Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1988

Severe Thunderstorm Warning 21, NWS State College, PA

July 16, 1988Bradford County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jul 16, 1988, 6:33 PM EDT for Bradford County, Pennsylvania. It was in force for 27 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
Jul 16, 1988, 6:33 PM EDT (22:33 UTC)
Expired
Jul 16, 1988, 7:00 PM EDT
In force
27 min
Issued by
NWS State College, PA
Area
Whole counties

County Bradford 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 16, 6:40 PM EDTThunderstorm Wind 0Bradford, 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

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 10.6 hours before the alert went out and 220 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, Buffalo Intl Airport, NY at 12:00Z on 1988-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 17 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 1988-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 square meters per square second.193958Sfc1 km3 km6 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
17 J/kg
Mixed-layer CIN
-395 J/kg
Mixed-layer LCL
1194 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
155 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 KIPT 162236
SVRIPT
PAC015-162300-

BULLETIN-IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILLIAMSPORT PA
633 PM EDT SAT JUL 16 1988

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 700 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF

NORTHCENTRAL PENNSYLVANIA...BRADFORD

AT 630 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED A 
SEVERE THUNDERSTORM MOVING THROUGH SOUTHEAST BRADFORD COUNTY.

NUMEROUS TREES WERE REPORTED DOWN AND POWER OUT IN CENTRAL BRADFORD           
COUNTY.

 THESE THUNDERSTORMS WILL LIKELY PRODUCE DAMAGING
WINDS..HAIL..HEAVY RAIN AND DANGEROUS LIGHTNING. A SEVERE
THUNDERSTORM PRODUCES WINDS IN EXCESS OF 58 MPH AND/OR HAIL 3/4 INCH
OR LARGER IN DIAMETER.

IF THREATENING WEATHER APPROACHES YOU SHOULD GO TO A SAFE PLACE
IMMEDIATELY.  TO REPORT SEVERE WEATHER CALL THE NEAREST LAW
ENFORCEMENT AGENCY OR EMERGENCY MANAGEMENT OFFICE AND ASK THEM TO
RELAY YOUR REPORcT TO THE NATIONAL WEATHER SERVICE.

HM

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.

In the hours before

Special weather statement, Jul 16, 2:45 PM EDT, 3 hours 48 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILLIAMSPORT PA
245 PM EDT SAT JUL 16 1988

...SEVERE THUNDERSTORM WATCH FOR NORTHCENTRAL PENNSYLVANIA...

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDEERSTORM WATCH
FOR CLINTON...TIOGA AND BRADFORD COUNTIES IN NORTHCENTRAL PENNSYLVANIA
EFFECTIVE FROM 300 PM EDT TO 1000 PM EDT THIS SATURDAY AFTERNOON AND
EVENING.

LARGE HAIL...DANGEROUS LIGHTNING AND DAMAGING THUNDERSTORM WINDS ARE
POSSIBLE IN THESE COUNTIES.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE
FOR  SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.  PERSONS IN
THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER
CONDITIONS AND LISTEN FOR LATER STSTEMENTS AND POSSIBLE WARNINGS.

PMG
Special weather statement, Jul 16, 5:15 PM EDT, 1 hour 18 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILLIAMSPORT PA
515 PM EDT SAT JUL 16 1988

...SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR CLINTON...TIOGA
AND BRADFORD COUNTIES IN NORTH CENTRAL PENNSYLVANIA...

...VERY STRONG THUNDERSTORMS OVER WESTERN TIOGA COUNTY...

AT 510 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED NUMEROUS STRONG
THUNDERSTORMS OVER THE WESTERN HALF OF TIOGA COUNTY. THE HEAVIEST
ACTIVITY WAS NEAR ELKLAND AND WELLSBORO. ALL OF THE STORMS WERE MOVING
SOUTHEAST AT 30 MILES AN HOUR AND WILL CROSS THE REMAINDER OF TIOGA
COUNTY DURING THE NEXT HOUR.

THESE STORMS COULD PRODUCE LOCALLY HEAVY RAINS...STRONG GUSTY
WINDS...SMALL HAIL...AND DANGEROUS LIGHTNING. PERSONS LIVING IN TIOGA
COUNTY SHOULD BE ALERT TO CHANGING WEATHER CONDITIONS AND SEEK SHELTER
IMMEDIATELY IF THREATENING WEATHER APPROACHES.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT FOR
CLINTON...TIOGA AND BRADFORD COUNTIES. ALL &PERSONS SHOULD STAY TUNED
TO NOAA WEATHER RADIO OR THEIR LOCAL RADIO OR TELEVISION STATIONS FOR
FURTHER STATEMENTS.

JPD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 5:55 PM EDTSevere Thunderstorm WarningCTPClinton35 min
Jul 16, 6:03 PM EDTSevere Thunderstorm WarningCTPBradford27 min
Jul 16, 6:20 PM EDTSevere Thunderstorm WarningCTPLycoming60 min
Jul 16, 6:30 PM EDTSevere Thunderstorm WarningCTPClinton30 min
Jul 16, 7:17 PM EDTSevere Thunderstorm WarningCTPLycoming28 min
Jul 16, 7:54 PM EDTSevere Thunderstorm WarningCTPNorthumberland36 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.