Alert archive / Pennsylvania / Snow Advisories in 2007
Snow Advisory 9, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this snow advisory at Dec 30, 2007, 4:20 AM EST for Carbon County, Monroe County, Pennsylvania; Sussex County, New Jersey. It took effect at Dec 30, 2007, 6:00 PM EST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 30, 2007, 4:20 AM EST (09:20 UTC)
- In effect from
- Dec 30, 2007, 6:00 PM EST
- Expired
- Dec 30, 2007, 4:11 PM 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 09:23 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, 9.3 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
- 1365 m above ground
- 0-6 km bulk shear
- 98 kt
- 0-1 km storm-relative helicity
- -134 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS41 KPHI 300920 WSWPHI URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 420 AM EST SUN DEC 30 2007 ...ADVISORIES IN EFFECT FOR PART OF EASTERN PENNSYLVANIA AND NORTHWEST NEW JERSEY... ...QUICK MOVING STORM TO BRING WINTER WEATHER TO THE REGION... NJZ001-PAZ054-055-302000- /O.NEW.KPHI.SN.Y.0009.071230T2300Z-071231T1300Z/ SUSSEX-CARBON-MONROE- INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG 420 AM EST SUN DEC 30 2007 ...SNOW ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 8 AM EST MONDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 8 AM EST MONDAY. LOW PRESSURE WILL DEVELOP OVER THE SOUTHEAST STATES AND MOVE RAPIDLY TODAY, REMAINING EAST OF THE APPALACHIANS. THE LOW WILL INTENSIFY THIS EVENING AS IT MOVES OFF THE NEW JERSEY COAST TOWARD THE GULF OF MAINE BY MONDAY AFTERNOON. THE HEAVIEST SNOW IS EXPECTED TO FALL VERY LATE THIS EVENING UNTIL A FEW HOURS BEFORE SUNUP ON MONDAY. THE HIGHEST SNOWFALL AMOUNTS ARE GOING TO BE BETWEEN 4 AND POSSIBLY 6 INCHES WITH THE HIGHER ELEVATIONS RECEIVING THE MOST. IT APPEARS THE TEMPERATURES DURING THE HEIGHT OF PRECIPITATION WILL REMAIN COLD ENOUGH SO ALL SNOW WILL FALL. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ NJZ007-008-PAZ060>062-302000- /O.NEW.KPHI.WW.Y.0020.071230T2200Z-071231T1100Z/ WARREN-MORRIS-BERKS-LEHIGH-NORTHAMPTON- INCLUDING THE CITIES OF...WASHINGTON...MORRISTOWN...READING... ALLENTOWN...BETHLEHEM...EASTON 420 AM EST SUN DEC 30 2007 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 6 AM EST MONDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER WEATHER ADVISORY...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 6 AM EST MONDAY. LOW PRESSURE WILL DEVELOP OVER THE SOUTHEAST STATES AND MOVE RAPIDLY TODAY, REMAINING EAST OF THE APPALACHIANS. THE LOW WILL INTENSIFY THIS EVENING AS IT MOVES OFF THE NEW JERSEY COAST TOWARD THE GULF OF MAINE BY MONDAY AFTERNOON. THE HEAVIEST PRECIPITATION IS EXPECTED TO FALL LATE THIS EVENING UNTIL A FEW HOURS BEFORE SUNUP ON MONDAY. THE HIGHEST SNOWFALL AMOUNTS ARE GOING TO BE AROUND 3 INCHES IN THE NORTHERN HALF OF THE COUNTIES WITH PERHAPS 1 TO 2 INCHES ACROSS THE SOUTHERN END OF THE COUNTY. IT APPEARS AS THOUGH THE TEMPERATURES DURING THE HEIGHT OF PRECIPITATION WILL BE CLOSE ENOUGH TO FREEZING AT THE SURFACE AND SOMETIMES ALOFT TO MIX IN SOME RAIN YET ALSO BRING A PERIOD OF SLEET AT TIMES. THIS WILL INHIBIT THE AMOUNT OF SNOWFALL. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND SLEET WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ EBERWINE
2 follow-up statements
000 WWUS41 KPHI 301626 AAA WSWPHI URGENT - WINTER WEATHER MESSAGE...UPDATED NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1126 AM EST SUN DEC 30 2007 ...ADVISORIES IN EFFECT FOR PART OF EASTERN PENNSYLVANIA AND NORTHWEST NEW JERSEY... ...QUICK MOVING STORM TO BRING WINTER WEATHER TO THE REGION... NJZ007-008-PAZ060>062-310030- /O.EXT.KPHI.WW.Y.0020.071230T2300Z-071231T1100Z/ WARREN-MORRIS-BERKS-LEHIGH-NORTHAMPTON- INCLUDING THE CITIES OF...WASHINGTON...MORRISTOWN...READING... ALLENTOWN...BETHLEHEM...EASTON 1126 AM EST SUN DEC 30 2007 ...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 6 PM THIS EVENING TO 6 AM EST MONDAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT FROM 6 PM THIS EVENING TO 6 AM EST MONDAY. LOW PRESSURE DEVELOPING ACROSS THE SOUTHEASTERN STATES WILL MOVE RAPIDLY NORTHEAST THIS AFTERNOON...REMAINING EAST OF THE APPALACHIANS. THE LOW WILL INTENSIFY THIS EVENING AS IT MOVES OFF THE NEW JERSEY COAST AND HEADS TOWARD THE GULF OF MAINE. THE HEAVIEST PRECIPITATION IS EXPECTED TO FALL LATE THIS EVENING THROUGH A FEW HOURS BEFORE SUNRISE TOMORROW. THE HIGHEST SNOWFALL AMOUNTS, AROUND 3 INCHES, CAN BE EXPECTED ACROSS THE NORTHERN AND WESTERN PORTIONS OF THE COUNTY WITH PERHAPS 1 TO 2 INCHES ACROSS THE SOUTHERN END. IT APPEARS AS THOUGH THE TEMPERATURES DURING THE HEIGHT OF PRECIPITATION COULD CLIMB ABOVE FREEZING AT THE SURFACE AND SOMETIMES ALOFT. THIS COULD CHANGE THE SNOW TO RAIN OR SLEET AND INHIBIT ACCUMULATIONS...ESPECIALLY AS YOU APPROACH THE DELAWARE VALLEY. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND SLEET WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ NJZ001-PAZ054-055-310030- /O.CON.KPHI.SN.Y.0009.071230T2300Z-071231T1300Z/ SUSSEX-CARBON-MONROE- INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG 1126 AM EST SUN DEC 30 2007 ...SNOW ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 8 AM EST MONDAY... A SNOW ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 8 AM EST MONDAY. LOW PRESSURE DEVELOPING ACROSS THE SOUTHEASTERN STATES WILL MOVE RAPIDLY NORTHEAST THIS AFTERNOON...REMAINING EAST OF THE APPALACHIANS. THE LOW WILL INTENSIFY THIS EVENING AS IT MOVES OFF THE NEW JERSEY COAST AND HEADS TOWARD THE GULF OF MAINE. THE HEAVIEST SNOW IS EXPECTED TO FALL LATE THIS EVENING THROUGH A FEW HOURS BEFORE SUNRISE TOMORROW. THE HIGHEST SNOWFALL AMOUNTS WILL BE BETWEEN 4 AND 6 INCHES...WITH THE HIGHER ELEVATIONS RECEIVING THE MOST. IT APPEARS THE TEMPERATURES DURING THE HEIGHT OF PRECIPITATION WILL REMAIN JUST COLD ENOUGH SO THAT MOST OF THE PRECIPITATION WILL FALL AS SNOW. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ KRUZDLO
000 WWUS41 KPHI 302111 WSWPHI URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 411 PM EST SUN DEC 30 2007 ...ADVISORIES IN EFFECT FOR PART OF EASTERN PENNSYLVANIA AND NORTHWEST NEW JERSEY... ...QUICK MOVING STORM TO BRING WINTER WEATHER TO THE REGION... NJZ001-PAZ054-055-311100- /O.CAN.KPHI.SN.Y.0009.071230T2300Z-071231T1300Z/ /O.EXB.KPHI.WW.Y.0020.071230T2200Z-071231T1100Z/ SUSSEX-CARBON-MONROE- INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG 411 PM EST SUN DEC 30 2007 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM EST MONDAY... ...SNOW ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER WEATHER ADVISORY...WHICH IS IN EFFECT UNTIL 6 AM EST MONDAY. THE SNOW ADVISORY HAS BEEN CANCELLED. LOW PRESSURE MOVING TOWARD THE MID-ATLANTIC COAST THIS AFTERNOON WILL LIFT NORTHEAST RAPIDLY...REMAINING EAST OF THE APPALACHIANS. THE LOW WILL INTENSIFY AS IT MOVES OFF NORFOLK THIS EVENING AND THEN LIFTS NORTHEAST TOWARD THE GULF OF MAINE. THE HEAVIEST PRECIPITATION IS EXPECTED TO FALL LATER THIS EVENING THROUGH A FEW HOURS BEFORE SUNRISE TOMORROW. PRECIPITATION MAINLY WILL BE SNOW...BUT SOME SLEET MAY MIX IN THROUGH THE EVENING. ACCUMULATIONS ARE FORECAST TO RANGE FROM 5 TO 6 INCHES OVER THE HIGHER ELEVATIONS OF THE SOUTHERN POCONOS...AND FROM 2 TO 5 INCHES ELSEWHERE IN CARBON AND MONROE COUNTIES AND IN SUSSEX COUNTY OF FAR NORTHWEST NEW JERSEY. THIS WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...AND PERHAPS SOME SLEET...WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ NJZ007-008-PAZ060>062-311100- /O.EXT.KPHI.WW.Y.0020.071230T2200Z-071231T1100Z/ WARREN-MORRIS-BERKS-LEHIGH-NORTHAMPTON- INCLUDING THE CITIES OF...WASHINGTON...MORRISTOWN...READING... ALLENTOWN...BETHLEHEM...EASTON 411 PM EST SUN DEC 30 2007 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM EST MONDAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 6 AM EST MONDAY. LOW PRESSURE MOVING TOWARD THE MID-ATLANTIC COAST THIS AFTERNOON WILL LIFT NORTHEAST RAPIDLY...REMAINING EAST OF THE APPALACHIANS. THE LOW WILL INTENSIFY AS IT MOVES OFF NORFOLK THIS EVENING AND THEN LIFTS NORTHEAST TOWARD THE GULF OF MAINE. THE HEAVIEST PRECIPITATION IS EXPECTED TO FALL LATER THIS EVENING THROUGH A FEW HOURS BEFORE SUNRISE TOMORROW. SNOW AND SLEET...AND PERHAPS SOME RAIN ESPECIALLY OVER THE LOWER ELEVATIONS SOUTH AND EAST...ARE FORECAST TO TURN TO SNOW OVERNIGHT. TOTAL SNOW AND SLEET ACCUMULATIONS ARE FORECAST TO RANGE FROM UP TO 4 INCHES OVER THE HIGHEST ELEVATIONS NORTH AND WEST TO AROUND AN INCH SOUTH AND EAST. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND SLEET WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MPD
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 30, 4:20 AM EST | Winter Weather Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 24 hr |
Nearby
Snow Advisories in Pennsylvania, 2007Snow Advisories in New Jersey, 2007Every snow advisory in 2007
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.