Alert archive / New Jersey / Coastal Flood Advisories in 2020

Coastal Flood Advisory 17, NWS Philadelphia/Mount Holly

July 3, 20207 counties in New Jersey; Kent County, Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this coastal flood advisory at Jul 3, 2020, 12:19 PM EDT for 7 counties in New Jersey; Kent County, Sussex County, Delaware. It took effect at Jul 3, 2020, 7:00 PM EDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued: Jul 3, 2020, 12:19 PM EDT (16:19 UTC)
In effect from: Jul 3, 2020, 7:00 PM EDT
Expired: Jul 4, 2020, 12:00 AM EDT
In force: 5 hr
Issued by: NWS Philadelphia/Mount Holly

Counties Kent County, DE, Sussex County, DE, Atlantic County, NJ, Burlington County, NJ, Cape May County, NJ, Cumberland County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 52 km from the middle of the area, began a volume at 16:18 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

Brookhaven, NY (KOKX), launched 12:00Z, 4.3 hours before the alert went out and 217 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 42 J/kg
Mixed-layer CIN: -180 J/kg
Mixed-layer LCL: 1563 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -39 m²/s²
0-3 km storm-relative helicity: -27 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this coastal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this coastal flood advisory went out at Jul 3, 4:50 AM EDT, 7 hours 29 minutes earlier.

Area forecast discussion, Jul 3, 4:50 AM EDT, 7 hours 29 minutes before

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Hazardous weather outlook, Jul 3, 3:16 AM EDT, 9 hours 3 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 3, 6:35 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	40 min
Jul 3, 7:19 PM EDT	Special Weather Statement	PHI	Morris	26 min
Jul 3, 7:30 PM EDT	Areal Flood Advisory	PHI	Morris, Sussex	105 min
Jul 3, 7:32 PM EDT	Severe Thunderstorm Warning	PHI	Morris	28 min
Jul 3, 7:41 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Somerset	34 min
Jul 3, 7:45 PM EDT	Special Weather Statement	PHI	Hunterdon, Somerset	30 min
Jul 3, 5:40 PM EDT	Special Weather Statement	PHI	Carbon	35 min
Jul 3, 6:09 PM EDT	Special Weather Statement	PHI	Berks, Carbon, Lehigh, Northampton	36 min
Jul 3, 6:38 PM EDT	Special Weather Statement	PHI	Berks, Lehigh, Northampton	37 min
Jul 3, 6:49 PM EDT	Severe Thunderstorm Warning	PHI	Berks	41 min
Jul 3, 6:59 PM EDT	Areal Flood Advisory	PHI	Berks, Lehigh	117 min
Jul 3, 7:15 PM EDT	Special Weather Statement	PHI	Lehigh, Northampton	30 min
Jul 3, 7:22 PM EDT	Special Weather Statement	PHI	Berks	23 min
Jul 3, 7:46 PM EDT	Special Weather Statement	PHI	Berks	44 min

Nearby

Coastal Flood Advisories in New Jersey, 2020 Coastal Flood Advisories in Delaware, 2020 Every coastal flood 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.