Alert archive / Ohio / Flood Watches in 2012

Flood Watch 3, NWS Cleveland, OH

September 2, 20129 counties in Ohio

NWS Cleveland, OH issued this flood watch at Sep 2, 2012, 6:03 AM EDT for 9 counties in Ohio. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Sep 2, 2012, 6:03 AM EDT (10:03 UTC)
Expired
Sep 2, 2012, 12:01 PM EDT
In force
6 hr
Issued by
NWS Cleveland, OH
Flood severity
None

Counties Ashland County, OH, Crawford County, OH, Hancock County, OH, Holmes County, OH, Knox County, OH, Marion County, OH, Morrow County, OH, Richland County, OH, Wyandot County, OH

The radar

The Cleveland radar (KCLE), 110 km from the middle of the area, began a volume at 10:06 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 10.1 hours before the alert went out and 167 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, Cncnati-Daytn, OH at 00:00Z on 2012-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 478 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 2012-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 square meters per square second.1939Sfc1 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
478 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
1245 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
51 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.

568 
WGUS61 KCLE 021003
FFACLE

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE CLEVELAND OH
603 AM EDT SUN SEP 2 2012

...HEAVY RAIN POSSIBLE AGAIN THIS AFTERNOON AND EVENING...

.A PERSISTANT BAND OF SHOWERS AND THUNDERSTORMS OVERNIGHT BROUGHT
HEAVY RAIN TO THE AREA. A WIDESPREAD 1 TO 2 INCHES OF RAIN FELL
WITH LOCALIZED AMOUNTS AROUND 4 INCHES. A VERY MOIST AIRMASS
ASSOCIATED WITH THE REMNANTS OF ISAAC WILL REMAIN OVER THE REGION
THROUGH TUESDAY. ADDITIONAL SHOWERS AND THUNDERSTORMS ARE
EXPECTED TO DEVELOP THIS AFTERNOON AND MAY QUICKLY LEAD TO
FLOODING IN AREAS THAT ALREADY RECEIVED HEAVY RAIN OVERNIGHT.

OHZ017-027>030-036>038-047-021815-
/O.NEW.KCLE.FA.A.0003.120902T1003Z-120903T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HANCOCK-WYANDOT-CRAWFORD-RICHLAND-ASHLAND-MARION-MORROW-HOLMES-
KNOX-
INCLUDING THE CITIES OF...FINDLAY...UPPER SANDUSKY...CAREY...
BUCYRUS...MANSFIELD...ASHLAND...MARION...MOUNT GILEAD...
MILLERSBURG...MOUNT VERNON
603 AM EDT SUN SEP 2 2012

...FLOOD WATCH IN EFFECT THROUGH THIS EVENING...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* FLOOD WATCH FOR PORTIONS OF NORTH CENTRAL OHIO...INCLUDING THE
  FOLLOWING AREAS...ASHLAND...CRAWFORD...KNOX...MARION...
  MORROW...RICHLAND...HOLMES...HANCOCK AND WYANDOT.

* THROUGH THIS EVENING

* SHOWERS AND THUNDERSTORMS WILL PRODUCE LOCALLY HEAVY RAIN THIS
  AFTERNOON AND EVENING. AREAS THAT ALREADY RECEIVED HEAVY RAIN
  OVERNIGHT MAY QUICKLY SEE FLOODING PROBLEMS DEVELOP.

* RUNOFF FROM INTENSE THUNDERSTORMS WILL QUICKLY FILL LOW LYING
  AND POOR DRAINAGE AREAS. CREEKS AND RIVERS WILL LIKELY SEE RISES
  AND COULD FLOW FROM THEIR BANKS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE
ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO
FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING
DEVELOP. STAY TUNED TO WEATHER RADIO FOR FURTHER DETAILS OR
UPDATES

&&

$$
2 follow-up statements
332 
WGUS61 KCLE 021414
FFACLE

FLOOD WATCH
NATIONAL WEATHER SERVICE CLEVELAND OH
1014 AM EDT SUN SEP 2 2012

...HEAVY RAIN POSSIBLE AGAIN THIS AFTERNOON AND EVENING...

.A VERY MOIST AIRMASS ASSOCIATED WITH THE REMNANTS OF ISAAC WILL
REMAIN OVER THE REGION THROUGH TUESDAY. ADDITIONAL SHOWERS AND
THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON AND MAY
QUICKLY LEAD TO FLOODING IN AREAS THAT ALREADY RECEIVED HEAVY RAIN
LAST NIGHT.

OHZ017-027>030-036>038-047-022200-
/O.CON.KCLE.FA.A.0003.000000T0000Z-120903T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HANCOCK-WYANDOT-CRAWFORD-RICHLAND-ASHLAND-MARION-MORROW-HOLMES-
KNOX-
INCLUDING THE CITIES OF...FINDLAY...UPPER SANDUSKY...CAREY...
BUCYRUS...MANSFIELD...ASHLAND...MARION...MOUNT GILEAD...
MILLERSBURG...MOUNT VERNON
1014 AM EDT SUN SEP 2 2012

...FLOOD WATCH REMAINS IN EFFECT UNTIL 10 PM EDT THIS EVENING...

THE FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTH CENTRAL OHIO...NORTHEAST OHIO AND NORTHWEST 
  OHIO...INCLUDING THE FOLLOWING AREAS...IN NORTH CENTRAL OHIO...
   ASHLAND...CRAWFORD...KNOX...MARION...MORROW AND RICHLAND. IN 
  NORTHEAST OHIO...HOLMES. IN NORTHWEST OHIO...HANCOCK AND 
  WYANDOT. 

* UNTIL 10 PM EDT THIS EVENING

* ANY ADDITIONAL SHOWERS AND THUNDERSTORMS THAT DEVELOP LATE THIS
  AFTERNOON AND EVENING WILL PRODUCE LOCALLY HEAVY RAIN. THIS WILL
  BE A CONCERN FOR AREAS THAT RECEIVED HEAVY RAIN LAST NIGHT IN
  THE WATCH AREA. ADDITIONAL RAINFALL MAY LEAD TO FLOODING
  PROBLEMS.

* RUNOFF FROM INTENSE THUNDERSTORMS WILL QUICKLY FILL LOW LYING 
  AND POOR DRAINAGE AREAS. CREEKS AND RIVERS WILL LIKELY SEE 
  RISES AND COULD FLOW FROM THEIR BANKS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE
ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO
FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING
DEVELOP. STAY TUNED TO WEATHER RADIO FOR FURTHER DETAILS OR
UPDATES

&&

$$

OUDEMAN
345 
WGUS61 KCLE 021601
FFACLE

FLOOD WATCH
NATIONAL WEATHER SERVICE CLEVELAND OH
1201 PM EDT SUN SEP 2 2012

OHZ017-027>030-036>038-047-021715-
/O.CAN.KCLE.FA.A.0003.000000T0000Z-120903T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HANCOCK-WYANDOT-CRAWFORD-RICHLAND-ASHLAND-MARION-MORROW-HOLMES-
KNOX-
INCLUDING THE CITIES OF...FINDLAY...UPPER SANDUSKY...CAREY...
BUCYRUS...MANSFIELD...ASHLAND...MARION...MOUNT GILEAD...
MILLERSBURG...MOUNT VERNON
1201 PM EDT SUN SEP 2 2012

...FLOOD WATCH IS CANCELLED...

THE FLOOD WATCH FOR PORTIONS OF NORTH CENTRAL OHIO...NORTHEAST
OHIO AND NORTHWEST OHIO HAS BEEN CANCELLED.

WHILE ADDITIONAL SCATTERED SHOWERS AND THUNDERSTORMS MAY DEVELOP
LATER THIS AFTERNOON AND EVENING...WIDESPREAD FLOODING IS NOT
EXPECTED. RAINFALL IN THUNDERSTORMS WILL STILL HAVE THE POTENTIAL
TO BE LOCALLY HEAVY.

$$

OUDEMAN

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 1, 8:46 PM EDTAreal Flood WarningCLEAshland, Holmes, Knox, Marion, Morrow, Richland4 hr

Nearby

Flood Watches in Ohio, 2012Every flood watch 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.