Alert archive / New Jersey / Winter Storm Warnings in 2009
Winter Storm Warning 4, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this winter storm warning at Feb 3, 2009, 9:40 PM EST for 5 counties in New Jersey; Delaware County, Philadelphia County, Pennsylvania. It was in force for 6 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
- Feb 3, 2009, 9:40 PM EST (02:40 UTC)
- Expired
- Feb 4, 2009, 3:45 AM EST
- In force
- 6 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Atlantic County, NJ, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ, Delaware County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 66 km from the middle of the area, began a volume at 02:44 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
Wallops Is Stn, VA (KWAL), launched 00:00Z, 2.7 hours before the alert went out and 197 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
- 912 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- -111 m²/s²
- 0-3 km storm-relative helicity
- -116 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 040240 WSWPHI URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 940 PM EST TUE FEB 3 2009 ...PERIODS OF SNOW TO CONTINUE INTO TONIGHT... .AN AREA OF LOW PRESSURE OFF THE NEW ENGLAND COAST WILL CONTINUE TO MOVE NORTHEAST TONIGHT. HOWEVER, AN UPPER LEVEL DISTURBANCE WILL MOVE ACROSS THE REGION OVERNIGHT. NJZ016>018-021-022-PAZ070-071-040900- /O.UPG.KPHI.WW.Y.0005.000000T0000Z-090204T0500Z/ /O.NEW.KPHI.WS.W.0004.090204T0240Z-090204T0900Z/ SALEM-GLOUCESTER-CAMDEN-CUMBERLAND-ATLANTIC-DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...PENNSVILLE...GLASSBORO...CAMDEN... CHERRY HILL...MILLVILLE...HAMMONTON...MEDIA...PHILADELPHIA 940 PM EST TUE FEB 3 2009 ...WINTER STORM WARNING IN EFFECT UNTIL 4 AM EST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT UNTIL 4 AM EST WEDNESDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. AN UPPER AIR DISTURBANCE WILL CONTINUE TO MOVE ACROSS THE AREA TONIGHT. AN AREA OF HEAVY SNOWFALL ACROSS SOUTHERN NEW JERSEY WILL REMAIN THROUGH THE EARLY MORNING HOURS OF WEDNESDAY. TOTAL STORM ACCUMULATIONS IN THESE AREAS WILL BE 3 TO 5 INCHES. 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. $$ NJZ001-007>010-012>015-PAZ061-062-067>069-040500- /O.CON.KPHI.WW.Y.0005.000000T0000Z-090204T0500Z/ SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX- WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-LEHIGH-NORTHAMPTON- CHESTER-MONTGOMERY-BUCKS- INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN... FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...FREEHOLD...SANDY HOOK... TRENTON...ALLENTOWN...BETHLEHEM...EASTON...WEST CHESTER... NORRISTOWN...DOYLESTOWN 940 PM EST TUE FEB 3 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT. AN UPPER LEVEL DISTURBANCE WILL CROSS THE AREA OVERNIGHT. ADDITIONAL LIGHT ACCUMULATIONS ARE EXPECTED. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE AREAS OF SLIPPERY TRAVEL AND REDUCED VISIBILITIES. $$ NJZ023-024-040500- /O.CON.KPHI.WW.Y.0005.000000T0000Z-090204T0500Z/ CAPE MAY-ATLANTIC COASTAL CAPE MAY- INCLUDING THE CITIES OF...CAPE MAY COURT HOUSE...OCEAN CITY 940 PM EST TUE FEB 3 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT. AN UPPER LEVEL DISTURBANCE WILL CROSS THE AREA OVERNIGHT. ADDITIONAL LIGHT ACCUMULATIONS ARE EXPECTED. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE AREAS OF SLIPPERY TRAVEL AND REDUCED VISIBILITIES. $$ DEZ001-NJZ019-020-025>027-040500- /O.CON.KPHI.WW.Y.0005.000000T0000Z-090204T0500Z/ NEW CASTLE-NORTHWESTERN BURLINGTON-OCEAN-COASTAL ATLANTIC- COASTAL OCEAN-SOUTHEASTERN BURLINGTON- INCLUDING THE CITIES OF...WILMINGTON...MOORESTOWN...MOUNT HOLLY... JACKSON...ATLANTIC CITY...LONG BEACH ISLAND... WHARTON STATE FOREST 940 PM EST TUE FEB 3 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT. AN UPPER LEVEL DISTURBANCE WILL CROSS THE AREA OVERNIGHT. ADDITIONAL LIGHT ACCUMULATIONS ARE EXPECTED. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE AREAS OF SLIPPERY TRAVEL AND REDUCED VISIBILITIES. $$ PO
2 follow-up statements
000 WWUS41 KPHI 040502 WSWPHI URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1202 AM EST WED FEB 4 2009 ...PERIODS OF SNOW TO CONTINUE OVERNIGHT... .AN UPPER AIR DISTURBANCE WILL CONTINUE TO PRODUCE SNOW ACROSS SOUTHEAST PENNSYLVANIA AND SOUTHERN NEW JERSEY OVERNIGHT. NJZ001-007>010-012>015-019-020-023>027-PAZ061-062-069-040615- /O.CAN.KPHI.WW.Y.0005.000000T0000Z-090204T0500Z/ SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX- WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-NORTHWESTERN BURLINGTON- OCEAN-CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC- COASTAL OCEAN-SOUTHEASTERN BURLINGTON-LEHIGH-NORTHAMPTON-BUCKS- INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN... FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...FREEHOLD...SANDY HOOK... TRENTON...MOORESTOWN...MOUNT HOLLY...JACKSON... CAPE MAY COURT HOUSE...OCEAN CITY...ATLANTIC CITY... LONG BEACH ISLAND...WHARTON STATE FOREST...ALLENTOWN... BETHLEHEM...EASTON...DOYLESTOWN 1202 AM EST WED FEB 4 2009 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE WINTER WEATHER ADVISORY. THE WEATHER SYSTEM THAT BROUGHT SNOW TO THE AREA ON TUESDAY HAS WEAKENED. THE THREAT OF SIGNIFICANT ACCUMULATING SNOW HAS PASSED. $$ NJZ016>018-021-022-PAZ070-071-040900- /O.CON.KPHI.WS.W.0004.000000T0000Z-090204T0900Z/ SALEM-GLOUCESTER-CAMDEN-CUMBERLAND-ATLANTIC-DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...PENNSVILLE...GLASSBORO...CAMDEN... CHERRY HILL...MILLVILLE...HAMMONTON...MEDIA...PHILADELPHIA 1202 AM EST WED FEB 4 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM EST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM EST WEDNESDAY. AN UPPER AIR DISTURBANCE WILL CONTINUE TO MOVE ACROSS THE AREA OVERNIGHT. AN AREA OF HEAVY SNOWFALL CONTINUES ACROSS THE WARNED AREA, BUT IS SHOWING SIGNS OF WEAKENING. TOTAL STORM ACCUMULATIONS IN THESE AREAS WILL BE 4 TO 7 INCHES. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ DEZ001-PAZ067-068-040900- /O.EXT.KPHI.WW.Y.0005.000000T0000Z-090204T0900Z/ NEW CASTLE-CHESTER-MONTGOMERY- INCLUDING THE CITIES OF...WILMINGTON...WEST CHESTER...NORRISTOWN 1202 AM EST WED FEB 4 2009 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 AM EST WEDNESDAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 4 AM EST WEDNESDAY. AN UPPER LEVEL DISTURBANCE WILL CROSS THE AREA OVERNIGHT. ADDITIONAL LIGHT ACCUMULATIONS ARE EXPECTED. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE AREAS OF SLIPPERY TRAVEL AND REDUCED VISIBILITIES. $$
000 WWUS41 KPHI 040845 WSWPHI URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 345 AM EST WED FEB 4 2009 NJZ016>018-021-022-PAZ070-071-040945- /O.CAN.KPHI.WS.W.0004.000000T0000Z-090204T0900Z/ SALEM-GLOUCESTER-CAMDEN-CUMBERLAND-ATLANTIC-DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...PENNSVILLE...GLASSBORO...CAMDEN... CHERRY HILL...MILLVILLE...HAMMONTON...MEDIA...PHILADELPHIA 345 AM EST WED FEB 4 2009 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE WINTER STORM WARNING. THE SYSTEM THAT BROUGHT THE SNOW TO THE REGION WAS MOVING AWAY. WHILE THERE MAY BE SCATTERED LIGHT SNOW IN SOME AREAS EARLY, NO ADDITIONAL ACCUMULATIONS ARE EXPECTED. HOWEVER, WITH TEMPERATURES BELOW FREEZING, ROADS AND SIDEWALKS MAY BE SLICK AND HAZARDOUS. USE CAUTION WHEN TRAVELING THIS MORNING. $$ DEZ001-PAZ067-068-040945- /O.CAN.KPHI.WW.Y.0005.000000T0000Z-090204T0900Z/ NEW CASTLE-CHESTER-MONTGOMERY- INCLUDING THE CITIES OF...WILMINGTON...WEST CHESTER...NORRISTOWN 345 AM EST WED FEB 4 2009 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE WINTER WEATHER ADVISORY. THE SYSTEM THAT BROUGHT THE SNOW TO THE REGION WAS MOVING AWAY. WHILE THERE MAY BE SCATTERED LIGHT SNOW IN SOME AREAS EARLY, NO ADDITIONAL ACCUMULATIONS ARE EXPECTED. HOWEVER, WITH TEMPERATURES BELOW FREEZING, ROADS AND SIDEWALKS MAY BE SLICK AND HAZARDOUS. USE CAUTION WHEN TRAVELING THIS MORNING. $$
Nearby
Winter Storm Warnings in New Jersey, 2009Winter Storm Warnings in Pennsylvania, 2009Every winter storm warning in 2009
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.