Alert archive / Ohio / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 176, NWS Wilmington, OH

August 7, 2000Franklin County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Aug 7, 2000, 2:00 AM EDT for Franklin County, Ohio. It was in force for 30 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: Aug 7, 2000, 2:00 AM EDT (06:00 UTC)
Expired: Aug 7, 2000, 2:30 AM EDT
In force: 30 min
Issued by: NWS Wilmington, OH
Area: Whole counties

County Franklin County, OH

The radar

The Cincinnati radar (KILN), 93 km from the middle of the area, began a volume at 05:59 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 00:00Z, 6.0 hours before the alert went out and 90 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: 1953 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 1226 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 174 m²/s²
0-3 km storm-relative helicity: 267 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 14.4

Open this sounding in Storm Lab

The text

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

859 
WUUS51 KILN 070600
SVRILN
OHC049-070630-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
200 AM EDT MON AUG 7 2000

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  FRANKLIN COUNTY IN CENTRAL OHIO...

* UNTIL 230 AM EDT...

* AT 200 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM 4 MILES WEST OF LAKE DARBY...OR ABOUT OVER
  JEFFERSON...MOVING EAST AT 50 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  UPPER ARLINGTON...
  LAKE DARBY...
  GAHANNA...
  COLUMBUS...
  BEXLEY...

THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS.

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AWAY FROM CREEK BEDS AND OTHER FLOOD PRONE AREAS. REMEMBER...A SEVERE
THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DAMAGING WINDS IN
EXCESS OF 55 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN.

$$
RANDALL

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 Aug 6, 11:35 PM EDT, 2 hours 25 minutes earlier.

Area forecast discussion, Aug 6, 11:35 PM EDT, 2 hours 25 minutes before

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE WILMINGTON OH
1135 PM EDT SUN AUG 6 2000

REGIONAL RADAR IMGRY SHWS MCS WITH TRACKING E NR 50KTS THRU NRN OH
WITH TAIL EXTENDING SWRD FM MNN THRU IND. THIS TAIL HS DVLPD FM
OUTFLOW FM MCS COMPLEX AND IS BEING SUPPORTED BY FAVORABLE 35/40KT
LLJ. ECHOES ARE TRAINING FROM WEST TO EAST. AMS IS VRY MOIST WITH
SFC DWPTS IN MID 70S AND PW/S ARE RUNNING ARND 2.0 INCHES. ISOLD
SVR WX THREAT WL CONT BUT MAIN THREAT APPEARS TO BE HVY RAIN DUE
TO TRAINING ECHOES WITH CELLS MOVG PARALLEL TO UPR FLO. IR SATL
IMGRY SHWS COOLING TOPS OVR CNTRL IN. RAINFALL RATES OF 1.0 TO 1.5
INCHES WL LKLY CAUSE SOME FLOODING WHERE ECHOES TRAIN. WL UPDATE
ZONES WITH FFA FOR PTNS OF E CNTRL IN THRU DAY AREA INTO CMH AREA.
WL ALSO DROP CTYS ACRS NRN MIAMI VLY FM SVR TSTM WATCH NUMBER 652
WHICH EXPIRES AT MIDNIGHT.

.ILN...NONE.
RANDALL

In the hours before

Local storm report, Aug 7, 1:44 AM EDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
144 AM EDT MON AUG 07 2000

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

1220 AM    CONNERSVILLE              IN   WIND DAMAGE
08/07/00   FAYETTE                        COUPLE OF TREES DOWN
                                          NEAR SR 1 NORTH OF
                                          CONNERSVILLE. REPORTED
                                          BY LAW ENFORCEMENT
                                          OFFICIAL.

1245 AM    COUNTYWIDE                OH   WIND DAMAGE
08/07/00   PREBLE                         TREES DOWN AROUND
                                          COUNTY. REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

0110 AM    DAYTON                    OH   62 MPH TSTM GUST
08/07/00   MONTGOMERY                     MEASURED GUST DOWNTOWNF

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 11:04 PM EDT	Severe Thunderstorm Warning	ILN	Shelby	41 min
Aug 7, 12:29 AM EDT	Severe Thunderstorm Warning	ILN	Preble	46 min
Aug 7, 12:50 AM EDT	Severe Thunderstorm Warning	ILN	Montgomery	50 min
Aug 7, 1:10 AM EDT	Severe Thunderstorm Warning	ILN	Greene	50 min
Aug 7, 1:20 AM EDT	Severe Thunderstorm Warning	ILN	Clark	25 min
Aug 7, 1:39 AM EDT	Severe Thunderstorm Warning	ILN	Madison	36 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.