Alert archive / Ohio / Flash Flood Warnings in 2014

Flash Flood Warning 1, NWS Cleveland, OH

February 21, 2014Cuyahoga County, Ohio

NWS Cleveland, OH issued this flash flood warning at Feb 21, 2014, 6:52 AM EST for Cuyahoga County, Ohio. It was in force for 18 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
Feb 21, 2014, 6:52 AM EST (11:52 UTC)
Expired
Feb 22, 2014, 1:00 AM EST
In force
18 hr
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Flood severity
None

County Cuyahoga County, OH

The radar

The Cleveland radar (KCLE), 7 km from the middle of the area, began a volume at 11:55 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 (KAGC), launched 00:00Z, 11.9 hours before the alert went out and 187 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 2014-02-21Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 00:00Z on 2014-02-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 656 square meters per square second.1939587897Sfc1 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
1428 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
656 m²/s²
0-3 km storm-relative helicity
760 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.

553 
WGUS51 KCLE 211152
FFWCLE
OHC035-220600-
/O.NEW.KCLE.FF.W.0001.140221T1152Z-140222T0600Z/
/00000.0.IJ.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
652 AM EST FRI FEB 21 2014

THE NATIONAL WEATHER SERVICE CLEVELAND HAS ISSUED A

* FLASH FLOOD WARNING FOR ICE JAM FLOODING IN...
  WESTERN CUYAHOGA COUNTY IN NORTHEAST OHIO

* UNTIL 100 AM EST SATURDAY

* AT 644 AM EST...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED A DEVELOPING
  ICE JAM ON THE ROCKY RIVER NEAR THE DETROIT AVENUE BRIDGE. RECENT
  RAIN...SNOWMELT...AND WARMER TEMPERATURES HAVE CAUSED RIVER LEVELS
  TO RISE AND THE ICE TO BREAKUP AND MOVE. 

* ICE JAMS WILL CAUSE WATER TO RISE RAPIDLY BEHIND THE ICE...WITH
  WATER ADVANCING RAPIDLY AWAY FROM THE RIVER IN BOTH DIRECTIONS.
  SHOULD THE ICE JAM FAIL SUDDENLY...A RAPID RISE ON THE
  ROCKY RIVER COULD MOVE DOWNSTREAM.

* FLASH FLOODING IS EXPECTED TO BE ISOLATED TO THE ICE JAM ON THE 
  ROCKY RIVER IN THE TOWN OF ROCKY RIVER. THE ROCKY RIVER METROPARK
  AND MARINA WILL BE INUNDATED BY ICE AND FLOOD WATERS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ICE JAM FLOODING CAN OCCUR SUDDENLY AND ADVANCE INTO AN AREA FROM AN
UNUSUAL DIRECTION. THE ICE JAM IS CONTINUING TO BUILD SO RESIDENTS 
SHOULD BE PREPARED TO ACT TO PROTECT LIFE AND PROPERTY. 

LAT...LON 4149 8182 4145 8181 4145 8184 4149 8186

$$

SJAMISON
3 follow-up statements
852 
WGUS71 KCLE 211254
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
754 AM EST FRI FEB 21 2014

OHC035-220600-
/O.CON.KCLE.FF.W.0001.000000T0000Z-140222T0600Z/
/00000.0.IJ.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CUYAHOGA OH-
754 AM EST FRI FEB 21 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR ICE JAM FLOODING IN
WESTERN CUYAHOGA COUNTY UNTIL 100 AM EST SATURDAY...

ROCKY RIVER POLICE HAVE REPORTED A SIGNIFICANT ICE JAM ON THE ROCKY 
RIVER AT THE DETROIT AVENUE BRIDGE IN CUYAHOGA COUNTY. WATER AND
HAS BEEN COMING UP IN THE METROPARK MARINA RAPIDLY DURING THE LAST
FEW HOURS AS A RESULT. RESIDENTS ALONG THE ROCKY RIVER NORTH OF THE
DETROIT AVENUE BRIDGE WERE BEING ASKED TO VOLUNTARILY EVACUATE AS
PRECAUTION IF THE ICE JAM WAS TO BREAK. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ICE JAM FLOODING IS DIFFICULT TO PREDICT...AND CONDITIONS CAN CHANGE
RAPIDLY AS A JAM FORMS AND BREAKS. FLOODING ASSOCIATED WITH ICE JAMS
IS OFTEN WORST IMMEDIATELY UPSTREAM OF THE JAM LOCATION. IF YOU LIVE
ALONG OR NEAR RIVERS PRONE TO ICE JAMS...BE PREPARED TO ACT QUICKLY
IF FLOODING IS OBSERVED...OR IF REQUESTED BY EMERGENCY PERSONNEL.

&&

LAT...LON 4149 8182 4145 8181 4145 8184 4149 8186

$$

SJAMISON
076 
WGUS71 KCLE 211812
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
112 PM EST FRI FEB 21 2014

OHC035-220600-
/O.CON.KCLE.FF.W.0001.000000T0000Z-140222T0600Z/
/00000.0.IJ.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CUYAHOGA OH-
112 PM EST FRI FEB 21 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR ICE JAM FLOODING IN
WESTERN CUYAHOGA COUNTY UNTIL 100 AM EST SATURDAY...

THE ICE JAM IN THE ROCKY RIVER HAS SHIFTED AND THE WATER WAS REPORTED
TO BE RISING RAPIDLY FROM THE METROPARK MARINA DOWN TO THE MOUTH 
OF THE RIVER. EMERGENCY CREWS AND RESIDENTS HAVE RELOCATED TO HIGHER 
GROUND. THIS IS AN UPDATED REPORT ON THE ICE JAM ALONG THE ROCKY RIVER
IN THE TOWN OF ROCKY RIVER IN WESTERN CUYAHOGA COUNTY. 

OFTEN ICE JAMS CAN RELEASE AND THEN JAM AGAIN FURTHER UPSTREAM. STAY
TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ICE JAM FLOODING IS DIFFICULT TO PREDICT...AND CONDITIONS CAN CHANGE
RAPIDLY AS A JAM FORMS AND BREAKS. FLOODING ASSOCIATED WITH ICE JAMS
IS OFTEN WORST IMMEDIATELY UPSTREAM OF THE JAM LOCATION. IF YOU LIVE
ALONG OR NEAR RIVERS PRONE TO ICE JAMS...BE PREPARED TO ACT QUICKLY
IF FLOODING IS OBSERVED...OR IF REQUESTED BY EMERGENCY PERSONNEL.

&&

LAT...LON 4149 8182 4145 8181 4145 8184 4149 8186

$$

SJAMISON
287 
WGUS71 KCLE 212108
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
408 PM EST FRI FEB 21 2014

OHC035-212125-
/O.CAN.KCLE.FF.W.0001.000000T0000Z-140222T0600Z/
/00000.0.IJ.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CUYAHOGA OH-
408 PM EST FRI FEB 21 2014

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR WESTERN CUYAHOGA
COUNTY IS CANCELLED...

THE ICE JAM AT THE MOUTH OF THE ROCKY RIVER HAS DISLODGED AND MOVED 
INTO LAKE ERIE. WATER AND ICE ARE NOW FLOWING FREELY...WHICH HAS 
ALLOWED RIVER LEVELS TO RECEDE BELOW FLOOD STAGE...ENDING THE FLOOD 
THREAT. 

REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY
MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN CLEVELAND.

LAT...LON 4149 8182 4145 8181 4145 8184 4149 8186

$$

SCHEPEL

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 20, 11:33 PM ESTSevere Thunderstorm WarningCLEHancock, Marion, Seneca, Wyandot42 min
Feb 21, 5:12 AM ESTRiver Flood WarningCLEMarion5 days
Feb 21, 6:16 AM ESTAreal Flood WarningCLECrawford, Richland8 hr
Feb 21, 9:59 AM ESTAreal Flood WarningCLEErie12 hr
Feb 21, 10:22 AM ESTRiver Flood WarningCLEOttawa, Sandusky, Wood3 days
Feb 21, 10:22 AM ESTRiver Flood WarningCLESeneca14 hr
Feb 21, 10:22 AM ESTRiver Flood WarningCLELucas, Wood5 days
Feb 21, 12:21 PM ESTRiver Flood WarningCLEHancock25 hr
Feb 21, 1:43 PM ESTAreal Flood WarningCLEErie, Lorain8 hr
Feb 21, 1:46 PM ESTRiver Flood WarningCLELake69 hr
Feb 21, 2:01 PM ESTAreal Flood AdvisoryCLECrawford6 hr
Feb 21, 4:51 PM ESTAreal Flood WarningCLESandusky, Seneca18 hr
Feb 21, 5:31 PM ESTAreal Flood WarningCLEErie, Huron12 hr

Nearby

Flash Flood Warnings in Ohio, 2014Every flash flood warning in 2014

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.