Alert archive / Ohio / Flash Flood Warnings in 2011

Flash Flood Warning 34, NWS Cleveland, OH

July 23, 2011Seneca County, Ohio

NWS Cleveland, OH issued this flash flood warning at Jul 23, 2011, 2:46 AM EDT for Seneca County, Ohio. It was in force for 11 hr. 3 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: Jul 23, 2011, 2:46 AM EDT (06:46 UTC)
Expired: Jul 23, 2011, 2:00 PM EDT
In force: 11 hr
Issued by: NWS Cleveland, OH
Area: Storm-based polygon
Flood severity: None

County Seneca County, OH

The radar

The Cleveland radar (KCLE), 112 km from the middle of the area, began a volume at 06:47 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
Jul 23, 3:12 AM EDT	FLASH FLOOD	Fostoria, OH	UNDERPASSES IN THE CITY OF FOSTORIA ARE FLOODED
Jul 23, 5:00 AM EDT	FLASH FLOOD	Tiffin, OH	ROADS CLOSED DUE TO FLODDING INCLUDING STATE ROUTE 53 AND STSTE ROUTE 18.
Jul 23, 6:05 AM EDT	FLASH FLOOD	Tiffin, OH	VEHICLE STALLED IN FLOODING ON ROUTE 224 NEAR TIFFIN. PRECAUTIONARY EVACUATIONS OCCURRING AT A TRAILER PARK AND THE YMCA BUILDING IN TIFFIN. MOST ROADS CLOSED BY HIGH WATER.

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 00:00Z, 6.8 hours before the alert went out and 173 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: 132 J/kg
Mixed-layer CIN: -150 J/kg
Mixed-layer LCL: 1207 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 146 m²/s²
0-3 km storm-relative helicity: 199 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

138 
WGUS51 KCLE 230646
FFWCLE
OHC147-231300-
/O.NEW.KCLE.FF.W.0034.110723T0646Z-110723T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
246 AM EDT SAT JUL 23 2011

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

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

* UNTIL 900 AM EDT.

* AT 243 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. RAINFALL AMOUNTS OF 1 TO 3 INCHES HAVE ALREADY        
  OCCURRED OVER MUCH OF THE COUNTY WITH ANOTHER 1 TO 3 INCHES        
  POSSIBLE THROUGH SUNRISE. REPORTS FROM LAW ENFORCEMENT INDICATE    
  THAT SEVERAL ROADWAYS HAD HIGH WATER ON THEM. 

* LOCATIONS IMPACTED INCLUDE...
  TIFFIN...
  FOSTORIA...
  NEW RIEGEL...
  GREEN SPRINGS...

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

&&

LAT...LON 4125 8342 4126 8333 4125 8325 4125 8285
      4116 8283 4100 8283 4099 8342

$$

3 follow-up statements

848 
WGUS71 KCLE 231020
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
620 AM EDT SAT JUL 23 2011

OHC147-231300-
/O.CON.KCLE.FF.W.0034.000000T0000Z-110723T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SENECA OH-
620 AM EDT SAT JUL 23 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SENECA COUNTY UNTIL 900
AM EDT...

AT 600 AM...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT MANY OF 
THE ROADS ACROSS SENECA COUNTY HAD WATER ON THEM AND A NUMBER OF 
ROADS WERE CLOSED DUE TO FLOODING. FLOODING WAS REPORTED ON ROUTE 
224 EAST AND WEST OF TIFFIN AS WELL AS ROUTE 53 NORTH AND SOUTH OF 
TIFFIN. 

TRAVEL WILL BE DIFFICULT IN SENECA COUNTY UNTIL WATER LEVELS RECEDE. 
IT WILL TAKE UNTIL MID TO LATE MORNING BEFORE WATER LEVELS BEGIN TO 
GO DOWN. SOME WATERWAYS MAY REMAIN IN FLOOD ALL DAY. ADDITIONAL RAIN 
IS LIKELY DURING THE DAY TODAY AND TONIGHT. MORE FLASH FLOODING 
COULD OCCUR WITH ADDITIONAL HEAVY RAIN.

DOPPLER RADAR ESTIMATED AT LEAST 3 TO 6 INCHES OF RAIN HAS FALLEN 
OVERNIGHT IN SENECA COUNTY. A RAINFALL REPORT FROM BASCOM MEASURED 
4.22 INCHES OVERNIGHT. 

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...DON'T DROWN!

&&

LAT...LON 4125 8342 4126 8333 4125 8325 4125 8285
      4116 8283 4100 8283 4099 8342

$$

KOSARIK

837 
WGUS51 KCLE 231121
FFWCLE
OHC147-231800-
/O.EXT.KCLE.FF.W.0034.000000T0000Z-110723T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
721 AM EDT SAT JUL 23 2011

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS EXTENDED THE

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

* UNTIL 200 PM EDT SATURDAY.

* AT 700 AM...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT MANY 
ROADS IN SENECA COUNTY WERE CLOSED BY HIGH WATER INCLUDING STATE 
ROUTES 18 AND 53.

* LOCATIONS IMPACTED INCLUDE...
  TIFFIN...
  FOSTORIA...
  NEW RIEGEL...
  BLOOMVILLE...

TRAVEL WILL BE DIFFICULT IN SENECA COUNTY UNTIL WATER LEVELS RECEDE. 
IT COULD TAKE UNTIL AFTERNOON FOR WATER LEVELS TO BEGIN TO GO DOWN. 
SOME WATERWAYS AND LOW LYING AREAS MAY REMAIN IN FLOOD ALL DAY. 
ADDITIONAL RAIN IS LIKELY DURING THE DAY AND TONIGHT. MORE FLASH 
FLOODING COULD OCCUR WITH ADDITIONAL HEAVY RAIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOODING IS OCCURRING. MOST FLOOD RELATED DEATHS OCCUR IN 
AUTOMOBILES. DO NOT ATTEMPT TO CROSS ROADS COVERED BY 
WATER...ESPECIALLY FLOWING WATER. NEVER DRIVE AROUND OR MOVE 
BARRICADES. NEVER CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON 
FOOT OR IN A VEHICLE. THE WATER MAY BE DEEPER THAN YOU THINK.  THE 
POWER OF FLOWING WATER CAN WASH YOU AND YOUR CAR AWAY.

&&

LAT...LON 4125 8342 4126 8333 4125 8325 4125 8285
      4116 8283 4100 8283 4099 8342

$$

KOSARIK

272 
WGUS71 KCLE 231458
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
1058 AM EDT SAT JUL 23 2011

OHC147-231800-
/O.CON.KCLE.FF.W.0034.000000T0000Z-110723T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SENECA OH-
1058 AM EDT SAT JUL 23 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SENECA COUNTY UNTIL 200
PM EDT...

AT 1049 AM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT 
FLOODING WAS CONTINUING IN MANY AREAS OF THE COUNTY WITH NUMEROUS 
ROADS REMAINING CLOSED DUE TO HIGH WATER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE
ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON
FOOT OR IN A VEHICLE. TURN AROUND...DON'T DROWN!

&&

LAT...LON 4125 8342 4126 8333 4125 8325 4125 8285
      4116 8283 4100 8283 4099 8342

$$

KING

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 11:48 PM EDT	Special Marine Warning	CLE		87 min
Jul 23, 12:00 AM EDT	Severe Thunderstorm Warning	CLE	Holmes, Knox	60 min
Jul 23, 1:29 AM EDT	Areal Flood Advisory	CLE	Knox	3 hr
Jul 23, 3:40 AM EDT	Flash Flood Watch	CLE	Ashland, Crawford, Cuyahoga, Erie, Geauga, Hancock and 21 more	26 hr
Jul 23, 4:06 AM EDT	Areal Flood Advisory	CLE	Lorain	4 hr
Jul 23, 6:45 AM EDT	Areal Flood Advisory	CLE	Ashland, Crawford, Huron, Lorain, Richland	3 hr
Jul 23, 8:50 AM EDT	Areal Flood Advisory	CLE	Ottawa, Sandusky	4 hr
Jul 23, 2:00 PM EDT	Areal Flood Warning	CLE	Seneca	8 hr
Jul 23, 2:38 PM EDT	Areal Flood Advisory	CLE	Wyandot	4 hr
Jul 23, 2:43 PM EDT	Areal Flood Advisory	CLE	Marion, Morrow	4 hr
Jul 23, 3:07 PM EDT	Flash Flood Warning	CLE	Wyandot	6 hr
Jul 23, 3:59 PM EDT	Heat Advisory	CLE	Ashland, Crawford, Hancock, Holmes, Huron, Knox and 8 more	23 hr
Jul 23, 5:20 PM EDT	Severe Thunderstorm Warning	CLE	Hancock	55 min
Jul 23, 5:25 PM EDT	Areal Flood Advisory	CLE	Holmes	3 hr
Jul 23, 5:44 PM EDT	Special Marine Warning	CLE		76 min
Jul 23, 5:53 PM EDT	Severe Thunderstorm Warning	CLE	Sandusky, Seneca, Wood	67 min
Jul 23, 5:58 PM EDT	Severe Thunderstorm Warning	CLE	Lorain	62 min
Jul 23, 6:16 PM EDT	Special Marine Warning	CLE		89 min
Jul 23, 6:26 PM EDT	Areal Flood Advisory	CLE	Wood	4 hr
Jul 23, 6:52 PM EDT	Areal Flood Advisory	CLE	Cuyahoga	3 hr
Jul 23, 7:12 PM EDT	Severe Thunderstorm Warning	CLE	Lucas, Ottawa, Sandusky, Seneca, Wood	78 min
Jul 23, 7:15 PM EDT	Special Marine Warning	CLE		2 hr
Jul 23, 7:16 PM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga, Geauga	44 min
Jul 23, 7:36 PM EDT	Flash Flood Warning	CLE	Ottawa, Sandusky	6 hr
Jul 23, 7:38 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula, Geauga, Trumbull	67 min
Jul 23, 7:56 PM EDT	Areal Flood Advisory	CLE	Hancock	3 hr

Nearby

Flash Flood Warnings in Ohio, 2011 Every flash flood warning in 2011

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.