Alert archive / Ohio / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 1, NWS Charleston, WV

February 28, 20115 counties in Ohio

NWS Charleston, WV issued this severe thunderstorm warning at Feb 28, 2011, 5:52 AM EST for 5 counties in Ohio. It was in force for 53 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: Feb 28, 2011, 5:52 AM EST (10:52 UTC)
Expired: Feb 28, 2011, 6:45 AM EST
In force: 53 min
Issued by: NWS Charleston, WV
Area: Storm-based polygon

Counties Athens County, OH, Jackson County, OH, Morgan County, OH, Perry County, OH, Vinton County, OH

The radar

The Cincinnati radar (KILN), 144 km from the middle of the area, began a volume at 10:55 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
Feb 28, 6:20 AM EST	TSTM WND DMG	New Lexington, OH	NUMEROUS TREES DOWN THROUGHOUT COUNTY. VEHICLE HIT TREE HANGING OVER ROAD AND DAMAGED WINDSHIELD
Feb 28, 6:35 AM EST	TSTM WND DMG	Corning, OH	POWER OUT IN THE SOUTHERN PART OF PERRY COUNTY

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
Feb 28, 1:40 AM EST	Tornado Watch	SPC	6 hr
Feb 28, 5:47 AM EST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 10.9 hours before the alert went out and 142 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: 539 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 325 m²/s²
0-3 km storm-relative helicity: 380 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

120 
WUUS51 KRLX 281052
SVRRLX
OHC009-079-115-127-163-281145-
/O.NEW.KRLX.SV.W.0001.110228T1052Z-110228T1145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
552 AM EST MON FEB 28 2011

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN ATHENS COUNTY IN SOUTHEAST OHIO...
  THIS INCLUDES THE CITIES OF...NELSONVILLE...GLOUSTER...
  NORTHERN JACKSON COUNTY IN SOUTHEAST OHIO...
  THIS INCLUDES THE CITY OF WELLSTON...
  MORGAN COUNTY IN SOUTHEAST OHIO...
  THIS INCLUDES THE CITIES OF...MCCONNELSVILLE...CHESTERHILL...
  PERRY COUNTY IN SOUTHEAST OHIO...
  THIS INCLUDES THE CITIES OF...SOMERSET...SHAWNEE...PERRY STATE
  FOREST...NEW LEXINGTON...
  VINTON COUNTY IN SOUTHEAST OHIO...
  THIS INCLUDES THE CITIES OF...MCARTHUR...LAKE HOPE STATE PARK...

* UNTIL 645 AM EST

* AT 549 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 32 MILES NORTHEAST OF SOMERSET TO 32 MILES WEST OF SOMERSET TO
  50 MILES WEST OF WELLSTON...OR ALONG A LINE EXTENDING FROM 17 MILES
  NORTH OF ZANESVILLE TO 6 MILES NORTHEAST OF CIRCLEVILLE TO
  GREENFIELD...AND MOVING EAST AT 55 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  THORNVILLE...GLENFORD...JUNCTION CITY...CROOKSVILLE...EAGLE
  MILLS...BYER...COALTON...ALLENSVILLE...NEW STRAITSVILLE...HAMDEN...
  EAGLEPORT...HEMLOCK...CREOLA...RENDVILLE...CORNING...ZALESKI...
  BUCHTEL...MALTA...BURR OAK STATE PARK...BRISTOL...TRIMBLE...
  JACKSONVILLE...THE PLAINS...CHAUNCEY...HACKNEY AND STOCKPORT..

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM EST MONDAY AFTERNOON
FOR CENTRAL KENTUCKY AND SOUTHEAST OHIO AND CENTRAL VIRGINIA AND
CENTRAL WEST VIRGINIA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
900 AM EST MONDAY MORNING FOR SOUTHEAST OHIO.

&&

LAT...LON 3991 8217 3982 8216 3982 8208 3977 8206
      3974 8164 3967 8164 3963 8158 3958 8172
      3954 8173 3895 8281 3937 8274 3939 8229
      3947 8228 3947 8217 3955 8217 3960 8239
      3973 8237 3982 8240 3983 8248 3994 8245
TIME...MOT...LOC 1051Z 266DEG 74KT 4021 8193 3968 8282
          3933 8339

$$

26

1 follow-up statement

066 
WWUS51 KRLX 281122
SVSRLX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
622 AM EST MON FEB 28 2011

OHC009-079-115-127-163-281145-
/O.CON.KRLX.SV.W.0001.000000T0000Z-110228T1145Z/
VINTON OH-PERRY OH-ATHENS OH-MORGAN OH-JACKSON OH-
622 AM EST MON FEB 28 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 AM EST
FOR NORTHERN JACKSON...MORGAN...NORTHWESTERN ATHENS...PERRY AND
VINTON COUNTIES IN SOUTHEAST OHIO...

AT 617 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 45 MILES NORTHEAST OF BRISTOL TO NEW STRAITSVILLE TO
19 MILES WEST OF BYER...OR ALONG A LINE EXTENDING FROM 15 MILES NORTH
OF BARNESVILLE TO LOGAN TO WAVERLY...MOVING EAST AT 55 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CORNING...ALLENSVILLE...CREOLA...NELSONVILLE...MALTA...BUCHTEL...
MCCONNELSVILLE...COALTON...GLOUSTER...BURR OAK STATE PARK...LAKE HOPE
STATE PARK...MCARTHUR...TRIMBLE...JACKSONVILLE...ZALESKI...
WELLSTON...HAMDEN...CHAUNCEY...THE PLAINS...HACKNEY...STOCKPORT AND
CHESTERHILL

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM EST MONDAY AFTERNOON
FOR CENTRAL KENTUCKY AND SOUTHEAST OHIO AND CENTRAL VIRGINIA AND
CENTRAL WEST VIRGINIA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
900 AM EST MONDAY MORNING FOR SOUTHEAST OHIO.

&&

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

LAT...LON 3991 8217 3982 8216 3982 8208 3977 8206
      3974 8164 3967 8164 3963 8158 3958 8172
      3954 8173 3895 8281 3937 8274 3939 8229
      3947 8228 3947 8217 3955 8217 3960 8239
      3973 8237 3982 8240 3983 8248 3994 8245
TIME...MOT...LOC 1121Z 266DEG 74KT 4020 8109 3956 8221
          3915 8288

$$

13

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 28, 6:19 AM EST	Severe Thunderstorm Warning	RLX	Lawrence	56 min
Feb 28, 6:42 AM EST	Severe Thunderstorm Warning	RLX	Athens, Gallia, Jackson, Lawrence, Meigs, Morgan and 2 more	63 min
Feb 28, 7:13 AM EST	Severe Thunderstorm Warning	RLX	Gallia, Lawrence	62 min
Feb 28, 7:14 AM EST	Tornado Warning	RLX	Athens, Meigs, Washington	32 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2011 Every 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.