Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 25, NWS State College, PA

September 17, 1987Lancaster County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Sep 17, 1987, 7:19 PM EDT for Lancaster County, Pennsylvania. It was in force for 61 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 17, 1987, 7:19 PM EDT (23:19 UTC)
Expired
Sep 17, 1987, 8:20 PM EDT
In force
61 min
Issued by
NWS State College, PA
Area
Whole counties

County Lancaster 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
Sep 17, 8:00 PM EDTThunderstorm Wind 0Lancaster, 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 text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Sep 17, 3:06 PM EDT, 4 hours 13 minutes before
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Special weather statement, Sep 17, 4:06 PM EDT, 3 hours 13 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HARRISBURG PA.
400 PM EDT  THU  SEP 17 1987

...VERY HEAVY THUNDERSTORMS MOVING TOWARDS THE MIDDLE AND LOWER
SUSQUEHANNA VALLEY...

THE HARRIBURG WEATHER RADAR AT 345 PM EDT WAS OBSERVING VERY HEAVY
THUNDERSTORMS THAT EXTENDED FROM CENTRE COUNTY SOUTH INTO HUNTINGDON
AND MIFFLIN COUNTIES.

THIS AREA OF THUNDERSTORMS HAS MOVING EAST AT 25 TO 30 MPH AND WILL BE
INTO THE WESTERN PORTION OF THE MIDDLE AND LOWER SUSQUEHANNA VALLEY BY
430 PM EDT. HEAVY RAINS...FREQUENT LIGHTNING AND GUSTY WINDS
HAVE BEEN REPORTED WITH THESE STORMS.

POEPLE IN THE ABOVE LISTED COUNTIES SHOULD BE ALERT TO RAPIDLY
CHANGING WEATHER CONDITIONS UNTIL 500 PM EDT.

WSO HAR NEFF
Special weather statement, Sep 17, 5:10 PM EDT, 2 hours 9 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HARRISBURG PA.
505 PM EDT  THU  SEP 17 1987

...VERY HEAVY THUNDERSTORMS IN MIDDLE AND NORTHERN PORTION OF THE
LOWER SUSQUEHANNA VALLEY...

THE HARRIBURG WEATHER RADAR AT 455 PM EDT WAS OBSERVING VERY HEAVY
THUNDERSTORMS THAT EXTENDED FROM MONTOUR AND NORTHUMBERLAND COUNTIES
SOUTH INTO DAUPHIN COUNTY.

A SECOND AREA OF VERY HEAVY THUNDERSTORM WAS LOCATED IN NORTHWESTERN
HUNTINGDON AND CENTRAL PORTION OF CENTRE COUNTY.

RAINFALL AMOUNTS FROM THESE THUNDERSTORMS HAVE THE POTENTIAL OF
PRODUCING FLOODING IN LOW LYING AREAS.

THE STORMS CONTINUE TO MOVE EAST AT 25 TO 35 MPH.

WSO HAR NEFF
Special weather statement, Sep 17, 5:56 PM EDT, 1 hour 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HARRISBURG PA.
550 PM EDT THU SEP 17 1987

...VERY HEAVY THUNDERSTORMS CONTINUE MOVING RADIPLY EAST FROM THE
WESTERN MOUNTAINS THROUGH THE SUSQUEHANNA VALLEY...

AT 540 PM EDT THE NATIONAL WEATHER SERVICE RADAR WAS OBSERVING TWO
CLUSTERS OF VERY HEAVY THUNDERSTORMS.  THE FIRST CLUSTER WAS
LOCATED FROM COLUMBIA COUNTY SOUTH INTO SCHUYLKILL...LEBANON AND
DAUPHIN COUNTIES.

A SECOND CLUSTER OF VERY HEAVY THUNDERSTORMS WAS LOCATED IN MIFFLIN
AND HUNTINGDON COUNTIES.

AS THESE THUNDERSTORMS MOVE EAST AT 25 TO 30 MPH...THEY WILL BE
ACCOMPANIED BY BRIEF HEAVY DOWNPOURS...POSSIBLY CAUSING FLOODING IN
AREAS OF POOR DRAINAGE...GUSTY SURFACE WINDS AND POSSIBLY SMALL HAIL.

RESIDENTS SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS
UNTIL 700 PM EDT.
WSO HAR FITZSIMMONS
Special weather statement, Sep 17, 6:59 PM EDT, 20 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HARRISBURG PA.
655 PM EDT THU SEP 17 1987

...VERY HEAVY THUNDERSTORMS OCCURRING OVER THE SOUTH CENTRAL MOUNTAINS
AND SOUTH CENTRAL PENNSYLVANIA...

AT 650 PM EDT THE NATIONAL WEATHER SERVICE RADAR WAS INDICATING AN AREA
OF VERY HEAVY THUNDERSTORMS EXTENDING FROM CENTER COUNTY SOUTH INTO
HUNTINGDON COUNTY.  THE STRONGEST STORMS WERE LOCATED JUST EAST OF
RAYSTOWN LAKE AND BETWEEN BELLEVILLE AND LEWISTON IN MIFFLIN COUNTY.

AS THESE THUNDERSTORMS CONTINUE TO THE EAST AT 25 TO 30 MPH...THEY
WILL BE ACCOMPANIED BY BRIEF HEAVY DOWNPOURS POSSIBLY CAUSING FLOODING
IN AREAS OF POOR DRAINAGE...GUSTY SURFACE WINDS AND FREQUENT LIGHTNING.

RESIDENTS IN THESE COUNTIES AND IN THE COUNTIES OF UNION...SYNDER...
JUNIATA AND PERRY COUNTIES CAN EXPECT RAPIDLY CHANGING WEATHER CONDITION
UNTIL 800 PM EDT

WSO HAR FITZSIMMONS
Special weather statement, Sep 17, 7:04 PM EDT, 15 minutes before
SPECIAL WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE HARRISBURG PA.
655 PM EDT THU SEP 17 1987

...VERY HEAVY THUNDERSTORMS OCCURRING OVER THE SOUTH CENTRAL MOUNTAINS
AND SOUTH CENTRAL PENNSYLVANIA...

AT 650 PM EDT THE NATIONAL WEATHER SERVICE RADAR WAS INDICATING AN AREA
OF VERY HEAVY THUNDERSTORMS EXTENDING FROM CENTER COUNTY SOUTH INTO
HUNTINGDON COUNTY.  THE STRONGEST STORMS WERE LOCATED JUST EAST OF
RAYSTOWN LAKE AND BETWEEN BELLEVILLE AND LEWISTON IN MIFFLIN COUNTY.

AS THESE THUNDERSTORMS CONTINUE TO THE EAST AT 25 TO 30 MPH...THEY
WILL BE ACCOMPANIED BY BRIEF HEAVY DOWNPOURS POSSIBLY CAUSING FLOODING
IN AREAS OF POOR DRAINAGE...GUSTY SURFACE WINDS AND FREQUENT LIGHTNING.

RESIDENTS IN THESE COUNTIES AND IN THE COUNTIES OF UNION...SYNDER...
JUNIATA AND PERRY CAN EXPECT RAPIDLY CHANGING WEATHER CONDITION
UNTIL 800 PM EDT.

WSO HAR FITZSIMMONS

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 1987Every severe thunderstorm warning in 1987

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.