Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 4, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Apr 13, 1994, 5:19 PM EDT for York County, Pennsylvania. It was in force for 56 min.
The area
The counties it named.
The facts
- Issued
- Apr 13, 1994, 5:19 PM EDT (21:19 UTC)
- Expired
- Apr 13, 1994, 6:15 PM EDT
- In force
- 56 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
County York County, PA
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 9.3 hours before the alert went out and 122 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
- 524 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 217 m²/s²
- 0-3 km storm-relative helicity
- 256 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 132119 SVRHAR PAC133-132215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HARRISBURG PA 519 PM EDT WED APR 13 1994 THE NATIONAL WEATHER SERVICE IN HARRISBURG HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 615 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION...... IN SOUTH CENTRAL PENNSYLVANIA ...YORK COUNTY AT 515 PM NATIONAL WEATHER SERVICE RADAR SHOWED A POSSIBLE SEVERE THUNDERSTORM MOVING FROM NORTH CENTRAL MARYLAND INTO YORK COUNTY. LARGE HAIL IS LIKELY WITH THIS STORM AS IT MOVES OVERHEAD. THE POSSIBLE SEVERE THUNDERSTORM WAS MOVING TOWARD THE EAST-NORTHEAST AT 30 MILES AN HOUR. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. DPM/GRC & NNNN
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, Apr 13, 2:10 PM EDT, 3 hours 9 minutes before
PAZ012-037-038-041-042-045-046-049>052-132000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLIAMSPORT PA 210 PM EDT WED APR 131994 ...THUNDERSTORMS WITH GUSTY WINDS APPROACHING NORTHCENTRAL PENNSYLVANIA... AT 200 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED AN AREA OF SHOWERS AND THUNDERSTORMS EXTENDING FROM SMETHPORT IN MCKEAN COUNTY SOUTH TO NEAR CLEARFIELD AND ALTOONA. THE STRONGEST THUNDERSTORMS WERE MOVING THROUGH BLAIR AND CLEARFIELD COUNTIES. HIGH WINDS...IN EXCESS OF 50 MPH...WERE REPORTED WITH THOSE THUNDERSTORMS AS THEY MOVED THROUGH CAMBRIA AND WESTMORELAND COUNTIES EARLIER THIS AFTERNOON. ALL OF THE PRECIPITATION WAS MOVING NORTHEAST AT 45 MPH. THE RAPID MOVEMENT OF THE SHOWERS AND THUNDERSTORMS WILL BRING THEM INTO CLINTON COUNTY BY 300 PM EDT AND THEN ACROSS TIOGA AND LYCOMING BETWEEN 300 AND 400 PM. STRONG WINDS...SMALL HAIL AND HEAVY RAIN ARE POSSIBLE AS THESE THUNDERSTORMS MOVE THROUGH THE AREA. BE ON THE LOOKOUT FOR THUNDERSTORMS THIS AFTERNOON. IF THUNDERSTORMS APPROACH YOUR LOCATION...MOVE INSIDE A STRONG BUILDING AND STAY AWAY FROM WINDOWS. AVOID USING THE TELEPHONE OR ELECTRICAL APPLIANCES WHEN A THUNDERSTORM IS NEAR. STAY TUNED TO NOAA WEATHER RADIO THIS AFTERNOON FOR THE LATEST RADAR SUMMARIES AND STATEMENTS CONCERNING THUNDERSTORMS. NEMETH
Special weather statement, Apr 13, 3:05 PM EDT, 2 hours 14 minutes before
PAZ012-037-038-041-042-045-046-049>052-132005- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLIAMSPORT PA 305 PM EDT WED APR 13 1994 ...THUNDERSTORMS WITH GUSTY WINDS APPROACHING NORTHCENTRAL PENNSYLVANIA... AT 300 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED AN AREA OF SHOWERS AND THUNDERSTORMS EXTENDING FROM NEAR WESTFIELD IN TIOGA COUNTY SOUTH TO RENOVO...STATE COLLEGE AND BEDFORD. THUNDERSTORMS WERE INDICATED NEAR COUDERSPORT IN POTTER COUNTY AND RENOVO IN CLINTON COUNTY. THE STRONGEST THUNDERSTORMS WERE IN SOUTHERN SECTIONS OF THE STATE OVER BLAIR AND BEDFORD COUNTIES. ALL OF THE PRECIPITATION WAS MOVING NORTHEAST AT 45 MPH. SHOWERS AND THUNDERSTORMS SHOULD REACH WELLSBORO AND LOCK HAVEN BY 330 PM AND TROY...WILLIAMSPORT AND LEWISBURG BY 400 OR 430 PM. STRONG WINDS...SMALL HAIL AND HEAVY RAIN ARE POSSIBLE AS THESE THUNDERSTORMS MOVE THROUGH THE AREA. BE ON THE LOOKOUT FOR THUNDERSTORMS THIS AFTERNOON. IF THUNDERSTORMS APPROACH YOUR LOCATION...MOVE INSIDE A STRONG BUILDING AND STAY AWAY FROM WINDOWS. AVOID USING THE TELEPHONE OR ELECTRICAL APPLIANCES WHEN A THUNDERSTORM IS NEAR. STAY TUNED TO NOAA WEATHER RADIO THIS AFTERNOON FOR THE LATEST RAhDAR SUMMARIES AND STATEMENTS CONCERNING THUNDERSTORMS. NEMETH
Special weather statement, Apr 13, 4:03 PM EDT, 1 hour 16 minutes before
PAZ012-037-038-041-042-045-046-049>052-132105- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLIAMSPORT PA 400 PM EDT WED APR 13 1994 ...SHOWERS AND A FEW THUNDERSTORMS WITH HEAVY RAIN MOVING THROUGH NORTHCENTRAL PENNSYLVANIA... AT 400 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED AN AREA OF SHOWERS AND A FEW THUNDERSTORMS EXTENDING FROM NEAR ELMIRA NEW YORK SOUTH TO WILLIAMSPORT...MIFFLINTOWN AND CHAMBERSBURG. A POSSIBLE THUNDERSTORM WAS INDICATED IN WESTERN TIOGA COUNTY NEAR WESTFIELD AND GAINES AND IN UNION COUNTY NEAR LAURELTON. SHOWERS WITH BRIEFLY HEAVY RAIN WERE LOCATED NEAR MILL HALL AND LAMAR IN CLINTON COUNTY. THE STRONGEST THUNDERSTORMS WERE IN SOUTHERN SECTIONS OF THE STATE JUST TO THE WEST AND SOUTHWEST OF HARRISBURG. ALL OF THE PRECIPITATION WAS MOVING NORTHEAST AT 45 MPH. SHOWERS AND THUNDERSTORMS SHOULD REACH TOWANDA...LAPORTE...LEWSIBURG AND SUNBURY AROUND 500 PM. STRONG GUSTY WINDS...SMALL HAIL AND HEAVY RAIN ARE POSSIBLE AS THESE THUNDERSTORMS MOVE THROUGH THE AREA. IF THUNDERSTORMS APPROACH YOUR LOCATION...MOVE INSIDE A STRONG BUILDING AND STAY AWAY FROM WINDOWS. LIGHTNING IS THE GREATEST POTENTIAL KILLER IN ANY THUNDERSTORM. AVOID USING THE TELEPHONE OR ELECTRICAL APPLIANCES WHEN A THUNDERSTORM IS NEAR. STAY TUNED TO NOAA WEATHER RADIO THIS AFTERNOON FOR THE LATEST RADAR SUMMARIES AND STATEMENTS CONCERNING THUNDERSTORMS. NEMETH
Special weather statement, Apr 13, 5:08 PM EDT, 11 minutes before
PAZ012-037-038-041-042-045-046-049>052-132210- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLIAMSPORT PA 505 PM EDT WED APR 13 1994 ...SHOWERS AND A FEW THUNDERSTORMS WITH HEAVY RAIN MOVING THROUGH NORTHCENTRAL PENNSYLVANIA... AT 505 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED AN AREA OF SHOWERS AND A FEW THUNDERSTORMS EXTENDING FROM NEAR WARREN CENTER IN BRADFORD COUNTY SOUTH TO BLOOMSBURG...THEN TO HARRISBURG. A LINE OF POSSIBLE THUNDERSTORMS WITH HEAVY RAIN WAS EXTENDING FROM LAWRENCEVILLE IN EASTERN TIOGA COUNTY SOUTH TO MONTGOMERY IN LYCOMING COUNTY...THEN TO SELINSGROVE. THE STRONGEST THUNDERSTORMS WERE IN SOUTHERN PORTIONS OF THE STATE FROM HARRISBURG INTO NORTHERN MARYLAND. ALL OF THE PRECIPITATION WAS MOVING NORTHEAST AT 45 MPH. POSSIBLE THUNDERSTORMS WITH HEAVY RAIN SHOULD REACH TOWANDA...LAPORTE...AND BLOOMSBURG BY 600 PM. STRONG GUSTY WINDS...SMALL HAIL AND HEAVY RAIN ARE POSSIBLE AS THESE THUNDERSTORMS MOVE THROUGH THE AREA. IF THUNDERSTORMS APPROACH YOUR LOCATION...MOVE INSIDE A STRONG BUILDING AND STAY AWAY FROM WINDOWS. LIGHTNING IS THE GREATEST POTENTIAL KILLER IN ANY THUNDERSTORM. AVOID USING THE TELEPHONE OR ELECTRICAL APPLIANCES WHEN A THUNDERSTORM IS NEAR. STAY TUNED TO NOAA WEATHER RADIO THIS EVENING FOR THE LATEST RADAR SUMMARIES AND STATEMENTS CONCERNING THUNDERSTORMS. GINGRICH
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 3:03 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton | 57 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1994Every severe thunderstorm warning in 1994
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.