Alert archive / Ohio / Flash Flood Warnings in 2010

Flash Flood Warning 3, NWS Cleveland, OH

May 31, 20104 counties in Ohio

NWS Cleveland, OH issued this flash flood warning at May 31, 2010, 3:54 PM EDT for 4 counties in Ohio. It was in force for 6 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
May 31, 2010, 3:54 PM EDT (19:54 UTC)
Expired
May 31, 2010, 10:00 PM EDT
In force
6 hr
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Flood severity
None

Counties Crawford County, OH, Marion County, OH, Seneca County, OH, Wyandot County, OH

The radar

The Cleveland radar (KCLE), 126 km from the middle of the area, began a volume at 19:56 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
May 31, 4:20 PM EDTFLOODUpper Sandusky, OHFLOODING REPORTED ACROSS MANY ROADS THROUGHOUT COUNTY. FIRST REPORTS CAME IN AROUND 420 PM
May 31, 6:36 PM EDTFLOODBucyrus, OHWATER FLOWING ACROSS RTE 4 IN BUCYRUS EST 1 TO 2 FEET DEEP. ONE CAR STRANDED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.9 hours before the alert went out and 167 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 12:00Z on 2010-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 957 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, Cncnati-Daytn, OH at 12:00Z on 2010-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -34 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
957 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
767 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-34 m²/s²
0-3 km storm-relative helicity
22 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.

961 
WGUS51 KCLE 311954
FFWCLE
OHC033-101-147-175-010200-
/O.NEW.KCLE.FF.W.0003.100531T1954Z-100601T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
354 PM EDT MON MAY 31 2010

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CRAWFORD COUNTY IN NORTH CENTRAL OHIO
  NORTHERN MARION COUNTY IN NORTH CENTRAL OHIO
  SENECA COUNTY IN NORTHWEST OHIO
  WYANDOT COUNTY IN NORTHWEST OHIO

* UNTIL 1000 PM EDT

* AT 350 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. DOPPLER RADAR INDICATES THAT 1 TO 3 INCHES OF RAIN IS 
  LIKELY THROUGH 6 PM. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BUCYRUS...SYCAMORE...TIFFIN...UPPER SANDUSKY...BLOOMVILLE...
  CHATFIELD...CRESTLINE...GALION...MARSEILLES...MORRAL...NEW RIEGEL
  AND NEW WASHINGTON.


LAT...LON 4091 8347 4098 8345 4099 8342 4124 8342
      4125 8285 4100 8283 4099 8272 4072 8273
      4071 8286 4065 8286 4065 8295 4059 8296
      4058 8342 4069 8342 4070 8348 4089 8351

$$

KUBINA
3 follow-up statements
928 
WGUS71 KCLE 312037
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
437 PM EDT MON MAY 31 2010

OHC033-101-147-175-010200-
/O.CON.KCLE.FF.W.0003.000000T0000Z-100601T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAWFORD OH-WYANDOT OH-MARION OH-SENECA OH-
437 PM EDT MON MAY 31 2010

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHERN MARION AND
CRAWFORD COUNTIES IN NORTH CENTRAL OHIO...AND SENECA AND WYANDOT
COUNTIES IN NORTHWEST OHIO UNTIL 1000 PM EDT...

AT 432 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 
DOPPLER RADAR ESTIMATES INDICATE THAT AS MUCH AS THREE INCHES OF 
RAINFALL HAS ALREADY FALLEN OVER WESTERN WYANDOT COUNTY.  RADAR ALSO 
INDICATES THAT BETWEEN ONE AND TWO INCHES OF RAINFALL HAS FALLEN 
OVER PORTIONS OF SOUTHERN SENECA COUNTY.  ADDITIONAL SHOWERS AND 
THUNDERSTORMS WILL MOVE OVER THE WARNING AREA THE NEXT COUPLE OF 
HOURS.  RAINFALL RATES WITH THE STRONGER STORMS WILL EXCEED TWO 
INCHES PER HOUR.  HEAVY RAIN WILL SPREAD OVER WESTERN CRAWFORD 
COUNTY DURING THE NEXT HOUR.  

SLOW MOVING THUNDERSTORMS ARE PRODUCING VERY HEAVY RAINFALL IN THE
WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING
INCLUDE...BUCYRUS...MARION...SYCAMORE...TIFFIN...UPPER SANDUSKY...
BLOOMVILLE...CHATFIELD...CRESTLINE...GALION...MARSEILLES...MORRAL...
NEW RIEGEL AND NEW WASHINGTON.

LAT...LON 4091 8347 4098 8345 4099 8342 4124 8342
      4125 8285 4100 8283 4099 8272 4072 8273
      4071 8286 4065 8286 4065 8295 4059 8296
      4058 8342 4069 8342 4070 8348 4089 8351

$$

KUBINA
131 
WGUS71 KCLE 312348
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
748 PM EDT MON MAY 31 2010

OHC033-101-147-175-010200-
/O.CON.KCLE.FF.W.0003.000000T0000Z-100601T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAWFORD OH-WYANDOT OH-MARION OH-SENECA OH-
748 PM EDT MON MAY 31 2010

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHERN MARION AND
CRAWFORD COUNTIES IN NORTH CENTRAL OHIO...AND SENECA AND WYANDOT
COUNTIES IN NORTHWEST OHIO UNTIL 1000 PM EDT...

AT 739 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
SHOWERS AND THUNDERSTORMS OVER THE WARNED AREA.  DOPPLER RADAR HAS 
ESTIMATED THAT AS MUCH AS 4 INCHES OF RAIN HAS ALREADY FALLEN OVER 
PORTIONS OF NORTHERN MARION AND WESTERN WYANDOT COUNTY.  1 TO 3 
INCHES OF RAIN HAS ALSO FALLEN OVER MUCH OF CRAWFORD COUNTY AND 
PORTIONS OF SENECA COUNTY.  ADDITIONAL SHOWERS AND THUNDERSTORMS 
WILL MOVE ACROSS THE AREA THIS EVENING.  UP TO AN ADDITIONAL INCH OF 
RAIN IS POSSIBLE THROUGH 10 PM.  RAPID RISES IN AREA STREAMS AND 
RIVERS IS LIKELY THIS EVENING AND OVERNIGHT.  

SLOW MOVING THUNDERSTORMS ARE PRODUCING VERY HEAVY RAINFALL IN THE
WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING
INCLUDE...BUCYRUS...MARION...SYCAMORE...TIFFIN...UPPER SANDUSKY...
BLOOMVILLE...CHATFIELD...CRESTLINE...GALION...MARSEILLES...MORRAL...
NEW RIEGEL AND NEW WASHINGTON.

LAW ENFORCEMENT HAS REPORTED HIGH WATER ON MANY ROADS IN THE WARNED 
AREA...ESPECIALLY ACROSS WESTERN WYANDOT AND NORTHERN MARION 
COUNTIES. 

LAT...LON 4091 8347 4098 8345 4099 8342 4124 8342
      4125 8285 4100 8283 4099 8272 4072 8273
      4071 8286 4065 8286 4065 8295 4059 8296
      4058 8342 4069 8342 4070 8348 4089 8351

$$

KUBINA
291 
WGUS71 KCLE 010158
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
958 PM EDT MON MAY 31 2010

OHC033-101-147-175-010209-
/O.EXP.KCLE.FF.W.0003.000000T0000Z-100601T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAWFORD OH-WYANDOT OH-MARION OH-SENECA OH-
958 PM EDT MON MAY 31 2010

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR NORTHERN MARION AND
CRAWFORD COUNTIES IN NORTH CENTRAL OHIO...AND SENECA AND WYANDOT
COUNTIES IN NORTHWEST OHIO WILL BE ALLOWED TO EXPIRE AT 1000 PM
EDT...

LITTLE ADDITIONAL RAINFALL IS EXPECTED OVERNIGHT. HOWEVER...RUNOFF 
FROM EARLIER RAINS MAY CAUSE AREA STREAMS AND RIVERS TO RISE 
OVERNIGHT.  PONDING OF WATER IN LOW LYING AREAS IS ALSO LIKELY.  
DOPPLER RADAR ESTIMATES AND REPORTS FROM SPOTTERS INDICATE THAT AS 
MUCH AS 4 INCHES OF RAIN HAS FALLEN IN WESTERN WYANDOT COUNTY AND 
NORTHERN MARION COUNTY.  IF FLOODING HAS BEEN OBSERVED...PLEASE 
REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 4091 8347 4098 8345 4099 8342 4124 8342
      4125 8285 4100 8283 4099 8272 4072 8273
      4071 8286 4065 8286 4065 8295 4059 8296
      4058 8342 4069 8342 4070 8348 4089 8351

$$

KUBINA

The office that day

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

IssuedProductOfficeCountiesLasted
May 31, 12:23 PM EDTAreal Flood AdvisoryCLEPortage, Stark, Summit3 hr
May 31, 12:40 PM EDTSevere Thunderstorm WarningCLESeneca13 min
May 31, 12:56 PM EDTAreal Flood AdvisoryCLECuyahoga3 hr
May 31, 12:59 PM EDTSevere Thunderstorm WarningCLELucas, Ottawa, Sandusky, Wood46 min
May 31, 1:11 PM EDTSevere Thunderstorm WarningCLEGeauga34 min
May 31, 1:13 PM EDTSpecial Marine WarningCLE92 min
May 31, 1:16 PM EDTFlash Flood WarningCLECuyahoga, Geauga, Lake3 hr
May 31, 1:40 PM EDTSpecial Marine WarningCLE2 hr
May 31, 2:04 PM EDTSevere Thunderstorm WarningCLEAshtabula43 min
May 31, 2:12 PM EDTFlash Flood WarningCLEAshtabula6 hr
May 31, 3:08 PM EDTFlash Flood WatchCLEAshland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 22 more14 hr
May 31, 3:16 PM EDTSevere Thunderstorm WarningCLEHancock, Sandusky, Seneca, Wood59 min
May 31, 4:41 PM EDTFlash Flood WarningCLEErie, Ottawa, Sandusky5 hr
May 31, 4:44 PM EDTSevere Thunderstorm WarningCLECrawford, Marion, Wyandot61 min
May 31, 5:55 PM EDTFlash Flood WarningCLEHuron4 hr
May 31, 6:47 PM EDTAreal Flood AdvisoryCLECuyahoga, Lorain6 hr

Nearby

Flash Flood Warnings in Ohio, 2010Every flash flood warning in 2010

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.