Alert archive / Pennsylvania / Winter Storm Warnings in 2012
Winter Storm Warning 4, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this winter storm warning at Apr 22, 2012, 2:27 PM EDT for 10 counties in Pennsylvania. It took effect at Apr 23, 2012, 2:00 AM EDT. It was in force for 23 hr. 17 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
- Apr 22, 2012, 2:27 PM EDT (18:27 UTC)
- In effect from
- Apr 23, 2012, 2:00 AM EDT
- Expired
- Apr 24, 2012, 1:17 AM EDT
- In force
- 23 hr
- Issued by
- NWS Pittsburgh, PA
Counties Armstrong County, PA, Butler County, PA, Clarion County, PA, Fayette County, PA, Forest County, PA, Jefferson County, PA, Lawrence County, PA, Mercer County, PA, Venango County, PA, Westmoreland County, PA
The radar
The Pittsburgh radar (KPBZ), 67 km from the middle of the area, began a volume at 18:31 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 23, 6:28 AM EDT | SNOW 1.5 | 1 N Whitney, PA | |
| Apr 23, 6:29 AM EDT | SNOW 1.5 | 2 E Greensburg, PA | |
| Apr 23, 6:35 AM EDT | SNOW 3 | 3 Ese Champion, PA | |
| Apr 23, 6:35 AM EDT | SNOW 5 | 3 Ese Champion, PA | |
| Apr 23, 6:36 AM EDT | SNOW 2 | Mill Run, PA | |
| Apr 23, 6:56 AM EDT | SNOW 3 | Donegal, PA | |
| Apr 23, 7:00 AM EDT | SNOW 4 | 2 E Acme, PA | |
| Apr 23, 7:01 AM EDT | SNOW 4 | 2 E Acme, PA | |
| Apr 23, 7:08 AM EDT | SNOW 5 | 3 E Laughlintown, PA | |
| Apr 23, 7:24 AM EDT | SNOW 1.6 | Farmington, PA | SNOW WATER EQUIVALENT 0.32 INCHES |
| Apr 23, 10:36 AM EDT | SNOW 8 | Acme, PA | |
| Apr 23, 10:45 AM EDT | HEAVY SNOW 0 | Sigel, PA | TREES DOWN DUE TO HEAVY SNOW ON RISHER ROAD |
| Apr 23, 11:51 AM EDT | SNOW 9 | Acme, PA | SNOW DEPTH. |
| Apr 23, 12:45 PM EDT | SNOW 4.6 | Farmington, PA | SNOW DEPTH. 3.0 NEW SINCE 7 AM. 33 DEGREES. |
| Apr 23, 2:02 PM EDT | SNOW 7 | Rodney, PA | SNOW DEPTH. |
| Apr 23, 2:30 PM EDT | SNOW 5 | Marienville, PA | |
| Apr 23, 3:32 PM EDT | SNOW 4 | 4 E Latrobe, 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 (KPIT), launched 12:00Z, 6.5 hours before the alert went out and 71 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
- 475 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
139 WWUS41 KPBZ 221827 WSWPBZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE PITTSBURGH PA 227 PM EDT SUN APR 22 2012 ...HEAVY AND WET SNOWFALL TO IMPACT AREA... .STRONG LOW PRESSURE IS FORECAST TO MOVE NORTHWARD THROUGH EASTERN PENNSYLVANIA TONIGHT. THIS SYSTEM WILL SPREAD RAIN ACROSS THE AREA LATER THIS EVENING THAT WILL CHANGE TO SNOW LATE TONIGHT AND MONDAY MORNING. THE SNOW COULD BECOME HEAVY AT TIMES... ESPECIALLY MONDAY MORNING. A HEAVY...WET ACCUMULATION OF SNOW IS EXPECTED...WITH THE LARGEST ACCUMULATIONS LIKELY IN THE HIGHER ELEVATIONS GENERALLY EAST OF PITTSBURGH. THIS MAY CAUSE SIGNIFICANT PROBLEMS WITH THE DOWNING OF TREE LIMBS THAT HAVE DEVELOPED LEAVES...WHICH MAY IN TURN SPAWN POWER OUTAGES. SOME TRAVEL DIFFICULTIES CAN BE EXPECTED MONDAY MORNING AND AGAIN MONDAY NIGHT AS WELL. MDZ001-PAZ074-076-WVZ023-041-230300- /O.UPG.KPBZ.WS.A.0003.120423T0400Z-120424T0400Z/ /O.NEW.KPBZ.WS.W.0004.120423T0600Z-120424T0600Z/ GARRETT-WESTMORELAND RIDGES-FAYETTE RIDGES-PRESTON-TUCKER- INCLUDING THE CITIES OF...OAKLAND MD...GRANTSVILLE...LIGONIER... DONEGAL...NEW FLORENCE...ACME...CHAMPION...NORMALVILLE... FARMINGTON...OHIOPYLE...MARKLEYSBURG...KINGWOOD...TERRA ALTA... PARSONS...DAVIS...THOMAS 227 PM EDT SUN APR 22 2012 ...WINTER STORM WARNING IN EFFECT FROM 2 AM MONDAY TO 2 AM EDT TUESDAY... THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 2 AM MONDAY TO 2 AM EDT TUESDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * HAZARD TYPES...HEAVY WET SNOW. * ACCUMULATIONS...6 TO 10 INCHES OF SNOW...WITH UP TO A FOOT POSSIBLE IN THE HIGHEST ELEVATIONS. * TIMING...RAIN WILL DEVELOP BY THIS EVENING AND CHANGE TO SNOW OVERNIGHT. THE HEAVIEST SNOW WILL FALL THROUGH THE MORNING HOURS ON MONDAY. * IMPACTS...THE COMBINATION OF STRONG WINDS AND A HEAVY WET SNOW WILL BRING DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 20 MPH WITH GUSTS UP TO 35 MPH. * TEMPERATURES...IN THE LOWER 30S. * VISIBILITIES...MAY BE REDUCED TO BELOW ONE QUARTER OF A MILE IN THE HEAVIEST SNOW ON MONDAY MORNING. 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 TOLL FREE...1-877-633-6772. && $$ PAZ007>009-013>016-022-023-073-075-230300- /O.UPG.KPBZ.WS.A.0003.120423T0400Z-120424T0400Z/ /O.NEW.KPBZ.WS.W.0004.120423T0900Z-120424T0600Z/ MERCER-VENANGO-FOREST-LAWRENCE-BUTLER-CLARION-JEFFERSON PA- ARMSTRONG-INDIANA-WESTMORELAND-FAYETTE- INCLUDING THE CITIES OF...SHARON...HERMITAGE...GROVE CITY... GREENVILLE...FARRELL...OIL CITY...FRANKLIN...SUGARCREEK... TIONESTA...NEW CASTLE...ELLWOOD CITY...BUTLER...ZELIENOPLE... CLARION...PUNXSUTAWNEY...BROOKVILLE...REYNOLDSVILLE...BROCKWAY... KITTANNING...FORD CITY...LEECHBURG...FREEPORT...APOLLO... INDIANA...GREENSBURG...NEW KENSINGTON...JEANNETTE...LATROBE... MONESSEN...UNIONTOWN...CONNELLSVILLE...POINT MARION 227 PM EDT SUN APR 22 2012 ...WINTER STORM WARNING IN EFFECT FROM 5 AM MONDAY TO 2 AM EDT TUESDAY... THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 5 AM MONDAY TO 2 AM EDT TUESDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * HAZARD TYPES...HEAVY WET SNOW. * ACCUMULATIONS...4 TO 8 INCHES OF SNOW. * TIMING...RAIN WILL DEVELOP THIS EVENING AND CHANGE TO SNOW OVERNIGHT. THE HEAVIEST SNOW WILL FALL THROUGH THE MORNING HOURS ON MONDAY. * IMPACTS...THE COMBINATION OF STRONG WINDS AND A HEAVY WET SNOW WILL BRING DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * TEMPERATURES...IN THE LOWER TO MID 30S. * VISIBILITIES...MAY BE REDUCED TO LESS THAN ONE QUARTER OF A MILE AT TIMES THROUGH THE DAY ON MONDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL MAKE TRAVEL DANGEROUS. IF YOU MUST VENTURE OUT AT ALL...USE EXTREME CAUTION. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. && $$ PAZ020-021-230300- /O.UPG.KPBZ.WS.A.0003.120423T0400Z-120424T0400Z/ /O.NEW.KPBZ.WW.Y.0011.120423T0900Z-120424T0600Z/ BEAVER-ALLEGHENY- INCLUDING THE CITIES OF...ALIQUIPPA...BEAVER FALLS...AMBRIDGE... MONACA...BEAVER...PITTSBURGH METRO AREA 227 PM EDT SUN APR 22 2012 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM MONDAY TO 2 AM EDT TUESDAY... THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 AM MONDAY TO 2 AM EDT TUESDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * HAZARD TYPES...HEAVY WET SNOW. * ACCUMULATIONS...2 TO 4 INCHES OF SNOW...WITH THE HIGHER AMOUNTS ON THE HILLS AND AWAY FROM URBAN CENTERS. * TIMING...RAIN WILL DEVELOP THIS EVENING AND CHANGE TO SNOW OVERNIGHT. THE HEAVIEST SNOW WILL FALL THROUGH THE MORNING HOURS ON MONDAY. * IMPACTS...THE COMBINATION OF STRONG WINDS AND A HEAVY WET SNOW WILL BRING DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * TEMPERATURES...IN THE LOWER TO MID 30S. * VISIBILITIES...MAY BE REDUCED TO LESS THAN ONE QUARTER OF A MILE AT TIMES DURING THE HEAVIEST SNOWFALL ON MONDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT SNOWFALL WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITY. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. && $$ PAZ029-031-WVZ021-022-230300- /O.NEW.KPBZ.WW.Y.0011.120423T0900Z-120424T0600Z/ WASHINGTON-GREENE-MARION-MONONGALIA- INCLUDING THE CITIES OF...WASHINGTON...CANONSBURG...DONORA... CALIFORNIA...CHARLEROI...MONONGAHELA...MCMURRAY...WAYNESBURG... FAIRDALE...FAIRMONT...MORGANTOWN 227 PM EDT SUN APR 22 2012 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM MONDAY TO 2 AM EDT TUESDAY... THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 AM MONDAY TO 2 AM EDT TUESDAY. * HAZARD TYPES...HEAVY WET SNOW. * ACCUMULATIONS...2 TO 4 INCHES OF SNOW...WITH THE HIGHER AMOUNTS ON THE HILLS AND AWAY FROM URBAN CENTERS. * TIMING...RAIN WILL DEVELOP THIS EVENING AND CHANGE TO SNOW OVERNIGHT. THE HEAVIEST SNOW WILL FALL THROUGH THE MORNING HOURS ON MONDAY. * IMPACTS...THE COMBINATION OF STRONG WINDS AND A HEAVY WET SNOW WILL BRING DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * TEMPERATURES...IN THE LOWER TO MID 30S. * VISIBILITIES...MAY BE REDUCED TO LESS THAN ONE QUARTER OF A MILE AT TIMES DURING THE HEAVIEST SNOWFALL ON MONDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT SNOWFALL WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITY. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. && $$
10 follow-up statements
918 WWUS41 KPBZ 222323 WSWPBZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE PITTSBURGH PA 723 PM EDT SUN APR 22 2012 ...HEAVY AND WET SNOWFALL TO IMPACT AREA... .STRONG LOW PRESSURE IS FORECAST TO MOVE NORTHWARD THROUGH EASTERN PENNSYLVANIA TONIGHT. THIS SYSTEM WILL SPREAD RAIN ACROSS THE AREA LATER THIS EVENING THAT WILL CHANGE TO SNOW LATE TONIGHT AND MONDAY MORNING. THE SNOW COULD BECOME HEAVY AT TIMES... ESPECIALLY MONDAY MORNING. A HEAVY...WET ACCUMULATION OF SNOW IS EXPECTED...WITH THE LARGEST ACCUMULATIONS LIKELY IN THE HIGHER ELEVATIONS GENERALLY EAST OF PITTSBURGH. THIS MAY CAUSE SIGNIFICANT PROBLEMS WITH THE DOWNING OF TREE LIMBS THAT HAVE DEVELOPED LEAVES...WHICH MAY IN TURN SPAWN POWER OUTAGES. SOME TRAVEL DIFFICULTIES CAN BE EXPECTED MONDAY MORNING AND AGAIN MONDAY NIGHT AS WELL. MDZ001-PAZ074-076-WVZ023-041-230730- /O.CON.KPBZ.WS.W.0004.120423T0600Z-120424T0600Z/ GARRETT-WESTMORELAND RIDGES-FAYETTE RIDGES-PRESTON-TUCKER- INCLUDING THE CITIES OF...OAKLAND MD...GRANTSVILLE...LIGONIER... DONEGAL...NEW FLORENCE...ACME...CHAMPION...NORMALVILLE... FARMINGTON...OHIOPYLE...MARKLEYSBURG...KINGWOOD...TERRA ALTA... PARSONS...DAVIS...THOMAS 723 PM EDT SUN APR 22 2012 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 2 AM MONDAY TO 2 AM EDT TUESDAY... * HAZARD TYPES...HEAVY WET SNOW. * ACCUMULATIONS...8 TO 12 INCHES OF SNOW. * TIMING...RAIN WILL DEVELOP LATE THIS EVENING AND CHANGE TO SNOW OVERNIGHT. THE HEAVIEST SNOW WILL FALL THROUGH THE MORNING HOURS ON MONDAY. * IMPACTS...THE COMBINATION OF STRONG WINDS AND A HEAVY WET SNOW WILL BRING DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * TEMPERATURES...IN THE LOWER 30S. * VISIBILITIES...MAY BE REDUCED TO BELOW ONE QUARTER OF A MILE IN THE HEAVIEST SNOW ON MONDAY MORNING. 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 TOLL FREE...1-877-633-6772. && $$ PAZ007>009-013>016-022-023-073-075-230730- /O.CON.KPBZ.WS.W.0004.120423T0900Z-120424T0600Z/ MERCER-VENANGO-FOREST-LAWRENCE-BUTLER-CLARION-JEFFERSON PA- ARMSTRONG-INDIANA-WESTMORELAND-FAYETTE- INCLUDING THE CITIES OF...SHARON...HERMITAGE...GROVE CITY... GREENVILLE...FARRELL...OIL CITY...FRANKLIN...SUGARCREEK... TIONESTA...NEW CASTLE...ELLWOOD CITY...BUTLER...ZELIENOPLE... CLARION...PUNXSUTAWNEY...BROOKVILLE...REYNOLDSVILLE...BROCKWAY... KITTANNING...FORD CITY...LEECHBURG...FREEPORT...APOLLO... INDIANA...GREENSBURG...NEW KENSINGTON...JEANNETTE...LATROBE... MONESSEN...UNIONTOWN...CONNELLSVILLE...POINT MARION 723 PM EDT SUN APR 22 2012 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM MONDAY TO 2 AM EDT TUESDAY... * HAZARD TYPES...HEAVY WET SNOW. * ACCUMULATIONS...4 TO 8 INCHES OF SNOW. * TIMING...RAIN WILL DEVELOP THIS EVENING AND CHANGE TO SNOW OVERNIGHT. THE HEAVIEST SNOW WILL FALL THROUGH THE MORNING HOURS ON MONDAY. * IMPACTS...THE COMBINATION OF STRONG WINDS AND A HEAVY WET SNOW WILL BRING DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 45 MPH. * TEMPERATURES...IN THE LOWER 30S. * VISIBILITIES...MAY BE REDUCED TO LESS THAN ONE QUARTER OF A MILE AT TIMES THROUGH THE DAY ON MONDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL MAKE TRAVEL DANGEROUS. IF YOU MUST VENTURE OUT AT ALL...USE EXTREME CAUTION. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. && $$ PAZ020-021-029-031-WVZ021-022-230730- /O.CON.KPBZ.WW.Y.0011.120423T0900Z-120424T0600Z/ BEAVER-ALLEGHENY-WASHINGTON-GREENE-MARION-MONONGALIA- INCLUDING THE CITIES OF...ALIQUIPPA...BEAVER FALLS...AMBRIDGE... MONACA...BEAVER...PITTSBURGH METRO AREA...WASHINGTON... CANONSBURG...DONORA...CALIFORNIA...CHARLEROI...MONONGAHELA... MCMURRAY...WAYNESBURG...FAIRDALE...FAIRMONT...MORGANTOWN 723 PM EDT SUN APR 22 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM MONDAY TO 2 AM EDT TUESDAY... * HAZARD TYPES...HEAVY WET SNOW. * ACCUMULATIONS...3 TO 5 INCHES OF SNOW...WITH THE HIGHER AMOUNTS ON THE HILLS AND AWAY FROM URBAN CENTERS. * TIMING...RAIN WILL DEVELOP LATE THIS EVENING AND CHANGE TO SNOW OVERNIGHT. THE HEAVIEST SNOW WILL FALL THROUGH THE MORNING HOURS ON MONDAY. * IMPACTS...THE COMBINATION OF STRONG WINDS AND A HEAVY WET SNOW WILL BRING DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 20 MPH WITH GUSTS UP TO 40 MPH. * TEMPERATURES...IN THE MID 30S. * VISIBILITIES...MAY BE REDUCED TO LESS THAN ONE QUARTER OF A MILE AT TIMES DURING THE HEAVIEST SNOWFALL ON MONDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT SNOWFALL WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITY. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. && $$
016 WWUS41 KPBZ 230140 WSWPBZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE PITTSBURGH PA 940 PM EDT SUN APR 22 2012 ...HEAVY AND WET SNOWFALL TO IMPACT AREA... .STRONG LOW PRESSURE IS FORECAST TO MOVE NORTHWARD THROUGH EASTERN PENNSYLVANIA TONIGHT. THIS SYSTEM WILL SPREAD RAIN ACROSS THE AREA LATER THIS EVENING THAT WILL CHANGE TO SNOW AFTER MIDNIGHT INTO MONDAY MORNING. THE SNOW COULD BECOME HEAVY AT TIMES... ESPECIALLY MONDAY MORNING. A HEAVY...WET ACCUMULATION OF SNOW IS EXPECTED...WITH THE LARGEST ACCUMULATIONS LIKELY IN THE HIGHER ELEVATIONS GENERALLY EAST OF PITTSBURGH. THIS MAY CAUSE SIGNIFICANT PROBLEMS WITH THE DOWNING OF TREE LIMBS THAT HAVE DEVELOPED LEAVES...WHICH MAY IN TURN SPAWN POWER OUTAGES. SOME TRAVEL DIFFICULTIES CAN BE EXPECTED MONDAY MORNING AND AGAIN MONDAY NIGHT AS WELL. MDZ001-PAZ074-076-WVZ023-041-230945- /O.CON.KPBZ.WS.W.0004.120423T0600Z-120424T0600Z/ GARRETT-WESTMORELAND RIDGES-FAYETTE RIDGES-PRESTON-TUCKER- INCLUDING THE CITIES OF...OAKLAND MD...GRANTSVILLE...LIGONIER... DONEGAL...NEW FLORENCE...ACME...CHAMPION...NORMALVILLE... FARMINGTON...OHIOPYLE...MARKLEYSBURG...KINGWOOD...TERRA ALTA... PARSONS...DAVIS...THOMAS 940 PM EDT SUN APR 22 2012 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 2 AM MONDAY TO 2 AM EDT TUESDAY... * HAZARD TYPES...HEAVY WET SNOW. * ACCUMULATIONS...8 TO 12 INCHES OF SNOW. * TIMING...RAIN WILL DEVELOP LATE THIS EVENING AND CHANGE TO SNOW OVERNIGHT. THE HEAVIEST SNOW WILL FALL THROUGH THE MORNING HOURS ON MONDAY. * IMPACTS...THE COMBINATION OF STRONG WINDS AND A HEAVY WET SNOW WILL BRING DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * TEMPERATURES...IN THE LOWER 30S. * VISIBILITIES...MAY BE REDUCED TO BELOW ONE QUARTER OF A MILE IN THE HEAVIEST SNOW ON MONDAY MORNING. 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 TOLL FREE...1-877-633-6772. && $$ PAZ007>009-013>016-022-023-073-075-230945- /O.CON.KPBZ.WS.W.0004.120423T0900Z-120424T0600Z/ MERCER-VENANGO-FOREST-LAWRENCE-BUTLER-CLARION-JEFFERSON PA- ARMSTRONG-INDIANA-WESTMORELAND-FAYETTE- INCLUDING THE CITIES OF...SHARON...HERMITAGE...GROVE CITY... GREENVILLE...FARRELL...OIL CITY...FRANKLIN...SUGARCREEK... TIONESTA...NEW CASTLE...ELLWOOD CITY...BUTLER...ZELIENOPLE... CLARION...PUNXSUTAWNEY...BROOKVILLE...REYNOLDSVILLE...BROCKWAY... KITTANNING...FORD CITY...LEECHBURG...FREEPORT...APOLLO... INDIANA...GREENSBURG...NEW KENSINGTON...JEANNETTE...LATROBE... MONESSEN...UNIONTOWN...CONNELLSVILLE...POINT MARION 940 PM EDT SUN APR 22 2012 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM MONDAY TO 2 AM EDT TUESDAY... * HAZARD TYPES...HEAVY WET SNOW. * ACCUMULATIONS...4 TO 8 INCHES OF SNOW. * TIMING...RAIN WILL DEVELOP THIS EVENING AND CHANGE TO SNOW OVERNIGHT. THE HEAVIEST SNOW WILL FALL THROUGH THE MORNING HOURS ON MONDAY. * IMPACTS...THE COMBINATION OF STRONG WINDS AND A HEAVY WET SNOW WILL BRING DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 45 MPH. * TEMPERATURES...IN THE LOWER 30S. * VISIBILITIES...MAY BE REDUCED TO LESS THAN ONE QUARTER OF A MILE AT TIMES THROUGH THE DAY ON MONDAY. 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 TOLL FREE...1-877-633-6772. && $$ PAZ020-021-029-031-WVZ021-022-230945- /O.CON.KPBZ.WW.Y.0011.120423T0900Z-120424T0600Z/ BEAVER-ALLEGHENY-WASHINGTON-GREENE-MARION-MONONGALIA- INCLUDING THE CITIES OF...ALIQUIPPA...BEAVER FALLS...AMBRIDGE... MONACA...BEAVER...PITTSBURGH METRO AREA...WASHINGTON... CANONSBURG...DONORA...CALIFORNIA...CHARLEROI...MONONGAHELA... MCMURRAY...WAYNESBURG...FAIRDALE...FAIRMONT...MORGANTOWN 940 PM EDT SUN APR 22 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM MONDAY TO 2 AM EDT TUESDAY... * HAZARD TYPES...HEAVY WET SNOW. * ACCUMULATIONS...3 TO 5 INCHES OF SNOW. * TIMING...RAIN WILL DEVELOP LATE THIS EVENING AND CHANGE TO SNOW OVERNIGHT. THE HEAVIEST SNOW WILL FALL THROUGH THE MORNING HOURS ON MONDAY. * IMPACTS...THE COMBINATION OF STRONG WINDS AND A HEAVY WET SNOW WILL BRING DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 20 MPH WITH GUSTS UP TO 40 MPH. * TEMPERATURES...IN THE MID 30S. * VISIBILITIES...MAY BE REDUCED TO LESS THAN ONE QUARTER OF A MILE AT TIMES DURING THE HEAVIEST SNOWFALL ON MONDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT SNOWFALL WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITY. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. && $$
444 WWUS41 KPBZ 230531 WSWPBZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE PITTSBURGH PA 131 AM EDT MON APR 23 2012 ...HEAVY AND WET SNOWFALL TO IMPACT AREA... .DEEP LOW PRESSURE WILL SPREAD RAIN AND SNOW ACROSS THE UPPER OHIO VALLEY REGION TODAY. SIGNIFICANT ACCUMULATION OF HEAVY...WET SNOW IS EXPECTED...ESPECIALLY OVER THE HIGHER ELEVATIONS. MDZ001-PAZ074-076-WVZ023-041-231345- /O.CON.KPBZ.WS.W.0004.120423T0600Z-120424T0600Z/ GARRETT-WESTMORELAND RIDGES-FAYETTE RIDGES-PRESTON-TUCKER- INCLUDING THE CITIES OF...OAKLAND MD...GRANTSVILLE...LIGONIER... DONEGAL...NEW FLORENCE...ACME...CHAMPION...NORMALVILLE... FARMINGTON...OHIOPYLE...MARKLEYSBURG...KINGWOOD...TERRA ALTA... PARSONS...DAVIS...THOMAS 131 AM EDT MON APR 23 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... * HAZARD TYPES...HEAVY WET SNOW. * ACCUMULATIONS...6 TO 10 INCHES OF SNOW. * TIMING...HEAVY SNOW POTENTIAL WILL BE THIS MORNING AND EARLY THIS AFTERNOON. * IMPACTS...THE COMBINATION OF STRONG WIND AND HEAVY SNOW WILL DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * TEMPERATURES...IN THE LOWER 30S. * VISIBILITY...MAY BE REDUCED TO A QUARTER MILE OR LESS IN AREAS OF HEAVY SNOW. 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 TOLL FREE...1-877-633-6772. && $$ PAZ007>009-013>016-022-023-073-075-231345- /O.CON.KPBZ.WS.W.0004.120423T0900Z-120424T0600Z/ MERCER-VENANGO-FOREST-LAWRENCE-BUTLER-CLARION-JEFFERSON PA- ARMSTRONG-INDIANA-WESTMORELAND-FAYETTE- INCLUDING THE CITIES OF...SHARON...HERMITAGE...GROVE CITY... GREENVILLE...FARRELL...OIL CITY...FRANKLIN...SUGARCREEK... TIONESTA...NEW CASTLE...ELLWOOD CITY...BUTLER...ZELIENOPLE... CLARION...PUNXSUTAWNEY...BROOKVILLE...REYNOLDSVILLE...BROCKWAY... KITTANNING...FORD CITY...LEECHBURG...FREEPORT...APOLLO... INDIANA...GREENSBURG...NEW KENSINGTON...JEANNETTE...LATROBE... MONESSEN...UNIONTOWN...CONNELLSVILLE...POINT MARION 131 AM EDT MON APR 23 2012 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM EARLY THIS MORNING TO 2 AM EDT TUESDAY... * HAZARD TYPES...HEAVY WET SNOW. * ACCUMULATIONS...4 TO 8 INCHES OF SNOW. * TIMING...HEAVY SNOW POTENTIAL WILL BE THIS MORNING AND EARLY THIS AFTERNOON. * IMPACTS...THE COMBINATION OF STRONG WIND AND HEAVY SNOW WILL DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * TEMPERATURES...IN THE LOWER 30S. * VISIBILITY...MAY BE REDUCED TO A QUARTER MILE OR LESS IN AREAS OF HEAVY SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL MAKE TRAVEL DANGEROUS. IF YOU MUST VENTURE OUT AT ALL...USE EXTREME CAUTION. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. && $$ PAZ020-021-029-031-WVZ021-022-231345- /O.CON.KPBZ.WW.Y.0011.120423T0900Z-120424T0600Z/ BEAVER-ALLEGHENY-WASHINGTON-GREENE-MARION-MONONGALIA- INCLUDING THE CITIES OF...ALIQUIPPA...BEAVER FALLS...AMBRIDGE... MONACA...BEAVER...PITTSBURGH METRO AREA...WASHINGTON... CANONSBURG...DONORA...CALIFORNIA...CHARLEROI...MONONGAHELA... MCMURRAY...WAYNESBURG...FAIRDALE...FAIRMONT...MORGANTOWN 131 AM EDT MON APR 23 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM EARLY THIS MORNING TO 2 AM EDT TUESDAY... * HAZARD TYPES...HEAVY WET SNOW. * ACCUMULATIONS...2 TO 5 INCHES OF SNOW. * TIMING...RAIN WILL CHANGE TO SNOW AS THE MORNING PROGESSES AND MAY BE BRIEFLY HEAVY. * IMPACTS...THE COMBINATION OF WIND AND HEAVY SNOW MAY DOWN SOME TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 20 MPH WITH GUSTS UP TO 30 MPH. * TEMPERATURES...IN THE MID 30S. * VISIBILITIES...MAY BE REDUCED TO A QUARTER MILE OR LESS IN AREAS OF HEAVY SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT SNOWFALL WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR LIMITED VISIBILITY AND TREE LIMBS ON ROADS. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. && $$ 15
143 WWUS41 KPBZ 230807 WSWPBZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE PITTSBURGH PA 407 AM EDT MON APR 23 2012 ...HEAVY AND WET SNOWFALL TO IMPACT AREA... .DEEP LOW PRESSURE WILL SPREAD RAIN AND SNOW ACROSS THE UPPER OHIO VALLEY REGION TODAY. SIGNIFICANT ACCUMULATION OF HEAVY...WET SNOW IS EXPECTED...ESPECIALLY OVER THE HIGHER ELEVATIONS. MDZ001-PAZ074-076-WVZ023-041-231615- /O.CON.KPBZ.WS.W.0004.000000T0000Z-120424T0600Z/ GARRETT-WESTMORELAND RIDGES-FAYETTE RIDGES-PRESTON-TUCKER- INCLUDING THE CITIES OF...OAKLAND MD...GRANTSVILLE...LIGONIER... DONEGAL...NEW FLORENCE...ACME...CHAMPION...NORMALVILLE... FARMINGTON...OHIOPYLE...MARKLEYSBURG...KINGWOOD...TERRA ALTA... PARSONS...DAVIS...THOMAS 407 AM EDT MON APR 23 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... * HAZARD TYPES...HEAVY WET SNOW. * ACCUMULATIONS...6 TO 10 INCHES OF SNOW. * TIMING...HEAVY SNOW POTENTIAL WILL BE THIS MORNING AND EARLY THIS AFTERNOON. * IMPACTS...THE COMBINATION OF STRONG WIND AND HEAVY SNOW WILL DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * TEMPERATURES...IN THE LOWER 30S. * VISIBILITY...MAY BE REDUCED TO A QUARTER MILE OR LESS IN AREAS OF HEAVY SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL MAKE TRAVEL DANGEROUS. IF YOU MUST VENTURE OUT AT ALL...USE EXTREME CAUTION. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. && $$ PAZ007>009-013>016-022-023-073-075-231615- /O.CON.KPBZ.WS.W.0004.120423T0900Z-120424T0600Z/ MERCER-VENANGO-FOREST-LAWRENCE-BUTLER-CLARION-JEFFERSON PA- ARMSTRONG-INDIANA-WESTMORELAND-FAYETTE- INCLUDING THE CITIES OF...SHARON...HERMITAGE...GROVE CITY... GREENVILLE...FARRELL...OIL CITY...FRANKLIN...SUGARCREEK... TIONESTA...NEW CASTLE...ELLWOOD CITY...BUTLER...ZELIENOPLE... CLARION...PUNXSUTAWNEY...BROOKVILLE...REYNOLDSVILLE...BROCKWAY... KITTANNING...FORD CITY...LEECHBURG...FREEPORT...APOLLO... INDIANA...GREENSBURG...NEW KENSINGTON...JEANNETTE...LATROBE... MONESSEN...UNIONTOWN...CONNELLSVILLE...POINT MARION 407 AM EDT MON APR 23 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... * HAZARD TYPES...HEAVY WET SNOW. * ACCUMULATIONS...4 TO 8 INCHES OF SNOW. * TIMING...HEAVY SNOW POTENTIAL WILL BE THIS MORNING AND THIS AFTERNOON. * IMPACTS...THE COMBINATION OF STRONG WIND AND HEAVY SNOW WILL DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * TEMPERATURES...IN THE LOWER 30S. * VISIBILITY...MAY BE REDUCED TO A QUARTER MILE OR LESS IN AREAS OF HEAVY SNOW. 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 TOLL FREE...1-877-633-6772. && $$ PAZ020-021-029-031-WVZ021-022-231615- /O.CON.KPBZ.WW.Y.0011.120423T0900Z-120424T0600Z/ BEAVER-ALLEGHENY-WASHINGTON-GREENE-MARION-MONONGALIA- INCLUDING THE CITIES OF...ALIQUIPPA...BEAVER FALLS...AMBRIDGE... MONACA...BEAVER...PITTSBURGH METRO AREA...WASHINGTON... CANONSBURG...DONORA...CALIFORNIA...CHARLEROI...MONONGAHELA... MCMURRAY...WAYNESBURG...FAIRDALE...FAIRMONT...MORGANTOWN 407 AM EDT MON APR 23 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... * HAZARD TYPES...HEAVY WET SNOW. * ACCUMULATIONS...2 TO 4 INCHES OF SNOW. * TIMING...RAIN WILL CHANGE TO SNOW AS THE MORNING PROGESSES AND MAY BE BRIEFLY HEAVY. * IMPACTS...THE COMBINATION OF WIND AND HEAVY SNOW MAY DOWN SOME TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 20 MPH WITH GUSTS UP TO 30 MPH. * TEMPERATURES...IN THE LOW TO MID 30S. * VISIBILITIES...MAY BE REDUCED TO A QUARTER MILE OR LESS IN AREAS OF HEAVY SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT SNOWFALL WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR LIMITED VISIBILITY AND TREE LIMBS ON ROADS. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. && $$
981 WWUS41 KPBZ 231459 WSWPBZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE PITTSBURGH PA 1059 AM EDT MON APR 23 2012 ...HEAVY AND WET SNOWFALL TO IMPACT HIGHER ELEVATIONS... .DEEP LOW PRESSURE WILL SPREAD RAIN AND SNOW ACROSS THE UPPER OHIO VALLEY REGION TODAY. ACCUMULATION OF HEAVY...WET SNOW CAN CONTINUE OVER THE HIGHER ELEVATIONS. PAZ020-021-029-031-WVZ021-022-231600- /O.CAN.KPBZ.WW.Y.0011.000000T0000Z-120424T0600Z/ BEAVER-ALLEGHENY-WASHINGTON-GREENE-MARION-MONONGALIA- INCLUDING THE CITIES OF...ALIQUIPPA...BEAVER FALLS...AMBRIDGE... MONACA...BEAVER...PITTSBURGH METRO AREA...WASHINGTON... CANONSBURG...DONORA...CALIFORNIA...CHARLEROI...MONONGAHELA... MCMURRAY...WAYNESBURG...FAIRDALE...FAIRMONT...MORGANTOWN 1059 AM EDT MON APR 23 2012 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS CANCELLED THE WINTER WEATHER ADVISORY. TEMPERATURES ARE NO LONGER EXPECTED TO COOL ENOUGH TOWARD FREEZING FOR SNOWFALL TO ACCUMULATE MUCH TODAY, EITHER ON PAVEMENTS OR ON TREES AND POWER LINES. $$ MDZ001-PAZ074-076-WVZ023-041-232300- /O.CON.KPBZ.WS.W.0004.000000T0000Z-120424T0600Z/ GARRETT-WESTMORELAND RIDGES-FAYETTE RIDGES-PRESTON-TUCKER- INCLUDING THE CITIES OF...OAKLAND MD...GRANTSVILLE...LIGONIER... DONEGAL...NEW FLORENCE...ACME...CHAMPION...NORMALVILLE... FARMINGTON...OHIOPYLE...MARKLEYSBURG...KINGWOOD...TERRA ALTA... PARSONS...DAVIS...THOMAS 1059 AM EDT MON APR 23 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... * HAZARD TYPES...HEAVY WET SNOW. * ACCUMULATIONS...UP TO 6 TO 10 INCHES OF WET SNOW. * TIMING...THROUGH EARLY THIS AFTERNOON. * IMPACTS...THE COMBINATION OF STRONG WIND AND HEAVY SNOW CAN DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * TEMPERATURES...IN THE LOWER 30S. * VISIBILITY...MAY BE REDUCED TO A QUARTER MILE OR LESS IN AREAS OF HEAVY SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL MAKE TRAVEL DANGEROUS. IF YOU MUST VENTURE OUT AT ALL...USE EXTREME CAUTION. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. && $$ PAZ007>009-013>016-022-023-073-075-232300- /O.CON.KPBZ.WS.W.0004.000000T0000Z-120424T0600Z/ MERCER-VENANGO-FOREST-LAWRENCE-BUTLER-CLARION-JEFFERSON PA- ARMSTRONG-INDIANA-WESTMORELAND-FAYETTE- INCLUDING THE CITIES OF...SHARON...HERMITAGE...GROVE CITY... GREENVILLE...FARRELL...OIL CITY...FRANKLIN...SUGARCREEK... TIONESTA...NEW CASTLE...ELLWOOD CITY...BUTLER...ZELIENOPLE... CLARION...PUNXSUTAWNEY...BROOKVILLE...REYNOLDSVILLE...BROCKWAY... KITTANNING...FORD CITY...LEECHBURG...FREEPORT...APOLLO... INDIANA...GREENSBURG...NEW KENSINGTON...JEANNETTE...LATROBE... MONESSEN...UNIONTOWN...CONNELLSVILLE...POINT MARION 1059 AM EDT MON APR 23 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... * HAZARD TYPES...HEAVY WET SNOW. * ACCUMULATIONS...UP TO 4 TO 8 INCHES OF SNOW. * TIMING...HEAVY SNOW POTENTIAL THROUGH THIS AFTERNOON. * IMPACTS...THE COMBINATION OF STRONG WIND AND HEAVY SNOW WILL DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * TEMPERATURES...IN THE LOWER 30S. * VISIBILITY...MAY BE REDUCED TO A QUARTER MILE OR LESS IN AREAS OF HEAVY SNOW. 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 TOLL FREE...1-877-633-6772. && $$
784 WWUS41 KPBZ 231756 WSWPBZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE PITTSBURGH PA 156 PM EDT MON APR 23 2012 ...HEAVY AND WET SNOWFALL TO IMPACT HIGHER ELEVATIONS... .DEEP LOW PRESSURE WILL SPREAD RAIN AND SNOW ACROSS THE UPPER OHIO VALLEY REGION TODAY. ACCUMULATION OF HEAVY...WET SNOW CAN CONTINUE OVER THE HIGHER ELEVATIONS. PAZ007-008-013>015-022-073-075-231900- /O.CAN.KPBZ.WS.W.0004.000000T0000Z-120424T0600Z/ MERCER-VENANGO-LAWRENCE-BUTLER-CLARION-ARMSTRONG-WESTMORELAND- FAYETTE- INCLUDING THE CITIES OF...SHARON...HERMITAGE...GROVE CITY... GREENVILLE...FARRELL...OIL CITY...FRANKLIN...SUGARCREEK... NEW CASTLE...ELLWOOD CITY...BUTLER...ZELIENOPLE...CLARION... KITTANNING...FORD CITY...LEECHBURG...FREEPORT...APOLLO... GREENSBURG...NEW KENSINGTON...JEANNETTE...LATROBE...MONESSEN... UNIONTOWN...CONNELLSVILLE...POINT MARION 156 PM EDT MON APR 23 2012 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS CANCELLED THE WINTER STORM WARNING. TEMPERATURES ARE NO LONGER EXPECTED TO COOL ENOUGH TOWARD FREEZING FOR SNOWFALL TO ACCUMULATE MUCH THIS AFTERNOON AND EARLY EVENING, EITHER ON PAVEMENTS OR ON TREES AND POWER LINES. $$ MDZ001-PAZ074-076-WVZ023-041-240200- /O.CON.KPBZ.WS.W.0004.000000T0000Z-120424T0600Z/ GARRETT-WESTMORELAND RIDGES-FAYETTE RIDGES-PRESTON-TUCKER- INCLUDING THE CITIES OF...OAKLAND MD...GRANTSVILLE...LIGONIER... DONEGAL...NEW FLORENCE...ACME...CHAMPION...NORMALVILLE... FARMINGTON...OHIOPYLE...MARKLEYSBURG...KINGWOOD...TERRA ALTA... PARSONS...DAVIS...THOMAS 156 PM EDT MON APR 23 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY. * ACCUMULATIONS...UP TO 6 TO 10 INCHES OF WET SNOW. * TIMING...THROUGH EARLY THIS AFTERNOON. * IMPACTS...THE COMBINATION OF STRONG WIND AND HEAVY SNOW CAN DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * TEMPERATURES...IN THE LOWER 30S. * VISIBILITY...MAY BE REDUCED TO A QUARTER MILE OR LESS IN AREAS OF HEAVY SNOW. 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 TOLL FREE...1-877-633-6772. && $$ PAZ009-016-023-240200- /O.CON.KPBZ.WS.W.0004.000000T0000Z-120424T0600Z/ FOREST-JEFFERSON PA-INDIANA- INCLUDING THE CITIES OF...TIONESTA...PUNXSUTAWNEY...BROOKVILLE... REYNOLDSVILLE...BROCKWAY...INDIANA 156 PM EDT MON APR 23 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY. * ACCUMULATIONS...UP TO 4 TO 8 INCHES OF SNOW. * TIMING...HEAVY SNOW POTENTIAL THROUGH THIS AFTERNOON. * IMPACTS...THE COMBINATION OF STRONG WIND AND HEAVY SNOW WILL DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * TEMPERATURES...IN THE LOWER 30S. * VISIBILITY...MAY BE REDUCED TO A QUARTER MILE OR LESS IN AREAS OF HEAVY SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL MAKE TRAVEL DANGEROUS. IF YOU MUST VENTURE OUT AT ALL...USE EXTREME CAUTION. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. && $$
945 WWUS41 KPBZ 232002 WSWPBZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE PITTSBURGH PA 402 PM EDT MON APR 23 2012 ...HEAVY AND WET SNOWFALL TO IMPACT HIGHER ELEVATIONS... .DEEP LOW PRESSURE WILL SPREAD RAIN AND SNOW ACROSS THE UPPER OHIO VALLEY REGION TODAY. ACCUMULATION OF HEAVY...WET SNOW CAN CONTINUE OVER THE HIGHER ELEVATIONS. MDZ001-PAZ074-076-WVZ023-041-240415- /O.CON.KPBZ.WS.W.0004.000000T0000Z-120424T0600Z/ GARRETT-WESTMORELAND RIDGES-FAYETTE RIDGES-PRESTON-TUCKER- INCLUDING THE CITIES OF...OAKLAND MD...GRANTSVILLE...LIGONIER... DONEGAL...NEW FLORENCE...ACME...CHAMPION...NORMALVILLE... FARMINGTON...OHIOPYLE...MARKLEYSBURG...KINGWOOD...TERRA ALTA... PARSONS...DAVIS...THOMAS 402 PM EDT MON APR 23 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... * ACCUMULATIONS...UP TO 6 TO 10 INCHES OF WET SNOW. * TIMING...THROUGH EARLY THIS AFTERNOON. * IMPACTS...THE COMBINATION OF STRONG WIND AND HEAVY SNOW CAN DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * TEMPERATURES...IN THE LOWER 30S. * VISIBILITY...MAY BE REDUCED TO A QUARTER MILE OR LESS IN AREAS OF HEAVY SNOW. 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 TOLL FREE...1-877-633-6772. && $$ PAZ009-016-023-240415- /O.CON.KPBZ.WS.W.0004.000000T0000Z-120424T0600Z/ FOREST-JEFFERSON PA-INDIANA- INCLUDING THE CITIES OF...TIONESTA...PUNXSUTAWNEY...BROOKVILLE... REYNOLDSVILLE...BROCKWAY...INDIANA 402 PM EDT MON APR 23 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... * ACCUMULATIONS...UP TO 4 TO 8 INCHES OF SNOW. * TIMING...HEAVY SNOW POTENTIAL THROUGH THIS AFTERNOON. * IMPACTS...THE COMBINATION OF STRONG WIND AND HEAVY SNOW WILL DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * TEMPERATURES...IN THE LOWER 30S. * VISIBILITY...MAY BE REDUCED TO A QUARTER MILE OR LESS IN AREAS OF HEAVY SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL MAKE TRAVEL DANGEROUS. IF YOU MUST VENTURE OUT AT ALL...USE EXTREME CAUTION. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. && $$
453 WWUS41 KPBZ 232318 WSWPBZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE PITTSBURGH PA 718 PM EDT MON APR 23 2012 ...HEAVY AND WET SNOWFALL TO IMPACT HIGHER ELEVATIONS... .DEEP LOW PRESSURE WILL CONTINUE TO SPREAD RAIN AND SNOW ACROSS PORTIONS OF THE UPPER OHIO VALLEY REGION TONIGHT. ACCUMULATION OF HEAVY...WET SNOW WILL CONTINUE OVER THE HIGHER ELEVATIONS. WVZ041-240030- /O.CAN.KPBZ.WS.W.0004.000000T0000Z-120424T0600Z/ TUCKER- INCLUDING THE CITIES OF...PARSONS...DAVIS...THOMAS 718 PM EDT MON APR 23 2012 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS CANCELLED THE WINTER STORM WARNING. THE SNOW HAS ENDED OVER THE COUNTY. $$ MDZ001-PAZ074-076-WVZ023-240600- /O.CON.KPBZ.WS.W.0004.000000T0000Z-120424T0600Z/ GARRETT-WESTMORELAND RIDGES-FAYETTE RIDGES-PRESTON- INCLUDING THE CITIES OF...OAKLAND MD...GRANTSVILLE...LIGONIER... DONEGAL...NEW FLORENCE...ACME...CHAMPION...NORMALVILLE... FARMINGTON...OHIOPYLE...MARKLEYSBURG...KINGWOOD...TERRA ALTA 718 PM EDT MON APR 23 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... * ACCUMULATIONS...UP TO 6 TO 10 INCHES OF WET SNOW. * TIMING...THROUGH EARLY TUESDAY MORNING. * IMPACTS...THE COMBINATION OF STRONG WIND AND HEAVY SNOW CAN DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * TEMPERATURES...IN THE UPPER 20S TO LOWER 30S. * VISIBILITY...MAY BE REDUCED TO A QUARTER MILE OR LESS IN AREAS OF HEAVY SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL MAKE TRAVEL DANGEROUS. IF YOU MUST VENTURE OUT AT ALL...USE EXTREME CAUTION. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. && $$ PAZ009-016-023-240600- /O.CON.KPBZ.WS.W.0004.000000T0000Z-120424T0600Z/ FOREST-JEFFERSON PA-INDIANA- INCLUDING THE CITIES OF...TIONESTA...PUNXSUTAWNEY...BROOKVILLE... REYNOLDSVILLE...BROCKWAY...INDIANA 718 PM EDT MON APR 23 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... * ACCUMULATIONS...UP TO 4 TO 8 INCHES OF SNOW. * TIMING...HEAVY SNOW POTENTIAL THROUGH EARLY TUESDAY MORNING. * IMPACTS...THE COMBINATION OF STRONG WIND AND HEAVY SNOW WILL DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * TEMPERATURES...IN THE LOWER 30S. * VISIBILITY...MAY BE REDUCED TO A QUARTER MILE OR LESS IN AREAS OF HEAVY SNOW. 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 TOLL FREE...1-877-633-6772. && $$
698 WWUS41 KPBZ 240131 WSWPBZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE PITTSBURGH PA 931 PM EDT MON APR 23 2012 ...HEAVY AND WET SNOWFALL TO IMPACT HIGHER ELEVATIONS... .DEEP LOW PRESSURE WILL CONTINUE TO SPREAD RAIN AND SNOW ACROSS PORTIONS OF THE UPPER OHIO VALLEY REGION TONIGHT. ACCUMULATION OF HEAVY...WET SNOW WILL CONTINUE OVER THE HIGHER ELEVATIONS. MDZ001-PAZ076-WVZ023-240245- /O.CAN.KPBZ.WS.W.0004.000000T0000Z-120424T0600Z/ GARRETT-FAYETTE RIDGES-PRESTON- INCLUDING THE CITIES OF...OAKLAND MD...GRANTSVILLE... NORMALVILLE...FARMINGTON...OHIOPYLE...MARKLEYSBURG...KINGWOOD... TERRA ALTA 931 PM EDT MON APR 23 2012 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS CANCELLED THE WINTER STORM WARNING. $$ PAZ074-240600- /O.CON.KPBZ.WS.W.0004.000000T0000Z-120424T0600Z/ WESTMORELAND RIDGES- INCLUDING THE CITIES OF...LIGONIER...DONEGAL...NEW FLORENCE... ACME...CHAMPION 931 PM EDT MON APR 23 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... * ACCUMULATIONS...UP TO 6 TO 10 INCHES OF WET SNOW. * TIMING...THROUGH EARLY TUESDAY MORNING. * IMPACTS...THE COMBINATION OF STRONG WIND AND HEAVY SNOW CAN DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * TEMPERATURES...IN THE UPPER 20S TO LOWER 30S. * VISIBILITY...MAY BE REDUCED TO A QUARTER MILE OR LESS IN AREAS OF HEAVY SNOW. 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 TOLL FREE...1-877-633-6772. && $$ PAZ009-016-023-240600- /O.CON.KPBZ.WS.W.0004.000000T0000Z-120424T0600Z/ FOREST-JEFFERSON PA-INDIANA- INCLUDING THE CITIES OF...TIONESTA...PUNXSUTAWNEY...BROOKVILLE... REYNOLDSVILLE...BROCKWAY...INDIANA 931 PM EDT MON APR 23 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... * ACCUMULATIONS...UP TO 4 TO 8 INCHES OF SNOW. * TIMING...HEAVY SNOW POTENTIAL THROUGH EARLY TUESDAY MORNING. * IMPACTS...THE COMBINATION OF STRONG WIND AND HEAVY SNOW WILL DOWN TREE LIMBS AND POWER LINES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 30 MPH. * TEMPERATURES...IN THE LOWER 30S. * VISIBILITY...MAY BE REDUCED TO A QUARTER MILE OR LESS IN AREAS OF HEAVY SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR SNOW MEANS THAT HEAVY SNOWFALL WILL MAKE TRAVEL DANGEROUS. IF YOU MUST VENTURE OUT AT ALL...USE EXTREME CAUTION. REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. && $$
445 WWUS41 KPBZ 240517 WSWPBZ URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE PITTSBURGH PA 117 AM EDT TUE APR 24 2012 PAZ009-016-023-074-240630- /O.CAN.KPBZ.WS.W.0004.000000T0000Z-120424T0600Z/ FOREST-JEFFERSON PA-INDIANA-WESTMORELAND RIDGES- INCLUDING THE CITIES OF...TIONESTA...PUNXSUTAWNEY...BROOKVILLE... REYNOLDSVILLE...BROCKWAY...INDIANA...LIGONIER...DONEGAL... NEW FLORENCE...ACME...CHAMPION 117 AM EDT TUE APR 24 2012 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS CANCELLED THE WINTER STORM WARNING. $$
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 Apr 22, 12:34 PM EDT, 1 hour 53 minutes earlier.
Area forecast discussion, Apr 22, 12:34 PM EDT, 1 hour 53 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
1234 PM EDT SUN APR 22 2012
.SYNOPSIS...
A RAPIDLY INTENSIFY LOW PRESSURE SYSTEM WILL MOVE UP THE EAST COAST
TODAY, AND THEN TURN TO THE NORTHWEST AND MOVE OVER EASTERN
PENNSYLVANIA LATE TONIGHT. THIS SYSTEM WILL BRING RAIN LATER TODAY
AND TONIGHT AND EVENTUALLY SNOW LATE TONIGHT AND MONDAY.
&&
.NEAR TERM /UNTIL 6 PM THIS EVENING/...
ONE LAST UPDATE FOR TODAY WAS JUST SENT TO SLOW THE NORTHWESTWARD
SPREAD OF PRECIPITATION INTO THE AREA THE REST OF THE DAY. RECENT
RADAR MOSAICS SHOW THE VAST MAJORITY OF THE PRECIPITATION IS STILL
JUST SOUTHEAST OF THE AREA...AND IT WILL LIKELY TAKE A FEW MORE
HOURS BEFORE THE INTERACTION OF THE UPPER LOW TO OUR WEST WITH THE
NORTHWARD SURGE OF MOISTURE UP THE EASTERN SEABOARD IMPACTS OUR
FORECAST AREA. FRIES
PREVIOUS...
UPPER LEVEL LOW WILL DIG INTO THE MIDWEST THIS MORNING. 50H LOW
WILL DEEPEN AND DIVE SOUTHEASTWARD OVER THE LOWER OHIO VALLEY THIS
AFTERNOON. AT THE SAME TIME, LOW PRESSURE, DEVELOPING OFF THE
CAROLINAS, WILL INTENSIFY AND MOVE QUICKLY UP THE EAST COAST. AS
THE UL LOW DIGS SOUTHWARD AND THE EASTERN LOW MOVES UP THE COAST,
DEEP LAYER MOISTURE WILL MOVE INTO THE UPPER OHIO VALLEY. THIS
WILL MEAN PLENTY OF CLOUDS AND RAIN MOVING IN FROM THE SOUTHEAST
THIS AFTERNOON. IN ADDITION TO RAINFALL, A TIGHTENING SFC PRESSURE
GRADIENT WILL MEAN WINDS WILL STRENGTHEN LATE THE MORNING AND
THROUGHOUT THE AFTERNOON.
TEMPERATURES WILL REMAIN WELL BELOW NORMAL TODAY.
&&
.SHORT TERM /6 PM THIS EVENING THROUGH TUESDAY/...
THE WEATHER GETS MUCH MORE COMPLICATED LATE TONIGHT AND MONDAY.
EVEN AT THIS CLOSE PROXIMITY TO THE ONSET OF THIS SYSTEM, SUBTLE
DIFFERENCES IN MODEL SOLUTIONS MAKE FOR A VERY DIFFICULT FORECAST.
UL LOW WILL SWING ACROSS THE MID-ATLANTIC TONIGHT AND THEN ROTATE
NORTHWARD INTO CENTRAL PA BY 12Z MONDAY. AT THE SAME TIME, THE SFC
SYSTEM, MOVING UP THE EAST COAST, WILL PHASE WITH THE UL ENERGY AND
DEEPEN RAPIDLY. BY 12Z MONDAY, THE SFC SYSTEM WILL BE OVER EASTERN
PA. PRECIPITATION WILL BE FALLING ACROSS MOST OF THE AREA WITH THE
EASTERN TWO-THIRDS UNDER THE GUN. WITH THE THERMAL STRUCTURE MODELS
ARE DEPICTING IN THEIR LATEST RUN, EXPECT RAIN UNTIL ABOUT 06Z.
AFTER THIS TIME, THERE ARE STILL HUGE QUESTIONS. DIFFERENCES IN
THERMAL PROFILES AFTER 06Z BRING LITTLE CONFIDENCE TO EXACTLY WHEN
AND WHERE RAIN WILL CHANGE TO SNOW. THE OTHER BIG QUESTION IS WILL
IT FALL AS ALL SNOW, OR WILL THERE BE A PROLONGED PERIOD OF A
RAIN/SNOW MIX. CURRENTLY THE NAM IS THE COLDEST MODEL, WHILE THE GFS
IS JUST A TAD BIT WARMER. THESE SMALL VARIANCES IN ATMOSPHERIC TEMPS
WILL MAKE A HUGE DIFFERENCE TO THE FINAL STORY THE SYSTEM WILL TELL.
THE COLDER NAM MODEL BEGINS TO CHANGE THE RAIN TO SNOW OVER THE
SOUTHEASTERN RIDGES SHORTLY AFTER 03Z AND THEN MOVES THIS RAIN/SNOW
LINE NORTHWESTWARD, SO THAT BY 12Z MOST LOCATIONS WILL BE ALL SNOW.
THE WARMER GFS(WARMER MEANING BY A COUPLE OF DEGREES), SHOWS THE
CHANGE OVER BEGINNING CLOSER TO 12Z AND FURTHER NORTH. THE MAIN
CAUSE OF THIS DISCREPANCY, IS A WARMER BL AND WARMER LL THICKNESSES.
THE 21Z SREF IS ALMOST A COMPROMISE BETWEEN THE TWO. IT SHOWS THE
CHANGE OVER BEGINNING AFTER 06Z MONDAY AND DEVELOPING IN A SIMILAR
FASHION AS THE 00Z NAM.
THE NAM AND SREF SHOW ALL SNOW MONDAY, WHILE THE WARMER GFS SHOWS
MORE OF A RAIN/SNOW MIX AND NOT SHOWING AS LARGE OF AN AREA OF ALL
SNOW.
ALL OF THE MODELS HAVE SLOWED THE PROGRESSION OF THE SFC LOW IN
RESPONSE TO THE VERY SLOW NORTHWARD MOVEMENT OF THE UL SYSTEM.
IN ADDITION TO THE PRECIPITATION MONDAY, IT WILL BE VERY WINDY, WITH
A TIGHT SFC PRESS GRADIENT ON WESTERN SIDE OF LOW AND STRONG LL JET
WHICH WILL LIKELY MIX DOWN IN THE CAA.
SO THE $64,000 QUESTION IS HOW MUCH SNOW. SO MANY FACTORS ARE GOING
TO GO INTO ACCUMULATIONS. HOW SOON WILL EVERYTHING CHANGE OVER TO
SNOW, WILL IT CHANGE TO ALL SNOW. THE RAINFALL BEFORE THE SNOW, THE
WARM LATE APRIL GROUND. SFC TEMPS ON MONDAY. TAKING INTO ACCOUNT
ALL OF THESE FACTORS, FELT A GOOD WAY TO HANDLE ACCUMULATIONS WAS
TO GO WITH ABOUT HALF OF WHAT MODEL OUTPUT IS PROVIDING. STILL
BELIEVE THAT THE GREATEST ACCUMULATIONS WILL BE MOST LIKELY OVER
THE HIGHEST ELEVATIONS.
HAVE ONLY MADE MINOR CHANGES TO PREVIOUS FORECAST. WILL LEAVE
WINTER STORM WATCH AS IS.
BY MONDAY NIGHT, THE ENTIRE SYSTEM HAS MOVED INTO UPSTATE NY. WILL
STILL NEED TO LEAVE IN POPS FOR PRECIP WITH WRAP AROUND CONTINUING.
AS THE SYSTEM MOVES FURTHER NORTH, THE SOUTHERN EXTENT OF THE PRECIP
SHIELD WILL ALSO SHIFT NORTHWARD.
SYSTEM MOVES INTO SOUTHERN CANADA TUESDAY, BUT WITH SUCH A LARGE
SYSTEM THE RISK FOR WRAP AROUND PRECIP WILL CONTINUE.
&&
.LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/...
MODELS STILL IN DISAGREEMENT FOR THE BEGINNING OF THE LONG TERM,
COMING INTO MUCH BETTER AGREEMENT BY THE END OF THE WEEK. WEATHER
WILL REMAIN UNSETTLED THROUGH THURSDAY, UNTIL STRONG HIGH PRESSURE
QUIETS OUR WEATHER DOWN BY THE END OF THE WEEK AND INTO THE WEEKEND.
&&
.AVIATION /18Z SUNDAY THROUGH FRIDAY/...
IFR ST BLANKET WL CONT TO LIFT THIS MRNG ALTHOUGH COOL...MOIST
ADVECTION PERSISTS ON THE NORTH SIDE OF STALLED FRONTAL BOUNDARY OVR
THE MID ATLANTIC REGION. FURTHER IMPROVEMENT IS INDICATED AFTR
DAYBREAK AS WIND AND MIXING ESCALATE IN RESPONSE TO DVLPG LOW PRES
OVR THE SERN STATES. THOSE IMPROVEMENTS WILL BE BRIEF AS LIGHT PCPN
DVLPS THIS AFTN AND EARLY THIS EVE ON THE NRN AND WRN FLANKS OF THAT
LOW.
OUTLOOK...SUNDAY NIGHT THROUGH THURSDAY...
WIDESPREAD RESTRICTIONS AND STRENGTHENING WIND CAN BE EXPECTED ON
SUNDAY NIGHT AND MONDAY AS THE DEEPENING LOW PRES SYS SPREADS RAIN
AND SNOW OVR THE UPR OH VALLEY REGION.
ALTHOUGH THAT LOW IS PROJECTED TO EXIT ON TUESDAY...PERIODIC
RESTRICTIONS SHOULD BE ANTICIPATED THROUGH MID WEEK AS COLD
NORTHWEST FLOW CONTINUES INTO HIGH AMPLITUDE EAST COAST TROF.
&&
.PBZ WATCHES/WARNINGS/ADVISORIES...
MD...WINTER STORM WATCH FROM MIDNIGHT EDT TONIGHT THROUGH MONDAY
EVENING FOR MDZ001.
OH...NONE.
PA...WINTER STORM WATCH FROM MIDNIGHT EDT TONIGHT THROUGH MONDAY
EVENING FOR PAZ007>009-013>016-020>023-073>076.
WV...WINTER STORM WATCH FROM MIDNIGHT EDT TONIGHT THROUGH MONDAY
EVENING FOR WVZ023-041.
&&Hazardous weather outlook, Apr 22, 4:36 AM EDT, 9 hours 51 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 436 AM EDT SUN APR 22 2012 MDZ001-PAZ007>009-013>016-020>023-073>076-WVZ023-041-230845- GARRETT-MERCER-VENANGO-FOREST-LAWRENCE-BUTLER-CLARION-JEFFERSON PA- BEAVER-ALLEGHENY-ARMSTRONG-INDIANA-WESTMORELAND-WESTMORELAND RIDGES- FAYETTE-FAYETTE RIDGES-PRESTON-TUCKER- 436 AM EDT SUN APR 22 2012 ...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH MONDAY EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND...NORTHWEST PENNSYLVANIA...SOUTHWEST PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA AND NORTHERN 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...MONDAY THROUGH SATURDAY. 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. OHZ039>041-048>050-057>059-068-069-PAZ029-031-WVZ001>004-012-021-022- 230845- TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON-JEFFERSON OH- MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE-WASHINGTON-GREENE-HANCOCK- BROOKE-OHIO-MARSHALL-WETZEL-MARION-MONONGALIA- 436 AM EDT SUN APR 22 2012 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. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. AN AREA OF LOW PRESSURE WILL ADVANCE UP THE EASTERN SEABOARD TODAY AND MOVE INTO EASTERN PENNSYLVANIA LATE TONIGHT. THIS SYSTEM WILL BRING RAIN THE AREA TONIGHT, WHICH WILL MIX WITH AND POSSIBLY CHANGE TO SNOW MONDAY MORNING. DEPENDING ON SURFACE TEMPERATURES...SNOW ACCUMULATION IS POSSIBLE. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 2:27 PM EDT | Winter Weather Advisory | PBZ | Allegheny, Beaver, Greene, Washington | 21 hr |
Nearby
Winter Storm Warnings in Pennsylvania, 2012Winter Storm Warnings in West Virginia, 2012Winter Storm Warnings in Maryland, 2012Every winter storm warning in 2012
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.