Alert archive / New Jersey / Coastal Flood Advisories in 2025

Coastal Flood Advisory 13, NWS Philadelphia/Mount Holly

June 26, 20258 counties in New Jersey; Kent County, New Castle County, Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this coastal flood advisory at Jun 26, 2025, 4:25 AM EDT for 8 counties in New Jersey; Kent County, New Castle County, Sussex County, Delaware. It took effect at Jun 26, 2025, 7:00 PM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Jun 26, 2025, 4:25 AM EDT (08:25 UTC)
In effect from: Jun 26, 2025, 7:00 PM EDT
Expired: Jun 27, 2025, 3:00 AM EDT
In force: 8 hr
Issued by: NWS Philadelphia/Mount Holly

Counties Kent County, DE, New Castle 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, Salem County, NJ

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 8.4 hours before the alert went out and 226 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: 461 J/kg
Mixed-layer CIN: -143 J/kg
Mixed-layer LCL: 1536 m above ground
0-6 km bulk shear: 2 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: 38 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 Jun 26, 3:48 AM EDT, 37 minutes earlier.

Area forecast discussion, Jun 26, 3:48 AM EDT, 37 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
Jun 26, 11:05 AM EDT	Small Craft Advisory	PHI		37 hr
Jun 26, 4:20 PM EDT	Severe Thunderstorm Warning	PHI	Warren	40 min
Jun 26, 7:43 PM EDT	Special Marine Warning	PHI		40 min
Jun 26, 12:24 PM EDT	Flood Watch	PHI	Berks, Carbon, Chester, Lehigh	11 hr
Jun 26, 3:48 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	42 min
Jun 26, 4:31 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Lehigh, Montgomery	44 min
Jun 26, 5:45 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	45 min
Jun 26, 6:21 PM EDT	Flash Flood Warning	PHI	Berks	2 hr
Jun 26, 6:29 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Delaware, Montgomery	46 min
Jun 26, 6:49 PM EDT	Flash Flood Warning	PHI	Chester, Delaware	4 hr
Jun 26, 6:54 PM EDT	Severe Thunderstorm Warning	PHI	Chester	36 min
Jun 26, 7:14 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	46 min
Jun 26, 7:27 PM EDT	Flash Flood Warning	PHI	Chester, Delaware	4 hr
Jun 26, 2:05 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	40 min

Nearby

Coastal Flood Advisories in New Jersey, 2025 Coastal Flood Advisories in Delaware, 2025 Every coastal flood advisory in 2025

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.