Alert archive / Ohio / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 6, NWS Cleveland, OH

April 4, 2011Geauga County, Lake County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Apr 4, 2011, 8:45 AM EDT for Geauga County, Lake 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: Apr 4, 2011, 8:45 AM EDT (12:45 UTC)
Expired: Apr 4, 2011, 9:15 AM EDT
In force: 30 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

Counties Geauga County, OH, Lake County, OH

The radar

The Cleveland radar (KCLE), 50 km from the middle of the area, began a volume at 12:48 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 4, 8:55 AM EDT	TSTM WND DMG	3 S Perry, OH	WIND DAMAGED A GREENHOUSE.
Apr 4, 8:55 AM EDT	TSTM WND DMG	5 Ene Chardon, OH	A FEW TREES DOWN.

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

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 0.8 hours before the alert went out and 163 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: 1672 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 487 m²/s²
0-3 km storm-relative helicity: 719 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

921 
WUUS51 KCLE 041245
SVRCLE
OHC055-085-041315-
/O.NEW.KCLE.SV.W.0006.110404T1245Z-110404T1315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
845 AM EDT MON APR 4 2011

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GEAUGA COUNTY IN NORTHEAST OHIO
  LAKE COUNTY IN NORTHEAST OHIO

* UNTIL 915 AM EDT

* AT 839 AM 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 CLEVELAND MOVING EAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CHARDON...
  PAINESVILLE...
  BURTON...
  MADISON...

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 4181 8100 4148 8100 4140 8138 4142 8138
      4143 8136 4144 8138 4156 8138 4157 8147
      4164 8148 4165 8147
TIME...MOT...LOC 1244Z 254DEG 85KT 4154 8138

$$

KOSARIK

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 4, 6:38 AM EDT	Special Marine Warning	CLE		112 min
Apr 4, 8:09 AM EDT	Special Marine Warning	CLE		81 min
Apr 4, 8:32 AM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga	23 min
Apr 4, 8:44 AM EDT	Special Marine Warning	CLE		61 min
Apr 4, 9:03 AM EDT	Severe Thunderstorm Warning	CLE	Ashtabula	26 min
Apr 4, 9:10 AM EDT	Severe Thunderstorm Warning	CLE	Geauga, Lake	19 min
Apr 4, 4:12 PM EDT	Areal Flood Advisory	CLE	Ashland, Crawford, Marion, Morrow, Richland, Wyandot	4 hr
Apr 4, 5:01 PM EDT	Areal Flood Advisory	CLE	Cuyahoga, Lorain, Medina	4 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.