Alert archive / Ohio / Flash Flood Warnings in 2002

Flash Flood Warning 12, NWS Cleveland, OH

July 29, 2002Ashtabula County, Ohio

NWS Cleveland, OH issued this flash flood warning at Jul 29, 2002, 3:55 AM EDT for Ashtabula County, Ohio. It was in force for 110 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 29, 2002, 3:55 AM EDT (07:55 UTC)
Expired
Jul 29, 2002, 5:45 AM EDT
In force
110 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Ashtabula County, OH

The radar

The Cleveland radar (KCLE), 106 km from the middle of the area, began a volume at 07:55 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 00:00Z, 7.9 hours before the alert went out and 174 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 2002-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2239 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2002-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 square meters per square second.193958Sfc1 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
2239 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1181 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.5
Supercell composite
4.3

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KCLE 290755
FFWCLE
OHC007-290945-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
351 AM EDT MON JUL 29 2002

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ASHTABULA COUNTY IN OHIO...

* UNTIL 545 AM EDT

* AT 343 AM EDT WEATHER SERVICE RADAR INDICATED THUNDERSTORMS WITH 
HEAVY RAIN OVER 2 INCHES AN HOUR MOVING EAST ACROSS THE COUNTY.

* SOME LOCATIONS AFFECTED INCLUDE...
  ANDOVER
  ASHTABULA
  CONNEAUT
  GENEVA
  JEFFERSON
  NORTH KINGSVILLE
  ORWELL

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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.

$$
SEM

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 28, 8:03 PM EDTSevere Thunderstorm WarningCLEHancock57 min
Jul 28, 8:51 PM EDTSevere Thunderstorm WarningCLEOttawa54 min
Jul 28, 9:07 PM EDTSevere Thunderstorm WarningCLEWood53 min
Jul 28, 9:19 PM EDTSpecial Marine WarningCLE116 min
Jul 28, 9:19 PM EDTSpecial Marine WarningCLE116 min
Jul 28, 9:30 PM EDTSevere Thunderstorm WarningCLELorain60 min
Jul 28, 9:42 PM EDTSevere Thunderstorm WarningCLECuyahoga63 min
Jul 28, 9:50 PM EDTSevere Thunderstorm WarningCLELake55 min
Jul 28, 9:54 PM EDTSevere Thunderstorm WarningCLESandusky51 min
Jul 28, 10:00 PM EDTSevere Thunderstorm WarningCLEAshtabula, Geauga45 min
Jul 28, 10:30 PM EDTSevere Thunderstorm WarningCLELorain60 min
Jul 28, 10:38 PM EDTSevere Thunderstorm WarningCLEPortage67 min
Jul 28, 10:48 PM EDTSevere Thunderstorm WarningCLEAshtabula, Trumbull57 min
Jul 29, 4:48 PM EDTSpecial Marine WarningCLE117 min
Jul 29, 4:48 PM EDTSpecial Marine WarningCLE117 min
Jul 29, 5:24 PM EDTSevere Thunderstorm WarningCLEHancock66 min
Jul 29, 5:37 PM EDTSevere Thunderstorm WarningCLEWood38 min
Jul 29, 5:57 PM EDTSevere Thunderstorm WarningCLESandusky, Seneca48 min
Jul 29, 6:03 PM EDTSevere Thunderstorm WarningCLEMarion, Wyandot57 min
Jul 29, 6:09 PM EDTSpecial Marine WarningCLE2 hr
Jul 29, 6:09 PM EDTSpecial Marine WarningCLE2 hr
Jul 29, 6:09 PM EDTSpecial Marine WarningCLE2 hr
Jul 29, 6:24 PM EDTSevere Thunderstorm WarningCLECrawford36 min
Jul 29, 6:32 PM EDTSevere Thunderstorm WarningCLEErie, Huron43 min
Jul 29, 6:38 PM EDTSevere Thunderstorm WarningCLEMorrow67 min
Jul 29, 6:41 PM EDTSevere Thunderstorm WarningCLEAshland, Richland49 min
Jul 29, 6:48 PM EDTSevere Thunderstorm WarningCLELorain42 min
Jul 29, 7:02 PM EDTSevere Thunderstorm WarningCLECuyahoga, Medina43 min
Jul 29, 7:07 PM EDTSevere Thunderstorm WarningCLEKnox53 min
Jul 29, 7:17 PM EDTSevere Thunderstorm WarningCLEWayne58 min
Jul 29, 7:39 PM EDTSevere Thunderstorm WarningCLECuyahoga, Geauga, Lake51 min
Jul 29, 7:50 PM EDTSevere Thunderstorm WarningCLEStark55 min
Jul 29, 7:56 PM EDTSpecial Marine WarningCLE94 min
Jul 29, 7:56 PM EDTSevere Thunderstorm WarningCLEPortage49 min

Nearby

Flash Flood Warnings in Ohio, 2002Every flash flood warning in 2002

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.