Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 154, NWS Cleveland, OH

August 4, 2012Marion County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 4, 2012, 10:37 PM EDT for Marion County, Ohio. It was in force for 53 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: Aug 4, 2012, 10:37 PM EDT (02:37 UTC)
Expired: Aug 4, 2012, 11:30 PM EDT
In force: 53 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 02:38 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
Aug 4, 11:00 PM EDT	TSTM WND DMG	2 N Marion, OH	TREES DOWN IN FAIRPARK.

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
Aug 4, 7:50 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 2.6 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: 3062 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 842 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 124 m²/s²
0-3 km storm-relative helicity: 135 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.

708 
WUUS51 KCLE 050237
SVRCLE
OHC101-050330-
/O.NEW.KCLE.SV.W.0154.120805T0237Z-120805T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
1037 PM EDT SAT AUG 4 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

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

* UNTIL 1130 PM EDT

* AT 1034 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR LA
  RUE...AND MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MARION...
  MORRAL...
  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 4045 8325 4051 8325 4051 8341 4068 8343
      4069 8331 4070 8330 4070 8285 4065 8287
      4064 8296 4049 8296 4049 8301 4043 8302
TIME...MOT...LOC 0238Z 263DEG 38KT 4061 8329

$$

LAPLANTE

1 follow-up statement

161 
WWUS51 KCLE 050313
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
1113 PM EDT SAT AUG 4 2012

OHC101-050330-
/O.CON.KCLE.SV.W.0154.000000T0000Z-120805T0330Z/
MARION OH-
1113 PM EDT SAT AUG 4 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT
FOR MARION COUNTY...

AT 1110 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED
6 MILES EAST OF CALEDONIA...OR NEAR MOUNT GILEAD...MOVING EAST AT 45
MPH.

VERY STRONG WINDS IN EXCESS OF 60 MPH WILL IMPACT PROSPECT AND WALDO 
BY 1130 PM.

LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM INCLUDE....

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM EDT SUNDAY
MORNING FOR NORTHWESTERN OHIO.

&&

LAT...LON 4045 8325 4051 8325 4051 8341 4068 8343
      4069 8331 4070 8330 4070 8285 4065 8287
      4064 8296 4049 8296 4049 8301 4043 8302
TIME...MOT...LOC 0312Z 264DEG 39KT 4061 8283

$$

LOMBARDY

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 4, 8:09 PM EDT	Severe Thunderstorm Warning	CLE	Ottawa, Sandusky	55 min
Aug 4, 8:22 PM EDT	Special Marine Warning	CLE		113 min
Aug 4, 9:19 PM EDT	Severe Thunderstorm Warning	CLE	Hancock, Lucas, Wood	71 min
Aug 4, 10:00 PM EDT	Special Marine Warning	CLE		2 hr
Aug 4, 10:04 PM EDT	Severe Thunderstorm Warning	CLE	Ottawa, Sandusky, Seneca, Wyandot	71 min
Aug 4, 10:43 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie, Huron	62 min
Aug 4, 11:30 PM EDT	Severe Thunderstorm Warning	CLE	Ashland, Lorain, Medina	40 min
Aug 4, 11:44 PM EDT	Severe Thunderstorm Warning	CLE	Wayne	61 min
Aug 4, 11:50 PM EDT	Special Marine Warning	CLE		100 min
Aug 4, 11:51 PM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga	22 min
Aug 4, 11:56 PM EDT	Severe Thunderstorm Warning	CLE	Knox	47 min
Aug 5, 11:19 AM EDT	Special Marine Warning	CLE		86 min
Aug 5, 2:42 PM EDT	Tornado Warning	CLE	Trumbull	18 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2012 Every severe thunderstorm warning in 2012

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.