Alert archive / Ohio / Flash Flood Warnings in 2014

Flash Flood Warning 15, NWS Cleveland, OH

June 23, 2014Knox County, Ohio

NWS Cleveland, OH issued this flash flood warning at Jun 23, 2014, 9:44 PM EDT for Knox County, Ohio. It was in force for 8 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
Jun 23, 2014, 9:44 PM EDT (01:44 UTC)
Expired
Jun 24, 2014, 6:00 AM EDT
In force
8 hr
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Flood severity
None

County Knox County, OH

The radar

The Cleveland radar (KCLE), 129 km from the middle of the area, began a volume at 01:44 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, 1.7 hours before the alert went out and 150 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 2014-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 407 joules per kilogram.LCLEL10008507005003002001001 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 2014-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 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
407 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
1771 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

620 
WGUS51 KCLE 240144
FFWCLE
OHC083-241000-
/O.NEW.KCLE.FF.W.0015.140624T0144Z-140624T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
944 PM EDT MON JUN 23 2014

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  KNOX COUNTY IN NORTH CENTRAL OHIO...

* UNTIL 600 AM EDT TUESDAY.

* AT 936 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
A LINE OF SLOW MOVING THUNDERSTORMS MOVING INTO KNOX COUNTY.  
BETWEEN AN INCH AND TWO INCHES HAVE ALREADY FALLEN THIS EVENING.

* LOCATIONS IMPACTED INCLUDE...
  MOUNT VERNON...
  GAMBIER...
  FREDERICKTOWN...
  DANVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 4029 8274 4033 8273 4035 8265 4054 8263
      4057 8218 4025 8219

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 8:49 PM EDTAreal Flood WarningCLEMedina6 hr
Jun 23, 9:29 PM EDTFlash Flood WarningCLEHolmes8 hr
Jun 23, 10:18 PM EDTFlash Flood WatchCLEAshland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 22 more35 hr
Jun 24, 1:18 AM EDTRiver Flood WarningCLEHolmes, Wayne7 days
Jun 24, 4:58 AM EDTAreal Flood WarningCLEHolmes4 hr
Jun 24, 5:58 AM EDTAreal Flood WarningCLEKnox4 hr
Jun 24, 3:18 PM EDTSevere Thunderstorm WarningCLELorain28 min
Jun 24, 4:36 PM EDTAreal Flood AdvisoryCLEHolmes, Knox3 hr
Jun 24, 4:53 PM EDTSevere Thunderstorm WarningCLECuyahoga, Geauga, Lake67 min
Jun 24, 7:47 PM EDTFlash Flood WarningCLECuyahoga, Lorain6 hr
Jun 24, 7:48 PM EDTAreal Flood WarningCLEHuron6 hr
Jun 24, 7:56 PM EDTAreal Flood WarningCLECrawford, Marion6 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.