Alert archive / Ohio / Flash Flood Warnings in 2011

Flash Flood Warning 13, NWS Cleveland, OH

May 14, 2011Ashland County, Medina County, Richland County, Ohio

NWS Cleveland, OH issued this flash flood warning at May 14, 2011, 3:49 PM EDT for Ashland County, Medina County, Richland County, Ohio. It was in force for 4 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 14, 2011, 3:49 PM EDT (19:49 UTC)
Expired
May 14, 2011, 8:00 PM EDT
In force
4 hr
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Flood severity
None

Counties Ashland County, OH, Medina County, OH, Richland County, OH

The radar

The Cleveland radar (KCLE), 63 km from the middle of the area, began a volume at 19:49 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 14, 6:00 PM EDTFLASH FLOODAshland, OHMANY ROADS...INCLUDING STATE ROADS HAD TO BE CLOSED BECAUSE OF HIGH WATER.

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, 7.8 hours before the alert went out and 190 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 2011-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 108 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 2011-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 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
108 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
673 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
38 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.

033 
WGUS51 KCLE 141949
FFWCLE
OHC005-103-139-150000-
/O.NEW.KCLE.FF.W.0013.110514T1949Z-110515T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
349 PM EDT SAT MAY 14 2011

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ASHLAND COUNTY IN NORTH CENTRAL OHIO
  EASTERN RICHLAND COUNTY IN NORTH CENTRAL OHIO
  WESTERN MEDINA COUNTY IN NORTHEAST OHIO

* UNTIL 800 PM EDT

* AT 344 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. OVER AN INCH OF RAIN FELL AT A FEW LOCATIONS AND      
  ANOTHER ONE TO TWO INCHES MAY FALL AT A FEW LOCATIONS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ASHLAND...HAYESVILLE...LODI...LOUDONVILLE...POLK AND SAVANNAH.

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 4100 8255 4099 8244 4106 8244 4107 8217
      4114 8217 4114 8208 4120 8207 4120 8201
      4099 8201 4099 8213 4067 8213 4066 8222
      4057 8222 4056 8230 4056 8250

$$

KIELTYKA
1 follow-up statement
613 
WGUS71 KCLE 142311
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
711 PM EDT SAT MAY 14 2011

OHC005-103-139-150000-
/O.CON.KCLE.FF.W.0013.000000T0000Z-110515T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ASHLAND OH-MEDINA OH-RICHLAND OH-
711 PM EDT SAT MAY 14 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EASTERN RICHLAND...
WESTERN MEDINA AND ASHLAND COUNTIES UNTIL 800 PM EDT...

AT 703 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A A 
SMALL AREA OF THUNDERSTORMS THAT MAY MOVE ALONG THE RICHLAND AND 
ASHLAND COUNTY LINE THROUGH 8 PM. ADDITIONAL RAINFALL SHOULD BE 
UNDER AN INCH. 

SLOW MOVING THUNDERSTORMS ARE PRODUCING VERY HEAVY RAINFALL IN THE
WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING
INCLUDE...ASHLAND...HAYESVILLE...LODI...LOUDONVILLE...POLK AND
SAVANNAH.

LAW ENFORCEMENT INDICATED THAT MANY ROADS IN ASHLAND COUNTY ARE 
CLOSED BECAUSE OF HIGH WATER.

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 4100 8255 4099 8244 4106 8244 4107 8217
      4114 8217 4114 8208 4120 8207 4120 8201
      4099 8201 4099 8213 4067 8213 4066 8222
      4057 8222 4056 8230 4056 8250

$$

KIELTYKA

The office that day

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

IssuedProductOfficeCountiesLasted
May 13, 8:30 PM EDTAreal Flood AdvisoryCLEStark3 hr
May 13, 9:42 PM EDTFlash Flood WarningCLEAshland3 hr
May 14, 12:29 AM EDTAreal Flood AdvisoryCLEAshland6 hr
May 14, 4:19 AM EDTFlash Flood WatchCLEAshland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 22 more19 hr
May 14, 1:59 PM EDTFlash Flood WarningCLECuyahoga, Lorain4 hr
May 14, 2:31 PM EDTFlash Flood WarningCLEHancock, Marion, Wyandot2 hr
May 14, 3:24 PM EDTFlash Flood WarningCLECrawford, Huron, Knox, Morrow, Richland, Sandusky and 2 more4 hr
May 14, 4:07 PM EDTFlash Flood WarningCLECuyahoga, Geauga, Lake4 hr
May 14, 4:36 PM EDTFlash Flood WarningCLEHolmes, Knox, Medina, Wayne4 hr
May 14, 6:00 PM EDTAreal Flood WarningCLECuyahoga, Lorain5 hr
May 14, 6:07 PM EDTFlash Flood WarningCLEPortage, Stark, Summit4 hr
May 14, 6:22 PM EDTFlash Flood WarningCLEAshtabula4 hr
May 14, 7:18 PM EDTFlash Flood WarningCLEAshtabula, Trumbull4 hr
May 14, 7:42 PM EDTAreal Flood WarningCLEAshland, Knox, Richland4 hr
May 14, 7:50 PM EDTAreal Flood WarningCLEMahoning4 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.