Alert archive / Ohio / Areal Flood Advisories in 2021

Areal Flood Advisory 111, NWS Cleveland, OH

October 9, 2021Ashtabula County, Mahoning County, Trumbull County, Ohio; Crawford County, Erie County, Pennsylvania

NWS Cleveland, OH issued this areal flood advisory at Oct 9, 2021, 1:56 AM EDT for Ashtabula County, Mahoning County, Trumbull County, Ohio; Crawford County, Erie County, Pennsylvania. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Oct 9, 2021, 1:56 AM EDT (05:56 UTC)
Expired: Oct 9, 2021, 9:30 AM EDT
In force: 8 hr
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

Counties Ashtabula County, OH, Mahoning County, OH, Trumbull County, OH, Crawford County, PA, Erie County, PA

The radar

The Cleveland radar (KCLE), 115 km from the middle of the area, began a volume at 06:00 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 00:00Z, 5.9 hours before the alert went out and 137 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: 306 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 1035 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 61 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 Oct 9, 1:35 AM EDT, 21 minutes earlier.

Area forecast discussion, Oct 9, 1:35 AM EDT, 21 minutes before

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Hazardous weather outlook, Oct 8, 3:21 PM EDT, 10 hours 35 minutes before

Hazardous Weather Outlook
National Weather Service Cleveland OH
321 PM EDT Fri Oct 8 2021

LEZ061-142>149-162>169-OHZ003-006>014-017>023-027>033-036>038-047-
089-PAZ001>003-091930-
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-Lucas-Wood-Ottawa-Sandusky-Erie-Lorain-Cuyahoga-Lake-
Geauga-Ashtabula Inland-Hancock-Seneca-Huron-Medina-Summit-Portage-
Trumbull-Wyandot-Crawford-Richland-Ashland-Wayne-Stark-Mahoning-
Marion-Morrow-Holmes-Knox-Ashtabula Lakeshore-Northern Erie-
Southern Erie-
321 PM EDT Fri Oct 8 2021

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

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Oct 8, 9:41 PM EDT, 4 hours 15 minutes before

Special Weather Statement
National Weather Service Cleveland OH
941 PM EDT Fri Oct 8 2021

OHZ008-090230-
Sandusky OH-
941 PM EDT Fri Oct 8 2021

...A strong thunderstorm will impact portions of central Sandusky
County through 1030 PM EDT...

At 940 PM EDT, Doppler radar was tracking a strong thunderstorm near
Fremont, moving northeast at 10 mph.

HAZARD...Winds in excess of 30 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Fremont, Ballville, Vickery and Stony Prairie.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4146 8313 4145 8302 4145 8301 4143 8301
      4144 8299 4138 8292 4125 8317 4126 8318
      4132 8325
TIME...MOT...LOC 0140Z 222DEG 10KT 4130 8318

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...30 MPH

26

Local storm report, Oct 8, 10:05 PM EDT, 3 hours 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CLEVELAND OH
1005 PM EDT FRI OCT 8 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1000 PM     HAIL             1 SW FREMONT            41.34N 83.12W
10/08/2021  M1.00 INCH       SANDUSKY           OH   PUBLIC

            MULTIPLE QUARTER-SIZE HAIL REPORTS IN THE
            CITY OF FREMONT.

&&

DK

Local storm report, Oct 8, 10:18 PM EDT, 3 hours 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CLEVELAND OH
1018 PM EDT FRI OCT 8 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0953 PM     HAIL             1 N BALLVILLE           41.34N 83.14W
10/08/2021  M1.00 INCH       SANDUSKY           OH   TRAINED SPOTTER

            SPOTTER REPORTS QUARTER-SIZE HAIL IN
            BALLVILLE.

&&

DK

Local storm report, Oct 8, 10:29 PM EDT, 3 hours 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CLEVELAND OH
1029 PM EDT FRI OCT 8 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1000 PM     TSTM WND DMG     1 WSW FREMONT           41.35N 83.13W
10/08/2021                   SANDUSKY           OH   TRAINED SPOTTER

            SEVERAL REPORTS OF TREES DOWN ACROSS
            FREMONT.

&&

DK

Special weather statement, Oct 8, 10:32 PM EDT, 3 hours 24 minutes before

Special Weather Statement
National Weather Service Cleveland OH
1032 PM EDT Fri Oct 8 2021

OHZ007-090300-
Ottawa OH-
1032 PM EDT Fri Oct 8 2021

...A strong thunderstorm will impact portions of Ottawa County
through 1100 PM EDT...

At 1032 PM EDT, Doppler radar was tracking a strong thunderstorm near
Port Clinton, moving northeast at 15 mph.

HAZARD...Winds in excess of 40 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Port Clinton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4155 8302 4152 8297 4151 8300 4152 8289
      4159 8285 4155 8280 4149 8289 4149 8296
      4146 8299 4146 8304 4148 8308
TIME...MOT...LOC 0232Z 223DEG 14KT 4149 8300

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH

26

Special weather statement, Oct 8, 10:49 PM EDT, 3 hours 7 minutes before

Special Weather Statement
National Weather Service Cleveland OH
1049 PM EDT Fri Oct 8 2021

OHZ003-006-017-091300-
Lucas-Wood-Hancock-
Including the cities of Toledo, Bowling Green, Perrysburg,
and Findlay
1049 PM EDT Fri Oct 8 2021

...Patchy to Areas of Dense Fog into Saturday Morning...

Patchy to areas of fog may impact travel across the region into
Saturday morning. The most concentrated fog will be located in
river valleys where it will be dense in spots. Motorists may
encounter fluctuating visibilities ranging from good to poor in
short distances. The fog is expected to lift by mid to late
morning.

If driving, slow down, use your low beam headlights, and leave
plenty of distance ahead of you.

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 8, 8:15 PM EDT	Special Marine Warning	CLE		60 min
Oct 8, 8:38 PM EDT	Special Weather Statement	CLE	Ottawa	52 min
Oct 8, 9:41 PM EDT	Special Weather Statement	CLE	Sandusky	49 min
Oct 8, 9:43 PM EDT	Special Marine Warning	CLE		92 min
Oct 8, 9:54 PM EDT	Severe Thunderstorm Warning	CLE	Sandusky	36 min
Oct 8, 10:32 PM EDT	Special Weather Statement	CLE	Ottawa	28 min
Oct 9, 2:16 AM EDT	Areal Flood Advisory	CLE	Geauga, Lake	4 hr
Oct 9, 4:12 AM EDT	Areal Flood Advisory	CLE	Portage, Stark, Summit	5 hr
Oct 9, 4:19 AM EDT	Flash Flood Warning	CLE	Ashtabula, Geauga, Portage, Trumbull	4 hr
Oct 9, 8:44 AM EDT	Areal Flood Warning	CLE	Ashtabula, Geauga, Portage, Trumbull	3 hr
Oct 9, 10:11 AM EDT	River Flood Warning	CLE	Trumbull	35 hr

Nearby

Areal Flood Advisories in Ohio, 2021 Areal Flood Advisories in Pennsylvania, 2021 Every 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.