Alert archive / New Jersey / Winter Storm Watches in 2014

Winter Storm Watch 9, NWS Philadelphia/Mount Holly

March 15, 20145 counties in New Jersey; Kent County, New Castle County, Sussex County, Delaware; 5 counties in Maryland

NWS Philadelphia/Mount Holly issued this winter storm watch at Mar 15, 2014, 3:02 PM EDT for 5 counties in New Jersey; Kent County, New Castle County, Sussex County, Delaware; 5 counties in Maryland. It took effect at Mar 16, 2014, 8:00 PM EDT. It was in force for .

The area

The counties it named.

The facts

Issued
Mar 15, 2014, 3:02 PM EDT (19:02 UTC)
In effect from
Mar 16, 2014, 8:00 PM EDT
Expired
Mar 16, 2014, 3:30 AM EDT
In force
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, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ

The radar

The Dover AFB radar (KDOX), 45 km from the middle of the area, began a volume at 18:52 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, 7.0 hours before the alert went out and 145 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 2014-03-15Temperature 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 2014-03-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 168 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
2107 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
168 m²/s²
0-3 km storm-relative helicity
149 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.

066 
WWUS41 KPHI 151902
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
302 PM EDT SAT MAR 15 2014
 
DEZ001>004-MDZ008-012-015-019-020-NJZ016-017-021>024-160915-
/O.NEW.KPHI.WS.A.0009.140317T0000Z-140317T1600Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-SALEM-GLOUCESTER-CUMBERLAND-ATLANTIC-
CAPE MAY-ATLANTIC COASTAL CAPE MAY-
INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN...
REHOBOTH BEACH...ELKTON...CHESTERTOWN...CENTREVILLE...EASTON...
DENTON...PENNSVILLE...GLASSBORO...MILLVILLE...HAMMONTON...
CAPE MAY COURT HOUSE...OCEAN CITY
302 PM EDT SAT MAR 15 2014

...WINTER STORM WATCH IN EFFECT FROM SUNDAY EVENING THROUGH
MONDAY MORNING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM SUNDAY EVENING THROUGH
MONDAY MORNING.

* LOCATIONS...ALL OF DELAWARE, THE MARYLAND EASTERN SHORE AND
  GLOUCESTER, SALEM, CUMBERLAND, ATLANTIC AND CAPE MAY COUNTIES
  IN NEW JERSEY.

* HAZARD TYPES...SNOW.

* ACCUMULATIONS...3 TO 6 INCHES OF SNOW. HIGHEST ACCUMULATIONS
  EXPECTED IN CENTRAL AND SOUTHERN DELMARVA AND SOUTHEAST NEW
  JERSEY.

* TIMING...PRECIPITATION SHOULD BEGIN SUNDAY EVENING AND MAY START
  AS RAIN. MOST PRECIPITATION WILL CHANGE TO SNOW BY MIDNIGHT. THE
  HEAVIEST SNOW SHOULD FALL OVERNIGHT SUNDAY NIGHT. SNOW SHOULD
  START TAPERING OFF MONDAY MORNING AND THE ACCUMULATING SNOW IS
  EXPECTED TO BE OVER ON MONDAY AFTERNOON.

* IMPACTS...SNOW WILL MAKE FOR DIFFICULT DRIVING OVERNIGHT SUNDAY
  AND IS LIKELY TO GREATLY AFFECT THE MONDAY MORNING COMMUTE.
  TEMPERATURES WILL BE STARTING ABOVE FREEZING BEFORE IT SNOWS, SO
  ICING OF UNTREATED ROADWAYS AND WALKWAYS IS LIKELY AS
  TEMPERATURES FALL AND THE SNOW STARTS ACCUMULATING.

* WINDS...NORTHEAST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. SOME
  GUSTS UP TO 40 MPH ALONG THE IMMEDIATE ATLANTIC COAST.

* TEMPERATURES...IN THE MID 20S TO LOWER 30S WHILE ITS SNOWING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST
FORECASTS.

&&

$$

GIGI/NIERENBERG
1 follow-up statement
723 
WWUS41 KPHI 160730
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
330 AM EDT SUN MAR 16 2014

DEZ002>004-MDZ015-019-020-NJZ023-024-162100-
/O.UPG.KPHI.WS.A.0009.140317T0000Z-140317T1600Z/
/O.NEW.KPHI.WS.W.0008.140317T0000Z-140317T1600Z/
KENT-INLAND SUSSEX-DELAWARE BEACHES-QUEEN ANNES-TALBOT-CAROLINE-
CAPE MAY-ATLANTIC COASTAL CAPE MAY-
INCLUDING THE CITIES OF...DOVER...GEORGETOWN...REHOBOTH BEACH...
CENTREVILLE...EASTON...DENTON...CAPE MAY COURT HOUSE...OCEAN CITY
330 AM EDT SUN MAR 16 2014

...WINTER STORM WARNING IN EFFECT FROM 8 PM THIS EVENING TO NOON
EDT MONDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER
STORM WARNING FOR SNOW. IT IS IN EFFECT FROM 800 PM THIS EVENING
UNTIL NOON ON MONDAY.

* LOCATIONS...THE MARYLAND COUNTIES OF QUEEN ANNE'S, TALBOT AND
  CAROLINE, THE DELAWARE COUNTIES OF KENT AND SUSSEX, AND CAPE MAY
  COUNTY IN NEW JERSEY.

* HAZARD TYPE...SNOW.

* ACCUMULATIONS...GENERALLY 3 TO 5 INCHES OF SNOW.

* TIMING...LIGHT RAIN IS FORECAST TO MOVE INTO THE REGION FROM
  THE SOUTHWEST LATE IN THE DAY. THE RAIN IS EXPECTED TO CHANGE TO
  SNOW THIS EVENING. THE SNOW IS ANTICIPATED TO BECOME MODERATE TO
  HEAVY FOR A TIME OVERNIGHT BEFORE ENDING ON MONDAY MORNING.

* WINDS...NORTHEAST AT 10 TO 20 MPH WITH GUSTS UP TO 25 OR 30
  MPH.

* VISIBILITY...ONE HALF MILE OR LESS AT TIMES.

* TEMPERATURES...RANGING FROM THE UPPER 20S TO THE MIDDLE 30S
  DURING MUCH OF THE SNOW EVENT.

* IMPACTS...THE SNOW WILL CREATE HAZARDOUS DRIVING CONDITIONS
  OVERNIGHT AND ESPECIALLY DURING THE MONDAY MORNING COMMUTE.
  ROADS AND WALKWAYS WILL BECOME SNOW COVERED AND SLIPPERY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS WINTER STORM WARNING MEANS THAT SIGNIFICANT AMOUNTS OF SNOW
ARE EXPECTED. THE SNOW WILL MAKE TRAVEL VERY HAZARDOUS.

&&

$$

DEZ001-MDZ008-012-NJZ016-017-021-022-162100-
/O.UPG.KPHI.WS.A.0009.140317T0000Z-140317T1600Z/
/O.NEW.KPHI.WW.Y.0015.140317T0000Z-140317T1600Z/
NEW CASTLE-CECIL-KENT MD-SALEM-GLOUCESTER-CUMBERLAND-ATLANTIC-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...CHESTERTOWN...
PENNSVILLE...GLASSBORO...MILLVILLE...HAMMONTON
330 AM EDT SUN MAR 16 2014

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO
NOON EDT MONDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW. IT IS IN EFFECT FROM 800 PM THIS
EVENING UNTIL NOON ON MONDAY.

* LOCATIONS...CECIL COUNTY AND KENT COUNTY IN MARYLAND, NEW
  CASTLE COUNTY IN DELAWARE, AND THE NEW JERSEY COUNTIES OF SALEM,
  CUMBERLAND, ATLANTIC, GLOUCESTER, CAMDEN, SOUTHEASTERN
  BURLINGTON AND OCEAN.

* HAZARD TYPE...SNOW.

* ACCUMULATIONS...GENERALLY 1 TO 3 INCHES OF SNOW. SOME SPOTS IN
  KENT COUNTY IN MARYLAND, SOUTHERN NEW CASTLE COUNTY IN DELAWARE
  AND CUMBERLAND COUNTY AND ATLANTIC COUNTY IN NEW JERSEY MAY
  RECEIVE CLOSE TO 4 INCHES OF SNOW.

* TIMING...LIGHT RAIN AND SNOW IS FORECAST TO MOVE INTO THE
  REGION FROM THE SOUTHWEST LATE IN THE DAY. THE MIXED
  PRECIPITATION IS EXPECTED TO CHANGE TO ALL SNOW THIS EVENING.
  THE SNOW IS ANTICIPATED TO CONTINUE OVERNIGHT BEFORE ENDING ON
  MONDAY MORNING.

* WINDS...NORTHEAST AT 10 TO 20 MPH WITH GUSTS UP TO 25 OR 30
  MPH.

* VISIBILITY...ONE HALF MILE OR LESS AT TIMES.

* TEMPERATURES...RANGING FROM THE MIDDLE 20S TO THE LOWER 30S
  DURING MUCH OF THE SNOW EVENT.

* IMPACTS...THE SNOW WILL CREATE HAZARDOUS DRIVING CONDITIONS
  OVERNIGHT AND ESPECIALLY DURING THE MONDAY MORNING COMMUTE.
  ROADS AND WALKWAYS WILL BECOME SNOW COVERED AND SLIPPERY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS WINTER WEATHER ADVISORY MEANS THAT SNOW WILL CAUSE TRAVEL
DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED
VISIBILITY. USE EXTRA CAUTION IF DRIVING OVERNIGHT OR ON MONDAY
MORNING.

&&

$$

NJZ018-020-025>027-162100-
/O.NEW.KPHI.WW.Y.0015.140317T0000Z-140317T1600Z/
CAMDEN-OCEAN-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-
INCLUDING THE CITIES OF...CAMDEN...CHERRY HILL...JACKSON...
ATLANTIC CITY...LONG BEACH ISLAND...WHARTON STATE FOREST
330 AM EDT SUN MAR 16 2014

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO
NOON EDT MONDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW. IT IS IN EFFECT FROM 800 PM THIS
EVENING UNTIL NOON ON MONDAY.

* LOCATIONS...CECIL COUNTY AND KENT COUNTY IN MARYLAND, NEW
  CASTLE COUNTY IN DELAWARE, AND THE NEW JERSEY COUNTIES OF SALEM,
  CUMBERLAND, ATLANTIC, GLOUCESTER, CAMDEN, SOUTHEASTERN
  BURLINGTON AND OCEAN.

* HAZARD TYPE...SNOW.

* ACCUMULATIONS...GENERALLY 1 TO 3 INCHES OF SNOW. SOME SPOTS IN
  KENT COUNTY IN MARYLAND, SOUTHERN NEW CASTLE COUNTY IN DELAWARE
  AND CUMBERLAND COUNTY AND ATLANTIC COUNTY IN NEW JERSEY MAY
  RECEIVE CLOSE TO 4 INCHES OF SNOW.

* TIMING...LIGHT RAIN AND SNOW IS FORECAST TO MOVE INTO THE
  REGION FROM THE SOUTHWEST LATE IN THE DAY. THE MIXED
  PRECIPITATION IS EXPECTED TO CHANGE TO ALL SNOW THIS EVENING.
  THE SNOW IS ANTICIPATED TO CONTINUE OVERNIGHT BEFORE ENDING ON
  MONDAY MORNING.

* WINDS...NORTHEAST AT 10 TO 20 MPH WITH GUSTS UP TO 25 OR 30
  MPH.

* VISIBILITY...ONE HALF MILE OR LESS AT TIMES.

* TEMPERATURES...RANGING FROM THE MIDDLE 20S TO THE LOWER 30S
  DURING MUCH OF THE SNOW EVENT.

* IMPACTS...THE SNOW WILL CREATE HAZARDOUS DRIVING CONDITIONS
  OVERNIGHT AND ESPECIALLY DURING THE MONDAY MORNING COMMUTE.
  ROADS AND WALKWAYS WILL BECOME SNOW COVERED AND SLIPPERY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS WINTER WEATHER ADVISORY MEANS THAT SNOW WILL CAUSE TRAVEL
DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED
VISIBILITY. USE EXTRA CAUTION IF DRIVING OVERNIGHT OR ON MONDAY
MORNING.

&&

$$

IOVINO

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 15, 3:06 PM EDTGale WatchPHI6 hr

Nearby

Winter Storm Watches in New Jersey, 2014Winter Storm Watches in Maryland, 2014Winter Storm Watches in Delaware, 2014Every winter storm watch in 2014

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.