Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 178, NWS Cleveland, OH

September 7, 2012Crawford County, Huron County, Seneca County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Sep 7, 2012, 3:44 PM EDT for Crawford County, Huron County, Seneca County, Ohio. It was in force for 19 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
Sep 7, 2012, 3:44 PM EDT (19:44 UTC)
Expired
Sep 7, 2012, 4:03 PM EDT
In force
19 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon

Counties Crawford County, OH, Huron County, OH, Seneca County, OH

The radar

The Cleveland radar (KCLE), 87 km from the middle of the area, began a volume at 19:44 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.

IssuedProductOfficeLasted
Sep 7, 11:36 AM EDTSevere Thunderstorm WatchSPC6 hr
Sep 7, 3:22 PM EDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 7.7 hours before the alert went out and 189 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-pSkew-T log-p diagram, Detroit, MI at 12:00Z on 2012-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 98 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 12:00Z on 2012-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
98 J/kg
Mixed-layer CIN
-304 J/kg
Mixed-layer LCL
1140 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
61 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.

128 
WUUS51 KCLE 071944
SVRCLE
OHC033-077-147-072045-
/O.NEW.KCLE.SV.W.0178.120907T1944Z-120907T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
344 PM EDT FRI SEP 7 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN CRAWFORD COUNTY IN NORTH CENTRAL OHIO
  WESTERN HURON COUNTY IN NORTH CENTRAL OHIO
  EASTERN SENECA COUNTY IN NORTHWEST OHIO

* UNTIL 445 PM EDT

* AT 339 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 9 MILES
  SOUTHEAST OF NORWALK...AND MOVING NORTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
WILLARD...PLYMOUTH...NORWALK AND NEW WASHINGTON

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 4087 8300 4097 8293 4126 8296 4126 8286
      4125 8285 4126 8284 4127 8253 4100 8249
      4099 8272 4094 8272
TIME...MOT...LOC 1944Z 247DEG 30KT 4114 8248

$$

MAYERS
1 follow-up statement
798 
WWUS51 KCLE 072003
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
403 PM EDT FRI SEP 7 2012

OHC033-077-147-072013-
/O.CAN.KCLE.SV.W.0178.000000T0000Z-120907T2045Z/
CRAWFORD OH-HURON OH-SENECA OH-
403 PM EDT FRI SEP 7 2012

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN HURON AND NORTHEASTERN
CRAWFORD COUNTIES IN NORTH CENTRAL OHIO...AND EASTERN SENECA COUNTY
IN NORTHWEST OHIO IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM EDT FRIDAY
EVENING FOR NORTHWESTERN OHIO. A SEVERE THUNDERSTORM WATCH ALSO
REMAINS IN EFFECT UNTIL 900 PM EDT FRIDAY EVENING FOR NORTHEASTERN
OHIO AND NORTHWEST PENNSYLVANIA.

LAT...LON 4087 8300 4097 8293 4126 8296 4126 8286
      4125 8285 4126 8284 4127 8253 4100 8249
      4099 8272 4094 8272
TIME...MOT...LOC 2003Z 247DEG 30KT 4120 8228

$$

MAYERS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 2:12 PM EDTSevere Thunderstorm WarningCLECuyahoga, Medina, Summit48 min
Sep 7, 2:17 PM EDTSevere Thunderstorm WarningCLEHancock, Wood58 min
Sep 7, 2:51 PM EDTSevere Thunderstorm WarningCLECrawford, Huron, Seneca54 min
Sep 7, 3:13 PM EDTSevere Thunderstorm WarningCLECrawford, Marion, Wyandot62 min
Sep 7, 3:18 PM EDTSevere Thunderstorm WarningCLEErie, Huron57 min
Sep 7, 3:28 PM EDTSpecial Marine WarningCLE77 min
Sep 7, 4:26 PM EDTGale WarningCLE23 hr
Sep 7, 4:29 PM EDTSevere Thunderstorm WarningCLESummit46 min
Sep 7, 4:46 PM EDTSevere Thunderstorm WarningCLEMedina29 min
Sep 7, 4:49 PM EDTSevere Thunderstorm WarningCLEPortage56 min
Sep 7, 5:52 PM EDTSevere Thunderstorm WarningCLEMahoning, Portage, Stark, Trumbull53 min
Sep 7, 6:26 PM EDTAreal Flood AdvisoryCLEMahoning, Trumbull81 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2012Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.