Alert archive / Ohio / Flash Flood Warnings in 2008

Flash Flood Warning 7, NWS Cleveland, OH

July 8, 20084 counties in Ohio

NWS Cleveland, OH issued this flash flood warning at Jul 8, 2008, 5:19 PM EDT for 4 counties in 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 outline as issued.

The facts

Issued
Jul 8, 2008, 5:19 PM EDT (21:19 UTC)
Expired
Jul 8, 2008, 8:49 PM EDT
In force
4 hr
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Flood severity
None

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

The radar

The Cleveland radar (KCLE), 51 km from the middle of the area, began a volume at 21:20 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, 9.3 hours before the alert went out and 162 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 2008-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 73 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 2008-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 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
73 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
1156 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
60 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 082121
FFWCLE
OHC007-035-055-085-090315-
/O.NEW.KCLE.FF.W.0007.080708T2119Z-080709T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
519 PM EDT TUE JUL 8 2008

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

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

* UNTIL 1115 PM EDT

* AT 515 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. OVER 2    
  INCHES OF RAINFALL HAS OCCURED OVER EASTERN CUYAHOGA COUNTY OVER   
  THE PAST HOUR. TOTAL RAINFALL OF 2 TO 3 INCHES IS POSSIBLE IN      
  THE WARNED AREA THIS EVENING.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  WILLOUGHBY...SOLON...PERRY...PAINESVILLE...NORTH KINGSVILLE...
  MENTOR...MADISON...JEFFERSON...GENEVA...EUCLID...EASTLAKE...
  CONNEAUT...CLEVELAND HEIGHTS...CLEVELAND...CHESTERLAND...CHARDON   
  AND ASHTABULA. 

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

LAT...LON 4199 8052 4169 8054 4145 8137 4136 8138
      4134 8143 4135 8158 4127 8155 4127 8162
      4150 8180 4151 8170 4162 8150 4171 8139
      4187 8099
TIME...MOT...LOC 2119Z 180DEG 0KT 4138 8177

$$
2 follow-up statements
000 
WGUS71 KCLE 082309
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
705 PM EDT TUE JUL 8 2008

OHC007-035-055-085-090315-
/O.CON.KCLE.FF.W.0007.000000T0000Z-080709T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CUYAHOGA OH-GEAUGA OH-LAKE OH-ASHTABULA OH-
705 PM EDT TUE JUL 8 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1115 PM EDT FOR
ASHTABULA...LAKE...NORTHERN GEAUGA AND CUYAHOGA COUNTIES...

AT 658 PM EDT...NUMEROUS ROADS IN NORTHERN GEAUGA...NORTHERN 
ASHTABULA AND LAKE COUNTIES WERE REPORTED FLOODED EARLIER THIS 
EVENING.

THUNDERSTORMS HAVE DECREASED IN COVERAGE AND INTENSITY BUT LIGHT 
RAINS CONTINUE TO FALL. ADDITIONAL LIGHT TO OCCASIONALLY MODERATE
RAINFALL WILL END BY 8 PM. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WILLOUGHBY...
SOLON...PERRY...PAINESVILLE...NORTH KINGSVILLE...MENTOR...MADISON...
JEFFERSON...GENEVA...EUCLID...EASTLAKE...CONNEAUT...CLEVELAND
HEIGHTS...CLEVELAND...CHESTERLAND...CHARDON AND ASHTABULA

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

LAT...LON 4199 8052 4169 8054 4145 8137 4136 8138
      4134 8143 4135 8158 4127 8155 4127 8162
      4150 8180 4151 8170 4162 8150 4171 8139
      4187 8099
TIME...MOT...LOC 2305Z 180DEG 0KT 4138 8177

$$
000 
WGUS71 KCLE 090049
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
849 PM EDT TUE JUL 8 2008

OHC007-035-055-085-090059-
/O.CAN.KCLE.FF.W.0007.000000T0000Z-080709T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CUYAHOGA OH-GEAUGA OH-LAKE OH-ASHTABULA OH-
849 PM EDT TUE JUL 8 2008

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR ASHTABULA...LAKE...
NORTHERN GEAUGA AND CUYAHOGA COUNTIES...

THUNDERSTORMS WHICH HAD PRODUCED THE HEAVY RAINFALL ACROSS THE AREA 
HAVE MOVED EAST.  WHILE SOME SMALL STREAMS AND POORLY DRAINED AREAS 
COULD STILL BE EXPERIENCING MINOR FLOODING...THE THREAT OF 
WIDESPREAD FLOODING HAS ENDED.

LAT...LON 4199 8052 4169 8054 4145 8137 4136 8138
      4134 8143 4135 8158 4127 8155 4127 8162
      4150 8180 4151 8170 4162 8150 4171 8139
      4187 8099
TIME...MOT...LOC 0049Z 180DEG 0KT 4138 8177

$$

TK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 2:06 PM EDTSpecial Marine WarningCLE114 min
Jul 8, 2:24 PM EDTSevere Thunderstorm WarningCLEAshtabula51 min
Jul 8, 2:28 PM EDTSpecial Marine WarningCLE2 hr
Jul 8, 2:28 PM EDTSevere Thunderstorm WarningCLELucas, Wood47 min
Jul 8, 2:39 PM EDTSevere Thunderstorm WarningCLEHancock, Wood51 min
Jul 8, 2:48 PM EDTTornado WarningCLELucas, Ottawa42 min
Jul 8, 2:56 PM EDTSevere Thunderstorm WarningCLEOttawa, Sandusky53 min
Jul 8, 3:20 PM EDTSevere Thunderstorm WarningCLESeneca55 min
Jul 8, 3:27 PM EDTSevere Thunderstorm WarningCLEHancock63 min
Jul 8, 3:31 PM EDTSevere Thunderstorm WarningCLEErie44 min
Jul 8, 3:34 PM EDTSevere Thunderstorm WarningCLEHuron56 min
Jul 8, 3:47 PM EDTSevere Thunderstorm WarningCLEGeauga, Lake43 min
Jul 8, 3:48 PM EDTSpecial Marine WarningCLE57 min
Jul 8, 3:59 PM EDTSevere Thunderstorm WarningCLEWyandot61 min
Jul 8, 4:08 PM EDTSevere Thunderstorm WarningCLELorain67 min
Jul 8, 4:11 PM EDTSevere Thunderstorm WarningCLEAshtabula64 min
Jul 8, 4:22 PM EDTSevere Thunderstorm WarningCLEAshland, Medina53 min
Jul 8, 4:28 PM EDTSevere Thunderstorm WarningCLECuyahoga62 min
Jul 8, 4:45 PM EDTAreal Flood AdvisoryCLEAshtabula, Cuyahoga, Geauga, Lake4 hr
Jul 8, 5:07 PM EDTSevere Thunderstorm WarningCLESummit53 min
Jul 8, 5:13 PM EDTSevere Thunderstorm WarningCLEGeauga, Lake62 min
Jul 8, 5:21 PM EDTSevere Thunderstorm WarningCLEPortage54 min
Jul 8, 5:37 PM EDTSevere Thunderstorm WarningCLEKnox, Morrow53 min
Jul 8, 5:47 PM EDTSevere Thunderstorm WarningCLETrumbull58 min
Jul 8, 6:01 PM EDTSevere Thunderstorm WarningCLEStark44 min
Jul 8, 6:15 PM EDTSevere Thunderstorm WarningCLEAshtabula75 min
Jul 8, 6:18 PM EDTAreal Flood AdvisoryCLEAshtabula, Geauga, Portage, Summit107 min
Jul 8, 6:31 PM EDTSevere Thunderstorm WarningCLEMahoning44 min

Nearby

Flash Flood Warnings in Ohio, 2008Every flash flood warning in 2008

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.