Alert archive / Ohio / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 275, NWS Wilmington, OH

September 20, 2000Fayette County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Sep 20, 2000, 8:23 PM EDT for Fayette County, Ohio. It was in force for 32 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: Sep 20, 2000, 8:23 PM EDT (00:23 UTC)
Expired: Sep 20, 2000, 8:55 PM EDT
In force: 32 min
Issued by: NWS Wilmington, OH
Area: Whole counties

County Fayette County, OH

The radar

The Cincinnati radar (KILN), 35 km from the middle of the area, began a volume at 00:25 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
Sep 20, 8:30 PM EDT	Thunderstorm Wind 50 E	Countywide, OH	Thunderstorms knocked trees across the county, especially in the northwestern 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 20, 5:00 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.4 hours before the alert went out and 33 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: 579 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 1294 m above ground
0-6 km bulk shear: 73 kt
0-1 km storm-relative helicity: 628 m²/s²
0-3 km storm-relative helicity: 807 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 15.4

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 Sep 20, 4:30 PM EDT, 3 hours 53 minutes earlier.

Area forecast discussion, Sep 20, 4:30 PM EDT, 3 hours 53 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
430 PM EDT WED SEP 20 2000

WILL BE ISSUING AN UPDATED ZFP SOON TO INCLUDE SVR TSTM WATCH FOR
ENTIRE AREA UNTIL 11 PM EDT.

.ILN...NONE.

HICKMAN

In the hours before

Local storm report, Sep 20, 5:01 PM EDT, 3 hours 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON, OH
501 PM EDT WED SEP 20 2000

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

0345 PM    LOGAN                     OH   WIND DAMAGE
09/20/00   HOCKING                        TREE DOWN IN LOGAN

0350 PM    ROCKBRIDGE                OH   WIND DAMAGE
09/20/00   HOCKING                        TWO LARGE TREES DOWN JUST
                                          OUTSIDE OF
                                          ROCKBRIDGE

JDR

Local storm report, Sep 20, 6:24 PM EDT, 1 hour 59 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON, OH
506 PM EDT WED SEP 20 2000

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

600 PM    RICHMOND                  IN   WIND DAMAGE
09/20/00   WAYNE                          TREES DOWN COUNTYWIDE

600 PM    CONNERSVILLE              IN   WIND DAMAGE
09/20/00   FAYETTE                        TREES DOWN COUNTYWIDE

MJDR

Local storm report, Sep 20, 7:22 PM EDT, 1 hour 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON, OH
506 PM EDT WED SEP 20 2000

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

630 PM    3 S EATON                 OH   65 MPH TSTM WIND GUST
09/20/00   PREBLE

630 PM    DAYTON                    OH   63 MPH TSTM WIND GUST
09/20/00   MONTGOMERY

0720 PM    TROY                      OH   WIND DAMAGE
09/20/00   MIAMI                          TREES DOWN COUNTYWIDE

JDR

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 20, 8:12 PM EDT	Severe Thunderstorm Warning	ILN	Brown	43 min
Sep 20, 8:34 PM EDT	Severe Thunderstorm Warning	ILN	Clermont	41 min
Sep 20, 8:39 PM EDT	Severe Thunderstorm Warning	ILN	Pickaway, Ross	66 min
Sep 20, 8:47 PM EDT	Severe Thunderstorm Warning	ILN	Highland	43 min
Sep 20, 8:50 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Licking	40 min
Sep 20, 8:55 PM EDT	Severe Thunderstorm Warning	ILN	Brown	50 min
Sep 20, 9:14 PM EDT	Severe Thunderstorm Warning	ILN	Adams	61 min
Sep 20, 9:14 PM EDT	Severe Thunderstorm Warning	ILN	Pike	61 min
Sep 20, 9:24 PM EDT	Severe Thunderstorm Warning	ILN	Scioto	81 min
Sep 20, 9:25 PM EDT	Severe Thunderstorm Warning	ILN	Hocking	65 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2000 Every severe thunderstorm warning in 2000

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.