Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 4, NWS Cleveland, OH

January 17, 2012Ashtabula County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Jan 17, 2012, 4:32 PM EST for Ashtabula County, Ohio. It was in force for 43 min. 2 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
Jan 17, 2012, 4:32 PM EST (21:32 UTC)
Expired
Jan 17, 2012, 5:15 PM EST
In force
43 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon

County Ashtabula County, OH

The radar

The Cleveland radar (KCLE), 105 km from the middle of the area, began a volume at 21:33 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

TimeReportWhereRemark
Jan 17, 4:53 PM ESTTSTM WND GST 0Conneaut, OH65 MPH
Jan 17, 5:06 PM ESTTSTM WND GST 59Ashtabula, OHASHTABULA COUNTY AIRPORT NEAR JEFFERSON.

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

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 9.5 hours before the alert went out and 167 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, Pittsburgh, PA at 12:00Z on 2012-01-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Pittsburgh, PA at 12:00Z on 2012-01-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 565 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
597 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
565 m²/s²
0-3 km storm-relative helicity
544 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.

928 
WUUS51 KCLE 172132
SVRCLE
OHC007-172215-
/O.NEW.KCLE.SV.W.0004.120117T2132Z-120117T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
432 PM EST TUE JAN 17 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ASHTABULA COUNTY IN NORTHEAST OHIO

* UNTIL 515 PM EST

* AT 429 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
A   SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN 
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR   GENEVA...AND MOVING 
EAST AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  JEFFERSON...
  ASHTABULA...
  NORTH KINGSVILLE...
  ANDOVER...
  CONNEAUT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4186 8052 4150 8052 4150 8100 4186 8101
      4188 8091 4191 8082 4193 8074 4193 8072
      4194 8070 4198 8052
TIME...MOT...LOC 2132Z 264DEG 50KT 4177 8094

$$

LAPLANTE

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 17, 4:23 AM ESTGale WarningCLE24 hr
Jan 17, 2:52 PM ESTSevere Thunderstorm WarningCLEErie23 min
Jan 17, 3:12 PM ESTWind AdvisoryCLEAshtabula, Cuyahoga, Lake7 hr
Jan 17, 4:13 PM ESTSevere Thunderstorm WarningCLEGeauga, Lake47 min
Jan 17, 4:26 PM ESTSevere Thunderstorm WarningCLECuyahoga, Geauga, Portage, Summit49 min
Jan 17, 5:01 PM ESTSevere Thunderstorm WarningCLEAshtabula, Mahoning, Portage, Trumbull59 min
Jan 17, 5:04 PM ESTRiver Flood WarningCLELorain15 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.