Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 33, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jun 30, 1990, 10:44 PM EDT for Cumberland County, Perry County, Pennsylvania. It was in force for 61 min.
The area
The counties it named.
The facts
- Issued
- Jun 30, 1990, 10:44 PM EDT (02:44 UTC)
- Expired
- Jun 30, 1990, 11:45 PM EDT
- In force
- 61 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
Counties Cumberland County, PA, Perry 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 00:00Z, 2.7 hours before the alert went out and 148 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
- 1495 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 1431 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 66 m²/s²
- 0-3 km storm-relative helicity
- 174 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 5.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KHAR 010245 RRA
SVRHAR
PAC041-061-099-010345-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HARRISBURG PA
1044 PM EDT JUN 30 1990
THE NATIONAL WEATHER SERVICE IN HARRISBURG HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1145 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTH CENTRAL PENNSYLVANIA
...CUMBERLAND...HUNTINGDON...PERRY
AT 1030 PM EDT WEATHER SERVICE RADAR IN HARRISBURG INDICATED HEAVY
RAINSHOWERS AND THUNDERSTORMS...SOME WITH POSSIBLE HAIL OVER THE
SOUTHCENTRAL MOUNTAINS...SOUTHWESTERN PENNSYLVANIA...NORTHWESTERN
PENNSYLVANIA...THE UPPER SUSQUEHANNA VALLEY...AND NORTHEASTERN
PENNSYLVANIA. SOME OF THESE STORMS HAVE ALREADY PRODUCE HAIL...WINDS
IN EXCESS OF 40 MILES AN HOUR...AND DOWN POWER LINES HAVE BEEN
REPORTED.
THESES STORMS CONTINUE MOVING TOWARDS THE EAST SOUTHEAST BETWEEN 35 TO
40 MILES AN HOUR.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE RO,AD.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, Jun 30, 5:00 PM EDT, 5 hours 44 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, 4 hours 34 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, 3 hours 59 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, 3 hours 51 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, 8:18 PM EDT | Severe Thunderstorm Warning | CTP | Bradford | 62 min |
| Jun 30, 8:51 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Juniata, Mifflin, Snyder, Union | 69 min |
| Jun 30, 8:51 PM EDT | Severe Thunderstorm Warning | CTP | Perry | 69 min |
| Jun 30, 10:19 PM EDT | Severe Thunderstorm Warning | CTP | Monroe | 41 min |
| Jun 30, 10:44 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 61 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.