Alert archive / Pennsylvania / Flash Flood Warnings in 1994
Flash Flood Warning 9, NWS State College, PA
NWS State College, PA issued this flash flood warning at Aug 2, 1994, 6:49 PM EDT for Somerset County, Pennsylvania. It was in force for 116 min.
The area
The counties it named.
The facts
- Issued
- Aug 2, 1994, 6:49 PM EDT (22:49 UTC)
- Expired
- Aug 2, 1994, 8:45 PM EDT
- In force
- 116 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Somerset County, PA
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 10.8 hours before the alert went out and 103 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
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCTP 022252 FFWCTP PAC013-111-030045- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 649 PM EDT TUE AUG 2 1994 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 845 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...... IN PENNSYLVANIA ...BLAIR...SOMERSET COUNTIES AT 645 PM STATE COLLEGE DOPPLER RADAR SHOWED 1 HOUR PRECIPITATION TOTALS OF 2.1 INCHES JUST SOUTH OF ALTOONA. RAINFALL REPORTS FROM NORTHERN SOMERSET COUNTY TOTALED 2.5 INCHES IN ONE HOUR. SKYWARN REPORTS PEA SIZED HAIL IN THE ALTOONA AREA. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILE:S. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. LA CORTE
What forecasters said that day
The local office's own words before this flash flood 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 14 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 12 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, 29 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, 28 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, 9 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, 8 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, 7:08 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Mifflin, Snyder | 52 min |
Nearby
Flash Flood Warnings in Pennsylvania, 1994Every flash flood 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.