Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2005
Severe Thunderstorm Warning 112, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jul 27, 2005, 2:52 PM EDT for Snyder County, Pennsylvania. It was in force for 39 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 27, 2005, 2:52 PM EDT (18:52 UTC)
- Expired
- Jul 27, 2005, 3:31 PM EDT
- In force
- 39 min
- Issued by
- NWS State College, PA
- Area
- Counties, with a storm outline in the text
County Snyder County, PA
The radar
The State College radar (KCCX), 78 km from the middle of the area, began a volume at 18:54 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 |
|---|---|---|---|
| Jul 27, 3:00 PM EDT | TSTM WND DMG | Port Treverton, PA | 911 CENTER REPORTED TREES DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 8 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 27, 1:50 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 6.9 hours before the alert went out and 164 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
- 1105 J/kg
- Mixed-layer CIN
- -73 J/kg
- Mixed-layer LCL
- 1506 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KCTP 271852 SVRCTP PAC109-271945- /O.NEW.KCTP.SV.W.0112.050727T1852Z-050727T1945Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 252 PM EDT WED JUL 27 2005 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SNYDER COUNTY IN CENTRAL PENNSYLVANIA * UNTIL 345 PM EDT * AT 249 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 6 MILES SOUTH OF BEAVER SPRINGS...OR 19 MILES SOUTH OF MIFFLINBURG...AND MOVING EAST AT 50 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... MEISERVILLE AND FREMONT AROUND 300 PM EDT... PORT TREVERTON AROUND 305 PM EDT... SELINSGROVE AND HUMMELS WHARF AROUND 310 PM EDT... SEVERE THUNDERSTORMS CONTAIN DAMAGING WINDS 58 MPH OR STRONGER...OR HAIL THREE QUARTERS OF AN INCH OR LARGER. SEEK SHELTER INSIDE A STURDY LOCATION NOW. PLEASE REPORT HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1 8 7 7 6 3 3 6 7 7 2. LAT...LON 4074 7737 4066 7708 4065 7689 4083 7684 $$ FORECASTER: PAJ
1 follow-up statement
000 WWUS51 KCTP 271931 SVSCTP SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 331 PM EDT WED JUL 27 2005 PAC109-271941- /O.CAN.KCTP.SV.W.0112.000000T0000Z-050727T1945Z/ SNYDER- 331 PM EDT WED JUL 27 2005 ...THE SEVERE THUNDERSTORM WARNING FOR SNYDER COUNTY IS CANCELLED... THE THUNDERSTORM THAT PROMPTED THE WARNING HAS MOVED OUT OF THE AREA. THEREFORE THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE. PLEASE REPORT HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1 8 7 7 6 3 3 6 7 7 2. LAT...LON 4074 7737 4066 7708 4065 7689 4083 7684 $$ FORECASTER: JPV
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 Jul 27, 2:32 PM EDT, 20 minutes earlier.
Area forecast discussion, Jul 27, 2:32 PM EDT, 20 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 232 PM EDT WED JUL 27 2005 .SHORT TERM (REST OF TONIGHT)... UPDATED ZONES SENT TO INCLUDE SEVERE THUNDERSTORM WATCH #693 UNTIL 02Z. && .PREVIOUS DISCUSSION... (ISSUED 1155 AM EDT WED JUL 27 2005) SHORT TERM (REST OF TODAY THROUGH TONIGHT)... COLD FRONT ENTERING NW PA ATTM WITH AREA OF SHOWERS MAINLY BEHIND THE FRONT. INDIVIDUAL SHOWERS AND TSTMS ARE STARTING TO FORM IN THE WARM AND HUMID AMS AHEAD OF THE FRONT. EXPECT TSTM DEVELOPMENT TO CONTINUE...OVERSPREADING ENTIRE CWA BY LATE AFTN. CURRENT FCST LOOKS ON TARGET. ONLY SIG CHANGE WAS TO INCREASE TEMPS A FEW DEGREES FOR THIS AFTN...ESP OVER SERN CWA. TEMPS ACROSS THE NW HAVE ALREADY REACHED THEIR MAX. NO CHANGES BEYOND FIRST PD. PREVIOUS DISCUSSION... (ISSUED 259 AM EDT WED JUL 27 2005) SHORT TERM (TODAY THROUGH TONIGHT)... MAIN FOCUS IN THE SHORT TERM REMAINS SLOW APPROACHING COLD FRONT FROM THE OHIO VALLEY AND ITS IMPACTS ACROSS CENTRAL PA. MAIN SHORTWAVE AND ASSOCIATED LLJ RESPONSIBLE FOR INITIATING AND ORGANIZING SQUALL LINE WHICH PRODUCED ALL THE WIND DAMAGE ACROSS THE NORTHERN TIER LAST EVENING HAS MOVED INTO UPSTATE NEW YORK AND NEW ENGLAND AT THIS TIME. MOST OF CENTRAL PA REMAINS RAIN FREE AT THIS TIME...BUT SHOWERS AND THUNDERSTORMS WITH LOCALLY HEAVY RAINFALL CONTINUE AT THIS HOUR THROUGHOUT OHIO NWD INTO ONTARIO INVOF SLOW MOVING COLD FRONT. MAIN UPPER TROF CONTS TO SLIDE EAST THROUGH THE UPPER MIDWEST...PUSHING COLD FRONT THROUGH PA AND PRODUCING ANOTHER ROUND OF ORGANIZED CONVECTION TODAY ACROSS CENTRAL PA. WITH SHEAR PROFILES REMAINING MARGINAL AND LESS AVAILABLE CAPE AS PER BUFKIT (NAM/GFS) FORECAST SOUNDINGS... EXPECTING HEAVY RAINS TO BE THE MAIN THREAT FROM SLOW MOVING AND POTENTIALLY TRAINING CELLS. STEEPEST LAPSE RATES WILL BE PRESENT ACROSS MY FAR SOUTHEAST COUNTIES...WHERE 20C+ 850 MB THERMAL RIDGE LINGERS. THUS...SPC HAS THIS AREA IN A SLIGHT RISK FOR TODAY...EXTENDING NORTHWARD INTO EAST CENTRAL PA WHERE FAVORABLE RIGHT JET ENTRANCE REGION PROPOGATES THIS AFTERNOON AND EVENING. FINALLY SOME RELIEF IN STORE BY LATE TONIGHT AND THURSDAY AS ZONAL FLOW RETURNS TO USHER IN MUCH NEEDED RELIEF FROM THE OPPRESSIVELY HIGH DEWPOINTS/HUMIDITY. LONG TERM (THURSDAY THROUGH TUESDAY)... WEAK SFC HIGH PRESSURE EXTENDING FROM SOUTHERN QUEBEC THROUGH THE EASTERN GLAKS AND NORTHERN OHIO VALLEY WILL SUPPRESS DEEPER LAYER MOISTURE SOUTH OF THE MASON DIXON LINE AND EAST OF THE ATLANTIC COAST ON THURSDAY. LINGERING INVERTED SFC PRESSURE TROF EXTENDING NWD FROM THE CAROLINAS TO SOUTHERN NEW JERSEY WILL CONT TO PROVIDE A FOCUSING MECHANISM FOR CONVECTION OVER SOUTHERN AND ESPECIALLY SOUTHEAST SECTIONS...SO WL MAINTAIN CHC POPS HERE WITH GENERALLY IMPROVING CONDS NORTH OF THE TURNPIKE. BOUNDARY LINGERS ON FRIDAY WITH CONVECTION AGAIN POSSIBLE ACROSS THE SOUTH...MAINLY SOUTH OF THE TURNPIKE. THIS BEFORE A STRONGER UPPER TROF NOW PROGGED TO DROP ACROSS THE NORTHERN GLAKS AND PROVIDE SECONDARY RELIEF AND A DRY UPCOMING WEEKEND FOR MOST. GFS ACTUALLY BRINGS SOME 40-DEGREE DEWPOINTS INTO NORTHWEST PA BY SATURDAY AS STRONGER SFC HIGH BUILDS SOUTHEASTWARD FROM THE OHIO VALLEY AND CENTRAL GLAKS. WELCOME NEWS FOR SURE. AVIATION... LOOKS LIKE MOST OF THE STRONGER CONVECTION WILL STAY NW OF THE CWA THIS AM. MAINLY VFR CONDITIONS THIS MORNING...BUT SOME AREAS OF MVFR/IFR CONDITIONS IN SHOWERS AND STORMS OVER THE NW MTNS...ALONG WITH A FEW POCKETS OF FOG ACROSS THE REGION. MUCH OF THE DAY WILL BE VFR...BUT MVFR/IFR CONDITIONS IN SHOWERS AND STORMS LATER TODAY...AS NEW STORMS FORM AHEAD OF THE COLD FRONT. SPC HAS EASTERN AREAS IN SLIGHT RISK. && .CTP WATCHES/WARNINGS/ADVISORIES... SEVERE THUNDERSTORM WATCH FOR PAZ027-028-034>036-049>053- 056>059-063>066 UNTIL 10 PM WEDNESDAY. && SHORT TERM...
Hazardous weather outlook, Jul 27, 4:43 AM EDT, 10 hours 9 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 443 AM EDT WED JUL 27 2005 PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066-272100- ADAMS PA-BEDFORD PA-BLAIR PA-CAMBRIA PA-CAMERON PA-CLEARFIELD PA- COLUMBIA PA-CUMBERLAND PA-DAUPHIN PA-ELK PA-FRANKLIN PA-FULTON PA- HUNTINGDON PA-JUNIATA PA-LANCASTER PA-LEBANON PA-MCKEAN PA- MIFFLIN PA-MONTOUR PA-NORTHERN CENTRE PA-NORTHERN CLINTON PA- NORTHERN LYCOMING PA-NORTHUMBERLAND PA-PERRY PA-POTTER PA- SCHUYLKILL PA-SNYDER PA-SOMERSET PA-SOUTHERN CENTRE PA- SOUTHERN CLINTON PA-SOUTHERN LYCOMING PA-SULLIVAN PA-TIOGA PA- UNION PA-WARREN PA-YORK PA- 443 AM EDT WED JUL 27 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...TODAY: SHOWERS AND THUNDERSTORMS WILL AFFECT ALL OF CENTRAL PENNSYLVANIA... AND SOME MAY PRODUCE HEAVY DOWNPOURS LEADING TO LOCAL MINOR FLOODING PROBLEMS. THERE IS THE POTENTIAL FOR SOME STORMS TO BECOME LOCALLY SEVERE FROM THE CENTRAL AND SOUTH CENTRAL MOUNTAINS EASTWARD TO THE MIDDLE AND LOWER SUSQUEHANNA RIVER VALLEY THIS AFTERNOON AND EVENING. THE GREATEST SEVERE WEATHER THREAT WILL BE STRONG AND POTENTIALLY DAMAGING WIND GUSTS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY: NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
In the hours before
Special weather statement, Jul 27, 1:22 PM EDT, 1 hour 30 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 122 PM EDT WED JUL 27 2005 PAZ025-271815- BLAIR- 122 PM EDT WED JUL 27 2005 ...STRONG THUNDERSTORMS WILL AFFECT BLAIR COUNTY THROUGH 220 PM... AT 118 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A CLUSTER OF STRONG THUNDERSTORMS 8 MILES NORTHEAST OF EBENSBURG...MOVING EAST AT 35 MPH. THE THUNDERSTORM WILL BE NEAR ALTOONA AROUND 140 PM...BELLWOOD...CANOE CREEK STATE PARK AROUND 145 PM...SINKING VALLEY...TIPTON AROUND 150 PM AND TYRONE AROUND 155 PM. WIND GUSTS TO 45 MPH ARE POSSIBLE WITH THIS STORM. WINDS OF THIS MAGNITUDE MAY BE CAPABLE OF DOWNING TREE LIMBS...AND PROPELLING LOOSE OUTDOOR OBJECTS. VERY HEAVY RAIN WILL FALL...AND WILL CAUSE WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS. ALSO...EXPECT INTENSE LIGHTNING FROM THIS STORM. DO NOT SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A THUNDERSTORM APPROACHES. FORECASTER: KL
Special weather statement, Jul 27, 1:55 PM EDT, 57 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 155 PM EDT WED JUL 27 2005 PAZ026-271845- HUNTINGDON- 155 PM EDT WED JUL 27 2005 ...A STRONG THUNDERSTORM WILL AFFECT HUNTINGDON COUNTY... AT 155 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 6 MILES NORTHWEST OF HUNTINGDON...MOVING EAST AT 35 MPH. THE THUNDERSTORM WILL BE NEAR MCALEVYS FORT AROUND 215 PM. WIND GUSTS TO 45 MPH ARE POSSIBLE WITH THIS STORM. WINDS OF THIS MAGNITUDE MAY BE CAPABLE OF DOWNING TREE LIMBS...AND PROPELLING LOOSE OUTDOOR OBJECTS. VERY HEAVY RAIN WILL FALL...AND WILL CAUSE WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS. ALSO...EXPECT INTENSE LIGHTNING FROM THIS STORM. DO NOT SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A THUNDERSTORM APPROACHES. FORECASTER: PAJ
Special weather statement, Jul 27, 2:13 PM EDT, 39 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 213 PM EDT WED JUL 27 2005 PAZ027-271915- MIFFLIN- 213 PM EDT WED JUL 27 2005 ...A STRONG THUNDERSTORM WILL AFFECT MIFFLIN COUNTY... AT 210 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 9 MILES WEST OF LEWISTOWN...MOVING EAST AT 40 MPH. THE THUNDERSTORM WILL BE NEAR REEDSVILLE AROUND 220 PM AND ALFARATA AROUND 230 PM. WIND GUSTS TO 45 MPH ARE POSSIBLE WITH THIS STORM. WINDS OF THIS MAGNITUDE MAY BE CAPABLE OF DOWNING TREE LIMBS...AND PROPELLING LOOSE OUTDOOR OBJECTS. VERY HEAVY RAIN WILL FALL...AND WILL CAUSE WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS. ALSO...EXPECT INTENSE LIGHTNING FROM THIS STORM. DO NOT SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A THUNDERSTORM APPROACHES. FORECASTER: PAJ
Special weather statement, Jul 27, 2:18 PM EDT, 34 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 218 PM EDT WED JUL 27 2005 PAZ049-271845- UNION- 218 PM EDT WED JUL 27 2005 ...A STRONG THUNDERSTORM WILL AFFECT UNION COUNTY... AT 214 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 2 MILES NORTHWEST OF MIFFLINBURG...MOVING EAST AT 35 MPH. THE THUNDERSTORM WILL BE NEAR LEWISBURG AROUND 230 PM. WIND GUSTS TO 45 MPH ARE POSSIBLE WITH THIS STORM. WINDS OF THIS MAGNITUDE MAY BE CAPABLE OF DOWNING TREE LIMBS...AND PROPELLING LOOSE OUTDOOR OBJECTS. VERY HEAVY RAIN WILL FALL...AND WILL CAUSE WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS. ALSO...EXPECT INTENSE LIGHTNING FROM THIS STORM. DO NOT SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A THUNDERSTORM APPROACHES. FORECASTER: PAJ
Special weather statement, Jul 27, 2:38 PM EDT, 14 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 238 PM EDT WED JUL 27 2005 PAZ027-028-050-271930- JUNIATA-MIFFLIN-SNYDER- 238 PM EDT WED JUL 27 2005 ...A STRONG THUNDERSTORM WILL AFFECT JUNIATA...MIFFLIN AND SNYDER COUNTIES... AT 236 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 9 MILES EAST OF LEWISTOWN...MOVING EAST AT 40 MPH. THE THUNDERSTORM WILL BE NEAR MCALISTERVILLE AROUND 245 PM... BEAVER SPRINGS...BEAVERTOWN AROUND 250 PM...RICHFIELD AROUND 255 PM AND MIDDLEBURG AROUND 300 PM. WIND GUSTS TO 45 MPH ARE POSSIBLE WITH THIS STORM. ALSO...EXPECT INTENSE LIGHTNING FROM THIS STORM. DO NOT SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A THUNDERSTORM APPROACHES. FORECASTER: JPV
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 8:17 PM EDT | Severe Thunderstorm Warning | CTP | Sullivan | 60 min |
| Jul 26, 8:24 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 66 min |
| Jul 26, 9:05 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour | 55 min |
| Jul 27, 2:35 PM EDT | Severe Thunderstorm Warning | CTP | Montour | 26 min |
| Jul 27, 2:47 PM EDT | Severe Thunderstorm Warning | CTP | Juniata | 28 min |
| Jul 27, 2:49 PM EDT | Severe Thunderstorm Warning | CTP | Columbia | 41 min |
| Jul 27, 3:08 PM EDT | Severe Thunderstorm Warning | CTP | Northumberland | 44 min |
| Jul 27, 3:19 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 56 min |
| Jul 27, 5:36 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 24 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2005Every severe thunderstorm warning in 2005
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.