Alert archive / New Jersey / High Wind Watches in 2018

High Wind Watch 1, NWS Philadelphia/Mount Holly

February 28, 20184 states

NWS Philadelphia/Mount Holly issued this high wind watch at Feb 28, 2018, 3:12 PM EST for 4 states. It took effect at Mar 2, 2018, 7:00 AM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Feb 28, 2018, 3:12 PM EST (20:12 UTC)
In effect from
Mar 2, 2018, 7:00 AM EST
Expired
Mar 1, 2018, 3:30 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, Warren County, NJ, Berks County, PA, Bucks County, PA, Chester County, PA, Delaware County, PA, Lehigh County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 69 km from the middle of the area, began a volume at 20:12 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 8.2 hours before the alert went out and 214 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, Washington/Dulle, VA at 12:00Z on 2018-02-28Temperature 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, Washington/Dulle, VA at 12:00Z on 2018-02-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 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
1860 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

535 
WWUS71 KPHI 282012
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
312 PM EST Wed Feb 28 2018

...POTENTIALLY DAMAGING WINDS ARE EXPECTED FRIDAY AND FRIDAY 
NIGHT...

.Low pressure will intensify over the Northeast coast on Friday. 
This will bring strong to potentially damaging northwest winds to 
the region Friday and Friday night.

DEZ001>004-MDZ008-012-015-019-020-NJZ012>014-016>027-011100-
/O.NEW.KPHI.HW.A.0001.180302T1200Z-180303T1200Z/
New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD-
Queen Annes-Talbot-Caroline-Middlesex-Western Monmouth-
Eastern Monmouth-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, Elkton, Chestertown, Centreville, Easton, Denton,
New Brunswick, Freehold, Sandy Hook, Pennsville, Glassboro, 
Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville,
Hammonton, Cape May Court House, Ocean City, Atlantic City, 
Long Beach Island, and Wharton State Forest
312 PM EST Wed Feb 28 2018

...HIGH WIND WATCH IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY
MORNING...

The National Weather Service in Mount Holly has issued a High
Wind Watch, which is in effect from Friday morning through
Saturday morning.

* WINDS...Northwest 25 to 35 mph with 50 to 60 mph gusts.

* TIMING...Strong winds develop over the Delmarva Friday morning,
  and then increase over southern and coastal New Jersey through
  the day. The strongest winds are expected Friday evening, and
  winds will gradually diminish through Friday night.

* IMPACTS...Strong winds may blow down limbs, trees, and power 
  lines. Scattered power outages are expected.

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.

&&

$$

MPS
3 follow-up statements
114 
WWUS71 KPHI 010840
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
340 AM EST Thu Mar 1 2018

...POTENTIALLY DAMAGING WINDS ARE EXPECTED FRIDAY AND FRIDAY
NIGHT...

.Low pressure will intensify near the Northeast coast on Friday. 
This will bring strong to potentially damaging northwest winds to 
the region Friday and Friday night.

NJZ007>010-015-PAZ060>062-070-071-101>106-012100-
/O.EXA.KPHI.HW.A.0001.180302T1200Z-180303T1200Z/
Warren-Morris-Hunterdon-Somerset-Mercer-Berks-Lehigh-Northampton-
Delaware-Philadelphia-Western Chester-Eastern Chester-
Western Montgomery-Eastern Montgomery-Upper Bucks-Lower Bucks-
Including the cities of Washington, Morristown, Flemington, 
Somerville, Trenton, Reading, Allentown, Bethlehem, Easton, 
Media, Philadelphia, Honey Brook, Oxford, West Chester, 
Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, 
Chalfont, Perkasie, Morrisville, and Doylestown
340 AM EST Thu Mar 1 2018

...HIGH WIND WATCH IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY
MORNING...

The National Weather Service in Mount Holly has issued a High
Wind Watch, which is in effect from Friday morning through
Saturday morning.

* WINDS...Northwest 20 to 30 mph with gusts up to 60 mph.

* TIMING...Strong winds will develop during the morning hours
  Friday from south to north across the watch area. Winds will
  peak during the late morning through the early evening hours
  before diminishing somewhat late Friday night.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Numerous power outages are possible. Additionally, rain may 
  change to snow Friday and Friday evening, especially northwest 
  of Philadelphia. The snow combined with the wind may produce 
  localized whiteout conditions. Travel may become very difficult 
  as a result.

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.

&&

$$

DEZ001>004-MDZ008-012-015-019-020-NJZ012>014-016>027-012100-
/O.CON.KPHI.HW.A.0001.180302T1200Z-180303T1200Z/
New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD-
Queen Annes-Talbot-Caroline-Middlesex-Western Monmouth-
Eastern Monmouth-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, Elkton, Chestertown, Centreville, Easton, Denton,
New Brunswick, Freehold, Sandy Hook, Pennsville, Glassboro, 
Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville,
Hammonton, Cape May Court House, Ocean City, Atlantic City, 
Long Beach Island, and Wharton State Forest
340 AM EST Thu Mar 1 2018

...HIGH WIND WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH
SATURDAY MORNING...

* WINDS...Northwest 25 to 35 mph with gusts up to 65 mph.

* TIMING...Strong winds develop over the Delmarva Peninsula Friday
  morning, and then increase over southern and coastal New Jersey
  through the day. The strongest winds are expected late Friday
  morning through Friday evening. Winds will gradually diminish
  late Friday night.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Widespread power outages are possible. Travel will be 
  difficult, especially for high profile vehicles.

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.

&&

$$

CMS
679 
WWUS71 KPHI 011644
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
1144 AM EST Thu Mar 1 2018

DEZ002>004-MDZ012-015-019-020-020445-
/O.UPG.KPHI.HW.A.0001.180302T1200Z-180303T1200Z/
/O.NEW.KPHI.HW.W.0001.180302T0800Z-180303T1100Z/
Kent-Inland Sussex-Delaware Beaches-Kent MD-Queen Annes-Talbot-
Caroline-
Including the cities of Dover, Georgetown, Rehoboth Beach, 
Chestertown, Centreville, Easton, and Denton
1144 AM EST Thu Mar 1 2018

...HIGH WIND WARNING IN EFFECT FROM 3 AM FRIDAY TO 6 AM EST
SATURDAY...

The National Weather Service in Mount Holly has issued a High
Wind Warning, which is in effect from 3 AM Friday to 6 AM EST
Saturday. The High Wind Watch is no longer in effect.

* LOCATION...Central and southern Delaware and adjacent areas of
  eastern Maryland.

* WINDS...Northwest 25 to 40 mph with gusts up to 60 mph.

* TIMING...Strong winds with gusts of 40 to 50 mph develop late
  tonight and Friday morning. Peak gusts to 60 mph are most likely
  to occur during the afternoon and evening hours on Friday. Winds
  will gradually diminish late Friday night.

* IMPACTS...Saturated soils will enhance the potential for high
  winds to blow down trees and power lines. Scattered power
  outages are likely. Travel will be difficult, especially for 
  high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

DEZ001-MDZ008-NJZ016>018-021>025-PAZ060-070-071-101>104-020445-
/O.UPG.KPHI.HW.A.0001.180302T1200Z-180303T1200Z/
/O.NEW.KPHI.HW.W.0001.180302T1600Z-180303T1100Z/
New Castle-Cecil-Salem-Gloucester-Camden-Cumberland-Atlantic-
Cape May-Atlantic Coastal Cape May-Coastal Atlantic-Berks-
Delaware-Philadelphia-Western Chester-Eastern Chester-
Western Montgomery-Eastern Montgomery-
Including the cities of Wilmington, Elkton, Pennsville, 
Glassboro, Camden, Cherry Hill, Millville, Hammonton, 
Cape May Court House, Ocean City, Atlantic City, Reading, Media, 
Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, 
Collegeville, Pottstown, Norristown, and Lansdale
1144 AM EST Thu Mar 1 2018

...HIGH WIND WARNING IN EFFECT FROM 11 AM FRIDAY TO 6 AM EST
SATURDAY...

The National Weather Service in Mount Holly has issued a High
Wind Warning, which is in effect from 11 AM Friday to 6 AM EST
Saturday. The High Wind Watch is no longer in effect.

* LOCATION...Northeastern Maryland, northern Delaware,
  southeastern Pennsylvania and southern New Jersey.

* WINDS...Northwest 25 to 40 mph with gusts up to 60 mph.

* TIMING...Strong winds with gusts of 40 to 50 mph develop toward
  midday Friday. Peak gusts to 60 mph are most likely to occur 
  from mid afternoon to late evening Friday. Winds will gradually 
  diminish late Friday night.

* IMPACTS...Saturated soils will enhance the potential for high
  winds to blow down trees and power lines. Scattered power
  outages are likely. Travel will be difficult, especially for
  high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

NJZ007>010-012>015-019-020-026-027-PAZ061-062-105-106-020445-
/O.EXT.KPHI.HW.A.0001.180302T1600Z-180303T1100Z/
Warren-Morris-Hunterdon-Somerset-Middlesex-Western Monmouth-
Eastern Monmouth-Mercer-Northwestern Burlington-Ocean-
Coastal Ocean-Southeastern Burlington-Lehigh-Northampton-
Upper Bucks-Lower Bucks-
Including the cities of Washington, Morristown, Flemington, 
Somerville, New Brunswick, Freehold, Sandy Hook, Trenton, 
Moorestown, Mount Holly, Jackson, Long Beach Island, 
Wharton State Forest, Allentown, Bethlehem, Easton, Chalfont, 
Perkasie, Morrisville, and Doylestown
1144 AM EST Thu Mar 1 2018

...HIGH WIND WATCH NOW IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...

* WINDS...Northwest 20 to 30 mph with the potential for gusts of
  50 to 60 mph.

* TIMING...Strong winds with gusts of 40 to 50 mph develop toward
  midday Friday. The potential for peak gusts up to 60 mph are
  possible from mid afternoon to late evening Friday. Winds will 
  gradually diminish late Friday night.

* IMPACTS...Saturated soils will enhance the potential for high
  winds to blow down trees and power lines. Scattered power
  outages are possible. Travel will be difficult, especially for
  high profile vehicles.

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.

&&

$$
JRK
878 
WWUS71 KPHI 012030
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
330 PM EST Thu Mar 1 2018


NJZ007-008-PAZ062-012130-
/O.CAN.KPHI.HW.A.0001.180302T1600Z-180303T1100Z/
Warren-Morris-Northampton-
Including the cities of Washington, Morristown, Bethlehem, 
and Easton
330 PM EST Thu Mar 1 2018

...HIGH WIND WATCH IS CANCELLED...

The National Weather Service in Mount Holly has cancelled the
High Wind Watch.

The wind hazards for this region will be addressed in our Winter 
weather products. 

$$

NJZ012>015-019-020-026-027-PAZ061-105-106-021000-
/O.UPG.KPHI.HW.A.0001.180302T1600Z-180303T1100Z/
/O.EXA.KPHI.HW.W.0001.180302T1600Z-180303T1100Z/
Middlesex-Western Monmouth-Eastern Monmouth-Mercer-
Northwestern Burlington-Ocean-Coastal Ocean-
Southeastern Burlington-Lehigh-Upper Bucks-Lower Bucks-
Including the cities of New Brunswick, Freehold, Sandy Hook, 
Trenton, Moorestown, Mount Holly, Jackson, Long Beach Island, 
Wharton State Forest, Allentown, Chalfont, Perkasie, Morrisville,
and Doylestown
330 PM EST Thu Mar 1 2018

...HIGH WIND WARNING IN EFFECT FROM 11 AM FRIDAY TO 6 AM EST
SATURDAY...

The National Weather Service in Mount Holly has issued a High
Wind Warning, which is in effect from 11 AM Friday to 6 AM EST
Saturday. The High Wind Watch is no longer in effect.

* WINDS...Northwest 20 to 30 mph with gusts up to 60 mph.

* TIMING...Strong winds with gusts of 40 to 50 mph develop toward
  midday Friday. The potential for peak gusts up to 60 mph are
  possible from mid afternoon to late evening Friday. Winds will
  gradually diminish Saturday morning.

* IMPACTS...Strong winds may blow down limbs, trees, and power
  lines. Scattered power outages are expected. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

DEZ002>004-MDZ012-015-019-020-021000-
/O.CON.KPHI.HW.W.0001.180302T0800Z-180303T1100Z/
Kent-Inland Sussex-Delaware Beaches-Kent MD-Queen Annes-Talbot-
Caroline-
Including the cities of Dover, Georgetown, Rehoboth Beach, 
Chestertown, Centreville, Easton, and Denton
330 PM EST Thu Mar 1 2018

...HIGH WIND WARNING REMAINS IN EFFECT FROM 3 AM FRIDAY TO 6 AM
EST SATURDAY...

* LOCATION...Central and southern Delaware and adjacent areas of 
  eastern Maryland.

* WINDS...Northwest 25 to 35 mph with gusts up to 60 mph.

* TIMING...Strong winds with gusts of 40 to 50 mph develop late
  tonight and Friday morning. Peak gusts to 60 mph are most likely
  to occur during the afternoon and evening hours on Friday. Winds
  will gradually diminish Saturday morning.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be very
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

DEZ001-MDZ008-NJZ016>018-021>025-PAZ060-070-071-101>104-021000-
/O.CON.KPHI.HW.W.0001.180302T1600Z-180303T1100Z/
New Castle-Cecil-Salem-Gloucester-Camden-Cumberland-Atlantic-
Cape May-Atlantic Coastal Cape May-Coastal Atlantic-Berks-
Delaware-Philadelphia-Western Chester-Eastern Chester-
Western Montgomery-Eastern Montgomery-
Including the cities of Wilmington, Elkton, Pennsville, 
Glassboro, Camden, Cherry Hill, Millville, Hammonton, 
Cape May Court House, Ocean City, Atlantic City, Reading, Media, 
Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, 
Collegeville, Pottstown, Norristown, and Lansdale
330 PM EST Thu Mar 1 2018

...HIGH WIND WARNING REMAINS IN EFFECT FROM 11 AM FRIDAY TO 6 AM
EST SATURDAY...

* LOCATION...Northeastern Maryland, northern Delaware, 
  southeastern Pennsylvania and southern New Jersey.

* WINDS...Northwest 25 to 35 mph with gusts up to 60 mph.

* TIMING...Strong winds with gusts of 40 to 50 mph develop toward
  midday Friday. Peak gusts to 60 mph are most likely to occur
  from mid afternoon to late evening Friday. Winds will gradually
  diminish Saturday morning.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Widespread power outages are expected. Travel will be difficult,
  especially for high profile vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

NJZ009-010-021000-
/O.UPG.KPHI.HW.A.0001.180302T1600Z-180303T1100Z/
/O.NEW.KPHI.WI.Y.0003.180302T1600Z-180303T1100Z/
Hunterdon-Somerset-
Including the cities of Flemington and Somerville
330 PM EST Thu Mar 1 2018

...WIND ADVISORY IN EFFECT FROM 11 AM FRIDAY TO 6 AM EST
SATURDAY...

The National Weather Service in Mount Holly has issued a Wind
Advisory, which is in effect from 11 AM Friday to 6 AM EST
Saturday. The High Wind Watch is no longer in effect.

* WINDS...Northwest 20 to 30 mph with gusts up to 55 mph.

* TIMING...Strong winds with gusts of 40 to 50 mph develop toward
  midday Friday. The potential for peak gusts up to 55 mph are
  possible from mid afternoon to late evening Friday. Winds will
  diminish Saturday morning.

* IMPACTS...Strong winds may blow down limbs, trees, and power
  lines. Scattered power outages are expected. Wind and snow could
  combine resulting in limited visibilities which will make 
  travel difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that very windy conditions are expected.
Winds this strong can make driving difficult...especially for
high profile vehicles. Use extra caution. Light-weight outdoor
objects such as patio furniture and garbage cans should be
secured.

&&

$$

PO

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 28, 3:43 PM ESTCoastal Flood WatchPHIKent, Sussex24 hr
Feb 28, 3:33 PM ESTWinter Storm WatchPHISussex24 hr
Feb 28, 3:36 PM ESTGale WatchPHI12 hr
Feb 28, 3:36 PM ESTStorm WatchPHI12 hr
Feb 28, 3:45 PM ESTFlood WatchPHIBurlington, Camden, Hunterdon, Mercer, Middlesex, Monmouth and 4 more45 hr

Nearby

High Wind Watches in New Jersey, 2018High Wind Watches in Pennsylvania, 2018High Wind Watches in Maryland, 2018Every high wind watch in 2018

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.