Alert archive / New Jersey / Special Marine Warnings in 2026

Special Marine Warning 57, NWS Philadelphia/Mount Holly

June 22, 2026

NWS Philadelphia/Mount Holly issued this special marine warning at Jun 22, 2026, 8:36 PM EDT. It was in force for 114 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 22, 2026, 8:36 PM EDT (00:36 UTC)
Expired: Jun 22, 2026, 10:30 PM EDT
In force: 114 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 49.0 mph

What forecasters said that day

The local office's own words before this special marine 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 special marine warning went out at Jun 22, 7:48 PM EDT, 48 minutes earlier.

Area forecast discussion, Jun 22, 7:48 PM EDT, 48 minutes before

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Hazardous weather outlook, Jun 22, 5:07 AM EDT, 15 hours 29 minutes before

Hazardous Weather Outlook
National Weather Service Mount Holly NJ
507 AM EDT Mon Jun 22 2026

MDZ012-015-019-020-230915-
Kent MD-Queen Annes-Talbot-Caroline-
507 AM EDT Mon Jun 22 2026

This Hazardous Weather Outlook is for northeast Maryland.

.DAY ONE...Today and tonight.

A slight risk of severe thunderstorms and excessive rainfall exists
today and tonight.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Jun 22, 6:27 PM EDT, 2 hours 9 minutes before

Preliminary Local Storm Report
National Weather Service Mount Holly NJ
627 PM EDT Mon Jun 22 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0616 PM     Hail             East Greenwich Twp      39.80N 75.22W
06/22/2026  E0.25 Inch       Gloucester         NJ   Emergency Mngr

            Report of pea sized hail. Time estimated
            from radar.

&&

NG

Local storm report, Jun 22, 6:50 PM EDT, 1 hour 46 minutes before

Preliminary Local Storm Report
National Weather Service Mount Holly NJ
650 PM EDT Mon Jun 22 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0623 PM     Flash Flood      1 S Wyncote             40.08N 75.15W
06/22/2026                   Montgomery         PA   Fire Dept/Rescue

            Report of a water rescue.

&&

NG

Local storm report, Jun 22, 6:54 PM EDT, 1 hour 42 minutes before

Preliminary Local Storm Report
National Weather Service Mount Holly NJ
654 PM EDT Mon Jun 22 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0645 PM     Flash Flood      2 NE Mercerville        40.25N 74.66W
06/22/2026                   Mercer             NJ   Trained Spotter

            Hughes drive flooded near Mercer County Park
            with the road impassible.

&&

NG

Local storm report, Jun 22, 7:03 PM EDT, 1 hour 33 minutes before

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Local storm report, Jun 22, 7:07 PM EDT, 1 hour 29 minutes before

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Local storm report, Jun 22, 7:50 PM EDT, 46 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 23, 1:11 AM EDT	Flash Flood Warning	PHI	Morris, Sussex	3 hr
Jun 22, 11:21 PM EDT	Flash Flood Warning	PHI	Northampton	3 hr
Jun 22, 8:06 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	39 min
Jun 22, 8:23 PM EDT	Tornado Warning	PHI	Sussex	22 min
Jun 22, 8:34 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	56 min

Nearby

Special Marine Warnings in New Jersey, 2026 Every special marine warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.