Alert archive / New Jersey / Winter Storm Warnings in 2010

Winter Storm Warning 4, NWS Philadelphia/Mount Holly

February 6, 20105 counties in New Jersey; 4 counties in Maryland; Kent County, Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this winter storm warning at Feb 6, 2010, 4:17 PM EST for 5 counties in New Jersey; 4 counties in Maryland; Kent County, Sussex County, Delaware. It was in force for 3 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 6, 2010, 4:17 PM EST (21:17 UTC)
Expired
Feb 6, 2010, 7:00 PM EST
In force
3 hr
Issued by
NWS Philadelphia/Mount Holly

Counties Kent County, DE, Sussex County, DE, Caroline County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD, Atlantic County, NJ, Burlington County, NJ, Cape May County, NJ, Cumberland County, NJ, Ocean County, NJ

The radar

The Dover AFB radar (KDOX), 44 km from the middle of the area, began a volume at 21:21 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 12:00Z, 9.3 hours before the alert went out and 142 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 12:00Z on 2010-02-06Temperature 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 12:00Z on 2010-02-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 601 square meters per square second.1939587897117136156175Sfc1 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
552 m above ground
0-6 km bulk shear
123 kt
0-1 km storm-relative helicity
601 m²/s²
0-3 km storm-relative helicity
1181 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.

793 
WWUS41 KPHI 062117
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
417 PM EST SAT FEB 6 2010

DEZ002>004-MDZ012-015-019-020-NJZ020>027-070000-
/O.CAN.KPHI.BZ.W.0001.000000T0000Z-100207T0000Z/
/O.NEW.KPHI.WS.W.0004.100206T2117Z-100207T0000Z/
KENT-INLAND SUSSEX-DELAWARE BEACHES-KENT MD-QUEEN ANNES-TALBOT-
CAROLINE-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-
INCLUDING THE CITIES OF...DOVER...GEORGETOWN...REHOBOTH BEACH...
CHESTERTOWN...CENTREVILLE...EASTON...DENTON...JACKSON...
MILLVILLE...HAMMONTON...CAPE MAY COURT HOUSE...OCEAN CITY...
ATLANTIC CITY...LONG BEACH ISLAND...WHARTON STATE FOREST
417 PM EST SAT FEB 6 2010

...WINTER STORM WARNING IN EFFECT UNTIL 7 PM EST THIS EVENING...
...BLIZZARD WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT UNTIL 7 PM EST THIS EVENING.
THE BLIZZARD WARNING HAS BEEN CANCELLED.

LIGHT TO MODERATE SNOW WITH EMBEDDED AREAS OF HEAVY SNOW NEAR THE
ATLANTIC COAST WAS OCCURRING ACROSS THE AREA LATE THIS AFTERNOON.
HEAVY SNOW WILL MOVE OFF THE COAST BY 600 PM EST...AND WIDESPREAD
BLIZZARD CONDITIONS NO LONGER ARE EXPECTED. 

STORM TOTAL SNOW ACCUMULATIONS OF 16 TO 28 INCHES ARE EXPECTED
ACROSS THE BULK OF THE AREA. A NORTHEAST TO NORTH WIND WITH GUSTS
OF 30 TO 35 MPH INLAND AND 35 TO 45 MPH ALONG THE COAST WILL 
CREATE EXTENSIVE BLOWING AND DRIFTING SNOW. THE WIND AND SNOW 
WILL CREATE VERY HAZARDOUS CONDITIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE
OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL
VERY HAZARDOUS OR IMPOSSIBLE.

$$

DEZ001-MDZ008-NJZ013-014-016>019-PAZ067-070-071-062230-
/O.CAN.KPHI.WS.W.0003.000000T0000Z-100207T0000Z/
NEW CASTLE-CECIL-WESTERN MONMOUTH-EASTERN MONMOUTH-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-CHESTER-DELAWARE-
PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...FREEHOLD...
SANDY HOOK...PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...
MOORESTOWN...MOUNT HOLLY...WEST CHESTER...MEDIA...PHILADELPHIA
417 PM EST SAT FEB 6 2010

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE
WINTER STORM WARNING. 

ADDITIONAL SNOW ACCUMULATIONS ARE NOT ANTICIPATED. SNOWFALL
AMOUNTS ARE AVAILABLE ON OUR WEBSITE AT... WWW.WEATHER.GOV/PHI.

PLEASE DRIVE CAREFULLY IF YOU VENTURE OUT TONIGHT. 

$$
2 follow-up statements
210 
WWUS41 KPHI 062200
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
500 PM EST SAT FEB 6 2010

MDZ012-015-019-020-062300-
/O.CAN.KPHI.WS.W.0004.000000T0000Z-100207T0000Z/
KENT MD-QUEEN ANNES-TALBOT-CAROLINE-
INCLUDING THE CITIES OF...CHESTERTOWN...CENTREVILLE...EASTON...
DENTON
500 PM EST SAT FEB 6 2010

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE
WINTER STORM WARNING. 

ADDITIONAL SNOW ACCUMULATIONS ARE NOT ANTICIPATED. SNOWFALL
AMOUNTS ARE AVAILABLE ON OUR WEBSITE AT... WWW.WEATHER.GOV/PHI.

PLEASE DRIVE CAREFULLY IF YOU VENTURE OUT TONIGHT. 

$$

DEZ002>004-NJZ020>027-070000-
/O.CON.KPHI.WS.W.0004.000000T0000Z-100207T0000Z/
KENT-INLAND SUSSEX-DELAWARE BEACHES-OCEAN-CUMBERLAND-ATLANTIC-
CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-
INCLUDING THE CITIES OF...DOVER...GEORGETOWN...REHOBOTH BEACH...
JACKSON...MILLVILLE...HAMMONTON...CAPE MAY COURT HOUSE...
OCEAN CITY...ATLANTIC CITY...LONG BEACH ISLAND...
WHARTON STATE FOREST
500 PM EST SAT FEB 6 2010

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING. 

LIGHT TO MODERATE SNOW WITH EMBEDDED AREAS OF HEAVY SNOW NEAR THE
ATLANTIC COAST WAS OCCURRING ACROSS THE AREA LATE THIS AFTERNOON.
HEAVY SNOW WILL MOVE OFF THE COAST BY 600 PM EST.

STORM TOTAL SNOW ACCUMULATIONS OF 16 TO 28 INCHES ARE EXPECTED
ACROSS THE BULK OF THE AREA. A NORTHEAST TO NORTH WIND WITH GUSTS
OF 30 TO 35 MPH INLAND AND 35 TO 45 MPH ALONG THE COAST WILL
CREATE EXTENSIVE BLOWING AND DRIFTING SNOW. THE WIND AND SNOW
WILL CREATE VERY HAZARDOUS CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE
OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL
VERY HAZARDOUS OR IMPOSSIBLE.

$$
708 
WWUS41 KPHI 070002
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
702 PM EST SAT FEB 6 2010

DEZ002>004-NJZ020>027-070115-
/O.EXP.KPHI.WS.W.0004.000000T0000Z-100207T0000Z/
KENT-INLAND SUSSEX-DELAWARE BEACHES-OCEAN-CUMBERLAND-ATLANTIC-
CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-
INCLUDING THE CITIES OF...DOVER...GEORGETOWN...REHOBOTH BEACH...
JACKSON...MILLVILLE...HAMMONTON...CAPE MAY COURT HOUSE...
OCEAN CITY...ATLANTIC CITY...LONG BEACH ISLAND...
WHARTON STATE FOREST
702 PM EST SAT FEB 6 2010

...WINTER STORM WARNING HAS EXPIRED...

THE WINTER STORM WARNING IS NO LONGER IN EFFECT. 

LIGHT SNOW WAS ENDING ACROSS FAR SOUTHEASTERN CAPE MAY COUNTY NEW
JERSEY AND SOUTHEASTERN SUSSEX COUNTY DELAWARE...AND WILL EXIT
THESE AREAS BY 8:00 PM. NO ADDITIONAL ACCUMULATIONS ARE EXPECTED.

$$

Nearby

Winter Storm Warnings in New Jersey, 2010Winter Storm Warnings in Maryland, 2010Winter Storm Warnings in Delaware, 2010Every winter storm warning in 2010

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.