Alert archive / New Jersey / Wind Advisories in 2012

Wind Advisory 8, NWS Philadelphia/Mount Holly

April 22, 201211 counties in New Jersey; Kent County, New Castle County, Sussex County, Delaware; Delaware County, Philadelphia County, Pennsylvania

NWS Philadelphia/Mount Holly issued this wind advisory at Apr 22, 2012, 3:45 AM EDT for 11 counties in New Jersey; Kent County, New Castle County, Sussex County, Delaware; Delaware County, Philadelphia County, Pennsylvania. It took effect at Apr 22, 2012, 4:00 PM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Apr 22, 2012, 3:45 AM EDT (07:45 UTC)
In effect from
Apr 22, 2012, 4:00 PM EDT
Expired
Apr 23, 2012, 12:02 AM EDT
In force
8 hr
Issued by
NWS Philadelphia/Mount Holly

Counties Kent County, DE, New Castle County, DE, Sussex County, DE, Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ, Salem County, NJ, Delaware County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 55 km from the middle of the area, began a volume at 07:45 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

Wallops Is Stn, VA (KWAL), launched 00:00Z, 7.8 hours before the alert went out and 199 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, Wallops Is Stn, VA at 00:00Z on 2012-04-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 22 joules per kilogram.LCLLFCEL10008507005003002001001 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, Wallops Is Stn, VA at 00:00Z on 2012-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 square meters per square second.19395878Sfc1 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
22 J/kg
Mixed-layer CIN
-185 J/kg
Mixed-layer LCL
1458 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
124 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

269 
WWUS71 KPHI 220745
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
345 AM EDT SUN APR 22 2012

DEZ001>004-NJZ012>027-222115-
/O.NEW.KPHI.WI.Y.0008.120422T2000Z-120423T0800Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-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-
INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN...
REHOBOTH BEACH...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
345 AM EDT SUN APR 22 2012

...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM EDT
MONDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM
EDT MONDAY.

* WINDS...EAST 20 TO 30 MPH WITH GUSTS UP TO 45 MPH.

* TIMING...WINDS INCREASING THROUGH THE DAY WITH THE STRONGEST
  WINDS LATE THIS AFTERNOON INTO THE EVENING. 

* IMPACTS...STRONG WINDS MAY TAKE DOWN SOME TREE LIMBS OR POWER
  LINES AND PRODUCE SCATTERED POWER OUTAGES. TRAVEL MAY BE
  DIFFICULT FOR HIGH PROFILE VEHICLES, ESPECIALLY ON BRIDGES AND
  OTHER ELEVATED ROADWAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOTORISTS SHOULD USE EXTRA CAUTION...ESPECIALLY THOSE IN HIGH
PROFILE VEHICLES. LIGHT-WEIGHT OUTDOOR OBJECTS SUCH AS PATIO
FURNITURE AND GARBAGE CANS SHOULD BE SECURED.

&&

$$
2 follow-up statements
702 
WWUS71 KPHI 221930
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
330 PM EDT SUN APR 22 2012

PAZ070-071-230800-
/O.EXA.KPHI.WI.Y.0008.120422T2000Z-120423T0800Z/
DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...MEDIA...PHILADELPHIA
330 PM EDT SUN APR 22 2012

...WIND ADVISORY IN EFFECT UNTIL 4 AM EDT MONDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 4 AM EDT MONDAY.

* WINDS...NORTHEAST 20 TO 30 MPH WITH GUSTS UP TO 45 MPH.

* TIMING...WINDS WILL RAMP UP LATE THIS AFTERNOON AND EARLY THIS
  EVENING...WHEN THE HIGHEST GUSTS ARE EXPECTED. WINDS WILL BEGIN
  TO DROP OFF LATER TONIGHT.

* IMPACTS...STRONG WINDS MAY TAKE DOWN SOME TREE LIMBS OR POWER 
  LINES AND PRODUCE SCATTERED POWER OUTAGES. TRAVEL MAY BE 
  DIFFICULT FOR HIGH PROFILE VEHICLES... ESPECIALLY ON BRIDGES 
  AND OTHER ELEVATED ROADWAYS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOTORISTS SHOULD USE EXTRA CAUTION...ESPECIALLY THOSE IN HIGH
PROFILE VEHICLES. LIGHT-WEIGHT OUTDOOR OBJECTS SUCH AS PATIO
FURNITURE AND GARBAGE CANS SHOULD BE SECURED.

&&

$$

DEZ001>004-NJZ012>027-230800-
/O.CON.KPHI.WI.Y.0008.120422T2000Z-120423T0800Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-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-
INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN...
REHOBOTH BEACH...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
330 PM EDT SUN APR 22 2012

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM EDT MONDAY...

* WINDS...NORTHEAST 20 TO 30 MPH WITH GUSTS UP TO 45 MPH.

* TIMING...WINDS WILL RAMP UP LATE THIS AFTERNOON AND EARLY THIS
  EVENING...WHEN THE HIGHEST GUSTS ARE EXPECTED. WINDS WILL BEGIN
  TO DROP OFF LATER TONIGHT.

* IMPACTS...STRONG WINDS MAY TAKE DOWN SOME TREE LIMBS OR POWER 
  LINES AND PRODUCE SCATTERED POWER OUTAGES. TRAVEL MAY BE 
  DIFFICULT FOR HIGH PROFILE VEHICLES... ESPECIALLY ON BRIDGES 
  AND OTHER ELEVATED ROADWAYS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOTORISTS SHOULD USE EXTRA CAUTION...ESPECIALLY THOSE IN HIGH
PROFILE VEHICLES. LIGHT-WEIGHT OUTDOOR OBJECTS SUCH AS PATIO
FURNITURE AND GARBAGE CANS SHOULD BE SECURED.

&&

$$
531 
WWUS71 KPHI 230402
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1202 AM EDT MON APR 23 2012
 
DEZ001>004-NJZ012>027-PAZ070-071-230515-
/O.CAN.KPHI.WI.Y.0008.000000T0000Z-120423T0800Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-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-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN...
REHOBOTH BEACH...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...MEDIA...PHILADELPHIA
1202 AM EDT MON APR 23 2012

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE
WIND ADVISORY.

THE LOW PRESSURE SYSTEM THAT HELPED TRIGGER STRONGER WINDS ALONG
THE COAST LATE SUNDAY AFTERNOON AND EVENING WAS NOW MOVING THROUGH
NEW JERSEY THUS ENDING THE LIKELIHOOD OF WIND GUSTS REACHING
AROUND 45 MPH. SOME WIND GUSTS OF BETWEEN 30 AND 40 MPH SHOULD
CONTINUE OVER THE NEXT COUPLE OF HOURS MAINLY ALONG NORTH COASTAL
NEW JERSEY. 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 8:41 PM EDTSpecial Weather StatementPHICamden, Cumberland, Gloucester, Hunterdon, Mercer, Middlesex and 5 more109 min
Apr 21, 9:38 PM EDTSevere Thunderstorm WarningPHIBurlington, Hunterdon, Mercer, Middlesex, Monmouth, Morris and 2 more67 min
Apr 22, 4:14 AM EDTCoastal Flood AdvisoryPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 4 more20 hr
Apr 21, 8:45 PM EDTSevere Thunderstorm WarningPHIBucks, Chester, Delaware, Montgomery, Philadelphia30 min

Nearby

Wind Advisories in New Jersey, 2012Wind Advisories in Delaware, 2012Wind Advisories in Pennsylvania, 2012Every wind advisory in 2012

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.