Alert archive / Ohio / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 21, NWS Wilmington, OH

April 11, 2007Pike County, Ross County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Apr 11, 2007, 9:58 PM EDT for Pike County, Ross County, Ohio. It was in force for 32 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
Apr 11, 2007, 9:58 PM EDT (01:58 UTC)
Expired
Apr 11, 2007, 10:30 PM EDT
In force
32 min
Issued by
NWS Wilmington, OH
Area
Counties, with a storm outline in the text

Counties Pike County, OH, Ross County, OH

The radar

The Cincinnati radar (KILN), 74 km from the middle of the area, began a volume at 01:59 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
Apr 11, 10:07 PM EDTHAIL 0.75Waverly, OH
Apr 11, 10:15 PM EDTTSTM WND DMGKingston, OHTHE TOP OF A SILO AT THE VALLEY GRAIN FACILITY WAS KNOCKED OVER, CAUSING ADDITIONAL DAMAGE TO OTHER BUILDINGS WITHIN THE FACILITY. ALL OF THE DAMAGE WAS BLOWN DOWN IN AN EASTERLY DIRECTION AND INDICATIVE OF STRAIGHT-LINE WIND DAMAGE.

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.

IssuedProductOfficeLasted
Apr 11, 7:16 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 2.0 hours before the alert went out and 72 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, Cncnati-Daytn, OH at 00:00Z on 2007-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 305 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 2007-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 241 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
305 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
634 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
241 m²/s²
0-3 km storm-relative helicity
252 m²/s²
Significant tornado parameter
0.5
Supercell composite
1.8

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KILN 120158
SVRILN
OHC131-141-120230-
/O.NEW.KILN.SV.W.0021.070412T0158Z-070412T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
958 PM EDT WED APR 11 2007

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN PIKE COUNTY IN SOUTHWEST OHIO...
  EASTERN ROSS COUNTY IN SOUTHWEST OHIO...

* UNTIL 1030 PM EDT.

* AT 954 PM EDT...STORM SPOTTERS REPORTED GOLF BALL SIZE HAIL HAD 
  OCCURRED IN BAINBRIDGE. RADAR INDICATED THAT THIS SEVERE
  THUNDERSTORM REMAINS CAPABLE OF PRODUCING NICKEL SIZE HAIL AND
  WINDS TO 60 MPH. THIS STORM WAS LOCATED 8 MILES NORTHWEST OF LAKE
  WHITE...MOVING NORTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  NORTH FOLK VILLAGE...
  CHILLICOTHE...
  KINGSTON...

IN ADDITION...PIKE COUNTY AIRPORT...OMEGA...SCIOTO TRAIL STATE
PARK...MASSIEVILLE...LINN...ANDERSONVILLE...RICHMOND DALE AND
MOORESVILLE ARE NEAR THE PATH OF THIS SEVERE THUNDERSTORM.

STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM EDT
THURSDAY MORNING FOR NORTHEASTERN KENTUCKY.

LAT...LON 3948 8311 3900 8311 3905 8281 3947 8276

$$
JF

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 11, 8:01 PM EDTSevere Thunderstorm WarningILNDarke, Preble44 min
Apr 11, 8:05 PM EDTSevere Thunderstorm WarningILNClark, Greene, Montgomery25 min
Apr 11, 8:30 PM EDTSevere Thunderstorm WarningILNDarke, Miami, Shelby21 min
Apr 11, 8:30 PM EDTSevere Thunderstorm WarningILNClinton, Fayette, Greene, Highland, Madison, Ross45 min
Apr 11, 8:35 PM EDTSevere Thunderstorm WarningILNClermont40 min
Apr 11, 8:39 PM EDTSevere Thunderstorm WarningILNClark, Greene51 min
Apr 11, 8:48 PM EDTSevere Thunderstorm WarningILNChampaign, Logan, Miami, Shelby42 min
Apr 11, 9:07 PM EDTTornado WarningILNBrown23 min
Apr 11, 9:26 PM EDTSevere Thunderstorm WarningILNFranklin33 min
Apr 11, 9:30 PM EDTSevere Thunderstorm WarningILNHighland18 min
Apr 11, 9:35 PM EDTSevere Thunderstorm WarningILNDelaware24 min
Apr 11, 9:42 PM EDTSevere Thunderstorm WarningILNLicking33 min
Apr 11, 10:09 PM EDTSevere Thunderstorm WarningILNFairfield, Pickaway36 min
Apr 11, 10:31 PM EDTSevere Thunderstorm WarningILNHocking29 min
Apr 11, 10:37 PM EDTSevere Thunderstorm WarningILNFairfield23 min
Apr 12, 3:57 PM EDTFreeze WarningILNAdams, Auglaize, Brown, Butler, Champaign, Clark and 26 more12 hr

Nearby

Severe Thunderstorm Warnings in Ohio, 2007Every severe thunderstorm warning in 2007

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.