Alert archive / Ohio / Flash Flood Warnings in 2012
Flash Flood Warning 6, NWS Wilmington, OH
NWS Wilmington, OH issued this flash flood warning at May 1, 2012, 6:33 PM EDT for Hamilton County, Ohio. It was in force for 3 hr. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 1, 2012, 6:33 PM EDT (22:33 UTC)
- Expired
- May 1, 2012, 9:24 PM EDT
- In force
- 3 hr
- Issued by
- NWS Wilmington, OH
- Area
- Storm-based polygon
- Flood severity
- None
County Hamilton County, OH
The radar
The Cincinnati radar (KILN), 63 km from the middle of the area, began a volume at 22:34 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 1, 7:00 PM EDT | FLASH FLOOD | 3 S Harrison, OH | HIGH WATER FLOWING OVER LAWRENCEBURG ROAD IN MIAMI TOWNSHIP. |
| May 1, 7:00 PM EDT | FLASH FLOOD | 5 Ne Cleves, OH | ALMOST A FOOT OF FLOWING WATER OVER THE ROAD NEAR THE INTERSECTION OF HARRISON AVENUE AND WESSELMAN ROAD. ROAD ALSO CLOSED AT THE SAME TIME NEAR HARRISON AND RYBOLT ROAD TO TO HIGH WATER. BOTH INTERSECTIONS CLOSED BY COUNTY ENGINEER OFFICE. |
| May 1, 7:30 PM EDT | FLASH FLOOD | 3 Ene Harrison, OH | ABOUT 1 FOOT OF WATER FLOWING OVER MOUNT HOPE ROAD IN CROSBY TOWNSHIP. ROAD CLOSED BY COUNTY ENGINEERS OFFICE. |
| May 1, 8:25 PM EDT | FLOOD | Sharonville, OH | FLOODING OF ROADS AND PROPERTY AFTER 2.06 INCHES OF RAIN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.6 hours before the alert went out and 65 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
- 15 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 516 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
900
WGUS51 KILN 012233
FFWILN
OHC061-020230-
/O.NEW.KILN.FF.W.0006.120501T2233Z-120502T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
633 PM EDT TUE MAY 1 2012
THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
HAMILTON COUNTY IN SOUTHWEST OHIO...
* UNTIL 1030 PM EDT.
* AT 629 PM EDT...LOCAL LAW ENFORCEMENT REPORTED THAT EXCESSIVE
RAINFALL WAS PRODUCING FLASH FLOODING IN HAMILTON COUNTY. FLOODING
HAS BEEN REPORTED COUNTYWIDE.
* RADAR INDICATED ADDITIONAL RAIN WILL FALL ACROSS THE WARNED AREA
WITH ANOTHER INCH POSSIBLE THROUGH 1030 PM EDT. RUNOFF FROM THIS
EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO CONTINUE TO OCCUR.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...BLUE ASH...
CHEVIOT...CINCINNATI...DEER PARK...FINNEYTOWN...FOREST PARK...
HARRISON...MADEIRA...MONTGOMERY...MOUNT HEALTHY...NORTH COLLEGE HILL
AND NORWOOD.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ACT QUICKLY TO PROTECT YOUR LIFE IF YOU ARE IN A LOW LYING AREA...
ALONG A CREEK...STREAM OR IN AN AREA EXPERIENCING FLOODING. MOVE TO
HIGHER GROUND IMMEDIATELY.
NEVER DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. ONLY A FEW INCHES
OF RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE. FIND AN
ALTERNATE ROUTE OR WAIT UNTIL THE WATER RECEDES.
&&
LAT...LON 3929 8427 3925 8428 3922 8432 3921 8431
3921 8428 3910 8431 3911 8444 3912 8445
3911 8449 3912 8471 3915 8474 3913 8478
3913 8481 3931 8482
$$2 follow-up statements
495
WGUS71 KILN 020016
FFSILN
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
816 PM EDT TUE MAY 1 2012
OHC061-020230-
/O.CON.KILN.FF.W.0006.000000T0000Z-120502T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HAMILTON OH-
816 PM EDT TUE MAY 1 2012
...FLASH FLOOD WARNING CONTINUES FOR HAMILTON COUNTY UNTIL 1030 PM
EDT...
AT 811 PM EDT...RADAR INDICATED THAT THUNDERSTORMS THAT HAD PRODUCED
HEAVY RAINFALL OVER HAMILTON COUNTY HAVE MOVED EAST OF THE AREA.
ADDITIONAL RAINFALL OVER INDIANA WILL MOVE INTO HAMILTON COUNTY THIS
EVENING AND MAY LEAD TO ADDITIONAL FLOODING ACROSS THE AREA.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...BLUE ASH...
CHEVIOT...CINCINNATI...DEER PARK...FINNEYTOWN...FOREST PARK...
HARRISON...MADEIRA...MONTGOMERY...MOUNT HEALTHY...NORTH COLLEGE HILL
AND NORWOOD.
IN ADDITION...FLOODING IS EXPECTED TO OCCUR IN...ADDYSTON...
AMBERLEY...ARLINGTON HEIGHTS...BRIDGETOWN NORTH...COVEDALE...DENT...
DILLONVALE AND DRY RUN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ACT QUICKLY TO PROTECT YOUR LIFE IF YOU ARE IN A LOW LYING AREA...
ALONG A CREEK...STREAM OR IN AN AREA EXPERIENCING FLOODING. MOVE TO
HIGHER GROUND IMMEDIATELY.
NEVER DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. ONLY A FEW INCHES
OF RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE. FIND AN
ALTERNATE ROUTE OR WAIT UNTIL THE WATER RECEDES.
&&
LAT...LON 3929 8427 3925 8428 3922 8432 3921 8431
3921 8428 3910 8431 3911 8444 3912 8445
3911 8449 3912 8471 3915 8474 3913 8478
3913 8481 3931 8482
$$625
WGUS71 KILN 020124
FFSILN
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
924 PM EDT TUE MAY 1 2012
OHC061-020132-
/O.CAN.KILN.FF.W.0006.000000T0000Z-120502T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HAMILTON OH-
924 PM EDT TUE MAY 1 2012
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR HAMILTON COUNTY HAS
BEEN CANCELLED...
STREAMS AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING
TO RECEDE...ENDING THE FLASH FLOOD THREAT. HIGH WATER WILL STILL BE
POSSIBLE ON AREA ROADWAYS. IF FLOODING HAS BEEN OBSERVED...PLEASE
REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.
LAT...LON 3929 8427 3925 8428 3922 8432 3921 8431
3921 8428 3910 8431 3911 8444 3912 8445
3911 8449 3912 8471 3915 8474 3913 8478
3913 8481 3931 8482
$$The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 8:42 PM EDT | Areal Flood Advisory | ILN | Butler, Hamilton, Montgomery, Warren | 2 hr |
| Apr 30, 8:59 PM EDT | Special Weather Statement | ILN | Adams, Brown, Clermont, Highland | 61 min |
| Apr 30, 9:16 PM EDT | Severe Thunderstorm Warning | ILN | Clermont | 21 min |
| Apr 30, 9:36 PM EDT | Areal Flood Advisory | ILN | Greene, Montgomery, Warren | 114 min |
| Apr 30, 10:21 PM EDT | Special Weather Statement | ILN | Pickaway | 39 min |
| May 1, 4:30 PM EDT | Severe Thunderstorm Warning | ILN | Butler, Hamilton | 45 min |
| May 1, 4:42 PM EDT | Severe Thunderstorm Warning | ILN | Darke, Preble | 48 min |
| May 1, 4:59 PM EDT | Severe Thunderstorm Warning | ILN | Butler | 46 min |
| May 1, 5:08 PM EDT | Severe Thunderstorm Warning | ILN | Hamilton | 52 min |
| May 1, 5:20 PM EDT | Severe Thunderstorm Warning | ILN | Hamilton | 40 min |
| May 1, 5:24 PM EDT | Severe Thunderstorm Warning | ILN | Darke, Miami, Montgomery, Preble | 51 min |
| May 1, 5:30 PM EDT | Tornado Warning | ILN | Butler | 26 min |
| May 1, 5:45 PM EDT | Severe Thunderstorm Warning | ILN | Brown, Highland | 45 min |
| May 1, 5:47 PM EDT | Tornado Warning | ILN | Butler | 28 min |
| May 1, 5:52 PM EDT | Severe Thunderstorm Warning | ILN | Clermont, Hamilton, Warren | 38 min |
| May 1, 5:59 PM EDT | Severe Thunderstorm Warning | ILN | Hamilton | 15 min |
| May 1, 6:05 PM EDT | Severe Thunderstorm Warning | ILN | Clinton, Greene | 40 min |
| May 1, 6:12 PM EDT | Areal Flood Advisory | ILN | Butler, Hamilton, Warren | 4 hr |
| May 1, 6:12 PM EDT | Tornado Warning | ILN | Butler, Warren | 33 min |
| May 1, 6:18 PM EDT | Severe Thunderstorm Warning | ILN | Highland, Pike, Ross | 42 min |
| May 1, 6:34 PM EDT | Tornado Warning | ILN | Clinton, Warren | 26 min |
| May 1, 6:39 PM EDT | Severe Thunderstorm Warning | ILN | Clark, Madison | 41 min |
| May 1, 6:41 PM EDT | Severe Thunderstorm Warning | ILN | Ross | 49 min |
| May 1, 6:49 PM EDT | Special Weather Statement | ILN | Adams, Brown | 56 min |
| May 1, 6:52 PM EDT | Severe Thunderstorm Warning | ILN | Fairfield, Pickaway | 38 min |
| May 1, 6:59 PM EDT | Special Weather Statement | ILN | Pike | 61 min |
| May 1, 7:03 PM EDT | Severe Thunderstorm Warning | ILN | Adams, Brown, Highland | 42 min |
| May 1, 7:09 PM EDT | Severe Thunderstorm Warning | ILN | Pike, Ross | 51 min |
| May 1, 7:24 PM EDT | Special Weather Statement | ILN | Clermont, Hamilton | 51 min |
| May 1, 7:31 PM EDT | Severe Thunderstorm Warning | ILN | Adams, Pike, Scioto | 44 min |
| May 1, 7:54 PM EDT | Severe Thunderstorm Warning | ILN | Scioto | 21 min |
Nearby
Flash Flood Warnings in Ohio, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.