Alert archive / Pennsylvania / Flash Flood Warnings in 1993
Flash Flood Warning 12, NWS State College, PA
NWS State College, PA issued this flash flood warning at Apr 1, 1993, 6:50 PM EST for Cumberland County, York County, Pennsylvania. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Apr 1, 1993, 6:50 PM EST (23:50 UTC)
- Expired
- Apr 1, 1993, 9:45 PM EST
- In force
- 3 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
Counties Cumberland County, PA, York County, PA
The radar
The Sterling radar (KLWX), 126 km from the middle of the area, began a volume at 23:53 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 11.8 hours before the alert went out and 126 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
- 532 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 154 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 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, Apr 1, 3:15 PM EST, 3 hours 35 minutes before
PAZ006-009-013-020000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HARRISBURG PA 415 PM EDT THU APR 01 1993 ....RAIN SHOWERS AND THUNDERSTORMS ARE MOVING INTO SOUTH CENTRAL PENNSYLVANIA...A 330 PM WEATHER SERVICE RADAR IN HARRISBURG SHOWED AN AREA OF SCATTERED RAIN SHOWERS WITH EMBEDDED THUNDERSTORMS...SOME WITH VERY HEAVY RAIN... MOVING ACROSS SOUTH CENTRAL PENNSYLVANIA...MARYLAND....AND THE VIRGINIAS. THE STRONGEST STORMS WERE LOCATED IN HAMPSHIRE COUNTY WEST VIRGINIA... FREDERICK COUNTY VIRGINIA...AND FAUQUIER COUNTY VIRGINIA. ISOLATED THUNDERSTORMS WITH SMALL AREAS OF HEAVY RAIN WERE LOCATED IN BEDFORD COUNTY AND INDIANA COUNTY PENNSYLVANIA. AREAS OF LIGHT TO MODERATE RAINSHOWERS EXTEND ACROSS MUCH OF THE SOUTH CENTRAL MOUNTAINS OF PENNSYLVANIA. THE THUNDERSTORMS AND SHOWERS ARE MOVING TO THE NORTHEAST AT 35 MILES PER HOUR. RAIN SHOWERS...AND POSSIBLY A FEW EMBEDDED THUNDERSTORMS...WILL SPREAD FROM SOUTHWEST TO NORTHEAST ACROSS SOUTH CENTRAL PENNSYLVANIA AND THE LOWER SUSQUEHANNA VALLEY OVER THE NEXT 3 HOURS. GIVEN THE SATURATED SOIL CONDITIONS...AND BANKFULL OR HIGHER CONDITIONS ON MANY AREA STREAMS AND CREEKS...ADDITIONAL SMALL STREAM FLOODING IS LIKELY IN ANY AREAS WHICH MAY RECEIVE HEAVY RAIN. STAY ALERT TO THE POSSIBILITY OF ADDITIONAL FLOODING. IF YOU LIVE NEAR A SMALL STREAM MONITOR ITS LEVEL CLOSELY. MOVE TO HIGH GROUND IF FLOODING IS OBSERVED. DO NOT DRIVE ACROSS FLOODED ROADS. TWO FEET OF WATER ARE ALL THATS NEEDED TO SWEEP YOU AND YOUR CAR DOWNSTREAM. FLOOD WARNINGS CONTINUE IN FULTON AND FRANKLIN COUNTIES UNTIL 10 PM TONIGHT. A FLOOD WATCH REMAINS IN EFFECT ACROSS THE REGION. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TELEVISION STATION FOR LATER STATEMENTS AND POSSIBLE WARNINGS. PRA
Special weather statement, Apr 1, 4:15 PM EST, 2 hours 35 minutes before
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PAZ006-009-013-020000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HARRISBURG PA 415 PM EDT THU APR 01 1993 ....RAIN SHOWERS AND THUNDERSTORMS ARE MOVING INTO SOUTH CENTRAL PENNSYLVANIA...A 330 PM WEATHER SERVICE RADAR IN HARRISBURG SHOWED AN AREA OF SCATTERED RAIN SHOWERS WITH EMBEDDED THUNDERSTORMS...SOME WITH VERY HEAVY RAIN... MOVING ACROSS SOUTH CENTRAL PENNSYLVANIA...MARYLAND....AND THE VIRGINIAS. THE STRONGEST STORMS WERE LOCATED IN HAMPSHIRE COUNTY WEST VIRGINIA... FREDERICK COUNTY VIRGINIA...AND FAUQUIER COUNTY VIRGINIA. ISOLATED THUNDERSTORMS WITH SMALL AREAS OF HEAVY RAIN WERE LOCATED IN BEDFORD COUNTY AND INDIANA COUNTY PENNSYLVANIA. AREAS OF LIGHT TO MODERATE RAINSHOWERS EXTEND ACROSS MUCH OF THE SOUTH CENTRAL MOUNTAINS OF PENNSYLVANIA. THE THUNDERSTORMS AND SHOWERS ARE MOVING TO THE NORTHEAST AT 35 MILES PER HOUR. RAIN SHOWERS...AND POSSIBLY A FEW EMBEDDED THUNDERSTORMS...WILL SPREAD FROM SOUTHWEST TO NORTHEAST ACROSS SOUTH CENTRAL PENNSYLVANIA AND THE LOWER SUSQUEHANNA VALLEY OVER THE NEXT 3 HOURS. GIVEN THE SATURATED SOIL CONDITIONS...AND BANKFULL OR HIGHER CONDITIONS ON MANY AREA STREAMS AND CREEKS...ADDITIONAL SMALL STREAM FLOODING IS LIKELY IN ANY AREAS WHICH MAY RECEIVE HEAVY RAIN. STAY ALERT TO THE POSSIBILITY OF ADDITIONAL FLOODING. IF YOU LIVE NEAR A SMALL STREAM MONITOR ITS LEVEL CLOSELY. MOVE TO HIGH GROUND IF FLOODING IS OBSERVED. DO NOT DRIVE ACROSS FLOODED ROADS. TWO FEET OF WATER ARE ALL THATS NEEDED TO SWEEP YOU AND YOUR CAR DOWNSTREAM. FLOOD WARNINGS CONTINUE IN FULTON AND FRANKLIN COUNTIES UNTIL 10 PM TONIGHT. A FLOOD WATCH REMAINS IN EFFECT ACROSS THE REGION. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TELEVISION STATION FOR LATER STATEMENTS AND POSSIBLE WARNINGS. PRA
Special weather statement, Apr 1, 5:19 PM EST, 1 hour 31 minutes before
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</html>The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 8:20 AM EST | Flash Flood Warning | CTP | Lancaster | 3 hr |
| Apr 1, 8:55 AM EST | Flash Flood Warning | CTP | Mifflin, Union | 3 hr |
| Apr 1, 9:55 AM EST | Flash Flood Warning | CTP | Franklin | 6 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 1993Every flash flood warning in 1993
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; radar from the NEXRAD Level II archive.