Alert archive / Ohio / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 63, NWS Cleveland, OH

September 4, 2018Ashtabula County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Sep 4, 2018, 3:02 PM EDT for Ashtabula County, Ohio. It was in force for 30 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: Sep 4, 2018, 3:02 PM EDT (19:02 UTC)
Expired: Sep 4, 2018, 3:32 PM EDT
In force: 30 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Ashtabula County, OH

The radar

The Cleveland radar (KCLE), 105 km from the middle of the area, began a volume at 19:05 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
Sep 4, 3:14 PM EDT	TSTM WND DMG	5 W Jefferson, OH	ASHTABULA COUNTY SHERIFF DISPATCH REPORTED ONE TREE DOWN ON WIRES NEAR THE INTERSECTION OF TOTE ROAD AND ASEGRA DRIVE.
Sep 4, 3:18 PM EDT	TSTM WND DMG	5 Wnw Jefferson, OH	A MEMBER OF THE PUBLIC REPORTED A TREE DOWN OFF LAMPSON ROAD, NEAR SR 45, SOUTH OF AUSTINBURG.

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, 7.0 hours before the alert went out and 164 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: 735 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 1199 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 29 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

961 
WUUS51 KCLE 041902
SVRCLE
OHC007-041945-
/O.NEW.KCLE.SV.W.0063.180904T1902Z-180904T1945Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cleveland OH
302 PM EDT TUE SEP 4 2018

The National Weather Service in Cleveland has issued a

* Severe Thunderstorm Warning for...
  Central Ashtabula County in northeastern Ohio...

* Until 345 PM EDT.

* At 302 PM EDT, a severe thunderstorm was located near Geneva, or 10
  miles south of Geneva-On-The-Lake, moving northeast at 15 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and power lines.

* Locations impacted include...
  Ashtabula, Conneaut, Geneva, North Kingsville, Austinburg,
  Kingsville, Roaming Shores, Pierpont, Rock Creek, Edgewood,
  Kelloggsville and Plymouth Center.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4181 8052 4173 8052 4160 8089 4174 8101
      4176 8100 4194 8072 4196 8066 4196 8064
TIME...MOT...LOC 1902Z 236DEG 14KT 4172 8088 

HAIL...0.75IN
WIND...60MPH
 
$$

King

2 follow-up statements

992 
WWUS51 KCLE 041919
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
319 PM EDT TUE SEP 4 2018

OHC007-041945-
/O.CON.KCLE.SV.W.0063.000000T0000Z-180904T1945Z/
Ashtabula OH-
319 PM EDT TUE SEP 4 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR CENTRAL ASHTABULA COUNTY...

At 319 PM EDT, a severe thunderstorm was located near Geneva, or 9
miles southeast of Geneva-On-The-Lake, moving northeast at 10 mph.

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

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and power lines.

Locations impacted include...
Ashtabula, Geneva, Austinburg, Roaming Shores, Rock Creek, Edgewood
and Plymouth Center.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4181 8064 4171 8063 4162 8087 4177 8097
      4186 8084 4191 8076
TIME...MOT...LOC 1919Z 227DEG 8KT 4173 8088 

HAIL...0.75IN
WIND...60MPH
 
$$

King

317 
WWUS51 KCLE 041932
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
332 PM EDT TUE SEP 4 2018

OHC007-041941-
/O.CAN.KCLE.SV.W.0063.000000T0000Z-180904T1945Z/
Ashtabula OH-
332 PM EDT TUE SEP 4 2018

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL ASHTABULA COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe 
limits. Therefore, the warning has been cancelled.  However heavy 
rain and localized flooding are still possible with this slow 
moving thunderstorm.

LAT...LON 4181 8064 4171 8063 4162 8087 4177 8097
      4186 8084 4191 8076
TIME...MOT...LOC 1930Z 236DEG 14KT 4176 8083 

$$

King

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 4, 2:17 PM EDT	Special Weather Statement	CLE	Geauga	43 min
Sep 4, 2:56 PM EDT	Areal Flood Advisory	CLE	Cuyahoga	2 hr
Sep 4, 3:20 PM EDT	Areal Flood Advisory	CLE	Ashtabula	115 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2018 Every severe thunderstorm warning 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.