Alert archive / Pennsylvania / Winter Storm Warnings in 2015

Winter Storm Warning 3, NWS Pittsburgh, PA

January 31, 20159 counties in Pennsylvania; Columbiana County, Ohio

NWS Pittsburgh, PA issued this winter storm warning at Jan 31, 2015, 2:28 PM EST for 9 counties in Pennsylvania; Columbiana County, Ohio. It took effect at Feb 1, 2015, 4:00 AM EST. It was in force for 31 hr. 60 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 31, 2015, 2:28 PM EST (19:28 UTC)
In effect from
Feb 1, 2015, 4:00 AM EST
Expired
Feb 2, 2015, 10:32 AM EST
In force
31 hr
Issued by
NWS Pittsburgh, PA

Counties Columbiana County, OH, Armstrong County, PA, Beaver County, PA, Butler County, PA, Clarion County, PA, Forest County, PA, Jefferson County, PA, Lawrence County, PA, Mercer County, PA, Venango County, PA

The radar

The Pittsburgh radar (KPBZ), 67 km from the middle of the area, began a volume at 19:33 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
Feb 1, 8:29 AM ESTSNOW 1.5Ellwood City, PA
Feb 1, 9:22 AM ESTSNOW 1New Beaver, PA
Feb 1, 9:57 AM ESTSNOW 2Wellsville, OH
Feb 1, 11:23 AM ESTSNOW 1Cranberry, PA
Feb 1, 11:23 AM ESTSNOW 1Criders Corners, PA
Feb 1, 11:48 AM ESTSNOW 1.5Salem, OH
Feb 1, 12:31 PM ESTSNOW 13 Se Parker, PA
Feb 1, 1:09 PM ESTSNOW 2Monaca, PA
Feb 1, 1:20 PM ESTSNOW 1Hermitage, PA
Feb 1, 1:24 PM ESTSNOW 2Mercer, PA
Feb 1, 1:26 PM ESTSNOW 22 E Monaca, PA
Feb 1, 1:26 PM ESTSNOW 2Oil City, PA
Feb 1, 1:29 PM ESTSNOW 1.5Ohioville, PA
Feb 1, 1:32 PM ESTSNOW 3Foxburg, PA
Feb 1, 1:33 PM ESTSNOW 2Slippery Rock, PA
Feb 1, 1:34 PM ESTSNOW 2Calcutta, OH
Feb 1, 1:39 PM ESTSNOW 3Claytonia, PA
Feb 1, 1:39 PM ESTSNOW 3West Sunbury, PA
Feb 1, 1:40 PM ESTSNOW 2Calcutta, OH
Feb 1, 1:40 PM ESTSNOW 3Foxburg, PA
Feb 1, 1:41 PM ESTSNOW 3Beaver, PA
Feb 1, 1:41 PM ESTSNOW 3Prospect, PA
Feb 1, 1:43 PM ESTSNOW 2Lisbon, OH
Feb 1, 1:46 PM ESTSNOW 2Ambridge, PA
Feb 1, 1:50 PM ESTSNOW 3Darlington, PA
Feb 1, 1:56 PM ESTSNOW 3Spring Church, PA
Feb 1, 2:01 PM ESTSNOW 22 S Zelienople, PA
Feb 1, 2:16 PM ESTSNOW 2.52 W Mars, PA
Feb 1, 2:20 PM ESTSNOW 3Spring Church, PA
Feb 1, 2:31 PM ESTSNOW 3Karns City, PA
Feb 1, 2:32 PM ESTSNOW 3Transfer, PA
Feb 1, 2:33 PM ESTSNOW 2.5Cranberry Twp, PA
Feb 1, 2:36 PM ESTSNOW 2Lisbon, OH
Feb 1, 2:53 PM ESTSNOW 2Baden, PA
Feb 1, 2:53 PM ESTSNOW 3New Castle, PA
Feb 1, 2:54 PM ESTSNOW 1Knox, PA
Feb 1, 3:00 PM ESTSNOW 2Frogtown, PA
Feb 1, 3:00 PM ESTSNOW 5Negley, OH
Feb 1, 3:05 PM ESTSNOW 3.5Portersville, PA
Feb 1, 3:11 PM ESTSNOW 3.7New Waterford, OH
Feb 1, 3:30 PM ESTSNOW 3.5Ellwood City, PA
Feb 1, 3:31 PM ESTSNOW 3.5Grove City, PA
Feb 1, 3:31 PM ESTSNOW 5.5Mercer, PA
Feb 1, 3:34 PM ESTSNOW 2.7Monaca, PA
Feb 1, 3:47 PM ESTSNOW 2.5Hawthorn, PA
Feb 1, 3:49 PM ESTSNOW 3Ellport, PA
Feb 1, 3:50 PM ESTSNOW 3East Palestine, OH
Feb 1, 3:55 PM ESTSNOW 3Economy, PA
Feb 1, 4:00 PM ESTSNOW 2Brookville, PA
Feb 1, 4:00 PM ESTSNOW 2.5East Butler, PATIME ESTIMATED...SNOW CHANGED TO RAIN IN THE EVENING
Feb 1, 4:49 PM ESTSNOW 3Evans City, PA
Feb 1, 4:52 PM ESTSNOW 3Salineville, OH
Feb 1, 4:53 PM ESTSNOW 5Jamestown, PA
Feb 1, 4:59 PM ESTSNOW 3.5Rochester, PA
Feb 1, 5:00 PM ESTSNOW 3.5Pine Grove, PA
Feb 1, 5:00 PM ESTSNOW 4Rimersburg, PA
Feb 1, 5:00 PM ESTSNOW 6.4Greenville, PA
Feb 1, 5:03 PM ESTSNOW 4.5Salem, OH
Feb 1, 5:16 PM ESTSNOW 5Spring Church, PA
Feb 1, 5:18 PM ESTSNOW 3Mars, PA

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

The nearest sounding before it

Pittsburgh, PA (KAGC), launched 12:00Z, 7.5 hours before the alert went out and 76 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, Pittsburgh, PA at 12:00Z on 2015-01-31Temperature 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, Pittsburgh, PA at 12:00Z on 2015-01-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 184 square meters per square second.1939587897117136Sfc1 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
810 m above ground
0-6 km bulk shear
90 kt
0-1 km storm-relative helicity
184 m²/s²
0-3 km storm-relative helicity
253 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

202 
WWUS41 KPBZ 311928
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PITTSBURGH PA
228 PM EST SAT JAN 31 2015

MDZ001-PAZ075-076-WVZ023-041-312030-
/O.CAN.KPBZ.WS.A.0001.150201T0900Z-150202T1700Z/
GARRETT-FAYETTE-FAYETTE RIDGES-PRESTON-TUCKER-
INCLUDING THE CITIES OF...OAKLAND MD...UNIONTOWN...CHAMPION...
OHIOPYLE...KINGWOOD...PARSONS
228 PM EST SAT JAN 31 2015

...WINTER STORM WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS CANCELLED THE
WINTER STORM WATCH.

THE POTENTIAL FOR HEAVY SNOW AND ICE HAS SHIFTED NORTH OF THE
AREA. LIGHT SNOW IS STILL EXPECTED SUNDAY...WITH A LIGHT WINTRY
MIX POSSIBLE SUNDAY NIGHT.

$$

PAZ007>009-010330-
/O.UPG.KPBZ.WS.A.0001.150201T0900Z-150202T1700Z/
/O.NEW.KPBZ.WS.W.0003.150201T0900Z-150202T1700Z/
MERCER-VENANGO-FOREST-
INCLUDING THE CITIES OF...GROVE CITY...FRANKLIN...TIONESTA
228 PM EST SAT JAN 31 2015

...WINTER STORM WARNING IN EFFECT FROM 4 AM SUNDAY TO NOON EST
MONDAY...

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A WINTER
STORM WARNING FOR SNOW...WHICH IS IN EFFECT FROM 4 AM SUNDAY TO
NOON EST MONDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* SNOW ACCUMULATIONS...8 TO 10 INCHES.

* SNOW BEGINNING...LATE TONIGHT.

* PERIOD OF MOST INTENSE SNOW...SUNDAY AFTERNOON AND NIGHT.

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO
  REDUCED VISIBILITY AND SNOW ACCUMULATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL
MAKE TRAVEL DANGEROUS. USE EXTREME CAUTION. REPORT SNOW ACCUMULATION
TO THE NATIONAL WEATHER SERVICE BY CALLING...412-262-1988...POSTING
TO THE NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER
@NWSPITTSBURGH.

&&

$$

OHZ041-PAZ013>016-020-022-023-010330-
/O.UPG.KPBZ.WS.A.0001.150201T0900Z-150202T1700Z/
/O.NEW.KPBZ.WS.W.0003.150201T0900Z-150202T1700Z/
COLUMBIANA-LAWRENCE-BUTLER-CLARION-JEFFERSON PA-BEAVER-ARMSTRONG-
INDIANA-
INCLUDING THE CITIES OF...SALEM...NEW CASTLE...BUTLER...CLARION...
BROOKVILLE...BEAVER...KITTANNING...INDIANA
228 PM EST SAT JAN 31 2015

...WINTER STORM WARNING IN EFFECT FROM 4 AM SUNDAY TO NOON EST
MONDAY...

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A WINTER
STORM WARNING FOR SNOW...WHICH IS IN EFFECT FROM 4 AM SUNDAY TO
NOON EST MONDAY. THE SNOW MAY ALSO MIX WITH SOME SLEET OR FREEZING
RAIN SUNDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* ICE ACCUMULATIONS...A TRACE TO A TENTH OF AN INCH.

* SNOW ACCUMULATIONS...5 TO 9 INCHES.

* SNOW BEGINNING...LATE TONIGHT.

* PERIOD OF MOST INTENSE SNOW...SUNDAY AFTERNOON AND SUNDAY
  NIGHT.

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO
  ACCUMULATION OF SNOW AND ICE AND REDUCED VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL
MAKE TRAVEL DANGEROUS. IF YOU MUST VENTURE OUT AT ALL...USE
EXTREME CAUTION. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER
SERVICE BY CALLING...412-262-1988...POSTING TO THE NWS PITTSBURGH
FACEBOOK PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$

OHZ039-040-048>050-057>059-PAZ021-029-073-074-WVZ001>003-010330-
/O.UPG.KPBZ.WS.A.0001.150201T0900Z-150202T1700Z/
/O.NEW.KPBZ.WW.Y.0010.150201T0900Z-150202T1700Z/
TUSCARAWAS-CARROLL-COSHOCTON-HARRISON-JEFFERSON OH-MUSKINGUM-
GUERNSEY-BELMONT-ALLEGHENY-WASHINGTON-WESTMORELAND-
WESTMORELAND RIDGES-HANCOCK-BROOKE-OHIO-
INCLUDING THE CITIES OF...NEW PHILADELPHIA...CARROLLTON...
COSHOCTON...CADIZ...STEUBENVILLE...ZANESVILLE...CAMBRIDGE...
ST. CLAIRSVILLE...PITTSBURGH METRO AREA...WASHINGTON...
GREENSBURG...LATROBE...LIGONIER...DONEGAL...WEIRTON...BETHANY...
WHEELING
228 PM EST SAT JAN 31 2015

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM SUNDAY TO NOON EST
MONDAY...

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 4 AM SUNDAY TO
NOON EST MONDAY. THE SNOW MAY MIX WITH FREEZING RAIN AND SLEET
SUNDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* ICE ACCUMULATIONS...A TRACE TO A TENTH OF AN INCH.

* SNOW ACCUMULATIONS...2 TO 5 INCHES.

* SNOW BEGINNING...LATE TONIGHT.

* PERIOD OF MOST INTENSE SNOW...SUNDAY AFTERNOON AND NIGHT. A
  WINTRY MIX IS ALSO POSSIBLE SUNDAY NIGHT.

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO
  ACCUMULATION OF A WINTRY MIX OF SNOW AND ICE...AND REDUCED
  VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT SNOW...SLEET...OR FREEZING
RAIN WILL CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING AND
REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE
BY CALLING 412-262-1988...POSTING TO THE NWS PITTSBURGH FACEBOOK
PAGE...OR USING TWITTER @NWSPITTSBURGH.


&&

$$

07
7 follow-up statements
589 
WWUS41 KPBZ 010342
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PITTSBURGH PA
1042 PM EST SAT JAN 31 2015

PAZ007>009-011145-
/O.CON.KPBZ.WS.W.0003.150201T0900Z-150202T1700Z/
MERCER-VENANGO-FOREST-
INCLUDING THE CITIES OF...GROVE CITY...FRANKLIN...TIONESTA
1042 PM EST SAT JAN 31 2015

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM SUNDAY TO
NOON EST MONDAY...

* SNOW ACCUMULATIONS...8 TO 10 INCHES.

* SNOW BEGINNING...LATE TONIGHT.

* PERIOD OF MOST INTENSE SNOW...SUNDAY AFTERNOON AND NIGHT.

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO 
  REDUCED VISIBILITY AND SNOW ACCUMULATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL
MAKE TRAVEL DANGEROUS. USE EXTREME CAUTION. REPORT SNOW
ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY CALLING...412-262-
1988...POSTING TO THE NWS PITTSBURGH FACEBOOK PAGE...OR USING
TWITTER @NWSPITTSBURGH.

&&

$$

OHZ041-PAZ013>016-020-022-023-011145-
/O.CON.KPBZ.WS.W.0003.150201T0900Z-150202T1700Z/
COLUMBIANA-LAWRENCE-BUTLER-CLARION-JEFFERSON PA-BEAVER-ARMSTRONG-
INDIANA-
INCLUDING THE CITIES OF...SALEM...NEW CASTLE...BUTLER...CLARION...
BROOKVILLE...BEAVER...KITTANNING...INDIANA
1042 PM EST SAT JAN 31 2015

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM SUNDAY TO
NOON EST MONDAY...

* ICE ACCUMULATIONS...A TRACE TO A TENTH OF AN INCH.

* SNOW ACCUMULATIONS...5 TO 9 INCHES.

* SNOW BEGINNING...LATE TONIGHT.

* PERIOD OF MOST INTENSE SNOW...SUNDAY AFTERNOON AND SUNDAY 
  NIGHT.

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO 
  ACCUMULATION OF SNOW AND ICE AND REDUCED VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL
MAKE TRAVEL DANGEROUS. IF YOU MUST VENTURE OUT AT ALL...USE
EXTREME CAUTION. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER
SERVICE BY CALLING...412-262-1988...POSTING TO THE NWS PITTSBURGH
FACEBOOK PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$

OHZ039-040-048>050-057>059-PAZ021-029-073-074-WVZ001>003-011145-
/O.CON.KPBZ.WW.Y.0010.150201T0900Z-150202T1700Z/
TUSCARAWAS-CARROLL-COSHOCTON-HARRISON-JEFFERSON OH-MUSKINGUM-
GUERNSEY-BELMONT-ALLEGHENY-WASHINGTON-WESTMORELAND-
WESTMORELAND RIDGES-HANCOCK-BROOKE-OHIO-
INCLUDING THE CITIES OF...NEW PHILADELPHIA...CARROLLTON...
COSHOCTON...CADIZ...STEUBENVILLE...ZANESVILLE...CAMBRIDGE...
ST. CLAIRSVILLE...PITTSBURGH METRO AREA...WASHINGTON...
GREENSBURG...LATROBE...LIGONIER...DONEGAL...WEIRTON...BETHANY...
WHEELING
1042 PM EST SAT JAN 31 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM SUNDAY TO
NOON EST MONDAY...

* ICE ACCUMULATIONS...A TRACE TO A TENTH OF AN INCH.

* SNOW ACCUMULATIONS...2 TO 5 INCHES.

* SNOW BEGINNING...LATE TONIGHT.

* PERIOD OF MOST INTENSE SNOW...SUNDAY AFTERNOON AND NIGHT. A 
  WINTRY MIX IS ALSO POSSIBLE SUNDAY NIGHT.

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO 
  ACCUMULATION OF A WINTRY MIX OF SNOW AND ICE...AND REDUCED 
  VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT SNOW...SLEET...OR FREEZING
RAIN WILL CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING
AND REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER
SERVICE BY CALLING 412-262-1988...POSTING TO THE NWS PITTSBURGH
FACEBOOK PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$
833 
WWUS41 KPBZ 010924
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PITTSBURGH PA
424 AM EST SUN FEB 1 2015

OHZ041-PAZ020-011730-
/O.CAN.KPBZ.WS.W.0003.000000T0000Z-150202T1700Z/
/O.EXA.KPBZ.WW.Y.0010.000000T0000Z-150202T1700Z/
COLUMBIANA-BEAVER-
INCLUDING THE CITIES OF...SALEM...BEAVER
424 AM EST SUN FEB 1 2015

...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON EST MONDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL NOON EST
MONDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED.

* ICE ACCUMULATIONS...A TRACE TO A TENTH OF AN INCH.

* SNOW ACCUMULATIONS...4 TO 6 INCHES.

* PERIOD OF MOST INTENSE SNOW...SUNDAY AFTERNOON AND NIGHT. A
  WINTRY MIX IS EXPECTED BY TONIGHT...AND A PERIOD OF RAIN IS ALSO
  POSSIBLE TONIGHT. PRECIPITATION WILL CHANGE BACK TO SNOW MONDAY
  MORNING.

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO 
  ACCUMULATION OF A WINTRY MIX OF SNOW AND ICE...AND REDUCED 
  VISIBILITY.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A
  WINTRY MIX OF SNOW AND ICE...AND REDUCED VISIBILITY.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT SNOW...SLEET...OR FREEZING
RAIN WILL CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING AND
REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE
BY CALLING 412-262-1988...POSTING TO THE NWS PITTSBURGH FACEBOOK
PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$

PAZ007>009-011730-
/O.CON.KPBZ.WS.W.0003.000000T0000Z-150202T1700Z/
MERCER-VENANGO-FOREST-
INCLUDING THE CITIES OF...GROVE CITY...FRANKLIN...TIONESTA
424 AM EST SUN FEB 1 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EST MONDAY...

* SNOW ACCUMULATIONS...6 TO 10 INCHES.

* PERIOD OF MOST INTENSE SNOW...SUNDAY AFTERNOON AND NIGHT.

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO 
  REDUCED VISIBILITY AND SNOW ACCUMULATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL
MAKE TRAVEL DANGEROUS. USE EXTREME CAUTION. REPORT SNOW
ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY CALLING...412-262-
1988...POSTING TO THE NWS PITTSBURGH FACEBOOK PAGE...OR USING
TWITTER @NWSPITTSBURGH.

&&

$$

PAZ013>016-022-023-011730-
/O.CON.KPBZ.WS.W.0003.000000T0000Z-150202T1700Z/
LAWRENCE-BUTLER-CLARION-JEFFERSON PA-ARMSTRONG-INDIANA-
INCLUDING THE CITIES OF...NEW CASTLE...BUTLER...CLARION...
BROOKVILLE...KITTANNING...INDIANA
424 AM EST SUN FEB 1 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EST MONDAY...

* ICE ACCUMULATIONS...A TRACE TO A TENTH OF AN INCH.

* SNOW ACCUMULATIONS...4 TO 8 INCHES.

* PERIOD OF MOST INTENSE SNOW...SUNDAY AFTERNOON AND SUNDAY NIGHT.
  PRECIPITATION WILL MIX WITH SNOW AND FREEZING RAIN TONIGHT...AND
  PERHAPS TO ALL RAIN FOR A TIME...BEFORE CHANGING BACK TO ALL
  SNOW MONDAY MORNING.

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO 
  ACCUMULATION OF SNOW AND ICE AND REDUCED VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL
MAKE TRAVEL DANGEROUS. IF YOU MUST VENTURE OUT AT ALL...USE
EXTREME CAUTION. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER
SERVICE BY CALLING...412-262-1988...POSTING TO THE NWS PITTSBURGH
FACEBOOK PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$

OHZ039-040-048>050-057>059-PAZ021-029-073-074-WVZ001>003-011730-
/O.CON.KPBZ.WW.Y.0010.000000T0000Z-150202T1700Z/
TUSCARAWAS-CARROLL-COSHOCTON-HARRISON-JEFFERSON OH-MUSKINGUM-
GUERNSEY-BELMONT-ALLEGHENY-WASHINGTON-WESTMORELAND-
WESTMORELAND RIDGES-HANCOCK-BROOKE-OHIO-
INCLUDING THE CITIES OF...NEW PHILADELPHIA...CARROLLTON...
COSHOCTON...CADIZ...STEUBENVILLE...ZANESVILLE...CAMBRIDGE...
ST. CLAIRSVILLE...PITTSBURGH METRO AREA...WASHINGTON...
GREENSBURG...LATROBE...LIGONIER...DONEGAL...WEIRTON...BETHANY...
WHEELING
424 AM EST SUN FEB 1 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST
MONDAY...

* ICE ACCUMULATIONS...A TRACE TO A TENTH OF AN INCH.

* SNOW ACCUMULATIONS...1 TO 4 INCHES.

* PERIOD OF MOST INTENSE SNOW...LATE THIS MORNING AND THIS
  AFTERNOON. A WINTRY MIX IS ALSO EXPECTED THIS AFTERNOON INTO
  EARLY EVENING. PRECIPITATION MAY CHANGE TO ALL RAIN TONIGHT...
  BEFORE CHANGING BACK TO SNOW MONDAY MORNING.

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO 
  ACCUMULATION OF A WINTRY MIX OF SNOW AND ICE...AND REDUCED 
  VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT SNOW...SLEET...OR FREEZING
RAIN WILL CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING
AND REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER
SERVICE BY CALLING 412-262-1988...POSTING TO THE NWS PITTSBURGH
FACEBOOK PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$
702 
WWUS41 KPBZ 011618
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PITTSBURGH PA
1118 AM EST SUN FEB 1 2015

PAZ007>009-020030-
/O.CON.KPBZ.WS.W.0003.000000T0000Z-150202T1700Z/
MERCER-VENANGO-FOREST-
INCLUDING THE CITIES OF...GROVE CITY...FRANKLIN...TIONESTA
1118 AM EST SUN FEB 1 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EST MONDAY...

* SNOW ACCUMULATIONS...6 TO 10 INCHES.

* PERIOD OF MOST INTENSE SNOW...THIS AFTERNOON THROUGH TONIGHT.

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO 
  REDUCED VISIBILITY AND SNOW ACCUMULATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL
MAKE TRAVEL DANGEROUS. REPORT SNOW ACCUMULATION TO THE NATIONAL
WEATHER SERVICE BY CALLING...412-262- 1988...POSTING TO THE NWS
PITTSBURGH FACEBOOK PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$

PAZ013>016-022-023-020030-
/O.CON.KPBZ.WS.W.0003.000000T0000Z-150202T1700Z/
LAWRENCE-BUTLER-CLARION-JEFFERSON PA-ARMSTRONG-INDIANA-
INCLUDING THE CITIES OF...NEW CASTLE...BUTLER...CLARION...
BROOKVILLE...KITTANNING...INDIANA
1118 AM EST SUN FEB 1 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EST MONDAY...

* ICE ACCUMULATIONS...A TRACE TO A TENTH OF AN INCH.

* SNOW ACCUMULATIONS...4 TO 8 INCHES.

* PERIOD OF MOST INTENSE SNOW...THIS AFTERNOON INTO TONIGHT. THE
  SNOW MAY MIX WITH FREEZING RAIN OR RAIN OVERNIGHT BEFORE
  CHANGING BACK TO SNOW MONDAY.

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO 
  ACCUMULATION OF SNOW AND ICE AND REDUCED VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL
MAKE TRAVEL DANGEROUS. REPORT SNOW ACCUMULATION TO THE NATIONAL
WEATHER SERVICE BY CALLING...412-262-1988...POSTING TO THE NWS
PITTSBURGH FACEBOOK PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$

OHZ039>041-048>050-057>059-PAZ020-021-029-073-074-WVZ001>003-
020030-
/O.CON.KPBZ.WW.Y.0010.000000T0000Z-150202T1700Z/
TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON-JEFFERSON OH-
MUSKINGUM-GUERNSEY-BELMONT-BEAVER-ALLEGHENY-WASHINGTON-
WESTMORELAND-WESTMORELAND RIDGES-HANCOCK-BROOKE-OHIO-
INCLUDING THE CITIES OF...NEW PHILADELPHIA...CARROLLTON...SALEM...
COSHOCTON...CADIZ...STEUBENVILLE...ZANESVILLE...CAMBRIDGE...
ST. CLAIRSVILLE...BEAVER...PITTSBURGH METRO AREA...WASHINGTON...
GREENSBURG...LATROBE...LIGONIER...DONEGAL...WEIRTON...BETHANY...
WHEELING
1118 AM EST SUN FEB 1 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST
MONDAY...

* ICE ACCUMULATIONS...A TRACE TO A TENTH OF AN INCH.

* SNOW ACCUMULATIONS...2 TO 4 INCHES.

* PERIOD OF MOST INTENSE SNOW...THROUGH THE AFTERNOON AND EARLY
  EVENING. SNOW MAY CHANGE TO RAIN WITH A BRIEF PERIOD OF FREEZING
  RAIN OVERNIGHT BEFORE CHANGING BACK TO SNOW MONDAY MORNING.

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO 
  ACCUMULATION OF A WINTRY MIX OF SNOW AND ICE...AND REDUCED 
  VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT SNOW...SLEET...OR FREEZING
RAIN WILL CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING
AND REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER
SERVICE BY CALLING 412-262-1988...POSTING TO THE NWS PITTSBURGH
FACEBOOK PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$
817 
WWUS41 KPBZ 012005
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PITTSBURGH PA
305 PM EST SUN FEB 1 2015

PAZ013-014-022-023-020415-
/O.CAN.KPBZ.WS.W.0003.000000T0000Z-150202T1700Z/
/O.EXA.KPBZ.WW.Y.0010.000000T0000Z-150202T1700Z/
LAWRENCE-BUTLER-ARMSTRONG-INDIANA-
INCLUDING THE CITIES OF...NEW CASTLE...BUTLER...KITTANNING...
INDIANA
305 PM EST SUN FEB 1 2015

...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON EST MONDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL NOON EST
MONDAY. A BRIEF PERIOD OF FREEZING RAIN IS ALSO POSSIBLE. THE
WINTER STORM WARNING HAS BEEN CANCELLED.

* ICE ACCUMULATIONS...A TRACE

* SNOW ACCUMULATIONS...3 TO 5 INCHES.

* PERIOD OF MOST INTENSE SNOW...THROUGH THIS EVENING. 

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO
  ACCUMULATION OF A WINTRY MIX OF SNOW AND ICE...AND REDUCED
  VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT SNOW OR FREEZING RAIN WILL
CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING AND REPORT
SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY
CALLING 412-262-1988...POSTING TO THE NWS PITTSBURGH FACEBOOK
PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$

OHZ039-048>050-057>059-PAZ029-WVZ001>003-012115-
/O.CAN.KPBZ.WW.Y.0010.000000T0000Z-150202T1700Z/
TUSCARAWAS-COSHOCTON-HARRISON-JEFFERSON OH-MUSKINGUM-GUERNSEY-
BELMONT-WASHINGTON-HANCOCK-BROOKE-OHIO-
INCLUDING THE CITIES OF...NEW PHILADELPHIA...COSHOCTON...CADIZ...
STEUBENVILLE...ZANESVILLE...CAMBRIDGE...ST. CLAIRSVILLE...
WASHINGTON...WEIRTON...BETHANY...WHEELING
305 PM EST SUN FEB 1 2015

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS CANCELLED THE
WINTER WEATHER ADVISORY.

SIGNIFICANT ACCUMULATING SNOW HAS ENDED.

$$

PAZ007>009-015-016-020415-
/O.CON.KPBZ.WS.W.0003.000000T0000Z-150202T1700Z/
MERCER-VENANGO-FOREST-CLARION-JEFFERSON PA-
INCLUDING THE CITIES OF...GROVE CITY...FRANKLIN...TIONESTA...
CLARION...BROOKVILLE
305 PM EST SUN FEB 1 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EST MONDAY...

* SNOW ACCUMULATIONS...6 TO 10 INCHES.

* PERIOD OF MOST INTENSE SNOW...THROUGH TONIGHT. 

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO 
  ACCUMULATION OF SNOW AND ICE AND REDUCED VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL
MAKE TRAVEL DANGEROUS. REPORT SNOW ACCUMULATION TO THE NATIONAL
WEATHER SERVICE BY CALLING...412-262-1988...POSTING TO THE NWS
PITTSBURGH FACEBOOK PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$

OHZ040-041-PAZ020-021-073-074-020415-
/O.CON.KPBZ.WW.Y.0010.000000T0000Z-150202T1700Z/
CARROLL-COLUMBIANA-BEAVER-ALLEGHENY-WESTMORELAND-
WESTMORELAND RIDGES-
INCLUDING THE CITIES OF...CARROLLTON...SALEM...BEAVER...
PITTSBURGH METRO AREA...GREENSBURG...LATROBE...LIGONIER...DONEGAL
305 PM EST SUN FEB 1 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST
MONDAY...

* ICE ACCUMULATIONS...A TRACE.

* SNOW ACCUMULATIONS...2 TO 5 INCHES.

* PERIOD OF MOST INTENSE SNOW...THIS EVENING. A BRIEF PERIOD OF
  FREEZING RAIN IS ALSO POSSIBLE THIS EVENING.

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO 
  ACCUMULATION OF A WINTRY MIX OF SNOW AND ICE...AND REDUCED 
  VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT SNOW OR FREEZING RAIN WILL
CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING AND REPORT
SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY
CALLING 412-262-1988...POSTING TO THE NWS PITTSBURGH FACEBOOK
PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$

07
687 
WWUS41 KPBZ 020218
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PITTSBURGH PA
918 PM EST SUN FEB 1 2015

PAZ007>009-015-016-021030-
/O.CON.KPBZ.WS.W.0003.000000T0000Z-150202T1700Z/
MERCER-VENANGO-FOREST-CLARION-JEFFERSON PA-
INCLUDING THE CITIES OF...GROVE CITY...FRANKLIN...TIONESTA...
CLARION...BROOKVILLE
918 PM EST SUN FEB 1 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EST MONDAY...

* SNOW ACCUMULATIONS...6 TO 10 INCHES.

* PERIOD OF MOST INTENSE SNOW...TONIGHT.

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO 
  ACCUMULATION OF SNOW AND ICE AND REDUCED VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL
MAKE TRAVEL DANGEROUS. REPORT SNOW ACCUMULATION TO THE NATIONAL
WEATHER SERVICE BY CALLING...412-262-1988...POSTING TO THE NWS
PITTSBURGH FACEBOOK PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$

MDZ001-WVZ041-021030-
/O.EXB.KPBZ.WW.Y.0010.000000T0000Z-150202T1300Z/
GARRETT-TUCKER-
INCLUDING THE CITIES OF...OAKLAND MD...PARSONS
918 PM EST SUN FEB 1 2015

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 AM EST MONDAY...

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A WINTER
WEATHER ADVISORY FOR FREEZING RAIN AND SNOW...WHICH IS IN EFFECT
UNTIL 8 AM EST MONDAY.

* ICE ACCUMULATIONS...A TRACE TO A TENTH OF AN INCH.

* SNOW ACCUMULATIONS...2 TO 4 INCHES.

* PERIOD OF MOST INTENSE SNOW/ICE...THIS EVENING.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO
  ACCUMULATION OF A WINTRY MIX OF SNOW AND ICE...AND REDUCED
  VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT SNOW OR FREEZING RAIN WILL
CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING AND REPORT
SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY
CALLING 412-262-1988...POSTING TO THE NWS PITTSBURGH FACEBOOK
PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$

OHZ040-041-PAZ013-014-020>023-073-074-021030-
/O.CON.KPBZ.WW.Y.0010.000000T0000Z-150202T1700Z/
CARROLL-COLUMBIANA-LAWRENCE-BUTLER-BEAVER-ALLEGHENY-ARMSTRONG-
INDIANA-WESTMORELAND-WESTMORELAND RIDGES-
INCLUDING THE CITIES OF...CARROLLTON...SALEM...NEW CASTLE...
BUTLER...BEAVER...PITTSBURGH METRO AREA...KITTANNING...INDIANA...
GREENSBURG...LATROBE...LIGONIER...DONEGAL
918 PM EST SUN FEB 1 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST
MONDAY...

* ICE ACCUMULATIONS...A TRACE TO A TENTH OF AN INCH.

* SNOW ACCUMULATIONS...3 TO 5 INCHES.

* PERIOD OF MOST INTENSE ICE...THIS EVENING.

* PERIOD OF MOST INTENSE SNOW...BETWEEN MIDNIGHT AND SUNRISE
  MONDAY.

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO 
  ACCUMULATION OF A WINTRY MIX OF SNOW AND ICE...AND REDUCED 
  VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT SNOW OR FREEZING RAIN WILL
CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING AND REPORT
SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY
CALLING 412-262-1988...POSTING TO THE NWS PITTSBURGH FACEBOOK
PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$
555 
WWUS41 KPBZ 020637
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PITTSBURGH PA
137 AM EST MON FEB 2 2015

PAZ007>009-015-016-021700-
/O.CON.KPBZ.WS.W.0003.000000T0000Z-150202T1700Z/
MERCER-VENANGO-FOREST-CLARION-JEFFERSON PA-
INCLUDING THE CITIES OF...GROVE CITY...FRANKLIN...TIONESTA...
CLARION...BROOKVILLE
137 AM EST MON FEB 2 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EST TODAY...

* SNOW ACCUMULATIONS...6 TO 10 INCHES.

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO 
  ACCUMULATION OF SNOW AND ICE AND REDUCED VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL
MAKE TRAVEL DANGEROUS. REPORT SNOW ACCUMULATION TO THE NATIONAL
WEATHER SERVICE BY CALLING...412-262-1988...POSTING TO THE NWS
PITTSBURGH FACEBOOK PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$

MDZ001-WVZ041-021700-
/O.EXT.KPBZ.WW.Y.0010.000000T0000Z-150203T0000Z/
GARRETT-TUCKER-
INCLUDING THE CITIES OF...OAKLAND MD...PARSONS
137 AM EST MON FEB 2 2015

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* ICE ACCUMULATIONS...AN ADDITIONAL TRACE IS POSSIBLE THIS MORNING.

* SNOW ACCUMULATIONS...2 TO 4 INCHES.

* SNOW BEGINNING...AROUND 8AM MONDAY.

* SNOW ENDING...MONDAY EVENING.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO
  ACCUMULATION OF A WINTRY MIX OF SNOW AND ICE...AND REDUCED
  VISIBILITY. SNOW THIS MORNING AND AFTERNOON WILL QUICKLY COAT
  ROADWAYS AND REDUCE VISIBILITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT SNOW OR FREEZING RAIN WILL
CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING AND REPORT
SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY
CALLING 412-262-1988...POSTING TO THE NWS PITTSBURGH FACEBOOK
PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$

OHZ040-041-PAZ013-014-020>023-073-074-021700-
/O.CON.KPBZ.WW.Y.0010.000000T0000Z-150202T1700Z/
CARROLL-COLUMBIANA-LAWRENCE-BUTLER-BEAVER-ALLEGHENY-ARMSTRONG-
INDIANA-WESTMORELAND-WESTMORELAND RIDGES-
INCLUDING THE CITIES OF...CARROLLTON...SALEM...NEW CASTLE...
BUTLER...BEAVER...PITTSBURGH METRO AREA...KITTANNING...INDIANA...
GREENSBURG...LATROBE...LIGONIER...DONEGAL
137 AM EST MON FEB 2 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST
TODAY...

* SNOW ACCUMULATIONS...3 TO 5 INCHES.

* PERIOD OF MOST INTENSE SNOW...BETWEEN MIDNIGHT AND SUNRISE 
  MONDAY.

* SNOW ENDING...MONDAY AFTERNOON.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO 
  ACCUMULATION OF A WINTRY MIX OF SNOW AND ICE...AND REDUCED 
  VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT SNOW OR FREEZING RAIN WILL
CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING AND REPORT
SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY
CALLING 412-262-1988...POSTING TO THE NWS PITTSBURGH FACEBOOK
PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$
285 
WWUS41 KPBZ 021532
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PITTSBURGH PA
1032 AM EST MON FEB 2 2015

PAZ007>009-015-016-021645-
/O.CAN.KPBZ.WS.W.0003.000000T0000Z-150202T1700Z/
MERCER-VENANGO-FOREST-CLARION-JEFFERSON PA-
INCLUDING THE CITIES OF...GROVE CITY...FRANKLIN...TIONESTA...
CLARION...BROOKVILLE
1032 AM EST MON FEB 2 2015

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS CANCELLED THE
WINTER STORM WARNING.

ONLY LIGHT ADDITIONAL SNOW ACCUMULATION ARE EXPECTED THIS
AFTERNOON WITH GUSTY WINDS. 

$$

OHZ040-041-PAZ013-014-020>023-073-074-021645-
/O.CAN.KPBZ.WW.Y.0010.000000T0000Z-150202T1700Z/
CARROLL-COLUMBIANA-LAWRENCE-BUTLER-BEAVER-ALLEGHENY-ARMSTRONG-
INDIANA-WESTMORELAND-WESTMORELAND RIDGES-
INCLUDING THE CITIES OF...CARROLLTON...SALEM...NEW CASTLE...
BUTLER...BEAVER...PITTSBURGH METRO AREA...KITTANNING...INDIANA...
GREENSBURG...LATROBE...LIGONIER...DONEGAL
1032 AM EST MON FEB 2 2015

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS CANCELLED THE
WINTER WEATHER ADVISORY.

ONLY LIGHT ADDITIONAL SNOW ACCUMULATION ARE EXPECTED THIS
AFTERNOON WITH GUSTY WINDS.

$$

MDZ001-WVZ041-022345-
/O.CON.KPBZ.WW.Y.0010.000000T0000Z-150203T0000Z/
GARRETT-TUCKER-
INCLUDING THE CITIES OF...OAKLAND MD...PARSONS
1032 AM EST MON FEB 2 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* SNOW ACCUMULATIONS...2 TO 4 INCHES.

* SNOW BEGINNING...THIS AFTERNOON. 

* SNOW ENDING...THIS EVENING. 

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO
  ACCUMULATION OF A WINTRY MIX OF SNOW AND ICE...AND REDUCED
  VISIBILITY. SNOW WILL QUICKLY COAT ROADWAYS AND REDUCE
  VISIBILITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT SNOW OR FREEZING RAIN WILL
CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING AND REPORT
SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY
CALLING 412-262-1988...POSTING TO THE NWS PITTSBURGH FACEBOOK
PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

$$

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 Pittsburgh, PA wrote its last area forecast discussion before this winter storm warning went out at Jan 31, 10:55 AM EST, 3 hours 33 minutes earlier.

Area forecast discussion, Jan 31, 10:55 AM EST, 3 hours 33 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
1055 AM EST SAT JAN 31 2015

.SYNOPSIS...
HIGH PRESSURE WILL BUILD IN THROUGH THIS EVENING. LOW PRESSURE
WILL BRING WINTRY WEATHER SUNDAY INTO MONDAY.

&&

.NEAR TERM /THROUGH TONIGHT/...
LINGERING STRATOCU FM DUJ TO LBE SHOULD CLEAR BY ERLY AFTN AS HIGH
PRES CONTS TO BLD IN. OTRW...MAINLY CLEAR SKIES AND DRY WEA ARE
EXPD THRU THE DAY WITH BELOW AVG TEMPS CONTG.

PREVIOUS...
TONIGHT...FRONTAL BOUNDARY BRIDGING FROM WEAK LOW DROPPING ACROSS
EASTERN GREAT LAKES...TO THE MORE SIGNIFICANT SURFACE SYSTEM
MOVING INTO MISSOURI... DROPS TOWARD THE NORTHERN CWA. AS THIS
OCCURS...MOISTURE BEGINS TO STREAK IN FROM THE WEST ESPECIALLY
AFTER 06Z. BEGINNINGS OF DEEP LIFT DRIVEN VIA ISENTROPIC ASCENT
AND RRQ OF H250 JET TO THE NORTH WILL START TO SPREAD SNOW ACROSS
THE CWA. SLOWED POPS SLIGHTLY FROM PREVIOUS FORECAST BUT STILL
BRING LIKELY POPS TO PIT/HLG BY 12Z. SNOW COULD START EARLY ENOUGH
TO GET A FRESH INCH ON THE GROUND NEAR ZZV BY 12Z...WITH LESSER
AMOUNTS TO THE NORTH AND EAST.

TEMPERATURES MODIFIED SLIGHTLY FROM PREVIOUS FORECAST...MAINLY BY
BLENDING IN NAM/MET. CL

&&

.SHORT TERM /SUNDAY THROUGH MONDAY/...
PRECIPITATION WILL START OVERSPREADING THE AREA WEST TO EAST ACROSS
THE SFC COLD FRONT SUNDAY AHEAD OF THE VIGOROUS LOW MOVING OUT OF
THE PLAINS. SNOW WILL BE THE PRIMARY PRECIPITATION TYPE AS THE EVENT
BEGINS EARLY SUN. LATER SUN AFTERNOON SNOW WILL REMAIN NORTH OF
I-70...BUT A MIX OR PLAIN RAIN CAN BE EXPECTED SOUTH OF I-70 AS
TEMPERATURES WARM.

THE LOW INTENSIFIES AS IT ENTERS THE OHIO RIVER VALLEY...BOLSTERED
ALOFT AS TWO JET STREAKS TEMPORARILY PHASE TO MAXIMIZE UPPER LEVEL
DIVERGENCE. INTENSIFICATION OF THE LOW WILL AMPLIFY THE LLVL WIND
FIELD RESULTING IN A STRONG 50+ KT H85 JET NOSING INTO SWPA.
NAM/SREF/GFS ALL SHOW THE TRACK OF THE H85 LOW A LITTLE FURTHER
NORTH THAN THAT OF THE ECMWF AND NORTH OF PREVIOUS RUNS. AS THE
CLOSED H85 LOW TRACKS THROUGH NCENTRAL OHIO...THIS MEANS THAT WAA
WILL BRING POSITIVE H85 ISOTHERMS INTO NRN WV AND SWPA THROUGH EARLY
MON MORNING. THIS KEEPS RAIN OR A RAIN/SNOW MIX SOUTH OF I-70 BEFORE
THE COLD AIR PUSHES IN ON THE BACKSIDE OF THE LOW MON MORNING. THIS
SLIGHTLY WARMER SOLN MARKS THE LARGEST CHANGE MADE TO THE PREVIOUS
FORECAST.

LARGELY KEPT THE QPF PLACEMENT AND NUMBERS THE SAME...BLENDING THE
LATEST WPC GUIDANCE WITH THE PREVIOUS NUMBERS. THE WARMER AIR
INVADING UP THE WRN SLOPES OF THE RIDGES WILL WORK TO KEEP OUR SERN
ZONES RAIN LONGER AND ULTIMATELY CUT INTO SNOW TOTALS FOR THE
DURATION OF THE EVENT. HOW FAR NORTH THAT WARM AIR IS ABLE TO INVADE
IS ANOTHER QUESTION. IF THE H85 LOW FOLLOWS THE CURRENT ECMWF
TRACK...THE PGH METRO WILL STAY NEARLY ALL SNOW. IF IT FOLLOWS THE
MORE NORTHERN TRACK...SEVERAL HOURS OF RAIN DURING THE TIME OF BEST
PRECIPITATION COULD CUT INTO THE PGH METRO TOTALS AS WELL.

ALL TOLD...A GENERAL 8-10" NORTH ALONG THE I-80
CORRIDOR...BUT TIGHTENED THE ACCUMULATION GRADIENT NEAR THE PGH
METRO WITH NRN ALLEGHENY COUNTY IN THE 5-7" RANGE AND SRN PORTIONS
OF THE COUNTY IN THE 3-5" RANGE. TRIMMED BACK TOTALS ACROSS THE SRN
EXTENT OF THE CWA AS WELL WITH MANY LOCATIONS IN THE 1-3" RANGE. IF
THE WARMER SOLNS WIN OUT...NUMBERS ACROSS THE SOUTH COULD BE CLOSER
TO THE 1" SIDE OF THAT RANGE. WITH QUESTIONS SURROUNDING THE TRACK
AND EXTENT OF WARM AIR...A WELL COLLABORATED DECISION WAS MADE TO
HOLD WITH THE WINTER STORM WATCH IN PLACE.
TAX

&&

.LONG TERM /MONDAY NIGHT THROUGH FRIDAY/...
LLVL MOISTURE WILL LINGER IN THE HIGH ACROSS THE HIGH TERRAIN
THROUGH THE PRE-DAWN HOURS TUES...BUT ANY CHC OF PRECIPITATION WILL
BE FLEETING AS SFC HIGH PRESSURE WILL BUILD IN FROM THE WEST. NRN
AXIS OF THE SFC RIDGE WILL QUICKLY SHIFT EAST OF THE AREA TUES UNDER
ZONAL FLOW ALOFT. SERN EXTENT OF THE HIGH WILL HOLD BACK TO THE
WEST...AND WILL TRY TO HOLD THE NEXT SYSTEM OFF TO OUR NORTH. A WEAK
SFC LOW PASSES NORTH WEDS...BUT WILL WORK TO AMPLIFY THE UPPER TROF.
THE TRAILING COLD FRONT SWINGS THROUGH WEDS NIGHT/THURS
MORNING...BRINGING THE BEST CHANCE OF POPS IN THE EXTENDED PERIOD.
MUCH COLDER AIR POURS IN BEHIND THE FRONT AS A STOUT HIGH PRESSURE
CENTERS OVERHEAD. TEMPERATURES EXPECTED TO BE WELL BELOW AVERAGE
FROM MID-WEEK THROUGH THE END OF THE 7 DAY PERIOD.
TAX

&&

.AVIATION /16Z SATURDAY THROUGH WEDNESDAY/...
FINGERS OF STRATOCU ARE STARTING TO STREAM IN FROM ACROSS LAKE
ERIE. EXPECT THIS VARIABLE AND BORDERLINE MVFR CIG TO IMPACT
SEVERAL TERMINALS DURING THE MORNING AND EARLY AFTERNOON AS A WEAK
WARM FRONT LIFTS THROUGH. VFR CONDITIONS SHOULD RETURN BY MID TO
LATE AFTERNOON...BUT MID/HI CLOUDS WILL BE ON THE INCREASE AHEAD
OF OUR SIGNIFICANT SUNDAY STORM. SNOW WILL START ARRIVING FROM THE
WEST AFTER MIDNIGHT AND SPREAD EASTWARD WITH TIME...WITH MVFR
CIG/VIS DROPPING TO IFR WITHIN AN HOUR OR TWO AFTER SNOW
COMMENCES. AREAS EAST OF PIT/MGW MAY AVOID IFR UNTIL AFTER 12Z.
WINDS WILL GENERALLY BE 10 KNOTS OR LESS FROM THE SOUTHWEST
THROUGH MUCH OF THE TAF PERIOD. CL

.OUTLOOK.../SATURDAY NIGHT THROUGH WEDNESDAY/...
WIDESPREAD RESTRICTIONS CAN BE EXPECTED INTO MONDAY AS A LOW
PRESSURE SYSTEM CROSSES THE REGION.

&&

.PBZ WATCHES/WARNINGS/ADVISORIES...
MD...WINTER STORM WATCH FROM LATE TONIGHT THROUGH MONDAY MORNING
     FOR MDZ001.
OH...WINTER STORM WATCH FROM LATE TONIGHT THROUGH MONDAY MORNING
     FOR OHZ039>041-048>050-057>059.
PA...WINTER STORM WATCH FROM LATE TONIGHT THROUGH MONDAY MORNING
     FOR PAZ007>009-013>016-020>023-029-073>076.
WV...WINTER STORM WATCH FROM LATE TONIGHT THROUGH MONDAY MORNING
     FOR WVZ001>003-023-041.

&&
Hazardous weather outlook, Jan 31, 8:31 AM EST, 5 hours 57 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE PITTSBURGH PA
831 AM EST SAT JAN 31 2015

MDZ001-OHZ039>041-048>050-057>059-PAZ007>009-013>016-020>023-029-
073>076-WVZ001>003-023-041-011345-
GARRETT-TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON-
JEFFERSON OH-MUSKINGUM-GUERNSEY-BELMONT-MERCER-VENANGO-FOREST-
LAWRENCE-BUTLER-CLARION-JEFFERSON PA-BEAVER-ALLEGHENY-ARMSTRONG-
INDIANA-WASHINGTON-WESTMORELAND-WESTMORELAND RIDGES-FAYETTE-
FAYETTE RIDGES-HANCOCK-BROOKE-OHIO-PRESTON-TUCKER-
831 AM EST SAT JAN 31 2015

...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND...EAST
CENTRAL OHIO...NORTHWEST PENNSYLVANIA...SOUTHWEST
PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA...NORTHERN WEST VIRGINIA
AND NORTHERN PANHANDLE OF WEST VIRGINIA.

.DAY ONE...TODAY AND TONIGHT.

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

   WINTER STORM WATCH.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV 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.

OHZ068-069-PAZ031-WVZ004-012-021-022-011345-
NOBLE-MONROE-GREENE-MARSHALL-WETZEL-MARION-MONONGALIA-
831 AM EST SAT JAN 31 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL OHIO...SOUTHWEST
PENNSYLVANIA...NORTHERN WEST VIRGINIA AND NORTHERN PANHANDLE OF
WEST VIRGINIA.

.DAY ONE...TODAY AND TONIGHT.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

A LIGHT WINTRY MIX IS POSSIBLE SUNDAY AND SUNDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

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

07

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 31, 2:28 PM ESTWinter Weather AdvisoryPBZAllegheny, Armstrong, Beaver, Butler, Lawrence, Washington and 1 more53 hr

Nearby

Winter Storm Warnings in Pennsylvania, 2015Winter Storm Warnings in Ohio, 2015Every winter storm warning in 2015

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.