Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 23, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at May 10, 2000, 12:28 PM EDT for Blair County, Pennsylvania. It was in force for 62 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 10, 2000, 12:28 PM EDT (16:28 UTC)
- Expired
- May 10, 2000, 1:30 PM EDT
- In force
- 62 min
- Issued by
- NWS State College, PA
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Blair County, PA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 10, 12:30 PM EDT | Thunderstorm Wind 50 E | Holidaysburg, PA | Large limbs were blown down and a window was broken at the Clark Street campus of Providence Academy. |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 10, 10:45 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 4.5 hours before the alert went out and 146 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
- 590 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 1098 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KCTP 101629 SVRCTP PAC013-101730- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 1228 PM EDT WED MAY 10 2000 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... BLAIR COUNTY. * UNTIL 130 PM EDT. * AT 1226 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES SOUTHEAST OF HOLLIDAYSBURG...MOVING NORTHEAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... WILLIAMSBURG AT 1245 PM EDT. PEA SIZE HAIL HAS BEEN REPORTED IN THE HOLLIDAYSBURG AREA. THIS IS A DANGEROUS STORM. STAY INDOORS AWAY FROM WINDOWS. .END/ GRUMM/ONDREJIK ' LAT...LON 4036 7855 4023 7839 4054 7814 4076 7827
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 10, 9:25 AM EDT, 3 hours 3 minutes earlier.
Area forecast discussion, May 10, 9:25 AM EDT, 3 hours 3 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 925 AM EDT WED MAY 10 2000 TSRA FROM WARREN COUNTY BACK TO BUTLER COUNTY MOVG NE WILL MISS AREAS S AND E OF THE MTNS. THERE IS A LINE OF SPKLS FROM ELK COUNTY DOWN TO SOMERSET COUNTY THAT IS ALSO MOVG NE. DRIER DEWPTS OVR THE ALLEGHENIES DESPITE THESE SPKLS THEN DEWPTS RISE AGAIN OVR THE HEADWATERS TO THE OH VAL. PRES RISES AND DRIER DEWPTS AGAIN IN THE CMH AREA DESPITE THE CONTINUING SW WIND INDICATE FROPA HAS OCCURRED THERE. SO FRONT AT 12Z APPRS TO BE JUST TO W OF CLE THRU CMH TO HTS. FRONT APPRS TO BE MOVG E ABOUT 30 KTS. PURE EXTRAPOLATION PUTS THE FRONT FROM W WARREN COUNTY TO LBE AROUND 16Z AND TO IPT TO HGR BY 20Z. MESO ETA SHOWS ANOTHER SURGE OF 85H WINDS ARRIVING JUST W OF FROPA BY 21Z. THIS WILL LIKELY FIRE SOME DECENT CONVECTION FROM MID AFTN INTO THE EVE ALG THE FRONT AS IT MOVES E. BY 00Z ON THE 11TH THE FRONT IS OVR NJ AND MOVG AWAY. SO OUR WINDOW OF OPPORTUNITY WILL BE FROM 18-22Z AND ALL OF IT E OF THE ALLEGHENIES UNLESS A FEW OF THE STORMS MOVG ACRS THE NW THIS AM BECOME SVR. BASED ON WHAT HAPPENNED OVNT IT APPRS OUR VIL OF THE DAY WOULD BE AROUND 40. STRMS OVR THE NW ARE BETWEEN 30 AND 40 NOW. THEY SHUD DIMINISH DURG THE NEXT FEW HRS. SWODY1 HAS SLITE RISK OVR OUR ENTIRE CWA AND STATEMENT BEING ISSUED ATTM. .CTP...NONE. HEAD
In the hours before
Special weather statement, May 10, 9:16 AM EDT, 3 hours 12 minutes before
PAZ006-011-012-018-019-025>028-034>037-041-042-045-046-049>053- 056>059-063>066-101900- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 916 AM EDT WED MAY 10 2000 ...SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON... A COLD FRONT WILL PUSH THROUGH CENTRAL AND EASTERN PENNSYLVANIA THIS AFTERNOON...PRODUCING SHOWERS AND THUNDERSTORMS. ANY STORMS THAT FORM WILL HAVE THE POTENTIAL OF PRODUCING DAMAGING WIND GUSTS ANID ISOLATED LARGE HAIL. SKYWARN SPOTTER NETWORKS MAY NEED TO BE ACTIVATED LATER TODAY. .END/ FITZGERALD
Local storm report, May 10, 10:46 AM EDT, 1 hour 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE, PA
1046 AM EDT WED MAY 10 2000
TIME(EDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1015 AM 1.5 N WARRENSVILLE PA 1.00 INCH HAIL
05/10/00 LYCOMING
DJOLocal storm report, May 10, 10:55 AM EDT, 1 hour 33 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE, PA
1055 AM EDT WED MAY 10 2000
TIME(EDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1015 AM 1.5 N WARRENSVILLE PA 1.00 INCH HAIL
05/10/00 LYCOMING
1030 AM MIDDLE PAXTON BORO PA .75 INCH HAIL
05/10/00 DAUPHIN
1151 AM PORT ALLEGHENY PA .88 INCH HAIL
05/10/00 MCKEAN
1155 AM 2 N PORT ALLEGHENY PA 1.00 INCH HAIL
05/10/00 MCKEAN
DJOSpecial weather statement, May 10, 11:20 AM EDT, 1 hour 8 minutes before
PAZ005-006-010>012-017>019-024>028-033>037-041-045-046-049>053- 056>059-063>066-102100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 1120 AM EDT WED MAY 10 2000 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 500 PM THIS AFTERNOON FOR THE FOLLOWING COUNTIES IN CENTRAL PENNSYLVANIA... ADAMS...BEDFORD...BLAIR...CAMBRIA...CAMERON...CENTRE...CLEARFIELD... CLINTON...COLUMBIA...CUMBERLAND...DAUPHIN...ELK...FRANKLIN... FULTON...HUNTINGDON...JUNIATA...LANCASTER...LEBANON...LYCOMING... MCKEAN...MIFFLIN...MONTOUR...NORTHUMBERLAND...PERRY...POTTER... SCHUYLKILL...SNYDER ...SOMERSET...SULLIVAN...TIOGA...UNION...YORK. 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 /RXR
Local storm report, May 10, 11:58 AM EDT, 30 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE, PA
1055 AM EDT WED MAY 10 2000
TIME(EDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1015 AM 1.5 N WARRENSVILLE PA 1.00 INCH HAIL
05/10/00 LYCOMING
1030 AM MIDDLE PAXTON BORO PA .75 INCH HAIL
05/10/00 DAUPHIN
1151 AM PORT ALLEGHENY } PA .88 INCH HAIL
05/10/00 MCKEAN
1155 AM 2 N PORT ALLEGHENY PA 1.00 INCH HAIL
05/10/00 MCKEAN
DJOThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 4:33 AM EDT | Severe Thunderstorm Warning | CTP | Elk | 57 min |
| May 10, 5:54 AM EDT | Severe Thunderstorm Warning | CTP | McKean | 36 min |
| May 10, 10:09 AM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 51 min |
| May 10, 10:26 AM EDT | Severe Thunderstorm Warning | CTP | Sullivan | 64 min |
| May 10, 10:52 AM EDT | Severe Thunderstorm Warning | CTP | Elk | 53 min |
| May 10, 11:10 AM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Perry | 65 min |
| May 10, 11:17 AM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 58 min |
| May 10, 11:28 AM EDT | Severe Thunderstorm Warning | CTP | McKean | 62 min |
| May 10, 11:41 AM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk | 49 min |
| May 10, 11:42 AM EDT | Tornado Warning | CTP | Dauphin | 33 min |
| May 10, 11:48 AM EDT | Severe Thunderstorm Warning | CTP | York | 57 min |
| May 10, 12:05 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon, Schuylkill | 55 min |
| May 10, 12:14 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield | 46 min |
| May 10, 12:19 PM EDT | Severe Thunderstorm Warning | CTP | Columbia | 56 min |
| May 10, 12:32 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Somerset | 58 min |
| May 10, 12:40 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton | 65 min |
| May 10, 12:49 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 71 min |
| May 10, 12:58 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Perry | 62 min |
| May 10, 1:05 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 70 min |
| May 10, 1:09 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin | 66 min |
| May 10, 1:18 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 57 min |
| May 10, 1:40 PM EDT | Severe Thunderstorm Warning | CTP | Northumberland | 65 min |
| May 10, 1:45 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 45 min |
| May 10, 1:58 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Northumberland | 62 min |
| May 10, 2:12 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 63 min |
| May 10, 2:17 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Schuylkill | 58 min |
| May 10, 2:45 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Franklin | 60 min |
| May 10, 2:51 PM EDT | Severe Thunderstorm Warning | CTP | Sullivan | 39 min |
| May 10, 3:07 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Northumberland | 68 min |
| May 10, 3:19 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, York | 86 min |
| May 10, 3:56 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 64 min |
| May 10, 4:27 PM EDT | Tornado Warning | CTP | Lancaster | 48 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.