Alert archive / Pennsylvania / Flash Flood Warnings in 1995
Flash Flood Warning 49, NWS State College, PA
NWS State College, PA issued this flash flood warning at Jul 17, 1995, 3:04 PM EDT for Somerset County, Pennsylvania. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 17, 1995, 3:04 PM EDT (19:04 UTC)
- Expired
- Jul 17, 1995, 6:00 PM EDT
- In force
- 3 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Somerset County, PA
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 7.1 hours before the alert went out and 103 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
- 1129 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 696 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 168 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCTP 171906 FFWCTP PAC009-111-172200- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 304 PM EDT MON JUL 17 1995 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 600 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...S... IN PENNSYLVANIA ...BEDFORD COUNTY...SOMERSET COUNTY AT 300 PM STATE COLLEGE DOPPLER RADAR SHOWED A CLUSTER OF SLOW MOVING THUNDERSTORMS FROM NORTHERN BEDFORD COUNTY SOUTHWEST INTO WESTERN SOMERSET COUNTY. THESE STORMS ARE MOVING EAST AT LESS THAN 10 MPH AND ARE TENDING TO REDEVELOP IN THE SAME AREA CAUSING LOCALLY TORRENTIAL RAINS AND FLOODING. 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. LA CORTE/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, 5 hours 19 minutes earlier.
Area forecast discussion, Jul 17, 9:45 AM EDT, 5 hours 19 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
Local storm report, Jul 17, 9:30 AM EDT, 5 hours 34 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
930 AM EDT TUE JUL 17 1995
...THE FOLLOWING IS A PRELIMINARY REPORT OF THE SEVERE WEATHER
AND FLOODING OBSERVED DURING THE SEVERE WX AND FLASH FLOOD EVENT
OF MONDAY AFTERNOON AND EVENING. ADDITIONS OR CORRECTIONS MAY BE
MADE AFTER FURTHER INFORMATION IS RECEIVED AND PROCESSED...
359 PM BEDFORD PA FLOODING IN NEW ENTERPRISE. HOUSE
SURROUNDED BY WATER. WATER RESCUE
ATTEMPTED ALONG SPRING RUN.
412 PM BEDFORD PA TREES DOWN NORTH OF BEDFORD.
524 PM CAMBRIA PA FLOODED ROADS ALONG SALTLICK
CREEK AND LAUREL RUN. STREAM
CHANNEL WALL COLLAPSED ALONG
LAUREL RUN IN NEW GERMANY.
720 PM LANCASTER PA IRONVILLE GUST REPORT 80 MPH.
SEVERAL TREES DOWN AND PEA SIZE
HAIL.
735 PM LANCASTER PA MARIETTA TREES DOWN AND VERY HEAVY
RAINS.
804 PM YORK PA TREES DOWN ON WIRES IN HANOVER.
ROAD CLOSED DUE TO DOWNED TREES
ACROSS ROADWAY. NUMEROUS CALLS
COMING IN ABOUT DOWNED TREES IN
HANOVER AREA.
813 PM CAMBRIA PA FLOOD WATERS REPORTED TO BE
RECEDING.
821 PM LANCASTER PA FLOODING, TREES DOWN, AND POSSIBLE
FUNNEL SITING MT JOY AND
LANCASTER CITY AREAS.
850 PM LANCASTER PA MOUNTVILLE RAINFALL REPORT 3.5
INCHES IN 1.5 HOURS.
851 PM LANCASTER PA STREET FLOODING IN LANCASTER CITY.
920 PM LANCASTER PA VEHICLES STUCK IN FLOODING IN MT
JOY ON WILLOW ST. WATER RESCUE IN
NORTH LANCASTER CITY FOR TRAPPED
MOTORISTS.
GRUMM/JUNGSpecial weather statement, Jul 17, 11:05 AM EDT, 3 hours 59 minutes before
PAZ004>006-010>012-017>019-024>028-033>036-037-041-042-045-046- 049>053-056>059-063>066-160600- SPECIAL WEATHER STATEMENT - SEVERE THUNDERSTORM POTENTIAL OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 1105 AM EDT MON JUL 17 1995 THE NATIONAL SEVERE STORMS FORECAST CENTER SAYS THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS OUR CENTRAL PENNSYLVANIA REGION LATER THIS AFTERNOON AND TONIGHT...AND SKYWARN SPOTTER NETWORKS MAY NEED TO BE ACTIVATED LATE IN THE DAY. A COLD FRONT OVER THE OHIO VALLEY WILL TRIGGER THUNDERSTORMS THIS AFTERNOON WHICH WILL MOVE ACROSS THE STATE LATER TODAY AND THIS EVENING. VERY WARM HUMID AIR IN PLACE OVER THE REGION WILL PROVIDE THE FUEL FOR STRONG TO POTENTIALLY SEVERE THUNDERSTORMS ...AS WELL LOCALLY TORRENTIAL DOWNPOURS AS THESE STORMS MOVE ACROSS. PERSONS PLANNING OUTDOOR ACTIVITIES SHOULD STAY TUNED TO NOAA WEATHER RADIO...LOCAL TV AND RADIO BROADCASTS FOR UPDATED FORECASTS AND STATEMENTPS. LA CORTE
Special weather statement, Jul 17, 1:26 PM EDT, 1 hour 38 minutes before
PAZ004-005-010-011-017-024-033-180000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 126 PM EDT MON JUL 17 1995 ...SEVERE THUNDERSTORM WATCH... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH VALID UNTIL 8PM EDT FORMUCH OF WESTERN PENNSYLVANIA TO INCLUDE THE FOLLOWING COUNTIES...WARREN MC KEAN ELK CAMERON CLEARFIELD CAMBRIA AND SOMERSET. A COLD FRONT IN OHIO WILL MOVE EAST TOWARD THE REGION. WARM HUMID AND UNSTABLE AIR OUT AHEAD OF THE FRONT WILL BE THE BREEDING GROUND FOR SHOWERS AND THUNDERSTORMS...SOME OF WHICH HAVE THE POTENTIAL TO BECOME LOCALLY SEVERE. LA CORTE END WWUS35KPUB 0
Special weather statement, Jul 17, 1:28 PM EDT, 1 hour 36 minutes before
PAZ004-005-010-011-017-024-033-180000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 126 PM EDT MON JUL 17 1995 ...SEVERE THUNDERSTROM WATCH... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH VALID UNTIL 8PM EDT FORMUCH OF WESTERN PENNSYLVANIA TO INCLUDE THE FOLLOWING COUNTIES...WARREN MC KEAN ELK CAMERON CLEARFIELD CAMBRIA AND SOMERSET. A COLD FRONT IN OHIO WILL MOVE EAST TOWARD THE REGION. WARM HUMID AND UNSTABLE AIR OUT AHEAD OF THE FRONT WILL BE THE BREEDING GROUND FOR SHOWERS AND THUNDERSTORMS...SOME OF WHICH HAVE THE POTENTIAL TO BECOME LOCALLY SEVERE. LA CORTE END
Special weather statement, Jul 17, 1:29 PM EDT, 1 hour 35 minutes before
PAZ004-005-010-011-017-024-033-180000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 126 PM EDT MON JUL 17 1995 ...SEVERE THUNDERSTORM WATCH... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH VALID UNTIL 8PM EDT FORMUCH OF WESTERN PENNSYLVANIA TO INCLUDE THE FOLLOWING COUNTIES...WARREN MC KEAN ELK CAMERON CLEARFIELD CAMBRIA AND SOMERSET. A COLD FRONT IN OHIO WILL MOVE EAST TOWARD THE REGION. WARM HUMID AND UNSTABLE AIR OUT AHEAD OF THE FRONT WILL BE THE BREEDING GROUND FOR SHOWERS AND THUNDERSTORMS...SOME OF WHICH HAVE THE POTENTIAL TO BECOME LOCALLY SEVERE. LA CORTE END
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 | 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, 7:44 PM EDT | Flash Flood Warning | CTP | Potter | 3 hr |
| 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.