Alert archive / New Jersey / Areal Flood Advisories in 2018

Areal Flood Advisory 308, NWS Philadelphia/Mount Holly

September 25, 2018Monmouth County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this areal flood advisory at Sep 25, 2018, 9:25 PM EDT for Monmouth County, Ocean County, New Jersey. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Sep 25, 2018, 9:25 PM EDT (01:25 UTC)
Expired: Sep 26, 2018, 12:28 AM EDT
In force: 3 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 23 km from the middle of the area, began a volume at 01:27 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, 1.4 hours before the alert went out and 143 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: 1035 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 453 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 318 m²/s²
0-3 km storm-relative helicity: 360 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 9.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory 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 advisory went out at Sep 25, 9:25 PM EDT, 0 minutes earlier.

Area forecast discussion, Sep 25, 9:25 PM EDT, 0 minutes before

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Hazardous weather outlook, Sep 25, 8:48 PM EDT, 37 minutes before

Hazardous Weather Outlook
National Weather Service Mount Holly NJ
848 PM EDT Tue Sep 25 2018

DEZ001>003-NJZ001-007>010-012-013-015>023-027-PAZ054-055-060>062-070-
071-101>106-270100-
New Castle-Kent-Inland Sussex-Sussex-Warren-Morris-Hunterdon-
Somerset-Middlesex-Western Monmouth-Mercer-Salem-Gloucester-Camden-
Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May-
Southeastern Burlington-Carbon-Monroe-Berks-Lehigh-Northampton-
Delaware-Philadelphia-Western Chester-Eastern Chester-
Western Montgomery-Eastern Montgomery-Upper Bucks-Lower Bucks-
848 PM EDT Tue Sep 25 2018

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

.DAY ONE...Tonight.

The probability for widespread hazardous weather is low.

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

There is a slight risk of severe thunderstorms Wednesday afternoon
into Wednesday evening. The primary hazard with these storms is
expected to be damaging winds.

.SPOTTER INFORMATION STATEMENT...

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

MDZ008-012-015-019-020-270100-
Cecil-Kent MD-Queen Annes-Talbot-Caroline-
848 PM EDT Tue Sep 25 2018

...COASTAL FLOOD ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

This Hazardous Weather Outlook is for northeast Maryland.

.DAY ONE...Tonight.

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

   Coastal Flood Advisory.

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

There is a slight risk of severe thunderstorms Wednesday afternoon
into Wednesday evening. The primary hazard with these storms is
expected to be damaging winds.

.SPOTTER INFORMATION STATEMENT...

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

DEZ004-NJZ014-024>026-270100-
Delaware Beaches-Eastern Monmouth-Atlantic Coastal Cape May-
Coastal Atlantic-Coastal Ocean-
848 PM EDT Tue Sep 25 2018

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

.DAY ONE...Tonight.

The probability for widespread hazardous weather is low.

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

There is a slight risk of severe thunderstorms Wednesday afternoon
into Wednesday evening. The primary hazard with these storms is
expected to be damaging winds.

There is a moderate risk for the development of dangerous rip
currents on Wednesday.

.SPOTTER INFORMATION STATEMENT...

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

ANZ430-431-450>455-270100-
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-
848 PM EDT Tue Sep 25 2018

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

.DAY ONE...Tonight.

The probability for widespread hazardous weather is low.

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

Wind gusts above 34 KT are possible in the vicinity of any
thunderstorms Wednesday afternoon into Wednesday night.

.SPOTTER INFORMATION STATEMENT...

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

MPS

In the hours before

Local storm report, Sep 25, 7:08 PM EDT, 2 hours 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
708 PM EDT TUE SEP 25 2018

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

0633 PM     FLOOD            1 N BURLINGTON TWP      40.08N  74.83W
09/25/2018                   BURLINGTON         NJ   SOCIAL MEDIA

            PHOTOS OF STREET FLOODING IN THE PINEWALD SECTION OF
            BURLINGTON TOWNSHIP.

&&

EVENT NUMBER PHI1801617

DAVIS

Local storm report, Sep 25, 7:46 PM EDT, 1 hour 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
746 PM EDT TUE SEP 25 2018

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

0643 PM     FLOOD            DELRAN                  40.02N  74.93W
09/25/2018                   BURLINGTON         NJ   NWS EMPLOYEE

            SEVERAL ROADS FLOODED AND SOME NEARLY IMPASSABLE VIA
            FACEBOOK POSTS FROM THOSE IN THE NEIGHBORHOOD. TIME
            ESTIMATED FROM RADAR.

&&

EVENT NUMBER PHI1801618

DAVIS

Local storm report, Sep 25, 7:48 PM EDT, 1 hour 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
748 PM EDT TUE SEP 25 2018

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

0647 PM     FLOOD            MORRISVILLE             40.21N  74.77W
09/25/2018                   BUCKS              PA   SOCIAL MEDIA

            SEVERAL ROADWAYS FLOODED IN THE AREA.

&&

EVENT NUMBER PHI1801619

DAVIS

Local storm report, Sep 25, 7:59 PM EDT, 1 hour 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
759 PM EDT TUE SEP 25 2018

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

0757 PM     HEAVY RAIN       MOUNT HOLLY WFO         40.01N  74.79W
09/25/2018  M1.91 INCH       BURLINGTON         NJ   NWS OFFICE

            1.91 INCHES SINCE AROUND 5 PM.

&&

EVENT NUMBER PHI1801620

MPS

Local storm report, Sep 25, 8:27 PM EDT, 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
827 PM EDT TUE SEP 25 2018

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

0724 PM     FLOOD            PHILADELPHIA            39.96N  75.14W
09/25/2018                   PHILADELPHIA       PA   EMERGENCY MNGR

            PER PHILADELPHIA OEM SOCIAL MEDIA ACCOUNT: MLK DRIVE
            CLOSED FROM FALLS BRIDGE TO MONTGOMERY DRIVE DUE TO
            FLOODING.

&&

EVENT NUMBER PHI1801621

MPS

Local storm report, Sep 25, 8:35 PM EDT, 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
835 PM EDT TUE SEP 25 2018

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

0834 PM     HEAVY RAIN       GREEN TWP               40.98N  74.80W
09/25/2018  M1.97 INCH       SUSSEX             NJ   SOCIAL MEDIA

            1.97" IN ABOUT 3 HOURS.

&&

EVENT NUMBER PHI1801622

MPS

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 26, 6:15 PM EDT	Special Weather Statement	PHI	Warren	30 min
Sep 26, 6:41 PM EDT	Areal Flood Advisory	PHI	Warren	3 hr
Sep 26, 7:37 PM EDT	Special Weather Statement	PHI	Sussex, Warren	38 min
Sep 25, 9:11 PM EDT	Areal Flood Warning	PHI	Philadelphia	3 hr
Sep 26, 6:37 PM EDT	Special Weather Statement	PHI	Chester	53 min
Sep 26, 7:06 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Delaware, Montgomery	54 min
Sep 26, 7:31 PM EDT	Areal Flood Advisory	PHI	Berks, Chester, Montgomery	106 min
Sep 26, 7:53 PM EDT	Severe Thunderstorm Warning	PHI	Chester	52 min

Nearby

Areal Flood Advisories in New Jersey, 2018 Every areal flood advisory in 2018

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.