Alert archive / New Jersey / Special Marine Warnings in 2023

Special Marine Warning 93, NWS Philadelphia/Mount Holly

July 20, 2023

NWS Philadelphia/Mount Holly issued this special marine warning at Jul 20, 2023, 2:11 PM EDT. It was in force for 49 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 20, 2023, 2:11 PM EDT (18:11 UTC)
Expired: Jul 20, 2023, 3:00 PM EDT
In force: 49 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 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 20, 2:06 PM EDT, 5 minutes earlier.

Area forecast discussion, Jul 20, 2:06 PM EDT, 5 minutes before

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Hazardous weather outlook, Jul 20, 10:54 AM EDT, 3 hours 17 minutes before

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In the hours before

Special weather statement, Jul 20, 2:09 PM EDT, 2 minutes before

Special Weather Statement
National Weather Service Mount Holly NJ
209 PM EDT Thu Jul 20 2023

DEZ001-201845-
New Castle DE-
209 PM EDT Thu Jul 20 2023

...A strong thunderstorm will impact portions of northwestern New
Castle County through 245 PM EDT...

At 208 PM EDT, Doppler radar was tracking a strong thunderstorm near
Bear, or near Newark, moving east at 20 mph.

HAZARD...Wind gusts up to 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Wilmington, Newark, Elsmere, New Castle, Delaware City, Newport,
Saint Georges, Greenville, Stanton, North Star, Glasgow, Bear,
Wilmington Manor, Pike Creek, Hockessin and Brookside.

This includes Interstate 95 in Delaware between mile markers 2 and
13.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3975 7576 3976 7575 3981 7556 3953 7558
      3958 7577
TIME...MOT...LOC 1808Z 272DEG 16KT 3967 7567

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

MPS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 1:53 PM EDT	Severe Thunderstorm Warning	PHI	Chester	40 min
Jul 20, 2:09 PM EDT	Special Weather Statement	PHI	New Castle	36 min
Jul 20, 2:37 PM EDT	Areal Flood Advisory	PHI	New Castle	109 min
Jul 20, 2:48 PM EDT	Special Weather Statement	PHI	New Castle	27 min
Jul 20, 4:23 PM EDT	Special Weather Statement	PHI	Kent	37 min
Jul 20, 4:27 PM EDT	Special Weather Statement	PHI	Sussex	48 min

Nearby

Special Marine Warnings in New Jersey, 2023 Every special marine warning in 2023

Sources

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