Alert archive / New Jersey / Wind Advisories in 2009

Wind Advisory 3, NWS Philadelphia/Mount Holly

March 9, 20094 states

NWS Philadelphia/Mount Holly issued this wind advisory at Mar 9, 2009, 4:12 AM EDT for 4 states. It took effect at Mar 9, 2009, 10:00 AM EDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Mar 9, 2009, 4:12 AM EDT (08:12 UTC)
In effect from
Mar 9, 2009, 10:00 AM EDT
Expired
Mar 9, 2009, 3:52 PM EDT
In force
6 hr
Issued by
NWS Philadelphia/Mount Holly

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, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ, Berks County, PA, Delaware County, PA, Philadelphia County, PA

The radar

The Dover AFB radar (KDOX), 66 km from the middle of the area, began a volume at 08:12 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, 8.2 hours before the alert went out and 166 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 2009-03-09Temperature 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, Wallops Is Stn, VA at 00:00Z on 2009-03-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 square meters per square second.1939587897117Sfc1 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
1649 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
207 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WWUS71 KPHI 090812
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
412 AM EDT MON MAR 9 2009

DEZ001>004-MDZ008-012-015-019-020-NJZ016>018-021>025-PAZ060-067-
068-070-071-092000-
/O.NEW.KPHI.WI.Y.0003.090309T1400Z-090309T2000Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-SALEM-GLOUCESTER-CAMDEN-CUMBERLAND-
ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-
BERKS-CHESTER-MONTGOMERY-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN...
REHOBOTH BEACH...ELKTON...CHESTERTOWN...CENTREVILLE...EASTON...
DENTON...PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...
MILLVILLE...HAMMONTON...CAPE MAY COURT HOUSE...OCEAN CITY...
ATLANTIC CITY...READING...WEST CHESTER...NORRISTOWN...MEDIA...
PHILADELPHIA
412 AM EDT MON MAR 9 2009

...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 4 PM EDT
THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 4 PM EDT
THIS AFTERNOON. 

A STRENGTHENING GRADIENT BETWEEN LOW PRESSURE DEVELOPING OVER THE
DELMARVA AND HIGH PRESSURE BUILDING IN FROM THE WEST WILL CAUSE
WINDS TO SHIFT TO THE WEST...THEN GUST TO AROUND 45 MPH LATE THIS
MORNING INTO EARLY THIS AFTERNOON AS BOTH SYSTEMS MOVE EAST.

A WIND ADVISORY MEANS THAT WINDS GUSTS OF AROUND 45 MPH ARE
EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...
ESPECIALLY FOR HIGH PROFILE VEHICLES. BE CAREFUL WHEN DRIVING. 
TREE LIMBS MAY BE FELLED. LIGHT-WEIGHT OUTDOOR OBJECTS...INCLUDING
REFUSE CONTAINERS...MAY BE BLOWN ABOUT BY THE WIND.

$$

MPD
1 follow-up statement
000 
WWUS71 KPHI 091952
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
352 PM EDT MON MAR 9 2009

DEZ001>004-MDZ008-012-015-019-020-NJZ016>018-021>025-PAZ060-067-
068-070-071-092100-
/O.CAN.KPHI.WI.Y.0003.000000T0000Z-090309T2000Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-SALEM-GLOUCESTER-CAMDEN-CUMBERLAND-
ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-
BERKS-CHESTER-MONTGOMERY-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN...
REHOBOTH BEACH...ELKTON...CHESTERTOWN...CENTREVILLE...EASTON...
DENTON...PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...
MILLVILLE...HAMMONTON...CAPE MAY COURT HOUSE...OCEAN CITY...
ATLANTIC CITY...READING...WEST CHESTER...NORRISTOWN...MEDIA...
PHILADELPHIA
352 PM EDT MON MAR 9 2009

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE HAS CANCELLED THE WIND ADVISORY.

WIND SPEEDS AND GUSTS WILL CONTINUE TO DIMINISH INTO THIS EVENING.
THERE IS NO LONGER THE POTENTIAL FOR WIND GUSTS IN EXCESS OF 45
MPH IN OUR REGION.

$$

IOVINO

Nearby

Wind Advisories in New Jersey, 2009Wind Advisories in Maryland, 2009Wind Advisories in Delaware, 2009Every wind advisory 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.