Alert archive / Pennsylvania / Flash Flood Warnings in 1995
Flash Flood Warning 52, NWS State College, PA
NWS State College, PA issued this flash flood warning at Jul 17, 1995, 7:44 PM EDT for Potter County, Pennsylvania. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 17, 1995, 7:44 PM EDT (23:44 UTC)
- Expired
- Jul 17, 1995, 10:45 PM EDT
- In force
- 3 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Potter County, PA
The radar
The State College radar (KCCX), 92 km from the middle of the area, began a volume at 23:44 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
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 11.7 hours before the alert went out and 147 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
- 140 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 801 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 116 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCTP 172346 FFWCTP PAC105-180245- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 744 PM EDT MON JUL 17 1995 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1045 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...... IN PENNSYLVANIA ...POTTER COUNTY AT 740 PM... WEATHER SERVICE RADAR IN STATE COLLEGE SHOWED A LINE OF SLOW MOVING THUNDERSTORMS EXTENING FROM AUSTIN NORTHEAST THROUGH SWEDEN VALLEY AND THEN ON TO MILLS. RADAR ESTIMATES THAT THESE THUNDERSTORMS ARE PRODUCING 2 TO 3 INCHES OF RAINFALL PER HOUR. THE HEAVIEST AMOUNTS HAVE BEEN NEAR COUDERSPORT...WITH AN OBSERVER REPORTED NEARLY 2 INCHES OF RAIN BETWEEN 630 AND 730 PM. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE 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. JUNG/GRUMM
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.
NWS State College, PA wrote its last area forecast discussion before this flash flood warning went out at Jul 17, 9:45 AM EDT, 9 hours 59 minutes earlier.
Area forecast discussion, Jul 17, 9:45 AM EDT, 9 hours 59 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 945 AM EDT MON JUL 17 1995 LOOKS LIKE ANOTHER POTENTIALLY SEVERE DAY ACROSS THE REGION. TD'S IN THE LOW TO MID 70S ACROSS OHIO WHERE SUN IS BEGINNING TO COOK THE GROUND AS THIS IS BEING TYPED. SEVERAL LOW LEVEL BOUNDARIES IN WARM SECTOR TO ACT AS FOCUSSING MECHANISMS. SEVERE CHECKLIST HAS 16 OF 20 YES'S. MAIN NO'S ARE FOR WINDS AND WEAK PVA. WE ARE NOT IN THE BEST QUADS OF UPPER JET BUT STRONG LOW LEVEL FORCING AND INSTABILITY SHUD BE ABLE TO OVERCOME THIS. MOISTURE CONVG ASSOC WITH LOW LEVEL TROF/FRONT WILL MOVE ACROSS AT MAX HEATING TO AID IN ORGANIZATION. SATELLITE SHOWS DYING MCS SLIDING EAST ACROSS THE AREA NOW. NOT MUCH IN THE WAY OF RESIDUAL CLOUDINESS SEEMS TO BE UPSTREAM. LOOKING AT PIT AND DAY SOUNDINGS SHOWS LI'S ALREADY WELL BELOW ZERO WITH WEAK CAPS. PIT WAS LIKELY IN CONVECTION AT RELEASE TIME SO DAY MAY BE MORE REPRESENTATIVE. A SMALL AMOUNT OF COOKING OF SFC TEMPS YIELDS LI'S TO -8 OR SO WITH CAPES OVER 3000. AFTER NOISY AFTERNOON UPPER HGHTS STILL FALLING THROUGH TOMORROW SPELLING EVENTUAL RELIEF...BUT LINGERING INSTABILITY AND SFC FRONT/ TROF COULD LIGHT UP ERN PARTS OF THE A REA AGAIN TOM. FEEL WRN ZONES WILL NOT SEE MUCH AS DRY STABLE AIR ADVECTS IN. SFC BASED CROSS TOTALS AND K INDICES TAKE A DIVE DURING TOM PM. LA CORTE
In the hours before
Special weather statement, Jul 17, 3:54 PM EDT, 3 hours 50 minutes before
PAZ004>006-010>012-017-018-019-024-025>028-033-034>037-041-042-045- 046-049>053-056>059-063>066-170200- SPECIAL WEATHER STATEMENT - SEVERE THUNDERSTORM WATCH NATIONAL WEATHER SERVICE STATE COLLEGE PA 354 PM EDT MON JUL 17 1995 THE NATIONAL SEVERE STRORMS FORECAST CENTER IN KANSAS CITY HAS ISSUED A SEVERE THUNDERSTORM WATCH EFFECTIVE UNTIL 1000 PM FOR THE FOLLOWING COUNTIES IN CENTRAL AND EASTERN PENNSYLVANIA: BEDFORD... FULTON... FRANKLIN... BLAIR... CENTRE... CLINTON... HUNTINGDON... MIFFLIN... SNYDER... UNION... ADAMS... CUMBERLAND... DAUPHIN... JUNIATA... LANCASTER... LEBANON... PERRY... SCHUYLKILL... SNYDER... YORK... LYCOMING... MONTOUR... COLUMBIA... POTTER... SULLIVAN... TIOGA... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM FOR SOMERSET... CAMBRIA... CLEARFIELD... ELK... CAMERON... WARREN AND MCKEAN COUNTIES. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND NEAR THE WATCH AREA. SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MPH... DEADLY LIGHTNING AND LARGH HAIL. A SEVERE THUNDERSTORM WARNING ON THE OTHERHAND MEANS THAT SEVERE THUNDERSTORMS ARE ALREADY OCCURRING. KEEP A WEATHER EYE TO THE SKY AND LISTEN FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. JUNG END WUUS01KPIT 0
Special weather statement, Jul 17, 4:06 PM EDT, 3 hours 38 minutes before
PAZ004>006-010>012-017-018-019-024-025>028-033-034>037-041-042-045- 046-049>053-056>059-063>066-170200- SPECIAL WEATHER STATEMENT - SEVERE THUNDERSTORM WATCH NATIONAL WEATHER SERVICE STATE COLLEGE PA 354 PM EDT MON JUL 17 1995 THE NATIONAL SEVERE STRORMS FORECAST CENTER IN KANSAS CITY HAS ISSUED A SEVERE THUNDERSTORM WATCH EFFECTIVE UNTIL 1000 PM FOR THE FOLLOWING COUNTIES IN CENTRAL AND EASTERN PENNSYLVANIA: BEDFORD... FULTON... FRANKLIN... BLAIR... CENTRE... CLINTON... HUNTINGDON... MIFFLIN... SNYDER... UNION... ADAMS... CUMBERLAND... DAUPHIN... JUNIATA... LANCASTER... LEBANON... PERRY... SCHUYLKILL... SNYDER... YORK... LYCOMING... MONTOUR... COLUMBIA... POTTER... SULLIVAN... TIOGA... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM FOR SOMERSET... CAMBRIA... CLEARFIELD... ELK... CAMERON... WARREN AND MCKEAN COUNTIES. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND NEAR THE WATCH AREA. SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MPH... DEADLY LIGHTNING AND LARGH HAIL. A SEVERE THUNDERSTORM WARNING ON THE OTHERHAND MEANS THAT SEVERE THUNDERSTORMS ARE ALREADY OCCURRING. KEEP A WEATHER EYE TO THE SKY AND LISTEN FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. JUNG END
Special weather statement, Jul 17, 6:30 PM EDT, 1 hour 14 minutes before
PAC009-013-021-023-027-033-035-047-055-057-061-067-083-087-105- 111-123-172330- SPECIAL WEATx/HUNTINGDON... BLAIR... BEDFORD... FULTON... AND FRANKLIN COUNTIES. THE SEVERE THUNDERSTORMS WHICH MOVED THROUGH PORTIONS OF THE REGION THIS AFTERNOON HAVE MOVED EAST OF THE REGION. THERE COULD BE A PASSING SHOWER OR THUNDERSTORM OVER THE REGION EARLY TONIGHT. GRUMM/MICHAUD WWUS35KCRW 0
Special weather statement, Jul 17, 6:30 PM EDT, 1 hour 14 minutes before
PAC009-013-021-023-027-033-035-047-055-057-061-067-083-087-105- 111-123-172330- SPECIAL WEATx/HUNTINGDON... BLAIR... BEDFORD... FULTON... AND FRANKLIN COUNTIES. THE SEVERE THUNDERSTORMS WHICH MOVED THROUGH PORTIONS OF THE REGION THIS AFTERNOON HAVE MOVED EAST OF THE REGION. THERE COULD BE A PASSING SHOWER OR THUNDERSTORM OVER THE REGION EARLY TONIGHT. GRUMM/MICHAUD WWUS35KCRW 0
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 11:10 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 80 min |
| Jul 17, 3:04 PM EDT | Flash Flood Warning | CTP | Somerset | 3 hr |
| Jul 17, 3:04 PM EDT | Flash Flood Warning | CTP | Bedford | 6 hr |
| Jul 17, 3:18 PM EDT | Flash Flood Warning | CTP | Cambria | 6 hr |
| Jul 17, 3:55 PM EDT | Severe Thunderstorm Warning | CTP | Bedford | 2 hr |
| Jul 17, 4:19 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Tioga | 56 min |
| Jul 17, 4:42 PM EDT | Severe Thunderstorm Warning | CTP | Fulton | 63 min |
| Jul 17, 6:51 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 69 min |
| Jul 17, 7:56 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 94 min |
Nearby
Flash Flood Warnings in Pennsylvania, 1995Every flash flood warning in 1995
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.