Alert archive / Ohio / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 15, NWS Cleveland, OH

June 21, 2021Ashtabula County, Geauga County, Trumbull County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Jun 21, 2021, 12:48 PM EDT for Ashtabula County, Geauga County, Trumbull County, Ohio. It was in force for 57 min. 2 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: Jun 21, 2021, 12:48 PM EDT (16:48 UTC)
Expired: Jun 21, 2021, 1:45 PM EDT
In force: 57 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Ashtabula County, OH, Geauga County, OH, Trumbull County, OH

The radar

The Cleveland radar (KCLE), 83 km from the middle of the area, began a volume at 16:52 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
Jun 21, 1:04 PM EDT	TSTM WND DMG	1 S Roaming Shores, OH	ROME ROCK CREEK ROAD CLOSED BETWEEN KETCHUM RD AND CALLENDER RD DUE TO MULTIPLE POLES SNAPPED, SOME ROADWAY FLOODING. TIME ESTIMATED FROM RADAR.
Jun 21, 1:25 PM EDT	HAIL 1.25	1 Wsw Andover, OH	HALF DOLLAR TO PING PONG HAIL.

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
Jun 21, 12:31 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 4.8 hours before the alert went out and 145 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: 931 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 988 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 260 m²/s²
0-3 km storm-relative helicity: 277 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

As transmitted.

367 
WUUS51 KCLE 211648
SVRCLE
OHC007-055-155-211745-
/O.NEW.KCLE.SV.W.0015.210621T1648Z-210621T1745Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cleveland OH
1248 PM EDT Mon Jun 21 2021

The National Weather Service in Cleveland has issued a

* Severe Thunderstorm Warning for...
  Northern Trumbull County in northeastern Ohio...
  Northeastern Geauga County in northeastern Ohio...
  Southern Ashtabula County in northeastern Ohio...

* Until 145 PM EDT.

* At 1248 PM EDT, a severe thunderstorm was located 7 miles northwest
  of Orwell, or 12 miles east of Chardon, moving east at 35 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Minor damage to vehicles is possible. Expect damage to 
           trees and power lines.

* Locations impacted include...
  Orwell, Andover, Huntsburg, Montville, Hartsgrove, Roaming Shores,
  Pierpont, Cherry Valley and Rock Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Large hail and damaging winds and continuous cloud to ground
lightning are occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 4146 8052 4147 8101 4148 8114 4164 8114
      4164 8111 4167 8110 4178 8052
TIME...MOT...LOC 1648Z 257DEG 29KT 4159 8097 

HAIL...1.00IN
WIND...60MPH
 
$$

Jaszka

2 follow-up statements

595 
WWUS51 KCLE 211659
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
1259 PM EDT Mon Jun 21 2021

OHC055-155-211708-
/O.CAN.KCLE.SV.W.0015.000000T0000Z-210621T1745Z/
Trumbull OH-Geauga OH-
1259 PM EDT Mon Jun 21 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN TRUMBULL AND
NORTHEASTERN GEAUGA COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
northeastern Ohio.

LAT...LON 4154 8098 4169 8098 4178 8052 4152 8052
TIME...MOT...LOC 1658Z 255DEG 29KT 4162 8083 

$$

OHC007-211745-
/O.CON.KCLE.SV.W.0015.000000T0000Z-210621T1745Z/
Ashtabula OH-
1259 PM EDT Mon Jun 21 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM EDT
FOR SOUTHERN ASHTABULA COUNTY...

At 1258 PM EDT, a severe thunderstorm was located near Orwell, or 17
miles south of Geneva-On-The-Lake, moving east at 35 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to vehicles is possible. Expect damage to 
         trees and power lines.

Locations impacted include...
Orwell, Andover, Hartsgrove, Roaming Shores, Pierpont, Cherry Valley
and Rock Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 4154 8098 4169 8098 4178 8052 4152 8052
TIME...MOT...LOC 1658Z 255DEG 29KT 4162 8083 

HAIL...1.00IN
WIND...60MPH
 
$$

Jaszka

348 
WWUS51 KCLE 211704
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
104 PM EDT Mon Jun 21 2021

OHC007-211745-
/O.CON.KCLE.SV.W.0015.000000T0000Z-210621T1745Z/
Ashtabula OH-
104 PM EDT Mon Jun 21 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM EDT
FOR SOUTHERN ASHTABULA COUNTY...

At 104 PM EDT, a severe thunderstorm was located 8 miles northeast of
Orwell, or 17 miles south of Ashtabula, moving east at 35 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to vehicles is possible. Expect damage to 
         trees and power lines.

Locations impacted include...
Orwell, Andover, Hartsgrove, Roaming Shores, Pierpont, Cherry Valley
and Rock Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 4154 8098 4169 8098 4178 8052 4152 8052
TIME...MOT...LOC 1704Z 257DEG 29KT 4163 8076 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

Kahn

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 8:59 PM EDT	Special Weather Statement	CLE	Lucas	16 min
Jun 20, 9:18 PM EDT	Special Marine Warning	CLE		70 min
Jun 20, 9:34 PM EDT	Special Weather Statement	CLE	Lucas	41 min
Jun 20, 10:02 PM EDT	Severe Thunderstorm Warning	CLE	Lucas, Wood	46 min
Jun 20, 10:44 PM EDT	Special Marine Warning	CLE		46 min
Jun 20, 10:54 PM EDT	Special Marine Warning	CLE		96 min
Jun 20, 11:03 PM EDT	Special Marine Warning	CLE		87 min
Jun 20, 11:52 PM EDT	Special Marine Warning	CLE		113 min
Jun 21, 12:18 AM EDT	Special Weather Statement	CLE	Lucas	42 min
Jun 21, 12:40 AM EDT	Special Weather Statement	CLE	Ottawa	50 min
Jun 21, 1:37 AM EDT	Special Marine Warning	CLE		113 min
Jun 21, 2:19 AM EDT	Special Marine Warning	CLE		116 min
Jun 21, 3:52 AM EDT	Severe Thunderstorm Warning	CLE	Lucas, Ottawa, Sandusky, Wood	68 min
Jun 21, 4:03 AM EDT	Special Marine Warning	CLE		86 min
Jun 21, 4:17 AM EDT	Special Weather Statement	CLE	Hancock, Wood	43 min
Jun 21, 4:57 AM EDT	Special Weather Statement	CLE	Erie, Hancock, Huron, Sandusky, Seneca, Wyandot	63 min
Jun 21, 5:05 AM EDT	Special Marine Warning	CLE		115 min
Jun 21, 5:17 AM EDT	Severe Thunderstorm Warning	CLE	Erie, Huron, Sandusky, Seneca	43 min
Jun 21, 5:38 AM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga, Lorain	67 min
Jun 21, 6:14 AM EDT	Special Marine Warning	CLE		2 hr
Jun 21, 6:26 AM EDT	Severe Thunderstorm Warning	CLE	Geauga, Lake	49 min
Jun 21, 6:29 AM EDT	Special Weather Statement	CLE	Ashland, Medina, Portage, Summit, Wayne	31 min
Jun 21, 6:43 AM EDT	Severe Thunderstorm Warning	CLE	Geauga, Portage, Summit	47 min
Jun 21, 6:51 AM EDT	Severe Thunderstorm Warning	CLE	Ashtabula, Trumbull	54 min
Jun 21, 7:02 AM EDT	Special Weather Statement	CLE	Stark	43 min
Jun 21, 7:31 AM EDT	Special Weather Statement	CLE	Mahoning	44 min
Jun 21, 9:52 AM EDT	Special Weather Statement	CLE	Stark	23 min
Jun 21, 10:12 AM EDT	Special Weather Statement	CLE	Mahoning	48 min
Jun 21, 11:47 AM EDT	Special Weather Statement	CLE	Cuyahoga	43 min
Jun 21, 11:51 AM EDT	Special Weather Statement	CLE	Ashland, Richland	39 min
Jun 21, 12:13 PM EDT	Special Weather Statement	CLE	Geauga, Lake	47 min
Jun 21, 12:17 PM EDT	Severe Thunderstorm Warning	CLE	Ashland, Holmes, Richland, Wayne	43 min
Jun 21, 12:43 PM EDT	Severe Thunderstorm Warning	CLE	Mahoning, Medina, Portage, Stark, Summit	47 min
Jun 21, 12:52 PM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga, Geauga, Lake	34 min
Jun 21, 1:09 PM EDT	Severe Thunderstorm Warning	CLE	Mahoning, Portage, Stark, Trumbull	54 min
Jun 21, 1:15 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula	60 min
Jun 21, 1:20 PM EDT	Areal Flood Advisory	CLE	Ashtabula	5 hr
Jun 21, 1:31 PM EDT	Severe Thunderstorm Warning	CLE	Stark	29 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2021 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.