Alert archive / Pennsylvania / Flash Flood Warnings in 1992
Flash Flood Warning 8, NWS State College, PA
NWS State College, PA issued this flash flood warning at Nov 23, 1992, 8:25 AM EST for Lancaster County, Pennsylvania. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Nov 23, 1992, 8:25 AM EST (13:25 UTC)
- Expired
- Nov 23, 1992, 11:30 AM EST
- In force
- 3 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Lancaster County, PA
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 1.4 hours before the alert went out and 157 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
- 1243 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 106 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 231325 FFWHAR PAC071-231630- BULLETIN - EBS ACTIVATION REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE HARRISBURG PA 825 AM EST MON NOV 23 1992 THE NATIONAL WEATHER SERVICE IN HARRISBURG HAS ISSUED A FLOOD WARNING EFFECTIVE UNTIL 1130 AM EST FOR PEOPLE IN THE FOLLOWING LOCATIONS...... IN SOUTH CENTRAL PENNSYLVANIA ...NORTHERN LANCASTER COUNTY LANCASTER COUNTY EMA REPORTS HEAVY RAINS CONTINUING ACROSS LANCASTER COUNTY WITH SEVERAL ROADS REPORTED CLOSED. THE HARDEST HIT AREA HAS BEEN ACROSS THE NORTH FROM AROUND MT. JOY OVER TO EPHRATA. A LINE OF THUNDERSTORMS IS CURRENTLY MOVING ACROSS THE COUNTY...BRINGING SOME ADDITIONAL RAINFALL. THE THUNDERSTORMS SHOULD BE OUT OF EASTERN LANCASTER COUNTY BY 930AM. CREEKS AND STREAMS WILL CONTINUE TO RISE OVER THE NEXT HOUR OR TWO, WITH SOME IMPROVEMENT COMING LATE THIS MORNING OR EARLY AFTERNOON. MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. 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.
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, Nov 23, 2:26 AM EST, 5 hours 59 minutes before
PAZ006-013-014-008-009-231000- SPECIAL WEATHER STATEMENT...THUNDERSTORMS NATIONAL WEATHER SERVICE HARRISBURG PA 225 AM EST MON NOV 23 1992 ...THUNDERSTORMS ARE RACING THROUGH SOUTH CENTRAL PENNSYLVANIA... WARM MOIST AIR SPREADING ACROSS THE REGION FROM THE SOUTH AND A FRONTAL SYSTEM HAS IGNITED THUNDERSTORMS IN SOUTH CENTRAL PENNSYLVANIA. AT 2 AM A FEW THUNDERSTORMS WITH HEAVY RAIN WERE FROM NEAR READING SOUTHWEST TO LANCASTER. OTHER THUNDERSTORMS WERE JUST WEST OF THE NATIONS CAPITOL AND FROM CENTRAL CENTRE COUNTY SOUTH THROUGH HUNTINGDON AND FULTON COUNTIES. THE STORMS WERE ALL RACING NORTHEAST AT 50 TO 60 MPH. SOME OF THE THUNDERSTORMS MAY CONTAIN GUSTY WINDS...HEAVY RAIN AND DEADLY LIGHTNING. STREET FLOODING WAS REPORTED IN LANCASTER COUNTY NEAR ELIZABETHTOWN BY THE COUNTY EMERGENCY MANAGEMENT AGENCY. YORK COUNTY EMERGENCY PERSONNEL REPORTED STREET FLOODING AT MARKET STREET OF THE CITY OF YORK WHERE THE STREET HAD ABOUT 4 F"EET OF WATER AND SOME BASEMENTS HAD COLAPSED. MOST RAIN HAS ENDED FOR NOW IN THE AFFECTED AREAS OF YORK AND LANCASTER COUNTIES. STAY TUNED TO THIS STATION FOR FURTHER STATEMENTS. KOWALZYK
Special weather statement, Nov 23, 3:12 AM EST, 5 hours 13 minutes before
PAZ007-008-014-230930- SPECIAL WEATHER STATEMENT...THUNDERSTORMS NATIONAL WEATHER SERVICE WILLIAMSPORT PA 312 AM EST MON NOV 23 1992 ...LATE SEASON THUNDERSTORMS MOVING ACROSS NORTHCENTRAL PENNSYLVANIA... AT 300 AM EST NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF MAINLY SHOWERS EXTENDING FROM THE SAYRE/ATHENS REGION DOWN THROUGH WILLIAMSPORT AND THEN TO LAURELTON IN SNYDER COUNTY. THERE WERE THUNDERSTORMS IN THIS LINE...ONE NEAR LAURELTON AND THEN ANOTHER BETWEEN CANTON AND BODINES ALONG THE BRADFORD/LYCOMING COUNTY BORDER. THE THUNDERSTORMS WERE MOVING NORTHEAST AT AROUND 45 MPH. THEREFORE THUNDERSTORMS ARE POSSIBLE ACROSS SNYDER COUNTY AND ALSO ALONG THE BRADFORD/SULLIVAN COUNTY LINE BETWEEN NOW AND 400 AM EST. THESE THUNDERSTORMS COULD CONTAIN STRONG GUSTY WINDS...HEAVY RAIN AND DEADLY LIGHTNING. REMEMBER THE SAFEST PLACE TO BE DURING A THUNDERSTORM IS INSIDE A STRONG BUILDING. STAY AWAY FROM WINDOWS AND DO NOT USE ELECTRICAL APPLIANCES UNTIL THE STORMS PASS. KJF
Special weather statement, Nov 23, 4:02 AM EST, 4 hours 23 minutes before
PAZ009-231100- SPECIAL WEATHER STATEMENT...THUNDERSTORMS WITH HEAVY RAIN NATIONAL WEATHER SERVICE HARRISBURG PA 400 AM EST MON NOV 23 1992 ...THUNDERSTORMS WITH HEAVY RAIN ARE MOVING EAST THROUGH SOUTH CENTRAL PA... AT 350 AM A LINE OF THUNDERSTORMS WITH HEAVY RAIN WAS FROM EASTERN PERRY COUNTY SOUTHWEST ACROSS CARLISLE TO ABOUT 5 MILES EAST OF CHAMBERSBURG. THE STORMS WERE MOVING EAST AROUND 45 MPH AND WILL ARRIVE IN THE AREAS OF YORK COUNTY THAT HAD EARLIER STREET FLOODING AROUND 440 AM...AND IN LANCASTER COUNTY AROUND 500 AM. ALTHOUGH THIS LINE OF STORMS WILL BE MOVING RAPIDLY THROUGH THE AREA...STREETS AND SMALL STREAMS STILL HAVE WATER FROM EARLIER RAINS. IF YOU LIVE NEAR A FLOOD PRONE STREAM...BE PREPARED TO MOVE TO HIGHER GROUND. DO NOT DRIVE THROUGH STANDING WATER AS THE WATER MAY BE DEEPER THAN IT LOOKS. STAY TUNED TO THIS STATION FOR FURTHER STATEMENTS OF POSSIBLE WARNINGS. KOWALZYK
Special weather statement, Nov 23, 4:22 AM EST, 4 hours 3 minutes before
PAZ007-008-014-231030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLIAMSPORT PA 420 AM EST MON NOV 23 1992 ...HEAVIEST SHOWERS MOVING OUT OF NORTHCENTRAL PENNSYLVANIA... AT 415 AM EST NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF MAINLY SHOWERS ACROSS EASTERN BRADFORD AND SULLIVAN COUNTIES. SHOWERS IN THIS LINE WERE HEAVY AND AS MUCH AS A QUARTER OF AN INCH /.25/ OF RAIN IS POSSIBLE IN A SHORT PERIOD OF TIME. THIS QUICK SHOT OF $RAIN COULD CAUSE SOME FLOODING OF LOW-LYING AND POOR DRAINAGE AREAS. OTHER SHOWERS WERE IN NORTHWESTERN LYCOMING COUNTY AND JUST WEST OF LOCK HAVEN. THE PRECIPITATION WAS MOVING NORTHEAST AT 40 MPH. KJF
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 23, 4:22 AM EST | Flash Flood Warning | CTP | York | 68 min |
| Nov 23, 5:29 AM EST | Flash Flood Warning | CTP | York | 61 min |
| Nov 23, 6:35 AM EST | Flash Flood Warning | CTP | York | 115 min |
Nearby
Flash Flood Warnings in Pennsylvania, 1992Every flash flood warning in 1992
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.