Alert archive / Ohio / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 117, NWS Wilmington, OH

June 11, 2001Clark County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jun 11, 2001, 3:58 PM EDT for Clark County, Ohio. It was in force for 62 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 11, 2001, 3:58 PM EDT (19:58 UTC)
Expired: Jun 11, 2001, 5:00 PM EDT
In force: 62 min
Issued by: NWS Wilmington, OH
Area: Whole counties

County Clark County, OH

The radar

The Cincinnati radar (KILN), 55 km from the middle of the area, began a volume at 19:57 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
Jun 11, 4:30 PM EDT	Thunderstorm Wind 55 E	New Carlisle, OH	A thunderstorm produced strong winds which caused roof damage at a treatment plant. Trees were also downed in the western part of the county.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.0 hours before the alert went out and 54 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: 1421 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 168 m²/s²
0-3 km storm-relative helicity: 196 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wilmington, OH wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 11, 2:25 PM EDT, 1 hour 33 minutes earlier.

Area forecast discussion, Jun 11, 2:25 PM EDT, 1 hour 33 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
225 PM EDT MON JUN 11 2001

FLO AMPLIFYS THRU THE PD AS MID LVL RDGG OVR CNTRL U.S. BLDS E
INTO THE OH VLY AND UPR LO OVR PAC NW PUSHES E INTO NRN PLNS. FOCUS
THIS EVE...REVOVLES ARND CHC/S FOR TSTMS. OUTLFLOW BNDRY IN PLACE
ACRS W CNTRL OH AND CNTRL OH. LTST VIS SATL IMGRY SHWS CU FIELD
HS DVLPD WHERE BEST INSTBY EXISTS ACRS CNTRL IN INTO W CNTRL OH.
WL MONITOR THIS AREA FOR CHC FOR SCTD EVE TSTM ACTIVTY. ATTM LEANING
TOWARD DRY FCST.

FOCUS SHIFTS TO MCS DVLPMNT OVR UPR MS VLY AHD OF WRMFNT. THIS MCS
SHUD FOLLOW FAVORED 850/300 THICKNESS SE INTO NRN IL THIS EVE AND
THEN POSSIBLY INTO W CNTRL OH AFTER MIDNIGHT AND TO CNTRL OH TWD
SUNRISE. WL INDICATE CHC POPS IN THESE LOCATIONS. TEMP WISE...WL
GO A LTL WRMR THAN FWC GUID TNGT WITH HIGHER DWPTS AND SWRLY FLO.

ON TUE...MID LVL RDGG INTO SRN OH WITH WK S/WV IN WESTERLIES
EXPECTED ACRS SRN GRTLKS. WL GO WITH LO POP CHC TSTMS ACRS THE
N WHERE MARGINALLY FAVORABLE LO LVL CNVRGC WL EXIST. WL GO CLOSE
TO GUID TEMPS ON TUE. THIS WL PLACE CVG...DAY AND CMH AOA 90 DEG.
LAST 90 OR ABV WAS SEP 2000 FOR CVG...JUN 2000 FOR CMH AND SEPT 99
FOR DAY. WL ISSUE SPS REGARDING THIS FIRST 90 DEG HI FCST.

MEANWHILE...REMNANTS OF ALLISON OVR THE GULF TO LIFT NE A THRU THE
APPALACHIANS WED/THU TIME FRAME. MODEL TRENDS FARTHER NW WITH THIS
SYS. WL INCLUDE CHC IN SE SECTIONS WED NGT. DURG THE DAY WED XPCT
SOME INCRS IN THE VANGARD HI CLDS INTO SE SECTIONS. OTHERWISE...XPCT
WED TO BE DRY DURG THE DAY WITH SUBSIDENCE XPCTD IN BTWN REMNANTS OF
ALLISON AND FNT TO OUR W. LO LVL THICKNESSES AND H8 TEMPS WUD INDICATE
THAT HI/S SHUD WRM UuP A DEG OR TWO WED.

.ILN...NONE.

RANDALL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 5:17 PM EDT	Severe Thunderstorm Warning	ILN	Miami, Montgomery	43 min
Jun 11, 5:30 PM EDT	Severe Thunderstorm Warning	ILN	Greene	60 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2001 Every severe thunderstorm warning in 2001

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.