Alert archive / Ohio / Tornado Warnings in 2018

Tornado Warning 1, NWS Cleveland, OH

April 15, 2018Portage County, Stark County, Summit County, Ohio

NWS Cleveland, OH issued this tornado warning at Apr 15, 2018, 6:29 PM EDT for Portage County, Stark County, Summit County, Ohio. It was in force for 46 min. 1 report 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: Apr 15, 2018, 6:29 PM EDT (22:29 UTC)
Expired: Apr 15, 2018, 7:15 PM EDT
In force: 46 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Portage County, OH, Stark County, OH, Summit County, OH

The radar

The Cleveland radar (KCLE), 69 km from the middle of the area, began a volume at 22:29 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
Apr 15, 6:33 PM EDT	TSTM WND DMG	1 Sw Twinsburg, OH	DAMAGE REPORTED TO A BUILDING AT SR 82 AND CHAMBERLIN ROAD.

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

The nearest sounding before it

Pittsburgh, PA (KAGC), launched 12:00Z, 10.5 hours before the alert went out and 118 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 956 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 279 m²/s²
0-3 km storm-relative helicity: 326 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

819 
WFUS51 KCLE 152229
TORCLE
OHC133-151-153-152315-
/O.NEW.KCLE.TO.W.0001.180415T2229Z-180415T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Cleveland OH
629 PM EDT SUN APR 15 2018

The National Weather Service in Cleveland has issued a

* Tornado Warning for...
  Portage County in northeastern Ohio...
  Stark County in northeastern Ohio...
  Eastern Summit County in northeastern Ohio...

* Until 715 PM EDT
    
* At 627 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Cuyahoga Falls, or near Akron, moving northeast 
  at 25 mph. Additional storms located along the line in Stark 
  County were also capable of producing a tornado.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This dangerous storm will be near...
  Kent, Hudson and Twinsburg around 640 PM EDT. 
  Streetsboro around 650 PM EDT. 
  Ravenna around 655 PM EDT. 
  Mantua around 700 PM EDT. 
  Garrettsville around 715 PM EDT. 

Other locations impacted by this tornadic thunderstorm include
Greentown, Brimfield, Brady Lake, Windham, Atwater, Stow, Aurora,
Robertsville, Perry Heights and Sugar Bush Knolls.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4066 8144 4067 8146 4128 8158 4129 8157
      4135 8159 4135 8101 4099 8100 4099 8109
      4073 8109 4072 8123 4070 8124
TIME...MOT...LOC 2227Z 237DEG 23KT 4116 8147 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Clark

2 follow-up statements

010 
WWUS51 KCLE 152259
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
659 PM EDT SUN APR 15 2018

OHC153-152308-
/O.CAN.KCLE.TO.W.0001.000000T0000Z-180415T2315Z/
Summit OH-
659 PM EDT SUN APR 15 2018

...THE TORNADO WARNING FOR EASTERN SUMMIT COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 4073 8130 4090 8132 4111 8133 4128 8134
      4135 8133 4135 8101 4099 8100 4099 8109
      4073 8109 4072 8123 4070 8124
TIME...MOT...LOC 2258Z 233DEG 23KT 4129 8126 

$$

OHC133-151-152315-
/O.CON.KCLE.TO.W.0001.000000T0000Z-180415T2315Z/
Portage OH-Stark OH-
659 PM EDT SUN APR 15 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM EDT FOR PORTAGE
AND EASTERN STARK COUNTIES...
    
At 658 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Mantua, or 9 miles north of Ravenna, moving
northeast at 25 mph. 

HAZARD...Tornado. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This dangerous storm will be near...
  Garrettsville around 715 PM EDT. 

Other locations impacted by this tornadic thunderstorm include Brady
Lake, East Canton, Windham, Atwater, Edinburg, Wayland, Limaville,
Robertsville, Maximo and Hiram.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4073 8130 4090 8132 4111 8133 4128 8134
      4135 8133 4135 8101 4099 8100 4099 8109
      4073 8109 4072 8123 4070 8124
TIME...MOT...LOC 2258Z 233DEG 23KT 4129 8126 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Clark

211 
WWUS51 KCLE 152316
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
716 PM EDT SUN APR 15 2018

OHC133-151-152325-
/O.EXP.KCLE.TO.W.0001.000000T0000Z-180415T2315Z/
Portage OH-Stark OH-
716 PM EDT SUN APR 15 2018

...THE TORNADO WARNING FOR PORTAGE AND EASTERN STARK COUNTIES HAS
EXPIRED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been allowed to expire.

LAT...LON 4073 8130 4090 8132 4111 8133 4128 8134
      4135 8133 4135 8101 4099 8100 4099 8109
      4073 8109 4072 8123 4070 8124
TIME...MOT...LOC 2315Z 237DEG 23KT 4135 8115 

$$

Clark

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 15, 3:25 PM EDT	Flood Watch	CLE	Mahoning, Portage, Stark, Trumbull	13 hr
Apr 15, 4:27 PM EDT	Small Craft Advisory	CLE		64 hr
Apr 15, 5:38 PM EDT	River Flood Warning	CLE	Sandusky, Wood	37 hr
Apr 15, 5:38 PM EDT	River Flood Warning	CLE	Lorain	46 hr
Apr 15, 5:38 PM EDT	River Flood Warning	CLE	Holmes, Wayne	6 days
Apr 15, 5:38 PM EDT	River Flood Warning	CLE	Stark	21 hr
Apr 15, 6:22 PM EDT	Areal Flood Warning	CLE	Cuyahoga, Holmes, Medina, Stark, Summit, Wayne	6 hr
Apr 15, 7:32 PM EDT	Areal Flood Advisory	CLE	Geauga, Lake, Portage	6 hr

Nearby

Tornado Warnings in Ohio, 2018 Every tornado warning in 2018 Tornadoes in 2018

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.