Alert archive / Ohio / Areal Flood Advisories in 2021

Areal Flood Advisory 44, NWS Cleveland, OH

July 11, 20218 counties in Ohio

NWS Cleveland, OH issued this areal flood advisory at Jul 11, 2021, 12:14 PM EDT for 8 counties in Ohio. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jul 11, 2021, 12:14 PM EDT (16:14 UTC)
Expired
Jul 11, 2021, 3:15 PM EDT
In force
3 hr
Issued by
NWS Cleveland, OH
Area
Storm-based polygon

Counties Ashland County, OH, Holmes County, OH, Knox County, OH, Medina County, OH, Richland County, OH, Stark County, OH, Summit County, OH, Wayne County, OH

The radar

The Cleveland radar (KCLE), 68 km from the middle of the area, began a volume at 16:13 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 (KPIT), launched 12:00Z, 4.2 hours before the alert went out and 165 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 12:00Z on 2021-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 2021-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
5 J/kg
Mixed-layer CIN
-180 J/kg
Mixed-layer LCL
979 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Cleveland, OH wrote its last area forecast discussion before this areal flood advisory went out at Jul 11, 10:00 AM EDT, 2 hours 14 minutes earlier.

Area forecast discussion, Jul 11, 10:00 AM EDT, 2 hours 14 minutes before
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Hazardous weather outlook, Jul 11, 6:01 AM EDT, 6 hours 13 minutes before
Hazardous Weather Outlook
National Weather Service Cleveland OH
601 AM EDT Sun Jul 11 2021

OHZ003-006>011-013-014-017>023-027>033-036>038-047-PAZ002-003-121015-
Lucas-Wood-Ottawa-Sandusky-Erie-Lorain-Cuyahoga-Geauga-
Ashtabula Inland-Hancock-Seneca-Huron-Medina-Summit-Portage-Trumbull-
Wyandot-Crawford-Richland-Ashland-Wayne-Stark-Mahoning-Marion-Morrow-
Holmes-Knox-Southern Erie-
601 AM EDT Sun Jul 11 2021

This Hazardous Weather Outlook is for north central Ohio, northeast
Ohio, northwest Ohio and northwest Pennsylvania.

.DAY ONE...Today and tonight.

Showers and thunderstorms are expected across the area today. Heavy
rainfall is possible this afternoon, and minor flooding is possible
where storms move over the same area in a repeated fashion. Some
thunderstorms may be strong to severe this afternoon and evening,
mainly along and southeast of a Mt. Vernon to Akron to Youngstown
line. Damaging wind gusts and a tornado or two are the primary
threats if storms become severe.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Showers and thunderstorms are again possible across the area Monday
and Tuesday. Isolated strong to severe storms with heavy rainfall are
possible each of these days, especially during the afternoon and
evening hours.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

OHZ012-089-PAZ001-121015-
Lake-Ashtabula Lakeshore-Northern Erie-
601 AM EDT Sun Jul 11 2021

This Hazardous Weather Outlook is for northeast Ohio and northwest
Pennsylvania.

.DAY ONE...Today and tonight.

Showers and thunderstorms are expected across the area today. Heavy
rainfall is possible this afternoon, and minor flooding is possible
where storms move over the same area in a repeated fashion.

There is a moderate risk of rip currents along Lake Erie beaches this
afternoon and evening.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Showers and thunderstorms are again possible across the area Monday
and Tuesday. Isolated strong to severe storms with heavy rainfall are
possible each of these days, especially during the afternoon and
evening hours.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

LEZ061-142>149-162>169-121015-
Ripley to Buffalo NY extending from 5NM off shoreline to US-
Canadian border-Maumee Bay to Reno Beach OH-
Reno Beach to The Islands OH-The Islands to Vermilion OH-
Vermilion to Avon Point OH-Avon Point to Willowick OH-
Willowick to Geneva-on-the Lake OH-Geneva-on-the-Lake to Conneaut OH-
Conneaut OH to Ripley NY-
Detroit River Lt. to Maumee Bay OH to Reno Beach OH beyond 5NM
offshoreline to US-Canadian border-
Reno Beach to The Islands OH beyond 5NM off shoreline to US-
Canadian border-
The Islands to Vermilion OH beyond 5 nm off shoreline to US-
Canadian border-
Vermilion to Avon Point OH beyond 5 nm off shoreline to US-
Canadian border-
Avon Point to Willowick OH beyond 5 nm off shoreline to US-
Canadian border-Willowick to Geneva-on-the-
Lake OH beyond 5NM off shoreline to US-Canadian border-Geneva-on-the-
Lake to Conneaut OH beyond 5 nm off shoreline to US-Canadian border-
Conneaut OH to Ripley NY beyond 5 nm off shoreline to US-
Canadian border-
601 AM EDT Sun Jul 11 2021

This Hazardous Weather Outlook is for Lake Erie.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 3:52 AM EDTSmall Craft AdvisoryCLE18 hr
Jul 11, 2:03 PM EDTSpecial Weather StatementCLEPortage, Stark, Summit57 min
Jul 11, 2:13 PM EDTAreal Flood WarningCLEAshland, Holmes, Medina, Stark, Summit, Wayne8 hr
Jul 11, 3:41 PM EDTSpecial Weather StatementCLEMahoning34 min
Jul 11, 6:30 PM EDTSpecial Weather StatementCLEHuron45 min
Jul 11, 7:13 PM EDTAreal Flood AdvisoryCLECrawford, Erie3 hr

Nearby

Areal Flood Advisories in Ohio, 2021Every areal flood advisory in 2021

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.