Alert archive / Pennsylvania / Winter Storm Warnings in 2017

Winter Storm Warning 1, NWS State College, PA

January 23, 20174 counties in Pennsylvania

NWS State College, PA issued this winter storm warning at Jan 23, 2017, 4:11 AM EST for 4 counties in Pennsylvania. It took effect at Jan 23, 2017, 1:00 PM EST. It was in force for 21 hr. 18 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jan 23, 2017, 4:11 AM EST (09:11 UTC)
In effect from
Jan 23, 2017, 1:00 PM EST
Expired
Jan 24, 2017, 10:00 AM EST
In force
21 hr
Issued by
NWS State College, PA

Counties Lycoming County, PA, Potter County, PA, Sullivan County, PA, Tioga County, PA

The radar

The State College radar (KCCX), 100 km from the middle of the area, began a volume at 09:13 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.

What was reported inside it

TimeReportWhereRemark
Jan 23, 8:47 PM ESTSNOW 2.5Laporte, PASNOW/SLEET MIX
Jan 24, 3:02 AM ESTSNOW 3.5Wellsboro, PA
Jan 24, 6:29 AM ESTSNOW 6Wellsboro, PA
Jan 24, 6:40 AM ESTSNOW 7.5Wellsboro, PA
Jan 24, 7:00 AM ESTSNOW 1.2Slate Run, PA
Jan 24, 7:00 AM ESTSNOW 4Brookside, PAVERY HEAVY WET SNOW
Jan 24, 7:00 AM ESTSNOW 4.2Lucullus, PA
Jan 24, 7:00 AM ESTSNOW 6.13 Wsw Germania, PA
Jan 24, 7:00 AM ESTSNOW 6.8Wellsboro, PA
Jan 24, 7:00 AM ESTSNOW 8.21 Wsw Olmsville, PA
Jan 24, 7:20 AM ESTSNOW 1.6Montgomery, PA
Jan 24, 7:40 AM ESTSNOW 6Knoxville, PA
Jan 24, 7:44 AM ESTSNOW 2.5Unityville, PA
Jan 24, 8:00 AM ESTSNOW 3.5Brookland, PA
Jan 24, 8:00 AM ESTSNOW 7Morris Run, PA
Jan 24, 8:30 AM ESTSNOW 4Cogan Station, PA
Jan 24, 9:00 AM ESTSNOW 7Mansfield, PA
Jan 24, 10:00 AM ESTSNOW 8.5Morris Run, PAUPDATED. ARMENIA MTN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 9.2 hours before the alert went out and 196 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.

Skew-T log-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 00:00Z on 2017-01-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 00:00Z on 2017-01-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
633 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

552 
WWUS41 KCTP 230911
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
411 AM EST MON JAN 23 2017

PAZ006-037-041-042-232115-
/O.UPG.KCTP.WS.A.0001.170123T1700Z-170124T1500Z/
/O.NEW.KCTP.WS.W.0001.170123T1800Z-170124T1500Z/
POTTER-TIOGA-NORTHERN LYCOMING-SULLIVAN-
INCLUDING THE CITIES OF COUDERSPORT, MANSFIELD, WELLSBORO, 
TROUT RUN, AND LAPORTE
411 AM EST MON JAN 23 2017

...WINTER STORM WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO
10 AM EST TUESDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
STORM WARNING FOR HEAVY WET SNOW...WHICH IS IN EFFECT FROM 1 PM 
THIS AFTERNOON TO 10 AM EST TUESDAY. THE WINTER STORM WATCH IS NO 
LONGER IN EFFECT.

* ACCUMULATIONS...6 TO 10 INCHES OF SNOW.

* TIMING...RAIN WILL DEVELOP THIS MORNING BEFORE MIXING WITH AND
  CHANGING TO SNOW THIS AFTERNOON. SNOW WILL FALL HEAVY AT TIMES
  INTO THE EVENING HOURS BEFORE TAPERING TO LIGHT SNOW AND SNOW
  SHOWERS AFTER MIDNIGHT.

* IMPACTS...SNOW ACCUMULATIONS WILL MAKE TRAVEL VERY HAZARDOUS.
  THE WEIGHT OF THE HEAVY WET SNOW COULD CAUSE TREE LIMBS TO FALL
  ON POWER LINES AND PRODUCE OUTAGES.

* WINDS...NORTHEAST 5 TO 15 MPH WITH GUSTS UP TO 30 MPH.

* TEMPERATURES...IN THE LOW TO MID 30S.

* GREATEST RISK FOR HEAVY SNOW IN THE HIGHER ELEVATIONS.

* LONGER COMMUTE TIMES MONDAY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

PAZ005-232115-
/O.UPG.KCTP.WS.A.0001.170123T1700Z-170124T1500Z/
/O.NEW.KCTP.WW.Y.0004.170123T2100Z-170124T1200Z/
MCKEAN-
INCLUDING THE CITY OF BRADFORD
411 AM EST MON JAN 23 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO
7 AM EST TUESDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
WEATHER ADVISORY FOR HEAVY WET SNOW AND LIGHT FREEZING RAIN OR 
DRIZZLE...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO 7 AM EST 
TUESDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* ACCUMULATIONS...SNOW ACCUMULATION OF 3 TO 5 INCHES...ALONG 
  WITH AROUND A TRACE OF ICE.

* TIMING...RAIN WILL DEVELOP THIS MORNING BEFORE MIXING WITH AND
  CHANGING TO SNOW THIS AFTERNOON. SNOW WILL FALL HEAVY AT TIMES
  INTO THE EVENING HOURS BEFORE TAPERING TO LIGHT SNOW AND SNOW
  SHOWERS AFTER MIDNIGHT. THERE COULD BE SOME LIGHT FREEZING RAIN
  OR DRIZZLE THIS EVENING.

* IMPACTS...SNOW ACCUMULATIONS WILL MAKE TRAVEL VERY HAZARDOUS.
  THE WEIGHT OF THE HEAVY WET SNOW COULD CAUSE TREE LIMBS TO FALL
  ON POWER LINES AND PRODUCE OUTAGES.

* WINDS...NORTHEAST 5 TO 15 MPH WITH GUSTS UP TO 25 MPH.

* TEMPERATURES...IN THE LOW TO MID 30S.

* GREATEST RISK FOR HEAVY SNOW IN THE HIGHER ELEVATIONS.

* LONGER COMMUTE TIMES MONDAY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

PAZ010>012-017-018-232115-
/O.NEW.KCTP.WW.Y.0004.170123T2100Z-170124T1200Z/
ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE-
INCLUDING THE CITIES OF ST. MARYS, RIDGWAY, EMPORIUM, RENOVO, 
DUBOIS, CLEARFIELD, AND PHILIPSBURG
411 AM EST MON JAN 23 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO
7 AM EST TUESDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
WEATHER ADVISORY FOR HEAVY WET SNOW...WHICH IS IN EFFECT FROM 4 
PM THIS AFTERNOON TO 7 AM EST TUESDAY.

* ACCUMULATIONS...SNOW ACCUMULATION OF 3 TO 5 INCHES.

* TIMING...RAIN WILL MORE STEADY THIS MORNING BEFORE MIXING WITH
  OR CHANGING TO SNOW THIS AFTERNOON. SNOW WILL FALL HEAVY AT
  TIMES INTO THE EVENING HOURS BEFORE TAPERING TO LIGHT SNOW AND 
  SNOW SHOWERS AFTER MIDNIGHT.

* IMPACTS...SNOW ACCUMULATIONS WILL MAKE TRAVEL VERY HAZARDOUS.
  THE WEIGHT OF THE HEAVY WET SNOW COULD CAUSE TREE LIMBS TO FALL
  ON POWER LINES AND PRODUCE OUTAGES.

* WINDS...NORTHEAST 5 TO 15 MPH WITH GUSTS UP TO 25 MPH.

* TEMPERATURES...IN THE LOW TO MID 30S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

LA CORTE
9 follow-up statements
554 
WWUS41 KCTP 231150
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
650 AM EST MON JAN 23 2017

PAZ006-037-041-042-240700-
/O.CON.KCTP.WS.W.0001.170123T1800Z-170124T1500Z/
POTTER-TIOGA-NORTHERN LYCOMING-SULLIVAN-
INCLUDING THE CITIES OF COUDERSPORT, MANSFIELD, WELLSBORO, 
TROUT RUN, AND LAPORTE
650 AM EST MON JAN 23 2017

...WINTER STORM WARNING REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 10 AM EST TUESDAY...

* ACCUMULATIONS...6 TO 10 INCHES OF SNOW.

* TIMING...RAIN WILL BECOME MORE STEADY THIS MORNING BEFORE 
MIXING WITH AND CHANGING TO SNOW THIS AFTERNOON. SNOW WILL FALL 
HEAVY AT TIMES INTO THE EVENING HOURS BEFORE TAPERING TO LIGHT 
SNOW AND SNOW SHOWERS AFTER MIDNIGHT.

* IMPACTS...SNOW ACCUMULATIONS WILL MAKE TRAVEL VERY HAZARDOUS.
  THE WEIGHT OF THE HEAVY WET SNOW COULD CAUSE TREE LIMBS TO FALL
  ON POWER LINES AND PRODUCE OUTAGES.

* WINDS...NORTHEAST 5 TO 15 MPH WITH GUSTS UP TO 30 MPH.

* TEMPERATURES...IN THE MID 30S.

* GREATEST RISK FOR HEAVY SNOW IN THE HIGHER ELEVATIONS.

* LONGER COMMUTE TIMES MONDAY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

PAZ005-010>012-017-018-240700-
/O.CON.KCTP.WW.Y.0004.170123T2100Z-170124T1200Z/
MCKEAN-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE-
INCLUDING THE CITIES OF BRADFORD, ST. MARYS, RIDGWAY, EMPORIUM, 
RENOVO, DUBOIS, CLEARFIELD, AND PHILIPSBURG
650 AM EST MON JAN 23 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 7 AM EST TUESDAY...

* ACCUMULATIONS...3 TO 5 INCHES OF SNOW.

* TIMING...RAIN WILL BECOME MORE STEADY THIS MORNING BEFORE 
MIXING WITH OR CHANGING TO SNOW THIS AFTERNOON. SNOW WILL FALL 
HEAVY AT TIMES INTO THE EVENING HOURS BEFORE TAPERING TO LIGHT 
SNOW AND SNOW SHOWERS AFTER MIDNIGHT.

* IMPACTS...SNOW ACCUMULATIONS WILL MAKE TRAVEL VERY HAZARDOUS.
  THE WEIGHT OF THE HEAVY WET SNOW COULD CAUSE TREE LIMBS TO FALL
  ON POWER LINES AND PRODUCE OUTAGES.

* WINDS...NORTHEAST 5 TO 15 MPH WITH GUSTS UP TO 25 MPH.

* TEMPERATURES...IN THE MID 30S.

* GREATEST RISK FOR HEAVY SNOW IN THE HIGHER ELEVATIONS.

* LONGER COMMUTE TIMES MONDAY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

LA CORTE
488 
WWUS41 KCTP 231916
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
216 PM EST MON JAN 23 2017

PAZ006-037-041-042-240730-
/O.CON.KCTP.WS.W.0001.000000T0000Z-170124T1500Z/
POTTER-TIOGA-NORTHERN LYCOMING-SULLIVAN-
INCLUDING THE CITIES OF COUDERSPORT, MANSFIELD, WELLSBORO, 
TROUT RUN, AND LAPORTE
216 PM EST MON JAN 23 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST
TUESDAY...

HAZARDOUS WEATHER...

* RAIN WILL MIX WITH AND CHANGE TO SNOW THIS THE EVENING. SNOW 
  WILL FALL HEAVY AT TIMES TONIGHT INTO TUESDAY MORNING AND MAY 
  MIX WITH SLEET BEFORE ENDING BY TUESDAY AFTERNOON. 

* SNOW ACCUMULATIONS 6 TO 12 INCHES. SNOW WILL BE HEAVY AND WET
  WITH MAXIMUM ACCUMULATIONS IN THE HIGHER ELEVATIONS. LOWER
  AMOUNTS EXPECTED IN THE VALLEYS. 

IMPACTS...

* DANGEROUS TRAVEL ON SNOW COVERED ROADS. LONGER COMMUTE TIMES 
  MONDAY EVENING AND TUESDAY MORNING. GUSTY WINDS AND HEAVY WET 
  SNOW MAY RESULT IN POWER OUTAGES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

PAZ024-033-240500-
/O.EXB.KCTP.WW.Y.0004.170123T1916Z-170124T0500Z/
CAMBRIA-SOMERSET-
INCLUDING THE CITIES OF JOHNSTOWN AND SOMERSET
216 PM EST MON JAN 23 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
WEATHER ADVISORY...WHICH IS IN EFFECT UNTIL MIDNIGHT EST TONIGHT.

HAZARDOUS WEATHER...

* RAIN WILL MIX WITH AND CHANGE TO SNOW AND SLEET THIS AFTERNOON
  AND CONTINUE HEAVY AT TIMES THROUGH THE EVENING. SNOW INTENSITY
  WILL DECREASE LATE TONIGHT INTO EARLY TUESDAY MORNING. 

* SNOW ACCUMULATIONS 2 TO 4 INCHES. SNOW WILL BE HEAVY AND WET
  WITH MAXIMUM AMOUNTS IN THE HIGHEST ELEVATIONS. LOWER AMOUNTS 
  EXPECTED IN THE VALLEYS. 

IMPACTS...

* HAZARDOUS TRAVEL ON SNOW COVERED ROADS. LONGER COMMUTE TIMES 
  MONDAY EVENING AND TUESDAY MORNING. GUSTY WINDS AND HEAVY WET 
  SNOW MAY RESULT IN ISOLATED POWER OUTAGES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

PAZ005-010>012-017-018-240730-
/O.CON.KCTP.WW.Y.0004.170123T2100Z-170124T1200Z/
MCKEAN-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE-
INCLUDING THE CITIES OF BRADFORD, ST. MARYS, RIDGWAY, EMPORIUM, 
RENOVO, DUBOIS, CLEARFIELD, AND PHILIPSBURG
216 PM EST MON JAN 23 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
TUESDAY...

HAZARDOUS WEATHER...

* RAIN WILL MIX WITH AND CHANGE TO SNOW LATER THIS AFTERNOON INTO
  THE EVENING. SNOW WILL FALL HEAVY AT TIMES TONIGHT INTO EARLY
  TUESDAY MORNING AND MAY MIX WITH SLEET BEFORE ENDING BY TUESDAY
  AFTERNOON.

* SNOW ACCUMULATIONS 3 TO 6 INCHES. SNOW WILL BE HEAVY AND WET
  WITH MAXIMUM AMOUNTS IN THE HIGHEST ELEVATIONS. LOWER AMOUNTS
  EXPECTED IN THE VALLEYS. 

IMPACTS...

* HAZARDOUS TRAVEL ON SNOW COVERED ROADS. LONGER COMMUTE TIMES 
  MONDAY EVENING AND TUESDAY MORNING. GUSTY WINDS AND HEAVY WET 
  SNOW MAY RESULT IN ISOLATED POWER OUTAGES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$
080 
WWUS41 KCTP 232122
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
422 PM EST MON JAN 23 2017

PAZ006-037-041-042-240930-
/O.CON.KCTP.WS.W.0001.000000T0000Z-170124T1500Z/
POTTER-TIOGA-NORTHERN LYCOMING-SULLIVAN-
INCLUDING THE CITIES OF COUDERSPORT, MANSFIELD, WELLSBORO, 
TROUT RUN, AND LAPORTE
422 PM EST MON JAN 23 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST
TUESDAY...

* RAIN WILL MIX WITH SLEET AND CHANGE TO SNOW THIS EVENING. SNOW 
  WILL FALL HEAVY AT TIMES TONIGHT INTO TUESDAY MORNING AND MAY 
  MIX WITH SLEET BEFORE ENDING BY TUESDAY AFTERNOON.

* SNOW AND SLEET ACCUMULATIONS 6 TO 9 INCHES. SNOW WILL BE HEAVY AND WET 
  WITH MAXIMUM ACCUMULATIONS IN THE HIGHER ELEVATIONS. LOWER 
  AMOUNTS EXPECTED IN THE VALLEYS.

* DANGEROUS TRAVEL ON SNOW COVERED ROADS. LONGER COMMUTE TIMES 
  MONDAY EVENING AND TUESDAY MORNING. GUSTY WINDS AND HEAVY WET 
  SNOW MAY RESULT IN POWER OUTAGES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

PAZ019-025-026-045-046-240930-
/O.EXA.KCTP.WW.Y.0004.000000T0000Z-170124T1200Z/
SOUTHERN CENTRE-BLAIR-HUNTINGDON-SOUTHERN CLINTON-
SOUTHERN LYCOMING-
INCLUDING THE CITIES OF STATE COLLEGE, ALTOONA, HUNTINGDON, 
MOUNT UNION, LOCK HAVEN, AND WILLIAMSPORT
422 PM EST MON JAN 23 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 AM EST TUESDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND SLEET ACCUMULATION...WHICH IS 
IN EFFECT UNTIL 7 AM EST TUESDAY.

HAZARDOUS WEATHER...

* RAIN AND SLEET WILL CHANGE TO MOSTLY SNOW BY EARLY EVENING AND FALL
  HEAVILY AT TIMES INTO EARLY TUESDAY MORNING. 

* SNOW AND SLEET ACCUMULATIONS 2 TO 5 INCHES. SNOW WILL BE HEAVY AND WET 
  WITH MAXIMUM AMOUNTS IN THE HIGHEST ELEVATIONS. LOWER AMOUNTS 
  EXPECTED IN THE VALLEYS.

IMPACTS...

* HAZARDOUS TRAVEL ON SNOW COVERED ROADS. LONGER COMMUTE TIMES 
  MONDAY EVENING AND TUESDAY MORNING. GUSTY WINDS AND HEAVY WET 
  SNOW MAY RESULT IN ISOLATED POWER OUTAGES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

PAZ005-010>012-017-018-240930-
/O.CON.KCTP.WW.Y.0004.000000T0000Z-170124T1200Z/
MCKEAN-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE-
INCLUDING THE CITIES OF BRADFORD, ST. MARYS, RIDGWAY, EMPORIUM, 
RENOVO, DUBOIS, CLEARFIELD, AND PHILIPSBURG
422 PM EST MON JAN 23 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
TUESDAY...

HAZARDOUS WEATHER...

* RAIN WILL MIX WITH AND CHANGE TO SNOW EARLY THIS EVENING.
  SNOW WILL FALL HEAVY AT TIMES TONIGHT INTO EARLY TUESDAY 
  MORNING AND MAY MIX WITH SLEET BEFORE ENDING BY TUESDAY AFTERNOON.

* SNOW AND SLEET ACCUMULATIONS 3 TO 6 INCHES. SNOW WILL BE HEAVY AND WET 
  WITH MAXIMUM AMOUNTS IN THE HIGHEST ELEVATIONS. LOWER AMOUNTS 
  EXPECTED IN THE VALLEYS.

IMPACTS...

* HAZARDOUS TRAVEL ON SNOW COVERED ROADS. LONGER COMMUTE TIMES 
  MONDAY EVENING AND TUESDAY MORNING. GUSTY WINDS AND HEAVY WET 
  SNOW MAY RESULT IN ISOLATED POWER OUTAGES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

PAZ024-033-240500-
/O.CON.KCTP.WW.Y.0004.000000T0000Z-170124T0500Z/
CAMBRIA-SOMERSET-
INCLUDING THE CITIES OF JOHNSTOWN AND SOMERSET
422 PM EST MON JAN 23 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

HAZARDOUS WEATHER...

* A MIX OF SNOW AND SLEET WILL CONTINUE HEAVY AT TIMES THROUGH THE EVENING. 
  SNOW INTENSITY WILL DECREASE LATE TONIGHT INTO EARLY TUESDAY MORNING.

* SNOW AND SLEET ACCUMULATIONS 2 TO 5 INCHES. SNOW WILL BE HEAVY AND WET 
  WITH MAXIMUM AMOUNTS IN THE HIGHEST ELEVATIONS. LOWER AMOUNTS 
  EXPECTED IN THE VALLEYS.

IMPACTS...

* HAZARDOUS TRAVEL ON SNOW COVERED ROADS. LONGER COMMUTE TIMES 
  MONDAY EVENING AND TUESDAY MORNING. GUSTY WINDS AND HEAVY WET 
  SNOW MAY RESULT IN ISOLATED POWER OUTAGES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

DEVOIR
498 
WWUS41 KCTP 232251
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
551 PM EST MON JAN 23 2017

PAZ006-037-041-042-241100-
/O.CON.KCTP.WS.W.0001.000000T0000Z-170124T1500Z/
POTTER-TIOGA-NORTHERN LYCOMING-SULLIVAN-
INCLUDING THE CITIES OF COUDERSPORT, MANSFIELD, WELLSBORO, 
TROUT RUN, AND LAPORTE
551 PM EST MON JAN 23 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST
TUESDAY...

* RAIN WILL MIX WITH SLEET AND CHANGE TO SNOW THIS EVENING. SNOW 
  WILL FALL HEAVY AT TIMES TONIGHT INTO TUESDAY MORNING AND MAY 
  MIX WITH SLEET BEFORE ENDING BY TUESDAY AFTERNOON.

* SNOW AND SLEET ACCUMULATIONS 6 TO 9 INCHES. SNOW WILL BE HEAVY 
  AND WET WITH MAXIMUM ACCUMULATIONS IN THE HIGHER ELEVATIONS. 
  LOWER AMOUNTS EXPECTED IN THE VALLEYS.

* DANGEROUS TRAVEL ON SNOW COVERED ROADS. LONGER COMMUTE TIMES 
  THIS EVENING AND TUESDAY MORNING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

PAZ005-010>012-017>019-025-026-045-046-241100-
/O.CON.KCTP.WW.Y.0004.000000T0000Z-170124T1200Z/
MCKEAN-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE-
SOUTHERN CENTRE-BLAIR-HUNTINGDON-SOUTHERN CLINTON-
SOUTHERN LYCOMING-
INCLUDING THE CITIES OF BRADFORD, ST. MARYS, RIDGWAY, EMPORIUM, 
RENOVO, DUBOIS, CLEARFIELD, PHILIPSBURG, STATE COLLEGE, ALTOONA, 
HUNTINGDON, MOUNT UNION, LOCK HAVEN, AND WILLIAMSPORT
551 PM EST MON JAN 23 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
TUESDAY...

* RAIN AND SLEET WILL CHANGE TO SLEET AND SNOW THIS EVENING. PERIODS OF
  SNOW AND SLEET WILL FALL HEAVY AT TIMES INTO EARLY TUESDAY MORNING.

* SNOW AND SLEET ACCUMULATIONS 1 TO 2 INCHES VALLEYS TO 4 TO 6 INCHES
  RIDGETOPS. SNOW AND SLEET ACCUMULATIONS WILL BE OF THE HEAVY AND WET 
  VARIETY. 

* HAZARDOUS TRAVEL ON SNOW COVERED ROADS. LONGER COMMUTE TIMES 
  THIS EVENING AND TUESDAY MORNING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

PAZ024-033-240500-
/O.CON.KCTP.WW.Y.0004.000000T0000Z-170124T0500Z/
CAMBRIA-SOMERSET-
INCLUDING THE CITIES OF JOHNSTOWN AND SOMERSET
551 PM EST MON JAN 23 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

* A MIX OF SNOW AND SLEET WILL CONTINUE HEAVY AT TIMES THROUGH 
  THE EVENING. SNOW INTENSITY WILL DECREASE LATE TONIGHT INTO 
  EARLY TUESDAY MORNING.

* SNOW AND SLEET ACCUMULATIONS 2 INCHES VALLEYS TO AROUND 5 INCHES
  RIDGES. SNOW AND SLEET ACCUMULATIONS WILL BE OF THE HEAVY AND WET 
  VARIETY. 

* HAZARDOUS TRAVEL ON SNOW COVERED ROADS. LONGER COMMUTE TIMES 
  THIS EVENING AND TUESDAY MORNING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

DEVOIR
636 
WWUS41 KCTP 240012
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
712 PM EST MON JAN 23 2017

PAZ006-037-041-042-241215-
/O.CON.KCTP.WS.W.0001.000000T0000Z-170124T1500Z/
POTTER-TIOGA-NORTHERN LYCOMING-SULLIVAN-
INCLUDING THE CITIES OF COUDERSPORT, MANSFIELD, WELLSBORO, 
TROUT RUN, AND LAPORTE
712 PM EST MON JAN 23 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST
TUESDAY...

* RAIN WILL MIX WITH SLEET AND CHANGE TO SNOW THIS EVENING. PERIODS 
  OF SNOW AND SLEET OF VARYING INTENSITY WILL CONTINUE OVERNIGHT
  INTO TUESDAY MORNING AND MAY MIX WITH SLEET BEFORE ENDING BY 
  TUESDAY AFTERNOON.

* SNOW AND SLEET ACCUMULATIONS 4 TO 8 INCHES. SNOW WILL BE HEAVY 
  AND WET WITH MAXIMUM ACCUMULATIONS IN THE HIGHER ELEVATIONS. 
  LOWER AMOUNTS EXPECTED IN THE VALLEYS.

* DANGEROUS TRAVEL ON SNOW COVERED ROADS. LONGER COMMUTE TIMES 
  THIS EVENING AND TUESDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

PAZ005-010>012-017>019-025-026-045-046-241200-
/O.CON.KCTP.WW.Y.0004.000000T0000Z-170124T1200Z/
MCKEAN-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE-
SOUTHERN CENTRE-BLAIR-HUNTINGDON-SOUTHERN CLINTON-
SOUTHERN LYCOMING-
INCLUDING THE CITIES OF BRADFORD, ST. MARYS, RIDGWAY, EMPORIUM, 
RENOVO, DUBOIS, CLEARFIELD, PHILIPSBURG, STATE COLLEGE, ALTOONA, 
HUNTINGDON, MOUNT UNION, LOCK HAVEN, AND WILLIAMSPORT
712 PM EST MON JAN 23 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
TUESDAY...

* PERIODS OF RAIN SLEET AND SNOW WILL FALL THROUGH EARLY 
  TUESDAY MORNING.

* SNOW AND SLEET ACCUMULATIONS 1 TO 2 INCHES VALLEYS TO 3 TO 5 
  INCHES RIDGETOPS. SNOW AND SLEET ACCUMULATIONS WILL BE OF THE 
  HEAVY AND WET VARIETY.

* HAZARDOUS TRAVEL ON SNOW COVERED ROADS. LONGER TRAVEL TIMES 
  OVERNIGHT AND TUESDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

PAZ024-033-240500-
/O.CON.KCTP.WW.Y.0004.000000T0000Z-170124T0500Z/
CAMBRIA-SOMERSET-
INCLUDING THE CITIES OF JOHNSTOWN AND SOMERSET
712 PM EST MON JAN 23 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

* A MIX OF SNOW AND SLEET AND RAIN WILL CONTINUE THROUGH LATE EVENING.
  PRECIPITATION INTENSITY WILL DECREASE LATE TONIGHT INTO 
  EARLY TUESDAY MORNING.

* SNOW AND SLEET ACCUMULATIONS OF 1 TO 2 INCHES VALLEYS TO AROUND 5 
  INCHES RIDGES. SNOW AND SLEET ACCUMULATIONS WILL BE OF THE 
  HEAVY AND WET VARIETY.

* HAZARDOUS TRAVEL ON SNOW COVERED ROADS. LONGER COMMUTE TIMES 
  THIS EVENING AND TUESDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

DEVOIR
453 
WWUS41 KCTP 240325
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1025 PM EST MON JAN 23 2017

PAZ006-037-041-042-241500-
/O.CON.KCTP.WS.W.0001.000000T0000Z-170124T1500Z/
POTTER-TIOGA-NORTHERN LYCOMING-SULLIVAN-
INCLUDING THE CITIES OF COUDERSPORT, MANSFIELD, WELLSBORO, 
TROUT RUN, AND LAPORTE
1025 PM EST MON JAN 23 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST
TUESDAY...

* FREEZING RAIN...SLEET AND SNOW WILL CONTINUE AT VARYING INTENSITY 
  OVERNIGHT INTO TUESDAY MORNING.

* SNOW AND SLEET ACCUMULATIONS 4 TO 8 INCHES. SNOW WILL BE HEAVY 
  AND WET WITH MAXIMUM ACCUMULATIONS IN THE HIGHER ELEVATIONS. 
  LOWER AMOUNTS EXPECTED IN THE VALLEYS.

* OVER ONE TENTH OF AN INCH OF ICE MAY ACCUMULATE AS WELL.

* DANGEROUS TRAVEL ON SNOW AND SLUSH COVERED ROADS. LONGER COMMUTE TIMES 
  THIS EVENING AND TUESDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

PAZ005-010>012-017>019-025-026-045-046-241200-
/O.CON.KCTP.WW.Y.0004.000000T0000Z-170124T1200Z/
MCKEAN-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE-
SOUTHERN CENTRE-BLAIR-HUNTINGDON-SOUTHERN CLINTON-
SOUTHERN LYCOMING-
INCLUDING THE CITIES OF BRADFORD, ST. MARYS, RIDGWAY, EMPORIUM, 
RENOVO, DUBOIS, CLEARFIELD, PHILIPSBURG, STATE COLLEGE, ALTOONA, 
HUNTINGDON, MOUNT UNION, LOCK HAVEN, AND WILLIAMSPORT
1025 PM EST MON JAN 23 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
TUESDAY...

* PERIODS OF RAIN SLEET AND SNOW WILL FALL THROUGH EARLY TUESDAY 
  MORNING.

* SNOW AND SLEET ACCUMULATIONS 1 TO 2 INCHES VALLEYS TO 3 TO 5 
  INCHES RIDGETOPS. SNOW AND SLEET ACCUMULATIONS WILL BE OF THE 
  HEAVY AND WET VARIETY.

* HAZARDOUS TRAVEL ON SNOW COVERED ROADS. LONGER TRAVEL TIMES 
  OVERNIGHT AND TUESDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

PAZ024-033-240500-
/O.CON.KCTP.WW.Y.0004.000000T0000Z-170124T0500Z/
CAMBRIA-SOMERSET-
INCLUDING THE CITIES OF JOHNSTOWN AND SOMERSET
1025 PM EST MON JAN 23 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

* A MIX OF SNOW AND SLEET AND RAIN WILL CONTINUE THROUGH LATE 
  TONIGHT. PRECIPITATION INTENSITY WILL DECREASE AFTER MIDNIGHT 
  INTO EARLY TUESDAY MORNING.

* SNOW AND SLEET ACCUMULATIONS OF 1 TO 2 INCHES VALLEYS TO 
  AROUND 5 INCHES RIDGES. SNOW AND SLEET ACCUMULATIONS WILL BE 
  OF THE HEAVY AND WET VARIETY.

* HAZARDOUS TRAVEL ON SNOW COVERED ROADS. LONGER COMMUTE TIMES 
  THIS EVENING AND TUESDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

DEVOIR
005 
WWUS41 KCTP 240439
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1139 PM EST MON JAN 23 2017

PAZ006-037-041-042-241500-
/O.CON.KCTP.WS.W.0001.000000T0000Z-170124T1500Z/
POTTER-TIOGA-NORTHERN LYCOMING-SULLIVAN-
INCLUDING THE CITIES OF COUDERSPORT, MANSFIELD, WELLSBORO, 
TROUT RUN, AND LAPORTE
1139 PM EST MON JAN 23 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST
TUESDAY...

* FREEZING RAIN...SLEET AND SNOW WILL GRADUALLY TURN TO ALL SNOW
  THROUGH THE NIGHT. THE SNOW WILL CONTINUE INTO THE LATE MORNING
  OR EVEN EARLY AFTERNOON.

* SNOW AND SLEET ACCUMULATIONS 4 TO 8 INCHES. THE SLEET AND SNOW
  WILL BE HEAVY AND WET WITH MAXIMUM ACCUMULATIONS IN THE HIGHER
  ELEVATIONS. LOWER AMOUNTS ARE EXPECTED IN THE VALLEYS.

* OVER ONE TENTH OF AN INCH OF ICE FROM FREEZING RAIN MAY
  ACCUMULATE BEFORE THE CHANGE TO ALL SNOW.

* DANGEROUS TRAVEL ON SNOW AND SLUSH COVERED ROADS. LONGER COMMUTE
  TIMES THIS EVENING AND TUESDAY MORNING. SCATTERED POWER OUTAGES
  ARE EXPECTED AS THE SLUSHY ACCUMULATIONS AND ICE WILL WEIGH DOWN
  TREES AND POWER LINES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

PAZ024-033-241200-
/O.EXT.KCTP.WW.Y.0004.000000T0000Z-170124T1200Z/
CAMBRIA-SOMERSET-
INCLUDING THE CITIES OF JOHNSTOWN AND SOMERSET
1139 PM EST MON JAN 23 2017

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 7 AM EST TUESDAY...

* A MIX OF SNOW AND SLEET WILL BECOME ALL SNOW OVERNIGHT.

* SNOW AND SLEET ACCUMULATIONS OF 2 TO 3 INCHES IN THE VALLEYS TO
  AROUND 6 INCHES ON THE RIDGES. THE SNOW AND SLEET ACCUMULATIONS
  WILL BE HEAVY AND WET.

* HAZARDOUS TRAVEL ON SNOW COVERED ROADS. LONGER COMMUTE TIMES
  THIS EVENING AND TUESDAY MORNING. SCATTERED POWER OUTAGES 
POSSIBLE DUE TO THE HEAVY...SLUSHY ACCUMULATIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

PAZ005-010>012-017>019-025-026-045-046-241200-
/O.CON.KCTP.WW.Y.0004.000000T0000Z-170124T1200Z/
MCKEAN-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE-
SOUTHERN CENTRE-BLAIR-HUNTINGDON-SOUTHERN CLINTON-
SOUTHERN LYCOMING-
INCLUDING THE CITIES OF BRADFORD, ST. MARYS, RIDGWAY, EMPORIUM, 
RENOVO, DUBOIS, CLEARFIELD, PHILIPSBURG, STATE COLLEGE, ALTOONA, 
HUNTINGDON, MOUNT UNION, LOCK HAVEN, AND WILLIAMSPORT
1139 PM EST MON JAN 23 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
TUESDAY...

* PERIODS OF RAIN AND DRIZZLE WILL TURN TO MOSTLY SNOW OVERNIGHT
  AND END IN THE MORNING HOURS.

* SNOW AND SLEET ACCUMULATIONS 1 TO 2 INCHES IN THE VALLEYS TO 3
  TO 5 INCHES ON THE RIDGETOPS. SNOW AND SLEET ACCUMULATIONS WILL
  BE HEAVY AND WET. 

* EXPECT HAZARDOUS TRAVEL ON SNOW COVERED ROADS AND LONGER TRAVEL
  TIMES OVERNIGHT AND TUESDAY MORNING. ISOLATED POWER OUTAGES ARE
  POSSIBLE DUE TO THE HEAVY ACCUMULATIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$
844 
WWUS41 KCTP 241145
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
645 AM EST TUE JAN 24 2017

PAZ006-037-041-042-241500-
/O.CON.KCTP.WS.W.0001.000000T0000Z-170124T1500Z/
POTTER-TIOGA-NORTHERN LYCOMING-SULLIVAN-
INCLUDING THE CITIES OF COUDERSPORT, MANSFIELD, WELLSBORO, 
TROUT RUN, AND LAPORTE
645 AM EST TUE JAN 24 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS
MORNING...

* FREEZING RAIN...SNOW WILL GRADUALLY TAPER OFF THROUGH THE
  MORNING.

* TOTAL ACCUMULATIONS OF 4 TO 8 INCHES. THE SLEET AND SNOW WILL BE
  HEAVY AND WET WITH MAXIMUM ACCUMULATIONS IN THE HIGHER
  ELEVATIONS. LOWER AMOUNTS ARE EXPECTED IN THE VALLEYS.

* DANGEROUS TRAVEL ON SNOW AND SLUSH COVERED ROADS. LONGER COMMUTE
  TIMES ARE EXPECTED THIS MORNING. SCATTERED POWER OUTAGES ARE
  EXPECTED AS THE SLUSHY ACCUMULATIONS AND ICE WILL WEIGH DOWN
  TREES AND POWER LINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$

PAZ005-010>012-017>019-024>026-033-045-046-241500-
/O.EXT.KCTP.WW.Y.0004.000000T0000Z-170124T1500Z/
MCKEAN-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE-
SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-SOMERSET-
SOUTHERN CLINTON-SOUTHERN LYCOMING-
INCLUDING THE CITIES OF BRADFORD, ST. MARYS, RIDGWAY, EMPORIUM, 
RENOVO, DUBOIS, CLEARFIELD, PHILIPSBURG, STATE COLLEGE, 
JOHNSTOWN, ALTOONA, HUNTINGDON, MOUNT UNION, SOMERSET, 
LOCK HAVEN, AND WILLIAMSPORT
645 AM EST TUE JAN 24 2017

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 AM EST THIS
MORNING...

* SNOW WILL GRADUALLY TAPER OFF THIS MORNING.

* SNOW AND SLEET ACCUMULATIONS OF 1 TO 3 INCHES IN THE VALLEYS TO
  3 TO 5 INCHES ON THE RIDGE TOPS. SNOW AND SLEET ACCUMULATIONS
  WILL BE HEAVY AND WET.

* EXPECT HAZARDOUS TRAVEL ON SNOW COVERED ROADS AND LONGER TRAVEL
  TIMES THIS MORNING. ISOLATED POWER OUTAGES ARE POSSIBLE DUE TO
  THE HEAVY ACCUMULATIONS ON TREE LIMBS AND POWER LINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REMINDS MOTORISTS
TO ADJUST SPEEDS BASED ON DRIVING CONDITIONS AND TO TAKE IT SLOW
IN ICE AND SNOW.

&&

$$
052 
WWUS41 KCTP 241514
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1014 AM EST TUE JAN 24 2017

PAZ006-037-041-042-241615-
/O.EXP.KCTP.WS.W.0001.000000T0000Z-170124T1500Z/
POTTER-TIOGA-NORTHERN LYCOMING-SULLIVAN-
INCLUDING THE CITIES OF COUDERSPORT, MANSFIELD, WELLSBORO, 
TROUT RUN, AND LAPORTE
1014 AM EST TUE JAN 24 2017

...WINTER STORM WARNING HAS EXPIRED...

THE STORM THAT BROUGHT SLEET, THEN SEVERAL OR MORE INCHES OF SNOW
TO THE REGION OVERNIGHT WAS LOCATED JUST SOUTH OF LONG ISLAND NEW
YORK LATE THIS MORNING. THIS AREA OF LOW PRESSURE WILL MOVE 
GRADUALLY TO THE NORTHEAST TODAY BRINGING PERIODS OF LIGHT SNOW 
WITH LITTLE OR NO ADDITIONAL ACCUMULATION. 



$$

PAZ005-010>012-017>019-024>026-033-045-046-241615-
/O.EXP.KCTP.WW.Y.0004.000000T0000Z-170124T1500Z/
MCKEAN-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE-
SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-SOMERSET-
SOUTHERN CLINTON-SOUTHERN LYCOMING-
INCLUDING THE CITIES OF BRADFORD, ST. MARYS, RIDGWAY, EMPORIUM, 
RENOVO, DUBOIS, CLEARFIELD, PHILIPSBURG, STATE COLLEGE, 
JOHNSTOWN, ALTOONA, HUNTINGDON, MOUNT UNION, SOMERSET, 
LOCK HAVEN, AND WILLIAMSPORT
1014 AM EST TUE JAN 24 2017

...WINTER WEATHER ADVISORY HAS EXPIRED...

THE STORM THAT BROUGHT THE WIDESPREAD WINTRY MIX, THEN A FEW TO
SEVERAL INCHES OF SNOW TO THE REGION WAS LOCATED JUST SOUTH OF 
LONG ISLAND NEW YORK LATE THIS MORNING. THIS AREA OF LOW PRESSURE 
WILL MOVE GRADUALLY TO THE NORTHEAST TODAY BRINGING PERIODS OF 
LIGHT SNOW WITH LITTLE OR NO ADDITIONAL ACCUMULATION. 


$$

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 23, 12:28 AM EST, 3 hours 43 minutes earlier.

Area forecast discussion, Jan 23, 12:28 AM EST, 3 hours 43 minutes before
Area Forecast Discussion
National Weather Service State College PA
1228 AM EST Mon Jan 23 2017

.SYNOPSIS...
A multifaceted storm will bring drenching rain, elevation-
driven snow and gusty winds to Central Pennsylvania on Monday.
High pressure and unseasonably mild conditions will briefly
return for midweek before a pattern change brings colder
temperatures and lake effect snow to close out the month.

&&

.NEAR TERM /UNTIL 6 AM THIS MORNING/...
Low visibilities in stubborn denser fog finally rising a bit
from Altoona through State College up toward Williamsport where
a swath of fog has been persistent through the day and into this
evening.

PoPs currently trending upward across the region as moisture
and lift increases ahead of the strong storm system tracking
northeast across the Southern Appalachians. Band of light rain
developed over northern mountains this eve, but QPFs were
minimal. PoPs increase from south to north tonight, as latest
radar and HRRR progs shows rain continuing to spread north of
the Mason-Dixon line overnight. Also, winds will pick up from
the east over the lower susq toward sunrise, with speeds rising
to 20mph and getting gusty later in the morning.

&&

.SHORT TERM /6 AM THIS MORNING THROUGH 6 PM TUESDAY/...
Rain will increase in coverage and intensity from south to
north through daybreak Monday. A tightening pressure gradient
between deepening low pressure in the Carolinas and high
pressure in eastern Quebec will produce strong/gusty east winds
early Monday morning and continue through Monday afternoon.
Issued a wind advisory for most of the lower Susquehanna Valley
with max wind gusts 45-50mph.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/...
All model data tracking closed upper low northeast across
Virginia Monday. A steady rain will overspread Pa from north to
south as strong upper lvl divergence, anomalous easterly low
lvl jet/PWATS work into the state. Thermal profiles initially
warm enough for rain everywhere. However, dynamic cooling
associated with arrival of strongest forcing will likely result
in a changeover to wet snow over the higher terrain of central
Pa. Forecast soundings suggest the highest elevations of the
Laurels/Northern Mtns could mix with or change to wet snow
around midday. By later in the day, snow could become more than
just a higher elevation threat, with thermal profiles even as
far east as AOO/UNV cooling sufficiently for all snow. Limiting
factor in terms of accumulation will be marginal boundary layer
temps and warm ground. The threat is for several inches of heavy
wet snow, especially favoring the higher elevations, across
northern Pa. A winter storm watch has been issued for the
northern counties, where 6+ inches appears possible, mainly over
the higher terrain.

Biggest threat across the Lower Susq Valley will likely be
gusty winds, the result of tightening pressure gradient
between approaching low pressure and high north of New England.
Bufkit soundings indicate wind gusts in excess of 40kts are
likely across southeast Pa, as low lvl jet swings through
Monday. Per coordination with LWX/PHI, have issued a wind
advisory for this area.

Lastly, still monitoring the potential for minor flooding.
Target area for the heaviest rain is across the south central
part of the state, where orographic forcing at nose of powerful
easterly low level jet will play a role. Mean QPF from both SREF
and GEFS max out around 1.5 inches in this region, which would
be a beneficial rainfall. However, given FFG/FFH values around
2 inches, can't rule out some minor flooding.

The surface low will reach our latitude between about 6-12Z
Tuesday, an old rule of thumb that dictated when the steady
precip tends to taper off. Upper ridging will quickly build into
the region later Tuesday into early Wednesday, bringing a short
period of fair and mild wx.

A pattern shift is advertised for the second half of the week
as low pressure takes up residence over eastern Canada, and
despite a tenacious ridge over the northern Caribbean and
Bahamas, models carve out a long wave trough over the eastern US
with a return to seasonable cold by the end of the week into
next weekend.

The ridge in the west and trough in the east is also usually a
good one for winter storminess, but the deterministic ECMWF and
GFS don't show much more than a series of clipper type systems
that promise an extended period of clouds and scattered mainly
mountain snow showers that should continue through next weekend
into the week after.

&&

.AVIATION /06Z MONDAY THROUGH FRIDAY/...
Steady rain still well to the south. Main issue early on is
dense fog.

06Z TAFS sent.

Earlier discussion below.

With the showers moving in, and winds beginning to pick up, much
of the LIFR conditions have improved, but while visibilities
have improved, ceilings continue to lower in response to
easterly flow.

After several hours of variable cig and vis conditions, expect
most areas to settle into mainly IFR conditions late tonight
and much of Monday, with a widespread rain event moving into the
region. Later in the period across the west and north,
conditions expected to deteriorate even more as we approach
20z-00z...with rain mixing with and possibly changing to snow.
Extent and degree of changeover still in question, but dynamic
cooling may bring some rain/snow mix into most areas except the
far southeastern airfields.

Additionally, strong gusty winds will impact southern airfields
beginning late tonight and Monday. KMDT/KLNS may see gusts
approaching 30-35+KT. Low level jet will introduce LLWS at most
central and southern airfields late tonight and Monday.

Outlook...

Tue...Widespread sub-VFR with some improvement by aftn. Rain/snow
ending in the morning. Gusty winds from NNW decreasing late.

Wed...Low cigs/rain possible western 1/2. Breezy late.

Thu-Fri...MVFR/IFR in rain/snow showers west. MVFR to VFR east.

&&

.CTP WATCHES/WARNINGS/ADVISORIES...
Winter Storm Watch from noon EST today through Tuesday morning
for PAZ005-006-037-041-042.
Wind Advisory from 5 AM early this morning to 4 PM EST this
afternoon for PAZ057-059-064>066.

&&

SYNOPSIS...RXR/Steinbugl
NEAR TERM...RXR/Steinbugl
SHORT TERM...RXR/Steinbugl
LONG TERM...Fitzgerald/La Corte
AVIATION...Jung/Martin
Hazardous weather outlook, Jan 22, 2:03 PM EST, 14 hours 8 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE STATE COLLEGE PA
203 PM EST SUN JAN 22 2017

PAZ057-059-064>066-231915-
DAUPHIN-LEBANON-ADAMS-YORK-LANCASTER-
203 PM EST SUN JAN 22 2017

...WIND ADVISORY IN EFFECT FROM 5 AM TO 4 PM EST MONDAY...

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.

   WIND ADVISORY.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO
WEATHER.GOV/STATECOLLEGE ON THE INTERNET FOR MORE
INFORMATION ABOUT THE FOLLOWING HAZARDS.

   WIND ADVISORY.

LOCALLY HEAVY RAINFALL MAY RESULT IN AREAS OF MINOR FLOODING ON
MONDAY.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

PAZ036-056-058-063-231915-
FRANKLIN-PERRY-SCHUYLKILL-CUMBERLAND-
203 PM EST SUN JAN 22 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A LOW PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

LOCALLY HEAVY RAINFALL MAY RESULT IN AREAS OF MINOR FLOODING ON
MONDAY.

WIND GUSTS IN EXCESS OF 40 MPH ARE POSSIBLE MONDAY MORNING THROUGH
THE AFTERNOON.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

PAZ005-006-037-041-042-231915-
MCKEAN-POTTER-TIOGA-NORTHERN LYCOMING-SULLIVAN-
203 PM EST SUN JAN 22 2017

...WINTER STORM WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
TUESDAY MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A LOW PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

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...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

PAZ004-010>012-231915-
WARREN-ELK-CAMERON-NORTHERN CLINTON-
203 PM EST SUN JAN 22 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A LOW PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

SEVERAL INCHES OF HEAVY WET SNOW ARE POSSIBLE MONDAY AFTERNOON AND
EVENING ESPECIALLY IN THE HIGHER ELEVATIONS. THE HEAVY WET SNOW MAY
PRODUCE HAZARDOUS TRAVEL AND LOCALIZED UTILITY INTERRUPTIONS.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

PAZ019-025>028-034-035-231915-
SOUTHERN CENTRE-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-BEDFORD-FULTON-
203 PM EST SUN JAN 22 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A LOW PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

LOCALLY HEAVY RAINFALL MAY RESULT IN AREAS OF MINOR FLOODING ON
MONDAY.

RAIN WILL MIX WITH OR CHANGE TO WET SNOW MONDAY AFTERNOON WITH
LIGHT SNOW ACCUMULATION POSSIBLE BY EVENING MAINLY IN THE HIGHER
ELEVATIONS.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

PAZ017-018-024-033-231915-
CLEARFIELD-NORTHERN CENTRE-CAMBRIA-SOMERSET-
203 PM EST SUN JAN 22 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A LOW PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

LOCALLY HEAVY RAINFALL MAY RESULT IN AREAS OF MINOR FLOODING ON
MONDAY.

SEVERAL INCHES OF HEAVY WET SNOW ARE POSSIBLE ON MONDAY ESPECIALLY
IN THE HIGHER ELEVATIONS. THE HEAVY WET SNOW MAY PRODUCE HAZARDOUS
TRAVEL AND LOCALIZED UTILITY INTERRUPTIONS.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

PAZ045-046-049>053-231915-
SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-
203 PM EST SUN JAN 22 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A LOW PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

LOCALLY HEAVY RAINFALL MAY RESULT IN AREAS OF MINOR FLOODING ON
MONDAY.

RAIN MAY MIX WITH OR CHANGE TO WET SNOW ON MONDAY WITH LIGHT SNOW
ACCUMULATION POSSIBLE IN THE HIGHER ELEVATIONS.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

The office that day

Everything else NWS State College, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 23, 4:11 AM ESTWinter Weather AdvisoryCTPBlair, Cambria, Cameron, Centre, Clearfield, Clinton and 5 more30 hr

Nearby

Winter Storm Warnings in Pennsylvania, 2017Every winter storm warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.