Alert archive / New Jersey / Special Marine Warnings in 2019

Special Marine Warning 172, NWS Philadelphia/Mount Holly

August 21, 2019

NWS Philadelphia/Mount Holly issued this special marine warning at Aug 21, 2019, 5:32 AM EDT. It was in force for 58 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
Aug 21, 2019, 5:32 AM EDT (09:32 UTC)
Expired
Aug 21, 2019, 6:30 AM EDT
In force
58 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 Aug 21, 4:21 AM EDT, 1 hour 11 minutes earlier.

Area forecast discussion, Aug 21, 4:21 AM EDT, 1 hour 11 minutes before
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Hazardous weather outlook, Aug 21, 4:40 AM EDT, 52 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
440 AM EDT Wed Aug 21 2019

DEZ002-003-MDZ012-015-019-020-NJZ021-023-220845-
Kent-Inland Sussex-Kent MD-Queen Annes-Talbot-Caroline-Cumberland-
Cape May-
440 AM EDT Wed Aug 21 2019

This Hazardous Weather Outlook is for central Delaware, southern
Delaware, northeast Maryland and southern New Jersey.

.DAY ONE...Today and tonight.

Thunderstorms may produce damaging wind gusts, heavy rainfall, and
localized flooding.

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

The chance of thunderstorms continues for Thursday, with damaging
wind gusts, heavy rainfall, and localized flooding possible.

.SPOTTER INFORMATION STATEMENT...

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

DEZ004-220845-
Delaware Beaches-
440 AM EDT Wed Aug 21 2019

This Hazardous Weather Outlook is for southern Delaware.

.DAY ONE...Today and tonight.

Thunderstorms may produce strong wind gusts, heavy rainfall, and
localized flooding.

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

The chance of thunderstorms continues for Thursday, with strong wind
gusts, heavy rainfall, and localized flooding possible.

.SPOTTER INFORMATION STATEMENT...

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

ANZ430-431-450>455-220845-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
440 AM EDT Wed Aug 21 2019

This Hazardous Weather Outlook is for Atlantic coastal waters and
Delaware Bay Waters.

.DAY ONE...Today and tonight.

Thunderstorms may produce briefly strong wind gusts and hazardous
conditions on the waters in their proximity.

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

Thunderstorms may produce briefly strong wind gusts and hazardous
conditions on the waters in their proximity on Thursday.

.SPOTTER INFORMATION STATEMENT...

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

MDZ008-NJZ001-007>009-016-022-PAZ054-055-060>062-101-103-105-220845-
Cecil-Sussex-Warren-Morris-Hunterdon-Salem-Atlantic-Carbon-Monroe-
Berks-Lehigh-Northampton-Western Chester-Western Montgomery-
Upper Bucks-
440 AM EDT Wed Aug 21 2019

This Hazardous Weather Outlook is for northeast Maryland, northern
New Jersey, northwest New Jersey, southern New Jersey, east central
Pennsylvania, northeast Pennsylvania and southeast Pennsylvania.

.DAY ONE...Today and tonight.

Scattered to numerous thunderstorms are expected through this
evening. The storms will be capable of producing damaging wind gusts
and hail. Storms may also generate torrential downpours, leading to
localized flooding.

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

The chance of thunderstorms continues for Thursday, with damaging
wind gusts, heavy rainfall, and localized flooding possible.

.SPOTTER INFORMATION STATEMENT...

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

DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-220845-
New Castle-Mercer-Gloucester-Camden-Northwestern Burlington-Delaware-
Philadelphia-Eastern Chester-Eastern Montgomery-Lower Bucks-
440 AM EDT Wed Aug 21 2019

...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for northern Delaware, central
New Jersey, southern New Jersey and southeast Pennsylvania.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.

Scattered to numerous thunderstorms are expected through this
evening. The storms will be capable of producing damaging wind gusts
and hail. Storms may also generate torrential downpours, leading to
localized flooding.

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

The chance of thunderstorms continues for Thursday, with damaging
wind gusts, heavy rainfall, and localized flooding possible.

Heat index values may approach 100 on Thursday afternoon.

.SPOTTER INFORMATION STATEMENT...

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

NJZ010-012-013-020-027-220845-
Somerset-Middlesex-Western Monmouth-Ocean-Southeastern Burlington-
440 AM EDT Wed Aug 21 2019

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for central New Jersey, northern
New Jersey and southern New Jersey.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.

Scattered to numerous thunderstorms are expected through this
evening. The storms will be capable of producing damaging wind gusts
and hail. Storms may also generate torrential downpours, leading to
localized flooding.

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

The chance of thunderstorms continues for Thursday, with strong wind
gusts, heavy rainfall, and localized flooding possible.

.SPOTTER INFORMATION STATEMENT...

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

NJZ014-024>026-220845-
Eastern Monmouth-Atlantic Coastal Cape May-Coastal Atlantic-
Coastal Ocean-
440 AM EDT Wed Aug 21 2019

This Hazardous Weather Outlook is for central New Jersey and
southern New Jersey.

.DAY ONE...Today and tonight.

Scattered to numerous thunderstorms are expected through this
evening. The storms will be capable of producing damaging wind gusts
and hail. Storms may also generate torrential downpours, leading to
localized flooding.

There is a moderate risk for the formation of dangerous rip currents
today.

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

The chance of thunderstorms continues for Thursday, with strong wind
gusts, heavy rainfall, and localized flooding possible.

.SPOTTER INFORMATION STATEMENT...

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

CMC

In the hours before

Special weather statement, Aug 20, 11:47 PM EDT, 5 hours 45 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
1147 PM EDT Tue Aug 20 2019

DEZ003-004-210430-
Inland Sussex-Delaware Beaches-
1147 PM EDT Tue Aug 20 2019

...A STRONG THUNDERSTORM WILL AFFECT EASTERN SUSSEX COUNTY...

At 1147 PM EDT, a strong thunderstorm was located near Millsboro, or
8 miles south of Georgetown, moving northeast at 25 mph.

Wind gusts up to 40 mph and half inch hail are possible with this
storm.

Locations impacted include...
Georgetown, Millsboro, Lewes, Milton, Dagsboro, Henlopen Acres,
Gumboro, Cape Henlopen State Park, Long Neck, Frankford and Dewey
Beach.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 3845 7533 3856 7551 3892 7527 3875 7493
TIME...MOT...LOC 0347Z 218DEG 23KT 3857 7537

CS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 21, 3:30 AM EDTSmall Craft AdvisoryPHI23 hr
Aug 21, 4:24 AM EDTSpecial Marine WarningPHI96 min
Aug 21, 4:15 PM EDTSpecial Weather StatementPHIHunterdon30 min
Aug 21, 4:36 PM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Morris, Somerset54 min
Aug 21, 3:01 PM EDTSpecial Weather StatementPHIBerks29 min
Aug 21, 3:08 PM EDTSevere Thunderstorm WarningPHIBerks, Chester, Montgomery34 min
Aug 21, 4:07 PM EDTSevere Thunderstorm WarningPHIChester, Montgomery38 min
Aug 21, 7:58 PM EDTSpecial Weather StatementPHIChester47 min
Aug 20, 11:47 PM EDTSpecial Weather StatementPHISussex43 min

Nearby

Special Marine Warnings in New Jersey, 2019Every special marine warning in 2019

Sources

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