Alert archive / New Jersey / High Wind Watches in 2011

High Wind Watch 1, NWS Philadelphia/Mount Holly

February 18, 20114 states

NWS Philadelphia/Mount Holly issued this high wind watch at Feb 18, 2011, 3:03 PM EST for 4 states. It took effect at Feb 19, 2011, 5:00 AM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Feb 18, 2011, 3:03 PM EST (20:03 UTC)
In effect from
Feb 19, 2011, 5:00 AM EST
Expired
Feb 18, 2011, 9:06 PM EST
In force
Issued by
NWS Philadelphia/Mount Holly
All 31 counties

Kent County, DE, New Castle County, DE, Sussex County, DE, Caroline County, MD, Cecil County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD, Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Salem County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Berks County, PA, Carbon County, PA, Delaware County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 67 km from the middle of the area, began a volume at 20:06 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 8.1 hours before the alert went out and 94 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.

Skew-T log-pSkew-T log-p diagram, Phillips Aaf/Abe, MD at 12:00Z on 2011-02-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Phillips Aaf/Abe, MD at 12:00Z on 2011-02-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 213 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1531 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
213 m²/s²
0-3 km storm-relative helicity
243 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

318 
WWUS71 KPHI 182003
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
303 PM EST FRI FEB 18 2011
 
DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-
055-060>062-067>071-191000-
/O.NEW.KPHI.HW.A.0001.110219T1000Z-110220T0200Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-SUSSEX-WARREN-MORRIS-HUNTERDON-
SOMERSET-MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-
ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-
COASTAL OCEAN-SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-
NORTHAMPTON-CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN...
REHOBOTH BEACH...ELKTON...CHESTERTOWN...CENTREVILLE...EASTON...
DENTON...NEWTON...WASHINGTON...MORRISTOWN...FLEMINGTON...
SOMERVILLE...NEW BRUNSWICK...FREEHOLD...SANDY HOOK...TRENTON...
PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN...
MOUNT HOLLY...JACKSON...MILLVILLE...HAMMONTON...
CAPE MAY COURT HOUSE...OCEAN CITY...ATLANTIC CITY...
LONG BEACH ISLAND...WHARTON STATE FOREST...JIM THORPE...
STROUDSBURG...READING...ALLENTOWN...BETHLEHEM...WEST CHESTER...
NORRISTOWN...DOYLESTOWN...MEDIA...PHILADELPHIA
303 PM EST FRI FEB 18 2011

...HIGH WIND WATCH IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY
EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A HIGH
WIND WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY EVENING. 

* LOCATIONS...THE HIGH WIND WATCH IS IN EFFECT FOR THE ENTIRE
  MOUNT HOLLY FORECAST AREA.

* HAZARDS...GUSTY TO LOCALLY DAMAGING WINDS ARE POSSIBLE ON
  SATURDAY. NUMEROUS TREE LIMBS WILL BE KNOCKED DOWN ALONG WITH
  WEAKER TREES AND POWER LINES. 

* WINDS...SUSTAINED NORTHWEST 20 TO 35 MPH WITH GUSTS UP TO 60
  MPH.

* TIMING...THE HIGHEST WINDS AND GUSTS ARE EXPECTED TO OCCUR
  BETWEEN 10 AM AND 5 PM ON SATURDAY.

* IMPACTS...EXPECT POWER OUTAGES. DOWNED TREES AND TREE LIMBS
  COULD DAMAGE VEHICLES PARKED UNDER THEM. WINDS WILL MAKE IT
  DIFFICULT TO DRIVE HIGH PROFILE VEHICLES ESPECIALLY ON BRIDGES
  AND OVERPASSES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS
HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF
58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST
FORECASTS.

&&

$$

MEOLA/GIGI
1 follow-up statement
191 
WWUS71 KPHI 190206
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
906 PM EST FRI FEB 18 2011

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-
055-060>062-067>071-191100-
/O.UPG.KPHI.HW.A.0001.110219T1000Z-110220T0200Z/
/O.NEW.KPHI.HW.W.0001.110219T1000Z-110220T0200Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-SUSSEX-WARREN-MORRIS-HUNTERDON-
SOMERSET-MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-
ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-
COASTAL OCEAN-SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-
NORTHAMPTON-CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN...
REHOBOTH BEACH...ELKTON...CHESTERTOWN...CENTREVILLE...EASTON...
DENTON...NEWTON...WASHINGTON...MORRISTOWN...FLEMINGTON...
SOMERVILLE...NEW BRUNSWICK...FREEHOLD...SANDY HOOK...TRENTON...
PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN...
MOUNT HOLLY...JACKSON...MILLVILLE...HAMMONTON...
CAPE MAY COURT HOUSE...OCEAN CITY...ATLANTIC CITY...
LONG BEACH ISLAND...WHARTON STATE FOREST...JIM THORPE...
STROUDSBURG...READING...ALLENTOWN...BETHLEHEM...WEST CHESTER...
NORRISTOWN...DOYLESTOWN...MEDIA...PHILADELPHIA
906 PM EST FRI FEB 18 2011

...HIGH WIND WARNING IN EFFECT FROM 5 AM TO 9 PM EST SATURDAY...

THE NATIONAL WEATHER SERVICE HAS ISSUED A HIGH WIND WARNING. IT IS
IN EFFECT FROM 500 AM UNTIL 900 PM SATURDAY. THE HIGH WIND WATCH
IS NO LONGER IN EFFECT.

* LOCATIONS...THE HIGH WIND WARNING IS IN EFFECT FOR NORTHEASTERN
  MARYLAND, DELAWARE, MUCH OF EASTERN PENNSYLVANIA AND MUCH OF NEW
  JERSEY.

* HAZARDS...GUSTY TO LOCALLY DAMAGING WINDS ARE EXPECTED ON
  SATURDAY. NUMEROUS TREE LIMBS AND UTILITY LINES WILL BE KNOCKED
  DOWN. A FEW WEAK TREES MAY ALSO FALL.

* WINDS...NORTHWEST SUSTAINED AT 20 TO 35 MPH WITH GUSTS UP TO 60
  MPH.

* TIMING...THE HIGHEST WIND SPEEDS AND GUSTS ARE EXPECTED TO OCCUR
  BETWEEN 10 AM AND 5 PM ON SATURDAY. HOWEVER, A BRIEF PERIOD OF
  GUSTS TO 40 OR 45 MPH IS ANTICIPATED THIS EVENING. 

* IMPACTS...WIDESPREAD POWER OUTAGES ARE POSSIBLE. DOWNED TREES
  AND TREE LIMBS COULD DAMAGE STRUCTURES AND VEHICLES. THE WINDS
  WILL MAKE IT DIFFICULT TO DRIVE HIGH PROFILE VEHICLES,
  ESPECIALLY ON BRIDGES AND OVERPASSES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS THAT A HAZARDOUS HIGH WIND EVENT IS
EXPECTED. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58
MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

&&

$$

IOVINO

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 18, 3:40 AM ESTFire Weather WatchPHIDelaware, Philadelphia12 hr
Feb 18, 3:11 AM ESTGale WarningPHI18 hr
Feb 18, 6:02 AM ESTCoastal Flood StatementPHIMiddlesex, Monmouth3 hr
Feb 18, 3:29 PM ESTLow Water AdvisoryPHI31 hr
Feb 18, 3:30 PM ESTRed Flag WarningPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 3 more29 hr

Nearby

High Wind Watches in New Jersey, 2011High Wind Watches in Pennsylvania, 2011High Wind Watches in Maryland, 2011Every high wind watch 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.