Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 13, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jun 25, 1989, 6:19 PM EDT for Juniata County, Snyder County, Pennsylvania. It was in force for 41 min.
The area
The counties it named.
The facts
- Issued
- Jun 25, 1989, 6:19 PM EDT (22:19 UTC)
- Expired
- Jun 25, 1989, 7:00 PM EDT
- In force
- 41 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
Counties Juniata County, PA, Snyder 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, 10.3 hours before the alert went out and 190 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
- 399 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 719 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KHAR 252221
SVRHAR
PAC067-109-252300-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HARRISBURG PA
619 PM EDT SUN JUN 25 1989
THE NATIONAL WEATHER SERVICE IN HARRISBURG HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 700 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN CENTRAL PENNSYLVANIA
...EASTERN JUNIATA...SOUTHERN SNYDER
RADAR WAS SHWOING A SEVERE THUNDERSTORM IN SOUTHERN SNYDER COUNTY...
JUST SOUTH OF MIDDLEBURG.
HAIL WAS INDICATED ON RADAR.
THIS STORM WAS MOVING TO THE SOUTH AT 20 TO 25 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 THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.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
Local storm report, Jun 25, 3:52 PM EDT, 2 hours 27 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE WILLIAMSPORT PA 350 PM EDT SUN JUN 25 1989 EVENT DATE/TIME COUNTY LOCATION WND 6/24/89 1615 EDT WESTERN SULLIVAN 1-2 WEST HILLSGROVE DAMAGE STRAIGHT LINE WIND DAMAGE...AT LEAST TWO LARGE TREES UPROOTED...FELL ACROSS POWER LINES ON PROCTOR ROAD NORTHWEST OF TOWN CENTER. ONE TREE FELL ACROSS LOYALSOCK CREEK SOUTHWEST OF TOWN CENTER. SULLIVAN COUNTY EMERGENCY MANAGEMENT& COORDINATOR ALSO REPORTS SOME ROOF DAMAGE AND ELECTRICAL BOXES PULLED AWAY FROM HOUSES. WTB
Special weather statement, Jun 25, 3:59 PM EDT, 2 hours 20 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HARRISBURG PA. 400 PM EDT SUN JUN 25 1989 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR ALL THE LOWER SUSQUEHANNA VALLEY UNTIL 10 PM THIS EVENING.... AT 355 PM EDT THE HARRISBURG WEATHER RADAR WAS OBSERVING HEAVY THUNDERSTORMS SCATTERED ACROSS PORTIONS OF COLUMBIA AND NORTHUMBERLAND COUNTIES WITH THE HEAVIEST STORMS IN THE BERWICK..BLOOMSBURG AREA. ABOTHER CLUSTER OF HEAVY STORMS WAS ALSO IN EVIDENCE FROM NEAR SCHUYKILL HAVN TO AROUND READING. THESE STORMS WERE MOVING TO THE SOUTH AT 20 TO 25 MILES AN HOUR. GUSTY WINDS...HAIL AND HEAVY RAINS WILL ACCOMPANY THE PASSAGE OF THESE STORMS. ADDITIONAL THUNDERSTORMS WERE P-OPPING UP IN RADAM FASHION ACROSS MUCH OF SUSQUEHANNA VALLEY AND CENTRAL MOUNTAINS OF PENNSYLVANIA. KEEP TUNED TO NOAA WEATHER RADAR OR YOUR LOCAL RADIO OR TV STATION FOR ADDITIONAL UPDATES OR WARNINGS. CURLL WSO HARRISBURG
Special weather statement, Jun 25, 4:30 PM EDT, 1 hour 49 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLIAMSPORT PA 430 PM EDT SUN JUN 25 1989 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR NORTH CENTRAL PENNSYLVANIA UNTIL 10 PM THIS EVENING... AT 425 PM NATIONAL WEATHER SERVICE RADAR SHOWED SHOWERS AND THUNDERSTORMS OVER THE WESTERN PORTION OF LYCOMING COUNTY AND THE SOUTHWEST PORTION OF CLINTON COUNTY. THE HEAVIEST RAINFALL WAS OCCURRING BETWEEN WILLIAMSPORT AND JERSEY SHORE AND OVER LOCK HAVEN. THESE SHOWERS AND THUNDERSTORMS WERE MOVING SOUTH AT 20 TO 25 MILES AND HOUR AND WILL MOVE INTO NORTHERN UNION AND EASTERN CENTRE COUNTIES BY 500 PM. PERSONS IN THESE AREAS SHOULD BE ALERT TO POSSIBLE SEVERE WEATHER AND IF SIGHTED BE PREP\ARED TO MOVE TO A PLACE OF SAFETY. JPD
Special weather statement, Jun 25, 5:45 PM EDT, 34 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLIAMSPORT PA 545 PM EDT SUN JUN 25 1989 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR NORTH CENTRAL PENNSYLVANIA UNTIL 10 PM THIS EVENING... AT 540 PM NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF SHOWERS AND THUNDERSTORMS STRETCHING FROM NORTHWESTERN CLINTON COUNTY SOUTHEAST TO NORTHERN MIFFLIN COUNTY AND WESTERN SNYDER COUNTY. THE HEAVIEST RAINFALL WAS OCCURRING JUST EAST OF STATE CAMP IN CLINTON COUNTY AND NEAR SAYRES DAM AND MILLHEIM IN CENTRE COUNTY. THESE SHOWERS AND THUNDERSTORMS WERE MOVING SOUTH AT 20 TO 25 MILES AND HOUR. SOME OF THE THUNDERSTORMS MAY PRODUCE STRONG GUSTY WINDS...HAIL AND HEAVY DOWNPOURS. PERSONS IN THESE AREAS SHOULD BE ALERT TO POSSIBLE SEVERE WEATHER AND IF SIGHTED BE PREPARED TO MOVE TO A PLACE OF SAFETY. JPD
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 8:29 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 31 min |
| Jun 24, 9:03 PM EDT | Severe Thunderstorm Warning | CTP | Fulton | 42 min |
| Jun 25, 4:21 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 54 min |
| Jun 25, 4:30 PM EDT | Severe Thunderstorm Warning | CTP | Berks | 60 min |
| Jun 25, 5:08 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 67 min |
| Jun 25, 5:13 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 47 min |
| Jun 25, 6:30 PM EDT | Severe Thunderstorm Warning | CTP | Perry | 30 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1989Every severe thunderstorm warning in 1989
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.