Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 107, NWS Cleveland, OH

July 4, 2012Hancock County, Marion County, Wyandot County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Jul 4, 2012, 8:50 PM EDT for Hancock County, Marion County, Wyandot County, Ohio. It was in force for 70 min. 3 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: Jul 4, 2012, 8:50 PM EDT (00:50 UTC)
Expired: Jul 4, 2012, 10:00 PM EDT
In force: 70 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

Counties Hancock County, OH, Marion County, OH, Wyandot County, OH

The radar

The Cincinnati radar (KILN), 147 km from the middle of the area, began a volume at 00:50 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
Jul 4, 9:15 PM EDT	TSTM WND DMG	Findlay, OH	TREES AND POWER POLES DOWN.
Jul 4, 9:23 PM EDT	TSTM WND DMG	Jenera, OH	A BARN ROOF WAS BLOWN OFF AN INTO AND ONTO STATE ROUTE 698.
Jul 4, 9:40 PM EDT	HAIL 1	Mount Blanchard, OH

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

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.8 hours before the alert went out and 145 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: 2070 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 1974 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.7

Open this sounding in Storm Lab

The text

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

378 
WUUS51 KCLE 050050
SVRCLE
OHC063-101-175-050200-
/O.NEW.KCLE.SV.W.0107.120705T0050Z-120705T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
850 PM EDT WED JUL 4 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MARION COUNTY IN NORTH CENTRAL OHIO
  HANCOCK COUNTY IN NORTHWEST OHIO
  SOUTHWESTERN WYANDOT COUNTY IN NORTHWEST OHIO

* UNTIL 1000 PM EDT

* AT 845 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 7 MILES NORTH OF RAWSON TO 6
  MILES NORTHEAST OF MORRAL...AND MOVING SOUTH AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MARION...
  RAWSON...
  MORRAL...
  ARLINGTON...
  MARSEILLES...
  WALDO...
  LA RUE...
  PROSPECT...

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 4110 8386 4111 8375 4077 8311 4070 8310
      4070 8301 4049 8298 4049 8301 4043 8303
      4043 8323 4045 8326 4050 8326 4051 8342
      4068 8343 4070 8350 4081 8351 4082 8387
TIME...MOT...LOC 0050Z 330DEG 24KT 4102 8379 4071 8310

$$

ADAMS

2 follow-up statements

962 
WWUS51 KCLE 050133
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
933 PM EDT WED JUL 4 2012

OHC063-101-175-050200-
/O.CON.KCLE.SV.W.0107.000000T0000Z-120705T0200Z/
WYANDOT OH-HANCOCK OH-MARION OH-
933 PM EDT WED JUL 4 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR MARION...SOUTHERN HANCOCK AND SOUTHWESTERN WYANDOT COUNTIES...

AT 926 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM JENERA TO WALDO...MOVING SOUTH AT
20 MPH.

LOCATIONS NEAR THE PATH OF SEVERE THUNDERSTORMS INCLUDE...WALDO...NEW
BLOOMINGTON...GREEN CAMP...LA RUE AND PROSPECT.

THESE STORMS HAVE HAD A HISTORY OF PRODUCING DAMAGING WINDS AND 
LARGE HAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. SEEK SHELTER INSIDE NOW AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4105 8385 4094 8347 4057 8299 4049 8298
      4049 8301 4043 8303 4043 8323 4045 8326
      4050 8326 4050 8340 4051 8342 4068 8343
      4070 8350 4081 8351 4082 8384
TIME...MOT...LOC 0132Z 005DEG 15KT 4083 8371 4044 8298

$$

ADAMS

797 
WWUS51 KCLE 050156
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
956 PM EDT WED JUL 4 2012

OHC063-101-175-050206-
/O.EXP.KCLE.SV.W.0107.000000T0000Z-120705T0200Z/
WYANDOT OH-HANCOCK OH-MARION OH-
956 PM EDT WED JUL 4 2012

...THE SEVERE THUNDERSTORM WARNING FOR MARION...SOUTHERN HANCOCK AND 
SOUTHWESTERN WYANDOT COUNTIES WILL BE ALLOWED TO EXPIRE AT 1000 PM 
EDT...

THE SEVERE STORMS ARE MOVING SOUTH OUT OF THE AREA.

LAT...LON 4105 8385 4094 8347 4057 8299 4049 8298
      4049 8301 4043 8303 4043 8323 4045 8326
      4050 8326 4050 8340 4051 8342 4068 8343
      4070 8350 4081 8351 4082 8384
TIME...MOT...LOC 0156Z 005DEG 15KT 4073 8372 4034 8299

$$

ADAMS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 8:03 PM EDT	Severe Thunderstorm Warning	CLE	Erie, Huron, Ottawa, Sandusky, Seneca	49 min
Jul 4, 8:08 PM EDT	Flash Flood Warning	CLE	Erie, Lucas, Ottawa, Sandusky	106 min
Jul 4, 9:08 PM EDT	Severe Thunderstorm Warning	CLE	Ashland, Richland	82 min
Jul 4, 9:14 PM EDT	Flash Flood Warning	CLE	Hancock, Marion, Wyandot	102 min
Jul 4, 9:20 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula, Geauga, Trumbull	55 min
Jul 4, 9:31 PM EDT	Severe Thunderstorm Warning	CLE	Medina, Portage, Summit	59 min
Jul 4, 9:50 PM EDT	Severe Thunderstorm Warning	CLE	Holmes, Knox	55 min
Jul 4, 9:57 PM EDT	Severe Thunderstorm Warning	CLE	Mahoning, Stark	63 min
Jul 4, 10:46 PM EDT	Severe Thunderstorm Warning	CLE	Knox	29 min
Jul 5, 3:45 AM EDT	Heat Advisory	CLE	Ashland, Crawford, Erie, Hancock, Holmes, Huron and 18 more	15 hr
Jul 5, 4:48 AM EDT	Special Marine Warning	CLE		117 min
Jul 5, 6:06 AM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga, Erie, Lorain, Ottawa, Sandusky	69 min
Jul 5, 6:36 AM EDT	Severe Thunderstorm Warning	CLE	Geauga, Lake	54 min
Jul 5, 6:41 AM EDT	Severe Thunderstorm Warning	CLE	Lorain, Medina, Summit	79 min
Jul 5, 6:49 AM EDT	Special Marine Warning	CLE		116 min
Jul 5, 6:53 AM EDT	Severe Thunderstorm Warning	CLE	Huron	43 min
Jul 5, 7:09 AM EDT	Severe Thunderstorm Warning	CLE	Ashland, Wayne	51 min
Jul 5, 7:12 AM EDT	Severe Thunderstorm Warning	CLE	Portage	63 min
Jul 5, 8:03 AM EDT	Areal Flood Advisory	CLE	Morrow	3 hr
Jul 5, 8:34 AM EDT	Flash Flood Warning	CLE	Morrow	6 hr
Jul 5, 8:41 AM EDT	Areal Flood Advisory	CLE	Ashland, Knox, Richland	5 hr
Jul 5, 3:19 PM EDT	Severe Thunderstorm Warning	CLE	Lucas, Wood	56 min
Jul 5, 3:28 PM EDT	Excessive Heat Warning	CLE	Ashland, Crawford, Erie, Hancock, Holmes, Huron and 15 more	30 hr
Jul 5, 3:28 PM EDT	Heat Advisory	CLE	Ashtabula, Cuyahoga, Geauga, Lake, Mahoning, Portage and 1 more	30 hr
Jul 5, 5:01 PM EDT	Severe Thunderstorm Warning	CLE	Hancock, Wyandot	59 min
Jul 5, 7:04 PM EDT	Severe Thunderstorm Warning	CLE	Marion	30 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.