Alert archive / Ohio / Flash Flood Warnings in 2018

Flash Flood Warning 6, NWS Cleveland, OH

June 13, 2018Ottawa County, Ohio

NWS Cleveland, OH issued this flash flood warning at Jun 13, 2018, 12:15 AM EDT for Ottawa 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
Jun 13, 2018, 12:15 AM EDT (04:15 UTC)
Expired
Jun 13, 2018, 6:15 AM EDT
In force
6 hr
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Flood severity
None

County Ottawa County, OH

The radar

The Cleveland radar (KCLE), 89 km from the middle of the area, began a volume at 04:15 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
Jun 13, 12:30 AM EDTFLASH FLOODPort Clinton, OHSHERIFF REPORTED NUMEROUS ROAD CLOSURES FROM PORT CLINTON TO OAK HARBOR. BASEMENTS HAVE BEEN FLOODED AND TWO FAMILIES HAVE BEEN DISPLACED FROM THEIR HOME. NUMEROUS ROAD CLOSURES AND STANDING WATER HAVE PERSISTED THROUGH THE OVERNIGHT HOURS INTO THE MORNING AND

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, 4.3 hours before the alert went out and 140 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 00:00Z on 2018-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 21 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 00:00Z on 2018-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 square meters per square second.193958Sfc1 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
21 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
745 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

459 
WGUS51 KCLE 130415
FFWCLE
OHC123-131015-
/O.NEW.KCLE.FF.W.0006.180613T0415Z-180613T1015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Cleveland OH
1215 AM EDT WED JUN 13 2018

The National Weather Service in Cleveland has issued a

* Flash Flood Warning for...
  Ottawa County in northwestern Ohio...

* Until 615 AM EDT Wednesday

* At 1214 AM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Two to locally three inches of 
  rain have already fallen. Flash flooding is expected to begin 
  shortly. An additional 1 to 2 inches is possible. 

* Some locations that will experience flooding include...
  Port Clinton, Oak Harbor, Elmore, Catawba Island and Marblehead. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 4146 8333 4157 8304 4152 8293 4153 8288
      4158 8286 4160 8283 4155 8278 4155 8273
      4153 8270 4150 8271 4148 8284 4148 8295
      4145 8300

$$

Mullen
2 follow-up statements
543 
WGUS71 KCLE 130631
FFSCLE

Flash Flood Statement
National Weather Service Cleveland OH
231 AM EDT WED JUN 13 2018

OHC123-131015-
/O.CON.KCLE.FF.W.0006.000000T0000Z-180613T1015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ottawa OH-
231 AM EDT WED JUN 13 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 615 AM EDT FOR
OTTAWA COUNTY...

At 229 AM EDT, local law enforcement reported several road closures 
due to flooding from Oak Harbor to Port Clinton. Little to no 
additional rainfall is expected early this morning, however up to 
three inches of rain have already fallen across the warning area.

Some locations that will experience flooding include...
Port Clinton, Oak Harbor, Elmore, Catawba Island and Marblehead. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 4146 8333 4157 8304 4152 8293 4153 8288
      4158 8286 4160 8283 4155 8278 4155 8273
      4153 8270 4150 8271 4148 8284 4148 8295
      4145 8300

$$

Greenawalt
559 
WGUS71 KCLE 131016
FFSCLE

Flash Flood Statement
National Weather Service Cleveland OH
616 AM EDT WED JUN 13 2018

OHC123-131025-
/O.EXP.KCLE.FF.W.0006.000000T0000Z-180613T1015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ottawa OH-
616 AM EDT WED JUN 13 2018

...THE FLASH FLOOD WARNING FOR OTTAWA COUNTY HAS EXPIRED...

The heavy rain has ended and little to no additional rainfall is 
expected this morning. Some roads remain closed in the Port Clinton 
area due to high water, however flood waters will continue to recede 
this morning. Please continue to heed any remaining road closures.

LAT...LON 4146 8333 4157 8304 4152 8293 4153 8288
      4158 8286 4160 8283 4155 8278 4155 8273
      4153 8270 4150 8271 4148 8284 4148 8295
      4145 8300

$$

Greenawalt

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 8:01 PM EDTSpecial Weather StatementCLESandusky44 min
Jun 12, 10:31 PM EDTAreal Flood AdvisoryCLEOttawa3 hr
Jun 13, 6:15 AM EDTAreal Flood AdvisoryCLEOttawa9 hr

Nearby

Flash Flood Warnings in Ohio, 2018Every flash flood warning in 2018

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.