Alert archive / Pennsylvania / Winter Storm Warnings in 2011
Winter Storm Warning 4, NWS State College, PA
NWS State College, PA issued this winter storm warning at Jan 31, 2011, 3:07 PM EST for 33 counties in Pennsylvania. It took effect at Feb 1, 2011, 1:00 AM EST. It was in force for 30 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
- Jan 31, 2011, 3:07 PM EST (20:07 UTC)
- In effect from
- Feb 1, 2011, 1:00 AM EST
- Expired
- Feb 2, 2011, 6:41 AM EST
- In force
- 30 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 20:13 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, 8.1 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
- 1411 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 175 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
852 WWUS41 KCTP 312007 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 307 PM EST MON JAN 31 2011 ...A WINTER STORM WILL AFFECT THE REGION STARTING TONIGHT AND LASTING THROUGH WEDNESDAY... .A MAJOR WINTER STORM WILL AFFECT THE REGION OVER THE NEXT FEW DAYS...WITH THE MAIN CENTER OF LOW PRESSURE MOVING NORTHEAST ACROSS THE OHIO VALLEY LATE TUESDAY INTO WEDNESDAY. THIS LONG DURATION AND COMPLEX STORM SYSTEM WILL BRING AN INITIAL ROUND OF SNOW TO ALL OF CENTRAL PENNSYLVANIA TONIGHT INTO TUESDAY MORNING. THE SECOND ROUND OF STEADY AND HEAVIER SNOW AND MIXED PRECIPITATION WILL OCCUR TUESDAY EVENING INTO WEDNESDAY. THE ONE TWO PUNCH FROM THIS STORM WILL LIKELY RESULT IN HEAVY SNOW ACROSS THE NORTHERN THIRD TO HALF OF THE STATE. AFTER UP TO SEVERAL INCHES OF SNOW TONIGHT INTO TUESDAY MORNING...THICK AND DAMAGING ICE ACCUMULATIONS FROM FREEZING RAIN AND SLEET ARE LIKELY FOR THE CENTRAL AND SOUTHERN COUNTIES TUESDAY EVENING INTO WEDNESDAY. PAZ004>006-010>012-037-041-042-011115- /O.UPG.KCTP.WS.A.0002.110201T0600Z-110202T1800Z/ /O.NEW.KCTP.WS.W.0004.110201T0600Z-110202T2200Z/ WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-TIOGA- NORTHERN LYCOMING-SULLIVAN- INCLUDING THE CITIES OF...WARREN...BRADFORD...COUDERSPORT... ST. MARYS...RIDGWAY...EMPORIUM...RENOVO...MANSFIELD...WELLSBORO... LAPORTE 307 PM EST MON JAN 31 2011 ...WINTER STORM WARNING IN EFFECT FROM 1 AM TUESDAY TO 5 PM EST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER STORM WARNING FOR SIGNIFICANT SNOW AND ICE ACCUMULATION...WHICH IS IN EFFECT FROM 1 AM TUESDAY TO 5 PM EST WEDNESDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * LOCATION...CENTRAL PENNSYLVANIA. * PRECIPITATION TYPE...SNOW LATE TONIGHT AND TUESDAY MORNING...THEN A TRANSITION TO PERIODS OF LIGHTER SNOW...SLEET AND FREEZING RAIN FOR A 6 TO 10 HOUR PERIOD TUESDAY AFTERNOON AND EVENING. A SECOND BATCH OF STEADY...AND HEAVIER PRECIPITATION WILL OVERSPREAD THE AREA TUESDAY NIGHT AND CONTINUE THROUGH AT LEAST WEDNESDAY MORNING. PRECIPITATION TYPE WITH THIS SECOND ROUND WILL BE MAINLY A COMBINATION OF SNOW AND SLEET. A FEW PERIODS OF FREEZING RAIN ARE ALSO POSSIBLE WEDNESDAY MORNING. * ACCUMULATIONS...SEVERAL INCHES OF SNOW LIKELY BEFORE TAPERING TO PERIODS OF LIGHT SLEET AND FREEZING RAIN TUESDAY AFTERNOON. ADDITIONAL...AND SIGNIFICANT SNOW AND SLEET ACCUMULATION IS LIKELY ACROSS THE NORTHERN MOUNTAINS TUESDAY NIGHT THROUGH WEDNESDAY...BRINGING STORM TOTAL SNOWFALL BETWEEN 7 AND 12 INCHES. THERE IS A LOW PROBABILITY OF DAMAGING ACCUMULATIONS OF FREEZING RAIN LATE TUESDAY INTO WEDNESDAY IF WARMER AIR STREAMS IN ALOFT. * TIMING...BEGINNING TONIGHT AND LASTING THROUGH WEDNESDAY. * IMPACTS...WILL SIGNIFICANTLY IMPACT TRAVEL DUE TO SNOW AND ICE COVERED ROADS. POWER OUTAGES ARE ALSO POSSIBLE...ESPECIALLY CLOSER TO INTERSTATE 80 DUE TO THICK ACCRETIONS OF FREEZING RAIN ON TREE LIMBS WHICH COULD KNOCK DOWN POWER LINES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...SLEET...OR ICE ARE EXPECTED OR OCCURRING. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO TAKE AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND A CELLULAR PHONE IN CASE YOUR CAR BECOMES STRANDED. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...WEATHER.GOV/STATECOLLEGE. && $$ PAZ017>019-024>028-033>036-045-046-049>053-056>059-063>066-011115- /O.UPG.KCTP.WS.A.0002.110201T0600Z-110202T1800Z/ /O.NEW.KCTP.WS.W.0004.110201T0600Z-110202T1800Z/ CLEARFIELD-NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR- HUNTINGDON-MIFFLIN-JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN- SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR- NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON- CUMBERLAND-ADAMS-YORK-LANCASTER- INCLUDING THE CITIES OF...DUBOIS...CLEARFIELD...PHILIPSBURG... STATE COLLEGE...JOHNSTOWN...ALTOONA...HUNTINGDON...MOUNT UNION... LEWISTOWN...MIFFLINTOWN...SOMERSET...BEDFORD...MCCONNELLSBURG... CHAMBERSBURG...LOCK HAVEN...WILLIAMSPORT...LEWISBURG... SELINSGROVE...DANVILLE...SUNBURY...SHAMOKIN...BLOOMSBURG... NEWPORT...HARRISBURG...HERSHEY...POTTSVILLE...LEBANON... CARLISLE...GETTYSBURG...YORK...LANCASTER 307 PM EST MON JAN 31 2011 ...WINTER STORM WARNING IN EFFECT FROM 1 AM TUESDAY TO 1 PM EST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER STORM WARNING FOR SEVERAL INCHES OF SNOW FOLLOWED BY SIGNIFICANT ICE ACCUMULATION...WHICH IS IN EFFECT FROM 1 AM TUESDAY TO 1 PM EST WEDNESDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * LOCATION...CENTRAL PENNSYLVANIA. * PRECIPITATION TYPE...SNOW LATE TONIGHT AND TUESDAY MORNING...THEN A TRANSITION TO PERIODS OF LIGHTER SNOW...SLEET AND FREEZING RAIN FOR ABOUT A 6 TO 10 HOUR PERIOD TUESDAY AFTERNOON AND EVENING. A SECOND BATCH OF STEADY... AND HEAVIER PRECIPITATION WILL SPREAD OVER THE AREA TUESDAY NIGHT AND CONTINUE THROUGH AT LEAST WEDNESDAY MORNING. PRECIPITATION TYPE WITH THIS SECOND ROUND WILL BE MAINLY SLEET AND...OR FREEZING RAIN ACROSS THE SOUTHERN HALF OF PENNSYLVANIA. * ACCUMULATIONS...2 TO 4 INCHES OF SNOW LIKELY BEFORE MIXING WITH OR CHANGING TO PERIODS OF LIGHTER SLEET AND FREEZING RAIN TUESDAY. ADDITIONAL...AND SIGNIFICANT SLEET AND FREEZING RAIN IS LIKELY TUESDAY NIGHT AND WEDNESDAY. DAMAGING ACCUMULATIONS OF ICE UP TO ONE HALF OF AN INCH IN THICKNESS IS POSSIBLE LATE TUESDAY INTO WEDNESDAY. * TIMING...BEGINNING TONIGHT AND LASTING THROUGH MIDDAY WEDNESDAY. * IMPACTS...WILL SIGNIFICANTLY IMPACT TRAVEL DUE TO SNOW AND ICE COVERED ROADS. POWER OUTAGES ARE ALSO POSSIBLE DUE TO THICK ACCRETIONS OF FREEZING RAIN ON TREE LIMBS WHICH COULD KNOCK DOWN POWER LINES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...SLEET...OR ICE ARE EXPECTED OR OCCURRING. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO TAKE AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND A CELLULAR PHONE IN CASE YOUR CAR BECOMES STRANDED. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...WEATHER.GOV/STATECOLLEGE. && $$ LAMBERT/CERU/KOZAR
5 follow-up statements
510 WWUS41 KCTP 010847 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 347 AM EST TUE FEB 1 2011 PAZ004>006-010>012-037-041-042-020015- /O.CON.KCTP.WS.W.0004.000000T0000Z-110202T2200Z/ WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-TIOGA- NORTHERN LYCOMING-SULLIVAN- INCLUDING THE CITIES OF...WARREN...BRADFORD...COUDERSPORT... ST. MARYS...RIDGWAY...EMPORIUM...RENOVO...MANSFIELD...WELLSBORO... LAPORTE 347 AM EST TUE FEB 1 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM EST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM EST WEDNESDAY. * LOCATION...NORTH CENTRAL PENNSYLVANIA. * PRECIPITATION TYPE...SNOW WILL TRANSITION TO A MIXTURE OF LIGHT SNOW AND SLEET THIS AFTERNOON. A SECOND AREA OF WINTRY PRECIPITATION WILL OVERSPREAD THE AREA TONIGHT AND CONTINUE THROUGH WEDNESDAY MORNING. SNOW AND SLEET WILL REMAIN THE DOMINANT PRECIPITATION TYPES WITH PERIODS OF FREEZING RAIN LIKELY NEAR INTERSTATE 80. * ACCUMULATIONS...5 TO 10 INCHES OF SNOW. ICE ACCUMULATIONS BETWEEN ONE TENTH AND ONE QUARTER INCH. * IMPACTS...SNOW AND ICE COVERED ROADS WILL CREATE HAZARDOUS TRAVEL CONDITIONS. POWER OUTAGES ARE ALSO POSSIBLE...ESPECIALLY CLOSER TO INTERSTATE 80 DUE TO THICK ACCRETIONS OF FREEZING RAIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...OR ICE ARE EXPECTED OR OCCURRING. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO TAKE AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND A CELLULAR PHONE IN CASE YOUR CAR BECOMES STRANDED. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT... WEATHER.GOV/STATECOLLEGE. && $$ PAZ017>019-024>028-033>036-045-046-049>053-056>059-063>066-020015- /O.CON.KCTP.WS.W.0004.000000T0000Z-110202T1800Z/ CLEARFIELD-NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR- HUNTINGDON-MIFFLIN-JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN- SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR- NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON- CUMBERLAND-ADAMS-YORK-LANCASTER- INCLUDING THE CITIES OF...DUBOIS...CLEARFIELD...PHILIPSBURG... STATE COLLEGE...JOHNSTOWN...ALTOONA...HUNTINGDON...MOUNT UNION... LEWISTOWN...MIFFLINTOWN...SOMERSET...BEDFORD...MCCONNELLSBURG... CHAMBERSBURG...LOCK HAVEN...WILLIAMSPORT...LEWISBURG... SELINSGROVE...DANVILLE...SUNBURY...SHAMOKIN...BLOOMSBURG... NEWPORT...HARRISBURG...HERSHEY...POTTSVILLE...LEBANON... CARLISLE...GETTYSBURG...YORK...LANCASTER 347 AM EST TUE FEB 1 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST WEDNESDAY. * LOCATION...SOUTH CENTRAL PENNSYLVANIA. * PRECIPITATION TYPE...SNOW AND SLEET OVER THE CENTRAL MOUNTAINS NEAR INTERSTATE 80 WILL TRANSITION TO A MIXTURE OF SLEET AND FREEZING RAIN. FREEZING RAIN WILL BE THE MAIN PRECIPITATION TYPE SOUTH OF INTERSTATE 80 ESPECIALLY ACROSS THE SOUTHERN TIER. * ACCUMULATIONS...3 TO 6 INCHES OF SNOW AND SLEET NORTH OF INTERSTATE 80. 1 TO 2 INCHES OF SNOW AND SLEET SOUTH OF INTERSTATE 80 BETWEEN ROUTE 22. LITTLE TO NO SNOW OR SLEET ACCUMULATION FROM THE PENNSYLVANIA TURNPIKE SOUTH TO THE MARYLAND BORDER. SIGNIFICANT ICE ACCUMULATION BETWEEN ONE QUARTER AND ONE HALF INCH ALONG AND SOUTH OF INTERSTATE 80. * IMPACTS...SNOW AND ICE COVERED ROADS WILL CREATE HAZARDOUS TRAVEL CONDITIONS. POWER OUTAGES ARE ALSO POSSIBLE DUE TO THICK ACCRETIONS OF FREEZING RAIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...OR ICE ARE EXPECTED OR OCCURRING. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO TAKE AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND A CELLULAR PHONE IN CASE YOUR CAR BECOMES STRANDED. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT... WEATHER.GOV/STATECOLLEGE. && $$ STEINBUGL/GARTNER
550 WWUS41 KCTP 011820 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 120 PM EST TUE FEB 1 2011 PAZ004>006-010>012-037-041-042-020500- /O.CON.KCTP.WS.W.0004.000000T0000Z-110202T2200Z/ WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-TIOGA- NORTHERN LYCOMING-SULLIVAN- INCLUDING THE CITIES OF...WARREN...BRADFORD...COUDERSPORT... ST. MARYS...RIDGWAY...EMPORIUM...RENOVO...MANSFIELD...WELLSBORO... LAPORTE 120 PM EST TUE FEB 1 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM EST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM EST WEDNESDAY. * LOCATION...NORTH CENTRAL PENNSYLVANIA. * PRECIPITATION TYPE...PERIODS OF LIGHT SNOW...SLEET AND FREEZING RAIN WILL OCCUR INTO THIS EVENING. A SECOND...AND HEAVIER AREA OF WINTRY PRECIPITATION WILL SPREAD OVER THE AREA TONIGHT AND CONTINUE THROUGH WEDNESDAY MORNING. SNOW AND SLEET...AND A FEW PERIODS OF FREEZING RAIN WILL FALL HEAVY AT TIMES. THE GREATEST THREAT FOR HEAVY FREEZING RAIN WILL BE CLOSER TO INTERSTATE 80. * ACCUMULATIONS...ANY ICE ACCUMULATION WILL BE LIGHT THROUGH DUSK WITH SNOW ACCUMULATION LESS THAN ONE INCH. AN ADDITONAL 2 TO 6 INCHES OF SNOW WILL FALL TONIGHT...WITH THE GREATEST AMOUNTS OF SNOW RIGHT ALONG THE NEW YORK BORDER. AN INCH OR LESS OF NEW SNOW WILL OCCUR NEAR INTERSTATE 80. ICE ACCUMULATIONS BETWEEN ONE TENTH AND ONE QUARTER INCH...WITH UP TO ONE HALF OF AN INCH OF GLAZE NEAR INTERSTATE 80. * IMPACTS...SNOW AND ICE COVERED ROADS WILL CREATE HAZARDOUS TRAVEL CONDITIONS. POWER OUTAGES ARE ALSO POSSIBLE... ESPECIALLY CLOSER TO INTERSTATE 80 DUE TO THICK ACCRETIONS OF FREEZING RAIN. * WINDS...EAST TO NORTHEAST 5 TO 10 MPH IN THE VALLEYS...SOUTHEAST 10 TO 20 MPH ON THE RIDGES. WINDS WILL SHIFT TO THE WEST IN THE WAKE OF A COLD FRONT WEDNESDAY AFTERNOON...AND INCREASE TO 15 TO 20 MPH WITH GUSTS UP TO 35 MPH POSSIBLE LATER WEDNESDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...OR ICE ARE EXPECTED OR OCCURRING. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO TAKE AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND A CELLULAR PHONE IN CASE YOUR CAR BECOMES STRANDED. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT... WEATHER.GOV/STATECOLLEGE. && $$ PAZ017>019-024>028-033>036-045-046-049>053-056>059-063>066-020500- /O.CON.KCTP.WS.W.0004.000000T0000Z-110202T1800Z/ CLEARFIELD-NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR- HUNTINGDON-MIFFLIN-JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN- SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR- NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON- CUMBERLAND-ADAMS-YORK-LANCASTER- INCLUDING THE CITIES OF...DUBOIS...CLEARFIELD...PHILIPSBURG... STATE COLLEGE...JOHNSTOWN...ALTOONA...HUNTINGDON...MOUNT UNION... LEWISTOWN...MIFFLINTOWN...SOMERSET...BEDFORD...MCCONNELLSBURG... CHAMBERSBURG...LOCK HAVEN...WILLIAMSPORT...LEWISBURG... SELINSGROVE...DANVILLE...SUNBURY...SHAMOKIN...BLOOMSBURG... NEWPORT...HARRISBURG...HERSHEY...POTTSVILLE...LEBANON... CARLISLE...GETTYSBURG...YORK...LANCASTER 120 PM EST TUE FEB 1 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST WEDNESDAY. * LOCATION...SOUTH CENTRAL PENNSYLVANIA. * PRECIPITATION TYPE...INTERMITTENT LIGHT FREEZING RAIN OR FREEZING DRIZZLE THIS AFTERNOON AND EARLY THIS EVENING. FREEZING RAIN...HEAVY AT TIMES TONIGHT THROUGH DAYBREAK WEDNESDAY...ALONG WITH PERIODS OF SLEET. * ACCUMULATIONS...ADDITONAL SNOW ACCUMULATIONS LESS THAN ONE INCH IN MOST PLACES...WITH UP TO 2 INCHES POSSIBLE ALONG INTERSTATE 80 NEAR WILLIAMSPORT...DANVILLE AND BLOOMSBURG. SIGNIFICANT ICE ACCUMULATION BETWEEN ONE QUARTER AND ONE HALF INCH ALONG AND SOUTH OF INTERSTATE 80...WITH THE HEAVIEST GLAZING LIKELY ACROSS THE RIDGES NEAR...OR JUST TO THE SOUTH OF INTERSTATE 80. * IMPACTS...SNOW AND ICE COVERED ROADS WILL CREATE HAZARDOUS TRAVEL CONDITIONS. POWER OUTAGES ARE ALSO POSSIBLE DUE TO THICK ACCRETIONS OF FREEZING RAIN. * WINDS...EAST TO NORTHEAST 5 TO 10 MPH IN THE VALLEYS...AND SOUTHEAST 10 TO 20 MPH ON THE RIDGES. WINDS WILL SHIFT TO THE WEST ACROSS THE LAUREL HIGHLANDS AND CENTRAL MOUNTAIN'S IN THE WAKE OF A COLD FRONT WEDNESDAY AFTERNOON...AND INCREASE TO 15 TO 20 MPH WITH GUSTS UP TO 40 MPH POSSIBLE LATER WEDNESDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...OR ICE ARE EXPECTED OR OCCURRING. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO TAKE AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND A CELLULAR PHONE IN CASE YOUR CAR BECOMES STRANDED. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT... WEATHER.GOV/STATECOLLEGE. && $$ LAMBERT/CERU/EVANEGO
054 WWUS41 KCTP 020342 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 1042 PM EST TUE FEB 1 2011 PAZ004>006-010>012-037-041-042-021145- /O.CON.KCTP.WS.W.0004.000000T0000Z-110202T2200Z/ WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-TIOGA- NORTHERN LYCOMING-SULLIVAN- INCLUDING THE CITIES OF...WARREN...BRADFORD...COUDERSPORT... ST. MARYS...RIDGWAY...EMPORIUM...RENOVO...MANSFIELD...WELLSBORO... LAPORTE 1042 PM EST TUE FEB 1 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM EST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM EST WEDNESDAY. * LOCATION...NORTH CENTRAL PENNSYLVANIA. * PRECIPITATION TYPE...SLEET AND FREEZING RAIN TURNING TO MAINLY FREEZING RAIN. * ACCUMULATIONS...AN INCH OR LESS OF ADDITIONAL SLEET. SIGNIFICANT ICE ACCUMULATIONS BETWEEN ONE QUARTER AND ONE HALF OF AN INCH. THE GREATEST THREAT FOR A GLAZE OF MORE THAN ONE HALF INCH IS CLOSER TO INTERSTATE 80. LOCATIONS RIGHT ALONG THE NEW YORK BORDER WILL LIKELY SEE A THINNER ICE ACCRETION. * IMPACTS...ICE AND SLEET COVERED ROADS WILL CREATE HAZARDOUS TRAVEL CONDITIONS. POWER OUTAGES ARE ALSO POSSIBLE...ESPECIALLY CLOSER TO INTERSTATE 80 DUE TO THICK ACCRETIONS OF FREEZING RAIN ON POWER LINES AND TREE LIMBS WHICH MAY BREAK OFF AND PULL DOWN THE POWER LINES. * WINDS...EAST TO NORTHEAST 5 TO 10 MPH IN THE VALLEYS... SOUTHEAST 10 TO 20 MPH ON THE RIDGES. WINDS WILL SHIFT TO THE WEST IN THE WAKE OF THE COLD FRONT WEDNESDAY AFTERNOON...AND INCREASE TO 15 TO 20 MPH WITH GUSTS UP TO 35 MPH POSSIBLE LATER WEDNESDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...OR ICE ARE EXPECTED OR OCCURRING. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO TAKE AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND A CELLULAR PHONE IN CASE YOUR CAR BECOMES STRANDED. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT... WEATHER.GOV/STATECOLLEGE. && $$ PAZ017>019-024>028-033>036-045-046-049>053-056>059-063>066-021145- /O.CON.KCTP.WS.W.0004.000000T0000Z-110202T1800Z/ CLEARFIELD-NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR- HUNTINGDON-MIFFLIN-JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN- SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR- NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON- CUMBERLAND-ADAMS-YORK-LANCASTER- INCLUDING THE CITIES OF...DUBOIS...CLEARFIELD...PHILIPSBURG... STATE COLLEGE...JOHNSTOWN...ALTOONA...HUNTINGDON...MOUNT UNION... LEWISTOWN...MIFFLINTOWN...SOMERSET...BEDFORD...MCCONNELLSBURG... CHAMBERSBURG...LOCK HAVEN...WILLIAMSPORT...LEWISBURG... SELINSGROVE...DANVILLE...SUNBURY...SHAMOKIN...BLOOMSBURG... NEWPORT...HARRISBURG...HERSHEY...POTTSVILLE...LEBANON... CARLISLE...GETTYSBURG...YORK...LANCASTER 1042 PM EST TUE FEB 1 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST WEDNESDAY. * LOCATION...SOUTH CENTRAL PENNSYLVANIA. * PRECIPITATION TYPE...SLEET AND FREEZING RAIN TURNING TO ALL FREEZING RAIN. LOCATIONS SOUTH OF THE TURNPIKE MAY WARM UP ENOUGH TO TURN TO PLAIN RAIN BY SUNRISE. BUT THOSE SOUTHERN TIER AREAS WILL STILL HAVE SIGNIFICANT AMOUNTS OF ICE BUILD UP BEFORE WARMING UP. * ACCUMULATIONS...LITTLE ADDITIONAL SLEET ACCUMULATIONS. SIGNIFICANT AND DAMAGING ICE ACCUMULATIONS BETWEEN ONE QUARTER AND ONE HALF INCH ALONG AND SOUTH OF INTERSTATE 80...WITH THE HEAVIEST GLAZING LIKELY ACROSS THE RIDGES NEAR AND JUST TO THE SOUTH OF INTERSTATE 80. SOME LOCATIONS MAY GET MORE THAN ONE HALF OF AN INCH OF A THICK...ICY GLAZE. * IMPACTS...SNOW AND ICE COVERED ROADS WILL CREATE HAZARDOUS TRAVEL CONDITIONS. POWER OUTAGES ARE ALSO LIKELY DUE TO THICK ACCRETIONS OF FREEZING RAIN ON THE POWER LINES THEMSELVES AND ALSO ON TREE LIMBS WHICH WOULD BREAK OFF AND COULD PULL DOWN THE POWER LINES. * WINDS...EAST TO NORTHEAST 5 TO 10 MPH IN THE VALLEYS...AND SOUTHEAST 10 TO 20 MPH ON THE RIDGES. WINDS WILL SHIFT TO THE WEST ACROSS THE LAUREL HIGHLANDS AND CENTRAL MOUNTAIN'S IN THE WAKE OF A COLD FRONT WEDNESDAY AFTERNOON...AND INCREASE TO 15 TO 20 MPH WITH GUSTS UP TO 40 MPH POSSIBLE LATER WEDNESDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...OR ICE ARE EXPECTED OR OCCURRING. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO TAKE AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND A CELLULAR PHONE IN CASE YOUR CAR BECOMES STRANDED. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT... WEATHER.GOV/STATECOLLEGE. && $$
215 WWUS41 KCTP 020838 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 338 AM EST WED FEB 2 2011 PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046- 049>053-056>059-063>066-021500- /O.EXT.KCTP.WS.W.0004.000000T0000Z-110202T1500Z/ 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...NEWPORT...HARRISBURG... HERSHEY...POTTSVILLE...LEBANON...CARLISLE...GETTYSBURG...YORK... LANCASTER 338 AM EST WED FEB 2 2011 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 10 AM EST THIS MORNING... THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 10 AM EST THIS MORNING. * LOCATION...CENTRAL PENNSYLVANIA. * PRECIPITATION TYPE...AREAS OF FREEZING RAIN AND FREEZING DRIZZLE WILL CONTINUE EARLY THIS MORNING. THE BULK OF THE HEAVY WINTRY PRECIPITATION IS OVER. * ACCUMULATIONS...AN ADDITIONAL MINOR GLAZE OF ICE. * IMPACTS...SNOW AND ICE COVERED ROADS WILL CREATE HAZARDOUS TRAVEL CONDITIONS. POWER OUTAGES MAY OCCUR DUE TO THICK ACCRETIONS OF FREEZING RAIN ON TREES AND POWER LINES. * WINDS...EAST TO SOUTHEAST 5 TO 10 MPH IN THE VALLEYS...AND SOUTHEAST 10 TO 20 MPH ON THE RIDGES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...OR ICE ARE EXPECTED OR OCCURRING. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO TAKE AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND A CELLULAR PHONE IN CASE YOUR CAR BECOMES STRANDED. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT... WEATHER.GOV/STATECOLLEGE. && $$ MS
641 WWUS41 KCTP 021141 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 641 AM EST WED FEB 2 2011 PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046- 049>053-056>059-063>066-021245- /O.CAN.KCTP.WS.W.0004.000000T0000Z-110202T1500Z/ WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD- NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN- JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING- SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR- NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON- CUMBERLAND-ADAMS-YORK-LANCASTER- INCLUDING THE CITIES OF...WARREN...BRADFORD...COUDERSPORT... ST. MARYS...RIDGWAY...EMPORIUM...RENOVO...DUBOIS...CLEARFIELD... PHILIPSBURG...STATE COLLEGE...JOHNSTOWN...ALTOONA...HUNTINGDON... MOUNT UNION...LEWISTOWN...MIFFLINTOWN...SOMERSET...BEDFORD... MCCONNELLSBURG...CHAMBERSBURG...MANSFIELD...WELLSBORO...LAPORTE... LOCK HAVEN...WILLIAMSPORT...LEWISBURG...SELINSGROVE...DANVILLE... SUNBURY...SHAMOKIN...BLOOMSBURG...NEWPORT...HARRISBURG... HERSHEY...POTTSVILLE...LEBANON...CARLISLE...GETTYSBURG...YORK... LANCASTER 641 AM EST WED FEB 2 2011 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS CANCELLED THE WINTER STORM WARNING. TEMPERATURES WILL RISE ABOVE FREEZING IN MANY LOCATIONS OVER THE NEXT FEW HOURS. SINCE THE THREAT OF ADDITIONAL ICING IS ESSENTIALLY OVER...THE WINTER STORM WARNING HAS BEEN CANCELLED. PERSONS TRAVELING THIS MORNING SHOULD USE EXTRA CAUTION AS ROADS MAY BE VERY SLICK FROM OVERNIGHT ICE ACCUMULATIONS. $$ MS
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 Jan 31, 11:59 AM EST, 3 hours 8 minutes earlier.
Area forecast discussion, Jan 31, 11:59 AM EST, 3 hours 8 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 1159 AM EST MON JAN 31 2011 .SYNOPSIS... A MESSY AND LONG-DURATION WINTER STORM WILL MOVE IN FROM THE WEST TONIGHT. THE STORM HAS THE POTENTIAL TO PRODUCE HEAVY SNOW AND HEAVY ACCUMULATIONS OF FREEZING RAIN AND SLEET OVER CENTRAL PENNSYLVANIA. WESTERLY WINDS IN THE WAKE OF THE STORM WILL CREATE SNOW SHOWERS IN THE WEST THURSDAY. HIGH PRESSURE BUILDS IN FOR FRIDAY BEFORE A STORM FORMS OVER THE DEEP SOUTH AND MOVES UP THE EAST COAST NEXT WEEKEND. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... COLD DOME OF HIGH PRESSURE WILL STAY SITUATED ACROSS SOUTHERN ONTARIO AND THE UPPER ST. LAWRENCE VALLEY THROUGH TUESDAY AFTERNOON. INCREASING MOISTURE IS BEGINNING TO BE LIFTED OVER THE MORE SHALLOW SOUTHERN EDGE OF THIS WEATHER FEATURE...AS SHOWN BY VSBL SAT LOOP AND THE SOLID DECK OF THICK STRATUS/STRATO CU NEAR THE MASON/DIXON LINE. THE WEAK TO MDT UVVEL/ISENTROPIC LIFT PRODUCING THIS EXPANSIVE CLOUD AREA WILL SPREAD NORTH ACROSS THE CWA DURING THE AFTERNOON. DEEPER UVVEL AND RESULTANT PRECIP SHOULD HOLD OFF ACROSS THE SOUTH UNTIL LATE TODAY /AROUND DUSK/. HOWEVER...MODELS NOTORIOUS FOR UNDERESTIMATING THE ONSET OF WARM ADVECTION PRECIP UP TO A FEW-SVRL HOURS. PRECIP TYPE FOR THE FIRST BATCH OF PRECIP TONIGHT /3-4 TENTHS WORTH IN MANY LOCATIONS/ WILL BE MAINLY SNOW. HOWEVER...A SHALLOW WEDGE OF WARMER...JUST ABOVE 0C AIR AROUND 800 MB...LIFTING NE INTO SOUTHERN PA AND THE LAURELS WELL AFTER MIDNIGHT COULD LEAD TO A MIX OR CHANGE TO SLEET OR A LITTLE -FZRA. COORDINATED WITH SURROUNDING WFOS TO HOLD OF ON ANY UPGRADE TO THE WINTER STORM WATCH AT THIS POINT. WILL LIKELY BE GOING THE ROUTE OF UPGRADING TO A LONG DURATION WINTER STORM WARNING FOR AT LEAST THE NORTHERN MTNS OF PENN. ACROSS THE SOUTHERN HALF OF PENN /WHERE THE SECOND /HEAVIER/ BATCH OF PRECIP WILL BE MAINLY SLEET AND FREEZING RAIN/ AND COULD COME IN BELOW WARNING CRITERIA IF ITS MAINLY SLEET... WE'RE STILL ON THE FENCE WHETHER IR NO TO TRANSITION TO A SPLIT HEADLINE FOR A WINTER WEATHER ADVISORY TONIGHT...WHILE MAINTAINING THE WATCH FOR LATER TOMORROW INTO WEDNESDAY. DECISIONS WILL BE MADE FOR THE AFTERNOON PACKAGE AFTER DIGESTING THE FULL SUITE OF 12Z GUIDANCE AND INTERMEDIATE SREF RUNS. LITTLE CHANGE WAS MADE TO PREVIOUS FCST...MID AFTERNOON MAXS IN THE UPPER TEENS ACROSS THE NORTH...TO MID AND UPPER 20S IN THE SOUTH. && .SHORT TERM /6 PM THIS EVENING THROUGH WEDNESDAY/... LOTS OF MOISTURE ALOFT WILL BE STREAMING IN FROM THE SOUTHWEST TONIGHT. THE BIG HIGH OFF TO THE N WILL MOVE LITTLE AND FILL ONLY THE SLIGHTEST BIT - AND THIS WILL CONTINUE TO HOLD THE COLD AIR IN PLACE. THIS IS THE FIRST INGREDIENT FOR A MESSY STORM. THE SECOND AND THIRD INGREDIENTS COME ALONG IN THE FORM OF A BROAD SOUTHWEST FLOW OF GULF MOISTURE AHEAD OF A VERY STRONG SHORTWAVE TROUGH MOVING OUT OF THE DESERT SOUTHWEST. THE RESULTING LOW OVER THE TX COAST DEEPENS AS IT TAKES A TRIP UP THE MS R AND THEN FOLLOWS OR STAYS 100 OR SO MI TO THE N OF THE MIGHTY OH R. THE TRACK OF THE STORM IS ALMOST BURNT INTO THE SCREEN OF MY MONITOR WITH NEARLY ALL MDLS AGREEING THAT THE MAIN/PRIMARY SFC LOW WILL PASS THROUGH CENTRAL OH AND THROUGH NRN/CENT PA. IT IS WORTH NOTING THAT THE GFS IS SLIGHTLY S OF MOST SOLNS...BUT THE DIFFERENCES AT THIS RANGE ARE SMALL. LOOKING FOR REASONS TO CHANGE THE FORECAST FROM WHAT WE HAVE...AND HAVE FOUND NONE. SEVERAL RIPPLES OF ENERGY ARE EJECTED OUT OF THE ALMOST-CUTOFF LOW OVER THE FOUR CORNERS. THE FIRST OF THESE STRONGER WAVES MOVES INTO THE OH VALLEY TONIGHT. AT THE SAME TIME THAT THE ERLY FLOW PILES UP MSTR IN THE HIGH ELEVATIONS OF THE S TONIGHT...IT GETS HELP IN THE FORM OF A MEETING OF THE DEVELOPING SRN JET AND A 120KT JET OVER ERN CANADA. PRECIP SHOULD BEGIN LIGHTLY THIS EVENING IN THE SW AND SPREAD TO COVER THE AREA AFTER MIDNIGHT. THE PRECIP WILL BE MAINLY SNOW...BUT SOME FZRA/FZDZ IS POSSIBLE IN THE SW. ACCUMS OVERNIGHT WILL START SLOWLY...BUT AN INCH OR TWO POSSIBLE EVERYWHERE AND 2-4 POSSIBLE IN THE NRN HALF BY MORNING. EVOLUTION OF THE STORM SEEMS STRAIGHT FORWARD THEN...WITH SNOW TURNING TO A MIX. THE PERIOD OF FZRA COULD BE VERY LONG OVER THE CENTRAL COS - IN AREAS LIKE CLEARFIELD...STATE COLLEGE AND DANVILLE. AREAS TO THE SOUTH WILL SEE A BETTER CHANCE OF RAIN MIXING IN AS TEMPS TRY TO WARM. THE COLD AIR DAMMING AND THICK CLOUDS WILL DIM THAT HOPE THOUGH. SO...MUCH OF THE EVENT WILL BE SNOW ALONG THE NY BORDER...WITH A LATE CHANGE TO RAIN IN THE S. THE TRIPLE POINT WILL PASS WED AM...AND WINDS JUST BEFORE AND IN THE DRY SLOT COULD REACH 20-30 MPH WITH GUSTS TO 50 MPH AS 70-80KT SRLY LLJET BLOWS THROUGH. THE NOSE OF THE JET POINTS RIGHT AT THE CENTRAL COS...AND THE DECELERATION THERE WILL SPELL HEAVY PRECIP LATE TUES NIGHT AND WED AM. THE WATCH IS STILL IN GOOD POSITION/TIMING. ALL OF THE AREA WILL SEE SOME SIGNIFICANT IMPACT FROM THIS STORM. THE SRN TIER WILL LIKELY HAVE THE LEAST WORRY...BUT ICE ACCUMS STILL POSSIBLE THERE. && .LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/... PRIMARY LOW PUSHES PAST DURING THE DAYLIGHT ON WED....TAPERING PRECIP OFF. THE TEMPS CRASH AFTERWARD AND SHSN LIKELY IN THE W/N FOR THE AFTN AND WED NIGHT. THE PREVIOUSLY ANTICIPATED BITTER COLD FOR THURS/FRI HAS NOW BEEN MODIFIED SLIGHTLY. IT WILL STILL BE COLD...BUT MINS BELOW 0F NOT IN THE CARDS ANYMORE PER LATEST MEX/MOSGUIDE/ENS-MOS NUMBERS. THE HIGH PRESSURE THAT BUILDS IN FOR THURS NIGHT TO FRI NIGHT IS THE EASTERN EXTENT OF THE MODIFIED CP AIR OVER THE NRN HALF OF THE CONUS ATTM. SO...IT COULD STILL BE COLD...ESP IF THE TRAJS OFF THE NEW SNOW/ICE PACK OVER THE MIDWEST AND LOCAL LEAD TO/ALLOW LESS MODIFICATION TO THE AIRMASS THAN WOULD BE EXPECTED WITH BARE GROUND. ALL IN ALL...FRI LOOKS LIKE THE DRIEST DAY. THE NEXT BIG THING WOULD BE A COASTAL LOW TO FORM ON FRIDAY OVER THE DEEP SOUTH AND RIDE UP THE COAST. THIS POTENTIAL WEEKEND STORM LOOKS MUCH MORE LIKE WHAT WE HAVE SEEN ALREADY THIS YEAR - ALL SNOW FOR THE REGION...WITH THE BEST CHANCE OF DEEP SNOW TO THE EAST OF STATE COLLEGE. && .AVIATION /18Z MONDAY THROUGH SATURDAY/... WIDESPREAD VFR WILL CONTINUE THROUGH MUCH OF THE AFTERNOON HOURS TODAY ACROSS MOST OF CENTRAL AND NORTHERN PA TAF SITES. NORTHERN EDGE OF AN EXPANSIVE VFR TO MVFR STRATO CU DECK JUST TO THE SOUTH OF THE PENN/MD BORDER AT 16Z WILL MOVE GRADUALLY NORTH ACROSS PENN THROUGH DUSK. SOME LIGHT SNOW WILL DEVELOP INVOF OF KJST...KMDT AND KLNS AROUND 00Z TUESDAY...AND NEAR A KBFD TO KIPT LINE AROUND...OR SHORTLY AFTER MIDNIGHT. WIDESPREAD IFR TO LIFR CIGS AND VSBYS WILL OCCUR LATER TONIGHT THROUGH MUCH OF TUESDAY IN SNOW OF VARYING INTENSITY....MIXING WITH OR CHANGING TO LIGHT SLEET/FZRA FROM SW TO NE DURING THE DAY TUESDAY. LOW LEVEL WIND SHEAR WILL ACCOMPANY THE 8-12 HOUR PERIOD OF PEAK SNOWFALL RATES LATE MONDAY NIGHT THROUGH TUESDAY MORNING. OUTLOOK... TUE NIGHT AND WED...WIDESPREAD IFR TO LIFR CIGS WITH IFR TO MVFR VSBYS IN PERIODS OF MAINLY SLEET AND/OR FREEZING RAIN. ANOTHER PERIOD OF SIGNIFICANT LLWS WEDNESDAY MORNING...THEN A SHARP SHIFT AND INCREASE IN SFC WINDS TO THE WEST WITH SFC GUSTS TO 35 KTS WED AFTERNOON AND NIGHT. MAIN THREAT FOR THE HIGHER SFC GUSTS SHOULD BE ACROSS SRN PENN. THUR AND FRIDAY...IMPROVING CONDITIONS TO VFR WITH AREAS OF MVFR IN MAINLY MTN SNOW SHOWERS. GRADUALLY DIMINISHING WINDS. && .CTP WATCHES/WARNINGS/ADVISORIES... WINTER STORM WATCH FROM LATE TONIGHT THROUGH WEDNESDAY AFTERNOON FOR PAZ004>006-010>012-017>019-024>028-033>037-041- 042-045-046-049>053-056>059-063>066. && SYNOPSIS...DANGELO/LAMBERT NEAR TERM...LAMBERT SHORT TERM...DANGELO LONG TERM...DANGELO AVIATION...LAMBERT/GARTNER
Hazardous weather outlook, Jan 31, 4:17 AM EST, 10 hours 50 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 417 AM EST MON JAN 31 2011 PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066-010930- 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- 417 AM EST MON JAN 31 2011 ...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY AFTERNOON... 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...TUESDAY THROUGH SUNDAY. 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 WILL LIKELY BE NEEDED.
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 30, 7:18 PM EST | Winter Storm Watch | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 20 hr |
Nearby
Winter Storm Warnings in Pennsylvania, 2011Every winter storm warning in 2011
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.