Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 72, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at May 24, 2000, 2:06 PM EDT for York County, Pennsylvania. It was in force for 39 min. 2 reports 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 24, 2000, 2:06 PM EDT (18:06 UTC)
- Expired
- May 24, 2000, 2:45 PM EDT
- In force
- 39 min
- Issued by
- NWS State College, PA
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County York County, PA
The radar
The Sterling radar (KLWX), 128 km from the middle of the area, began a volume at 18:09 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 24, 2:20 PM EDT | Hail 1.75 | Bermudian, PA | Golf ball sized hail at Lake Meade. |
| May 24, 2:40 PM EDT | Hail 1 | Thomasville, PA | Quarter sized hail. |
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
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 6.1 hours before the alert went out and 92 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
- 89 J/kg
- Mixed-layer CIN
- -178 J/kg
- Mixed-layer LCL
- 816 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
624
WUUS51 KCTP 241807
SVRCTP
PAC133-241845-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
206 PM EDT WED MAY 24 2000
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
YORK COUNTY.
* UNTIL 245 PM EDT.
* AT 205 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 10 MILES WEST OF WEIGELSTOWN...OR ABOUT 5 MILES
SOUTH OF FRANKLINTOWN...MOVING EAST AT 30 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
DOVER AT 220 PM EDT.
SHILOH...SPRING GROVE AT 225 PM EDT.
EMIGSVILLE...MANCHESTER AT 230 PM EDT.
EAST YORK...GRANTLEY AT 235 PM EDT.
WINTERSTOWN AT 250 PM EDT.
THIS IS A DANGEROUS STORM. STAY INDOORS AWAY FROM WINDOWS.
.END/ LAMBERT/ LA CORTE
LAT...LON 4012 7707 3995 7717 3981 7662 4004 7659
4015 7686What 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 24, 9:30 AM EDT, 4 hours 36 minutes earlier.
Area forecast discussion, May 24, 9:30 AM EDT, 4 hours 36 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 930 AM EDT WED MAY 24 2000 WHAT A DIFFERENCE A DAY MAKES. (WE/VE BEEN DOWNGRADED TO SLGT RISK OF SVR BY SPC) BUT...THINGS ARE STILL RIPE FOR SVR DEVELOPMENT... JUST NOT AS WIDESPREAD AN EVENT IS LIKELY AS THOUGHT B4. THE RAIN LAST NITE HAS BROUGHT US ABUNDANT LLVL MSTR AND THE SS OUT THE WINDOW IS HELPING TO RAPIDLY WARM US UP. WEAK TO NON-EXISTENT LLVL JET WL NOT HELP W/CONTINUED STORM INFLOW POSSIBILITIES. ALSO...SFC ANALYSIS SHOWS VERY LTL IN THE WAY OF EXISTING BOUNDARIES. WL HV TO WAIT FOR A TRIGGER TO POP THINGS OFF. REAL FRONT (WHICH IS ALSO VERY WEAK) SEEMS TO LIE FROM CHI TO STL AT 12Z PER VISB PICS AND HAND ANALYSIS. 06Z MESOETA SOUNDINGS SEEM TO UNDERESTIMATE THE LLVL MSTR AVBL TODAY AND THEREFORE NOT QUITE AS IMPRESSIVE AS XPCTD. ALSO THE MDLS KEEP SFC WINDS ARE MORE W/SW FOR MOST OF THE DAY UNTIL REPONSE TO DIGGING S/W CROSSING TO OUR NORTH THIS EVENING BRINGS WINDS AROUND TO A MORE SRLY COMP ACRS ERN ZNS JUST AFT SUNDOWN. OVERALL...ACTION WL BE LATER IN THE DAY INTO THE EVE AND ON TOWARD MIDNIGHT. HELLACIOUSLY STRONG NWRLY FLOW JET (120+ KTS) AND OVERALL INSTABILITY WITH DRY AIR AT MID LVLS KEEP US PRIMED AND...MAYBE...WAITING. WL CONTINUE THE NEAR-SEVERE WORDS IN THE FCST...AND ADD TO THE ERN ZNS FOR THE LATE EVENING (ERLY TONIGHT PD). .CTP...NONE. DANGELO
In the hours before
Special weather statement, May 24, 11:00 AM EDT, 3 hours 6 minutes before
PAZ004>006-010>012-017>019-024>028-037-041-042-045-046-049>053- 056>059-063>066-242200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 1100 AM EDT WED MAY 24 2000 ...A SLIGHT RISK OF SEVERE THUNDERSTORMS EXISTS OVER CENTRAL PENNSYLVANIA THIS AFTERNOON AND EVENING... A COLD FRONT OVER THE MIDWEST WILL BE CROSSING THE STATE LATE THIS EVENING. AHEAD OF THE COLD FRONT...WARM AND RATHER HUMID AIR WILL COMBINE WITH FAST WINDS ALOFT TO MAKE FAVORABLE CONDITIONS FOR THUNDERSTORMS TO FORM. SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED OVER MOST OF THE REGION. SOME OF THE STORMS MAY BECOME SEVERE...ESPECIALLY LATE THIS AFTERNOON AND DURING THE EVENING...CAUSING DAMAGING WINDS AND LARGE HAIL. STAY TUNED TO YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR LATER UPDATES AND POSSIBLE SEVERE WEATHER WATCHES. SKYWARN SPOTTER NETWORKS MAY NEED TO BE ACTIVATED LATER TODAY. .END/DANGELO
Special weather statement, May 24, 1:10 PM EDT, 56 minutes before
PAZ004>006-010>012-017>019-024>028-037-041-042-045-046-049>053- 056>059-063>066-242200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 110 PM EDT WED MAY 24 2000 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 7 PM FOR THE FOLLOWING COUNTIES IN CENTRAL PENNSYLVANIA... CAMERON CENTRE CLINTON COLUMBIA LYCOMING MONTOUR NORTHUMBERLAND POTTER SULLIVAN TIOGA UNION A COLD FRONT WILL APPROACH THE AREA LATER TODAY. THIS WILL CAUSE SHOWERS AND THUNDERSTORMS TO INCREASE OVER THE REGION. SOME OF THE THUNDERSTORMS COULD BECOME LOCALLY SEVERE...ACCOMPANIED BY LARGE HAIL AND DAMAGING WIND GUSTS. STAY TUNED TO YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR LATER UPDATES AND POSSIBLE WARNINGS. .END/LA CORTE
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 2:58 AM EDT | Severe Thunderstorm Warning | CTP | Warren | 47 min |
| May 24, 12:45 PM EDT | Severe Thunderstorm Warning | CTP | Elk | 30 min |
| May 24, 1:29 PM EDT | Severe Thunderstorm Warning | CTP | Elk | 31 min |
| May 24, 1:46 PM EDT | Severe Thunderstorm Warning | CTP | Cameron | 29 min |
| May 24, 2:07 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Franklin | 38 min |
| May 24, 2:12 PM EDT | Severe Thunderstorm Warning | CTP | Columbia | 33 min |
| May 24, 2:16 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 59 min |
| May 24, 2:33 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 57 min |
| May 24, 2:48 PM EDT | Severe Thunderstorm Warning | CTP | Adams | 57 min |
| May 24, 2:53 PM EDT | Severe Thunderstorm Warning | CTP | York | 67 min |
| May 24, 3:10 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 20 min |
| May 24, 3:16 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 59 min |
| May 24, 3:21 PM EDT | Severe Thunderstorm Warning | CTP | Union | 39 min |
| May 24, 4:15 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 45 min |
| May 24, 4:25 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clearfield | 50 min |
| May 24, 4:32 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 43 min |
| May 24, 4:40 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 35 min |
| May 24, 5:15 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 60 min |
| May 24, 5:22 PM EDT | Severe Thunderstorm Warning | CTP | Mifflin | 53 min |
| May 24, 5:43 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Snyder | 47 min |
| May 24, 6:07 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Northumberland | 53 min |
| May 24, 6:28 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon, Schuylkill | 47 min |
| May 24, 7:15 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 15 min |
| May 24, 7:44 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 46 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.