Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 27, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jun 30, 1990, 7:42 PM EDT for Franklin County, Fulton County, Huntingdon County, Pennsylvania. It was in force for 63 min.
The area
The counties it named.
The facts
- Issued
- Jun 30, 1990, 7:42 PM EDT (23:42 UTC)
- Expired
- Jun 30, 1990, 8:45 PM EDT
- In force
- 63 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
Counties Franklin County, PA, Fulton County, PA, Huntingdon County, PA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 11.7 hours before the alert went out and 135 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.
- Mixed-layer CAPE
- 73 J/kg
- Mixed-layer CIN
- -130 J/kg
- Mixed-layer LCL
- 1112 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KHAR 302345 RRA
SVRHAR
PAC027-055-057-061-010045-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HARRISBURG PA
742 PM EDT SAT JUN 30 1990
THE NATIONAL WEATHER SERVICE IN HARRISBURG HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 845 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN CENTRAL PENNSYLVANIA
...CENTRE
IN SOUTH CENTRAL PENNSYLVANIA
...FRANKLIN...FULTON...HUNTINGDON
AT 635 PM WEATHER SERVICE RADAR IN HARRISBURG INDICATED AN AREA OF
HEAVY RAINSHOWERS AND THUNDERSTORMS EXTENDING FROM JUST SOUTH OF
BRADFORD PENNSYLVANIA SOUTH TO ALLEGANY COUNTY IN NORTHWESTERN
MARYLAND...AND FROM PITTSBURGH PENNSYLVANIA EAST TO ALTOONA
PENNSYLVANIA. SCATTERED THUNDERSTORMS WERE ALSO OVER WILKES-BARRE AND
ALLENTOWN PENNSYLVANIA. HAIL...WINDS IN EXCESS OF 40 MILES AN HOUR AND
DOWN POWER LINES HAVE ALREADY BEEN REPORTED ALONG WITH THESE STORMS.
THESE RAINSHOWERS AND THUNDERSTORMS ARE ALL MOVING EAST SOUTHEAST AT
35 TO 40 MILES AN HOUR.
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUN&DERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
CRUZWhat 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, Jun 30, 4:21 PM EDT, 3 hours 21 minutes before
PA009-013-302300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HARRISBURG PA. 425 PM EDT SAT JUN 30 1990 ...SHOWERS AND THUNDERSTORM WERE WIDELY SCATTERED JUST WEST OF THE LOWER SUSQUEHANNA VALLEY AT 400 PM... AT 400 PM EDT THE NATIONAL WEATHER SERVICE RADAR IN HARRISBURG WAS SHOWING WIDELY SCATTERED SHOWERS AND THUNDERSTORMS OVER PORTIONS OF WESTERN PENNSYLVANIA AND THE NORTH AND SOUTHCENTRAL MOUNTAINS. THESE SHOWERS AND THUNDERSTORMS SHOULD BE ENTERING INTO THE LOWER SUSQUEHANNA VALLEY WITHIN THE NEXT TWO HOURS. SOME OF THE STRONGER STORMS PRODUCING HEAVY DOWNPOURS WERE LOCATED OVER CAMBRIA ...BLAIR...AND HUNTINGDON COUNTIES. PERSONS LIVING IN PERRY...CUMBERLAND...AND ADAMS COUNTIES SHOULD BE ALERT TO LOCAL WEATHER DEVELOPMENTS AND TAKE SHELTER IF THREATENING WEATHER IS SIGHTED. WSO HAR CRUZ
Special weather statement, Jun 30, 4:25 PM EDT, 3 hours 17 minutes before
PA009-013-302300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HARRISBURG PA. 425 PM EDT SAT JUN 30 1990 ...SHOWERS AND THUNDERSTORM WERE WIDELY SCATTERED JUST WEST OF THE LOWER SUSQUEHANNA VALLEY AT 400 PM... AT 400 PM EDT THE NATIONAL WEATHER SERVICE RADAR IN HARRISBURG WAS SHOWING WIDELY SCATTERED SHOWERS AND THUNDERSTORMS OVER PORTIONS OF WESTERN PENNSYLVANIA AND THE NORTH AND SOUTHCENTRAL MOUNTAINS. THESE SHOWERS AND THUNDERSTORMS SHOULD BE ENTERING INTO THE LOWER SUSQUEHANNA VALLEY WITHIN THE NEXT TWO HOURS. SOME OF THE STRONGER STORMS PRODUCING HEAVY DOWNPOURS WERE LOCATED OVER CAMBRIA ...BLAIR...AND HUNTINGDON COUNTIES. PERSONS LIVING IN PERRY...CUMBERLAND...ADAMSAND HUNTINGDON COUNTIES SHOULD BE ALERT TO LOCAL WEATHER DEVELOPMENTS AND TAKE SHELTER IF THREATENING WEATHER IS SIGHTED. THE STORMS WERE MOVING TOWARDS THE SOUTHEAST AT 40 MILES AN HOUR WSO HAR CRU
Special weather statement, Jun 30, 5:00 PM EDT, 2 hours 42 minutes before
PAZ007-008-014-302200 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLIAMSPORT PA 500 PM EDT SAT JUN 30 1990 ...SEVERE THUNDERSTORM WATCH CONTINUES UNTIL 1000 PM EDT FOR CLINTON COUNTY IN NORTHCENTRAL PENNSYLVANIA... AT 455 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED THUNDERSTORMS WITH HEAVY DOWNPOURS OVER SOUTHWESTERN BRADFORD AND WESTERN SULLIVAN COUNTIES. THESE THUNDERSTORMS WERE MOVING EAST AT 40 MPH AND THEY WILL BE MOVING INTO SUSQUEHANNA...WYOMING AND LUZERNE COUNTIES BY 600 PM EDT. ELSEWHERE...STRONG THUNDERSTORMS WERE DEVELOPING OVER SOUTHWEST AND SOUTHCENTRAL PENNSYLVANIA. THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT 40 MPH AND THEY COULD BEGIN TO EFFECT PARTS OF CENTRAL AND NORTHCENTRAL PENNSYLVANIA DURING THE NEXT COUPLE OF HOURS. PERSONS IN AND CLOSE TO THE SEVERE THUNDERSTORM WATCH AREA ARE ADVISED TO BE ALERT TO LOCAL WEATHER DEVELOPMENTS AND TAKE SHELTER IF THREATENING WEATHER IS SIGHTED. FJG
Special weather statement, Jun 30, 6:10 PM EDT, 1 hour 32 minutes before
PAZ007-008-014-302300 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLIAMSPORT PA 610 PM EDT SAT JUN 30 1990 ...SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR ALL OF NORTHCENTRAL PENNSYLVANIA WITH THE EXCEPTION OF BRADFORD COUNTY UNTIL 1100 PM EDT... AT 610 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED WIDELY SCATTERED THUNDERSTORMS OVER PARTS OF NORTHCENTRAL PENNSYLVANIA. THUNDERSTORMS WITH HEAVY DOWNPOURS EXTENDED FROM CAMMAL TO JERSEY SHORE IN WESTERN LYCOMING COUNTY. ELSEWHERE...STRONG THUNDERSTORMS WERE DEVELOPING OVER SOUTHWEST AND SOUTHCENTRAL PENNSYLVANIA. THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT 40 MPH AND THEY COULD BEGIN TO EFFECT PARTS OF CENTRAL AND NORTHCENT^RAL PENNSYLVANIA DURING THE NEXT COUPLE OF HOURS. PERSONS IN AND CLOSE TO THE SEVERE THUNDERSTORM WATCH AREA ARE ADVISED TO BE ALERT TO LOCAL WEATHER DEVELOPMENTS AND TAKE SHELTER IF THREATENING WEATHER IS SIGHTED. FJG
Special weather statement, Jun 30, 6:45 PM EDT, 57 minutes before
PAZ007-008-014-010000 SPECIAL WEATHER STATEMENT...CORRECTION... NATIONAL WEATHER SERVICE WILLIAMSPORT PA 645 PM EDT SAT JUN 30 1990 ...SEVERE THUNDERSTORM WATCH CONTINUES FOR ALL OF NORTHCENTRAL PENNSYLVANIA WITH THE EXCEPTION OF BRADFORD COUNTY UNTIL 1100 PM EDT... AT 645 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A STRONG THUNDERSTORM OVER TOWANDA IN BRADFORD COUNTY. THIS THUNDERSTORM MAY CONTAIN STRONG WINDS...HAIL...DANGEROUS LIGHTNING AND HEAVY DOWNPOURS. THIS THUNDERSTORMS WAS MOVING EAST AT 40 MPH AND IT SHOULD BE MOVING INTO SUSQUEHANNA COUNTY BY 715 PM EDT. ELSEWHERE WIDELY SCATTERED THUNDERSTORMS WERE OCCURING OVER PARTS OF NORTHCENTRAL PENNSYLVANIA. PERSONS IN AND CLOS|E TO THE SEVERE THUNDERSTORM WATCH AREA ARE ADVISED TO BE ALERT TO LOCAL WEATHER DEVELOPMENTS AND TAKE SHELTER IF THREATENING WEATHER IS SIGHTED. COR TO ADD COUNTY AFTER SUSQUEHANNA FJG
Special weather statement, Jun 30, 6:53 PM EDT, 49 minutes before
PA008-009-013-014-010300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HARRISBURG PA. 650 PM EDT SAT JUN 30 1990 ...SEVERE THUNDERSTORM WATCH UNTIL 1100 PM TONIGHT FOR THE LOWER SUSQUEHANNA VALLEY... ...SEVERE THUNDERSTORM WARNING UNTIL 730 PM FOR FRANKLIN...ADAMS...CUMBERLAND ...AND YORK COUNTIES... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH EFFECTIVE UNTIL 1100 PM TONIGHT FOR THE LOWER SUSQUEHANNA VALLEY...INCLUDING CENTRE... FULTON...HUNTINGDON...JUNIATA...MIFFLIN...NORTHUMBERLAND...MONTOUR...SYNDER... UNION...ADAMS...CUMBERLAND...DAUPHIN...FRANKLIN...LANCASTER...LEBANNON...PERRY ...AND YORK COUNTIES. AT 630 PM WEATHER SERVICE RADAR IN HARRISBURG INDICATED WIDELY SCATTERED RAINSHOWERS AND THUNDERSTORMS OVER PORTIONS OF WESTERN PENNSYLVANIA...THE NORTHERN AND SOUTHCENTRAL MOUTAINS...THE SOUTHWESTERN PORTIONS OF THE LOWER SUSQUEHANNA VALLEY...THE NORTHEASTERN PORTIONS OF THE MIDDLE SUSQUEHANNA VALLEY. ALL OF THE ACTIVITY WAS MOVING TOWARDS THE EAST SOUTHEAST AT 35 TO 40 MILES AN HOUR. REMEMBER THAT A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORM DEVELOPMENT IN AND NEAR THE WATCH AREA. KEEP ALERT TOx LOCAL WEATHER CHANGES AND TAKE SHELTER IF THREATENING WEATHER IS SIGHTED. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TELEVISION STATIONS FOR FURTHER WATCHES...WARNINGS...OR STATEMENTS. CRUZ
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 5:21 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, York | 2 hr |
| Jun 30, 5:21 PM EDT | Severe Thunderstorm Warning | CTP | Franklin | 2 hr |
| Jun 30, 7:15 PM EDT | Severe Thunderstorm Warning | CTP | Bradford | 20 min |
| Jun 30, 7:42 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 63 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1990Every severe thunderstorm warning in 1990
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.