Alert archive / New Jersey / Wind Advisories in 2020

Wind Advisory 7, NWS Philadelphia/Mount Holly

April 8, 20204 states

NWS Philadelphia/Mount Holly issued this wind advisory at Apr 8, 2020, 7:19 PM EDT for 4 states. It took effect at Apr 9, 2020, 12:00 PM EDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Apr 8, 2020, 7:19 PM EDT (23:19 UTC)
In effect from
Apr 9, 2020, 12:00 PM EDT
Expired
Apr 9, 2020, 7:00 PM EDT
In force
7 hr
Issued by
NWS Philadelphia/Mount Holly
All 34 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, Sussex County, NJ, Warren County, NJ, Berks County, PA, Bucks County, PA, Carbon County, PA, Chester County, PA, Delaware County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 68 km from the middle of the area, began a volume at 23:18 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, 11.3 hours before the alert went out and 219 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 2020-04-08Temperature 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 2020-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 314 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
1380 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
314 m²/s²
0-3 km storm-relative helicity
299 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

446 
WWUS71 KPHI 082319
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
719 PM EDT Wed Apr 8 2020

DEZ001-MDZ008-012-NJZ001-007>010-015>019-PAZ054-055-060>062-070-
071-101>106-091230-
/O.NEW.KPHI.WI.Y.0007.200409T1600Z-200409T2100Z/
New Castle-Cecil-Kent MD-Sussex-Warren-Morris-Hunterdon-Somerset-
Mercer-Salem-Gloucester-Camden-Northwestern Burlington-Carbon-
Monroe-Berks-Lehigh-Northampton-Delaware-Philadelphia-
Western Chester-Eastern Chester-Western Montgomery-
Eastern Montgomery-Upper Bucks-Lower Bucks-
Including the cities of Wilmington, Elkton, Chestertown, Newton, 
Washington, Morristown, Flemington, Somerville, Trenton, 
Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, 
Mount Holly, Jim Thorpe, Stroudsburg, Reading, Allentown, 
Bethlehem, Easton, Media, Philadelphia, Honey Brook, Oxford, 
West Chester, Kennett Square, Collegeville, Pottstown, 
Norristown, Lansdale, Chalfont, Perkasie, Morrisville, 
and Doylestown
719 PM EDT Wed Apr 8 2020

...WIND ADVISORY IN EFFECT FROM NOON TO 5 PM EDT THURSDAY...

* WHAT...West winds 15 to 25 mph with gusts of 45 to 50 mph 
  expected.

* WHERE...Portions of central, northern, northwest and southern 
  New Jersey, east central, northeast and southeast 
  Pennsylvania, northeast Maryland and northern Delaware.

* WHEN...From noon to 5 PM EDT Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

DEZ002>004-MDZ015-019-020-NJZ012>014-020>027-091230-
/O.NEW.KPHI.WI.Y.0007.200409T1700Z-200409T2300Z/
Kent-Inland Sussex-Delaware Beaches-Queen Annes-Talbot-Caroline-
Middlesex-Western Monmouth-Eastern Monmouth-Ocean-Cumberland-
Atlantic-Cape May-Atlantic Coastal Cape May-Coastal Atlantic-
Coastal Ocean-Southeastern Burlington-
Including the cities of Dover, Georgetown, Rehoboth Beach, 
Centreville, Easton, Denton, New Brunswick, Freehold, Sandy Hook,
Jackson, Millville, Hammonton, Cape May Court House, Ocean City, 
Atlantic City, Long Beach Island, and Wharton State Forest
719 PM EDT Wed Apr 8 2020

...WIND ADVISORY IN EFFECT FROM 1 PM TO 7 PM EDT THURSDAY...

* WHAT...West winds 15 to 25 mph with gusts of 45 to 50 mph 
  expected.

* WHERE...Portions of central, northern and southern New Jersey, 
  northeast Maryland and central and southern Delaware.

* WHEN...From 1 PM to 7 PM EDT Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

Staarmann
3 follow-up statements
742 
WWUS71 KPHI 090749
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
349 AM EDT Thu Apr 9 2020

DEZ001-MDZ008-012-NJZ001-007>010-015>019-PAZ054-055-060>062-070-
071-101>106-092100-
/O.CON.KPHI.WI.Y.0007.200409T1600Z-200409T2100Z/
New Castle-Cecil-Kent MD-Sussex-Warren-Morris-Hunterdon-Somerset-
Mercer-Salem-Gloucester-Camden-Northwestern Burlington-Carbon-
Monroe-Berks-Lehigh-Northampton-Delaware-Philadelphia-
Western Chester-Eastern Chester-Western Montgomery-
Eastern Montgomery-Upper Bucks-Lower Bucks-
Including the cities of Wilmington, Elkton, Chestertown, Newton, 
Washington, Morristown, Flemington, Somerville, Trenton, 
Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, 
Mount Holly, Jim Thorpe, Stroudsburg, Reading, Allentown, 
Bethlehem, Easton, Media, Philadelphia, Honey Brook, Oxford, 
West Chester, Kennett Square, Collegeville, Pottstown, 
Norristown, Lansdale, Chalfont, Perkasie, Morrisville, 
and Doylestown
349 AM EDT Thu Apr 9 2020

...WIND ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 5 PM EDT
THIS AFTERNOON...

* WHAT...West winds 20 to 35 mph with gusts up to 50 mph 
  expected.

* WHERE...Portions of central, northern, northwest, and southern 
  New Jersey, east central, northeast, and southeast 
  Pennsylvania, northeast Maryland, and northern Delaware.

* WHEN...From noon today to 5 PM EDT this afternoon.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down, and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

DEZ002>004-MDZ015-019-020-NJZ012>014-020>027-092100-
/O.CON.KPHI.WI.Y.0007.200409T1700Z-200409T2300Z/
Kent-Inland Sussex-Delaware Beaches-Queen Annes-Talbot-Caroline-
Middlesex-Western Monmouth-Eastern Monmouth-Ocean-Cumberland-
Atlantic-Cape May-Atlantic Coastal Cape May-Coastal Atlantic-
Coastal Ocean-Southeastern Burlington-
Including the cities of Dover, Georgetown, Rehoboth Beach, 
Centreville, Easton, Denton, New Brunswick, Freehold, Sandy Hook,
Jackson, Millville, Hammonton, Cape May Court House, Ocean City, 
Atlantic City, Long Beach Island, and Wharton State Forest
349 AM EDT Thu Apr 9 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
7 PM EDT THIS EVENING...

* WHAT...West winds 20 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...Portions of central, northern, and southern New Jersey,
  northeast Maryland, and central and southern Delaware.

* WHEN...From 1 PM this afternoon to 7 PM EDT this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down, and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

CMS
385 
WWUS71 KPHI 091932
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
332 PM EDT Thu Apr 9 2020

DEZ001-MDZ008-012-NJZ001-007>010-015>019-PAZ054-055-060>062-070-
071-101>106-100845-
/O.NEW.KPHI.WI.Y.0008.200410T1100Z-200410T2300Z/
/O.EXT.KPHI.WI.Y.0007.000000T0000Z-200409T2300Z/
New Castle-Cecil-Kent MD-Sussex-Warren-Morris-Hunterdon-Somerset-
Mercer-Salem-Gloucester-Camden-Northwestern Burlington-Carbon-
Monroe-Berks-Lehigh-Northampton-Delaware-Philadelphia-
Western Chester-Eastern Chester-Western Montgomery-
Eastern Montgomery-Upper Bucks-Lower Bucks-
Including the cities of Wilmington, Elkton, Chestertown, Newton, 
Washington, Morristown, Flemington, Somerville, Trenton, 
Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, 
Mount Holly, Jim Thorpe, Stroudsburg, Reading, Allentown, 
Bethlehem, Easton, Media, Philadelphia, Honey Brook, Oxford, 
West Chester, Kennett Square, Collegeville, Pottstown, 
Norristown, Lansdale, Chalfont, Perkasie, Morrisville, 
and Doylestown
332 PM EDT Thu Apr 9 2020

...WIND ADVISORY NOW IN EFFECT UNTIL 7 PM EDT THIS EVENING...
...WIND ADVISORY IN EFFECT FROM 7 AM TO 7 PM EDT FRIDAY...

* WHAT...For the first Wind Advisory, northwest winds 15 to 25 
  mph with gusts up to 50 mph. For the second Wind Advisory, 
  west winds 15 to 25 mph with gusts up to 50 mph expected.

* WHERE...Portions of central, northern, northwest and southern 
  New Jersey, east central, northeast and southeast 
  Pennsylvania, northeast Maryland and northern Delaware.

* WHEN...For the first Wind Advisory, until 7 PM EDT this 
  evening. For the second Wind Advisory, from 7 AM to 7 PM EDT 
  Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Winds will diminish somewhat tonight,
  though a breezy night is expected with gusts over 30 mph
  possible. Winds will then increase again on Friday as the 
  second Wind Advisory goes into effect.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

DEZ002>004-MDZ015-019-020-NJZ012>014-020>027-100845-
/O.NEW.KPHI.WI.Y.0008.200410T1100Z-200410T2300Z/
/O.CON.KPHI.WI.Y.0007.000000T0000Z-200409T2300Z/
Kent-Inland Sussex-Delaware Beaches-Queen Annes-Talbot-Caroline-
Middlesex-Western Monmouth-Eastern Monmouth-Ocean-Cumberland-
Atlantic-Cape May-Atlantic Coastal Cape May-Coastal Atlantic-
Coastal Ocean-Southeastern Burlington-
Including the cities of Dover, Georgetown, Rehoboth Beach, 
Centreville, Easton, Denton, New Brunswick, Freehold, Sandy Hook,
Jackson, Millville, Hammonton, Cape May Court House, Ocean City, 
Atlantic City, Long Beach Island, and Wharton State Forest
332 PM EDT Thu Apr 9 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING...
...WIND ADVISORY IN EFFECT FROM 7 AM TO 7 PM EDT FRIDAY...

* WHAT...For the first Wind Advisory, northwest winds 15 to 25 
  mph with gusts up to 50 mph. For the second Wind Advisory, 
  west winds 20 to 30 mph with gusts up to 50 mph expected.

* WHERE...Portions of central, northern and southern New Jersey, 
  northeast Maryland and central and southern Delaware.

* WHEN...For the first Wind Advisory, until 7 PM EDT this 
  evening. For the second Wind Advisory, from 7 AM to 7 PM EDT 
  Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Winds will diminish somewhat tonight,
  though a breezy night is expected with gusts over 30 mph
  possible. Winds will then increase again on Friday as the 
  second Wind Advisory goes into effect.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

JEO
654 
WWUS71 KPHI 092252
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
652 PM EDT Thu Apr 9 2020

DEZ001-MDZ008-012-NJZ001-007>010-015>019-PAZ054-055-060>062-070-
071-101>106-101200-
/O.EXP.KPHI.WI.Y.0007.000000T0000Z-200409T2300Z/
/O.CON.KPHI.WI.Y.0008.200410T1100Z-200410T2300Z/
New Castle-Cecil-Kent MD-Sussex-Warren-Morris-Hunterdon-Somerset-
Mercer-Salem-Gloucester-Camden-Northwestern Burlington-Carbon-
Monroe-Berks-Lehigh-Northampton-Delaware-Philadelphia-
Western Chester-Eastern Chester-Western Montgomery-
Eastern Montgomery-Upper Bucks-Lower Bucks-
Including the cities of Wilmington, Elkton, Chestertown, Newton, 
Washington, Morristown, Flemington, Somerville, Trenton, 
Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, 
Mount Holly, Jim Thorpe, Stroudsburg, Reading, Allentown, 
Bethlehem, Easton, Media, Philadelphia, Honey Brook, Oxford, 
West Chester, Kennett Square, Collegeville, Pottstown, 
Norristown, Lansdale, Chalfont, Perkasie, Morrisville, 
and Doylestown
652 PM EDT Thu Apr 9 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 7 AM TO 7 PM EDT FRIDAY...
...WIND ADVISORY WILL EXPIRE AT 7 PM EDT THIS EVENING...

* WHAT...West winds 15 to 25 mph with gusts up to 50 mph 
  expected.

* WHERE...Portions of central, northern, northwest and southern 
  New Jersey, east central, northeast and southeast 
  Pennsylvania, northeast Maryland and northern Delaware.

* WHEN...From 7 AM to 7 PM EDT Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Winds will diminish somewhat tonight,
  though a breezy night is expected with gusts of 30-40 mph
  possible, especially after midnight. Winds will then increase
  again around Daybreak Friday as the second Wind Advisory goes
  into effect.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

DEZ002>004-MDZ015-019-020-NJZ012>014-020>027-101200-
/O.EXP.KPHI.WI.Y.0007.000000T0000Z-200409T2300Z/
/O.CON.KPHI.WI.Y.0008.200410T1100Z-200410T2300Z/
Kent-Inland Sussex-Delaware Beaches-Queen Annes-Talbot-Caroline-
Middlesex-Western Monmouth-Eastern Monmouth-Ocean-Cumberland-
Atlantic-Cape May-Atlantic Coastal Cape May-Coastal Atlantic-
Coastal Ocean-Southeastern Burlington-
Including the cities of Dover, Georgetown, Rehoboth Beach, 
Centreville, Easton, Denton, New Brunswick, Freehold, Sandy Hook,
Jackson, Millville, Hammonton, Cape May Court House, Ocean City, 
Atlantic City, Long Beach Island, and Wharton State Forest
652 PM EDT Thu Apr 9 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 7 AM TO 7 PM EDT FRIDAY...
...WIND ADVISORY WILL EXPIRE AT 7 PM EDT THIS EVENING...

* WHAT...West winds 20 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...Portions of central, northern and southern New Jersey, 
  northeast Maryland and central and southern Delaware.

* WHEN...From 7 AM to 7 PM EDT Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Winds will diminish somewhat tonight,
  though a breezy night is expected with gusts of 30-40 mph
  possible, especially after midnight. Winds will then increase
  again around Daybreak Friday as the second Wind Advisory goes
  into effect.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

Staarmann

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 7, 9:30 PM EDTCoastal Flood AdvisoryPHIBucks, Delaware, Philadelphia33 hr
Apr 8, 1:53 AM EDTSpecial Weather StatementPHICarbon, Lehigh, Northampton37 min
Apr 8, 1:55 AM EDTSpecial Weather StatementPHIChester, Delaware50 min
Apr 8, 1:59 AM EDTSpecial Weather StatementPHIBerks46 min
Apr 8, 2:30 AM EDTSevere Thunderstorm WarningPHIChester, Delaware, Montgomery, Philadelphia30 min
Apr 8, 2:40 AM EDTSpecial Weather StatementPHILehigh, Northampton35 min
Apr 7, 11:10 PM EDTSpecial Weather StatementPHISussex35 min
Apr 7, 11:48 PM EDTSevere Thunderstorm WarningPHISussex27 min
Apr 8, 12:53 AM EDTSpecial Weather StatementPHIKent52 min
Apr 8, 1:06 AM EDTSpecial Weather StatementPHINew Castle39 min
Apr 8, 4:21 AM EDTSpecial Weather StatementPHIKent, New Castle39 min
Apr 8, 4:56 AM EDTSpecial Weather StatementPHIKent, Sussex64 min
Apr 8, 2:35 AM EDTSpecial Weather StatementPHICamden25 min
Apr 8, 2:51 AM EDTSpecial Weather StatementPHICumberland24 min
Apr 8, 2:58 AM EDTSpecial Weather StatementPHIBurlington32 min
Apr 8, 3:13 AM EDTSpecial Weather StatementPHIHunterdon, Mercer, Middlesex32 min
Apr 8, 3:25 AM EDTSpecial Weather StatementPHIBurlington, Ocean35 min
Apr 8, 3:50 AM EDTGale WatchPHI24 hr
Apr 8, 4:52 AM EDTSpecial Marine WarningPHI83 min
Apr 8, 3:24 PM EDTGale WarningPHI58 hr
Apr 7, 11:21 PM EDTSpecial Weather StatementPHICaroline39 min
Apr 8, 12:09 AM EDTSpecial Weather StatementPHIKent, Queen Anne's51 min

Nearby

Wind Advisories in New Jersey, 2020Wind Advisories in Pennsylvania, 2020Wind Advisories in Maryland, 2020Every wind advisory in 2020

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.