Alert archive / Pennsylvania / Winter Storm Watches in 2015
Winter Storm Watch 3, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this winter storm watch at Feb 7, 2015, 3:47 AM EST for Carbon County, Monroe County, Pennsylvania; Sussex County, New Jersey. It took effect at Feb 8, 2015, 6:00 PM EST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Feb 7, 2015, 3:47 AM EST (08:47 UTC)
- In effect from
- Feb 8, 2015, 6:00 PM EST
- Expired
- Feb 8, 2015, 4:42 AM EST
- In force
- Issued by
- NWS Philadelphia/Mount Holly
Counties Sussex County, NJ, Carbon County, PA, Monroe County, PA
The radar
The Philadelphia radar (KDIX), 140 km from the middle of the area, began a volume at 08:45 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 201 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
- 1371 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 195 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
346 WWUS41 KPHI 070847 WSWPHI URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 347 AM EST SAT FEB 7 2015 ...SIGNIFICANT WINTER WEATHER POSSIBLE SUNDAY NIGHT INTO MONDAY NIGHT... .A LOW PRESSURE SYSTEM WILL TRACK ALONG A FRONTAL BOUNDARY LATE SUNDAY AND MONDAY. AS THE FRONT SETTLES SOUTHWARD, COLDER AIR WILL MOVE IN FROM THE NORTHEAST. INITIALLY THOUGH WARMER AIR WILL ALLOW FOR MIXED PRECIPITATION, WHICH SHOULD THEN CHANGE TO SNOW THROUGH MONDAY. A TIGHT GRADIENT IN THE SNOW AMOUNTS MAY OCCUR NEAR AND NORTH OF THE POCONOS, THEREFORE LESS CERTAINTY EXISTS WITH THE ACTUAL AMOUNTS. SNOW AND ICE ARE ANTICIPATED AND THE COMBINATION OF THESE COULD BE SIGNIFICANT, THEREFORE A WINTER STORM WATCH HAS BEEN ISSUED. NJZ001-PAZ054-055-072100- /O.NEW.KPHI.WS.A.0003.150208T2300Z-150210T0600Z/ SUSSEX-CARBON-MONROE- INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG 347 AM EST SAT FEB 7 2015 ...WINTER STORM WATCH IN EFFECT FROM SUNDAY EVENING THROUGH LATE MONDAY NIGHT... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER STORM WATCH, WHICH IS IN EFFECT FROM SUNDAY EVENING THROUGH LATE MONDAY NIGHT. * HAZARD TYPES...SNOW, SLEET AND FREEZING RAIN. * ACCUMULATIONS...4 TO 6 INCHES OF SNOW AND SLEET, WITH UP TO ONE QUARTER INCH OF ICE POSSIBLE. A TIGHT GRADIENT IN SNOWFALL HOWEVER MAY OCCUR NEARBY AND ANY SHIFT IN THE STORM TRACK WILL AFFECT THE AMOUNTS IN THE WATCH AREA. * TIMING...RAIN, FREEZING RAIN AND SLEET SHOULD TRANSITION TO SNOW AND SLEET SUNDAY NIGHT INTO MONDAY MORNING. IT APPEARS THAT MOSTLY SNOW WILL THEN OCCUR DURING MONDAY BEFORE TAPERING OFF MONDAY NIGHT. * IMPACTS...HAZARDOUS CONDITIONS ARE POSSIBLE DUE TO SNOW AND ICE. THIS WILL HAVE AN IMPACT ON THE MONDAY MORNING AND EVENING COMMUTES. * TEMPERATURES...IN THE LOWER 30S SUNDAY EVENING, THEN DROPPING INTO THE 20S MONDAY AND MONDAY NIGHT. * VISIBILITIES...AS LOW AS ONE HALF MILE AT TIMES POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW, SLEET OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$ GORSE
3 follow-up statements
757 WWUS41 KPHI 072052 WSWPHI URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 352 PM EST SAT FEB 7 2015 ...SIGNIFICANT WINTER WEATHER POSSIBLE SUNDAY NIGHT INTO MONDAY NIGHT... .A LOW PRESSURE SYSTEM WILL TRACK ALONG A FRONTAL BOUNDARY SUNDAY NIGHT AND MONDAY. WARMER AIR INITIALLY WILL YIELD A WINTRY MIX OF PRECIPITATION SUNDAY NIGHT. THERE IS STILL SOME UNCERTAINTY REGARDING WHEN THE TRANSITION FROM A WINTRY MIX TO ALL SNOW OCCURS. A QUICKER SOUTHWARD PROGRESSION OF THE COLD AIR WILL YIELD HIGHER SNOWFALL AMOUNTS AND LESS ICING WITH A CHANGEOVER TO SNOW OCCURRING EARLY ON MONDAY. CONVERSELY, A LATER ARRIVAL OF THE COLD AIR LATE WILL YIELD LESS SNOWFALL AND MORE ICING WITH A CHANGEOVER TO SNOW LATE IN THE DAY MONDAY. REGARDLESS, THE IMPACT FROM A COMBINATION OF SNOW AND ICE COULD POTENTIALLY BE SIGNIFICANT. NJZ001-PAZ054-055-080500- /O.CON.KPHI.WS.A.0003.150208T2300Z-150210T0600Z/ SUSSEX-CARBON-MONROE- INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG 352 PM EST SAT FEB 7 2015 ...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY EVENING THROUGH LATE MONDAY NIGHT... * HAZARD TYPES...SNOW... SLEET AND FREEZING RAIN. * SNOW ACCUMULATIONS...4 TO 6 INCHES OF SNOW AND SLEET IS POSSIBLE. * ICE ACCUMULATIONS...UP TO ONE-QUARTER INCH OF ICE POSSIBLE. * TIMING...RAIN... FREEZING RAIN AND SLEET SHOULD TRANSITION TO SNOW AND SLEET EITHER SUNDAY NIGHT OR MONDAY MORNING. THERE IS STILL SOME UNCERTAINTY REGARDING WHEN THE TRANSITION FROM A WINTRY MIX TO ALL SNOW OCCURS, BUT IT WILL MOST LIKELY OCCUR SOMETIME ON MONDAY. THE SNOW IS EXPECTED TO TAPER OFF MONDAY NIGHT. * IMPACTS...A POTENTIAL FOR HAZARDOUS TRAVEL DUE TO SNOW AND ICE THAT INCLUDES PORTIONS I-80. THIS WILL HAVE AN IMPACT ON THE MONDAY MORNING AND EVENING COMMUTES. * TEMPERATURES...IN THE LOWER 30S SUNDAY EVENING...THEN DROPPING INTO THE 20S MONDAY AND MONDAY NIGHT. * VISIBILITIES...AS LOW AS ONE HALF MILE AT TIMES POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW... SLEET OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$ JRK
266 WWUS41 KPHI 080305 WSWPHI URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1005 PM EST SAT FEB 7 2015 ...SIGNIFICANT WINTER WEATHER POSSIBLE SUNDAY NIGHT INTO MONDAY NIGHT... .A LOW PRESSURE SYSTEM WILL TRACK ALONG A FRONTAL BOUNDARY SUNDAY NIGHT AND MONDAY. WARMER AIR INITIALLY WILL YIELD A WINTRY MIX OF PRECIPITATION SUNDAY NIGHT. THERE IS STILL SOME UNCERTAINTY REGARDING WHEN THE TRANSITION FROM A WINTRY MIX TO ALL SNOW OCCURS. A QUICKER SOUTHWARD PROGRESSION OF THE COLD AIR WILL YIELD HIGHER SNOWFALL AMOUNTS AND LESS ICING WITH A CHANGEOVER TO SNOW OCCURRING EARLY ON MONDAY. CONVERSELY... A LATER ARRIVAL OF THE COLD AIR LATE WILL YIELD LESS SNOWFALL AND MORE ICING WITH A CHANGEOVER TO SNOW LATE IN THE DAY MONDAY. REGARDLESS... THE IMPACT FROM A COMBINATION OF SNOW AND ICE COULD POTENTIALLY BE SIGNIFICANT. NJZ001-PAZ054-055-081115- /O.CON.KPHI.WS.A.0003.150208T2300Z-150210T0600Z/ SUSSEX-CARBON-MONROE- INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG 1005 PM EST SAT FEB 7 2015 ...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY EVENING THROUGH LATE MONDAY NIGHT... * HAZARD TYPES...SNOW... SLEET AND FREEZING RAIN. * SNOW ACCUMULATIONS...4 TO 6 INCHES OF SNOW AND SLEET IS POSSIBLE. * ICE ACCUMULATIONS...UP TO ONE-QUARTER INCH OF ICE POSSIBLE. * TIMING...RAIN...FREEZING RAIN AND SLEET SHOULD TRANSITION TO SNOW AND SLEET EITHER SUNDAY NIGHT OR MONDAY MORNING. THERE IS STILL SOME UNCERTAINTY REGARDING WHEN THE TRANSITION FROM A WINTRY MIX TO ALL SNOW OCCURS...BUT IT WILL MOST LIKELY OCCUR SOMETIME ON MONDAY. THE SNOW IS EXPECTED TO TAPER OFF MONDAY NIGHT. * IMPACTS...A POTENTIAL FOR HAZARDOUS TRAVEL DUE TO SNOW AND ICE THAT INCLUDES PORTIONS I-80. THIS WILL HAVE AN IMPACT ON THE MONDAY MORNING AND EVENING COMMUTES. * TEMPERATURES...IN THE LOWER 30S SUNDAY EVENING...THEN DROPPING INTO THE 20S MONDAY AND MONDAY NIGHT. * VISIBILITIES...AS LOW AS ONE HALF MILE AT TIMES POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW... SLEET OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
753 WWUS41 KPHI 080942 WSWPHI URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 442 AM EST SUN FEB 8 2015 ...A WINTRY MIX OF PRECIPITATION IS EXPECTED FOR TONIGHT INTO MONDAY NIGHT... .LOW PRESSURE CENTERED NEAR CHICAGO EARLY THIS MORNING WILL MOVE EAST SOUTHEASTWARD AND IT SHOULD PASS OFF THE MIDDLE ATLANTIC COAST ON MONDAY NIGHT. THE SYSTEM WILL BRING A WINTRY MIX OF PRECIPITATION TO OUR REGION FOR TONIGHT, MONDAY AND MONDAY NIGHT. NJZ001-PAZ054-055-082100- /O.UPG.KPHI.WS.A.0003.150208T2300Z-150210T0600Z/ /O.NEW.KPHI.WW.Y.0012.150208T2300Z-150210T1100Z/ SUSSEX-CARBON-MONROE- INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG 442 AM EST SUN FEB 8 2015 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 AM EST TUESDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER WEATHER ADVISORY FOR FREEZING RAIN, SLEET AND SNOW. IT IS IN EFFECT FROM 600 PM THIS EVENING UNTIL 600 AM ON TUESDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * HAZARD TYPES...FREEZING RAIN, SLEET AND SNOW. * SNOW ACCUMULATIONS...THERE IS THE POTENTIAL FOR 3 TO 7 INCHES. * ICE ACCUMULATIONS...THERE IS THE POTENTIAL FOR ONE TENTH TO ONE QUARTER INCH. * TIMING...FREEZING RAIN IS FORECAST TO MOVE INTO THE REGION THIS EVENING. THE PRECIPITATION IS EXPECTED TO TRANSITION THROUGH SLEET FROM LATE TONIGHT INTO MONDAY MORNING BEFORE CHANGING TO ALL SNOW FOR MONDAY INTO MONDAY NIGHT. * IMPACTS...THE ICE AND SNOW WILL MAKE TRAVEL DIFFICULT IN THE REGION FROM SUNDAY NIGHT THROUGH MONDAY NIGHT. * TEMPERATURES...MAINLY IN THE 20S FROM SUNDAY NIGHT INTO MONDAY NIGHT. * VISIBILITY...LESS THAN A QUARTER MILE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW, SLEET AND FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITY AND USE EXTRA CAUTION IF DRIVING. && $$ NJZ007-008-PAZ062-082100- /O.NEW.KPHI.WW.Y.0012.150208T2300Z-150210T1100Z/ WARREN-MORRIS-NORTHAMPTON- INCLUDING THE CITIES OF...WASHINGTON...MORRISTOWN...BETHLEHEM... EASTON 442 AM EST SUN FEB 8 2015 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 AM EST TUESDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER WEATHER ADVISORY FOR FREEZING RAIN, SLEET AND SNOW. IT IS IN EFFECT FROM 600 PM THIS EVENING UNTIL 600 AM TUESDAY. * HAZARD TYPES...FREEZING RAIN, SLEET AND SNOW. * SNOW ACCUMULATIONS...THERE IS THE POTENTIAL FOR 2 TO 5 INCHES. * ICE ACCUMULATIONS...THERE IS THE POTENTIAL FOR ONE TENTH TO ONE QUARTER INCH. * TIMING...RAIN AND FREEZING RAIN IS FORECAST TO MOVE INTO THE REGION THIS EVENING. THE PRECIPITATION IS EXPECTED TO TRANSITION TO FREEZING RAIN, SLEET AND SNOW FOR LATE TONIGHT INTO MONDAY BEFORE CHANGING TO ALL SNOW ON MONDAY NIGHT. * IMPACTS...THE ICE AND SNOW WILL MAKE TRAVEL DIFFICULT IN THE REGION FROM SUNDAY NIGHT THROUGH MONDAY NIGHT. * TEMPERATURES...MAINLY IN THE LOWER 30S TONIGHT, AROUND 30 ON MONDAY AND DROPPING INTO THE 20S ON MONDAY NIGHT. * VISIBILITY...LESS THAN A QUARTER MILE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW, SLEET AND FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITY AND USE EXTRA CAUTION IF DRIVING. && $$ NJZ009-010-PAZ061-105-082100- /O.NEW.KPHI.WW.Y.0012.150209T0500Z-150210T1100Z/ HUNTERDON-SOMERSET-LEHIGH-UPPER BUCKS- INCLUDING THE CITIES OF...FLEMINGTON...SOMERVILLE...ALLENTOWN... CHALFONT...PERKASIE 442 AM EST SUN FEB 8 2015 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM EST TUESDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER WEATHER ADVISORY FOR FREEZING RAIN, SLEET AND SNOW. IT IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 600 AM TUESDAY. * HAZARD TYPES...FREEZING RAIN, SLEET AND SNOW. * SNOW ACCUMULATIONS...THERE IS THE POTENTIAL FOR 1 TO 3 INCHES. * ICE ACCUMULATIONS...THERE IS THE POTENTIAL FOR UP TO ONE TENTH OF AN INCH. * TIMING...RAIN IS FORECAST TO MOVE INTO THE REGION THIS EVENING. THE RAIN IS EXPECTED TO CHANGE TO FREEZING RAIN AND SLEET LATE TONIGHT. THE PRECIPITATION IS ANTICIPATED TO MIX WITH SNOW ON MONDAY BEFORE CHANGING TO ALL SNOW ON MONDAY NIGHT. * IMPACTS...THE ICE AND SNOW WILL MAKE TRAVEL DIFFICULT IN THE REGION FROM LATE TONIGHT THROUGH MONDAY NIGHT. * TEMPERATURES...MAINLY IN THE LOWER 30S LATE TONIGHT AND MONDAY, FALLING INTO THE 20S ON MONDAY NIGHT. * VISIBILITY...LESS THAN A HALF MILE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW, SLEET AND FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITY AND USE EXTRA CAUTION IF DRIVING. && $$ NJZ012-015-PAZ060-101>104-106-082100- /O.NEW.KPHI.WW.Y.0012.150209T1100Z-150210T1100Z/ MIDDLESEX-MERCER-BERKS-WESTERN CHESTER-EASTERN CHESTER- WESTERN MONTGOMERY-EASTERN MONTGOMERY-LOWER BUCKS- INCLUDING THE CITIES OF...NEW BRUNSWICK...TRENTON...READING... HONEY BROOK...OXFORD...WEST CHESTER...KENNETT SQUARE... COLLEGEVILLE...POTTSTOWN...NORRISTOWN...LANSDALE...MORRISVILLE... DOYLESTOWN 442 AM EST SUN FEB 8 2015 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM MONDAY TO 6 AM EST TUESDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER WEATHER ADVISORY FOR FREEZING RAIN, SLEET AND SNOW. IT IS IN EFFECT FROM 600 AM MONDAY UNTIL 600 AM TUESDAY. * HAZARD TYPES...FREEZING RAIN, SLEET AND SNOW. * SNOW ACCUMULATIONS...THERE IS THE POTENTIAL FOR UP TO AN INCH OR TWO. * ICE ACCUMULATIONS...THERE IS THE POTENTIAL FOR UP TO ONE TENTH OF AN INCH. * TIMING...RAIN IS FORECAST TO MOVE INTO THE REGION TONIGHT. THE RAIN IS EXPECTED TO MIX WITH FREEZING RAIN, SLEET AND SNOW ON MONDAY BEFORE CHANGING TO SNOW AND SLEET ON MONDAY NIGHT. * IMPACTS...THE ICE AND SNOW WILL MAKE TRAVEL DIFFICULT IN THE REGION FROM MONDAY THROUGH MONDAY NIGHT. * TEMPERATURES...MAINLY IN THE LOWER AND MIDDLE 30S ON MONDAY, FALLING INTO THE 20S ON MONDAY NIGHT. * VISIBILITY...LESS THAN A HALF MILE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW, SLEET AND FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITY AND USE EXTRA CAUTION IF DRIVING. && $$ IOVINO
Nearby
Winter Storm Watches in Pennsylvania, 2015Winter Storm Watches in New Jersey, 2015Every winter storm watch 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.