Alert archive / Ohio / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 231, NWS Cleveland, OH

August 1, 2011Marion County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 1, 2011, 4:04 PM EDT for Marion County, Ohio. It was in force for 56 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 1, 2011, 4:04 PM EDT (20:04 UTC)
Expired: Aug 1, 2011, 5:00 PM EDT
In force: 56 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

County Marion County, OH

The radar

The Cincinnati radar (KILN), 140 km from the middle of the area, began a volume at 20:04 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.

The watch it was issued in

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

Issued	Product	Office	Lasted
Aug 1, 1:19 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.1 hours before the alert went out and 138 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: 117 J/kg
Mixed-layer CIN: -121 J/kg
Mixed-layer LCL: 1525 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

881 
WUUS51 KCLE 012004
SVRCLE
OHC101-012100-
/O.NEW.KCLE.SV.W.0231.110801T2004Z-110801T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
404 PM EDT MON AUG 1 2011

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MARION COUNTY IN NORTH CENTRAL OHIO

* UNTIL 500 PM EDT

* AT 400 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DESTRUCTIVE BASEBALL
  SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
  LOCATED 6 MILES NORTHWEST OF MORRAL...OR 5 MILES SOUTH OF UPPER
  SANDUSKY...AND WAS MOVING SOUTH AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MORRAL...
  LA RUE...
  MARION...
  PROSPECT...
  WALDO...

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 4044 8324 4050 8326 4050 8342 4069 8341
      4068 8330 4070 8329 4070 8286 4064 8286
      4065 8296 4050 8296 4049 8301 4043 8302
TIME...MOT...LOC 2003Z 345DEG 15KT 4074 8327

$$

DB

2 follow-up statements

534 
WWUS51 KCLE 012034
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
434 PM EDT MON AUG 1 2011

OHC101-012100-
/O.CON.KCLE.SV.W.0231.000000T0000Z-110801T2100Z/
MARION OH-
434 PM EDT MON AUG 1 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR MARION COUNTY...

AT 430 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DAMAGING
BASEBALL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS
STORM WAS LOCATED NEAR MARION...MOVING SOUTH AT 25 MPH.

LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...PROSPECT
AND WALDO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT MONDAY
EVENING FOR NORTHERN OHIO.

&&

LAT...LON 4044 8324 4050 8326 4050 8342 4069 8341
      4068 8330 4070 8329 4070 8286 4064 8286
      4065 8296 4050 8296 4049 8301 4043 8302
TIME...MOT...LOC 2034Z 340DEG 24KT 4055 8316

$$
MITCHELL

668 
WWUS51 KCLE 012104
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
504 PM EDT MON AUG 1 2011

OHC101-012112-
/O.EXP.KCLE.SV.W.0231.000000T0000Z-110801T2100Z/
MARION OH-
504 PM EDT MON AUG 1 2011

...THE SEVERE THUNDERSTORM WARNING FOR MARION COUNTY EXPIRED AT 500
PM EDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF
THE WARNED AREA...HOWEVER SMALL HAIL AND HEAVY RAIN ARE STILL
POSSIBLE WITH OTHER THUNDERSTORMS THIS EVENING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT MONDAY
EVENING FOR NORTHERN OHIO.

LAT...LON 4044 8324 4050 8326 4050 8342 4069 8341
      4068 8330 4070 8329 4070 8286 4064 8286
      4065 8296 4050 8296 4049 8301 4043 8302
TIME...MOT...LOC 2034Z 340DEG 24KT 4055 8316

$$
MITCHELL

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 1, 9:06 AM EDT	Special Marine Warning	CLE		84 min
Aug 1, 9:43 AM EDT	Severe Thunderstorm Warning	CLE	Lake	47 min
Aug 1, 10:10 AM EDT	Severe Thunderstorm Warning	CLE	Geauga	36 min
Aug 1, 10:54 AM EDT	Areal Flood Advisory	CLE	Lake	2 hr
Aug 1, 10:54 AM EDT	Special Marine Warning	CLE		96 min
Aug 1, 11:12 AM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga	63 min
Aug 1, 12:13 PM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga, Geauga	62 min
Aug 1, 12:16 PM EDT	Areal Flood Advisory	CLE	Cuyahoga	3 hr
Aug 1, 12:44 PM EDT	Severe Thunderstorm Warning	CLE	Portage	61 min
Aug 1, 12:51 PM EDT	Special Marine Warning	CLE		84 min
Aug 1, 1:04 PM EDT	Severe Thunderstorm Warning	CLE	Geauga, Lake	56 min
Aug 1, 1:19 PM EDT	Severe Thunderstorm Warning	CLE	Lucas, Ottawa, Wood	56 min
Aug 1, 1:32 PM EDT	Severe Thunderstorm Warning	CLE	Erie, Sandusky	58 min
Aug 1, 1:42 PM EDT	Severe Thunderstorm Warning	CLE	Wood	63 min
Aug 1, 1:53 PM EDT	Tornado Warning	CLE	Sandusky, Wood	37 min
Aug 1, 2:01 PM EDT	Special Marine Warning	CLE		44 min
Aug 1, 2:10 PM EDT	Severe Thunderstorm Warning	CLE	Lorain	54 min
Aug 1, 2:16 PM EDT	Severe Thunderstorm Warning	CLE	Medina, Portage, Summit, Wayne	44 min
Aug 1, 2:24 PM EDT	Severe Thunderstorm Warning	CLE	Seneca	66 min
Aug 1, 2:31 PM EDT	Severe Thunderstorm Warning	CLE	Medina	44 min
Aug 1, 2:37 PM EDT	Areal Flood Advisory	CLE	Ottawa, Sandusky, Seneca, Wood	4 hr
Aug 1, 2:57 PM EDT	Severe Thunderstorm Warning	CLE	Medina, Stark, Summit, Wayne	63 min
Aug 1, 3:09 PM EDT	Severe Thunderstorm Warning	CLE	Wyandot	66 min
Aug 1, 4:15 PM EDT	Severe Thunderstorm Warning	CLE	Wyandot	30 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.