Alert archive / Ohio / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 291, NWS Cleveland, OH

September 26, 2011Ashtabula County, Ohio; Crawford County, Pennsylvania

NWS Cleveland, OH issued this severe thunderstorm warning at Sep 26, 2011, 6:16 PM EDT for Ashtabula County, Ohio; Crawford County, Pennsylvania. It was in force for 59 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: Sep 26, 2011, 6:16 PM EDT (22:16 UTC)
Expired: Sep 26, 2011, 7:15 PM EDT
In force: 59 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

Counties Ashtabula County, OH, Crawford County, PA

The radar

The Cleveland radar (KCLE), 130 km from the middle of the area, began a volume at 22:17 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 26, 6:30 PM EDT	HAIL 1.75	9 N Andover, OH
Sep 26, 6:35 PM EDT	HAIL 1	13 N Andover, OH

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, 10.3 hours before the alert went out and 151 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: 391 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 898 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 171 m²/s²
0-3 km storm-relative helicity: 226 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

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

420 
WUUS51 KCLE 262216
SVRCLE
OHC007-PAC039-262315-
/O.NEW.KCLE.SV.W.0291.110926T2216Z-110926T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
616 PM EDT MON SEP 26 2011

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN ASHTABULA COUNTY IN NORTHEAST OHIO
  NORTHWESTERN CRAWFORD COUNTY IN NORTHWEST PENNSYLVANIA

* UNTIL 715 PM EDT

* AT 613 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 NEAR
  ANDOVER...AND MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LINESVILLE...
  CAMBRIDGE SPRINGS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.

&&

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 4185 7995 4154 8062 4168 8077 4185 8051
TIME...MOT...LOC 2216Z 233DEG 19KT 4167 8059

$$

MULLEN

2 follow-up statements

644 
WWUS51 KCLE 262236
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
636 PM EDT MON SEP 26 2011

OHC007-PAC039-262315-
/O.CON.KCLE.SV.W.0291.000000T0000Z-110926T2315Z/
CRAWFORD PA-ASHTABULA OH-
636 PM EDT MON SEP 26 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR EASTERN ASHTABULA COUNTY IN NORTHEAST OHIO...AND NORTHWESTERN
CRAWFORD COUNTY IN NORTHWEST PENNSYLVANIA...

AT 634 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
12 MILES EAST OF JEFFERSON...MOVING NORTHEAST AT 25 MPH.

LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...RURAL
NORTHWESTERN CRAWFORD COUNTY.

LAT...LON 4184 8018 4161 8051 4173 8068 4174 8067
      4185 8051
TIME...MOT...LOC 2236Z 222DEG 21KT 4175 8053

$$

WILLARD

949 
WWUS51 KCLE 262308
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
708 PM EDT MON SEP 26 2011

OHC007-PAC039-262318-
/O.EXP.KCLE.SV.W.0291.000000T0000Z-110926T2315Z/
CRAWFORD PA-ASHTABULA OH-
708 PM EDT MON SEP 26 2011

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN ASHTABULA COUNTY IN
NORTHEAST OHIO...AND NORTHWESTERN CRAWFORD COUNTY IN NORTHWEST
PENNSYLVANIA EXPIRES AT 715 PM EDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF
THE WARNED AREA. HOWEVER SMALL HAIL IS STILL POSSIBLE WITH THIS
THUNDERSTORM.

LAT...LON 4184 8018 4161 8051 4173 8068 4174 8067
      4185 8051
TIME...MOT...LOC 2308Z 222DEG 21KT 4189 8036

$$

WILLARD

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 26, 8:55 AM EDT	Areal Flood Warning	CLE	Hancock, Lucas, Ottawa, Sandusky, Seneca, Wood and 1 more	6 hr
Sep 26, 9:18 AM EDT	River Flood Warning	CLE	Hancock	19 hr
Sep 26, 10:17 AM EDT	Areal Flood Advisory	CLE	Crawford, Marion, Morrow, Richland	6 hr
Sep 26, 11:25 AM EDT	River Flood Warning	CLE	Hancock	57 hr
Sep 26, 2:45 PM EDT	River Flood Warning	CLE	Marion	54 hr
Sep 26, 2:59 PM EDT	Areal Flood Advisory	CLE	Hancock, Seneca, Wyandot	5 hr
Sep 26, 3:46 PM EDT	Areal Flood Advisory	CLE	Cuyahoga, Medina	3 hr

Nearby

Severe Thunderstorm Warnings in Ohio, 2011 Severe Thunderstorm Warnings in Pennsylvania, 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.