Alert archive / Ohio / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 12, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Apr 20, 2011, 1:29 AM EDT for 5 counties in Ohio. It was in force for 46 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
- Apr 20, 2011, 1:29 AM EDT (05:29 UTC)
- Expired
- Apr 20, 2011, 2:15 AM EDT
- In force
- 46 min
- Issued by
- NWS Cleveland, OH
- Area
- Storm-based polygon
Counties Ashtabula County, OH, Geauga County, OH, Lake County, OH, Portage County, OH, Trumbull County, OH
The radar
The Cleveland radar (KCLE), 89 km from the middle of the area, began a volume at 05:30 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 20, 12:18 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 00:00Z, 5.5 hours before the alert went out and 148 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.
- Mixed-layer CAPE
- 2 J/kg
- Mixed-layer CIN
- -392 J/kg
- Mixed-layer LCL
- 1017 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 234 m²/s²
- 0-3 km storm-relative helicity
- 422 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.5
The text
As transmitted, in the capitals the NWS used until 2016.
762 WUUS51 KCLE 200529 SVRCLE OHC007-055-085-133-155-200615- /O.NEW.KCLE.SV.W.0012.110420T0529Z-110420T0615Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CLEVELAND OH 129 AM EDT WED APR 20 2011 THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... ASHTABULA COUNTY IN NORTHEAST OHIO GEAUGA COUNTY IN NORTHEAST OHIO NORTHEASTERN LAKE COUNTY IN NORTHEAST OHIO NORTHEASTERN PORTAGE COUNTY IN NORTHEAST OHIO NORTHERN TRUMBULL COUNTY IN NORTHEAST OHIO * UNTIL 215 AM EDT * AT 126 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM CHARDON TO RAVENNA...AND MOVING NORTHEAST AT 50 MPH. * LOCATIONS IMPACTED INCLUDE... JEFFERSON... ASHTABULA... MIDDLEFIELD... WEST FARMINGTON... MADISON... NORTH BLOOMFIELD... BRISTOLVILLE... GENEVA... ORWELL... CORTLAND... 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 4198 8052 4132 8053 4112 8127 4170 8130 TIME...MOT...LOC 0529Z 244DEG 45KT 4167 8115 4123 8114 $$ OUDEMAN
2 follow-up statements
573 WWUS51 KCLE 200555 SVSCLE SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OH 155 AM EDT WED APR 20 2011 OHC055-085-133-200604- /O.CAN.KCLE.SV.W.0012.000000T0000Z-110420T0615Z/ PORTAGE OH-GEAUGA OH-LAKE OH- 155 AM EDT WED APR 20 2011 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LAKE...GEAUGA AND NORTHEASTERN PORTAGE COUNTIES IS CANCELLED... THE STORMS HAVE MOVED OUT OF THE WARNED AREA. && LAT...LON 4180 8099 4198 8052 4132 8053 4120 8099 TIME...MOT...LOC 0554Z 244DEG 45KT 4180 8076 4136 8076 $$ OHC007-155-200615- /O.CON.KCLE.SV.W.0012.000000T0000Z-110420T0615Z/ TRUMBULL OH-ASHTABULA OH- 155 AM EDT WED APR 20 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM EDT FOR ASHTABULA AND NORTHERN TRUMBULL COUNTIES... AT 151 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM JEFFERSON TO BRISTOLVILLE...MOVING NORTHEAST AT 50 MPH. LOCATIONS NEAR THE PATH OF SEVERE THUNDERSTORMS INCLUDE...KINSMAN... ANDOVER...NORTH KINGSVILLE AND CONNEAUT. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. SEEK SHELTER INSIDE NOW AND STAY AWAY FROM WINDOWS. && LAT...LON 4180 8099 4198 8052 4132 8053 4120 8099 TIME...MOT...LOC 0554Z 244DEG 45KT 4180 8076 4136 8076 $$ OUDEMAN
085 WWUS51 KCLE 200614 SVSCLE SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OH 214 AM EDT WED APR 20 2011 OHC007-155-200624- /O.EXP.KCLE.SV.W.0012.000000T0000Z-110420T0615Z/ TRUMBULL OH-ASHTABULA OH- 214 AM EDT WED APR 20 2011 ...THE SEVERE THUNDERSTORM WARNING FOR ASHTABULA AND NORTHERN TRUMBULL COUNTIES EXPIRES AT 215 AM EDT... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF THE WARNED AREA. && LAT...LON 4180 8099 4198 8052 4132 8053 4120 8099 TIME...MOT...LOC 0614Z 244DEG 45KT 4191 8045 4147 8046 $$ OUDEMAN
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 20, 12:08 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Hancock, Marion, Seneca, Wyandot | 67 min |
| Apr 20, 12:34 AM EDT | Special Marine Warning | CLE | 86 min | |
| Apr 20, 2:38 AM EDT | Severe Thunderstorm Warning | CLE | Holmes, Knox | 37 min |
| Apr 20, 5:42 AM EDT | River Flood Warning | CLE | Lorain | 35 hr |
| Apr 20, 9:56 AM EDT | River Flood Warning | CLE | Holmes, Wayne | 35 hr |
| Apr 20, 11:28 AM EDT | River Flood Warning | CLE | Trumbull | 23 hr |
| Apr 20, 11:31 AM EDT | Wind Advisory | CLE | Ashtabula, Cuyahoga, Geauga, Lake | 4 hr |
| Apr 20, 12:44 PM EDT | Gale Warning | CLE | 9 hr | |
| Apr 20, 12:44 PM EDT | Small Craft Advisory | CLE | 27 hr | |
| Apr 20, 2:04 PM EDT | River Flood Warning | CLE | Ottawa, Sandusky, Wood | 32 hr |
| Apr 20, 3:26 PM EDT | River Flood Warning | CLE | Marion | 25 hr |
Nearby
Severe Thunderstorm Warnings in Ohio, 2011Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.