Alert archive / Ohio / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 13, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Apr 20, 2011, 2:38 AM EDT for Holmes County, Knox County, Ohio. It was in force for 37 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
- Apr 20, 2011, 2:38 AM EDT (06:38 UTC)
- Expired
- Apr 20, 2011, 3:15 AM EDT
- In force
- 37 min
- Issued by
- NWS Cleveland, OH
- Area
- Storm-based polygon
Counties Holmes County, OH, Knox County, OH
The radar
The Cleveland radar (KCLE), 101 km from the middle of the area, began a volume at 06:38 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 |
|---|---|---|---|
| Apr 20, 2:46 AM EDT | HAIL 1.25 | 6 Ene Mount Vernon, OH |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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, 6.6 hours before the alert went out and 164 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.
152
WUUS51 KCLE 200638
SVRCLE
OHC075-083-200715-
/O.NEW.KCLE.SV.W.0013.110420T0638Z-110420T0715Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
238 AM EDT WED APR 20 2011
THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
KNOX COUNTY IN NORTH CENTRAL OHIO
HOLMES COUNTY IN NORTHEAST OHIO
* UNTIL 315 AM EDT
* AT 234 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
GAMBIER...AND MOVING NORTHEAST AT 55 MPH. ADDITIONAL THUNDERSTORMS
MAY ALSO INCREASE IN STRENGTH. OTHER SEVERE THUNDERSTORMS WERE
* LOCATIONS IMPACTED INCLUDE...
MILLERSBURG...
HOLMESVILLE...
DANVILLE...
GLENMONT...
KILLBUCK...
NASHVILLE...
BERLIN...
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 4054 8263 4056 8223 4067 8222 4067 8165
4064 8165 4063 8167 4053 8166 4052 8167
4044 8167 4045 8217 4024 8220 4024 8244
TIME...MOT...LOC 0637Z 240DEG 48KT 4035 8237
$$
MULLEN1 follow-up statement
559
WWUS51 KCLE 200708
SVSCLE
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
308 AM EDT WED APR 20 2011
OHC083-200718-
/O.CAN.KCLE.SV.W.0013.000000T0000Z-110420T0715Z/
KNOX OH-
308 AM EDT WED APR 20 2011
...THE SEVERE THUNDERSTORM WARNING FOR KNOX COUNTY IS CANCELLED...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM EDT
WEDNESDAY MORNING FOR NORTHEASTERN OHIO AND NORTHWEST PENNSYLVANIA.
LAT...LON 4045 8217 4056 8216 4057 8222 4067 8222
4067 8165 4064 8165 4063 8167 4053 8166
4052 8167 4044 8167
TIME...MOT...LOC 0708Z 240DEG 48KT 4055 8190
$$
OHC075-200715-
/O.CON.KCLE.SV.W.0013.000000T0000Z-110420T0715Z/
HOLMES OH-
308 AM EDT WED APR 20 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM EDT
FOR HOLMES COUNTY...
AT 303 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS
IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR KILLBUCK...OR NEAR
MILLERSBURG...MOVING NORTHEAST AT 55 MPH.
LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
WINESBURG AND WALNUT CREEK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM EDT
WEDNESDAY MORNING FOR NORTHEASTERN OHIO AND NORTHWEST PENNSYLVANIA.
&&
LAT...LON 4045 8217 4056 8216 4057 8222 4067 8222
4067 8165 4064 8165 4063 8167 4053 8166
4052 8167 4044 8167
TIME...MOT...LOC 0708Z 240DEG 48KT 4055 8190
$$
MULLENThe 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, 1:29 AM EDT | Severe Thunderstorm Warning | CLE | Ashtabula, Geauga, Lake, Portage, Trumbull | 46 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.