Alert archive / Ohio / Tornado Warnings in 2008

Tornado Warning 2, NWS Wilmington, OH

April 11, 2008Union County, Ohio

NWS Wilmington, OH issued this tornado warning at Apr 11, 2008, 8:01 PM EDT for Union County, Ohio. It was in force for 19 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 11, 2008, 8:01 PM EDT (00:01 UTC)
Expired: Apr 11, 2008, 8:20 PM EDT
In force: 19 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon

County Union County, OH

The radar

The Cincinnati radar (KILN), 118 km from the middle of the area, began a volume at 00:03 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 nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.0 hours before the alert went out and 116 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: 176 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 1385 m above ground
0-6 km bulk shear: 94 kt
0-1 km storm-relative helicity: 175 m²/s²
0-3 km storm-relative helicity: 376 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 4.5

Open this sounding in Storm Lab

The text

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

000 
WFUS51 KILN 120001
TORILN
OHC159-120030-
/O.NEW.KILN.TO.W.0002.080412T0001Z-080412T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
801 PM EDT FRI APR 11 2008

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN UNION COUNTY IN CENTRAL OHIO...

* UNTIL 830 PM EDT.

* AT 759 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR SOMERSVILLE...MOVING NORTHEAST AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  RICHWOOD...

IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. MOBILE HOMES
AND VEHICLES SHOULD BE ABANDONED FOR MORE SUBSTANTIAL SHELTER. AVOID
WINDOWS

PLEASE REPORT TORNADOES...FUNNEL CLOUDS...STRONG WINDS OR HAIL TO THE
NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772...WHEN
YOU CAN DO SO SAFELY.

LAT...LON 4041 8351 4050 8337 4046 8324 4043 8324
      4041 8324 4030 8329
TIME...MOT...LOC 0001Z 234DEG 60KT 4039 8335

$$

1 follow-up statement

000 
WWUS51 KILN 120020
SVSILN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
819 PM EDT FRI APR 11 2008

OHC159-120029-
/O.CAN.KILN.TO.W.0002.000000T0000Z-080412T0030Z/
UNION OH-
819 PM EDT FRI APR 11 2008

...THE TORNADO WARNING FOR NORTHERN UNION COUNTY IN CENTRAL OHIO HAS
BEEN CANCELLED...

THE THUNDERSTORM HAS MOVED OUT OF THE WARNED AREA...THEREFORE THE
TORNADO WARNING HAS BEEN CANCELLED.

GUSTY WINDS...SMALL HAIL AND VERY HEAVY RAIN WILL STILL BE POSSIBLE
WITH THIS STORM.

PLEASE REPORT PREVIOUS TORNADOES...WIND DAMAGE OR HAIL TO THE
NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772.

LAT...LON 4041 8351 4050 8337 4046 8324 4043 8324
      4041 8324 4030 8329
TIME...MOT...LOC 0019Z 234DEG 60KT 4056 8303

$$

Nearby

Tornado Warnings in Ohio, 2008 Every tornado warning in 2008 Tornadoes in 2008

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.