Alert archive / Ohio / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 52, NWS Wilmington, OH

June 9, 1999Montgomery County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jun 9, 1999, 4:21 PM EDT for Montgomery County, Ohio. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 9, 1999, 4:21 PM EDT (20:21 UTC)
Expired: Jun 9, 1999, 5:10 PM EDT
In force: 49 min
Issued by: NWS Wilmington, OH
Area: Whole counties

County Montgomery County, OH

The radar

The Cincinnati radar (KILN), 55 km from the middle of the area, began a volume at 20:03 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.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.4 hours before the alert went out and 55 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: 2326 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 0 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 9, 3:20 PM EDT, 1 hour 1 minute earlier.

Area forecast discussion, Jun 9, 3:20 PM EDT, 1 hour 1 minute before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
320 PM EDT WED JUN 9 1999

LITTLE TIME FOR DISCUSSION.  WILL USE EVENING WORDING ACROSS WESTERN
FA TO TAKE CARE OF DIURNAL STRONG TO SEVERE TSRA.  OTHERWISE WILL
STICK CLOSE TO FWC AS UPPER LEVEL RIDGE SLOWLY PUSHES OFF TO THE
EAST COAST.  WILL PUT MENTION OF AFTER TSRA BOTH THU AND FRI.  THU
DUE TO WEAK CYCLONIC FLOW OVER FA AND FRI DUE TO INCREASE IN PWS AND
RIDGE EXITING REGION.

WILL KEEP TSRA MENTIONED THROUGH EXTENDED AS TROUGH APPROACHES FROM
THE WEST.

MISILN SENT TO ALL.

.ILN...NONE.
 TIPTON

In the hours before

Local storm report, Jun 9, 3:30 PM EDT, 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
330 PM EDT WED JUN 09 1999

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

0135 PM    ARCANUM                   OH   .75 INCH HAIL
06/09/99   DARKE

0230 PM                              OH   .75 INCH HAIL
06/09/99   MERCER                         SOUTH OF CELINA

Local storm report, Jun 9, 3:46 PM EDT, 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
346 PM EDT WED JUN 09 1999

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

0245 PM                              OH   .75 INCH HAIL
06/09/99   DARKE                          WEST OF OSGOOD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 9, 1:01 PM EDT	Severe Thunderstorm Warning	ILN	Darke	49 min
Jun 9, 2:03 PM EDT	Severe Thunderstorm Warning	ILN	Mercer	62 min
Jun 9, 2:21 PM EDT	Severe Thunderstorm Warning	ILN	Preble	49 min
Jun 9, 2:29 PM EDT	Severe Thunderstorm Warning	ILN	Darke	61 min
Jun 9, 2:55 PM EDT	Flash Flood Warning	ILN	Mercer	2 hr
Jun 9, 4:35 PM EDT	Severe Thunderstorm Warning	ILN	Preble	45 min
Jun 9, 1:35 PM EDT	Severe Thunderstorm Warning	ILN	Dearborn, Ohio	50 min
Jun 9, 5:38 PM EDT	Severe Thunderstorm Warning	ILN	Wayne	62 min
Jun 9, 6:23 PM EDT	Flash Flood Warning	ILN	Wayne	117 min
Jun 9, 5:10 PM EDT	Severe Thunderstorm Warning	ILN	Owen	65 min
Jun 9, 5:50 PM EDT	Flash Flood Warning	ILN	Owen	2 hr

Nearby

Severe Thunderstorm Warnings in Ohio, 1999 Every severe thunderstorm warning in 1999

Sources

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