Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 10, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jun 8, 1990, 4:58 PM EDT for Adams County, York County, Pennsylvania. It was in force for 47 min. 4 reports 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 8, 1990, 4:58 PM EDT (20:58 UTC)
- Expired
- Jun 8, 1990, 5:45 PM EDT
- In force
- 47 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
Counties Adams County, PA, York 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 8, 5:00 PM EDT | Thunderstorm Wind 0 | Adams, PA | |
| Jun 8, 5:00 PM EDT | Tornado F2 | York, PA | |
| Jun 8, 5:35 PM EDT | Thunderstorm Wind 0 | Adams, PA | |
| Jun 8, 5:40 PM EDT | Thunderstorm Wind 0 | York, 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
Washington/Dulle, VA (KIAD), launched 12:00Z, 9.0 hours before the alert went out and 111 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
- 54 J/kg
- Mixed-layer CIN
- -251 J/kg
- Mixed-layer LCL
- 1053 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 239 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 082058 RRA
SVRHAR
PAC001-133-082145-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HARRISBURG PA
458 PM EDT FRI JUN 8 1990
THE NATIONAL WEATHER SERVICE IN HARRISBURG HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 545 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTH CENTRAL PENNSYLVANIA
...NORTHERN ADAMS...NORTHERN YORK
AT 450 PM EDT RADAR WAS OBSERVINB A SEVERE THUNDERSTORM IN CUMBERLAND
COUNTY...JUST SOUTH OF NEWVILLE IN CUMBERLAND. REPORTS OF 1/2 HAIL
HAVE BEEN RECEIVED ALONG THE CUMBERLAND/ADAMS COUNTY LINE. THIS STORM
WASMOVING TO THE EAST SOUTHEAST AT 40 TO 45 MILES AN HOUR.
THIS IS A DANGEROUS STORM. rIF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.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 8, 12:39 PM EDT, 4 hours 19 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HARRISBURG PA ISSUED 1230 PM EDT FRI JUN 8 1990 FLASH FLOOD WATCH UNTIL MIDNIGHT FOR CENTRE,MIFFLIN, JUNIATA, HUNTINGDON FULTON, AND FRNAKLIN COUNTIES. AT 1230 AM THE NATIONAL WEATHER SERVICE RADAR IN HARRISBURG SHOWED AN AREA OF DECREASING SHOWERS AND THUNDERSTORMS OVER THE EASTERN PORTIONS OF PA. ACTIVITY HAS BECOME WIDLY SCATTERED IN THE WESTERN AND NORTHERN AREAS OF THE STATE. MOST ACTIVITY IS IN THE EAST FROM THE NORTHEAST CORNER SOUTH THROUGH THE POCONOS, THE EAST CENTRAL INTO THE SOUTHEAST CORNER. OTHER SHOWERS AND THUNDERSTORMS ARE IN SOUTHERN CAMBRIA AND NORTHERN SOMERSET COUTNIES IN THE SOUTHWESTERN MOUNTAINS. A&LSO IN ELK, CAMERON, CLINTON, LYCOMING , UNION AND NORTHUMBERLAND COUNTIES IN THE NORTHERN PORTIONS. THE SHOWERS AND THUNDERSTORMS WERE MOVING TO THE EAST AT ABOUT 50 MPH. WSO HAR DH
Special weather statement, Jun 8, 3:09 PM EDT, 1 hour 49 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HARRISBURG PA ISSUED 300 PM EDT FRI JUN 8 1990 FLASH FLOOD WATCH UNTIL MIDNIGHT FOR CENTRE,MIFFLIN, JUNIATA, HUNTINGDON FULTON, AND FRNAKLIN COUNTIES. AT 300 PM THE NATIONAL WEATHER SERVICE RADAR IN HARRISBURG SHOWED SOME STRONG THUNDERSTORMS IN BLAIR AND SOUTHWESTERN CENTRE COUNTIES. HEAVIEST WAS IN BLAIR AROUND THE HOILDAYSBURG AREA. THE THUNDERSTORMS COULD BE PRODUCING LOCALLY HEAVY RAINS, GUSTY WINDS AND HAIL. THE THUNDERSTORMS ARE MOVING TO THE EAST ATBOUT 40 TO 45 MPM. PERSONS IN BLAIR, SOUTHERN CENTRE AND HUNTINGDON COUNTIES SHOULD BE ON THE LOOKOUT FOR THESE STORMS AND TAKE NESSARY ACTION IF THEY APPROACH YOUR LOCATION. ALSO PERSONS IN MIFFLIN AND JUNIATA COUNTIES SHOULD BE ON THE LOOKOUT FOR THESE STORMS BETWEEN 330 AND 4 PM. WSO HAR DH
Special weather statement, Jun 8, 4:46 PM EDT, 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HARRISBURG PA.
445 PM EDT FRI JUN 8 1990
...SEVERE THUNDERSTORM WARNING FOR CUMBERLAND COUNTY UNTIL
515 PM THIS EVENING...HEAVY THUNDERSTORMS IN PERRY COUNTY...
AT 445 PM EDT THE HARRISBURG WEATHERRADAR WAS OBSERVING A SEVERE
THUNDERSTORM IN CUMBERLAND COUNTY...BETWEEN MT HOLLY AND NEWVILLE.
THIS STORM WAS MOVING TO THE EAST AT 40 TO 45 MILES AN HOUR. IF THIS
STORM HOLDS ITS INTENSITY IT WILL MOVE INTO NORTHERN YORK AND WESTERN
DAUPHIN COUNTIES BETWEEN 5 AND 515 THIS EVENING.
ADDITIONAL HEAVY STORMS WERE ALSO NOTED ACROSS PERRY COUNTY...MOVING
EAST AT 40 MILES AN HOUR.
END
WSO HAR CURLL
WThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 4:13 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 62 min |
| Jun 8, 5:27 PM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 48 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.