Alert archive / Ohio / Special Weather Statements in 2017

Special Weather Statement, NWS Cleveland, OH

April 30, 2017Mahoning County, Ohio

NWS Cleveland, OH issued this special weather statement at Apr 30, 2017, 3:53 PM EDT for Mahoning County, Ohio. It was in force for 67 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 30, 2017, 3:53 PM EDT (19:53 UTC)
Expired: Apr 30, 2017, 5:00 PM EDT
In force: 67 min
Issued by: NWS Cleveland, OH

County Mahoning County, OH

The radar

The Pittsburgh radar (KPBZ), 75 km from the middle of the area, began a volume at 19:55 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 (KAGC), launched 12:00Z, 7.9 hours before the alert went out and 92 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: 9 J/kg
Mixed-layer CIN: -263 J/kg
Mixed-layer LCL: 1041 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 209 m²/s²
0-3 km storm-relative helicity: 232 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Apr 30, 3:46 PM EDT, 7 minutes earlier.

Area forecast discussion, Apr 30, 3:46 PM EDT, 7 minutes before

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<body>
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      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Apr 30, 4:45 AM EDT, 11 hours 8 minutes before

Hazardous Weather Outlook
National Weather Service Cleveland OH
445 AM EDT Sun Apr 30 2017

OHZ003-006>014-017>023-027>033-036>038-047-089-PAZ001>003-010845-
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-
445 AM EDT Sun Apr 30 2017

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

.DAY ONE...Today and Tonight.

There is a slight risk for severe thunderstorms late this afternoon
through this evening across northwest Ohio, and a marginal risk
across north central and northeast Ohio tonight.

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

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

LEZ061-142>149-162>169-010845-
Lake Erie open waters from Ripley to Buffalo NY-
Lake Erie nearshore waters from Maumee Bay to Reno Beach OH-
Lake Erie nearshore waters from Reno Beach to The Islands OH-
Lake Erie nearshore waters from The Islands to Vermilion OH-
Lake Erie nearshore waters from Vermilion to Avon Point OH-
Lake Erie nearshore waters from Avon Point to Willowick OH-
Lake Erie nearshore waters from Willowick to Geneva-on-the Lake OH-
Lake Erie nearshore waters from Geneva-on-the-Lake to Conneaut OH-
Lake Erie nearshore waters from Conneaut OH to Ripley NY-
Lake Erie open waters from Maumee Bay to Reno Beach OH-
Lake Erie open waters from Reno Beach to The Islands OH-
Lake Erie open waters from The Islands to Vermilion OH-
Lake Erie open waters from Vermilion to Avon Point OH-
Lake Erie open waters from Avon Point to Willowick OH-
Lake Erie open waters from Willowick to Geneva-on-the-Lake OH-
Lake Erie open waters from Geneva-on-the-Lake to Conneaut OH-
Lake Erie open waters from Conneaut OH to Ripley NY-
445 AM EDT Sun Apr 30 2017

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.

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, Apr 30, 3:53 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Cleveland OH
353 PM EDT SUN APR 30 2017

OHZ023-033-302100-
Mahoning-Trumbull-
353 PM EDT SUN APR 30 2017

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT MAHONING AND
SOUTHEASTERN TRUMBULL COUNTIES...

At 352 PM EDT, strong thunderstorms were clustered over Boardman, or
7 miles north of Columbiana, moving northeast at 35 mph.

Wind gusts up to 50 mph and half inch hail are possible with these
storms.

Locations impacted include...
Youngstown, Warren, Salem, Columbiana, Boardman, Niles, Campbell,
Hubbard, Canfield, Cortland, Sebring, Lordstown, Vienna Center,
Hilltop, Maplewood Park, Austintown, Struthers, Girard, Vienna and
McDonald.

Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 4114 8099 4145 8052 4090 8052 4090 8082
      4093 8083 4093 8089 4090 8090 4090 8100
      4091 8101
TIME...MOT...LOC 1952Z 217DEG 30KT 4099 8067

Mottice

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 4:54 PM EDT	Special Weather Statement	CLE	Ashtabula	51 min
Apr 30, 5:35 PM EDT	Special Weather Statement	CLE	Wood	40 min
Apr 30, 5:48 PM EDT	Special Weather Statement	CLE	Hancock	57 min
Apr 30, 5:55 PM EDT	Severe Thunderstorm Warning	CLE	Sandusky, Wood	50 min
Apr 30, 5:58 PM EDT	Severe Thunderstorm Warning	CLE	Hancock	32 min
Apr 30, 6:23 PM EDT	Severe Thunderstorm Warning	CLE	Seneca, Wyandot	52 min
Apr 30, 6:27 PM EDT	Special Marine Warning	CLE		93 min
Apr 30, 6:59 PM EDT	Special Weather Statement	CLE	Huron	61 min
Apr 30, 7:27 PM EDT	Special Weather Statement	CLE	Erie, Lorain	48 min
Apr 30, 4:28 PM EDT	Special Weather Statement	CLE	Crawford	62 min
Apr 30, 4:41 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	35 min

Nearby

Special Weather Statements in Ohio, 2017 Every special weather statement in 2017

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.