Alert archive / Ohio / Tornado Warnings in 2012

Tornado Warning 1, NWS Cleveland, OH

March 30, 2012Knox County, Ohio

NWS Cleveland, OH issued this tornado warning at Mar 30, 2012, 7:27 PM EDT for Knox County, Ohio. It was in force for 38 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: Mar 30, 2012, 7:27 PM EDT (23:27 UTC)
Expired: Mar 30, 2012, 8:05 PM EDT
In force: 38 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

County Knox County, OH

The radar

The Cleveland radar (KCLE), 135 km from the middle of the area, began a volume at 23:27 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
Mar 30, 7:42 PM EDT	HAIL 1.25	3 Wsw Martinsburg, 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
Mar 30, 3:24 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.5 hours before the alert went out and 150 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 825 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 249 m²/s²
0-3 km storm-relative helicity: 364 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

584 
WFUS51 KCLE 302327
TORCLE
OHC083-310015-
/O.NEW.KCLE.TO.W.0001.120330T2327Z-120331T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
727 PM EDT FRI MAR 30 2012

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN KNOX COUNTY IN NORTH CENTRAL OHIO...

* UNTIL 815 PM EDT

* AT 723 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 6 MILES EAST OF CENTERBURG...OR 9 MILES SOUTHWEST
  OF MOUNT VERNON...AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MOUNT VERNON...GAMBIER AND MARTINSBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. IF NO
BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR CLOSET.

PLEASE REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE. 1-877-633-6772. WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 4024 8247 4025 8248 4026 8249 4027 8261
      4027 8262 4040 8259 4039 8218 4024 8219
      4023 8220
TIME...MOT...LOC 2328Z 277DEG 27KT 4028 8253

$$

KUBINA

2 follow-up statements

865 
WWUS51 KCLE 302356
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
756 PM EDT FRI MAR 30 2012

OHC083-310015-
/O.CON.KCLE.TO.W.0001.000000T0000Z-120331T0015Z/
KNOX OH-
756 PM EDT FRI MAR 30 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM EDT FOR
SOUTHEASTERN KNOX COUNTY...

AT 749 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A ROTATING THUNDERSTORM NEAR MARTINSBURG IN SOUTHEASTERN 
KNOX COUNTY. THIS STORM IS CAPABLE OF PRODUCING A TORNADO. GOLF 
BALL SIZE HAIL HAS BEEN REPORTED NEAR CENTERBURG AND HARTFORD WHEN 
THE STORM MOVED THROUGH. THE STORM IS MOVING EAST AT 30 MPH.

LOCATIONS NEAR THE PATH OF THE STORM INCLUDE EXTREME SOUTHEASTERN 
KNOX COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. 
OTHERWISE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN 
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET.

&&

LAT...LON 4024 8243 4033 8232 4036 8218 4024 8219
      4023 8220
TIME...MOT...LOC 2353Z 277DEG 27KT 4026 8228

$$

KOSARIK

555 
WWUS51 KCLE 310005
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
805 PM EDT FRI MAR 30 2012

OHC083-310015-
/O.CAN.KCLE.TO.W.0001.000000T0000Z-120331T0015Z/
KNOX OH-
805 PM EDT FRI MAR 30 2012

...THE TORNADO WARNING FOR SOUTHEASTERN KNOX COUNTY IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF 
THE WARNED AREA.

LAT...LON 4024 8243 4033 8232 4036 8218 4024 8219
      4023 8220
TIME...MOT...LOC 0005Z 277DEG 27KT 4025 8216

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 10:07 AM EDT	Small Craft Advisory	CLE		29 hr
Mar 30, 6:27 PM EDT	Severe Thunderstorm Warning	CLE	Ashland, Morrow, Richland	48 min
Mar 30, 7:06 PM EDT	Severe Thunderstorm Warning	CLE	Knox	24 min

Nearby

Tornado Warnings in Ohio, 2012 Every tornado warning in 2012 Tornadoes in 2012

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.