Alert archive / Ohio / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 73, NWS Pittsburgh, PA

July 28, 1997Carroll County, Ohio

NWS Pittsburgh, PA issued this severe thunderstorm warning at Jul 28, 1997, 11:57 AM EDT for Carroll County, Ohio. It was in force for 63 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
Jul 28, 1997, 11:57 AM EDT (15:57 UTC)
Expired
Jul 28, 1997, 1:00 PM EDT
In force
63 min
Issued by
NWS Pittsburgh, PA
Area
Whole counties

County Carroll County, OH

The radar

The Pittsburgh radar (KPBZ), 74 km from the middle of the area, began a volume at 15:59 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

Pittsburgh, PA (KPIT), launched 12:00Z, 4.0 hours before the alert went out and 86 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 1997-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 448 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 1997-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 square meters per square second.1939Sfc1 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
448 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
813 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
84 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.

000 
TTAA00 KPIT 281554 RRA
SVRPIT
OHC019-281700-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
1157 AM EDT MON JUL 28 1997
 
THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  100 PM EDT
FOR THE FOLLOWING LOCATION...
 
IN EAST CENTRAL OHIO
 
   ...CARROLL COUNTY
 
NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWS A SEVERE THUNDERSTORM
MOVING INTO WESTERN CARROLL COUNTY.8 THIS STORM WILL PASS NEAR THE
COMMUNITIES OF LINDENTREE...DELLROY NEW HARRISBURG AND CARROLLTOWN.

The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 27, 8:30 PM EDTSevere Thunderstorm WarningPBZMuskingum60 min
Jul 27, 9:00 PM EDTSevere Thunderstorm WarningPBZGuernsey, Noble60 min
Jul 28, 11:20 AM EDTSevere Thunderstorm WarningPBZCoshocton55 min
Jul 28, 12:24 PM EDTSevere Thunderstorm WarningPBZGuernsey51 min
Jul 28, 12:50 PM EDTSevere Thunderstorm WarningPBZBelmont55 min
Jul 28, 2:48 PM EDTSevere Thunderstorm WarningPBZMonroe27 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1997Every severe thunderstorm warning in 1997

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.