Alert archive / Pennsylvania / Flash Flood Warnings in 1993
Flash Flood Warning 2, NWS State College, PA
NWS State College, PA issued this flash flood warning at Mar 4, 1993, 7:14 PM EST for Cumberland County, Pennsylvania. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Mar 4, 1993, 7:14 PM EST (00:14 UTC)
- Expired
- Mar 5, 1993, 1:15 AM EST
- In force
- 6 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Cumberland County, PA
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 0.2 hours before the alert went out and 135 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
- 561 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 96 m²/s²
- 0-3 km storm-relative helicity
- 327 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 050017 FFWHAR PAC041-050615- BULLETIN - EBS ACTIVATION REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE HARRISBURG PA 714 PM EST THU MAR 4 1993 THE NATIONAL WEATHER SERVICE IN HARRISBURG HAS ISSUED A URBAN AND SMALL STREAM FLOOD WARNING EFFECTIVE UNTIL 115 AM EST FOR PEOPLE IN THE FOLLOWING LOCATION...... IN SOUTH CENTRAL PENNSYLVANIA ...CUMBERLAND COUNTY LAW ENFORCEMENT OFFICIALS REPORT A NUMBER OF STREAMS IN CUMBERLAND COUNTY NEARING THEIR BANKS...INCLUDING MOUNTAIN CREEK IN MOUNT HOLLY. WATER IN THIS STREAM IS EXPECTED TO RISE OVER THE BANKS THIS EVENING. A PART OF THE MOUNTAIN CREEK IN THE PINE GROVE STATE PARK HAS GONE OVER ITS BANK. WATER IS 4 TO 5 INCHES DEEP ALONG PARTS OF A SMALL ROAD. EVENTHOUGH RAINFALL HAS LIGHTENED ACROSS THE REGION SMALL STREAMS AND CREEKS ARE HIGH ACROSS THE COUNTY...AND SOME OF THEM WILL OVERFLOW THEIR BANKS. 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. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. TH*E 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. FENNER
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, Mar 4, 1:29 PM EST, 5 hours 45 minutes before
PAZ009-013-008-006-042100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HARRISBURG PA. 120 PM EST THU MAR 04 1993 ...HIGH WINDS...FALLEN TREES...AND FLOODED ROADS... DURING THE PAST HOUR THE FOLLOWING REPORTS HAVE BEEN RECEIVED: ADAMS COUNTY...GETTYSBURG...WIND GUST TO 58 MPH. POWER LINES DOWNED AND SOME ROADS CLOSED DUE TO FALLEN TREES. YORK COUNTY...DILLSBURG AREA...TREES AND WIRES DOWN AND STREET FLOODING. CUMBERLAND COUNTY...DOWN TREES AND POWER LINES DUE TO ICE AND WINDS. ROOFS BLOWN OFF HOUSES. STRONG WINDS ARE LIKELY FOR THE REMAINDER OF THE AFTERNOON. DRIVING CONDITIONS WILL BE ESPECIALLY HAZARDOUS DUE TO THE WINDS AND FROZEN ROADWAYS...ESPECIALLY AT HIGHER ELEVATIONS. IF YOU MUST VENTURE OUT THIS AFTERNOON...SLOW DOWN AND STAY ALERT FOR STRONG WINDS. PRA
Special weather statement, Mar 4, 1:29 PM EST, 5 hours 45 minutes before
PAZ007-008-014-042100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLIAMSPORT PA 130 PM EST THU FEB 4 1993 ...WINTER WEATHER ADVISORY CONTINUES IN EFFECT THIS AFTERNOON AND TONIGHT OVER PORTIONS OF NORTHCENTRAL PENNSYLVANIA... ...SLEET CAUSING SOME SLIPPERY ROAD CONDITIONS ACROSS THE REGION... ...ADVISORY INFORMATION... A WINTER WEATHER ADVISORY REMAINS IN EFFECT THIS AFTERNOON AND TONIGHT FOR 2 TO 4 INCHES OF SNOW ACROSS THE NORTHERN TIER COUNTIES OF NORTHCENTRAL PENNSYLVANIA. THIS ADVISORY INCLUDES BRADFORD...NORTHERN LYCOMING...TIOGA AND SULLIVAN COUNTIES. THIS ADVISORY DOES NOT INCLUDE LOCK HAVEN...WILLIAMSPORT OR CITIES IN THE MIDDLE SUSQUEHANNA VALLEY. ...THIS AFTERNOON... A MIXTURE OF RAIN...SLEET AND SNOW CONTINUED TO FALL ACROSS ALL OF NORTHCENTRAL PENNSYLVANIA EARLY THIS AFTERNOON. NATIONAL WEATHER SERVICE SPOTTERS HAVE ALSO REPORTED ISOLATED POCKETS OF FREEZING RAIN. ANY SNOW ACCUMULATIONS HAVE BEEN MINIMAL. HOWEVER...SLEET HAS BEEN ACCUMULATING IN MANY LOCATIONS CAUSING SOME SLIPPERY ROAD CONDITIONS. AS OF 1 PM...ONE HALF OF AN INCH /.5/ OF SLEET HAD ACCUMULATED HERE AT THE WILLIAMSPORT-LYCOMING COUNTY AIRPORT. REPORTS FROM LOCAL POLICE AND HAM RADIO OPERATORS INDICATE THAT ROADS ARE SLIPPERY...ESPECIALLY IN THE HIGHER ELEVATIONS. LITTLE CHANGE IS EXPECTED FOR THE REST OF THE AFTERNOON WITH A MIXED BAG OF WINTER WEATHER CONTINUING TO FALL ACROSS THE REGION. ONLY LIGHT ACCUMULATIONS OF SNOW ARE EXPECTED IN THE HIGHER ELEVATIONS BY EVENING WITH ACCUMULATING SNOW STILL A REAL POSSIBILITY TONIGHT. ...PRECAUTIONS... ANYONE TRAVELING THIS AFTERNOON...ESPECIALLY IN THE MOUNTAINS ACROSS THE NORTHERN TIER...CAN EXPECT SLIPPERY ROAD CONDITIONS DUE TO SNOW AND SLEET. ANOTHER WEATHER CONCERN FOR THIS AFTERNOON WILL BE THE WIND WHICH MAY GUST BETWEEN 30 AND 40 MPH AT TIMES. THE GUSTY WINDS MAY CREATE PROBLEMS FOR HIGH PROFILE VEHICLES. THIS WILL BE A CHANGING WEATHER SITUATION. LISTEN TO NOAA WEATHER RADIO OR LOCAL NEWS MEDIA FOR THE LATEST NATIONAL WEATHER SERVICE FORECASTS AND STATEMENTS. ...WEATHER FACTORS... A LOW PRESSURE SYSTEM OVER KENTUCKY AND ANOTHER LOW OVER SOUTHERN VIRGINIA WILL MOVE SLOWLY NORTH AND EAST TODAY AND FRIDAY. THIS WILL PULL ATLANTIC MOISTURE INTO THE STATE RESULTING IN A MIXED BAG OF PRECIPITATION ACROSS NORTHCENTRAL PENNSYLVANIA THROUGH FRIDAY. JSN
Special weather statement, Mar 4, 4:29 PM EST, 2 hours 45 minutes before
PAZ007-008-014-050000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLIAMSPORT PA 430 PM EST THU FEB 4 1993 ...WINTER WEATHER ADVISORY IN EFFECT TONIGHT AND FRIDAY FOR ALL OF NORTHCENTRAL PENNSYLVANIA... ...WINTER STORM WARNING FOR NORTHERN CLINTON COUNTY... ...LOCALLY STRONG WINDS EXPECTED ACROSS THE REGION THIS EVENING... ...ADVISORY INFORMATION... A WINTER WEATHER ADVISORY IS IN EFFECT TONIGHT AND FRIDAY ACROSS THE NORTHERN TIER COUNTIES OF NORTHCENTRAL PENNSYLVANIA. SNOW AMOUNTS RANGING FROM 3 TO 6 INCHES WILL FALL IN THE ADVISORY AREA. THIS INCLUDES...BRADFORD...NORTHERN LYCOMING...TIOGA AND SULLIVAN COUNTIES. AN ADVISORY FOR 2 TO 4 INCHES OF SNOW IS ALSO IN EFFECT FOR THE WEST BRANCH AND MIDDLE SUSQUEHANNA VALLEYS. THIS INCLUDES LOCK HAVEN... WILLIAMSPORT...LEWISBURG AND SUNBURY. LOCALLY...AMOUNTS OF UP TO 10 INCHES OF SNOW ARE ALSO POSSIBLE ACROSS NORTHERN CLINTON COUNTY. ...LATE THIS AFTERNOON... A MIXTURE OF RAIN...SLEET AND SNOW CONTINUED TO FALL ACROSS ALL OF THE REGION LATE THIS AFTERNOON. NATIONAL WEATHER SERVICE SPOTTERS HAVE ALSO REPORTED ISOLATED POCKETS OF FREEZING RAIN. ICE WAS ACCUMULATING ON TREES AND POWER LINES ACROSS SULLIVAN COUNTY. SNOW AMOUNTS HAVE REMAINED LIGHT BUT SIGNIFICANT ACCUMULATIONS OF SLEET HAVE BEEN REPORTED. AS OF 4 PM...NEARLY ONE INCH /.8/ OF SLEET HAD ACCUMULATED HERE AT THE WILLIAMSPORT-LYCOMING COUNTY AIRPORT. NEARLY TWO INCHES OF SLEET WAS REPORTED NEAR HEPBURNVILLE JUST NORTH OF WILLIAMSPORT. REPORTS FROM LOCAL POLICE AND HAM RADIO OPERATORS INDICATE THAT ROADS ARE SLIPPERY...ESPECIALLY IN THE HIGHER ELEVATIONS. STRONG AND GUSTY WINDS HAVE BEEN REPORTED IN THE HIGHER ELEVATIONS WITH SPEEDS ESTIMATED BETWEEN 40 AND 50 MPH BY NATIONAL WEATHER SERVICE SPOTTERS. ..TONIGHT... THE MIXED PRECIPITATION WILL CHANGE OVER TO SNOW ACROSS THE NORTHERN TIER COUNTIES THIS EVENING. A CHANGE OVER TO SNOW SHOULD TAKE PLACE IN THE WEST BRANCH AND MIDDLE SUSQUEHANNA VALLEYS NEAR MIDNIGHT. ...PRECAUTIONS... DRIVING CONDITIONS WILL BECOME HAZARDOUS TONIGHT THROUGHOUT THE REGION. WHERE RAIN AND SLEET FELL DURING THE AFTERNOON...ROADS WILL BECOME VERY SLIPPERY AS TEMPERATURES FALL BELOW FREEZING. ANOTHER WEATHER CONCERN FOR THIS EVENING WILL BE THE WIND WHICH MAY GUST BETWEEN 40 AND 50 MPH AT TIMES. THE GUSTY WINDS COULD DOWN POWER LINES AND SMALL TREE LIMBS AND WILL BE ESPECIALLY HAZARDOUS FOR HIGH PROFILE VEHICLES. THIS IS A RAPIDLY CHANGING WEATHER SITUATION. LISTEN TO NOAA WEATHER RADIO OR LOCAL NEWS MEDIA FOR THE LATEST NATIONAL WEATHER SERVICE FORECASTS AND STATEMENTS. ...WEATHER FACTORS... A LOW PRESSURE SYSTEM OVER SOUTHERN OHIO AND A SECOND LOW OVER EASTERN VIRGINIA WILL MOVE SLOWLY NORTH AND EAST TONIGHT AND FRIDAY. THIS INTENSE STORM SYSTEM WILL PROVIDE THE WINTER WEATHER TO THE REGION. JSN
Special weather statement, Mar 4, 5:00 PM EST, 2 hours 14 minutes before
PAZ007-008-014-050100- SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE WILLIAMSPORT PA 600 PM EST THU FEB 4 1993 ...WINTER WEATHER ADVISORY IN EFFECT TONIGHT AND FRIDAY FOR ALL OF NORTHCENTRAL PENNSYLVANIA... ...WINTER STORM WARNING FOR NORTHERN CLINTON COUNTY... ...ADVISORY INFORMATION... A WINTER WEATHER ADVISORY IS IN EFFECT TONIGHT AND FRIDAY ACROSS THE NORTHERN TIER COUNTIES OF NORTHCENTRAL PENNSYLVANIA. SNOW AMOUNTS RANGING FROM 3 TO 6 INCHES WILL FALL IN THE ADVISORY AREA. THIS INCLUDES...BRADFORD...NORTHERN LYCOMING...TIOGA AND SULLIVAN COUNTIES. AN ADVISORY FOR 2 TO 4 INCHES OF SNOW IS ALSO IN EFFECT FOR THE WEST BRANCH AND MIDDLE SUSQUEHANNA VALLEYS. THIS INCLUDES LOCK HAVEN... WILLIAMSPORT...LEWISBURG AND SUNBURY. LOCALLY...AMOUNTS OF UP TO 10 INCHES OF SNOW ARE ALSO POSSIBLE ACROSS NORTHERN CLINTON COUNTY. ...LATE THIS AFTERNOON... A MIXTURE OF RAIN...SLEET AND SNOW CONTINUED TO FALL ACROSS ALL OF THE REGION LATE THIS AFTERNOON. NATIONAL WEATHER SERVICE SPOTTERS HAVE ALSO REPORTED ISOLATED POCKETS OF FREEZING RAIN. ICE WAS ACCUMULATING ON TREES AND POWER LINES ACROSS SULLIVAN COUNTY. SNOW AMOUNTS HAVE REMAINED LIGHT BUT SIGNIFICANT ACCUMULATIONS OF SLEET HAVE BEEN REPORTED. AS OF 6 PM...THE PRECIPITATION WAS ALL SNOW ACROSS THE NORTHERN TIER COUNTIES WHERE 2 TO 3 INCHES OF NEW SNOW HAD FALLEN. FARTHER SOUTH...THE PRECIPITATION WAS MAINLY A MIX OF RAIN...SLEET AND SNOW. NEARLY ONE INCH OF SLEET HAD ACCUMULATED HERE AT THE WILLIAMSPORT-LYCOMING COUNTY AIRPORT. NEARLY TWO INCHES OF SLEET WAS REPORTED NEAR HEPBURNVILLE JUST NORTH OF WILLIAMSPORT. REPORTS FROM LOCAL POLICE AND HAM RADIO OPERATORS INDICATE THAT ROADS ARE SLIPPERY...ESPECIALLY IN THE HIGHER ELEVATIONS. ..TONIGHT... THE MIXED PRECIPITATION WILL CHANGE OVER TO SNOW ACROSS THE REGION TONIGHT. MOST AREAS IN THE NORTHERN TIER COUNTIES HAVE ALREADY CHANGED OVER TO SNOW...WITH HEAVY SNOW FALLING IN SOME PLACES. ...PRECAUTIONS... DRIVING CONDITIONS WILL BECOME HAZARDOUS TONIGHT THROUGHOUT THE REGION. WHERE RAIN AND SLEET FELL DURING THE AFTERNOON...ROADS WILL BECOME VERY SLIPPERY AS TEMPERATURES FALL BELOW FREEZING. THIS IS A RAPIDLY CHANGING WEATHER SITUATION. LISTEN TO NOAA WEATHER RADIO OR LOCAL NEWS MEDIA FOR THE LATEST NATIONAL WEATHER SERVICE FORECASTS AND STATEMENTS. ...WEATHER FACTORS... A LOW PRESSURE SYSTEM OVER SOUTHERN OHIO AND A SECOND LOW OVER EASTERN VIRGINIA WILL MOVE SLOWLY NORTH AND EAST TONIGHT AND FRIDAY. THIS INTENSE STORM SYSTEM WILL PROVIDE THE WINTER WEATHER TO THE REGION. KJF
Special weather statement, Mar 4, 5:55 PM EST, 1 hour 19 minutes before
PAZ007-008-014-050100- SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE WILLIAMSPORT PA 545 PM EST THU FEB 4 1993 ...WINTER WEATHER ADVISORY IN EFFECT TONIGHT AND FRIDAY FOR ALL OF NORTHCENTRAL PENNSYLVANIA... ...WINTER STORM WARNING FOR NORTHERN CLINTON COUNTY... ...LOCALLY STRONG WINDS EXPECTED ACROSS THE REGION THIS EVENING... ...ADVISORY INFORMATION... A WINTER WEATHER ADVISORY IS IN EFFECT TONIGHT AND FRIDAY ACROSS THE NORTHERN TIER COUNTIES OF NORTHCENTRAL PENNSYLVANIA. SNOW AMOUNTS RANGING FROM 3 TO 6 INCHES WILL FALL IN THE ADVISORY AREA. THIS INCLUDES...BRADFORD...NORTHERN LYCOMING...TIOGA AND SULLIVAN COUNTIES. AN ADVISORY FOR 2 TO 4 INCHES OF SNOW IS ALSO IN EFFECT FOR THE WEST BRANCH AND MIDDLE SUSQUEHANNA VALLEYS. THIS INCLUDES LOCK HAVEN... WILLIAMSPORT...LEWISBURG AND SUNBURY. LOCALLY...AMOUNTS OF UP TO 10 INCHES OF SNOW ARE ALSO POSSIBLE ACROSS NORTHERN CLINTON COUNTY. ...LATE THIS AFTERNOON... A MIXTURE OF RAIN...SLEET AND SNOW CONTINUED TO FALL ACROSS ALL OF THE REGION LATE THIS AFTERNOON. NATIONAL WEATHER SERVICE SPOTTERS HAVE ALSO REPORTED ISOLATED POCKETS OF FREEZING RAIN. ICE WAS ACCUMULATING ON TREES AND POWER LINES ACROSS SULLIVAN COUNTY. SNOW AMOUNTS HAVE REMAINED LIGHT BUT SIGNIFICANT ACCUMULATIONS OF SLEET HAVE BEEN REPORTED. AS OF 4 PM...NEARLY ONE INCH /.8/ OF SLEET HAD ACCUMULATED HERE AT THE WILLIAMSPORT-LYCOMING COUNTY AIRPORT. NEARLY TWO INCHES OF SLEET WAS REPORTED NEAR HEPBURNVILLE JUST NORTH OF WILLIAMSPORT. REPORTS FROM LOCAL POLICE AND HAM RADIO OPERATORS INDICATE THAT ROADS ARE SLIPPERY...ESPECIALLY IN THE HIGHER ELEVATIONS. STRONG AND GUSTY WINDS HAVE BEEN REPORTED IN THE HIGHER ELEVATIONS WITH SPEEDS ESTIMATED BETWEEN 40 AND 50 MPH BY NATIONAL WEATHER SERVICE SPOTTERS. ..TONIGHT... THE MIXED PRECIPITATION WILL CHANGE OVER TO SNOW ACROSS THE REGION TONIGHT. MOST AREAS IN THE NORTHERN TIER COUNTIES HAVE ALREADY CHANGED OVER TO SNOW...WITH HEAVY SNOW FALLING IN SOME PLACES. ...PRECAUTIONS... DRIVING CONDITIONS WILL BECOME HAZARDOUS TONIGHT THROUGHOUT THE REGION. WHERE RAIN AND SLEET FELL DURING THE AFTERNOON...ROADS WILL BECOME VERY SLIPPERY AS TEMPERATURES FALL BELOW FREEZING. THIS IS A RAPIDLY CHANGING WEATHER SITUATION. LISTEN TO NOAA WEATHER RADIO OR LOCAL NEWS MEDIA FOR THE LATEST NATIONAL WEATHER SERVICE FORECASTS AND STATEMENTS. ...WEATHER FACTORS... A LOW PRESSURE SYSTEM OVER SOUTHERN OHIO AND A SECOND LOW OVER EASTERN VIRGINIA WILL MOVE SLOWLY NORTH AND EAST TONIGHT AND FRIDAY. THIS INTENSE STORM SYSTEM WILL PROVIDE THE WINTER WEATHER TO THE REGION. KJF
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 4, 9:11 PM EST | Flash Flood Warning | CTP | Lancaster | 8 hr |
| Mar 4, 9:11 PM EST | Flash Flood Warning | CTP | Cumberland | 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.