Alert archive / Ohio / Flash Flood Warnings in 2004

Flash Flood Warning 9, NWS Cleveland, OH

May 21, 2004Cuyahoga County, Lorain County, Medina County, Ohio

NWS Cleveland, OH issued this flash flood warning at May 21, 2004, 4:05 PM EDT for Cuyahoga County, Lorain County, Medina County, Ohio. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 21, 2004, 4:05 PM EDT (20:05 UTC)
Expired
May 21, 2004, 8:00 PM EDT
In force
4 hr
Issued by
NWS Cleveland, OH
Area
Whole counties

Counties Cuyahoga County, OH, Lorain County, OH, Medina County, OH

The radar

The Cleveland radar (KCLE), 8 km from the middle of the area, began a volume at 20:09 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 (KPIT), launched 12:00Z, 8.1 hours before the alert went out and 185 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 2004-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 2004-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -197 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
873 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
-197 m²/s²
0-3 km storm-relative helicity
-213 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.

000 
WGUS51 KCLE 212007
FFWCLE
OHC035-093-103-220000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
405 PM EDT FRI MAY 21 2004

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LORAIN COUNTY IN NORTH CENTRAL OHIO...
  CUYAHOGA COUNTY IN NORTHEAST OHIO...
  MEDINA COUNTY IN NORTHEAST OHIO...

* UNTIL 800 PM EDT

* AT 359 PM EDT WEATHER SERVICE RADAR INDICATED A LINE OF 
THUNDERSTORMS WITH VERY HEAVY RAINFALL OVER LORAIN...MEDINA AND 
CUYAHOGA COUNTIES. RADAR ESTIMATES INDICATE RAINFALL RATES OF 2 TO 
4  INCHES PER HOUR. THIS RAINFALL COMBINED WITH THE RAINFALL FROM 
THIS MORNING MAY CAUSE DANGEROUS FLASH FLOODING.

THIS IS A VERY DANGEROUS SITUATION 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. VEHICLES CAUGHT IN RISING 
WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND.

$$

MRD

The office that day

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

IssuedProductOfficeCountiesLasted
May 20, 9:14 PM EDTSpecial Marine WarningCLE2 hr
May 20, 11:12 PM EDTSpecial Marine WarningCLE2 hr
May 20, 11:12 PM EDTSpecial Marine WarningCLE2 hr
May 21, 1:24 AM EDTSpecial Marine WarningCLE3 hr
May 21, 1:24 AM EDTSpecial Marine WarningCLE3 hr
May 21, 1:24 AM EDTSpecial Marine WarningCLE3 hr
May 21, 1:48 AM EDTSevere Thunderstorm WarningCLECuyahoga, Lake57 min
May 21, 2:26 AM EDTSevere Thunderstorm WarningCLEMedina, Summit64 min
May 21, 2:51 AM EDTSevere Thunderstorm WarningCLECuyahoga, Lorain54 min
May 21, 3:12 AM EDTFlash Flood WarningCLECrawford, Seneca, Wyandot2 hr
May 21, 3:14 AM EDTFlash Flood WarningCLELorain, Medina, Summit3 hr
May 21, 3:53 AM EDTSevere Thunderstorm WarningCLEStark67 min
May 21, 3:58 AM EDTSevere Thunderstorm WarningCLEWayne62 min
May 21, 4:00 AM EDTSevere Thunderstorm WarningCLEMahoning45 min
May 21, 4:06 AM EDTSevere Thunderstorm WarningCLEHolmes54 min
May 21, 1:42 PM EDTSpecial Marine WarningCLE2 hr
May 21, 2:02 PM EDTSevere Thunderstorm WarningCLELucas58 min
May 21, 2:26 PM EDTSevere Thunderstorm WarningCLEOttawa, Sandusky, Wood79 min
May 21, 2:55 PM EDTSevere Thunderstorm WarningCLEHancock, Seneca65 min
May 21, 3:07 PM EDTSevere Thunderstorm WarningCLEErie53 min
May 21, 3:16 PM EDTSevere Thunderstorm WarningCLEWyandot59 min
May 21, 3:22 PM EDTSevere Thunderstorm WarningCLECrawford, Huron53 min
May 21, 3:25 PM EDTFlash Flood WarningCLEHancock3 hr
May 21, 3:25 PM EDTSpecial Marine WarningCLE2 hr
May 21, 3:25 PM EDTSpecial Marine WarningCLE2 hr
May 21, 3:25 PM EDTSpecial Marine WarningCLE2 hr
May 21, 3:28 PM EDTSevere Thunderstorm WarningCLELorain62 min
May 21, 3:43 PM EDTSevere Thunderstorm WarningCLECuyahoga, Medina62 min
May 21, 3:44 PM EDTSevere Thunderstorm WarningCLEMarion61 min
May 21, 3:46 PM EDTSevere Thunderstorm WarningCLEMorrow, Richland59 min
May 21, 3:52 PM EDTFlash Flood WarningCLEWyandot3 hr
May 21, 3:59 PM EDTSevere Thunderstorm WarningCLEAshland61 min
May 21, 4:03 PM EDTSevere Thunderstorm WarningCLEKnox57 min
May 21, 4:06 PM EDTSevere Thunderstorm WarningCLESummit, Wayne54 min
May 21, 4:07 PM EDTTornado WarningCLERichland38 min
May 21, 4:11 PM EDTSevere Thunderstorm WarningCLEGeauga, Lake64 min
May 21, 4:11 PM EDTTornado WarningCLEKnox64 min
May 21, 4:18 PM EDTSevere Thunderstorm WarningCLEPortage57 min
May 21, 4:23 PM EDTSevere Thunderstorm WarningCLEHolmes, Stark67 min
May 21, 4:40 PM EDTSevere Thunderstorm WarningCLEAshtabula, Mahoning, Trumbull65 min
May 21, 4:43 PM EDTFlash Flood WarningCLEKnox, Marion, Morrow4 hr
May 21, 4:55 PM EDTFlash Flood WarningCLERichland4 hr
May 21, 5:04 PM EDTTornado WarningCLETrumbull26 min
May 21, 5:12 PM EDTTornado WarningCLEAshtabula33 min
May 21, 5:25 PM EDTFlash Flood WarningCLEAshtabula4 hr

Nearby

Flash Flood Warnings in Ohio, 2004Every flash flood warning in 2004

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.