Alert archive / Pennsylvania / Flash Flood Warnings in 1994
Flash Flood Warning 18, NWS State College, PA
NWS State College, PA issued this flash flood warning at Aug 18, 1994, 3:40 AM EDT for Clearfield County, Clinton County, Pennsylvania. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Aug 18, 1994, 3:40 AM EDT (07:40 UTC)
- Expired
- Aug 18, 1994, 8:00 AM EDT
- In force
- 4 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
Counties Clearfield County, PA, Clinton County, PA
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 00:00Z, 7.7 hours before the alert went out and 189 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
- 1 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 577 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 34 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 180741 FFWCTP PAC033-035-181200- BULLETIN - EBS ACTIVATION REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 340 AM EDT THU AUG 18 1994 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A FLOOD WARNING FOR SMALL STREAMS AND POOR DRAINAGE EFFECTIVE UNTIL 800 AM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN PENNSYLVANIA ...CLEARFIELD COUNTY...CLINTON COUNTY AT 335 AM EDT... DOPPLER RADAR FROM STATE COLLEGE CONTINUED TO SHOW MODERATE TO HEAVY RAINFALL MOVING ACROSS CLEARFIELD AND CLINTON COUNTIES. REPORTS INDICATE THAT BOTH BALD EAGLE AND BEECH CREEKS IN CLINTON COUNTY WERE NEAR BANKFUL. ADDITIONAL RAINFALL WILL LIKELY CAUSE FLOODING ALONG THESE CREEKS. 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 RISING. NICOSIA
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 18, 12:16 AM EDT, 3 hours 24 minutes before
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066-180620- SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST NATIONAL WEATHER SERVICE STATE COLLEGE PA 1218 AM EDT THU AUG 18 1994 ...A SMALL STREAM AND URBAN FLOOD WATCH CONTINUES IN EFFECT OVERNIGHT FOR PORTIONS OF THE MIDDLE SUSQUEHANNA VALLEY ... A SMALL STREAM AND URBAN FLOOD WATCH CONTINUES IN EFFECT OVERNIGHT FOR THE FOLLOWING COUNTIES... LYCOMING... UNION... SNYDER... SULLIVAN... SOUTHERN CLINTON... MONTOUR... NORTHUMBERLAND... COLUMBIA AND SCHUYLKILL. AT 1205 AM EDT... DOPPLER RADAR SHOWED A LARGE AREA OF LIGHT TO MODERATE RAIN ACROSS NORTHERN PENNSYLVANIA AND THE MIDDLE SUSQUEHANNA VALLEY. THE AREA OF RAIN WAS MAINLY NORTH OF INTERSTATE 80... EXCEPT IN THE SUSQUEHANNA VALLEY WHERE RAIN EXTENDED FROM WILLIAMSPORT AND BERWICK TO JUST NORTH OF THE GREATER HARRISBURG AREA. SOUTH OF I-80 ACROSS THE CENTRAL AND SOUTH CENTRAL MOUNTAIN AREAS...RADAR SHOWED ONLY PATCHY AREAS OF LIGHT RAIN. THE LARGE AREA OF RAIN IS EXPECTED TO CONTINUE MOVING SLOWLY NORTHEAST LATE THIS EVENING WITH SIGNIFICANT RAINFALL CONTINUING MAINLY NORTH OF I-80 AND ACROSS THE MIDDLE SUSQUEHANNA VALLEY THROUGH 2 AM. AS A RESULT... A SMALL STREAM AND URBAN FLOOD WATCH CONTINUES OVERNIGHT FOR MUCH OF THE MIDDLE SUSQUEHANNA VALLEY. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. WATER ON ROADWAYS MAY BE HARD TO SEE. NICOSIA
Special weather statement, Aug 18, 12:18 AM EDT, 3 hours 22 minutes before
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066-180620- SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST NATIONAL WEATHER SERVICE STATE COLLEGE PA 1218 AM EDT THU AUG 18 1994 ...A SMALL STREAM AND URBAN FLOOD WATCH CONTINUES IN EFFECT OVERNIGHT FOR PORTIONS OF THE MIDDLE SUSQUEHANNA VALLEY ... A SMALL STREAM AND URBAN FLOOD WATCH CONTINUES IN EFFECT OVERNIGHT FOR THE FOLLOWING COUNTIES... LYCOMING... UNION... SNYDER... SULLIVAN... SOUTHERN CLINTON... MONTOUR... NORTHUMBERLAND... COLUMBIA AND SCHUYLKILL. AT 1205 AM EDT... DOPPLER RADAR SHOWED A LARGE AREA OF LIGHT TO MODERATE RAIN ACROSS NORTHERN PENNSYLVANIA AND THE MIDDLE SUSQUEHANNA VALLEY. THE AREA OF RAIN WAS MAINLY NORTH OF INTERSTATE 80... EXCEPT IN THE SUSQUEHANNA VALLEY WHERE RAIN EXTENDED FROM WILLIAMSPORT AND BERWICK TO JUST NORTH OF THE GREATER HARRISBURG AREA. SOUTH OF I-80 ACROSS THE CENTRAL AND SOUTH CENTRAL MOUNTAIN AREAS...RADAR SHOWED ONLY PATCHY AREAS OF LIGHT RAIN. THE LARGE AREA OF RAIN IS EXPECTED TO CONTINUE MOVING SLOWLY NORTHEAST LATE THIS EVENING WITH SIGNIFICANT RAINFALL CONTINUING MAINLY NORTH OF I-80 AND ACROSS THE MIDDLE SUSQUEHANNA VALLEY THROUGH 2 AM. AS A RESULT... A SMALL STREAM AND URBAN FLOOD WATCH CONTINUES OVERNIGHT FOR MUCH OF THE MIDDLE SUSQUEHANNA VALLEY. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. WATER ON ROADWAYS MAY BE HARD TO SEE. NICOSIA
Special weather statement, Aug 18, 12:50 AM EDT, 2 hours 50 minutes before
PAZ012-037-038-041-042-045-046-049>052-181750- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLIAMSPORT PA 1250 AM EDT THU AUG 18 1994 RADIO STATION WX-55 WILLIAMSPORT PENNSYLVANIA IS BACK ON THE AIR. FJG
Special weather statement, Aug 18, 2:10 AM EDT, 1 hour 30 minutes before
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066-180810- SPECIAL WEATHER STATEMENT - NATIONAL WEATHER SERVICE STATE COLLEGE PA 211 AM EDT THU AUG 18 1994 A SMALL STREAM AND URBAN FLOOD WATCH CONTINUES IN EFFECT OVERNIGHT FOR THE FOLLOWING COUNTIES... LYCOMING... UNION... SNYDER... SULLIVAN... SOUTHERN CLINTON... MONTOUR... NORTHUMBERLAND... COLUMBIA AND SCHUYLKILL. AT 2 AM EDT...STATE COLLEGE DOPPLER RADAR SHOWED AN AREA OF LIGHT TO MODERATE RAIN OVER TIOGA...POTTER AND MCKEAN COUNTIES. THIS AREA CONTINUES TO MOVE NORTH AT 20 MPH. RAIN ACROSS THESE AREAS SHOULD TAPER TO LIGHT SHOWERS DURING THE NEXT 1-2 HOURS. ACROSS SOUTHERN PENNSYLVANIA...A LARGE AREA OF SCATTERED SHOWERS CONTINUES TO PROGRESS NORTHWARD. THIS AREA WILL AFFECT AREAS THAT HAVE ALREADY HAVE HAD BETWEEN 1-3 INCHES...HENCE...RESIDENTS ARE ADVISED TO KEEP ABREST OF THE CURRENT WEATHER CONDITIONS AND TAKE ACTION IF A FLOOD WARNING IS ISSUED FOR YOUR COUNTY. ADDITIONAL RAINFALL ACROSS CENTRAL PENNSYLVANIA WILL LEAD TO FLOODING OF SMALL STREAMS AND LOW LYING AREAS. STAY TUNED TO NOAA WEATHER RADIO AND TV FOR FURTHER UPDATES AND WARNINGS. WINTHER
Special weather statement, Aug 18, 2:11 AM EDT, 1 hour 29 minutes before
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066-180810- SPECIAL WEATHER STATEMENT CORRECTED NATIONAL WEATHER SERVICE STATE COLLEGE PA 211 AM EDT THU AUG 18 1994 A SMALL STREAM AND URBAN FLOOD WATCH CONTINUES IN EFFECT OVERNIGHT FOR THE FOLLOWING COUNTIES... LYCOMING... UNION... SNYDER... SULLIVAN... SOUTHERN CLINTON... MONTOUR... NORTHUMBERLAND... COLUMBIA AND SCHUYLKILL. AT 2 AM EDT...STATE COLLEGE DOPPLER RADAR SHOWED AN AREA OF LIGHT TO MODERATE RAIN OVER TIOGA...POTTER AND MCKEAN COUNTIES. THIS AREA CONTINUES TO MOVE NORTH AT 20 MPH. RAIN ACROSS THESE AREAS SHOULD TAPER TO LIGHT SHOWERS DURING THE NEXT 1-2 HOURS. ACROSS SOUTHERN PENNSYLVANIA...A LARGE AREA OF SCATTERED SHOWERS CONTINUES TO PROGRESS NORTHWARD. THIS AREA WILL AFFECT AREAS THAT HAVE ALREADY HAVE HAD BETWEEN 1-3 INCHES...HENCE...RESIDENTS ARE ADVISED TO KEEP ABREAST OF THE CURRENT WEATHER CONDITIONS AND TAKE ACTION IF A FLOOD WARNING IS ISSUED FOR YOUR COUNTY. ADDITIONAL RAINFALL ACROSS CENTRAL PENNSYLVANIA MAY LEAD TO FLOODING OF SMALL STREAMS AND LOW LYING AREAS. STAY TUNED TO NOAA WEATHER RADIO AND TV FOR FURTHER UPDATES AND WARNINGS. WINTHER /
Special weather statement, Aug 18, 2:12 AM EDT, 1 hour 28 minutes before
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066-180810- SPECIAL WEATHER STATEMENT CORRECTED NATIONAL WEATHER SERVICE STATE COLLEGE PA 211 AM EDT THU AUG 18 1994 A SMALL STREAM AND URBAN FLOOD WATCH CONTINUES IN EFFECT OVERNIGHT FOR THE FOLLOWING COUNTIES... LYCOMING... UNION... SNYDER... SULLIVAN... SOUTHERN CLINTON... MONTOUR... NORTHUMBERLAND... COLUMBIA AND SCHUYLKILL. AT 2 AM EDT...STATE COLLEGE DOPPLER RADAR SHOWED AN AREA OF LIGHT TO MODERATE RAIN OVER TIOGA...POTTER AND MCKEAN COUNTIES. THIS AREA CONTINUES TO MOVE NORTH AT 20 MPH. RAIN ACROSS THESE AREAS SHOULD TAPER TO LIGHT SHOWERS DURING THE NEXT 1-2 HOURS. ACROSS SOUTHERN PENNSYLVANIA...A LARGE AREA OF SCATTERED SHOWERS CONTINUES TO PROGRESS NORTHWARD. THIS AREA WILL AFFECT AREAS THAT HAVE ALREADY HAVE HAD BETWEEN 1-3 INCHES...HENCE...RESIDENTS ARE ADVISED TO KEEP ABREAST OF THE CURRENT WEATHER CONDITIONS AND TAKE ACTION IF A FLOOD WARNING IS ISSUED FOR YOUR COUNTY. ADDITIONAL RAINFALL ACROSS CENTRAL PENNSYLVANIA MAY LEAD TO FLOODING OF SMALL STREAMS AND LOW LYING AREAS. STAY TUNED TO NOAA WEATHER RADIO AND TV FOR FURTHER UPDATES AND WARNINGS. WINTHER
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 11:25 PM EDT | Flash Flood Warning | CTP | Cameron | 2 hr |
| Aug 18, 1:08 AM EDT | Flash Flood Warning | CTP | Lycoming | 2 hr |
| Aug 18, 1:23 AM EDT | Flash Flood Warning | CTP | Tioga | 2 hr |
| Aug 18, 1:31 AM EDT | Flash Flood Warning | CTP | Potter | 119 min |
| Aug 18, 2:39 AM EDT | Flash Flood Warning | CTP | Union | 2 hr |
| Aug 18, 3:05 AM EDT | Flash Flood Warning | CTP | Tioga | 3 hr |
| Aug 18, 3:10 AM EDT | Flash Flood Warning | CTP | Lycoming | 3 hr |
| Aug 18, 3:52 AM EDT | Flash Flood Warning | CTP | Centre | 4 hr |
| Aug 18, 4:25 AM EDT | Flash Flood Warning | CTP | Tioga | 6 hr |
| Aug 18, 4:34 AM EDT | Flash Flood Warning | CTP | Lycoming, Union | 5 hr |
| Aug 18, 9:00 AM EDT | Flash Flood Warning | CTP | Cameron | 3 hr |
| Aug 18, 9:57 AM EDT | Flash Flood Warning | CTP | Lycoming, Tioga | 3 hr |
| Aug 18, 1:00 PM EDT | Flash Flood Warning | CTP | Lycoming | 5 hr |
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.