Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 53, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at May 13, 2000, 6:07 PM EDT for Adams County, Pennsylvania. It was in force for 68 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 13, 2000, 6:07 PM EDT (22:07 UTC)
- Expired
- May 13, 2000, 7:15 PM EDT
- In force
- 68 min
- Issued by
- NWS State College, PA
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Adams County, PA
The radar
The Sterling radar (KLWX), 104 km from the middle of the area, began a volume at 22:11 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 13, 6:30 PM EDT | Thunderstorm Wind | Gettysburg, PA | Tree down and a billboard blown over. |
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 13, 2:45 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 13, 5:00 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 10.1 hours before the alert went out and 107 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
- 680 J/kg
- Mixed-layer CIN
- -169 J/kg
- Mixed-layer LCL
- 1644 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- -23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.7
The text
As transmitted, in the capitals the NWS used until 2016.
094 WUUS51 KCTP 132208 SVRCTP PAC001-132315- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 607 PM EDT SAT MAY 13 2000 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... ADAMS COUNTY. * UNTIL 715 PM EDT. * AT 606 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES SOUTHEAST OF CHAMBERSBURG...OR ABOUT 14 MILES NORTHWEST OF FAIRFIELD...MOVING EAST AT 40 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... ARENDTSVILLE AT 620 PM EDT. BIGLERVILLE AT 625 PM EDT. YORK SPRINGS AT 630 PM EDT. THIS IS A DANGEROUS STORM WITH LARGE HAIL. STAY INDOORS AWAY FROM WINDOWS. .END/RXR/DUNHAM LAT...LON 3996 7763 3978 7756 3976 7698 4008 7712
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 13, 3:40 PM EDT, 2 hours 27 minutes earlier.
Area forecast discussion, May 13, 3:40 PM EDT, 2 hours 27 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 340 PM EDT SAT MAY 13 2000 COLD FRNT MVING INTO WRN PA ATTM PRODUCING A RELATIVELY NARROW BAND OF CONVECTION AHEAD OF IT. THIS NARROW LINE SHOULD CROSS NWRN THIRD OF CWA WITHIN THE NEXT HOUR. SCT SHOWERS AND THUNDERSTORMS WILL BE THE RULE THROUGH THIS EVENING FOR MUCH OF CWA...WITH BEST SEVERE THREAT LOOKING TO BE OVER THE LOWER SUSQ VALLEY ALONG THE MD BORDER. WILL INCLUDE EXTRA EVENING PD OR END PCPN AFTER EVENING IN FIRST PD TO COVER THIS ONGOING CONVECTION. ONCE FRNT PASSES...SKIES SHOULD CLEAR RATHER QUICKLY...WITH LACK OF POST FRONTAL STRATIFORM RAIN AREA. SUNDAY LOOKS TO BE A PRETTY NICE DAY BEHIND FRONT. THE EXCEPTION MAY BE UP NORTH WHERE SELF DESTRUCT SUNSHINE UNDER THE UPR LOW COLD POCKET SKIRTS THE NRN TIER. WITH MAIN SFC LOW REMAINING TO THE NORTH DO NOT EXPECT POST FRONTAL WINDS TO BE SIG TOMORROW...BUT WILL INCLUDE BREEZY FOR NRN SECTIONS AND OVER LOWER SUSQ WHERE POST FRONTAL TEMP GRADIENT SHOULD BE SUFFICIENT TO CAUSE NORTHWEST WINDS OF 10 TO 20 KTS. A WEAK FRNT/SHORTWAVE MOVES THOUGH EARLY MON MORN. THIS MAY BE ENOUGH TO BRING A MORNING SHOWER OR SPRINKLE TO NRN LOCATIONS...BUT WITH LIMITED MOISTURE BEHIND TODAYS FROPA CAN SEE THIS VANISHING FROM FUTURE FORECASTS. OTHERWISE MONDAY INTO MID WEEK WILL BE P TO M SUNNY WITH LITTLE CHANCE OF PCPN AS HPC MDM RANGE GUIDANCE AND MODELS BRING AREA OF HIGH PRESSURE OVER THE REGION. THAT IS ALL. .CTP...SEVERE THUNDERSTORM WATCH TIL 8PM EDT FOR ZONES 64-65-66. GARTNER
In the hours before
Special weather statement, May 13, 2:40 PM EDT, 3 hours 27 minutes before
PAZ064>066-140000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 240 PM EDT SAT MAY 13 2000 A SEVERE THUNDERSTORM WATCH IS IN EFFECT THIS AFTERNOON AND EVENING UNTIL 8 PM FOR THE FOLLOWING COUNTIES IN CENTRAL PENNSYLVANIA... ADAMS...LANCASTER...AND YORK. 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/RXR
Special weather statement, May 13, 4:50 PM EDT, 1 hour 17 minutes before
PAZ012-018-019-025>028-034>037-041-042-045-046-049>053-056>059- 063>066-140200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 450 PM EDT SAT MAY 13 2000 A SEVERE THUNDERSTORM WATCH IS IN EFFECT THIS AFTERNOON AND EVENING UNTIL 10 PM FOR THE FOLLOWING COUNTIES IN CENTRAL PENNSYLVANIA... ADAMS...BLAIR...BEDFORD...CENTRE...CLINTON...COLUMBIA...CUMBERLAND... DAUPHIN...FRANKLIN...FULTON...HUNTINGDON...JUNIATA...LANCASTER... LEBANON...LYCOMING...MIFFLIN...MONTOUR...NORTHUMBERLAND...PERRY... SCHUYLKILL...SNYDER...SULLIVAN...TIOGA...UNION...AND YORK. 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/RXR
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 13, 8:25 AM EDT | Severe Thunderstorm Warning | CTP | Somerset | 65 min |
| May 13, 4:17 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 43 min |
| May 13, 5:08 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 67 min |
| May 13, 5:20 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 55 min |
| May 13, 5:22 PM EDT | Severe Thunderstorm Warning | CTP | Snyder | 68 min |
| May 13, 5:28 PM EDT | Severe Thunderstorm Warning | CTP | Northumberland, Union | 62 min |
| May 13, 5:36 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin, Perry | 54 min |
| May 13, 6:20 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 55 min |
| May 13, 6:42 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon | 63 min |
| May 13, 6:49 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 56 min |
| May 13, 7:13 PM EDT | Tornado Warning | CTP | York | 32 min |
| May 13, 7:25 PM EDT | Tornado Warning | CTP | Lancaster | 35 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; radar from the NEXRAD Level II archive.