Alert archive / New Jersey / Areal Flood Warnings in 2025

Areal Flood Warning 36, NWS Philadelphia/Mount Holly

July 9, 20254 counties in New Jersey

NWS Philadelphia/Mount Holly issued this areal flood warning at Jul 9, 2025, 11:57 PM EDT for 4 counties in New Jersey. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 9, 2025, 11:57 PM EDT (03:57 UTC)
Expired: Jul 10, 2025, 3:33 AM EDT
In force: 4 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: None

Counties Atlantic County, NJ, Cape May County, NJ, Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 30 km from the middle of the area, began a volume at 03:57 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 00:00Z, 4.0 hours before the alert went out and 190 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: 340 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 1139 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning 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 areal flood warning went out at Jul 9, 11:56 PM EDT, 1 minute earlier.

Area forecast discussion, Jul 9, 11:56 PM EDT, 1 minute before

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Hazardous weather outlook, Jul 9, 3:34 PM EDT, 8 hours 23 minutes before

Hazardous Weather Outlook
National Weather Service Mount Holly NJ
334 PM EDT Wed Jul 9 2025

MDZ012-015-019-020-101945-
Kent MD-Queen Annes-Talbot-Caroline-
334 PM EDT Wed Jul 9 2025

...FLOOD WATCH REMAINS IN EFFECT FROM 5 PM EDT THIS AFTERNOON
THROUGH LATE TONIGHT...

This Hazardous Weather Outlook is for northeast Maryland.

.DAY ONE...This afternoon and tonight.

A slight risk for severe weather is in place for this evening.
Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several rounds of showers and thunderstorms are expected this week.
Any shower or thunderstorm will be capable of producing heavy
rainfall through the end of the week.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

In the hours before

Local storm report, Jul 9, 10:28 PM EDT, 1 hour 29 minutes before

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Local storm report, Jul 9, 10:44 PM EDT, 1 hour 13 minutes before

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Local storm report, Jul 9, 10:46 PM EDT, 1 hour 11 minutes before

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Local storm report, Jul 9, 10:53 PM EDT, 1 hour 4 minutes before

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Local storm report, Jul 9, 11:14 PM EDT, 43 minutes before

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Local storm report, Jul 9, 11:23 PM EDT, 34 minutes before

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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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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 9, 8:26 PM EDT	Special Marine Warning	PHI		2 hr
Jul 9, 8:32 PM EDT	Flash Flood Warning Considerable damage threat	PHI	Burlington, Camden, Gloucester, Salem	4 hr
Jul 9, 8:47 PM EDT	Flash Flood Warning	PHI	Burlington, Mercer	2 hr
Jul 9, 9:17 PM EDT	Special Marine Warning	PHI		118 min
Jul 9, 9:58 PM EDT	Severe Thunderstorm Warning	PHI	Cape May	47 min
Jul 9, 10:34 PM EDT	Special Marine Warning	PHI		86 min
Jul 9, 10:57 PM EDT	Tornado Warning	PHI	Atlantic, Ocean	33 min
Jul 9, 11:59 PM EDT	Special Marine Warning	PHI		61 min
Jul 10, 1:49 PM EDT	Flash Flood Warning Considerable damage threat	PHI	Atlantic, Cumberland	4 hr
Jul 10, 2:47 PM EDT	Flash Flood Warning	PHI	Cumberland	94 min
Jul 10, 6:00 PM EDT	Special Marine Warning	PHI		60 min
Jul 9, 8:00 PM EDT	Flash Flood Warning Considerable damage threat	PHI	Chester, Delaware, Montgomery, Philadelphia	4 hr
Jul 9, 9:57 PM EDT	River Flood Warning	PHI	Delaware	7 hr
Jul 9, 10:35 PM EDT	Areal Flood Warning	PHI	Chester	4 hr
Jul 9, 10:46 PM EDT	River Flood Warning	PHI	Chester, Delaware	8 hr
Jul 9, 11:48 PM EDT	Areal Flood Warning	PHI	Delaware	4 hr
Jul 9, 8:46 PM EDT	Tornado Warning	PHI	New Castle	29 min
Jul 9, 8:51 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	39 min
Jul 9, 9:13 PM EDT	Tornado Warning	PHI	Sussex	32 min
Jul 9, 9:30 PM EDT	River Flood Warning	PHI	New Castle	7 hr
Jul 9, 11:27 PM EDT	River Flood Warning	PHI	New Castle	8 hr
Jul 9, 11:44 PM EDT	Areal Flood Warning	PHI	New Castle	4 hr
Jul 10, 4:15 PM EDT	Flash Flood Warning	PHI	Kent	117 min
Jul 10, 7:33 PM EDT	Flash Flood Warning	PHI	Sussex	104 min

Nearby

Areal Flood Warnings in New Jersey, 2025 Every areal flood warning 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; radar from the NEXRAD Level II archive.