Alert archive / Ohio / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 230, NWS Cleveland, OH

September 3, 2002Mahoning County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Sep 3, 2002, 5:43 PM EDT for Mahoning County, Ohio. It was in force for 47 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 3, 2002, 5:43 PM EDT (21:43 UTC)
Expired
Sep 3, 2002, 6:30 PM EDT
In force
47 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Mahoning County, OH

The radar

The Pittsburgh radar (KPBZ), 71 km from the middle of the area, began a volume at 21:44 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

TimeReportWhereRemark
Sep 3, 6:15 PM EDTThunderstorm WindBoardman, OHThunderstorm winds downed several trees.

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.

IssuedProductOfficeLasted
Sep 3, 3:40 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 9.7 hours before the alert went out and 88 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-pSkew-T log-p diagram, Pittsburgh, PA at 12:00Z on 2002-09-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 716 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 2002-09-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
716 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
1159 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
80 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

639 
WUUS51 KCLE 032143
SVRCLE
OHC099-032230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
544 PM EDT TUE SEP 3 2002

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MAHONING COUNTY IN OHIO...

* UNTIL 630 PM EDT

* AT 544 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 2 MILES SOUTHWEST OF BOARDMAN...OR ABOUT 7
  MILES SOUTHWEST OF YOUNGSTOWN...MOVING EAST AT 35 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  BOARDMAN
  CAMPBELL
  YOUNGSTOWN

HAIL UP TO ONE INCH IN DIAMETER AND WINDS GREATER THAN 58 MILES AN
HOUR ARE EXPECTED FROM THIS STORM. SEEK SHELTER IN A STURDY STRUCTURE
UNTIL THE STORM HAS PASSED.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN CLEVELAND.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 3, 3:24 PM EDTSevere Thunderstorm WarningCLECuyahoga51 min
Sep 3, 3:33 PM EDTSevere Thunderstorm WarningCLETrumbull42 min
Sep 3, 3:44 PM EDTSevere Thunderstorm WarningCLEGeauga46 min
Sep 3, 3:55 PM EDTSevere Thunderstorm WarningCLESummit50 min
Sep 3, 4:06 PM EDTSevere Thunderstorm WarningCLEMedina39 min
Sep 3, 4:09 PM EDTSevere Thunderstorm WarningCLEPortage51 min
Sep 3, 4:29 PM EDTSevere Thunderstorm WarningCLEStark46 min
Sep 3, 4:52 PM EDTSevere Thunderstorm WarningCLEWayne38 min
Sep 3, 4:55 PM EDTSevere Thunderstorm WarningCLEPortage, Summit50 min
Sep 3, 5:00 PM EDTSevere Thunderstorm WarningCLEMahoning, Trumbull45 min
Sep 3, 5:13 PM EDTSevere Thunderstorm WarningCLEStark47 min
Sep 3, 5:50 PM EDTSevere Thunderstorm WarningCLEKnox55 min
Sep 3, 6:02 PM EDTSevere Thunderstorm WarningCLEStark58 min
Sep 3, 6:10 PM EDTSevere Thunderstorm WarningCLEHolmes65 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2002Every 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.