Alert archive / Ohio / Flash Flood Warnings in 2009

Flash Flood Warning 3, NWS Cleveland, OH

May 27, 2009Sandusky County, Ohio

NWS Cleveland, OH issued this flash flood warning at May 27, 2009, 3:18 PM EDT for Sandusky County, Ohio. It was in force for 6 hr. 1 report 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 27, 2009, 3:18 PM EDT (19:18 UTC)
Expired
May 27, 2009, 9:00 PM EDT
In force
6 hr
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Flood severity
None

County Sandusky County, OH

The radar

The Cleveland radar (KCLE), 98 km from the middle of the area, began a volume at 19:19 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 27, 4:30 PM EDTFLASH FLOODFremont, OHWATER OUT OF BANKS ON MUSKALONG CREEK

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

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 7.3 hours before the alert went out and 151 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, Detroit, MI at 12:00Z on 2009-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 358 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, Detroit, MI at 12:00Z on 2009-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 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
358 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
492 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
116 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 
WGUS71 KCLE 272001
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
301 PM EDT WED MAY 27 2009

OHC143-280100-
/O.CON.KCLE.FF.W.0003.000000T0000Z-090528T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SANDUSKY OH-
301 PM EDT WED MAY 27 2009

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SANDUSKY COUNTY UNTIL
900 PM EDT...

AT 345 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 
DOPPLER RADAR ESTIMATED UP TO THREE INCHES OF RAIN HAS FALLEN DURING 
THE PAST HOUR BETWEEN FREMONT AND HELENA.  2 TO 4.5 INCHES OF RAIN 
HAS FALLEN ALONG A LINE FROM HELENA...TO FREMONT...TO PORT CLINTON 
SINCE 130 PM.  

AN ADDITIONAL INCH OF RAIN IS POSSIBLE THROUGH 430 PM.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO 
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING 
INCLUDE...FREMONT...BALLVILLE...HELENA...LINDSEY AND STONY PRAIRIE.  
BE ALERT FOR HIGH WATER IF TRAVELLING ALONG US 6 WEST OF 
FREMONT...OR STATE ROUTE 19 AND 53 NORTH OF FREMONT THIS EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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. TURN AROUND...DONT DROWN

&&

LAT...LON 4143 8289 4144 8288 4142 8285 4126 8285
      4125 8342 4140 8331 4146 8314 4146 8309

$$

ASTIFAN
3 follow-up statements
000 
WGUS51 KCLE 271918
FFWCLE
OHC143-280100-
/O.NEW.KCLE.FF.W.0003.090527T1918Z-090528T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
318 PM EDT WED MAY 27 2009

THE NATIONAL WEATHER SERVICE CLEVELAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SANDUSKY COUNTY IN NORTHWEST OHIO

* UNTIL 900 PM EDT

* AT 312 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
NEARLY STATIONARY THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS 
CENTRAL SANDUSKY COUNTY FROM RISING SUN TO FREMONT. RAINFALL OF UP 
TO THREE INCHES IN LESS THAN ONE HOUR IS LIKELY WITH THESE STORMS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CLYDE...FREMONT...BALLVILLE...BURGOON...HELENA...LINDSEY AND STONY
  PRAIRIE


PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE QUICKLY FLOODING OF
SMALL CREEKS AND STREAMS. IN URBAN AREAS...FLOODING WILL RAPIDLY
OCCUR ALONG POORLY DRAINED AND LOW LYING HIGHWAYS...STREETS...AND
UNDERPASSES. IF YOU ENCOUNTER A FLOODED ROADWAY... TURN AROUND DONT
DROWN

&&

LAT...LON 4143 8289 4144 8288 4142 8285 4126 8285
      4125 8342 4140 8331 4146 8314 4146 8309

$$

ASTIFAN/ABE
000 
WGUS71 KCLE 272138
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
538 PM EDT WED MAY 27 2009

OHC143-280100-
/O.CON.KCLE.FF.W.0003.000000T0000Z-090528T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SANDUSKY OH-
538 PM EDT WED MAY 27 2009

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SANDUSKY COUNTY UNTIL
900 PM EDT...

AT 526 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE 
THUNDERSTORMS THAT PRODUCED VERY HEAVY RAINFALL ACROSS THE WARNED 
AREA HAVE MOVED EAST OF THE AREA. ADDITIONAL RAINFALL IN ISOLATED 
SHOWERS AND THUNDERSTORMS SHOULD BE LIGHT AS THEY MOVE THROUGH THE 
AREA.

DOPPLER RADAR INDICATED STORM TOTAL RAINFALL AMOUNTS OF UP TO 4 
INCHES FELL ACROSS THE WARNING AREA.

CONTINUED RUNOFF FROM THE EXCESSIVE RAINFALL WILL CONTINUE TO CAUSE 
FLASH FLOODING OVER THE NEXT FEW HOURS. SOME LOCATIONS THAT WILL 
EXPERIENCE FLOODING INCLUDE...FREMONT...BALLVILLE...HELENA...LINDSEY 
AND STONY PRAIRIE.  BE ALERT FOR HIGH WATER IF TRAVELLING ALONG US 6 
WEST OF FREMONT...OR STATE ROUTE 19 AND 53 NORTH OF FREMONT THIS 
EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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. TURN AROUND...DONT DROWN

&&

LAT...LON 4143 8289 4144 8288 4142 8285 4126 8285
      4125 8342 4140 8331 4146 8314 4146 8309

$$

LOMBARDY
000 
WGUS71 KCLE 280100
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
900 PM EDT WED MAY 27 2009

OHC143-280115-
/O.EXP.KCLE.FF.W.0003.000000T0000Z-090528T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SANDUSKY OH-
900 PM EDT WED MAY 27 2009

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SANDUSKY COUNTY HAS
BEEN ALLOWED TO EXPIRE...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 4143 8289 4144 8288 4142 8285 4126 8285
      4125 8342 4140 8331 4146 8314 4146 8309

$$

LOMBARDY

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 8:47 PM EDTAreal Flood AdvisoryCLEAshland3 hr
May 27, 2:32 PM EDTSevere Thunderstorm WarningCLEErie, Huron, Ottawa, Sandusky58 min
May 27, 2:39 PM EDTFlash Flood WarningCLEOttawa, Sandusky6 hr
May 27, 3:02 PM EDTSevere Thunderstorm WarningCLEOttawa, Sandusky, Seneca, Wood58 min
May 27, 3:06 PM EDTSpecial Marine WarningCLE114 min
May 27, 3:10 PM EDTSpecial Marine WarningCLE2 hr
May 27, 3:11 PM EDTSevere Thunderstorm WarningCLECuyahoga, Lorain51 min
May 27, 3:38 PM EDTSpecial Marine WarningCLE2 hr
May 27, 4:09 PM EDTSevere Thunderstorm WarningCLELake51 min
May 27, 4:18 PM EDTSpecial Marine WarningCLE117 min
May 27, 5:03 PM EDTSevere Thunderstorm WarningCLEPortage, Summit57 min
May 27, 5:52 PM EDTSevere Thunderstorm WarningCLEHuron, Lorain, Medina53 min

Nearby

Flash Flood Warnings in Ohio, 2009Every flash flood warning in 2009

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.