Alert archive / Pennsylvania / Winter Weather Advisories in 2011
Winter Weather Advisory 21, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this winter weather advisory at Apr 1, 2011, 3:57 AM EDT for Carbon County, Monroe County, Pennsylvania; Sussex County, New Jersey. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Apr 1, 2011, 3:57 AM EDT (07:57 UTC)
- Expired
- Apr 1, 2011, 12:00 PM EDT
- In force
- 8 hr
- 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 07:57 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, 8.0 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
- 2 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 443 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 374 m²/s²
- 0-3 km storm-relative helicity
- 380 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
042 WWUS41 KPHI 010757 WSWPHI URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 357 AM EDT FRI APR 1 2011 NJZ001-PAZ054-055-011400- /O.CAN.KPHI.WS.W.0009.000000T0000Z-110401T1600Z/ /O.NEW.KPHI.WW.Y.0021.110401T0757Z-110401T1400Z/ SUSSEX-CARBON-MONROE- INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG 357 AM EDT FRI APR 1 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM EDT THIS MORNING... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 10 AM EDT THIS MORNING. THE WINTER STORM WARNING HAS BEEN CANCELLED. * LOCATIONS...CARBON AND MONROE COUNTIES IN EASTERN PENNSYLVANIA... AND SUSSEX COUNTY IN NORTHWESTERN NEW JERSEY. * HAZARD TYPES...SNOW. * ACCUMULATIONS...2 TO 3 INCHES OF SNOW...WITH THE GREATEST ACCUMULATIONS OVER THE HIGHER ELEVATIONS. * TIMING...UNTIL 10 AM THIS MORNING. * IMPACTS...SLIPPERY ROADS AND WALKS ALONG WITH DEGRADED TRAVEL. 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. && $$ NJZ007-008-PAZ061-062-010900- /O.CAN.KPHI.WW.Y.0020.000000T0000Z-110401T1400Z/ WARREN-MORRIS-LEHIGH-NORTHAMPTON- INCLUDING THE CITIES OF...WASHINGTON...MORRISTOWN...ALLENTOWN... BETHLEHEM...EASTON 357 AM EDT FRI APR 1 2011 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE WINTER WEATHER ADVISORY. ANY HIGHER ELEVATION SNOWFALL ACCUMULATION WILL BE LIGHT AND SHOULD NOT CAUSE ANY SIGNIFICANT PROBLEMS. $$
2 follow-up statements
091 WWUS41 KPHI 011354 WSWPHI URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 954 AM EDT FRI APR 1 2011 NJZ001-PAZ054-055-011600- /O.EXT.KPHI.WW.Y.0021.000000T0000Z-110401T1600Z/ SUSSEX-CARBON-MONROE- INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG 954 AM EDT FRI APR 1 2011 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL NOON EDT TODAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL NOON EDT TODAY. * LOCATIONS...CARBON AND MONROE COUNTIES IN EASTERN PENNSYLVANIA... AND SUSSEX COUNTY IN NORTHWESTERN NEW JERSEY. * HAZARD TYPES...SNOW. * ACCUMULATIONS...2 TO 4 INCHES OF SNOW. * TIMING...UNTIL 12 PM TODAY. * IMPACTS...SLIPPERY ROADS AND WALKS ALONG WITH DEGRADED TRAVEL. 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. && $$ HEAVENER
578 WWUS41 KPHI 011605 WSWPHI URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1205 PM EDT FRI APR 1 2011 NJZ001-PAZ054-055-011715- /O.EXP.KPHI.WW.Y.0021.000000T0000Z-110401T1600Z/ SUSSEX-CARBON-MONROE- INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG 1205 PM EDT FRI APR 1 2011 ...WINTER WEATHER ADVISORY HAS EXPIRED... THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. A MAJORITY OF THE HEAVIER SNOWFALL HAS ENDED IN THE COUNTIES ORIGINALLY WITHIN THE ADVISORY. THERE COULD STILL BE A FEW PLACES, MAINLY IN THE HIGHER ELEVATIONS, THAT COULD RECEIVE ANOTHER INCH OR SO OF SNOW, BUT THE WIDESPREAD THREAT HAS ENDED. $$ HEAVENER
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 4:08 AM EDT | Small Craft Advisory | PHI | 19 hr | |
| Apr 1, 5:56 AM EDT | Coastal Flood Statement | PHI | Atlantic, Burlington, Cape May, Middlesex, Monmouth, Ocean | 5 hr |
Nearby
Winter Weather Advisories in Pennsylvania, 2011Winter Weather Advisories in New Jersey, 2011Every winter weather advisory in 2011
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.