Alert archive / Pennsylvania / Winter Storm Warnings in 2013
Winter Storm Warning 8, NWS State College, PA
NWS State College, PA issued this winter storm warning at Dec 13, 2013, 11:32 AM EST for 33 counties in Pennsylvania. It took effect at Dec 14, 2013, 5:00 AM EST. It was in force for 23 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Dec 13, 2013, 11:32 AM EST (16:32 UTC)
- In effect from
- Dec 14, 2013, 5:00 AM EST
- Expired
- Dec 15, 2013, 4:00 AM EST
- In force
- 23 hr
- Issued by
- NWS State College, PA
All 33 counties
Adams County, PA, Bedford County, PA, Blair County, PA, Cambria County, PA, Cameron County, PA, Centre County, PA, Clearfield County, PA, Clinton County, PA, Columbia County, PA, Cumberland County, PA, Dauphin County, PA, Elk County, PA, Franklin County, PA, Fulton County, PA, Huntingdon County, PA, Juniata County, PA, Lancaster County, PA, Lebanon County, PA, Lycoming County, PA, McKean County, PA, Mifflin County, PA, Montour County, PA, Northumberland County, PA, Perry County, PA, Potter County, PA, Schuylkill County, PA, Snyder County, PA, Somerset County, PA, Sullivan County, PA, Tioga County, PA, Union County, PA, Warren County, PA, York County, PA
The radar
The State College radar (KCCX), 43 km from the middle of the area, began a volume at 16:30 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.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 4.5 hours before the alert went out and 201 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
- 2029 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- 168 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS41 KCTP 131632 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 1132 AM EST FRI DEC 13 2013 ...HEAVY SNOW EXPECTED SATURDAY AFTERNOON AND SATURDAY NIGHT... .A SIGNIFICANT WINTER STORM WILL IMPACT CENTRAL PENNSYLVANIA THIS WEEKEND. SNOW ACCUMULATIONS BETWEEN 5 TO 8 INCHES ARE EXPECTED ACROSS A WIDE AREA OF CENTRAL PENNSYLVANIA. THE SNOW COULD MIX WITH OR CHANGE TO SLEET AND FREEZING RAIN ACROSS PORTIONS OF THE LOWER SUSQUEHANNA VALLEY SATURDAY NIGHT. PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046- 049>053-056>059-063>066-140400- /O.UPG.KCTP.WS.A.0010.131214T1000Z-131215T0600Z/ /O.NEW.KCTP.WS.W.0008.131214T1000Z-131215T0900Z/ WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD- NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN- JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING- SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR- NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON- CUMBERLAND-ADAMS-YORK-LANCASTER- INCLUDING THE CITIES OF...WARREN...BRADFORD...COUDERSPORT... ST. MARYS...RIDGWAY...EMPORIUM...RENOVO...DUBOIS...CLEARFIELD... PHILIPSBURG...STATE COLLEGE...JOHNSTOWN...ALTOONA...HUNTINGDON... MOUNT UNION...LEWISTOWN...MIFFLINTOWN...SOMERSET...BEDFORD... MCCONNELLSBURG...CHAMBERSBURG...MANSFIELD...WELLSBORO...LAPORTE... LOCK HAVEN...WILLIAMSPORT...LEWISBURG...SELINSGROVE...DANVILLE... SUNBURY...SHAMOKIN...BLOOMSBURG...BERWICK...NEWPORT... HARRISBURG...HERSHEY...POTTSVILLE...LEBANON...CARLISLE... GETTYSBURG...YORK...LANCASTER 1132 AM EST FRI DEC 13 2013 ...WINTER STORM WARNING IN EFFECT FROM 5 AM SATURDAY TO 4 AM EST SUNDAY... THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 5 AM SATURDAY TO 4 AM EST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * LOCATIONS...ALL OF CENTRAL PENNSYLVANIA AND THE SUSQUEHANNA VALLEY. * HAZARD TYPES...HEAVY SNOW...POSSIBLY CHANGING TO SLEET OR FREEZING RAIN SATURDAY NIGHT ACROSS THE LOWER SUSQUEHANNA VALLEY. * ACCUMULATIONS...5 TO 8 INCHES OF SNOW. * TIMING...LIGHT SNOW WILL BEGIN ACROSS THE REGION NEAR SUNRISE SATURDAY. SNOW FALL INTENSITIES WILL INCREASE SATURDAY AFTERNOON AND EVENING. * IMPACTS...WIDESPREAD HAZARDOUS TRAVEL DUE TO SNOW COVERED ROADS AND REDUCED VISIBILITY CAN BE EXPECTED. * WINDS...EAST 5 TO 10 MPH WITH GUSTS UP TO 20 MPH. * TEMPERATURES...IN THE 20S...TO NEAR 30 IN THE SOUTHEAST. * VISIBILITIES...ONE TO TWO MILES SATURDAY MORNING DECREASING TO UNDER ONE MILE SATURDAY AFTERNOON AND SATURDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... DANGEROUS WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. USE EXTREME CAUTION IF PLANNING TO TRAVEL. FOR THE LATEST WEATHER INFORMATION...GO TO WEATHER.GOV/CTP OR STAY TUNED TO NOAA WEATHER RADIO. REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE STATE COLLEGE BY SENDING AN EMAIL TO CTP.STORMREPORTS@NOAA.GOV... POSTING TO THE NWS STATE COLLEGE FACEBOOK PAGE...OR TWEET @NWSSTATECOLLEGE WITH THE HASHTAG #CTPWX. && $$ CR/WG/BL
6 follow-up statements
000 WWUS41 KCTP 140240 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 940 PM EST FRI DEC 13 2013 ...HEAVY SNOW EXPECTED SATURDAY AFTERNOON INTO SATURDAY EVENING... .A SIGNIFICANT EARLY WINTER STORM WILL IMPACT CENTRAL PENNSYLVANIA THIS WEEKEND. SNOW ACCUMULATIONS BETWEEN 5 TO 8 INCHES ARE EXPECTED ACROSS A WIDE AREA OF CENTRAL PENNSYLVANIA. THE SNOW COULD MIX WITH OR CHANGE TO SLEET AND FREEZING RAIN ACROSS PORTIONS OF THE LOWER SUSQUEHANNA VALLEY SATURDAY EVENING. PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046- 049>053-056>059-063>066-142045- /O.CON.KCTP.WS.W.0008.131214T1000Z-131215T0900Z/ WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD- NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN- JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING- SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR- NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON- CUMBERLAND-ADAMS-YORK-LANCASTER- INCLUDING THE CITIES OF...WARREN...BRADFORD...COUDERSPORT... ST. MARYS...RIDGWAY...EMPORIUM...RENOVO...DUBOIS...CLEARFIELD... PHILIPSBURG...STATE COLLEGE...JOHNSTOWN...ALTOONA...HUNTINGDON... MOUNT UNION...LEWISTOWN...MIFFLINTOWN...SOMERSET...BEDFORD... MCCONNELLSBURG...CHAMBERSBURG...MANSFIELD...WELLSBORO...LAPORTE... LOCK HAVEN...WILLIAMSPORT...LEWISBURG...SELINSGROVE...DANVILLE... SUNBURY...SHAMOKIN...BLOOMSBURG...BERWICK...NEWPORT... HARRISBURG...HERSHEY...POTTSVILLE...LEBANON...CARLISLE... GETTYSBURG...YORK...LANCASTER 940 PM EST FRI DEC 13 2013 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM SATURDAY TO 4 AM EST SUNDAY... * LOCATIONS...ALL OF CENTRAL PENNSYLVANIA AND THE SUSQUEHANNA VALLEY. * HAZARD TYPES...HEAVY SNOW...POSSIBLY CHANGING TO SLEET OR FREEZING RAIN SATURDAY EVENING ACROSS THE LOWER SUSQUEHANNA VALLEY. * ACCUMULATIONS...4 TO 8 INCHES OF SNOW...WITH LOCALLY HIGHER AMOUNTS OVER THE NORTHERN MOUNTAINS. SLIGHTLY LESSER AMOUNTS OF SNOW OVER THE SUSQUEHANNA VALLEY WHERE SOME FREEZING RAIN AND SLEET CAN BE EXPECTED. * TIMING...LIGHT SNOW WILL BEGIN ACROSS THE REGION NEAR SUNRISE SATURDAY. SNOW FALL INTENSITIES WILL INCREASE SATURDAY AFTERNOON WHERE SNOWFALL RATES COULD EXCEED 2 INCHES PER HOUR FOR A TIME. SNOW WILL TAPER OFF TO SCATTERED SNOW SHOWERS BY MIDNIGHT OVER MOST OF THE AREA. * IMPACTS...WIDESPREAD DANGEROUS TRAVEL DUE TO SNOW COVERED ROADS AND REDUCED VISIBILITY CAN BE EXPECTED. SNOWFALL RATES EXCEEDING 2 INCHES PER HOUR SATURDAY AFTERNOON COULD OVERWHELM ROAD CREW EFFORTS TO KEEP REGIONAL ROADS AND HIGHWAYS CLEAR. * VISIBILITIES...ONE TO TWO MILES SATURDAY MORNING DECREASING TO UNDER ONE MILE SATURDAY AFTERNOON AND SATURDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... DANGEROUS WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. USE EXTREME CAUTION IF PLANNING TO TRAVEL. FOR THE LATEST WEATHER INFORMATION...GO TO WEATHER.GOV/CTP OR STAY TUNED TO NOAA WEATHER RADIO. REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE STATE COLLEGE BY SENDING AN EMAIL TO CTP.STORMREPORTS@NOAA.GOV... POSTING TO THE NWS STATE COLLEGE FACEBOOK PAGE...OR TWEET @NWSSTATECOLLEGE WITH THE HASHTAG #CTPWX. && $$ LA CORTE
000 WWUS41 KCTP 140746 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 246 AM EST SAT DEC 14 2013 ...HEAVY SNOW EXPECTED TODAY AND EARLY TONIGHT... .A SIGNIFICANT WINTER STORM WILL IMPACT CENTRAL PENNSYLVANIA TODAY AND TONIGHT. SNOW ACCUMULATIONS BETWEEN 6 TO 8 INCHES ARE EXPECTED ACROSS A WIDE AREA OF CENTRAL PENNSYLVANIA. THE SNOW COULD MIX WITH OR CHANGE TO SLEET AND FREEZING RAIN ACROSS PORTIONS OF THE SUSQUEHANNA VALLEY SATURDAY EVENING. PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046- 049>053-056>059-063>066-142215- /O.CON.KCTP.WS.W.0008.131214T1000Z-131215T0900Z/ WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD- NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN- JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING- SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR- NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON- CUMBERLAND-ADAMS-YORK-LANCASTER- INCLUDING THE CITIES OF...WARREN...BRADFORD...COUDERSPORT... ST. MARYS...RIDGWAY...EMPORIUM...RENOVO...DUBOIS...CLEARFIELD... PHILIPSBURG...STATE COLLEGE...JOHNSTOWN...ALTOONA...HUNTINGDON... MOUNT UNION...LEWISTOWN...MIFFLINTOWN...SOMERSET...BEDFORD... MCCONNELLSBURG...CHAMBERSBURG...MANSFIELD...WELLSBORO...LAPORTE... LOCK HAVEN...WILLIAMSPORT...LEWISBURG...SELINSGROVE...DANVILLE... SUNBURY...SHAMOKIN...BLOOMSBURG...BERWICK...NEWPORT... HARRISBURG...HERSHEY...POTTSVILLE...LEBANON...CARLISLE... GETTYSBURG...YORK...LANCASTER 246 AM EST SAT DEC 14 2013 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY... * LOCATIONS...ALL OF CENTRAL PENNSYLVANIA. * HAZARD TYPES...HEAVY SNOW. SOME FREEZING RAIN IS EXPECTED ALONG THE MARYLAND BORDER AND INTO THE LOWER AND MIDDLE SUSQUEHANNA VALLEY LATER THIS EVENING. * ACCUMULATIONS...4 TO 8 INCHES OF SNOW. A THIN COATING OF ICE IS ALSO POSSIBLE LATE IN THE FAR SOUTH AND SOUTHEAST. * TIMING...LIGHT SNOW WILL DEVELOP THIS MORNING AND BECOME HEAVY BY EARLY AFTERNOON. SNOW FALL INTENSITIES WILL INCREASE TO WHERE SNOWFALL RATES COULD EXCEED 2 INCHES PER HOUR FOR A BRIEF TIME. THE PRECIPITATION WILL BE IN THE PROCESS OF CHANGING TO FREEZING RAIN ALONG THE MARYLAND BORDER AND IN THE SUSQUEHANNA RIVER VALLEY AS THE PRECIPITATION ENDS EARLY TONIGHT. ELSEWHERE...THE SNOW WILL TAPER OFF TO SCATTERED SNOW SHOWERS BY MIDNIGHT OVER MOST OF THE AREA. * IMPACTS...WIDESPREAD DANGEROUS TRAVEL DUE TO SNOW COVERED ROADS AND REDUCED VISIBILITY CAN BE EXPECTED. SNOWFALL RATES EXCEEDING 2 INCHES PER HOUR SATURDAY AFTERNOON COULD OVERWHELM ROAD CREW EFFORTS TO KEEP REGIONAL ROADS AND HIGHWAYS CLEAR. * VISIBILITIES...SNOW WILL REDUCE THE VISIBILITY TO UNDER ONE QUARTER OF A MILE AT TIMES THIS AFTERNOON AND EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... DANGEROUS WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. USE EXTREME CAUTION IF PLANNING TO TRAVEL. FOR THE LATEST WEATHER INFORMATION...GO TO WEATHER.GOV/CTP OR STAY TUNED TO NOAA WEATHER RADIO. REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE STATE COLLEGE BY SENDING AN EMAIL TO CTP.STORMREPORTS@NOAA.GOV... POSTING TO THE NWS STATE COLLEGE FACEBOOK PAGE...OR TWEET @NWSSTATECOLLEGE WITH THE HASHTAG #CTPWX. && $$ DANGELO
000 WWUS41 KCTP 141705 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 1205 PM EST SAT DEC 14 2013 ...SNOW EXPECTED TO INCREASE IN INTENSITY AND FALL HEAVY AT TIMES THIS AFTERNOON INTO EARLY TONIGHT... .A SIGNIFICANT WINTER STORM WILL CONTINUE TO IMPACT CENTRAL PENNSYLVANIA THIS AFTERNOON AND TONIGHT. SNOW ACCUMULATIONS BETWEEN 6 TO 8 INCHES ARE EXPECTED ACROSS A WIDE AREA OF CENTRAL PENNSYLVANIA...WITH LOCALLY HIGHER AMOUNTS POSSIBLE. THE SNOW COULD MIX WITH OR CHANGE TO SLEET AND FREEZING RAIN ACROSS PORTIONS OF THE SUSQUEHANNA VALLEY AND LAUREL HIGHLANDS THIS EVENING...TRIMMING THE SNOWFALL. PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046- 049>053-056>059-063>066-150500- /O.CON.KCTP.WS.W.0008.000000T0000Z-131215T0900Z/ WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD- NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN- JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING- SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR- NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON- CUMBERLAND-ADAMS-YORK-LANCASTER- INCLUDING THE CITIES OF...WARREN...BRADFORD...COUDERSPORT... ST. MARYS...RIDGWAY...EMPORIUM...RENOVO...DUBOIS...CLEARFIELD... PHILIPSBURG...STATE COLLEGE...JOHNSTOWN...ALTOONA...HUNTINGDON... MOUNT UNION...LEWISTOWN...MIFFLINTOWN...SOMERSET...BEDFORD... MCCONNELLSBURG...CHAMBERSBURG...MANSFIELD...WELLSBORO...LAPORTE... LOCK HAVEN...WILLIAMSPORT...LEWISBURG...SELINSGROVE...DANVILLE... SUNBURY...SHAMOKIN...BLOOMSBURG...BERWICK...NEWPORT... HARRISBURG...HERSHEY...POTTSVILLE...LEBANON...CARLISLE... GETTYSBURG...YORK...LANCASTER 1205 PM EST SAT DEC 14 2013 ...A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY... * LOCATIONS...ALL OF CENTRAL PENNSYLVANIA. * HAZARD TYPES...HEAVY SNOW. SOME FREEZING RAIN IS EXPECTED NEAR THE MARYLAND BORDER AND INTO THE LOWER AND MIDDLE SUSQUEHANNA VALLEY LATER THIS EVENING. * ACCUMULATIONS...6 TO 8 INCHES OF SNOW IN MOST LOCATIONS...WITH LOCALLY HIGHER AMOUNTS POSSIBLE ACROSS THE CENTRAL AND NORTHERN MOUNTAINS. A THIN COATING OF ICE IS POSSIBLE LATE IN THE FAR SOUTH AND SOUTHEAST...WHERE SNOWFALL TOTALS WILL BE A FEW INCHES LESS DUE TO A MIX WITH OR CHANGE TO SLEET OR FREEZING RAIN THIS EVENING. * TIMING...SNOW WILL BECOME HEAVIER THIS AFTERNOON. THE SNOWFALL INTENSITY WILL INCREASE TO WHERE THE SNOWFALL RATE COULD BE UP TO 2 INCHES PER HOUR AT TIMES LATE THIS AFTERNOON INTO EARLY TONIGHT. THE PRECIPITATION WILL BE IN THE PROCESS OF CHANGING TO FREEZING RAIN ALONG THE MARYLAND BORDER AND IN THE SUSQUEHANNA RIVER VALLEY AS THE PRECIPITATION BECOMES LIGHTER AND MORE INTERMITTENT EARLY TONIGHT. ELSEWHERE...THE SNOW WILL TAPER OFF TO PERIODS OF LIGHT SNOW OR SNOW SHOWERS BY MIDNIGHT. * IMPACTS...WIDESPREAD DANGEROUS TRAVEL DUE TO SNOW COVERED ROADS AND REDUCED VISIBILITY CAN BE EXPECTED. SNOWFALL RATES UP TO 2 INCHES PER HOUR THIS AFTERNOON AND EVENING COULD OVERWHELM ROAD CREW EFFORTS TO KEEP REGIONAL ROADS AND HIGHWAYS CLEAR. * VISIBILITIES...SNOW WILL REDUCE THE VISIBILITY TO UNDER ONE QUARTER OF A MILE AT TIMES THIS AFTERNOON AND EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... DANGEROUS WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. USE EXTREME CAUTION IF PLANNING TO TRAVEL. FOR THE LATEST WEATHER INFORMATION...GO TO WEATHER.GOV/CTP OR STAY TUNED TO NOAA WEATHER RADIO. REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE STATE COLLEGE BY SENDING AN EMAIL TO CTP.STORMREPORTS@NOAA.GOV... POSTING TO THE NWS STATE COLLEGE FACEBOOK PAGE...OR TWEET @NWSSTATECOLLEGE WITH THE HASHTAG #CTPWX. && $$ LAMBERT
000 WWUS41 KCTP 142259 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 559 PM EST SAT DEC 14 2013 PAZ004>006-010>012-037-041-042-045-046-150900- /O.CON.KCTP.WS.W.0008.000000T0000Z-131215T0900Z/ WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-TIOGA- NORTHERN LYCOMING-SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING- INCLUDING THE CITIES OF...WARREN...BRADFORD...COUDERSPORT... ST. MARYS...RIDGWAY...EMPORIUM...RENOVO...MANSFIELD...WELLSBORO... LAPORTE...LOCK HAVEN...WILLIAMSPORT 559 PM EST SAT DEC 14 2013 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY... * LOCATIONS...NORTH-CENTRAL MOUNTAINS. * HAZARD TYPES...HEAVY SNOW. * ACCUMULATIONS...6 TO 10 INCHES OF SNOW. * TIMING...MODERATE TO HEAVY SNOW WITH SNOWFALL RATES OF 1 TO LOCALLY 2 INCHES PER HOUR WILL CONTINUE THIS EVENING. THE SNOW WILL START TO TAPER OFF AFTER MIDNIGHT. * IMPACTS...WIDESPREAD DANGEROUS TRAVEL DUE TO SNOW COVERED ROADS AND REDUCED VISIBILITY. INTENSE SNOWFALL RATES COULD OVERWHELM ROAD CREW EFFORTS TO KEEP REGIONAL ROADS AND HIGHWAYS CLEAR. * VISIBILITIES...HEAVY SNOW WILL REDUCE THE VISIBILITY BELOW ONE QUARTER OF A MILE AT TIMES THROUGH THIS EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... DANGEROUS WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. USE EXTREME CAUTION IF PLANNING TO TRAVEL. FOR THE LATEST WEATHER INFORMATION...GO TO WEATHER.GOV/CTP OR STAY TUNED TO NOAA WEATHER RADIO. REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE STATE COLLEGE BY SENDING AN EMAIL TO CTP.STORMREPORTS@NOAA.GOV... POSTING TO THE NWS STATE COLLEGE FACEBOOK PAGE...OR TWEET @NWSSTATECOLLEGE WITH THE HASHTAG #CTPWX. && $$ PAZ017>019-024>028-033>036-049>053-056>059-063-150900- /O.CON.KCTP.WS.W.0008.000000T0000Z-131215T0900Z/ CLEARFIELD-NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR- HUNTINGDON-MIFFLIN-JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-UNION- SNYDER-MONTOUR-NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL- LEBANON-CUMBERLAND- INCLUDING THE CITIES OF...DUBOIS...CLEARFIELD...PHILIPSBURG... STATE COLLEGE...JOHNSTOWN...ALTOONA...HUNTINGDON...MOUNT UNION... LEWISTOWN...MIFFLINTOWN...SOMERSET...BEDFORD...MCCONNELLSBURG... CHAMBERSBURG...LEWISBURG...SELINSGROVE...DANVILLE...SUNBURY... SHAMOKIN...BLOOMSBURG...BERWICK...NEWPORT...HARRISBURG... HERSHEY...POTTSVILLE...LEBANON...CARLISLE 559 PM EST SAT DEC 14 2013 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY... * LOCATIONS...LAUREL HIGHLANDS...CENTRAL MOUNTAINS AND MIDDLE SUSQUEHANNA VALLEY. * HAZARD TYPES...HEAVY SNOW...CHANGING TO A WINTRY MIX OF SNOW...SLEET AND FREEZING RAIN. * ACCUMULATIONS...4 TO 8 INCHES OF SNOW. A THIN COATING OF ICE IS POSSIBLE LATE TONIGHT. * TIMING...MODERATE TO HEAVY SNOW WITH SNOWFALL RATES OF 1 TO LOCALLY 2 INCHES PER HOUR WILL CONTINUE THIS EVENING. A TRANSITION TO A WINTRY MIX IS LIKELY ALONG THE TURNPIKE AND NEAR I-81. THE WINTRY PRECIPITATION WILL START TO TAPER OFF AFTER MIDNIGHT. * IMPACTS...WIDESPREAD DANGEROUS TRAVEL DUE TO SNOW COVERED ROADS AND REDUCED VISIBILITY. INTENSE SNOWFALL RATES COULD OVERWHELM ROAD CREW EFFORTS TO KEEP REGIONAL ROADS AND HIGHWAYS CLEAR. * VISIBILITIES...HEAVY SNOW WILL REDUCE THE VISIBILITY BELOW ONE QUARTER OF A MILE THROUGH THIS EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... DANGEROUS WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. USE EXTREME CAUTION IF PLANNING TO TRAVEL. FOR THE LATEST WEATHER INFORMATION...GO TO WEATHER.GOV/CTP OR STAY TUNED TO NOAA WEATHER RADIO. REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE STATE COLLEGE BY SENDING AN EMAIL TO CTP.STORMREPORTS@NOAA.GOV... POSTING TO THE NWS STATE COLLEGE FACEBOOK PAGE...OR TWEET @NWSSTATECOLLEGE WITH THE HASHTAG #CTPWX. && $$ PAZ064>066-150900- /O.CON.KCTP.WS.W.0008.000000T0000Z-131215T0900Z/ ADAMS-YORK-LANCASTER- INCLUDING THE CITIES OF...GETTYSBURG...YORK...LANCASTER 559 PM EST SAT DEC 14 2013 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY... * LOCATIONS...LOWER SUSQUEHANNA VALLEY. * HAZARD TYPES...HEAVY SNOW...CHANGING TO A WINTRY MIX OF SLEET AND FREEZING RAIN. * ACCUMULATIONS...3 TO 6 INCHES OF SNOW. A THIN COATING OF ICE IS POSSIBLE LATE TONIGHT. * TIMING...MODERATE TO HEAVY SNOW WITH SNOWFALL RATES OF 1 TO LOCALLY 2 INCHES PER HOUR WILL CONTINUE THIS EVENING. A TRANSITION TO SLEET AND FREEZING RAIN IS EXPECTED SOUTHEAST OF I-81. THE WINTRY PRECIPITATION WILL TAPER OFF AROUND MIDNIGHT. * IMPACTS...WIDESPREAD DANGEROUS TRAVEL DUE TO SNOW COVERED ROADS AND REDUCED VISIBILITY. INTENSE SNOWFALL RATES COULD OVERWHELM ROAD CREW EFFORTS TO KEEP REGIONAL ROADS AND HIGHWAYS CLEAR. * VISIBILITIES...HEAVY SNOW WILL REDUCE THE VISIBILITY TO BELOW ONE QUARTER OF A MILE AT TIMES THROUGH THE EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... DANGEROUS WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. USE EXTREME CAUTION IF PLANNING TO TRAVEL. FOR THE LATEST WEATHER INFORMATION...GO TO WEATHER.GOV/CTP OR STAY TUNED TO NOAA WEATHER RADIO. REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE STATE COLLEGE BY SENDING AN EMAIL TO CTP.STORMREPORTS@NOAA.GOV... POSTING TO THE NWS STATE COLLEGE FACEBOOK PAGE...OR TWEET @NWSSTATECOLLEGE WITH THE HASHTAG #CTPWX. && $$ MS/PJ/EC
000 WWUS41 KCTP 150157 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 857 PM EST SAT DEC 14 2013 PAZ004>006-010>012-037-041-042-045-046-150900- /O.CON.KCTP.WS.W.0008.000000T0000Z-131215T0900Z/ WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-TIOGA- NORTHERN LYCOMING-SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING- INCLUDING THE CITIES OF...WARREN...BRADFORD...COUDERSPORT... ST. MARYS...RIDGWAY...EMPORIUM...RENOVO...MANSFIELD...WELLSBORO... LAPORTE...LOCK HAVEN...WILLIAMSPORT 857 PM EST SAT DEC 14 2013 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY... * LOCATIONS...NORTH-CENTRAL MOUNTAINS. * HAZARD TYPES...HEAVY SNOW. * ACCUMULATIONS...STORM TOTALS OF 6 TO 10 INCHES OF SNOW. * TIMING...SNOW IS EXPECTED TO END IN MOST AREAS AFTER MIDNIGHT. * IMPACTS...DANGEROUS TRAVEL DUE TO SNOW COVERED ROADS. UNNECESSARY TRAVEL IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... DANGEROUS WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. USE EXTREME CAUTION IF PLANNING TO TRAVEL. FOR THE LATEST WEATHER INFORMATION...GO TO WEATHER.GOV/CTP OR STAY TUNED TO NOAA WEATHER RADIO. REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE STATE COLLEGE BY SENDING AN EMAIL TO CTP.STORMREPORTS@NOAA.GOV... POSTING TO THE NWS STATE COLLEGE FACEBOOK PAGE...OR TWEET @NWSSTATECOLLEGE WITH THE HASHTAG #CTPWX. && $$ PAZ017>019-024>028-033>036-049>053-056>059-063-150900- /O.CON.KCTP.WS.W.0008.000000T0000Z-131215T0900Z/ CLEARFIELD-NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR- HUNTINGDON-MIFFLIN-JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-UNION- SNYDER-MONTOUR-NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL- LEBANON-CUMBERLAND- INCLUDING THE CITIES OF...DUBOIS...CLEARFIELD...PHILIPSBURG... STATE COLLEGE...JOHNSTOWN...ALTOONA...HUNTINGDON...MOUNT UNION... LEWISTOWN...MIFFLINTOWN...SOMERSET...BEDFORD...MCCONNELLSBURG... CHAMBERSBURG...LEWISBURG...SELINSGROVE...DANVILLE...SUNBURY... SHAMOKIN...BLOOMSBURG...BERWICK...NEWPORT...HARRISBURG... HERSHEY...POTTSVILLE...LEBANON...CARLISLE 857 PM EST SAT DEC 14 2013 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY... * LOCATIONS...LAUREL HIGHLANDS...SOUTH-CENTRAL MOUNTAINS AND MIDDLE SUSQUEHANNA VALLEY. * HAZARD TYPES...WINTRY MIX OF SNOW...SLEET AND FREEZING RAIN. * SNOW ACCUMULATIONS...STORM TOTALS OF 4 TO 8 INCHES. * ICE ACCUMULATIONS...UP TO ONE-TENTH OF AN INCH. * TIMING...THE WINTRY MIX IS EXPECTED TO END AFTER MIDNIGHT. SOME PATCHY FREEZING DRIZZLE MAY LINGER INTO THE EARLY MORNING HOURS SUNDAY. * IMPACTS...WIDESPREAD DANGEROUS TRAVEL DUE TO SNOW COVERED AND ICY ROADS. UNNECESSARY TRAVEL IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... DANGEROUS WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. USE EXTREME CAUTION IF PLANNING TO TRAVEL. FOR THE LATEST WEATHER INFORMATION...GO TO WEATHER.GOV/CTP OR STAY TUNED TO NOAA WEATHER RADIO. REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE STATE COLLEGE BY SENDING AN EMAIL TO CTP.STORMREPORTS@NOAA.GOV... POSTING TO THE NWS STATE COLLEGE FACEBOOK PAGE...OR TWEET @NWSSTATECOLLEGE WITH THE HASHTAG #CTPWX. && $$ PAZ064>066-150900- /O.CON.KCTP.WS.W.0008.000000T0000Z-131215T0900Z/ ADAMS-YORK-LANCASTER- INCLUDING THE CITIES OF...GETTYSBURG...YORK...LANCASTER 857 PM EST SAT DEC 14 2013 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY... * LOCATIONS...LOWER SUSQUEHANNA VALLEY. * HAZARD TYPES...A WINTRY MIX OF SLEET AND FREEZING RAIN. * SNOW ACCUMULATIONS...STORM TOTALS OF 3 TO 6 INCHES. * ICE ACCUMULATIONS...UP TO ONE-TENTH OF AN INCH. * TIMING...THE WINTRY MIX IS EXPECTED TO END AFTER MIDNIGHT. SOME PATCHY FREEZING DRIZZLE MAY LINGER INTO THE EARLY MORNING HOURS SUNDAY. * IMPACTS...WIDESPREAD DANGEROUS TRAVEL DUE TO SNOW COVERED AND ICY ROADS. UNNECESSARY TRAVEL IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... DANGEROUS WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. USE EXTREME CAUTION IF PLANNING TO TRAVEL. FOR THE LATEST WEATHER INFORMATION...GO TO WEATHER.GOV/CTP OR STAY TUNED TO NOAA WEATHER RADIO. REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE STATE COLLEGE BY SENDING AN EMAIL TO CTP.STORMREPORTS@NOAA.GOV... POSTING TO THE NWS STATE COLLEGE FACEBOOK PAGE...OR TWEET @NWSSTATECOLLEGE WITH THE HASHTAG #CTPWX. && $$ MS/PJ/EC
000 WWUS41 KCTP 150913 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 413 AM EST SUN DEC 15 2013 .COLD AIR WILL MOVE ACROSS THE GREAT LAKES AS OUR EXITING WINTER STORM MOVES UP AND OFF THE COAST. THE COLD AIR WILL PRODUCE LAKE EFFECT SNOW BANDS. PAZ004-151915- /O.EXP.KCTP.WS.W.0008.000000T0000Z-131215T0900Z/ /O.NEW.KCTP.LE.Y.0011.131215T2100Z-131216T1500Z/ WARREN- INCLUDING THE CITY OF...WARREN 413 AM EST SUN DEC 15 2013 ...LAKE EFFECT SNOW ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM EST MONDAY... ...WINTER STORM WARNING HAS EXPIRED... THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A LAKE EFFECT SNOW ADVISORY...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM EST MONDAY. * LOCATIONS...NORTH-CENTRAL MOUNTAINS. * HAZARD TYPES...HEAVY SNOW. * ACCUMULATIONS...3 TO 5 INCHES OF SNOW. * TIMING...SNOW IS EXPECTED TO END IN MOST AREAS AFTER MIDNIGHT. * IMPACTS...DANGEROUS TRAVEL DUE TO SNOW COVERED ROADS. UNNECESSARY TRAVEL IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... HAZARDOUS WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. USE CAUTION IF PLANNING TO TRAVEL. FOR THE LATEST WEATHER INFORMATION...GO TO WEATHER.GOV/CTP OR STAY TUNED TO NOAA WEATHER RADIO. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE STATE COLLEGE BY SENDING AN EMAIL TO CTP.STORMREPORTS@NOAA.GOV... POSTING TO THE NWS STATE COLLEGE FACEBOOK PAGE...OR TWEET @NWSSTATECOLLEGE WITH THE HASHTAG #CTPWX. && $$ PAZ005-006-010>012-017>019-024>028-033>037-041-042-045-046- 049>053-056>059-063>066-151015- /O.EXP.KCTP.WS.W.0008.000000T0000Z-131215T0900Z/ MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD- NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN- JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING- SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR- NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON- CUMBERLAND-ADAMS-YORK-LANCASTER- INCLUDING THE CITIES OF...BRADFORD...COUDERSPORT...ST. MARYS... RIDGWAY...EMPORIUM...RENOVO...DUBOIS...CLEARFIELD...PHILIPSBURG... STATE COLLEGE...JOHNSTOWN...ALTOONA...HUNTINGDON...MOUNT UNION... LEWISTOWN...MIFFLINTOWN...SOMERSET...BEDFORD...MCCONNELLSBURG... CHAMBERSBURG...MANSFIELD...WELLSBORO...LAPORTE...LOCK HAVEN... WILLIAMSPORT...LEWISBURG...SELINSGROVE...DANVILLE...SUNBURY... SHAMOKIN...BLOOMSBURG...BERWICK...NEWPORT...HARRISBURG... HERSHEY...POTTSVILLE...LEBANON...CARLISLE...GETTYSBURG...YORK... LANCASTER 413 AM EST SUN DEC 15 2013 ...WINTER STORM WARNING HAS EXPIRED... THE STORM WHICH PRODUCED HEAVY SNOW OVER CENTRAL PENNSYLVANIA AND A MIXTURE OF SNOW AND FREEZING RAIN IN SOUTHEASTERN PENNSYLVANIA IS RAPIDLY MOVING OFF TO OUR NORTH AND EAST. SNOWFALL IN CENTRAL PENNSYLVANIA GENERALLY RANGED 6-11 INCHES AND THERE HAVE BEEN REPORTS OF 0.25 TO 0.40 INCHES OF FREEZING RAIN IN SOUTHEASTERN AREAS. THERE ARE STILL SOME ISOLATED AREAS OF PATCHY FREEZING DRIZZLE IN EASTERN PENNSYLVANIA AND ROADS WILL TAKE SOME TIME TO BE CLEARED. A COLD FRONT WILL MOVE ACROSS THE REGION LATER TODAY. BUT THE THREAT OF SIGNIFICANT SNOW AND ICE HAS PASSED. $$
What forecasters said that day
The local office's own words before this winter storm 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 winter storm warning went out at Dec 13, 10:08 AM EST, 1 hour 24 minutes earlier.
Area forecast discussion, Dec 13, 10:08 AM EST, 1 hour 24 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 1008 AM EST FRI DEC 13 2013 .SYNOPSIS... A WIDESPREAD WINTER STORM WILL IMPACT THE AREA STARTING BEFORE SUNRISE ON SATURDAY AND LASTING INTO SATURDAY NIGHT. THE STORM WILL BRINGING MODERATE TO HEAVY AMOUNTS OF SNOW TO MOST OF CENTRAL PENNSYLVANIA. COLD AND BRISK CONDITIONS WILL THEN HOLD WITH OCCASIONAL SNOW FROM LAKE EFFECT AND POSSIBLY A CLIPPER SYSTEM EARLY NEXT WEEK. A GENERALLY DRY PERIOD IS EXPECTED FOR THE SECOND HALF OF THE WEEK WITH A SIGNIFICANT WARM UP POSSIBLE BY NEXT WEEKEND. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... 10 AM UPDATE... MINOR CHANGES...NEW 09Z SREF GUIDANCE NOT SHOWING MUCH CHANGE...STILL LOOKING LIKE A WINTRY SATURDAY FOR THE CWA. PREV... THICK CLOUD DECK MOVING DOWN FROM THE NW...AND THIS COULD SIGNIFICANTLY IMPACT TEMPERATURES TODAY. WILL COUNT ON THE CLOUDS...LOW SUN ANGLE AND -10C 8H TEMPS TO KEEP US COLDER THAN NORMALS...BUT PROBABLY WARMER THAN THURSDAY. THE WEST WIND CONTINUES TO BE GUSTY...BUT SHOULD SLACKEN THIS AFTERNOON AS A BISECTED SFC RIDGE PASSES OVERHEAD. LAKE EFFECT CLOUDS AND SHSN/FLURRIES OVER THE NORTH WILL LINGER MOST IF NOT ALL OF THE DAY WITH VERY MINOR ACCUMS EXPECTED. THE WEAK TROUGH IN BETWEEN THE COLDER NRN HIGH AND MORE MODIFIED SRN HIGH IS PROBABLY ENHANCED BY THE WARM LAKE WATERS. THIS TROUGH WILL MOST LIKELY CONTRIBUTE TO AN INITIALLY-FAVORED AREA FOR CLOUD/SNOW DEVELOPMENT TONIGHT. && .SHORT TERM /6 PM THIS EVENING THROUGH SATURDAY NIGHT/... EAST WIND BEGINS IN EARNEST DURING THE EVENING. LOW PRESSURE OVER THE HIGH PLAINS TODAY WILL BE KICKED INTO TEXAS THIS EVENING AND A BROAD INVERTED TROUGH RIDES UP INTO THE TN AND OHIO VALLEYS TONIGHT. GOOD MOISTURE TRANSPORT WILL BRING MODEST BUT NOT UNUSUAL PWATS INTO THE STATE LATE TONIGHT. THE FOCUS OF THE WEAK TROUGH/BOUNDARY OVER THE NRN MTS WILL LIKELY LEAD TO THE FIRST SNOW FALLING THERE LATER TONIGHT. THE BEST OF THE LIFT TERMINATES AS IT RUNS INTO A FAST W-E FLOW ACROSS THE GREAT LAKES AND THE 1038HPA SFC HIGH OVER ONTARIO AND QUEBEC. THE SNOW SHOULD DEVELOP MORE SO THAN SPREAD ACROSS THE AREA SATURDAY MORNING...ALTHOUGH THE BEST MOISTURE AND A FEW BANDS OF MODERATE SNOW WILL PUSH FROM S-N OVER THE STATE SATURDAY. THE PROFILE TEMPS FOR THE FIRST 15-18 HRS OF THIS STORM LOOK TO BE ALL COLD. NO WORRY OVER PRECIP TYPE FOR MOST OF THE AREA. LATEST QPF FROM MOST MDLS AND SREF MEAN PUTS MORE THAN A HALF OF AN INCH OVER MOST OF THE AREA...WITH AMOUNTS UP TO THREE- QUARTERS OF AN INCH EASILY POSSIBLE VIEWING THE LATEST PLUME PLOTS. THE STORM CENTER IS VERY NEBULOUS AND THE INITIAL INVERTED TROUGH ON THE WESTERN SIDE OF THE APP MTNS WILL CONTINUE TO DEEPEN BUT LIKELY YIELD IN MAGNITUDE TO A COASTAL LOW. THAT COASTAL LOW POSITION IS NOW VERY WELL AGREED-UPON SO MUCH SO THAT THE SFC PRES COMP CHART IS ALMOST ONE SET OF PIXELS WITH THE DIFF MDL LOW POSITIONS STACKED RIGHT ON TOP OF EACH OTHER. BY 06Z SUN...THE NEW LOW WILL BE JUST OFF ATLANTIC CITY NJ. THE BULK OF THE PRECIP WILL BE IN THE AFTERNOON AND EVENING AS THE DEEPENING EASTERLY FLOW DOES BECOME SOMEWHAT ANOMALOUS AT 925MB. THE MOISTURE RICH EASTERLIES WILL BE POINTED AT CENTRAL PA...ESP THE POCONOS AND CENTRAL/NRN MTS. SRLY WIND ANOMALIES AT 8H DURING THE EVENING WILL TRY TO BRING ABOVE-FREEZING AIR INTO THE AREA ALOFT. HOWEVER...THE TEMPS ARE SO COLD ALOFT THAT IT MAY TAKE A WHILE FOR THIS TO HAPPEN. THE PROGRESSIVE NATURE OF THE SYSTEM COULD MEAN THAT THE DURATION OF ANY SLEET OR FREEZING RAIN WILL BE BRIEF AND GENERALLY AT THE TAIL-END OF THE PRECIP ON SAT NIGHT. BIG DRY SLOT WORKS IN SAT NIGHT AND WILL CONFINE THE AVAILABLE MOISTURE TO THE LOWEST 5KFT AGL. DRIZZLE MAY THEN ENSUE IN THE SRN TIER OVER THE SNOW PACK AND GENERALLY COLD AIR. THUS...THERE IS SOME RISK OF A MINOR ACCUM OF ICE IN THE LAURELS...SC MTS AND THE SERN THIRD OF THE AREA. BUT...THE MAIN THREAT IS WITH THE SNOW. SLR/S WILL BE NORMAL TO JUST SLIGHTLY FLUFFIER THAN NORMAL AT 12:1 OR 15:1. THE COLDER AIR IN THE NORTH WILL BALANCE THE LOWER QPF THERE AND COULD MAKE FOR A HIGHLY HOMOGENEOUS SNOWFALL. LATEST ITERATION OF THE SNOW TOTAL MAP FOR THE STORM IS MAINLY 5-8 WITH 10 POSS IN THE NORTHEAST...AND 4-6 IN THE SE. THE WAGGLE IN THE SE IS THAT IT MAY NOT TURN TO ANY MIX OR LIQUID...AND THE WAGGLE IN THE NORTH/WEST WEILL BE THE LOWER QPF. THE NUMBERS ARE STILL VERY CLOSE TO WARNING CRITERIA IF TAKEN AS 24 HOUR NUMBERS. SO THE CURRENT WATCH WAS HELD AS IS AND THE REST OF THE /SRN/ CWA WAS ADDED IN AFTER COLLABORATION WITH SURROUND OFFICES AND WPC GUIDANCE. && .LONG TERM /SUNDAY THROUGH THURSDAY/... THE NRN STREAM TROUGH WILL THEN CROSS THE LWR GRT LKS SUN NGT AND BEGIN A PERIOD OF ENHANCED LAKE EFFECT SNOWS/EXTENSIVE CLOUDS DOWNWIND OF LAKE ERIE. WEAK RIDGING SHOULD PROVIDE A COLD BUT DRY START TO NEXT WEEK. AN ARCTIC SHORTWAVE CROSSING THE GREAT LAKES/NORTHEAST/MID-ATLC TUE- WED WILL LIKELY PRODUCE SOME LGT SNOWS WITH LAKE ENHANCEMENT. AFTER THAT...MODELS BEGIN TO DIVERGE SIGNIFICANTLY /AFTER BEING IN QUITE GOOD AGREEMENT UNTIL THEN/. GFS KEEPS BROAD TROUGH OVER THE EASTERN U.S. WITH TROUGH DIGGING OVER W ROCKIES...WHILE ECMWF DIGS TROUGH OVER CENTRAL U.S. BRINGING WARMER SW FLOW TO PA. BEST FORECAST IS FOR A GRADUAL MODERATION OF TEMPS WITH POSS A MORE PRONOUNCED WARM UP HEADING INTO NEXT WEEKEND. && .AVIATION /15Z FRIDAY THROUGH TUESDAY/... REGIONAL RADAR LOOP SHOWS LAKE EFFECT SHSN REMAIN NORTH OF THE PA BORDER AT 11Z. HOWEVER...A PLUME OF INCREASING LOW LVL MOISTURE WORKING ACROSS THE GRT LKS IN ADVANCE OF AN APPROACHING COLD FRONT HAS MADE IT INTO NW PA...PRODUCING MVFR CIGS AT KBFD. EXPECT MVFR STRATOCU TO REMAIN AT KBFD TODAY WITH SOME LAKE EFFECT -SHSN BY AFTN...AS SHIFTING WINDS PUSH LAKE EFFECT BAND SOUTHWARD. FOR THE REST OF CENTRAL PA...VERY DRY AIR OVR THE AREA SHOULD ENSURE VFR CONDS TODAY. STRONG WEST WINDS ALOFT...COMBINED WITH LGT WINDS AT THE SFC...WILL LIKELY RESULT IN LLWS AT KLNS THRU ARND 14Z. THREAT OF LLWS WILL SUBSIDE BY LATE AM...AS CORE OF STRONG WINDS ALOFT PASS THE AREA. MAIN AVIATION CONCERN FOR THE REST OF THE DAY WILL BE THE NW MTNS...WHERE LAKE EFFECT SNOW SHOWERS COULD POTENTIALLY PRODUCE OCNL IFR VSBYS AT KBFD THIS AFTN. ACROSS SOUTHERN PA...MODEL DATA INDICATES DRY AIR REMAINS ENTRENCHED...LEADING TO A NEAR CERTAINTY OF VFR CONDS. A DIMINISHING WEST WIND THIS EVENING WILL CUT OFF MOISTURE FEED FROM LK ERIE...ENDING THE THREAT OF SHSN AT KBFD. OUTLOOK... SAT...SNOW OR MIXED PRECIP WITH LOW CIGS/VSBYS LIKELY. SUN...AM LOW CIGS POSS W MTNS. PM SHSN/REDUCED VSBYS POSS W MTNS. MON...LGT SNOW/REDUCED VSBYS POSS LATE NW MTNS. TUE...LGT SNOW/REDUCED VSBYS POSS EARLY NW MTNS. && .CTP WATCHES/WARNINGS/ADVISORIES... WINTER STORM WATCH FROM LATE TONIGHT THROUGH LATE SATURDAY NIGHT FOR PAZ004>006-010>012-017>019-024>028-033>037-041-042- 045-046-049>053-056>059-063>066. && SYNOPSIS...DANGELO NEAR TERM...ROSS/DANGELO SHORT TERM...DANGELO LONG TERM...DANGELO/RXR/STEINBUGL AVIATION...FITZGERALD
Hazardous weather outlook, Dec 13, 3:20 AM EST, 8 hours 12 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 320 AM EST FRI DEC 13 2013 PAZ006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066-140830- POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE- SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-SOMERSET- BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING-SULLIVAN- SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR- NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND- ADAMS-YORK-LANCASTER- 320 AM EST FRI DEC 13 2013 ...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE SATURDAY NIGHT... THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...TODAY AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV/STATECOLLEGE ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER STORM WATCH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV/STATECOLLEGE ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER STORM WATCH. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. PAZ004-005-140830- WARREN-MCKEAN- 320 AM EST FRI DEC 13 2013 ...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE SATURDAY NIGHT... THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...TODAY AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV/STATECOLLEGE ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER STORM WATCH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV/STATECOLLEGE ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER STORM WATCH. ADDITIONAL MODERATE SNOW ACCUMULATIONS ARE POSSIBLE SUNDAY AS NORTHWEST WINDS BRING LAKE EFFECT SNOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. DANGELO
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 12, 9:08 PM EST | Winter Storm Watch | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 14 hr |
Nearby
Winter Storm Warnings in Pennsylvania, 2013Every winter storm warning in 2013
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.