Alert archive / Ohio / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 109, NWS Wilmington, OH

June 26, 2002Butler County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jun 26, 2002, 6:04 PM EDT for Butler County, Ohio. It was in force for 41 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 26, 2002, 6:04 PM EDT (22:04 UTC)
Expired: Jun 26, 2002, 6:45 PM EDT
In force: 41 min
Issued by: NWS Wilmington, OH
Area: Whole counties

County Butler County, OH

The radar

The Cincinnati radar (KILN), 65 km from the middle of the area, began a volume at 22:04 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 26, 6:12 PM EDT	Thunderstorm Wind 50 E	Middletown, OH	Trees and power lines were kncked down in the city.

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, 10.1 hours before the alert went out and 67 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: 599 J/kg
Mixed-layer CIN: -81 J/kg
Mixed-layer LCL: 830 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 41 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 26, 3:30 PM EDT, 2 hours 34 minutes earlier.

Area forecast discussion, Jun 26, 3:30 PM EDT, 2 hours 34 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
330 PM EDT WED JUN 26 2002

ORGANIZED CONVECTION HAS FIRED ALONG OUTFLOW BOUNDARY OVER NORTHERN
IN/OH.  OTHER CLUSTERS OF CONVECTION HAS FIRED ALONG 1-71.  SURFACE
ANALYSIS INDICATES WESTERLY FLOW WITH A FEW SMALL TROFS BEING
INDICATED IN THE FLOW.

MODELS ARE ALL RELATIVELY SIMILAR.  THERE IS A BIT OF DISCREPANCY
WITH THE AVN/UKMET/NGM AND ETA ON THURSDAY.  ETA SHOW IS MORE
DEFINED WITH A PRE-FRONTAL TROF.  IN OTHER WORDS IT HAS TWO DISTINCT
TROF/FRONTAL PASSAGES.  WHERE HAS THE NGM/AVN/UKMET CONCENTRATES ON
ONE.  THANKFULLY THIS HAS LITTLE BEARING ON THE ACTUAL WORDED
FORECAST.

WILL ALLOW THE THREAT OF THUNDERSTORMS TO GO ALL NIGHT.  AS ETA
TRYING TO BRING A COMPLEX ACROSS NORTHERN/CENTRAL OHIO AFTER 6Z WITH
A GOOD LOW LEVEL CONVERGENCE/UPPER LEVEL CONVERGENCE SIGNATURE.
WILL KEEP LIKELY WORDING WITH FRONTAL PASSAGE.  WILL CONCENTRATE ON
AFTERNOON ACROSS THE NORTH AND EVENING ACROSS THE SOUTH.  FORECAST
WILL THEN BECOME DRY AS UPPER LEVEL RIDGE BUILDS IN THROUGH THE
EXTENDED.  WITH RIDGE TEMPS WILL CLIMB INTO THE 90S FOR THE FIRST
HALF OF NEXT WEEK.

FWC TEMPS LOOK REASONABLE FOR THE FIRST THREE PERIODS.  WILL BUMP UP
A CAT OR TWO FOR FRIDAY TO ACCOUNT FOR SUNNY SKIES AND WARMER LOW
LEVEL THICKNESSES.

ZFP WILL BE OUT SHORTLY.

.ILN...NONE.
 TIPTON

In the hours before

Local storm report, Jun 26, 3:48 PM EDT, 2 hours 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON, OH
348 PM EDT WED JUN 26 2002

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0342 PM    1 SE SIDNEY               OH   .88 INCH HAIL
06/26/02   SHELBY

RLB

Local storm report, Jun 26, 5:58 PM EDT, 6 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 26, 4:07 PM EDT	Severe Thunderstorm Warning	ILN	Champaign	23 min
Jun 26, 5:02 PM EDT	Severe Thunderstorm Warning	ILN	Franklin	43 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2002 Every severe thunderstorm warning in 2002

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.