Alert archive / Ohio / Flash Flood Warnings in 2012
Flash Flood Warning 9, NWS Wilmington, OH
NWS Wilmington, OH issued this flash flood warning at May 2, 2012, 12:12 AM EDT for 5 counties in Ohio. It was in force for 4 hr. 3 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 2, 2012, 12:12 AM EDT (04:12 UTC)
- Expired
- May 2, 2012, 4:15 AM EDT
- In force
- 4 hr
- Issued by
- NWS Wilmington, OH
- Area
- Storm-based polygon
- Flood severity
- None
Counties Brown County, OH, Clermont County, OH, Clinton County, OH, Highland County, OH, Warren County, OH
The radar
The Cincinnati radar (KILN), 28 km from the middle of the area, began a volume at 04:12 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 2, 12:30 AM EDT | FLASH FLOOD | 3 Nw Hillsboro, OH | NEARLY 1 FOOT OF WATER FLOWING OVER POWELL ROAD. |
| May 2, 12:37 AM EDT | FLASH FLOOD | 1 Se Goshen, OH | WOMAN TRAPPED IN CAR IN FLOOD WATERS. |
| May 2, 1:00 AM EDT | FLASH FLOOD | Hillsboro, OH | VERY HIGH WATER ON ROUTE 62 NORTH OF HILLSBORO...WITH HIGH WATER ALSO REPORTED ON HIGHWAY 50 WEST OF TOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 00:00Z, 4.2 hours before the alert went out and 363 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1907 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
143
WGUS51 KILN 020412
FFWILN
OHC015-025-027-071-165-020815-
/O.NEW.KILN.FF.W.0009.120502T0412Z-120502T0815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
1212 AM EDT WED MAY 2 2012
THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHERN BROWN COUNTY IN SOUTHWEST OHIO...
NORTHERN CLERMONT COUNTY IN SOUTHWEST OHIO...
SOUTHERN CLINTON COUNTY IN SOUTHWEST OHIO...
WESTERN HIGHLAND COUNTY IN SOUTHWEST OHIO...
SOUTHERN WARREN COUNTY IN SOUTHWEST OHIO...
* UNTIL 415 AM EDT.
* AT 1206 AM EDT...RADAR INDICATED THAT THUNDERSTORMS HAD PRODUCED
HEAVY RAINFALL ACROSS THE WARNED AREA. RADAR ESTIMATED 1 TO 2
INCHES OF RAIN IN THE PAST HOUR. THE STORM TOTAL IN THIS AREA IS 2
TO 4 INCHES.
* HEAVY RAIN CONTINUES TO TRAIN ACROSS ACROSS THE WARNED AREA WITH
ANOTHER 1 TO 2 INCHES POSSIBLE THROUGH 415 AM EDT. RUNOFF FROM
THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...BLANCHESTER...
FAYETTEVILLE...HILLSBORO...MASON...MILFORD...ST. MARTIN...
LYNCHBURG...MORROW AND NEW VIENNA.
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.
FLOOD DANGERS ARE HARDER TO RECOGNIZE AT NIGHT. BE ESPECIALLY
CAUTIOUS.
&&
LAT...LON 3915 8430 3921 8428 3921 8431 3922 8432
3927 8426 3929 8427 3929 8435 3943 8434
3942 8359 3938 8359 3938 8355 3909 8364
$$2 follow-up statements
590
WGUS71 KILN 020606
FFSILN
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
206 AM EDT WED MAY 2 2012
OHC015-025-027-071-165-020815-
/O.CON.KILN.FF.W.0009.000000T0000Z-120502T0815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BROWN OH-CLINTON OH-WARREN OH-CLERMONT OH-HIGHLAND OH-
206 AM EDT WED MAY 2 2012
...FLASH FLOOD WARNING CONTINUES FOR WESTERN HIGHLAND...NORTHERN
CLERMONT...SOUTHERN WARREN...SOUTHERN CLINTON AND NORTHERN BROWN
COUNTIES UNTIL 415 AM EDT...
AT 205 AM EDT...THE THUNDERSTORMS HAVE PUSHED OFF TO THE EAST AND
HEAVY RAINFALL HAS ENDED ACROSS THE AREA. HOWEVER...RUNOFF FROM THE
EARLIER EXCESSIVE RAIN WILL CONTINUE THE FLASH FLOOD THREAT
ESPECIALLY SWOLLEN CREEKS AND STREAMS NEAR ROADWAYS.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...BLANCHESTER...
FAYETTEVILLE...HILLSBORO...LEBANON...MASON...MILFORD...ST. MARTIN...
LYNCHBURG...MORROW AND NEW VIENNA.
IN ADDITION...FLOODING IS EXPECTED TO OCCUR IN...BURTONVILLE...
BUTLERVILLE...CHASETOWN...CLARKSVILLE...CUBA...DALLASBURG...DAY
HEIGHTS AND EDENTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ACT QUICKLY TO PROTECT YOUR LIFE IF YOU ARE IN A LOW LYING AREA...
ALONG A CREEK...STREAM OR IN AN AREA EXPERIENCING FLOODING. MOVE TO
HIGHER GROUND IMMEDIATELY.
NEVER DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. ONLY A FEW INCHES
OF RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE. FIND AN
ALTERNATE ROUTE OR WAIT UNTIL THE WATER RECEDES.
FLOOD DANGERS ARE HARDER TO RECOGNIZE AT NIGHT. BE ESPECIALLY
CAUTIOUS.
&&
LAT...LON 3915 8430 3921 8428 3921 8431 3922 8432
3927 8426 3929 8427 3929 8435 3943 8434
3942 8359 3938 8359 3938 8355 3909 8364
$$904
WGUS71 KILN 020809
FFSILN
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
409 AM EDT WED MAY 2 2012
OHC015-025-027-071-165-020819-
/O.EXP.KILN.FF.W.0009.000000T0000Z-120502T0815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BROWN OH-CLINTON OH-WARREN OH-CLERMONT OH-HIGHLAND OH-
409 AM EDT WED MAY 2 2012
...THE FLASH FLOOD WARNING FOR WESTERN HIGHLAND...NORTHERN
CLERMONT...SOUTHERN WARREN...SOUTHERN CLINTON AND NORTHERN BROWN
COUNTIES WILL EXPIRE AT 415 AM EDT...
STREAMS AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING
TO RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.
LAT...LON 3915 8430 3921 8428 3921 8431 3922 8432
3927 8426 3929 8427 3929 8435 3943 8434
3942 8359 3938 8359 3938 8355 3909 8364
$$The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 8:05 PM EDT | Special Weather Statement | ILN | Highland | 40 min |
| May 1, 9:00 PM EDT | Special Weather Statement | ILN | Preble | 60 min |
| May 1, 9:06 PM EDT | Areal Flood Advisory | ILN | Preble | 4 hr |
| May 1, 9:31 PM EDT | Flash Flood Warning | ILN | Butler, Montgomery, Preble | 3 hr |
| May 1, 9:59 PM EDT | Special Weather Statement | ILN | Clinton, Greene | 31 min |
| May 1, 10:00 PM EDT | Areal Flood Warning | ILN | Hamilton | 3 hr |
| May 1, 10:01 PM EDT | Special Weather Statement | ILN | Butler | 29 min |
| May 1, 10:21 PM EDT | Special Weather Statement | ILN | Clinton, Fayette | 39 min |
| May 1, 10:28 PM EDT | Flash Flood Warning | ILN | Butler, Hamilton | 4 hr |
| May 1, 10:30 PM EDT | Areal Flood Advisory | ILN | Clinton, Greene, Warren | 3 hr |
| May 1, 11:26 PM EDT | Special Weather Statement | ILN | Clinton | 34 min |
| May 1, 11:29 PM EDT | Severe Thunderstorm Warning | ILN | Brown, Clermont, Clinton, Highland, Warren | 31 min |
| May 1, 11:36 PM EDT | Areal Flood Advisory | ILN | Brown, Clermont, Highland | 3 hr |
| May 1, 11:44 PM EDT | Special Weather Statement | ILN | Butler | 61 min |
| May 2, 12:08 AM EDT | Special Weather Statement | ILN | Warren | 37 min |
| May 2, 12:17 AM EDT | Special Weather Statement | ILN | Pike | 28 min |
| May 2, 12:19 AM EDT | Areal Flood Advisory | ILN | Auglaize, Mercer | 3 hr |
| May 2, 12:40 AM EDT | Special Weather Statement | ILN | Clermont | 35 min |
| May 2, 12:53 AM EDT | Areal Flood Advisory | ILN | Pike, Ross | 3 hr |
| May 2, 12:57 AM EDT | Special Weather Statement | ILN | Pike, Ross | 33 min |
| May 2, 1:12 AM EDT | Special Weather Statement | ILN | Greene | 33 min |
| May 2, 1:23 AM EDT | Areal Flood Advisory | ILN | Auglaize, Hardin, Logan, Shelby, Union | 3 hr |
| May 2, 1:24 AM EDT | Special Weather Statement | ILN | Pike, Scioto | 21 min |
| May 2, 2:25 AM EDT | Areal Flood Warning | ILN | Hamilton | 9 hr |
| May 2, 2:38 AM EDT | River Flood Warning | ILN | Clermont, Hamilton | 9 hr |
| May 2, 2:38 AM EDT | River Flood Warning | ILN | Clermont, Hamilton, Warren | 11 hr |
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.