Alert archive / Ohio / Flash Flood Warnings in 2014

Flash Flood Warning 9, NWS Cleveland, OH

May 21, 20144 counties in Ohio

NWS Cleveland, OH issued this flash flood warning at May 21, 2014, 11:10 PM EDT for 4 counties in Ohio. It was in force for 5 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 21, 2014, 11:10 PM EDT (03:10 UTC)
Expired: May 22, 2014, 4:00 AM EDT
In force: 5 hr
Issued by: NWS Cleveland, OH
Area: Storm-based polygon
Flood severity: None

Counties Ashtabula County, OH, Geauga County, OH, Lake County, OH, Trumbull County, OH

The radar

The Cleveland radar (KCLE), 84 km from the middle of the area, began a volume at 03:12 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

Time	Report	Where	Remark
May 21, 11:10 PM EDT	FLASH FLOOD	Madison, OH	2.5 INCHES OF RAIN WAS MEASURED BETWEEN 930 AND 11 PM. WORST FLOODING ON THE EAST END OF TOWN WITH NUMEROUS BASEMENTS INUNDATED. STATE ROUTE 84 FLOODED WITH 4 FEET OF FLOWING WATER FROM AREA CREEK.
May 21, 11:25 PM EDT	FLASH FLOOD	Geneva, OH	A SMALL CREEK NEAR THE HOSPITAL CAME OUT OF BANKS FLOODING NUMEROUS ROADS AND A TRAILER PARK. A CONSTRUCTION SITE WAS DAMAGED BY THE HEAVY RAIN AND FLOWING FLOOD WATERS.

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

The nearest sounding before it

Pittsburgh, PA (KAGC), launched 00:00Z, 3.2 hours before the alert went out and 148 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 819 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 785 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 147 m²/s²
0-3 km storm-relative helicity: 170 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

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

017 
WGUS51 KCLE 220310
FFWCLE
OHC007-055-085-155-220800-
/O.NEW.KCLE.FF.W.0009.140522T0310Z-140522T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
1110 PM EDT WED MAY 21 2014

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ASHTABULA COUNTY IN NORTHEAST OHIO...
  EASTERN GEAUGA COUNTY IN NORTHEAST OHIO...
  NORTHEASTERN LAKE COUNTY IN NORTHEAST OHIO...
  TRUMBULL COUNTY IN NORTHEAST OHIO...

* UNTIL 400 AM EDT.

* AT 1104 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. LOCALLY OVER 2 INCHES OF RAIN MAY FALL IN A SHORT     
  TIME. THE GROUND IS SOMEWHAT SATURATED. WIDESPREAD RAPID FLOODING  
  OF ROADS...STREAMS AND CREEKS WILL BE LIKELY. 

* LOCATIONS IMPACTED INCLUDE...
  WARREN...
  PAINESVILLE...
  JEFFERSON...
  CHARDON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 4198 8052 4114 8051 4114 8098 4134 8100
      4135 8108 4174 8135 4185 8106 4188 8091

$$
KIELTYKA

2 follow-up statements

539 
WGUS71 KCLE 220422
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
1222 AM EDT THU MAY 22 2014

OHC007-055-085-155-220800-
/O.CON.KCLE.FF.W.0009.000000T0000Z-140522T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TRUMBULL OH-GEAUGA OH-LAKE OH-ASHTABULA OH-
1222 AM EDT THU MAY 22 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR ASHTABULA...NORTHEASTERN
LAKE...NORTHEASTERN GEAUGA AND NORTHERN TRUMBULL COUNTIES UNTIL 400
AM EDT...

AT 1215 AM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT FLASH 
FLOODING WAS OCCURRING IN MADISON IN LAKE COUNTY. SOME ROAD FLOODING 
WAS ALSO OCCURRING IN WILLIAMSFIELD IN SOUTHERN ASHTABULA COUNTY. 
THE SHOWERS AND THUNDERSTORMS WERE DECREASING. BETWEEN 2 AND 4 
INCHES OF RAIN MAY HAVE FALLEN AT A FEW LOCATIONS WEDNESDAY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF DRIVING...SLOW DOWN! BE ALERT FOR LOW
SPOTS...DIPS...AND UNDERPASSES WHICH MAY BE FLOODED. PEOPLE IN LOW
LYING AREAS ALONG CREEKS AND STREAMS SHOULD MOVE TO HIGHER GROUND TO
ESCAPE RISING WATER LEVELS.

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...DON'T DROWN!

A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA...MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS A FLOODED AREA ON FOOT OR BY AUTOMOBILE.

&&

LAT...LON 4198 8052 4124 8051 4124 8068 4126 8072
      4174 8126 4185 8106 4188 8091

$$

KIELTYKA

926 
WGUS71 KCLE 220553
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
153 AM EDT THU MAY 22 2014

OHC155-220559-
/O.CAN.KCLE.FF.W.0009.000000T0000Z-140522T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TRUMBULL OH-
153 AM EDT THU MAY 22 2014

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR NORTHERN TRUMBULL
COUNTY IS CANCELLED...

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.

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 4198 8052 4150 8053 4151 8098 4174 8126
      4185 8106 4188 8091

$$

OHC007-055-085-220800-
/O.CON.KCLE.FF.W.0009.000000T0000Z-140522T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GEAUGA OH-LAKE OH-ASHTABULA OH-
153 AM EDT THU MAY 22 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR ASHTABULA...NORTHEASTERN
LAKE AND NORTHEASTERN GEAUGA COUNTIES UNTIL 400 AM EDT...

SOME LOCATIONS IN THE FLASH FLOOD WARNING HAD BETWEEN 2 AND 4 INCHES 
OF RAIN WEDNESDAY EVENING. SOME CREEKS WERE OVERFLOWING IN THE 
MADISON AREA CAUSING FLOODED ROADS AND BASEMENTS. SOME ROADS WERE 
ALSO FLOODED IN GENEVA TOWNSHIP AND IN THE ROME AREA. THE HEAVY RAIN 
HAS ENDED AND SINCE THE GROUND IS SATURATED...THE WATER WILL ONLY 
SLOWLY RECEDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF DRIVING...SLOW DOWN! BE ALERT FOR LOW
SPOTS...DIPS...AND UNDERPASSES WHICH MAY BE FLOODED. PEOPLE IN LOW
LYING AREAS ALONG CREEKS AND STREAMS SHOULD MOVE TO HIGHER GROUND TO
ESCAPE RISING WATER LEVELS.

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...DON'T DROWN!

A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA...MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS A FLOODED AREA ON FOOT OR BY AUTOMOBILE.

&&

LAT...LON 4198 8052 4150 8053 4151 8098 4174 8126
      4185 8106 4188 8091

$$

KIELTYKA

The office that day

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

Issued	Product	Office	Counties	Lasted
May 21, 8:27 PM EDT	Severe Thunderstorm Warning	CLE	Erie, Ottawa, Sandusky	63 min
May 21, 8:36 PM EDT	Areal Flood Advisory	CLE	Erie, Ottawa	3 hr
May 21, 8:45 PM EDT	Special Marine Warning	CLE		2 hr
May 21, 8:46 PM EDT	Special Marine Warning	CLE		89 min
May 21, 9:17 PM EDT	Severe Thunderstorm Warning	CLE	Erie, Huron, Lorain	58 min
May 21, 9:29 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula, Geauga, Lake	61 min
May 21, 9:30 PM EDT	Special Marine Warning	CLE		75 min
May 21, 9:41 PM EDT	Areal Flood Advisory	CLE	Erie, Huron	3 hr
May 21, 9:54 PM EDT	Areal Flood Warning	CLE	Ashtabula, Geauga, Lake	3 hr
May 21, 10:16 PM EDT	Severe Thunderstorm Warning	CLE	Ashland, Huron, Richland	74 min
May 21, 10:55 PM EDT	Areal Flood Advisory	CLE	Ashland, Lorain, Medina, Richland	3 hr
May 21, 10:58 PM EDT	Tornado Warning	CLE	Ashtabula, Trumbull	47 min
May 21, 11:28 PM EDT	Severe Thunderstorm Warning	CLE	Ashland, Holmes, Knox, Richland	77 min
May 21, 11:30 PM EDT	Areal Flood Advisory	CLE	Erie, Ottawa	3 hr
May 22, 2:08 PM EDT	River Flood Warning	CLE	Lake	18 hr

Nearby

Flash Flood Warnings in Ohio, 2014 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.