Alert archive / Ohio / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 190, NWS Cleveland, OH

July 18, 2011Mahoning County, Portage County, Trumbull County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Jul 18, 2011, 4:30 PM EDT for Mahoning County, Portage County, Trumbull County, Ohio. It was in force for 60 min. 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 18, 2011, 4:30 PM EDT (20:30 UTC)
Expired: Jul 18, 2011, 5:30 PM EDT
In force: 60 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

Counties Mahoning County, OH, Portage County, OH, Trumbull County, OH

The radar

The Cleveland radar (KCLE), 77 km from the middle of the area, began a volume at 20:33 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 18, 4:38 PM EDT	HAIL 0.88	Mantua, OH	FEW LARGE LIMBS DOWN. ESTIMATED 50 MPH WINDS.
Jul 18, 4:41 PM EDT	HAIL 1	Mantua, OH
Jul 18, 4:47 PM EDT	TSTM WND GST 73	Mantua, OH

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 18, 3:57 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 8.5 hours before the alert went out and 109 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: 243 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 725 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 91 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

566 
WUUS51 KCLE 182030
SVRCLE
OHC099-133-155-182130-
/O.NEW.KCLE.SV.W.0190.110718T2030Z-110718T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
430 PM EDT MON JUL 18 2011

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN MAHONING COUNTY IN NORTHEAST OHIO
  PORTAGE COUNTY IN NORTHEAST OHIO
  SOUTHWESTERN TRUMBULL COUNTY IN NORTHEAST OHIO

* UNTIL 530 PM EDT

* AT 429 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED NEAR MANTUA...AND MOVING EAST AT
  30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  GARRETTSVILLE...
  NEWTON FALLS...
  SEBRING...
  LORDSTOWN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. SEEK SHELTER INSIDE NOW AND STAY AWAY FROM
WINDOWS.

&&

PLEASE REPORT HAIL AND STRONG WINDS TO THE NATIONAL WEATHER SERVICE
BY CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.

LAT...LON 4118 8080 4093 8080 4093 8090 4090 8090
      4091 8108 4099 8108 4099 8139 4117 8139
      4114 8131 4134 8122
TIME...MOT...LOC 2031Z 292DEG 26KT 4122 8126

$$

LOMBARDY

2 follow-up statements

675 
WWUS51 KCLE 182119
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
519 PM EDT MON JUL 18 2011

OHC099-133-155-182130-
/O.CON.KCLE.SV.W.0190.000000T0000Z-110718T2130Z/
MAHONING OH-PORTAGE OH-TRUMBULL OH-
519 PM EDT MON JUL 18 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR SOUTHWESTERN TRUMBULL...PORTAGE AND WESTERN MAHONING COUNTIES...

AT 518 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR LORDSTOWN...OR 10 MILES
SOUTH OF WARREN...MOVING EAST AT 30 MPH.

LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM INCLUDE....

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
MONDAY EVENING FOR NORTHERN OHIO AND NORTHWEST PENNSYLVANIA.

&&

LAT...LON 4118 8080 4093 8080 4093 8090 4090 8090
      4091 8108 4099 8108 4099 8139 4117 8139
      4114 8131 4134 8122
TIME...MOT...LOC 2119Z 292DEG 26KT 4109 8083

$$

FITZ

517 
WWUS51 KCLE 182130
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
530 PM EDT MON JUL 18 2011

OHC099-133-155-182140-
/O.EXP.KCLE.SV.W.0190.000000T0000Z-110718T2130Z/
MAHONING OH-PORTAGE OH-TRUMBULL OH-
530 PM EDT MON JUL 18 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN TRUMBULL...
PORTAGE AND WESTERN MAHONING COUNTIES EXPIRES AT 530 PM EDT...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
MONDAY EVENING FOR NORTHERN OHIO AND NORTHWEST PENNSYLVANIA.

LAT...LON 4118 8080 4093 8080 4093 8090 4090 8090
      4091 8108 4099 8108 4099 8139 4117 8139
      4114 8131 4134 8122
TIME...MOT...LOC 2119Z 292DEG 26KT 4109 8083

$$

FITZ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 12:17 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula	43 min
Jul 18, 12:50 PM EDT	Severe Thunderstorm Warning	CLE	Ottawa, Sandusky, Wood	55 min
Jul 18, 2:05 PM EDT	Severe Thunderstorm Warning	CLE	Sandusky, Seneca	40 min
Jul 18, 3:08 PM EDT	Severe Thunderstorm Warning	CLE	Lucas, Ottawa, Sandusky	67 min
Jul 18, 3:24 PM EDT	Special Marine Warning	CLE		2 hr
Jul 18, 3:43 PM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga, Geauga, Portage, Summit	62 min
Jul 18, 3:49 PM EDT	Areal Flood Advisory	CLE	Lucas, Ottawa, Sandusky, Wood	3 hr
Jul 18, 4:25 PM EDT	Severe Thunderstorm Warning	CLE	Lucas, Ottawa, Sandusky, Wood	65 min
Jul 18, 4:37 PM EDT	Severe Thunderstorm Warning	CLE	Hancock	53 min
Jul 18, 5:30 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Hancock, Seneca, Wyandot	60 min
Jul 18, 5:34 PM EDT	Special Marine Warning	CLE		86 min
Jul 18, 5:57 PM EDT	Severe Thunderstorm Warning	CLE	Ashland, Marion, Morrow, Richland	78 min
Jul 18, 6:28 PM EDT	Areal Flood Advisory	CLE	Hancock, Wood, Wyandot	3 hr

Nearby

Severe Thunderstorm Warnings in Ohio, 2011 Every severe thunderstorm 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.