Alert archive / Ohio / Flash Flood Warnings in 2014

Flash Flood Warning 18, NWS Cleveland, OH

July 27, 2014Cuyahoga County, Geauga County, Ohio

NWS Cleveland, OH issued this flash flood warning at Jul 27, 2014, 5:04 PM EDT for Cuyahoga County, Geauga County, Ohio. It was in force for 4 hr. 2 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
Jul 27, 2014, 5:04 PM EDT (21:04 UTC)
Expired
Jul 27, 2014, 9:00 PM EDT
In force
4 hr
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Flood severity
None

Counties Cuyahoga County, OH, Geauga County, OH

The radar

The Cleveland radar (KCLE), 55 km from the middle of the area, began a volume at 21:06 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.

What was reported inside it

TimeReportWhereRemark
Jul 27, 5:25 PM EDTFLASH FLOODMiddlefield, OHNURSING HOME REPORTED TO HAVE MAJOR FLOODING. LOCAL FIRE DEPARTMENT HAS 9 INCHES OF STANDING WATER INSIDE.
Jul 27, 6:30 PM EDTHEAVY RAIN 4.13Middlefield, OH3 HOUR RAINFALL. WATER IN SOME HOMES AND ALSO STEET FLOODING.

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, 9.1 hours before the alert went out and 152 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 2014-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 787 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 2014-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 square meters per square second.1939587897Sfc1 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
787 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
530 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
139 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.1

Open this sounding in Storm Lab

The text

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

434 
WGUS51 KCLE 272104
FFWCLE
OHC035-055-280100-
/O.NEW.KCLE.FF.W.0018.140727T2104Z-140728T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

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

* UNTIL 900 PM EDT.

* AT 455 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. RECENT RAINFALL REPORT OF 2.5 INCHES OF RAIN HAS      
  FALLEN IN NOVELTY IN WESTERN GEAUGA COUNTY.

* LOCATIONS IMPACTED INCLUDE...
  CHARDON...
  SOUTH RUSSELL...
  SOLON...
  MIDDLEFIELD...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS WATER COVERED BRIDGES OR LOW WATER CROSSINGS.

ADDITIONAL RAINFALL AMOUNTS OF 2 INCHES ARE POSSIBLE IN THE WARNED 
AREA.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

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.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

&&

LAT...LON 4145 8100 4137 8100 4136 8123 4137 8148
      4155 8152 4157 8129 4163 8127 4165 8103

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 1:26 PM EDTSevere Thunderstorm WarningCLEMarion, Morrow64 min
Jul 27, 2:06 PM EDTSevere Thunderstorm WarningCLEKnox, Morrow54 min
Jul 27, 4:20 PM EDTAreal Flood AdvisoryCLECuyahoga, Geauga, Lake3 hr
Jul 27, 5:42 PM EDTSpecial Marine WarningCLE2 hr
Jul 27, 7:08 PM EDTFlash Flood WatchCLEAshtabula, Cuyahoga, Geauga, Lake, Trumbull17 hr
Jul 27, 7:13 PM EDTSpecial Marine WarningCLE77 min
Jul 27, 7:57 PM EDTSevere Thunderstorm WarningCLECuyahoga, Lake, Lorain63 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.