Alert archive / Pennsylvania / Winter Storm Warnings in 2007
Winter Storm Warning 5, NWS State College, PA
NWS State College, PA issued this winter storm warning at Dec 12, 2007, 7:57 PM EST for 25 counties in Pennsylvania. It took effect at Dec 13, 2007, 4:00 AM EST. It was in force for 14 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 12, 2007, 7:57 PM EST (00:57 UTC)
- In effect from
- Dec 13, 2007, 4:00 AM EST
- Expired
- Dec 13, 2007, 6:12 PM EST
- In force
- 14 hr
- Issued by
- NWS State College, PA
All 25 counties
Adams County, PA, Bedford County, PA, Blair County, PA, Cambria County, PA, Cameron County, PA, Clinton 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, Perry County, PA, Potter County, PA, Somerset County, PA, Sullivan County, PA, Tioga County, PA, Warren County, PA, York County, PA
The radar
The State College radar (KCCX), 36 km from the middle of the area, began a volume at 01:01 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 00:00Z, 1.0 hours before the alert went out and 197 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
- 1201 m above ground
- 0-6 km bulk shear
- 79 kt
- 0-1 km storm-relative helicity
- -133 m²/s²
- 0-3 km storm-relative helicity
- 162 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 130057 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 757 PM EST WED DEC 12 2007 ...SIGNIFICANT SNOW AND ICE EXPECTED ON THURSDAY... .A LOW PRESSURE SYSTEM WILL MOVE NORTHEAST FROM THE TENNESSEE VALLEY AND INTO THE SOUTHERN MID-ATLANTIC STATES ON THURSDAY. HEAVY SNOW IS LIKELY OVER THE NORTHERN MOUNTAINS OF PENNSYLVANIA... WITH A MIXTURE OF SLEET AND SNOW BETWEEN INTERSTATE 80 AND THE TURNPIKE...TRANSITIONING TO A SLOPPY COMBINATION OF SNOW AND SLEET CHANGING TO FREEZING RAIN SOUTH OF THE TURNPIKE. TRAVEL WILL BE SIGNIFICANTLY IMPACTED BEGINNING EARLY THURSDAY MORNING AND CONTINUING THROUGH THE LATE AFTERNOON. PAZ033-130900- /O.UPG.KCTP.WW.Y.0012.071213T0900Z-071214T0300Z/ /O.NEW.KCTP.WS.W.0005.071213T0900Z-071214T0300Z/ SOMERSET- 757 PM EST WED DEC 12 2007 ...WINTER STORM WARNING IN EFFECT FROM 4 AM TO 10 PM EST THURSDAY... ...WINTER WEATHER ADVISORY NO LONGER IN EFFECT... THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 4 AM TO 10 PM EST THURSDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. A WINTRY MIXTURE OF SNOW AND SLEET WILL OVERSPREAD THE REGION BETWEEN 4 AM AND 5 AM THURSDAY...AND INCREASE IN INTENSITY THROUGH THE LATE MORNING AND EARLY AFTERNOON HOURS BEFORE TAPERING OFF TO FREEZING DRIZZLE BY LATE IN THE DAY. SNOW ACCUMULATIONS DURING THE FIRST SEVERAL HOURS OF THE STORM ARE EXPECTED TO RANGE BETWEEN 1 AND 3 INCHES BEFORE THE CHANGEOVER TO MAINLY SLEET AND FREEZING FROM LATE MORNING ON. LOCALLY UP TO 4 INCHES COULD FALL PRIOR TO MIXING WITH SLEET AND FREEZING RAIN ACROSS THE NORTHEAST PART OF SOMERSET COUNTY...NEAR THE TOWNS OF WINDBER...CENTRAL CITY AND OGLETOWN. THE FREEZING RAIN WILL RESULT IN AN ICE ACCUMULATION OF BETWEEN ONE QUARTER TO ONE HALF OF AN INCH. THE GREATEST THREAT FOR HEAVY FREEZING RAIN WILL BE ACROSS THE SOUTHERN AND WESTERN PORTIONS OF SOMERSET COUNTY. THIS AMOUNT OF ICE COULD LEAD TO DOWNED TREE LIMBS AND SCATTERED POWER OUTAGES. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE 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. $$ PAZ004>006-010>012-037-041-042-130900- /O.UPG.KCTP.WS.A.0009.071213T1100Z-071214T0300Z/ /O.NEW.KCTP.WS.W.0005.071213T1100Z-071214T0300Z/ WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-TIOGA- NORTHERN LYCOMING-SULLIVAN- 757 PM EST WED DEC 12 2007 ...WINTER STORM WARNING IN EFFECT FROM 6 AM TO 10 PM EST THURSDAY... ...WINTER STORM WATCH NO LONGER IN EFFECT... THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 6 AM TO 10 PM EST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. SNOW WILL OVERSPREAD THE REGION FROM THE SOUTHWEST AROUND SUNRISE THURSDAY...AND INCREASE IN INTENSITY...BECOMING HEAVY AT TIMES THROUGH THE LATE MORNING AND EARLY AFTERNOON HOURS BEFORE GRADUALLY TAPERING OFF TO INTERMITTENT LIGHT SNOW OR FREEZING DRIZZLE THURSDAY NIGHT. THE SNOW MAY ALSO MIX WITH SLEET AT TIMES DURING THE DAY. SNOW AMOUNTS OF 5 TO 8 INCHES ARE LIKELY BY LATE THURSDAY...WITH THE HIGHER AMOUNTS EXPECTED NEAR AND TO THE NORTH OF ROUTE 6...WHERE LESS SLEET IS EXPECTED. ACROSS THE CENTRAL MOUNTAINS...THE MIXTURE WITH SLEET WILL IS EXPECTED TO CUT DOWN ON ACCUMULATIONS...BUT LESS OF A MIX WITH SLEET WOULD RESULT IN SNOW AMOUNTS EXCEEDING 6 INCHES. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED. $$ PAZ034>036-064>066-130900- /O.CON.KCTP.WW.Y.0012.071213T0900Z-071214T0300Z/ BEDFORD-FULTON-FRANKLIN-ADAMS-YORK-LANCASTER- 757 PM EST WED DEC 12 2007 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 10 PM EST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 10 PM EST THURSDAY. A WINTRY MIXTURE OF SNOW AND SLEET WILL OVERSPREAD THE REGION BETWEEN 4 AM AND 6 AM THURSDAY...AND INCREASE IN INTENSITY THROUGH THE LATE MORNING AND AFTERNOON HOURS BEFORE GRADUALLY TAPERING OFF TO LIGHT DRIZZLE OR AREAS OF FREEZING DRIZZLE LATE THURSDAY. ROADWAYS WILL BE QUICKLY IMPACTED...AS AIR AND SURFACE TEMPERATURES QUICKLY FALL INTO THE UPPER 20S TO LOWER 30S AT THE ONSET OF THE PRECIPITATION AND REMAIN THERE THROUGHOUT THE DAY. THE MIXTURE OF SNOW AND SLEET WILL ACCUMULATE UP TO 2 INCHES IN THE MORNING BEFORE MIXING WITH AND POSSIBLY CHANGE TO FREEZING RAIN BY AFTERNOON. ALTHOUGH EXCESSIVE ICING IS NOT ANTICIPATED AT THIS TIME...BETWEEN ONE...AND TWO TENTHS OF AN INCH OF ICE ACCRETION IS LIKELY BY THURSDAY AFTERNOON...MAINLY SOUTH OF THE TURNPIKE. PRECIPITATION WILL QUICKLY WIND DOWN AFTER 3PM THURSDAY AFTERNOON AND FALL EITHER AS DRIZZLE OR FREEZING DRIZZLE WITH TEMPERATURES SLOWLY RISING TO BETWEEN 32 AND 35 DEGREES. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES. MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. $$ PAZ017>019-024>028-045-046-049>053-056>059-063-130900- /O.CON.KCTP.WW.Y.0012.071213T1000Z-071214T0300Z/ CLEARFIELD-NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR- HUNTINGDON-MIFFLIN-JUNIATA-SOUTHERN CLINTON-SOUTHERN LYCOMING- UNION-SNYDER-MONTOUR-NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN- SCHUYLKILL-LEBANON-CUMBERLAND- 757 PM EST WED DEC 12 2007 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 10 PM EST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 10 PM EST THURSDAY. SNOW AND SLEET WILL OVERSPREAD THE REGION AROUND OR SHORTLY AFTER SUNRISE THURSDAY...AND INCREASE IN INTENSITY THROUGH THE LATE MORNING AND AFTERNOON HOURS BEFORE GRADUALLY TAPERING OFF THURSDAY NIGHT. SEVERAL INCHES OF SNOW AND SLEET ACCUMULATION CAN BE EXPECTED BY EARLY THURSDAY AFTERNOON...PERHAPS ENDING AS A BRIEF PERIOD OF FREEZING RAIN OR FREEZING DRIZZLE IN SOME AREAS. SNOW AND SLEET ACCUMULATIONS BETWEEN 3 AND 5 INCHES ARE EXPECTED IN THE ADVISORY AREA. A CHANGEOVER TO SLEET A FEW HOURS SOONER WOULD HOLD DOWN THE ACCUMULATIONS BY INCH OR SO. TRAVEL WILL QUICKLY BECOME HAZARDOUS THURSDAY MORNING AFTER THE ONSET OF PRECIPITATION. THE PRECIPITATION WILL TAPER OFF IN MOST AREAS AFTER 2 PM. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES. MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. $$ LAMBERT/RADZANOWSKI/CRUZ
5 follow-up statements
000 WWUS41 KCTP 130940 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 440 AM EST THU DEC 13 2007 ...SIGNIFICANT SNOW AND ICE EXPECTED TODAY... .A LOW PRESSURE SYSTEM WILL MOVE ACROSS THE MID-ATLANTIC STATES TODAY. HEAVY SNOW IS LIKELY OVER THE NORTHERN MOUNTAINS OF PENNSYLVANIA...WITH A MIXTURE OF SLEET AND SNOW BETWEEN INTERSTATE 80 AND ROUTE 22...AND MAINLY SLEET AND FREEZING RAIN TO THE SOUTH OF ROUTE 22. TRAVEL WILL BE SIGNIFICANTLY IMPACTED BEGINNING EARLY THIS MORNING AND CONTINUING THROUGH THE EARLY EVENING. PAZ033-131745- /O.CON.KCTP.WS.W.0005.000000T0000Z-071214T0300Z/ SOMERSET- 440 AM EST THU DEC 13 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING. A WINTRY MIX OF SNOW...SLEET AND FREEZING RAIN WILL OVERSPREAD THE REGION BY SUNRISE. THE PRECIPITATION WILL BECOME MAINLY FREEZING RAIN BY NOON...AND SHOULD INCREASE IN INTENSITY THROUGH THE LATE MORNING AND EARLY AFTERNOON HOURS. IT WILL TAPER OFF TO FREEZING DRIZZLE OR SCATTERED SNOW SHOWERS BY LATE IN THE DAY. SNOW AND SLEET ACCUMULATIONS DURING THE FIRST SEVERAL HOURS OF THE STORM ARE EXPECTED TO RANGE BETWEEN 1 AND 2 INCHES BEFORE THE CHANGEOVER TO MAINLY FREEZING RAIN. THE FREEZING RAIN WILL RESULT IN AN ICE ACCUMULATION OF BETWEEN ONE QUARTER AND ONE HALF OF AN INCH. THIS AMOUNT OF ICE COULD LEAD TO DOWNED TREE LIMBS AND SCATTERED POWER OUTAGES...ESPECIALLY AS THE WEST WINDS KICK IN THIS EVENING. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE 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. $$ PAZ004>006-010>012-037-041-042-131745- /O.CON.KCTP.WS.W.0005.071213T1100Z-071214T0300Z/ WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-TIOGA- NORTHERN LYCOMING-SULLIVAN- 440 AM EST THU DEC 13 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING. SNOW WILL OVERSPREAD THE REGION FROM THE SOUTHWEST EARLY THIS MORNING...AND INCREASE IN INTENSITY...BECOMING HEAVY AT TIMES THROUGH THE LATE MORNING AND EARLY AFTERNOON HOURS. IT WILL TAPER OFF TO INTERMITTENT LIGHT SNOW OR FREEZING DRIZZLE EARLY TONIGHT. THE SNOW MAY ALSO MIX WITH SLEET AT TIMES DURING THE DAY. SNOW AMOUNTS OF 4 TO 8 INCHES ARE LIKELY BY LATE THURSDAY...WITH THE HIGHER AMOUNTS EXPECTED NEAR COUDERSPORT...WELLSBORO AND LAPORTE. THE LOWER AMOUNTS WILL OCCUR WHERE MORE SLEET MIXES IN...WHICH IS EXPECTED TO BE WEST OF BRADFORD...AND SOUTH OF EMPORIUM AND RENOVO. THIS AMOUNT OF SNOW AND SLEET WILL CREATE TREACHEROUS TRAVEL CONDITIONS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED. $$ PAZ034>036-064>066-131745- /O.CON.KCTP.WW.Y.0012.000000T0000Z-071214T0300Z/ BEDFORD-FULTON-FRANKLIN-ADAMS-YORK-LANCASTER- 440 AM EST THU DEC 13 2007 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING. A WINTRY MIXTURE OF SLEET AND FREEZING RAIN WILL OVERSPREAD THE REGION EARLY THIS MORNING...AND A LITTLE SNOW COULD FALL AS WELL. THE PRECIPITATION WILL INCREASE IN INTENSITY THROUGH THE LATE MORNING AND AFTERNOON HOURS...TURNING TO MAINLY FREEZING RAIN THIS AFTERNOON. IT COULD TURN TO PLAIN RAIN AS SURFACE TEMPERATURES ARE EXPECTED TO NUDGE JUST ABOVE FREEZING IN MOST LOCATIONS...ESPECIALLY ALONG THE MASON-DIXON LINE. THE MIXTURE OF SNOW AND SLEET WILL ACCUMULATE AN INCH OR SO IN THE MORNING BEFORE THE CHANGE TO MAINLY FREEZING RAIN. ICE ACCRETIONS COULD REACH UP TO ONE-QUARTER OF AN INCH IN SPOTS...BUT MOST LOCATIONS WILL GET LESS OF A GLAZE THAN THAT. THE PRECIPITATION WILL TAPER OFF TO LIGHT DRIZZLE OR AREAS OF FREEZING DRIZZLE LATE THURSDAY. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES. MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. $$ PAZ017>019-024>028-045-046-049>053-056>059-063-131745- /O.CON.KCTP.WW.Y.0012.071213T1000Z-071214T0300Z/ CLEARFIELD-NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR- HUNTINGDON-MIFFLIN-JUNIATA-SOUTHERN CLINTON-SOUTHERN LYCOMING- UNION-SNYDER-MONTOUR-NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN- SCHUYLKILL-LEBANON-CUMBERLAND- 440 AM EST THU DEC 13 2007 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING. SNOW AND SLEET WILL OVERSPREAD THE REGION THIS MORNING...AND INCREASE IN INTENSITY THROUGH THE LATE MORNING AND AFTERNOON HOURS. SLEET MAY BECOME THE MAIN PRECIPITATION TYPE DURING MIDDAY...BUT FREEZING RAIN SHOULD ALSO MIX IN LATER TODAY...ESPECIALLY SOUTH OF STATE COLLEGE AND LEWISTOWN. 2 TO 4 INCHES OF SNOW AND SLEET CAN BE EXPECTED BY EARLY THURSDAY AFTERNOON. IN AREAS WHERE MORE SLEET AND FREEZING RAIN FALLS...THE ACCUMULATIONS WOULD BE LOWER...PERHAPS CONSIDERABLY LOWER. TRAVEL WILL QUICKLY BECOME HAZARDOUS THIS MORNING...AS THE HEAVY MIX OF PRECIPITATION WILL CREATE ICY ROADS. THE PRECIPITATION WILL TAPER OFF LATE THIS AFTERNOON. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES. MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. $$ DANGELO/MARTIN
000 WWUS41 KCTP 131341 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 841 AM EST THU DEC 13 2007 ...SIGNIFICANT SNOW AND ICE EXPECTED TODAY... .A LOW PRESSURE SYSTEM WILL MOVE ACROSS THE MID-ATLANTIC STATES TODAY. HEAVY SNOW IS LIKELY OVER THE NORTHERN MOUNTAINS OF PENNSYLVANIA...WITH A MIXTURE OF SLEET AND SNOW BETWEEN INTERSTATE 80 AND ROUTE 22...AND MAINLY SLEET AND FREEZING RAIN TO THE SOUTH OF ROUTE 22. TRAVEL WILL BE SIGNIFICANTLY IMPACTED BEGINNING EARLY THIS MORNING AND CONTINUING THROUGH THE EARLY EVENING. PAZ034>036-064>066-132145- /O.UPG.KCTP.WW.Y.0012.000000T0000Z-071214T0300Z/ /O.EXA.KCTP.WS.W.0005.000000T0000Z-071214T0300Z/ BEDFORD-FULTON-FRANKLIN-ADAMS-YORK-LANCASTER- 841 AM EST THU DEC 13 2007 ...WINTER STORM WARNING IN EFFECT UNTIL 10 PM EST THIS EVENING... ...WINTER WEATHER ADVISORY NO LONGER IN EFFECT... THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT UNTIL 10 PM EST THIS EVENING. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. FREEZING RAIN MIXED WITH OCCASIONAL SLEET HAS OVERSPREAD THE REGION THIS MORNING...FALLING MODERATELY TO HEAVILY AT TIMES. WHILE MORE SLEET IS EXPECTED TO MIX IN LATER THIS MORNING...A PERIOD OF SIGNIFICANT ICING IS NOW IMMINENT...AND SO THE WINTER WEATHER ADVISORY HAS BEEN UPGRADED FOR A WINTER STORM WARNING. THE PRECIPITATION WILL INCREASE IN INTENSITY THROUGH THE LATE MORNING AND AFTERNOON HOURS...PERHAPS TURNING TO PLAIN RAIN NEAR THE MARYLAND BORDER AS SURFACE TEMPERATURES APPROACH FREEZING ALONG THE MASON- DIXON LINE. ICE ACCRETIONS WILL EXCEED ONE-QUARTER OF AN INCH IN MANY LOCATIONS. NORTHERN COUNTY LOCATIONS MAY SEE A SLEET ACCUMULATION OF AROUND ONE INCH BY THIS AFTERNOON AS WELL. THE PRECIPITATION WILL TAPER OFF TO LIGHT DRIZZLE OR AREAS OF FREEZING DRIZZLE LATE TODAY. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE 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. $$ PAZ004>006-010>012-033-037-041-042-132145- /O.CON.KCTP.WS.W.0005.000000T0000Z-071214T0300Z/ WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-SOMERSET-TIOGA- NORTHERN LYCOMING-SULLIVAN- 841 AM EST THU DEC 13 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING. A WINTRY MIX OF SNOW...SLEET AND FREEZING RAIN WILL OVERSPREAD THE REGION BY SUNRISE. THE PRECIPITATION WILL BECOME MAINLY FREEZING RAIN BY NOON...AND SHOULD INCREASE IN INTENSITY THROUGH THE LATE MORNING AND EARLY AFTERNOON HOURS. IT WILL TAPER OFF TO FREEZING DRIZZLE OR SCATTERED SNOW SHOWERS BY LATE IN THE DAY. SNOW AND SLEET ACCUMULATIONS DURING THE FIRST SEVERAL HOURS OF THE STORM ARE EXPECTED TO RANGE BETWEEN 1 AND 2 INCHES BEFORE THE CHANGEOVER TO MAINLY FREEZING RAIN. THE FREEZING RAIN WILL RESULT IN AN ICE ACCUMULATION OF BETWEEN ONE QUARTER AND ONE HALF OF AN INCH. THIS AMOUNT OF ICE COULD LEAD TO DOWNED TREE LIMBS AND SCATTERED POWER OUTAGES... ESPECIALLY AS THE WEST WINDS KICK IN THIS EVENING. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED. $$ PAZ017>019-024>028-045-046-049>053-056>059-063-132145- /O.CON.KCTP.WW.Y.0012.000000T0000Z-071214T0300Z/ CLEARFIELD-NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR- HUNTINGDON-MIFFLIN-JUNIATA-SOUTHERN CLINTON-SOUTHERN LYCOMING- UNION-SNYDER-MONTOUR-NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN- SCHUYLKILL-LEBANON-CUMBERLAND- 841 AM EST THU DEC 13 2007 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING. SNOW AND SLEET WILL OVERSPREAD THE REGION THIS MORNING...AND INCREASE IN INTENSITY THROUGH THE LATE MORNING AND AFTERNOON HOURS. SLEET MAY BECOME THE MAIN PRECIPITATION TYPE DURING MIDDAY...BUT FREEZING RAIN SHOULD ALSO MIX IN LATER TODAY... ESPECIALLY SOUTH OF STATE COLLEGE AND LEWISTOWN. 2 TO 4 INCHES OF SNOW AND SLEET CAN BE EXPECTED BY EARLY THURSDAY AFTERNOON. IN AREAS WHERE MORE SLEET AND FREEZING RAIN FALLS...THE ACCUMULATIONS WOULD BE LOWER...PERHAPS CONSIDERABLY LOWER. TRAVEL WILL QUICKLY BECOME HAZARDOUS THIS MORNING...AS THE HEAVY MIX OF PRECIPITATION WILL CREATE ICY ROADS. THE PRECIPITATION WILL TAPER OFF LATE THIS AFTERNOON. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES. MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. $$ DEVOIR
000 WWUS41 KCTP 131558 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 1058 AM EST THU DEC 13 2007 ...SIGNIFICANT SNOW AND ICE EXPECTED TODAY... .A LOW PRESSURE SYSTEM WILL MOVE ACROSS THE MID-ATLANTIC STATES TODAY. HEAVY SNOW IS LIKELY OVER THE NORTHERN MOUNTAINS OF PENNSYLVANIA...WITH A MIXTURE OF SLEET AND SNOW BETWEEN INTERSTATE 80 AND ROUTE 22...AND MAINLY SLEET AND FREEZING RAIN TO THE SOUTH OF ROUTE 22. TRAVEL WILL BE SIGNIFICANTLY IMPACTED BEGINNING EARLY THIS MORNING AND CONTINUING THROUGH THE EARLY EVENING. PAZ024>028-056-057-059-063-140300- /O.UPG.KCTP.WW.Y.0012.000000T0000Z-071214T0300Z/ /O.EXA.KCTP.WS.W.0005.000000T0000Z-071214T0300Z/ CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-PERRY-DAUPHIN-LEBANON- CUMBERLAND- 1058 AM EST THU DEC 13 2007 ...WINTER STORM WARNING IN EFFECT UNTIL 10 PM EST THIS EVENING... ...WINTER WEATHER ADVISORY NO LONGER IN EFFECT... THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT UNTIL 10 PM EST THIS EVENING. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. A MIXTURE OF FREEZING RAIN AND OCCASIONAL SLEET WILL CONTINUE ACROSS THE AREA THROUGH MID AFTERNOON. SIGNIFICANT ICE ACCUMULATIONS EXCEEDING ONE QUARTER INCH WILL ACCRETE ON OUTDOOR OBJECTS AND TREES...ESPECIALLY ACROSS SOUTHERN PORTIONS OF CAMBRIA...BLAIR...HUNTINGDON...CUMBERLAND...DAUPHIN AND LEBANON COUNTIES. NORTHERN PORTIONS OF THESE COUNTIES ALONG WITH PERRY... JUNIATA AND MIFFLIN COUNTIES SHOULD SEE MORE SLEET...WITH ACCUMULATIONS UP TO 2 OR 3 INCHES IN THOSE AREAS. THE PRECIPITATION WILL TAPER OFF LATE THIS AFTERNOON AND EVENING AS A PERIOD OF FREEZING DRIZZLE. TRAVEL WILL BE HAZARDOUS ON UNTREATED ROADWAYS. THE WEIGHT OF ACCUMULATED ICE COULD CAUSE TREE BRANCHES AND POWER LINES TO FALL. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE 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. $$ PAZ004>006-010>012-037-041-042-140300- /O.CON.KCTP.WS.W.0005.000000T0000Z-071214T0300Z/ WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-TIOGA- NORTHERN LYCOMING-SULLIVAN- 1058 AM EST THU DEC 13 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING. SNOW WILL CONTINUE...HEAVY AT TIMES THROUGH THE EARLY AFTERNOON HOURS...BEFORE GRADUALLY TAPERING OFF TO INTERMITTENT LIGHT SNOW OR FREEZING DRIZZLE THIS EVENING. THE SNOW MAY ALSO MIX WITH SLEET AT TIMES DURING THE DAY. SNOW AMOUNTS OF 5 TO 8 INCHES ARE LIKELY BY LATE AFTERNOON...WITH THE HIGHER AMOUNTS EXPECTED NEAR AND TO THE NORTH OF ROUTE 6...WHERE LESS SLEET IS EXPECTED. ACROSS THE CENTRAL MOUNTAINS...THE MIXTURE WITH SLEET WILL IS EXPECTED TO CUT DOWN ON ACCUMULATIONS...BUT LESS OF A MIX WITH SLEET WOULD RESULT IN SNOW AMOUNTS EXCEEDING 6 INCHES. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE 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. $$ PAZ033>036-064>066-140300- /O.CON.KCTP.WS.W.0005.000000T0000Z-071214T0300Z/ SOMERSET-BEDFORD-FULTON-FRANKLIN-ADAMS-YORK-LANCASTER- 1058 AM EST THU DEC 13 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING. FREEZING RAIN AND OCCASIONAL SLEET WILL CONTINUE INTO THIS AFTERNOON. THE PRECIPITATION MAY EVEN CHANGE TO PLAIN RAIN FOR A TIME NEAR THE MARYLAND BORDER. SIGNIFICANT ICE ACCUMULATIONS EXCEEDING ONE QUARTER INCH WILL ACCRETE ON OUTDOOR OBJECTS AND TREES. THIS AMOUNT OF ICE COULD LEAD TO DOWNED TREE LIMBS AND SCATTERED POWER OUTAGES...ESPECIALLY AS THE WEST WINDS KICK IN THIS EVENING. IT WILL TAPER OFF TO FREEZING DRIZZLE OR SCATTERED SNOW SHOWERS BY LATE IN THE DAY. TRAVEL WILL REMAIN HAZARDOUS ON UNTREATED ROADWAYS THROUGH THIS AFTERNOON. THE PRECIPITATION WILL TAPER OFF TO LIGHT FREEZING DRIZZLE LATE THIS AFTERNOON AND EVENING. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED. $$ PAZ017>019-045-046-049>053-058-140300- /O.CON.KCTP.WW.Y.0012.000000T0000Z-071214T0300Z/ CLEARFIELD-NORTHERN CENTRE-SOUTHERN CENTRE-SOUTHERN CLINTON- SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-NORTHUMBERLAND-COLUMBIA- SCHUYLKILL- 1058 AM EST THU DEC 13 2007 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING. SNOW AND SLEET WILL CONTINUE INTO THE AFTERNOON HOURS...WITH SLEET REMAINING THE MAIN PRECIPITATION TYPE. FREEZING RAIN WILL ALSO BE MIXED IN AT TIMES...ESPECIALLY SOUTH OF STATE COLLEGE AND LEWISTOWN. 2 TO 4 INCHES OF SNOW AND SLEET CAN BE EXPECTED BY EARLY MID AFTERNOON. IN AREAS WHERE MORE SLEET AND FREEZING RAIN FALLS...THE ACCUMULATIONS WOULD BE LOWER...PERHAPS CONSIDERABLY LOWER. TRAVEL WILL REMAIN HAZARDOUS ON UNTREATED ROADWAYS THROUGH THIS AFTERNOON. THE PRECIPITATION WILL TAPER OFF TO LIGHT FREEZING DRIZZLE LATE THIS AFTERNOON AND EVENING. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES. MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. $$ DEVOIR
000 WWUS41 KCTP 131824 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 124 PM EST THU DEC 13 2007 ...SIGNIFICANT SNOW AND ICE EXPECTED TODAY... .A LOW PRESSURE SYSTEM WILL MOVE ACROSS THE MID-ATLANTIC STATES TODAY. HEAVY SNOW IS LIKELY OVER THE NORTHERN MOUNTAINS OF PENNSYLVANIA...WITH A MIXTURE OF SLEET AND SNOW BETWEEN INTERSTATE 80 AND ROUTE 22...AND MAINLY SLEET AND FREEZING RAIN TO THE SOUTH OF ROUTE 22. TRAVEL WILL BE SIGNIFICANTLY IMPACTED THROUGH THE EARLY EVENING. PAZ004>006-010>012-037-041-042-140300- /O.CON.KCTP.WS.W.0005.000000T0000Z-071214T0300Z/ WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-TIOGA- NORTHERN LYCOMING-SULLIVAN- 124 PM EST THU DEC 13 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING. SNOW WILL CONTINUE...HEAVY AT TIMES THROUGH THE EARLY AFTERNOON HOURS...BEFORE GRADUALLY TAPERING OFF TO INTERMITTENT LIGHT SNOW OR FREEZING DRIZZLE THIS EVENING. THE SNOW MAY ALSO MIX WITH SLEET AT TIMES DURING THE DAY. SNOW AMOUNTS OF 5 TO 8 INCHES ARE LIKELY BY LATE AFTERNOON...WITH THE HIGHER AMOUNTS EXPECTED NEAR AND TO THE NORTH OF ROUTE 6... WHERE LESS SLEET IS EXPECTED. ACROSS THE CENTRAL MOUNTAINS...THE MIXTURE WITH SLEET WILL IS EXPECTED TO CUT DOWN ON ACCUMULATIONS...BUT LESS OF A MIX WITH SLEET WOULD RESULT IN SNOW AMOUNTS EXCEEDING 6 INCHES. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED. $$ PAZ024>028-033>036-056-057-059-063>066-140300- /O.CON.KCTP.WS.W.0005.000000T0000Z-071214T0300Z/ CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-SOMERSET-BEDFORD-FULTON- FRANKLIN-PERRY-DAUPHIN-LEBANON-CUMBERLAND-ADAMS-YORK-LANCASTER- 124 PM EST THU DEC 13 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING. A MIXTURE OF FREEZING RAIN AND OCCASIONAL SLEET WILL CONTINUE ACROSS MOST OF THE AREA THROUGH MID AFTERNOON. SIGNIFICANT ICE ACCUMULATIONS EXCEEDING ONE QUARTER INCH WILL ACCRETE ON OUTDOOR OBJECTS AND TREES...ESPECIALLY ACROSS SOUTHERN PORTIONS OF CAMBRIA...BLAIR...HUNTINGDON...CUMBERLAND...DAUPHIN AND LEBANON COUNTIES. NORTHERN PORTIONS OF THESE COUNTIES ALONG WITH PERRY... JUNIATA AND MIFFLIN COUNTIES SHOULD SEE MORE SLEET...WITH ACCUMULATIONS UP TO 2 OR 3 INCHES IN THOSE AREAS. THE PRECIPITATION WILL TAPER OFF LATE THIS AFTERNOON AND EVENING AS A PERIOD OF FREEZING DRIZZLE. SOUTHERN PORTIONS OF YORK AND LANCASTER COUNTIES WILL HAVE A LULL IN THE PRECIPITATION EARLY THIS AFTERNOON. SHOWERS WILL REDEVELOP OVER THESE AREAS WITH MAINLY PLAIN RAIN FALLING OVER THE SOUTHERN HALF OF YORK AND LANCASTER COUNTIES THIS AFTERNOON...WHILE NORTHERN AREAS CONTINUE TO SEE AREAS OF FREEZING RAIN. TRAVEL WILL BE HAZARDOUS ON UNTREATED ROADWAYS. THE WEIGHT OF ACCUMULATED ICE COULD CAUSE TREE BRANCHES AND POWER LINES TO FALL. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED. THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE 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. $$ PAZ017>019-045-046-049>053-058-140300- /O.CON.KCTP.WW.Y.0012.000000T0000Z-071214T0300Z/ CLEARFIELD-NORTHERN CENTRE-SOUTHERN CENTRE-SOUTHERN CLINTON- SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-NORTHUMBERLAND-COLUMBIA- SCHUYLKILL- 124 PM EST THU DEC 13 2007 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING. SNOW AND SLEET WILL CONTINUE INTO THE MID AFTERNOON HOURS...WITH SLEET REMAINING THE DOMINANT PRECIPITATION TYPE. FREEZING RAIN WILL ALSO BE MIXED IN AT TIMES...ESPECIALLY SOUTH OF STATE COLLEGE AND LEWISTOWN. AN ADDITIONAL COATING TO ONE INCH OF ADDITIONAL INCH OF SNOW AND SLEET CAN IS EXPECTED BY MID AFTERNOON. IN AREAS WHERE MORE SLEET AND FREEZING RAIN FALLS...THE ACCUMULATIONS WOULD BE LOWER...PERHAPS CONSIDERABLY LOWER. TRAVEL WILL REMAIN HAZARDOUS ON UNTREATED ROADWAYS THROUGH THIS AFTERNOON. THE PRECIPITATION WILL TAPER OFF TO LIGHT FREEZING DRIZZLE LATE THIS AFTERNOON AND EVENING. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES. MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. $$ DEVOIR
000 WWUS41 KCTP 132312 WSWCTP URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE STATE COLLEGE PA 612 PM EST THU DEC 13 2007 PAZ004>006-010>012-024>028-033>037-041-042-056-057-059-063>066- 140015- /O.CAN.KCTP.WS.W.0005.000000T0000Z-071214T0300Z/ WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CAMBRIA-BLAIR- HUNTINGDON-MIFFLIN-JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-TIOGA- NORTHERN LYCOMING-SULLIVAN-PERRY-DAUPHIN-LEBANON-CUMBERLAND-ADAMS- YORK-LANCASTER- 612 PM EST THU DEC 13 2007 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS CANCELLED THE WINTER STORM WARNING. WINTRY PRECIPITATION HAS ENDED ACROSS CENTRAL PENNSYLVANIA. THEREFORE...THE WINTER STORM WARNING IS CANCELLED. $$ PAZ017>019-045-046-049>053-058-140015- /O.CAN.KCTP.WW.Y.0012.000000T0000Z-071214T0300Z/ CLEARFIELD-NORTHERN CENTRE-SOUTHERN CENTRE-SOUTHERN CLINTON- SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-NORTHUMBERLAND-COLUMBIA- SCHUYLKILL- 612 PM EST THU DEC 13 2007 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS CANCELLED THE WINTER WEATHER ADVISORY. WINTRY PRECIPITATION HAS ENDED ACROSS CENTRAL PENNSYLVANIA. THEREFORE...THE WINTER WEATHER ADVISORY IS CANCELLED. $$
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 12, 7:24 PM EST, 33 minutes earlier.
Area forecast discussion, Dec 12, 7:24 PM EST, 33 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 724 PM EST WED DEC 12 2007 .SYNOPSIS... COLD FRONT NOW STALLED JUST TO OUR SOUTH. COLD HIGH PRESSURE WILL BUILD IN ONLY BRIEFLY FROM THE UPPER MIDWEST. LOW PRESSURE WILL THEN RIDE ALONG THE BAROCLINIC ZONE AND BRING A MESSY WINTRY MIX OF PRECIP FOR THURSDAY. ANOTHER...MORE SIGNIFICANT...STORM LOOMS FOR SAT-SUN. NW FLOW SHOULD DOMINATE MON-TUES. && .NEAR TERM /UNTIL 11 PM THIS EVENING/... SFC HIGH PRESSURE OVER WISCONSIN BUILDING OVERNIGHT. MUCH COLDER AND DRIER AIR ALOFT ADVECTING ACROSS PA THIS EVENING. SFC DEWPOINTS NEAR 20 AT KBFD WITH TEMPS ALL ALONG MY NORTHERN TIER NEAR OR SLIGHTLY BELOW FREEZING CURRENTLY. THIS WILL HELP ACHIEVE SUB 32-DEGREE SFC AND ABOVE WET BULB TEMPS ON THURSDAY MAKING FOR A DIFFICULT TRAVEL DAY STATEWIDE. && .SHORT TERM /11 PM THIS EVENING THROUGH 6 PM THURSDAY/... SREF MEMBERS CONTINUE TO SHOW WIDE RANGE OF PTYPES FROM NORTH TO SOUTH ACROSS CENTRAL PA. MEAN SREF QPF HAS INCREASED FOR THE THURSDAY EVENING TO SLIGHTLY OVER .60. SCOURING OF ALL ENSEMBLE DATA AND DETERMINISTIC RUNS GIVING ME SUB-WARNING CRITERIA MIXTURE OF SNOW AND SLEET...WITH SOME FREEZING RAIN POSSIBLE MAINLY SOUTH OF THE TURNPIKE...HAVE THEREFORE GONE WITH WINTER WEATHER ADVISORIES FROM ROUGHLY DAYBREAK THURSDAY THROUGH THURSDAY EVENING...WITH SNOW AND SLEET ACCUMULATIONS RANGING FROM 2 TO 5 INCHES ACROSS THE CENTRAL THIRD OF PA...AND A COATING TO UP TO 2 INCHES ACROSS THE SOUTHERN THIRD OF PA. UP NORTH...SREF PTYPES AND FORECAST SOUNDING ANALYSES INDICATE A NEARLY ALL SNOW EVENT...AND WITH QPF REMAINING IN THE .6 TO .7 RANGE...WARNING CRITERIA SNOWFALL IS STILL A HIGHLY PROBABLE OUTCOME...BUT NOT YET CERTAIN. HAVE OPTED TO HOLD ONTO THE WINTER STORM WATCH FOR THE TIME BEING TO ALLOW THIS EVENINGS SHIFT TO LOOK AT ADDITIONAL DATA BEFORE MAKING THE CALL. A 6 TO 8 HOUR PERIOD OF MODERATE TO HEAVY PRECIPITATION WILL IMPACT CENTRAL PENNSYLVANIA ON THURSDAY. SLEET APPEARS TO BE THE FAVORED PTYPE ACROSS THE CENTRAL AND SOUTH...WITH SNOW TO THE NORTH AND A POSSIBLE TRANSITION TO PLAIN FREEZING RAIN BY AFTERNOON ACROSS THE FAR SOUTH (SOUTH OF THE PA TURNPIKE). ICE ACCRETION IS EXPECTED TO BE ONE TENTH OF AN INCH OR LESS IN THESE AREAS. THIS SYSTEM WILL PRODUCE WINTRY PRECIPITATION AT A MOST INOPPORTUNE TIME FOR DECISIONS TO BE MADE ON SCHOOL/ BUSINESS/DAYCARE CANCELLATIONS...AS THE GREATEST ROAD IMPACTS WILL OCCUR GENERALLY AFTER 8 AM AND LAST THROUGH 2 OR 3 PM. SURFACE TEMPERATURES IN THE MID TO UPPER 20S WILL PREVENT MUCH MELTING... ALTHOUGH FAR SOUTHERN PA NEAR THE MARYLAND BORDER MAY SEE SOME AREAS SNEAK JUST ABOVE FREEZING FOR A SHORT TIME THURSDAY AFTERNOON. && .LONG TERM /THURSDAY NIGHT THROUGH WEDNESDAY/... FRIDAY INTO SATURDAY SEEMS BENIGN AS LARGE AREA OF HIGH PRESSURE MOVE OVER NEW ENGLAND...SETTING THE STAGE FOR A SOURCE OF COLD POOL AHEAD OF THE NEXT STORM. THAT NEXT STORM IS FORECAST TO OCCUR OVER THE WEEKEND AND HAS SIGNIFICANT /SNOW/ POTENTIAL...AND DIMINISHING UNCERTAINTY WITH TIME. THAT IS...IT IS LOOKING MORE AND MORE LIKE WE WILL GET A STORM OF SOME NOTE SATURDAY INTO SUNDAY. LONG TERM GUIDANCE ALL DEPICT A MAJOR STORM COMING OUT OF THE DEEP SOUTH...RIGHT UP THE EAST COAST WITH SECONDARY COASTAL DEVELOPMENT LEADING TO THE POTENTIAL TO PRODUCE SIGNIFICANT SNOWS FOR CENTRAL PA. ENOUGH GUIDANCE IS SUGGESTING STORM POTENTIAL TO MAKE ME CONTINUE LIKELY POPS ON SATURDAY AND EVEN CATEGORICAL POPS FOR SAT NIGHT. NO CERTAINTIES EXCEPT THE OCCURRENCE OF PRECIP ARE THERE...BUT IF I AM CERTAIN OF ONE THING...LOOKING AT THE SYNOPTIC SET UP...A MAJORITY OF THE PCPN - IF NOT ALL OF IT - SHOULD BE IN THE FORM OF SNOW. MREF PLUMES SUGGEST A MAJORITY OF SNOW BUT POSSIBLE SNOW/ICE/RAIN MIX ACROSS THE SOUTHEAST. ADDED IN OVER ABOUT THE SERN QUARTER OF THE CWA. ONLY VISIBLE LIMITING FACTOR AT THIS POINT...ASIDE FROM A CHANGE IN TRACK TO SIG VARY PCPN TYPE...IS THE SPEED OF THE SYSTEM. ITS RELATIVELY FAST PROGRESS ACROSS THE REGION COULD LIMIT PCPN AMOUNTS. THE STORM SHOULD BE OVER WITH ON SUNDAY SOMETIME...MAYBE BEFORE NOON...MAYBE NOT. WRAP AROUND/CYCLONIC FLOW WILL KEEP CHC POPS IN THE NW FOR MONDAY THEN DRY FOR TUESDAY AND WEDNESDAY WITH BELOW NORMAL TEMPS. && .AVIATION /00Z THURSDAY THROUGH MONDAY/... EARLIER DISCUSSION SUMS UP SITUATION VERY WELL SO ONLY SOME SMALLER CHANGES WERE NEEDED. VFR CONDS WILL CONTINUE THROUGH THE EVENING WITH SFC HIGH PRESSURE BUILDING INTO PA. INCREASING MID/HIGH CLOUDS OVERNIGHT WL THICKEN AND LOWER TOWARD SUNRISE. VIS/CIGS WILL DETERIORATE EARLY AND QUICKLY TOMORROW AS A BROAD INFLUX OF MOISTURE ALOFT /FROM THE SW/ OVERRUNS A NEAR TO SUB-FREEZING AIRMASS ENTRENCHED AT THE SFC. THIS WILL SET THE STAGE FOR A WINTRY MIX OF SNOW...SLEET AND FREEZING RAIN OVERSPREADING THE REGION FM SW TO NE STARING AROUND SUNRISE /12Z/. EXPECTING MORE SNOW/SLEET ACROSS THE NORTH WITH BETTER CHCS FOR A PROLONGED PERIOD OF ICING OVR THE SOUTHERN AIRFIELDS. BY THE MID TO LATE AFTN...PCPN MAY EVEN CHANGE OVER TO PLAIN RAIN CLOSE TO THE PA/MD BORDER. THIS SYS QUICKLY SLIDES ENEWD OFF THE NJ COAST TOMORROW NIGHT WITH WINTRY PCPN TAPERING OFF AROUND 06Z FRI. SCT UPSLOPE -SHSN ARE PSBL ACROSS THE WRN/NRN MTNS ON THE BACKSIDE OF THE DEPARTING SYS. HIGH PRESSURE WILL POP IN FOR ANOTHER BRIEF VISIT AT THE END OF THE WEEK/EARLY IN THE WEEKEND BEFORE ANOTHER...MORE POTENT STORM TAKES AIM FOR THE WEEKEND. MDLS STILL SUGGESTING THE POTENTIAL FOR A MAJOR EAST COAST WINTER STORM /ECWS/ FOR LATE SAT THRU SUNDAY WITH VERY POOR FLYING CONDITIONS. && .CTP WATCHES/WARNINGS/ADVISORIES... WINTER STORM WARNING FROM 6 AM TO 10 PM EST THURSDAY FOR PAZ004>006-010>012-037-041-042. WINTER WEATHER ADVISORY FROM 5 AM TO 10 PM EST THURSDAY FOR PAZ017>019-024>028-045-046-049>053-056>059-063. WINTER STORM WARNING FROM 4 AM TO 10 PM EST THURSDAY FOR PAZ033. WINTER WEATHER ADVISORY FROM 4 AM TO 10 PM EST THURSDAY FOR PAZ034>036-064>066. && SYNOPSIS...DANGELO NEAR TERM...DEVOIR SHORT TERM...DEVOIR LONG TERM...DANGELO/GARTNER AVIATION...RXR
Hazardous weather outlook, Dec 12, 3:19 PM EST, 4 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 319 PM EST WED DEC 12 2007 PAZ004>006-010>012-037-041-042-132030- WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-TIOGA- NORTHERN LYCOMING-SULLIVAN- 319 PM EST WED DEC 12 2007 ...WINTER STORM WATCH IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...THIS AFTERNOON AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY 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. IN ADDITION...HEAVY SNOW IS POSSIBLE SATURDAY INTO SUNDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. PAZ017>019-024>028-045-046-049>053-056>059-063-132030- CLEARFIELD-NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON- MIFFLIN-JUNIATA-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER- MONTOUR-NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON- CUMBERLAND- 319 PM EST WED DEC 12 2007 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TO 10 PM EST THURSDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...THIS AFTERNOON 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 WEATHER ADVISORY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV/STATECOLLEGE ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER WEATHER ADVISORY. IN ADDITION...HEAVY SNOW IS POSSIBLE SATURDAY INTO SUNDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. PAZ033>036-064>066-132030- SOMERSET-BEDFORD-FULTON-FRANKLIN-ADAMS-YORK-LANCASTER- 319 PM EST WED DEC 12 2007 ...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 10 PM EST THURSDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...THIS AFTERNOON 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 WEATHER ADVISORY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV/STATECOLLEGE ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER WEATHER ADVISORY. IN ADDITION...HEAVY SNOW IS POSSIBLE SATURDAY INTO SUNDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
Nearby
Winter Storm Warnings in Pennsylvania, 2007Every winter storm warning in 2007
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.