Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 118, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Aug 2, 1994, 7:08 PM EDT for Juniata County, Mifflin County, Snyder County, Pennsylvania. It was in force for 52 min.
The area
The counties it named.
The facts
- Issued
- Aug 2, 1994, 7:08 PM EDT (23:08 UTC)
- Expired
- Aug 2, 1994, 8:00 PM EDT
- In force
- 52 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
Counties Juniata County, PA, Mifflin County, PA, Snyder County, PA
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 11.1 hours before the alert went out and 233 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
- 1337 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 864 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Aug 2, 5:35 PM EDT, 1 hour 33 minutes before
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056-057-059-063>066-030435- SPECIAL WEATHER STATEMENT - SEVERE THUNDERSTORM AND FLASH FLOOD NATIONAL WEATHER SERVICE STATE COLLEGE PA 535 PM EDT TUE AUG 2 1994 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MOST OF EASTERN PENNSYLVANIA UNTIL MIDNIGHT... ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MOST OF WESTERN PENNSYLVANIA UNTIL 7 PM... ...FLASH FLOOD WATCH IN EFFECT FOR MUCH OF CENTRAL PENNSYLVANIA... THE SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE FOLLOWING COUNTIES IN CENTRAL PENNSYLVANIA UNTIL MIDNIGHT... POTTER...CAMERON...TIOGA...CENTRE...NORTHUMBERALAND...SULLIVAN...CLINTON ...CLEARFIELD...UNION...SNYDER...LYCOMING...MONTOUR...ADAMS...JUNIATA. ..DAUPHIN...FULTON...LEBANON...YORK...PERRY..MIFFLIN...FRANKLIN... HUNTINDON...SCHUYKILL..AND COLUMBIA. A FLASH FLOOD WATCH HAS BEEN ISSUED UNTIL MIDNIGHT FOR POTTER...CLEARFIELD...JUNIATA...CAMERON...HUNTINGDON... MIFFLIN...CLINTON....FULTON...CENTRE AND FRANKLIN. A SEVERE THUNDERSTORM AND FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 PM FOR THE REST OF WESTERN PENNSYLVANIA. SHOWERS AND THUNDERSTORMS OVER WESTERN PENNSYLVANIA AT 530 PM WILL CONTINUE MOVING EAST INTO VERY WARM...HUMID AND UNSTABLE AIR OVER EASTERN PENNSYLVANIA. THUNDERSTORMS ARE SLOW MOVING AND WILL BE ACCOMPANIED BY BRIEFLY GUSTY WINDS...HAIL AND TORRENTIAL DOWNPOURS. WHEN SEVERE THUNDERSTORMS ARE OCCURRING...YOU SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORMS HAVE PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. LA CORTE
Special weather statement, Aug 2, 5:37 PM EDT, 1 hour 31 minutes before
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056-057-059-063>066-030435- SPECIAL WEATHER STATEMENT - SEVERE THUNDERSTORM AND FLASH FLOOD NATIONAL WEATHER SERVICE STATE COLLEGE PA 535 PM EDT TUE AUG 2 1994 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MOST OF EASTERN PENNSYLVANIA UNTIL MIDNIGHT... ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MOST OF WESTERN PENNSYLVANIA UNTIL 7 PM... ...FLASH FLOOD WATCH IN EFFECT FOR MUCH OF CENTRAL PENNSYLVANIA... THE SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE FOLLOWING COUNTIES IN CENTRAL PENNSYLVANIA UNTIL MIDNIGHT... POTTER...CAMERON...TIOGA...CENTRE...NORTHUMBERALAND...SULLIVAN...CLINTON ...CLEARFIELD...UNION...SNYDER...LYCOMING...MONTOUR...ADAMS...JUNIATA. ..DAUPHIN...FULTON...LEBANON...YORK...PERRY..MIFFLIN...FRANKLIN... HUNTINDON...SCHUYKILL..AND COLUMBIA. A FLASH FLOOD WATCH HAS BEEN ISSUED UNTIL MIDNIGHT FOR POTTER...CLEARFIELD...JUNIATA...CAMERON...HUNTINGDON... MIFFLIN...CLINTON....FULTON...CENTRE AND FRANKLIN. A SEVERE THUNDERSTORM AND FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 PM FOR THE REST OF WESTERN PENNSYLVANIA. SHOWERS AND THUNDERSTORMS OVER WESTERN PENNSYLVANIA AT 530 PM WILL CONTINUE MOVING EAST INTO VERY WARM...HUMID AND UNSTABLE AIR OVER EASTERN PENNSYLVANIA. THUNDERSTORMS ARE SLOW MOVING AND WILL BE ACCOMPANIED BY BRIEFLY GUSTY WINDS...HAIL AND TORRENTIAL DOWNPOURS. WHEN SEVERE THUNDERSTORMS ARE OCCURRING...YOU SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORMS HAVE PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. LA CORTE
Special weather statement, Aug 2, 6:20 PM EDT, 48 minutes before
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056-057-059-063>066-030020- SPECIAL WEATHER STATEMENT - THUNDERSTORMS NATIONAL WEATHER SERVICE STATE COLLEGE PA 620 PM EDT TUE AUG 2 1994 ...SEVERE THUNDERDSTORM WATCH IN EFFECT UNTIL MIDNIGHT FOR MOST OF EASTERN PENNSYLVANIA. ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 7PM FOR MOST OF WESTERN PENNSYLVANIA. ...FLASH FLOOD WATCH FOR MUCH OF CENTRAL PENNSYLVANIA. AT 615 PM...STATE COLLEGE DOPPLER RADAR SHOWED AN AREA OF SHOWERS AND THUNDERSTORMS EXTENDING FROM WILLIAMSPORT AND LOCK HAVEN SOUTHWEST TO STATE COLLEGE...ALTOONA AND JOHNSTOWN. THE SHOWERS AND THUNDERSTORMS WERE MOVING EAST AT 25 MPH AND WILL EXTEND FROM BERWICK TO BEDFORD BY 8 PM. IF YOU PLAN TO BE OUTDOORS...CHECK THE LATEST WEATHER INFORMATION AND KEEP A WEATHER EYE ON THE SKY. LA CORTE
Special weather statement, Aug 2, 6:21 PM EDT, 47 minutes before
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056-057-059-063>066-030020- SPECIAL WEATHER STATEMENT - THUNDERSTORMS NATIONAL WEATHER SERVICE STATE COLLEGE PA 620 PM EDT TUE AUG 2 1994 ...SEVERE THUNDERDSTORM WATCH IN EFFECT UNTIL MIDNIGHT FOR MOST OF EASTERN PENNSYLVANIA. ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 7PM FOR MOST OF WESTERN PENNSYLVANIA. ...FLASH FLOOD WATCH FOR MUCH OF CENTRAL PENNSYLVANIA. AT 615 PM...STATE COLLEGE DOPPLER RADAR SHOWED AN AREA OF SHOWERS AND THUNDERSTORMS EXTENDING FROM WILLIAMSPORT AND LOCK HAVEN SOUTHWEST TO STATE COLLEGE...ALTOONA AND JOHNSTOWN. THE SHOWERS AND THUNDERSTORMS WERE MOVING EAST AT 25 MPH AND WILL EXTEND FROM BERWICK TO BEDFORD BY 8 PM. IF YOU PLAN TO BE OUTDOORS...CHECK THE LATEST WEATHER INFORMATION AND KEEP A WEATHER EYE ON THE SKY. LA CORTE
Special weather statement, Aug 2, 6:40 PM EDT, 28 minutes before
PAZ065-030040- SPECIAL WEATHER STATEMENT - THUNDERSTORMS NATIONAL WEATHER SERVICE STATE COLLEGE PA 640 PM EDT TUE AUG 2 1994 ...THUNDERSTORMS DEVELOPING RAPIDLY JUST OVER YORK COUNTY...JUST SOUTH OF YORK. AT 640 PM STATE COLLEGE DOPPLER WEATER RADAR SHOWED A RAPIDLY DEVELOPING THUNDERSTORM JUST SOUTH OF YORK. IT IS MOVING SLOWLY NORTH AND WILL MOVE INTO THE CITY OF YORK BEFORE 7 PM. IF YOU ARE OUTDOORS...MOVE TO A PLACE OF SHELTER IMMEDIATELY IF A STORM APPROACHES. MOTORISTS SHOULD REMAIN ALERT FOR REDUCED VISIBILITIES DURING DOWNPOURS OF RAIN. STREETS MAY FLOOD QUICKLY. LA CORTE
Special weather statement, Aug 2, 6:41 PM EDT, 27 minutes before
PAZ065-030040- SPECIAL WEATHER STATEMENT - THUNDERSTORMS NATIONAL WEATHER SERVICE STATE COLLEGE PA 640 PM EDT TUE AUG 2 1994 ...THUNDERSTORMS DEVELOPING RAPIDLY JUST OVER YORK COUNTY...JUST SOUTH OF YORK. AT 640 PM STATE COLLEGE DOPPLER WEATER RADAR SHOWED A RAPIDLY DEVELOPING THUNDERSTORM JUST SOUTH OF YORK. IT IS MOVING SLOWLY NORTH AND WILL MOVE INTO THE CITY OF YORK BEFORE 7 PM. IF YOU ARE OUTDOORS...MOVE TO A PLACE OF SHELTER IMMEDIATELY, IF A STORM APPROACHES. MOTORISTS SHOULD REMAIN ALERT FOR REDUCED VISIBILITIES DURING DOWNPOURS OF RAIN. STREETS MAY FLOOD QUICKLY. LA CORTE
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 3:39 PM EDT | Severe Thunderstorm Warning | CTP | Elk | 66 min |
| Aug 2, 3:48 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 57 min |
| Aug 2, 3:51 PM EDT | Severe Thunderstorm Warning | CTP | Bradford | 69 min |
| Aug 2, 4:44 PM EDT | Flash Flood Warning | CTP | Centre, Clearfield | 2 hr |
| Aug 2, 4:54 PM EDT | Severe Thunderstorm Warning | CTP | Potter, Tioga | 66 min |
| Aug 2, 6:49 PM EDT | Flash Flood Warning | CTP | Blair | 116 min |
| Aug 2, 6:49 PM EDT | Flash Flood Warning | CTP | Somerset | 116 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.