Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 80, NWS Cleveland, OH

June 29, 2012Knox County, Richland County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Jun 29, 2012, 4:55 PM EDT for Knox County, Richland County, Ohio. It was in force for 61 min. 5 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: Jun 29, 2012, 4:55 PM EDT (20:55 UTC)
Expired: Jun 29, 2012, 5:56 PM EDT
In force: 61 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

Counties Knox County, OH, Richland County, OH

The radar

The Cleveland radar (KCLE), 106 km from the middle of the area, began a volume at 20:58 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
Jun 29, 5:17 PM EDT	TSTM WND GST 65	Lexington, OH
Jun 29, 5:18 PM EDT	TSTM WND GST 60	Lexington, OH	LARGE BRANCHES DOWN.
Jun 29, 5:20 PM EDT	TSTM WND DMG	1 E Butler, OH	10-12 INCH DIAMETER TREE LIMBS DOWN.
Jun 29, 5:20 PM EDT	TSTM WND DMG	Mount Vernon, OH	TREES DOWN ON MAIN STREET AND A UTILITY POLE DOWN.
Jun 29, 5:23 PM EDT	TSTM WND DMG	Bellville, OH	TREES DOWN.

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
Jun 29, 3:02 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.9 hours before the alert went out and 169 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: 3674 J/kg
Mixed-layer CIN: -139 J/kg
Mixed-layer LCL: 979 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: -59 m²/s²
0-3 km storm-relative helicity: -13 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 9.4

Open this sounding in Storm Lab

The text

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

818 
WUUS51 KCLE 292055
SVRCLE
OHC083-139-292215-
/O.NEW.KCLE.SV.W.0080.120629T2055Z-120629T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
455 PM EDT FRI JUN 29 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  KNOX COUNTY IN NORTH CENTRAL OHIO
  RICHLAND COUNTY IN NORTH CENTRAL OHIO

* UNTIL 615 PM EDT

* AT 453 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 80 MPH.  THESE STORMS
  WERE LOCATED ALONG A LINE EXTENDING FROM 21 MILES WEST OF SHELBY TO
  19 MILES WEST OF CENTERBURG...AND MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MOUNT VERNON...
  MANSFIELD...
  CENTERBURG...
  SHELBY...
  ONTARIO...
  LEXINGTON...
  FREDERICKTOWN...
  BELLVILLE...
  GAMBIER...
  DANVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS. SEEK SHELTER
NOW INSIDE A STURDY STRUCTURE 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 4027 8275 4035 8275 4035 8265 4055 8264
      4055 8262 4067 8265 4067 8262 4070 8262
      4071 8273 4099 8272 4099 8242 4082 8242
      4081 8239 4073 8238 4072 8234 4056 8234
      4057 8218 4023 8220
TIME...MOT...LOC 2055Z 269DEG 72KT 4096 8300 4025 8300

$$

BRAY

3 follow-up statements

335 
WWUS51 KCLE 292125
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
525 PM EDT FRI JUN 29 2012

OHC083-139-292215-
/O.CON.KCLE.SV.W.0080.000000T0000Z-120629T2215Z/
KNOX OH-RICHLAND OH-
525 PM EDT FRI JUN 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR RICHLAND AND KNOX COUNTIES...

AT 520 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DESTRUCTIVE WINDS IN EXCESS OF 75 MPH. THESE STORMS WERE LOCATED
ALONG A LINE EXTENDING FROM 11 MILES SOUTHWEST OF SHELBY TO 11 MILES
WEST OF FREDERICKTOWN TO 6 MILES SOUTHWEST OF CENTERBURG...MOVING
WEST AT 20 MPH.

TWO LARGE TREES WERE REPORTED DOWN IN LEXINGTON AT 521 PM EDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
FRIDAY EVENING FOR NORTHERN OHIO.

&&

LAT...LON 4027 8275 4035 8275 4035 8265 4055 8264
      4055 8262 4067 8265 4067 8262 4070 8262
      4071 8273 4099 8272 4099 8242 4082 8242
      4081 8239 4073 8238 4072 8234 4056 8234
      4057 8218 4023 8220
TIME...MOT...LOC 2125Z 085DEG 16KT 4081 8287 4053 8278
          4024 8281

$$

KUBINA

521 
WWUS51 KCLE 292140
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
540 PM EDT FRI JUN 29 2012

OHC083-139-292215-
/O.CON.KCLE.SV.W.0080.000000T0000Z-120629T2215Z/
KNOX OH-RICHLAND OH-
540 PM EDT FRI JUN 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SOUTHEASTERN RICHLAND AND EASTERN KNOX COUNTIES...

AT 538 PM EDT...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 75 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM LUCAS TO DANVILLE TO 8 MILES
SOUTHEAST OF MARTINSBURG...MOVING EAST AT 50 MPH.

LOCATIONS NEAR THE PATH OF SEVERE THUNDERSTORMS INCLUDE...GANN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
FRIDAY EVENING FOR NORTHERN OHIO.

&&

LAT...LON 4026 8247 4080 8257 4089 8242 4082 8242
      4081 8239 4073 8238 4072 8234 4056 8234
      4055 8219 4023 8220
TIME...MOT...LOC 2140Z 270DEG 16KT 4074 8233 4045 8224
          4017 8228

$$

KUBINA

033 
WWUS51 KCLE 292156
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
556 PM EDT FRI JUN 29 2012

OHC083-139-292207-
/O.CAN.KCLE.SV.W.0080.000000T0000Z-120629T2215Z/
KNOX OH-RICHLAND OH-
556 PM EDT FRI JUN 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN RICHLAND AND
EASTERN KNOX COUNTIES IS CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
FRIDAY EVENING FOR NORTHERN OHIO.

LAT...LON 4026 8247 4080 8257 4089 8242 4082 8242
      4081 8239 4073 8238 4072 8234 4056 8234
      4055 8219 4023 8220
TIME...MOT...LOC 2157Z 270DEG 16KT 4074 8223 4045 8214
          4017 8218

$$

KUBINA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 11:19 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula, Trumbull	56 min
Jun 29, 12:05 AM EDT	Severe Thunderstorm Warning	CLE	Ashtabula	55 min
Jun 29, 3:59 AM EDT	Heat Advisory	CLE	Ashland, Crawford, Cuyahoga, Erie, Hancock, Holmes and 19 more	11 hr
Jun 29, 3:49 PM EDT	Severe Thunderstorm Warning	CLE	Hancock, Wood	56 min
Jun 29, 4:19 PM EDT	Severe Thunderstorm Warning	CLE	Marion, Wyandot	56 min
Jun 29, 4:33 PM EDT	Severe Thunderstorm Warning	CLE	Seneca	43 min
Jun 29, 4:40 PM EDT	Severe Thunderstorm Warning	CLE	Hancock	16 min
Jun 29, 4:42 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Morrow	50 min
Jun 29, 5:08 PM EDT	Severe Thunderstorm Warning	CLE	Ashland	55 min
Jun 29, 5:20 PM EDT	Severe Thunderstorm Warning	CLE	Holmes	56 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.