Alert archive / Ohio / Flash Flood Warnings in 2014

Flash Flood Warning 19, NWS Cleveland, OH

July 27, 2014Cuyahoga County, Geauga County, Lake County, Ohio

NWS Cleveland, OH issued this flash flood warning at Jul 27, 2014, 8:54 PM EDT for Cuyahoga County, Geauga County, Lake County, Ohio. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 27, 2014, 8:54 PM EDT (00:54 UTC)
Expired
Jul 28, 2014, 3:00 AM EDT
In force
6 hr
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Flood severity
None

Counties Cuyahoga County, OH, Geauga County, OH, Lake County, OH

The radar

The Cleveland radar (KCLE), 49 km from the middle of the area, began a volume at 00:56 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

Pittsburgh, PA (KAGC), launched 00:00Z, 0.9 hours before the alert went out and 161 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 00:00Z on 2014-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 504 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 00:00Z on 2014-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 216 square meters per square second.19395878Sfc1 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
504 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
1098 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
216 m²/s²
0-3 km storm-relative helicity
213 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

469 
WGUS51 KCLE 280054
FFWCLE
OHC035-055-085-280700-
/O.NEW.KCLE.FF.W.0019.140728T0054Z-140728T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
854 PM EDT SUN JUL 27 2014

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN CUYAHOGA COUNTY IN NORTHEAST OHIO...
  GEAUGA COUNTY IN NORTHEAST OHIO...
  LAKE COUNTY IN NORTHEAST OHIO...

* UNTIL 300 AM EDT MONDAY.

* AT 847 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. TWO TO FOUR INCHES OF RAIN HAVE ALREADY FALLEN OVER   
  PARTS OF THE WARNED AREA. AN ADDITIONAL ONE TO THREE INCHES OF     
  RAIN IS EXPECTED...WHICH MAY LEAD TO INTENSE FLASH FLOODING IN     
  GEAUGA COUNTY.

* LOCATIONS IMPACTED INCLUDE...
  PAINESVILLE...
  CHARDON...
  WILLOUGHBY...
  SOUTH RUSSELL...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT OR IN A VEHICLE.

&&

LAT...LON 4135 8100 4135 8159 4159 8158 4164 8149
      4171 8140 4179 8100

$$
2 follow-up statements
389 
WGUS71 KCLE 280356
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
1156 PM EDT SUN JUL 27 2014

OHC035-055-085-280700-
/O.CON.KCLE.FF.W.0019.000000T0000Z-140728T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CUYAHOGA OH-GEAUGA OH-LAKE OH-
1156 PM EDT SUN JUL 27 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR LAKE...GEAUGA AND
EASTERN CUYAHOGA COUNTIES UNTIL 300 AM EDT...

AT 1154 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED NO 
RAINFALL OVER THE WARNING AREA. MUCH OF THE WATER HAS MOVED INTO 
AREA CREEKS AND RIVERS WITH A FEW LOW LYING AREAS STILL HOLDING A 
BIT OF WATER. THE RIVERS AND CREEKS ARE LIKELY CLOSE TO CRESTING AND 
WILL BEGIN SO SLOWLY FALL THROUGH 3 AM.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF DRIVING...SLOW DOWN! BE ALERT FOR LOW
SPOTS...DIPS...AND UNDERPASSES WHICH MAY BE FLOODED. PEOPLE IN LOW
LYING AREAS ALONG CREEKS AND STREAMS SHOULD MOVE TO HIGHER GROUND TO
ESCAPE RISING WATER LEVELS.

&&

LAT...LON 4135 8100 4135 8159 4159 8158 4164 8149
      4171 8140 4179 8100

$$
306 
WGUS71 KCLE 280702
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
302 AM EDT MON JUL 28 2014

OHC035-055-085-280710-
/O.EXP.KCLE.FF.W.0019.000000T0000Z-140728T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CUYAHOGA OH-GEAUGA OH-LAKE OH-
302 AM EDT MON JUL 28 2014

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR LAKE...GEAUGA AND
EASTERN CUYAHOGA COUNTIES HAS EXPIRED...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA WERE BEGINNING TO RECEDE...ENDING THE 
FLOOD THREAT. HOWEVER BE ALERT THROUGH THE MORNING FOR ADDITIONAL 
BURSTS OF HEAVY RAINFALL. THE SATURATED SOILS WILL CAUSE RAPID 
RUNOFF. 

IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW 
ENFORCEMENT AGENCY.

LAT...LON 4135 8100 4135 8159 4159 8158 4164 8149
      4171 8140 4179 8100

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 8:10 PM EDTSpecial Marine WarningCLE80 min
Jul 27, 8:21 PM EDTTornado WarningCLECuyahoga, Lake39 min
Jul 27, 8:42 PM EDTSevere Thunderstorm WarningCLEGeauga, Portage, Summit48 min
Jul 27, 9:12 PM EDTSevere Thunderstorm WarningCLEPortage, Summit47 min
Jul 27, 9:18 PM EDTSevere Thunderstorm WarningCLETrumbull57 min
Jul 27, 9:20 PM EDTSevere Thunderstorm WarningCLEAshtabula44 min
Jul 27, 9:31 PM EDTSevere Thunderstorm WarningCLEMahoning44 min
Jul 27, 9:44 PM EDTSevere Thunderstorm WarningCLEStark46 min
Jul 28, 4:44 AM EDTSmall Craft AdvisoryCLE23 hr
Jul 28, 4:56 AM EDTRip Current StatementCLEAshtabula, Cuyahoga, Erie, Lake, Lorain, Lucas and 2 more17 hr

Nearby

Flash Flood Warnings in Ohio, 2014Every flash flood warning in 2014

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.