Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 8, NWS Cleveland, OH

March 15, 2012Ottawa County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Mar 15, 2012, 3:16 AM EDT for Ottawa County, Ohio. It was in force for 44 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: Mar 15, 2012, 3:16 AM EDT (07:16 UTC)
Expired: Mar 15, 2012, 4:00 AM EDT
In force: 44 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

County Ottawa County, OH

The radar

The Cleveland radar (KCLE), 117 km from the middle of the area, began a volume at 07:19 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
Mar 15, 3:20 AM EDT	HAIL 1	Genoa, OH

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

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 7.3 hours before the alert went out and 129 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: 142 J/kg
Mixed-layer CIN: -134 J/kg
Mixed-layer LCL: 2055 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 133 m²/s²
0-3 km storm-relative helicity: 248 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

606 
WUUS51 KCLE 150716
SVRCLE
OHC123-150800-
/O.NEW.KCLE.SV.W.0008.120315T0716Z-120315T0800Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
316 AM EDT THU MAR 15 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN OTTAWA COUNTY IN NORTHWEST OHIO

* UNTIL 400 AM EDT

* AT 315 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED NEAR GENOA...AND MOVING NORTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  OAK HARBOR...

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 4161 8341 4162 8334 4162 8316 4163 8314
      4162 8309 4158 8304 4152 8302 4147 8333
      4150 8334 4150 8341
TIME...MOT...LOC 0716Z 234DEG 21KT 4152 8336

$$

MULLEN

1 follow-up statement

628 
WWUS51 KCLE 150737
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
337 AM EDT THU MAR 15 2012

OHC123-150800-
/O.CON.KCLE.SV.W.0008.000000T0000Z-120315T0800Z/
OTTAWA OH-
337 AM EDT THU MAR 15 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM EDT
FOR WESTERN OTTAWA COUNTY...

AT 324 AM...SPOTTERS REPORTED QUARTER SIZE HAIL IN GENOA.

AT 332 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL. THIS STORM WAS LOCATED NEAR ROCKY RIDGE...OR 6 MILES NORTH OF
ELMORE...MOVING NORTHEAST AT 25 MPH.

ANOTHER STRONG THUNDERSTORM WAS OBSERVED IN WOOD COUNTY MOVING 
NORTHEAST AT 25 MPH. THIS MAY ALSO BECOME SEVERE AND MAY PRODUCE A 
SECOND ROUND OF LARGE HAIL FOR LOCATIONS IN AND NEAR GENOA. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING LARGE DAMAGING HAIL. THIS IS AN
EXTREMELY DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 4161 8341 4162 8334 4162 8316 4163 8314
      4162 8309 4158 8304 4152 8302 4147 8333
      4150 8334 4150 8341
TIME...MOT...LOC 0735Z 235DEG 20KT 4157 8325

$$

MULLEN

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 15, 3:10 AM EDT	Severe Thunderstorm Warning	CLE	Hancock	50 min
Mar 15, 3:47 AM EDT	Severe Thunderstorm Warning	CLE	Ottawa, Sandusky	43 min
Mar 15, 4:06 AM EDT	Severe Thunderstorm Warning	CLE	Ashland, Richland	54 min
Mar 15, 4:25 AM EDT	Severe Thunderstorm Warning	CLE	Erie, Huron	50 min
Mar 15, 4:29 AM EDT	Severe Thunderstorm Warning	CLE	Knox	46 min
Mar 15, 5:02 AM EDT	Severe Thunderstorm Warning	CLE	Lorain, Medina	73 min
Mar 15, 5:46 AM EDT	Severe Thunderstorm Warning	CLE	Knox	44 min
Mar 15, 6:05 AM EDT	Areal Flood Advisory	CLE	Ashland, Knox, Richland	4 hr
Mar 15, 7:51 AM EDT	Areal Flood Warning	CLE	Ashland, Knox, Richland	6 hr
Mar 15, 8:22 AM EDT	Special Marine Warning	CLE		83 min
Mar 15, 8:26 AM EDT	Severe Thunderstorm Warning	CLE	Crawford, Marion, Wyandot	38 min
Mar 15, 9:52 AM EDT	Severe Thunderstorm Warning	CLE	Wood	17 min
Mar 15, 4:46 PM EDT	Severe Thunderstorm Warning	CLE	Ashland, Wayne	29 min
Mar 15, 5:56 PM EDT	Special Marine Warning	CLE		2 hr
Mar 15, 7:16 PM EDT	Severe Thunderstorm Warning	CLE	Lucas	25 min
Mar 15, 7:57 PM EDT	Special Marine Warning	CLE		2 hr

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.