Alert archive / Ohio / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 277, NWS Cleveland, OH

September 1, 2011Ashland County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Sep 1, 2011, 12:03 PM EDT for Ashland County, Ohio. It was in force for 42 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: Sep 1, 2011, 12:03 PM EDT (16:03 UTC)
Expired: Sep 1, 2011, 12:45 PM EDT
In force: 42 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

County Ashland County, OH

The radar

The Cleveland radar (KCLE), 86 km from the middle of the area, began a volume at 16:04 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
Sep 1, 12:30 PM EDT	TSTM WND DMG	1 S Hayesville, OH	THUNDERSTORM WINDS DOWNED SEVERAL LARGE TREES.

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, 4.1 hours before the alert went out and 184 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: 1046 J/kg
Mixed-layer CIN: -74 J/kg
Mixed-layer LCL: 932 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 199 m²/s²
0-3 km storm-relative helicity: 214 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 8.1

Open this sounding in Storm Lab

The text

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

638 
WUUS51 KCLE 011603
SVRCLE
OHC005-011645-
/O.NEW.KCLE.SV.W.0277.110901T1603Z-110901T1645Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
1203 PM EDT THU SEP 1 2011

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN ASHLAND COUNTY IN NORTH CENTRAL OHIO

* UNTIL 1245 PM EDT

* AT 1159 AM 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 NEAR
  HAYESVILLE...AND MOVING SOUTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LOUDONVILLE...

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 4069 8235 4071 8234 4079 8230 4078 8213
      4068 8213 4066 8215 4066 8222 4058 8222
TIME...MOT...LOC 1603Z 301DEG 27KT 4071 8225

$$

LAPLANTE

2 follow-up statements

381 
WWUS51 KCLE 011620
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
1220 PM EDT THU SEP 1 2011

OHC005-011645-
/O.CON.KCLE.SV.W.0277.000000T0000Z-110901T1645Z/
ASHLAND OH-
1220 PM EDT THU SEP 1 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM EDT
FOR SOUTHEASTERN ASHLAND COUNTY...

AT 1218 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED
NEAR HAYESVILLE...OR 10 MILES SOUTH OF ASHLAND...MOVING SOUTHEAST AT
30 MPH.

LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM 
INCLUDE...HAYESVILLE AND LOUDONVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4069 8235 4071 8234 4079 8230 4078 8213
      4068 8213 4066 8215 4066 8222 4058 8222
TIME...MOT...LOC 1619Z 313DEG 27KT 4072 8225

$$
SCHULER

907 
WWUS51 KCLE 011636
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
1236 PM EDT THU SEP 1 2011

OHC005-011646-
/O.EXP.KCLE.SV.W.0277.000000T0000Z-110901T1645Z/
ASHLAND OH-
1236 PM EDT THU SEP 1 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ASHLAND COUNTY
EXPIRES AT 1245 PM EDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER
APPEARED TO BE SEVERE.

LAT...LON 4069 8235 4071 8234 4079 8230 4078 8213
      4068 8213 4066 8215 4066 8222 4058 8222
TIME...MOT...LOC 1636Z 313DEG 27KT 4063 8213

$$
SCHULER

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 1, 3:19 AM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga, Geauga	26 min
Sep 1, 6:29 AM EDT	Areal Flood Advisory	CLE	Ashtabula	4 hr

Nearby

Severe Thunderstorm Warnings in Ohio, 2011 Every severe thunderstorm warning in 2011

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.