIN HAS ENDED OVER ALL BUT FAR SOUTHERN MONROE
COUNTY AND HAS BEEN DIMINISHING IN COVERAGE SINCE 1000 PM. THIS WILL
ALLOW FLASH FLOOD PRODUCING RUNOFF TO PROGRESS AND WATER TO
GRADUALLY RECEDE. HOWEVER...FLASH FLOODING REMAINS A CONCERN OVER
THE ENTIRE AREA.
SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
CARLETON...DUNDEE...MONROE...TEMPERANCE...IDA...LAMBERTVILLE...LUNA
PIER...MAYBEE...OTTAWA LAKE AND PETERSBURG.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE MINOR FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE
WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW
YOUR CAR TO CROSS SAFELY.
&&
LAT...LON 4208 8377 4209 8329 4203 8318 4198 8320
4196 8325 4192 8326 4192 8330 4193 8331
4188 8333 4186 8338 4180 8341 4179 8344
4175 8342 4173 8344 4172 8376
$$
BT627
WGUS73 KDTX 160401
FFSDTX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1201 AM EDT FRI MAR 16 2012
MIC115-160412-
/O.EXP.KDTX.FF.W.0003.000000T0000Z-120316T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONROE MI-
1201 AM EDT FRI MAR 16 2012
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR MONROE COUNTY
EXPIRED AT MIDNIGHT...
AS OF MIDNIGHT...RAIN HAD ENDED OVER MONROE COUNTY. IN ADDITION...
THERE HAVE ONLY BEEN A FEW THUNDERSTORMS NEAR THE OHIO BORDER SINCE
1000 PM. THIS HAS ALLOWED FLASH FLOOD PRODUCING RUNOFF TO EASE.
HOWEVER...MOTORISTS SHOULD BE ALERT FOR STANDING WATER ON AND NEAR
AREA ROADS DURING THE REST OF THE NIGHT.
LAT...LON 4208 8377 4209 8329 4203 8318 4198 8320
4196 8325 4192 8326 4192 8330 4193 8331
4188 8333 4186 8338 4180 8341 4179 8344
4175 8342 4173 8344 4172 8376
$$
BTThe office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 15, 8:09 PM EDT | Special Marine Warning | DTX | 2 hr | |
| Mar 15, 8:10 PM EDT | Severe Thunderstorm Warning | DTX | Tuscola | 61 min |
| Mar 15, 8:16 PM EDT | Severe Thunderstorm Warning | DTX | Midland | 30 min |
| Mar 15, 8:34 PM EDT | Severe Thunderstorm Warning | DTX | Bay | 56 min |
| Mar 15, 8:37 PM EDT | Special Marine Warning | DTX | 73 min | |
| Mar 15, 8:43 PM EDT | Special Marine Warning | DTX | 69 min | |
| Mar 15, 9:11 PM EDT | Severe Thunderstorm Warning | DTX | Lenawee, Monroe | 64 min |
| Mar 16, 7:16 AM EDT | Dense Fog Advisory | DTX | Genesee, Lapeer, Livingston, Oakland, Shiawassee | 5 hr |
Nearby
Flash Flood Warnings in Michigan, 2012Every flash flood warning in 2012
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; radar from the NEXRAD Level II archive.