Alert archive / New Jersey / Special Marine Warnings in 2026

Special Marine Warning 101, NWS Philadelphia/Mount Holly

July 21, 2026

NWS Philadelphia/Mount Holly issued this special marine warning at Jul 21, 2026, 12:07 PM EDT. It was in force for 53 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
Jul 21, 2026, 12:07 PM EDT (16:07 UTC)
Expired
Jul 21, 2026, 1:00 PM EDT
In force
53 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.0 in
Wind
34.0 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 Jul 21, 6:42 AM EDT, 5 hours 25 minutes earlier.

Area forecast discussion, Jul 21, 6:42 AM EDT, 5 hours 25 minutes before
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Hazardous weather outlook, Jul 21, 4:29 AM EDT, 7 hours 38 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
429 AM EDT Tue Jul 21 2026

MDZ012-015-019-020-220900-
Kent MD-Queen Annes-Talbot-Caroline-
429 AM EDT Tue Jul 21 2026

This Hazardous Weather Outlook is for northeast Maryland.

.DAY ONE...Today and tonight.

Severe thunderstorms with damaging winds and hail are possible this
afternoon and evening. Localized flash flooding is possible this
afternoon and tonight.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Some severe thunderstorms with damaging winds are possible Wednesday.
Localized flash flooding is possible on Wednesday.

.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 21, 9:57 AM EDT, 2 hours 10 minutes before
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  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 8:49 AM EDTFlash Flood WarningPHISussex, Warren2 hr
Jul 21, 11:01 AM EDTSpecial Marine WarningPHI59 min
Jul 21, 11:14 AM EDTSpecial Marine WarningPHI46 min
Jul 21, 1:52 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren53 min
Jul 21, 2:00 PM EDTTornado WarningPHIMorris30 min
Jul 21, 2:25 PM EDTTornado WarningPHIMorris50 min
Jul 21, 2:49 PM EDTFlash Flood WarningPHIMorris3 hr
Jul 21, 2:57 PM EDTSevere Thunderstorm WarningPHIHunterdon37 min
Jul 21, 2:57 PM EDTTornado WarningPHIMorris, Somerset48 min
Jul 21, 3:13 PM EDTFlash Flood WarningPHIMorris, Somerset3 hr
Jul 21, 4:06 PM EDTSpecial Marine WarningPHI54 min
Jul 21, 4:38 PM EDTFlash Flood Warning Considerable damage threatPHIBurlington, Camden, Gloucester, Salem4 hr
Jul 21, 4:43 PM EDTSevere Thunderstorm WarningPHIGloucester, Salem47 min
Jul 21, 4:46 PM EDTSpecial Marine WarningPHI89 min
Jul 21, 4:50 PM EDTSevere Thunderstorm WarningPHIMercer, Middlesex, Monmouth, Somerset55 min
Jul 21, 5:14 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden46 min
Jul 21, 5:30 PM EDTSpecial Marine WarningPHI2 hr
Jul 21, 5:30 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester, Salem45 min
Jul 21, 5:43 PM EDTSpecial Marine WarningPHI2 hr
Jul 21, 5:49 PM EDTTornado WarningPHICape May26 min
Jul 21, 6:06 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean39 min
Jul 21, 6:07 PM EDTSpecial Marine WarningPHI53 min
Jul 21, 6:09 PM EDTTornado WarningPHICape May36 min
Jul 21, 6:18 PM EDTSpecial Marine WarningPHI57 min
Jul 21, 6:34 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Ocean41 min
Jul 21, 6:41 PM EDTSpecial Marine WarningPHI94 min
Jul 21, 6:50 PM EDTSpecial Marine WarningPHI85 min
Jul 21, 7:06 PM EDTTornado WarningPHIOcean12 min
Jul 21, 2:18 PM EDTSevere Thunderstorm WarningPHIBerks, Lehigh42 min
Jul 21, 3:37 PM EDTSevere Thunderstorm WarningPHIChester, Delaware53 min
Jul 21, 3:47 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe43 min
Jul 21, 3:58 PM EDTSevere Thunderstorm WarningPHIChester, Delaware47 min
Jul 21, 4:23 PM EDTSevere Thunderstorm WarningPHIChester, Delaware, Montgomery, Philadelphia52 min
Jul 21, 4:31 PM EDTFlash Flood WarningPHIChester, Delaware96 min
Jul 21, 5:06 PM EDTSevere Thunderstorm WarningPHIKent39 min
Jul 21, 5:42 PM EDTSevere Thunderstorm Warning Considerable damage threatPHIKent48 min
Jul 21, 6:00 PM EDTSevere Thunderstorm WarningPHIKent, New Castle45 min
Jul 21, 6:53 PM EDTFlash Flood WarningPHIKent, New Castle3 hr

Nearby

Special Marine Warnings in New Jersey, 2026Every 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.