Alert archive / New Jersey / Coastal Flood Advisories in 2018

Coastal Flood Advisory 1, NWS Philadelphia/Mount Holly

January 3, 20185 counties in New Jersey; Kent County, Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this coastal flood advisory at Jan 3, 2018, 12:17 PM EST for 5 counties in New Jersey; Kent County, Sussex County, Delaware. It took effect at Jan 4, 2018, 8:00 AM EST. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Jan 3, 2018, 12:17 PM EST (17:17 UTC)
In effect from: Jan 4, 2018, 8:00 AM EST
Expired: Jan 4, 2018, 2:00 PM EST
In force: 6 hr
Issued by: NWS Philadelphia/Mount Holly

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

The radar

The Philadelphia radar (KDIX), 60 km from the middle of the area, began a volume at 17:21 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, 5.3 hours before the alert went out and 181 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2002 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 150 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 Jan 3, 12:13 PM EST, 4 minutes earlier.

Area forecast discussion, Jan 3, 12:13 PM EST, 4 minutes before

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Hazardous weather outlook, Jan 3, 4:34 AM EST, 7 hours 43 minutes before

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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
Jan 3, 3:15 AM EST	Gale Warning	PHI		4 days
Jan 3, 3:15 AM EST	Storm Warning	PHI		39 hr
Jan 3, 3:15 AM EST	Heavy Freezing Spray Watch	PHI		24 hr
Jan 3, 3:15 AM EST	Heavy Freezing Spray Advisory	PHI		60 hr
Jan 3, 4:03 AM EST	Winter Storm Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 5 more	38 hr
Jan 3, 4:03 AM EST	Winter Weather Advisory	PHI	Burlington, Camden, Cumberland, Gloucester, Hunterdon, Mercer and 6 more	38 hr
Jan 3, 3:17 PM EST	Blizzard Warning	PHI	Atlantic, Burlington, Cape May, Monmouth, Ocean	27 hr
Jan 3, 4:03 AM EST	Wind Chill Watch	PHI	Carbon, Monroe	24 hr

Nearby

Coastal Flood Advisories in New Jersey, 2018 Coastal Flood Advisories in Delaware, 2018 Every coastal flood advisory 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.