Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1988

Severe Thunderstorm Warning 33, NWS State College, PA

July 17, 1988Northampton County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jul 17, 1988, 4:58 PM EDT for Northampton County, Pennsylvania. It was in force for 62 min. 2 reports 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
Jul 17, 1988, 4:58 PM EDT (20:58 UTC)
Expired
Jul 17, 1988, 6:00 PM EDT
In force
62 min
Issued by
NWS State College, PA
Area
Whole counties

County Northampton County, PA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Jul 17, 5:18 PM EDTThunderstorm Wind 50Northampton, PA
Jul 17, 5:55 PM EDTThunderstorm Wind 52Northampton, PA

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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 12:00Z, 9.0 hours before the alert went out and 160 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, Atlantic City In, NJ at 12:00Z on 1988-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1047 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, Atlantic City In, NJ at 12:00Z on 1988-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 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
1047 J/kg
Mixed-layer CIN
-143 J/kg
Mixed-layer LCL
900 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.9

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 8:49 PM EDTSevere Thunderstorm WarningCTPCarbon, Schuylkill56 min
Jul 16, 9:00 PM EDTSevere Thunderstorm WarningCTPDauphin, Lebanon30 min
Jul 16, 9:29 PM EDTSevere Thunderstorm WarningCTPBerks61 min
Jul 16, 9:34 PM EDTSevere Thunderstorm WarningCTPLebanon26 min
Jul 17, 3:42 PM EDTSevere Thunderstorm WarningCTPNorthumberland33 min
Jul 17, 3:43 PM EDTSevere Thunderstorm WarningCTPColumbia62 min
Jul 17, 4:14 PM EDTSevere Thunderstorm WarningCTPBerks, Schuylkill61 min
Jul 17, 4:14 PM EDTSevere Thunderstorm WarningCTPCarbon61 min
Jul 17, 4:45 PM EDTSevere Thunderstorm WarningCTPBerks, Lehigh60 min
Jul 17, 5:20 PM EDTSevere Thunderstorm WarningCTPNorthampton70 min
Jul 17, 6:06 PM EDTSevere Thunderstorm WarningCTPLancaster39 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 1988Every severe thunderstorm warning in 1988

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.