Alert archive / Pennsylvania / Flash Flood Warnings in 1993
Flash Flood Warning 13, NWS State College, PA
NWS State College, PA issued this flash flood warning at Apr 1, 1993, 8:43 PM EST for Dauphin County, Lancaster County, Pennsylvania. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Apr 1, 1993, 8:43 PM EST (01:43 UTC)
- Expired
- Apr 2, 1993, 4:00 AM EST
- In force
- 7 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
Counties Dauphin County, PA, Lancaster County, PA
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 1.7 hours before the alert went out and 161 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
- 615 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 664 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 152 m²/s²
- 0-3 km storm-relative helicity
- 275 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 3.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KHAR 020147 FFWHAR PAC043-071-020900- BULLETIN - EBS ACTIVATION REQUESTED SMALL STREAM FLOOD WARNING NATIONAL WEATHER SERVICE HARRISBURG PA 843 PM EST THU APR 1 1993 THE NATIONAL WEATHER SERVICE IN HARRISBURG HAS ISSUED A SMALL STREAM FLOOD WARNING EFFECTIVE UNTIL 400 AM EST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL PENNSYLVANIA ...DAUPHIN COUNTY...LANCASTER COUNTY EMERGENCY MANAGEMENT OFFICIALS IN DAUPHIN COUNTY REPORT ROADS BEING CLOSED DUE TO FLOODING IN LONDONDERRY TOWNSHIP AND LOWER SWATARA TOWNSHIP. A LARGE AREA OF MODERATE TO VERY HEAVY RAIN IS CURRENTLY FALLING ACROSS DAUPHIN COUNTY. A BAND OF MODERATE TO VERY HEAVY RAIN ALSO EXTENDS ACROSS CENTRAL AND NORTHERN LANCASTER COUNTY. SOME OF THE HEAVIER RAIN IS LOCATED ALONG THE LITTLE CHICKIES CREEK WHICH FLOODED EARLIER TODAY. PERSONS IN LANCASTER COUNTY...ESPECIALLY THOSE ALONG THE LITTLE CHICKIES CREEK SHOULD BE ALERT FOR SIGNIFICANT ADDITIONAL FLOODING OVERNIGHT. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS TO RISE. &
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, 5 hours 28 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, 4 hours 28 minutes before
PAZ006-009-013-020000- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE HARRISBURG PA 515 PM EDT THU APR 01 1993 ....RAIN SHOWERS AND THUNDERSTORMS ARE MOVING INTO SOUTH CENTRAL PENNSYLVANIA...A 430 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, 5:17 PM EST, 3 hours 26 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, 5:19 PM EST, 3 hours 24 minutes before
PAZ006-009-013-020000- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE HARRISBURG PA 515 PM EDT THU APR 01 1993 ....RAIN SHOWERS AND THUNDERSTORMS ARE MOVING INTO SOUTH CENTRAL PENNSYLVANIA...A 430 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
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 9:58 PM EST | Flash Flood Warning | CTP | Adams, Cumberland, Franklin, York | 6 hr |
| Apr 1, 9:58 PM EST | Flash Flood Warning | CTP | Huntingdon, Mifflin | 6 hr |
| Apr 2, 7:46 AM EST | Flash Flood Warning | CTP | Franklin | 8 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.