Alert archive / Pennsylvania / Winter Storm Warnings in 2015
Winter Storm Warning 1, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this winter storm warning at Jan 24, 2015, 3:47 AM EST for 7 counties in Pennsylvania; 5 counties in New Jersey. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 24, 2015, 3:47 AM EST (08:47 UTC)
- Expired
- Jan 24, 2015, 1:00 PM EST
- In force
- 9 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Hunterdon County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Berks County, PA, Bucks County, PA, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 105 km from the middle of the area, began a volume at 08:50 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 8.8 hours before the alert went out and 196 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1049 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 187 m²/s²
- 0-3 km storm-relative helicity
- 254 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
983 WWUS41 KPHI 240847 WSWPHI URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 347 AM EST SAT JAN 24 2015 DEZ001-MDZ008-012-NJZ016>019-241000- /O.CAN.KPHI.WW.Y.0007.000000T0000Z-150124T1000Z/ NEW CASTLE-CECIL-KENT MD-SALEM-GLOUCESTER-CAMDEN- NORTHWESTERN BURLINGTON- INCLUDING THE CITIES OF...WILMINGTON...ELKTON...CHESTERTOWN... PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN... MOUNT HOLLY 347 AM EST SAT JAN 24 2015 ...WINTER WEATHER ADVISORY IS CANCELED... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELED THE WINTER WEATHER ADVISORY. $$ NJZ001-007>010-PAZ054-055-060>062-105-241600- /O.UPG.KPHI.WW.Y.0007.000000T0000Z-150124T1800Z/ /O.NEW.KPHI.WS.W.0001.150124T0847Z-150124T1600Z/ SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-CARBON-MONROE-BERKS- LEHIGH-NORTHAMPTON-UPPER BUCKS- INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN... FLEMINGTON...SOMERVILLE...JIM THORPE...STROUDSBURG...READING... ALLENTOWN...BETHLEHEM...EASTON...CHALFONT...PERKASIE 347 AM EST SAT JAN 24 2015 ...WINTER STORM WARNING IN EFFECT UNTIL 11 AM EST THIS MORNING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER STORM WARNING FOR SNOW...WHICH IS IN EFFECT UNTIL 11 AM EST THIS MORNING. THIS WARNING REPLACED THE WINTER WEATHER ADVISORY PREVIOUSLY IN EFFECT. * LOCATIONS...EASTERN PENNSYLVANIA INCLUDING READING...THE LEHIGH VALLEY AND POCONOS INTO NORTHERN NEW JERSEY. BASICALLY THIS COVERS THE REGION ALONG AND NORTH OF INTERSTATE 78. * ACCUMULATIONS...STORM TOTAL SNOW ACCUMULATION OF 4 TO 8 INCHES...ALONG WITH AROUND A TRACE OF ICE. * TIMING...SNOW WILL CONTINUE THIS MORNING...MODERATE OR HEAVY AT TIMES THROUGH ABOUT 8 AM...THEN TAPER OFF TO FLURRIES BY FORENOON. IT MAY MIX WITH SLEET AND FREEZING RAIN FOR A TIME THIS MORNING...MAINLY TO THE SOUTH OF INTERSTATE 80. * IMPACTS...SUBSTANTIAL IMPACT TO TRAVEL THROUGH DAYBREAK OR UNTIL ROADS ARE CLEARED. THERE IS A SMALL CHANCE OF SCATTERED POWER OUTAGES WHERE 6 INCHES OR MORE OF SNOW COLLECTS ON BRANCHES AND WIRES. * WINDS...NORTH TO NORTHEAST 5 TO 10 MPH WITH GUSTS UP TO 20 MPH. * VISIBILITIES...ONE QUARTER MILE OR LESS AT TIMES UNTIL SHORTLY AFTER DAYBREAK. * TEMPERATURES...BETWEEN 27 AND 32 DEGREES THROUGH 8 AM THEN RISING SEVERAL DEGREES DURING MIDDAY WHEN THE SNOW TAPERS OFF. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ PAZ103-241600- /O.UPG.KPHI.WW.Y.0007.000000T0000Z-150124T1300Z/ /O.NEW.KPHI.WS.W.0001.150124T0847Z-150124T1600Z/ WESTERN MONTGOMERY- INCLUDING THE CITIES OF...COLLEGEVILLE...POTTSTOWN 347 AM EST SAT JAN 24 2015 ...WINTER STORM WARNING IN EFFECT UNTIL 11 AM EST THIS MORNING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER STORM WARNING FOR SNOW SLEET AND FREEZING RAIN WHICH IS IN EFFECT UNTIL 11 AM EST THIS MORNING. THIS WARING REPLACED THE WINTER WEATHER ADVISORY PREVIOUSLY IN EFFECT. * LOCATIONS...WESTERN MONTGOMERY COUNTY. * ACCUMULATIONS...STORM TOTAL SNOW ACCUMULATION OF 4 TO 6 INCHES...ALONG WITH AROUND A TRACE OF ICE. * TIMING...SNOW MAY MIX WITH SLEET AND FREEZING RAIN AT TIMES BEFORE TAPERING TO FLURRIES DURING MID OR LATE MORNING. * IMPACTS...TRAVEL HAMPERED UNTIL ROADS ARE CLEARED. THERE IS A SMALL CHANCE OF SCATTERED POWER OUTAGES WHERE 6 INCHES OF SNOW COLLECTS ON BRANCHES AND WIRES. * WINDS...NORTH TO NORTHEAST 5 TO 10 MPH. * VISIBILITIES...BRIEFLY ONE QUARTER MILE OR LESS PRIOR TO 8 AM. * TEMPERATURES...IN THE LOWER 30S. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ NJZ012-013-015-PAZ070-071-101-102-104-106-241300- /O.CON.KPHI.WW.Y.0007.000000T0000Z-150124T1300Z/ MIDDLESEX-WESTERN MONMOUTH-MERCER-DELAWARE-PHILADELPHIA- WESTERN CHESTER-EASTERN CHESTER-EASTERN MONTGOMERY-LOWER BUCKS- INCLUDING THE CITIES OF...NEW BRUNSWICK...FREEHOLD...TRENTON... MEDIA...PHILADELPHIA...HONEY BROOK...OXFORD...WEST CHESTER... KENNETT SQUARE...NORRISTOWN...LANSDALE...MORRISVILLE...DOYLESTOWN 347 AM EST SAT JAN 24 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS MORNING... * LOCATIONS...NEAR AND TO THE WEST OF THE HEART OF THE INTERSTATE 95 CORRIDOR FROM PHILADELPHIA'S SOUTHWESTERN THROUGH NORTHWESTERN SUBURBS THEN NORTHEASTWARD THROUGH TRENTON AND NEW BRUNSWICK NEW JERSEY. * ACCUMULATIONS...SNOW ACCUMULATION OF 2 TO 4 INCHES...ALONG WITH AROUND A TRACE OF ICE. * TIMING...SNOW MIXED AT TIMES WITH RAIN SLEET AND FREEZING RAIN WILL TAPER TO LIGHTER SNOW OR RAIN AROUND 8 AM. * WINDS...NORTHEAST 5 TO 10 MPH WITH GUSTS UP TO 20 MPH. * TEMPERATURES...IN THE LOWER 30S. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
3 follow-up statements
258 WWUS41 KPHI 241255 WSWPHI URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 755 AM EST SAT JAN 24 2015 NJZ012-013-015-PAZ070-071-101-102-104-106-241400- /O.EXP.KPHI.WW.Y.0007.000000T0000Z-150124T1300Z/ MIDDLESEX-WESTERN MONMOUTH-MERCER-DELAWARE-PHILADELPHIA- WESTERN CHESTER-EASTERN CHESTER-EASTERN MONTGOMERY-LOWER BUCKS- INCLUDING THE CITIES OF...NEW BRUNSWICK...FREEHOLD...TRENTON... MEDIA...PHILADELPHIA...HONEY BROOK...OXFORD...WEST CHESTER... KENNETT SQUARE...NORRISTOWN...LANSDALE...MORRISVILLE...DOYLESTOWN 755 AM EST SAT JAN 24 2015 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 8 AM EST THIS MORNING... LIGHT RAIN AND DRIZZLE ARE EXPECTED THIS MORNING WITH TEMPERATURES MAINLY IN THE MIDDLE 30S. LIGHT RAIN AND SNOW SHOWERS ARE ANTICIPATED FOR THIS AFTERNOON, WITH LITTLE OR NO ADDITIONAL SNOW ACCUMULATION FORECAST. AS A RESULT, THE WINTER WEATHER ADVISORY WILL EXPIRE AT 800 AM. $$ NJZ001-007>010-PAZ054-055-060>062-103-105-241600- /O.CON.KPHI.WS.W.0001.000000T0000Z-150124T1600Z/ SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-CARBON-MONROE-BERKS- LEHIGH-NORTHAMPTON-WESTERN MONTGOMERY-UPPER BUCKS- INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN... FLEMINGTON...SOMERVILLE...JIM THORPE...STROUDSBURG...READING... ALLENTOWN...BETHLEHEM...EASTON...COLLEGEVILLE...POTTSTOWN... CHALFONT...PERKASIE 755 AM EST SAT JAN 24 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM EST THIS MORNING... * LOCATIONS...EASTERN PENNSYLVANIA INCLUDING READING...THE LEHIGH VALLEY AND POCONOS INTO NORTHERN NEW JERSEY. BASICALLY THIS COVERS THE REGION ALONG AND NORTH OF INTERSTATE 78. * ACCUMULATIONS...STORM TOTAL SNOW ACCUMULATION OF 4 TO 9 INCHES...ALONG WITH AROUND A TRACE OF ICE. * TIMING...LIGHT SNOW WILL CONTINUE THIS MORNING...ALONG WITH PATCHY SLEET AND FREEZING RAIN...MAINLY TO THE SOUTH OF INTERSTATE 80. * IMPACTS...SUBSTANTIAL IMPACT TO TRAVEL UNTIL ROADS ARE CLEARED. THERE IS A SMALL CHANCE OF SCATTERED POWER OUTAGES WHERE 6 INCHES OR MORE OF SNOW COLLECTS ON BRANCHES AND WIRES. * WINDS...NORTH TO NORTHEAST 5 TO 10 MPH WITH GUSTS UP TO 20 MPH. * VISIBILITIES...ONE MILE OR LESS AT TIMES. * TEMPERATURES...BETWEEN 30 AND 35 DEGREES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. HIS WILL MAKE TRAVEL VERY HAZARDOUS. && $$
962 WWUS41 KPHI 241430 WSWPHI URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 930 AM EST SAT JAN 24 2015 NJZ001-007>010-PAZ054-055-060>062-103-105-241800- /O.EXT.KPHI.WS.W.0001.000000T0000Z-150124T1800Z/ SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-CARBON-MONROE-BERKS- LEHIGH-NORTHAMPTON-WESTERN MONTGOMERY-UPPER BUCKS- INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN... FLEMINGTON...SOMERVILLE...JIM THORPE...STROUDSBURG...READING... ALLENTOWN...BETHLEHEM...EASTON...COLLEGEVILLE...POTTSTOWN... CHALFONT...PERKASIE 930 AM EST SAT JAN 24 2015 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 1 PM EST THIS AFTERNOON... * LOCATIONS...EASTERN PENNSYLVANIA INCLUDING READING...THE LEHIGH VALLEY AND POCONOS INTO NORTHERN NEW JERSEY. BASICALLY THIS COVERS THE REGION ALONG AND NORTH OF INTERSTATE 78. * ACCUMULATIONS...STORM TOTAL SNOW ACCUMULATION OF 4 TO 9 INCHES...ALONG WITH AROUND A TRACE OF ICE. * TIMING...LIGHT SNOW WILL CONTINUE DURING THE BALANCE OF THIS MORNING AND INTO THE EARLY AFTERNOON...ALONG WITH PATCHY SLEET AND FREEZING RAIN...MAINLY TO THE SOUTH OF INTERSTATE 80. * IMPACTS...SUBSTANTIAL IMPACT TO TRAVEL UNTIL ROADS ARE CLEARED. THERE IS A SMALL CHANCE OF SCATTERED POWER OUTAGES WHERE 6 INCHES OR MORE OF SNOW COLLECTS ON BRANCHES AND WIRES. * WINDS...NORTH TO NORTHEAST 5 TO 10 MPH WITH GUSTS UP TO 20 MPH. * VISIBILITIES...ONE MILE OR LESS AT TIMES. * TEMPERATURES...BETWEEN 30 AND 35 DEGREES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS. && $$
387 WWUS41 KPHI 241752 WSWPHI URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1252 PM EST SAT JAN 24 2015 NJZ001-007>010-PAZ054-055-060>062-103-105-241900- /O.EXP.KPHI.WS.W.0001.000000T0000Z-150124T1800Z/ SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-CARBON-MONROE-BERKS- LEHIGH-NORTHAMPTON-WESTERN MONTGOMERY-UPPER BUCKS- INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN... FLEMINGTON...SOMERVILLE...JIM THORPE...STROUDSBURG...READING... ALLENTOWN...BETHLEHEM...EASTON...COLLEGEVILLE...POTTSTOWN... CHALFONT...PERKASIE 1252 PM EST SAT JAN 24 2015 ...WINTER STORM WARNING WILL EXPIRE AT 1 PM EST THIS AFTERNOON... SCATTERED SNOW SHOWERS ARE EXPECTED FOR THIS AFTERNOON. HOWEVER, LITTLE ADDITIONAL SNOW ACCUMULATION IS ANTICIPATED. AS A RESULT, THE WINTER STORM WARNING WILL EXPIRE AT 100 PM. $$ IOVINO
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 24, 3:59 PM EST | Gale Watch | PHI | 12 hr |
Nearby
Winter Storm Warnings in Pennsylvania, 2015Winter Storm Warnings in New Jersey, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.