Alert archive / Ohio / Flash Flood Warnings in 2011

Flash Flood Warning 8, NWS Cleveland, OH

May 13, 2011Ashtabula County, Geauga County, Trumbull County, Ohio

NWS Cleveland, OH issued this flash flood warning at May 13, 2011, 2:56 PM EDT for Ashtabula County, Geauga County, Trumbull County, Ohio. It was in force for 3 hr. 1 report 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 13, 2011, 2:56 PM EDT (18:56 UTC)
Expired
May 13, 2011, 6:00 PM EDT
In force
3 hr
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Flood severity
None

Counties Ashtabula County, OH, Geauga County, OH, Trumbull County, OH

The radar

The Cleveland radar (KCLE), 81 km from the middle of the area, began a volume at 18:58 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

TimeReportWhereRemark
May 13, 5:30 PM EDTFLASH FLOODMiddlefield, OHSWINE CREEK CAME OUT OF BANKS AND FLOODED ALL THE WAY ACROSS ST RT 528 AND KINSMAN ROAD. ROADS CLOSED. WATER DEPTH OVER A FOOT IN SPOTS.

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 12:00Z, 6.9 hours before the alert went out and 148 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, Pittsburgh, PA at 12:00Z on 2011-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 205 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, Pittsburgh, PA at 12:00Z on 2011-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 68 square meters per square second.193958Sfc1 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
205 J/kg
Mixed-layer CIN
-131 J/kg
Mixed-layer LCL
1018 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
68 m²/s²
0-3 km storm-relative helicity
67 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.

755 
WGUS51 KCLE 131856
FFWCLE
OHC007-055-155-132200-
/O.NEW.KCLE.FF.W.0008.110513T1856Z-110513T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
256 PM EDT FRI MAY 13 2011

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN GEAUGA COUNTY IN NORTHEAST OHIO
  NORTHERN TRUMBULL COUNTY IN NORTHEAST OHIO
  SOUTHWESTERN ASHTABULA COUNTY IN NORTHEAST OHIO

* UNTIL 600 PM EDT

* AT 249 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
  WARNED AREA. TORRENTIAL RAINFALL WAS OBSERVED WITH RATES GREATER 
  THAN AN INCH PER HOUR. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BRISTOLVILLE...KINSMAN...MIDDLEFIELD...NORTH BLOOMFIELD...ORWELL
  AND WEST FARMINGTON.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

VERY HEAVY RAINFALL IS POSSIBLE IN THE WARNED AREA. EXCESSIVE RUNOFF
WILL CAUSE FLOODING OF SMALL CREEKS...STREAMS...AND DRAINAGE DITCHES
ACROSS THE WARNING AREA. IN URBAN AREAS...FLOODING IS LIKELY ALONG
POORLY DRAINED AND LOW LYING HIGHWAYS...STREETS...AND UNDERPASSES. BE
ALERT FOR FLOODED ROADS. TURN AROUND...DON'T DROWN!

&&

LAT...LON 4178 8082 4134 8052 4135 8112 4145 8111
      4167 8104 4174 8100

$$

JAMISON
3 follow-up statements
045 
WGUS71 KCLE 132018
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
418 PM EDT FRI MAY 13 2011

OHC007-055-155-132200-
/O.CON.KCLE.FF.W.0008.000000T0000Z-110513T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TRUMBULL OH-GEAUGA OH-ASHTABULA OH-
418 PM EDT FRI MAY 13 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
ASHTABULA...EASTERN GEAUGA AND NORTHERN TRUMBULL COUNTIES UNTIL 600
PM EDT...

AT 412 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT MOST OF THE STORM ACTIVITY ACROSS THE REGION HAS WEAKENED. 
HOWEVER RUNOFF FROM EARLIER STORMS WILL CONTINUE ACROSS THE WARNED 
AREA. RAINFALL ESTIMATES AND OBSERVATIONS SHOW AROUND 1 TO 3 
INCHES...WITH THE HIGHEST AMOUNTS NEAR THE MIDDLEFIELD AREA. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING 
INCLUDE...BRISTOLVILLE...KINSMAN...MIDDLEFIELD...NORTH 
BLOOMFIELD...ORWELL AND WEST FARMINGTON.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE
ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON
FOOT OR IN A VEHICLE. TURN AROUND...DON'T DROWN!

&&

LAT...LON 4178 8082 4134 8052 4135 8112 4145 8111
      4167 8104 4174 8100

$$

SJ
399 
WGUS71 KCLE 132104
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
504 PM EDT FRI MAY 13 2011

OHC007-055-155-132200-
/O.CON.KCLE.FF.W.0008.000000T0000Z-110513T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TRUMBULL OH-GEAUGA OH-ASHTABULA OH-
504 PM EDT FRI MAY 13 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
ASHTABULA...EASTERN GEAUGA AND NORTHERN TRUMBULL COUNTIES UNTIL 600
PM EDT...

AT 458 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
ADDITIONAL THUNDERSTORMS WITH HEAVY RAINFALL ACROSS THE WARNED AREA.
DOPPLER RADAR ESTIMATED AROUND A HALF INCH PER HOUR WITH THESE STORMS.
THIS ADDITIONAL RAINFALL COULD CONTRIBUTE TO THE RUNOFF FROM EARLIER 
STORMS TO KEEP A FLOOD THREAT GOING.  SOME LOCATIONS THAT WILL
EXPERIENCE FLOODING INCLUDE...BRISTOLVILLE...KINSMAN...MIDDLEFIELD...
NORTH BLOOMFIELD...ORWELL AND WEST FARMINGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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. TURN AROUND...DON'T DROWN!

&&

LAT...LON 4178 8082 4134 8052 4135 8112 4145 8111
      4167 8104 4174 8100

$$

SJ
763 
WGUS71 KCLE 132106
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
506 PM EDT FRI MAY 13 2011

OHC007-055-155-132200-
/O.CON.KCLE.FF.W.0008.000000T0000Z-110513T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TRUMBULL OH-GEAUGA OH-ASHTABULA OH-
506 PM EDT FRI MAY 13 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
ASHTABULA...EASTERN GEAUGA AND NORTHERN TRUMBULL COUNTIES UNTIL 600
PM EDT...

AT 503 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
ADDITIONAL THUNDERSTORMS WITH HEAVY RAINFALL APPROACHING THE WARNED AREA.
DOPPLER RADAR ESTIMATED RAINFALL RATES AROUND A HALF INCH PER HOUR WITH 
THESE STORMS. THIS RAINFALL WILL CONTRIBUTE TO THE FLOODING ISSUES AND ADD 
ADDITIONAL RUNOFF TO THE AREA. SOME LOCATIONS THAT COULD EXPERIENCE FLOODING
INCLUDE...BRISTOLVILLE...KINSMAN...MIDDLEFIELD...NORTH BLOOMFIELD...
ORWELL AND WEST FARMINGTON.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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. TURN AROUND...DON'T DROWN!

&&

LAT...LON 4178 8082 4134 8052 4135 8112 4145 8111
      4167 8104 4174 8100

$$

SJ

The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 9:03 PM EDTSevere Thunderstorm WarningCLEMarion42 min
May 13, 9:27 AM EDTFlood WatchCLEAshland, Ashtabula, Cuyahoga, Erie, Geauga, Holmes and 12 more14 hr
May 13, 12:52 PM EDTFlash Flood WarningCLECuyahoga, Geauga, Lake5 hr
May 13, 2:16 PM EDTSevere Thunderstorm WarningCLEMahoning44 min
May 13, 2:23 PM EDTAreal Flood AdvisoryCLEAshtabula, Geauga, Lake, Mahoning, Portage, Stark and 1 more5 hr
May 13, 2:34 PM EDTSevere Thunderstorm WarningCLEAshtabula, Geauga, Trumbull41 min
May 13, 3:38 PM EDTAreal Flood AdvisoryCLEAshland, Richland112 min
May 13, 4:13 PM EDTSevere Thunderstorm WarningCLEPortage62 min
May 13, 4:40 PM EDTAreal Flood WarningCLEMedina, Portage, Stark, Summit, Wayne4 hr
May 13, 4:46 PM EDTSevere Thunderstorm WarningCLEMedina, Summit, Wayne28 min
May 13, 5:58 PM EDTAreal Flood WarningCLEAshtabula, Geauga, Trumbull5 hr
May 13, 6:06 PM EDTRiver Flood WarningCLELake5 hr
May 13, 7:26 PM EDTRiver Flood WarningCLEStark4 hr

Nearby

Flash Flood Warnings in Ohio, 2011Every flash flood warning in 2011

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.