Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 21, NWS Charleston, WV

March 18, 2012Athens County, Morgan County, Ohio

NWS Charleston, WV issued this severe thunderstorm warning at Mar 18, 2012, 8:40 PM EDT for Athens County, Morgan County, Ohio. It was in force for 35 min. 4 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: Mar 18, 2012, 8:40 PM EDT (00:40 UTC)
Expired: Mar 18, 2012, 9:15 PM EDT
In force: 35 min
Issued by: NWS Charleston, WV
Area: Storm-based polygon

Counties Athens County, OH, Morgan County, OH

The radar

The Charleston,WV radar (KRLX), 133 km from the middle of the area, began a volume at 00:43 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
Mar 18, 8:55 PM EDT	HAIL 1.75	Nelsonville, OH
Mar 18, 9:00 PM EDT	HAIL 1	Nelsonville, OH
Mar 18, 9:04 PM EDT	HAIL 1	Buchtel, OH
Mar 18, 9:05 PM EDT	HAIL 1.25	Buchtel, OH

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.7 hours before the alert went out and 143 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: 967 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 1440 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 160 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

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

902 
WUUS51 KRLX 190040
SVRRLX
OHC009-115-190115-
/O.NEW.KRLX.SV.W.0021.120319T0040Z-120319T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
840 PM EDT SUN MAR 18 2012

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...ATHENS...
  SOUTHWESTERN MORGAN COUNTY IN SOUTHEAST OHIO...

* UNTIL 915 PM EDT

* AT 839 PM 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 9 MILES
  NORTHWEST OF NELSONVILLE...OR NEAR LOGAN...AND MOVING EAST AT 25
  MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  BUCHTEL...CHAUNCEY...STROUD RUN STATE PARK...BURR OAK STATE PARK...
  TRIMBLE...THE PLAINS...JACKSONVILLE AND AMESVILLE..

.

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 3950 8188 3927 8199 3938 8229 3944 8229
      3947 8229 3948 8228 3947 8218 3956 8216
      3956 8213
TIME...MOT...LOC 0040Z 291DEG 22KT 3951 8237

$$

1 follow-up statement

224 
WWUS51 KRLX 190058
SVSRLX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
858 PM EDT SUN MAR 18 2012

OHC009-115-190115-
/O.CON.KRLX.SV.W.0021.000000T0000Z-120319T0115Z/
ATHENS OH-MORGAN OH-
858 PM EDT SUN MAR 18 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR SOUTHWESTERN MORGAN AND NORTHWESTERN ATHENS COUNTIES...

AT 853 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR NELSONVILLE...MOVING EAST AT 25 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
BUCHTEL...GLOUSTER...CHAUNCEY...STROUD RUN STATE PARK...BURR OAK
STATE PARK...TRIMBLE...THE PLAINS...JACKSONVILLE...ATHENS AND
AMESVILLE

VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE
WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL
STREAMS. EXPECT INTENSE LIGHTNING FROM THIS STORM. DO NOT STAY IN THE
OPEN NOR SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE
INDOORS WHEN A THUNDERSTORM APPROACHES.

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 3950 8188 3927 8199 3938 8229 3944 8229
      3947 8229 3948 8228 3947 8218 3956 8216
      3956 8213
TIME...MOT...LOC 0057Z 291DEG 22KT 3947 8224

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 18, 8:18 PM EDT	Severe Thunderstorm Warning	RLX	Athens, Morgan, Perry	42 min
Mar 18, 9:14 PM EDT	Severe Thunderstorm Warning	RLX	Athens, Morgan, Washington	46 min
Mar 18, 9:26 PM EDT	Severe Thunderstorm Warning	RLX	Athens, Perry	34 min
Mar 18, 9:59 PM EDT	Severe Thunderstorm Warning	RLX	Athens, Morgan, Perry, Washington	46 min
Mar 18, 10:56 PM EDT	Special Weather Statement	RLX	Athens	34 min
Mar 18, 11:23 PM EDT	Severe Thunderstorm Warning	RLX	Athens, Meigs, Washington	30 min
Mar 18, 11:28 PM EDT	Flash Flood Warning	RLX	Athens, Vinton	2 hr
Mar 19, 1:58 AM EDT	Special Weather Statement	RLX	Athens	32 min
Mar 19, 2:07 AM EDT	Severe Thunderstorm Warning	RLX	Athens, Washington	38 min
Mar 19, 2:58 PM EDT	Special Weather Statement	RLX	Athens	2 hr
Mar 19, 3:09 PM EDT	Special Weather Statement	RLX	Athens	36 min
Mar 19, 3:49 PM EDT	Special Weather Statement	RLX	Athens	71 min
Mar 19, 5:24 PM EDT	Severe Thunderstorm Warning	RLX	Washington	36 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2012 Every severe thunderstorm warning 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.