Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 26, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jun 30, 1990, 7:15 PM EDT for Bradford County, Pennsylvania. It was in force for 20 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
- Jun 30, 1990, 7:15 PM EDT (23:15 UTC)
- Expired
- Jun 30, 1990, 7:35 PM EDT
- In force
- 20 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 30, 7:15 PM EDT | Thunderstorm Wind 0 | Bradford, 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, 11.3 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 592 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 93 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 KIPT 302315 SVRIPT PAC015-302345- BULLETIN-IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE WILLIAMSPORT PA 715 PM EDT SAT JUN 30 1990 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 745 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF NORTHCENTRAL PENNSYLVANIA...BRADFORD AT 710 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES SOUTHEAST OF TOWANDA IN BRADFORD COUNTY. THE THUNDERSTORM WAS MOVING SOUTHEAST AT 40 MPH. 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 REPORT TO THE NATIONAL WEATHER SERVICE. FJG
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, 4:21 PM EDT, 2 hours 54 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, 2 hours 50 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 15 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 5 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, 30 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, 22 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, 7:42 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton, Huntingdon | 63 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.