Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 67, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at May 18, 2000, 8:27 PM EDT for Cameron County, Pennsylvania. It was in force for 33 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- May 18, 2000, 8:27 PM EDT (00:27 UTC)
- Expired
- May 18, 2000, 9:00 PM EDT
- In force
- 33 min
- Issued by
- NWS State College, PA
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Cameron County, PA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 18, 8:40 PM EDT | Thunderstorm Wind | Driftwood, PA | Trees down on Route 872. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 0.5 hours before the alert went out and 184 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
- 547 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
299 WUUS51 KCTP 190028 SVRCTP PAC023-190100- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 827 PM EDT THU MAY 18 2000 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN CAMERON COUNTY. * UNTIL 900 PM EDT. * AT 823 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 15 MILES SOUTHEAST OF ST. MARYS...OR ABOUT 12 MILES SOUTHWEST OF DRIFTWOOD...MOVING EAST AT 55 MPH. THIS IS A DANGEROUS STORM. STAY INDOORS AWAY FROM WINDOWS. .END/LA CORTE LAT...LON 4139 7827 4124 7827 4122 7812 4135 7803
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at May 18, 3:15 PM EDT, 5 hours 12 minutes earlier.
Area forecast discussion, May 18, 3:15 PM EDT, 5 hours 12 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 315 PM EDT THU MAY 18 2000 +TSRAS MOVG INTO NW PA AND W NY ARE MOVG DUE E. ERI HAD .85 IN ONE HOUR. SO FAR NO REPORTS OF SEVERE WX WITH THIS LINE...JUST HEAVY RAIN. THE WIND IS LINED UP ALG THE LINE BUT THERE APPEARS TO BE A TENDENCY FOR A LEWP TO DEVELOP. AT THE SAME TIME THE LAPS SOUNDINGS SHOW THE CAP STRENGTHENING OVER CPA. WE ARE STARTING TO GET SEVERE REPORTS FROM N OF US. A CALL TO WARREN COUNTY INDICATES WIND DAMAGE IN THE CITY OF WARREN. THE FRONT WILL SLIP SOUTH INTO OUR N COUNTIES DURING THE EARLY EVE. THIS WILL FOCUS TSRAS ACRS CPA. SPC HAS CALLED TO COORD WITH US PRIVATELY AND WITH A CONF CALL. APPRECIATE THE COORD. AGREE WITH THE NEED FOR A WATCH ACROSS CPA THIS AFTN AND EVE. THERE IS ALREADY SEVERE WX OCCURING AND THE LINE IS MOVING INTO HEATED AND WELL MIXED AIR MASS WITH STRONG PRES FALLS AHEAD OF THE LINE. ONCE COLD FRONT DROPS IN THE THREAT FOR SEVERE WX ENDS BUT THE THREAT FOR +RA DOES NOT. THE EMPHASIS FOR +RA WILL SHIFT SOUTH INTO THE LAURELS AND SC MTNS. TEMPS WILL REMAIN VERY MILD FOR THIS TIME OF YEAR OVNT IN THE SOUTH. THERE IS LOTS OF CONVERGENCE AHEAD OF THE FRONT WITH HIGH DEWPTS UP TO 85H. DURING FRI A STEADY STRATIFORM RAIN APPRS LIKELY AND WILL LEAVE HIGH POPS IN ZFP. THIS MAY CONTINUE INTO FRI NITE AND SAT. MOS NUMBERS SEEM TOO HI FOR SAT AND LOWERED MAXES ACCORDINGLY. AVN SHOWS ANOTHER WAVE COMING OUT FOR SUN AND THIS FOLLOWS CLOSELY WITH 00Z MRF. THEREFORE INTRODUCING CHC RAIN FOR SUNDAY OVR THE S AND CHC SHRA N. IN THE EXTENDED...MON MAY BREAK AS WE WILL BE BETWEEN SYSTEMS. THIS WILQL BRING TEMPS UP. TUE ANOTHER CHC OF SHRA. WHAT A PATTERN SHIFT! .CTP...NONE. HEAD
In the hours before
Special weather statement, May 18, 3:26 PM EDT, 5 hours 1 minute before
PAZ004>006-010-011-017-018-024>028-033>037-041-042-045-049>053- 056>059-063-190000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 326 PM EDT THU MAY 18 2000 A SEVERE THUNDERSTORM WATCH IS IN EFFECT THIS AFTERNOON AND EVENING UNTIL 8 PM FOR THE FOLLOWING COUNTIES IN CENTRAL PENNSYLVANIA... BEDFORD...CAMBRIA...CAMERON...CENTRE...CLEARFIELD...CLINTON... COLUMBIA...CUMBERLAND...DAUPHIN...ELK...FRANKLIN...FULTON... HUNTINGDON...JUNIATA...LEBANON...BLAIR...LYCOMING... MCKEAN...MIFFLIN...MONTOUR...NORTHUMBERLAND...PERRY... POTTER...SCHUYLKILL...SNYDER...SOMERSET...SULLIVAN... TIOGA...AND UNION. SEVERE THUNDERSTORMS PRODUCE LARGE DAMAGING HAIL 3/4 OF AN INCH IN DIAMETER OR LARGER...DAMAGING THUNDERSTORM WINDS OF 58 MPH OR GREATER AND DANGEROUS CLOUD TO GROUND LIGHTNING. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. .END/LAMBERT
Special weather statement, May 18, 3:51 PM EDT, 4 hours 36 minutes before
PAZ004>006-010-011-017-018-024>028-033>037-041-042-045-049>053- 056>059-063-190000- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE STATE COLLEGE PA 351 PM EDT THU MAY 18 2000 A SEVERE THUNDERSTORM WATCH IS IN EFFECT THIS AFTERNOON AND EVENING UNTIL 8 PM FOR THE FOLLOWING COUNTIES IN CENTRAL PENNSYLVANIA... BEDFORD...CAMBRIA...CAMERON...CENTRE...CLEARFIELD...CLINTON... COLUMBIA...CUMBERLAND...DAUPHIN...ELK...FRANKLIN...FULTON... HUNTINGDON...JUNIATA...LEBANON...BLAIR...LYCOMING... MCKEAN...MIFFLIN...MONTOUR...NORTHUMBERLAND...PERRY... POTTER...SCHUYLKILL...SNYDER...SOMERSET...SULLIVAN...TIOGA... UNION...AND WARREN. SEVERE THUNDERSTORMS PRODUCE LARGE DAMAGING HAIL 3/4 OF AN INCH IN DIAMETER OR LARGER...DAMAGING THUNDERSTORM WINDS OF 58 MPH OR GREATER AND DANGEROUS CLOUD TO GROUND LIGHTNING. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. .END/LAMBERT CORRECTED TO INCLUDE WARREN COUNTY IN THE COUNTY LISTING
Local storm report, May 18, 4:55 PM EDT, 3 hours 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE, PA
455 PM EDT THU MAY 18 2000
TIME(EDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0230 PM WARREN PA WIND DAMAGE
05/18/00 WARREN LINES DOWN WITH A TREE ON
TRUCK
0245 PM KNOXVILLE PA WIND DAMAGE
05/18/00 TIOGA TREES DOWN ON POWERLINES
0245 PM WESTFIELD PA WIND DAMAGE
05/18/00 TIOGA TREES DOWN
0320 PM 15 SW LEWIS RUN PA WIND DAMAGE
05/18/00 MCKEAN TREES DOWN
0325 PM LAMONT PA WIND DAMAGE
05/18/00 ELK TREE DOWN
0330 PM ROULETTE PA WIND DAMAGE
05/18/00 POTTER TREES DOWN
0330 PM AUSTIN PA WIND DAMAGE
05/18/00 POTTER TREES DOWN
0333 PM WILCOX PA WIND DAMAGE
05/18/00 ELK TREES/POWERLINES DOWN
0340 PM ST MARYS PA WIND DAMAGE
05/18/00 ELK TREES DOWN
0340 PM JOHNSONBURG PA WIND DAMAGE
05/18/00 ELK POWERLINES DOWN
0420 PM RENOVO PA WIND DAMAGE
05/18/00 CLINTON TREES DOWN
0440 PM WILLIAMSPORT PA 62 MPH TSTM WIND GUST
05/18/00 LYCOMINGThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 8:00 PM EDT | Severe Thunderstorm Warning | CTP | Elk | 30 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2000Every severe thunderstorm warning in 2000
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.