Thunderstorms produced locally heavy rain in central New Jersey on the afternoon and evening of September 11. Rainfall totals were as high as 1 to 2 inches.
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The episode as NWS PHI wrote it up.
Thunderstorms produced locally heavy rain in central New Jersey on the afternoon and evening of September 11. Rainfall totals were as high as 1 to 2 inches.
The local office's own words before the first event, 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 the first event at Sep 11, 2:20 PM EST, 2 hours 45 minutes earlier.
Area Forecast Discussion National Weather Service Mount Holly NJ 320 PM EDT Mon Sep 11 2023 .SYNOPSIS... A weak surface front across our area will dissipate tonight. A stronger cold front approaches Tuesday night and then crosses our region Wednesday. High pressure builds in Thursday and likely remains in place through Sunday as Hurricane Lee most likely passes to the east. && .NEAR TERM /THROUGH TUESDAY/... Scattered to loosely organized convection has fired up along the Poconos/Lehigh Valley/Berks region as well as along the sea breeze in coastal NJ/DE and is expected to develop inland before the supporting upper level shortwave moves out north and east by this evening, taking showers and storms along with it. Severe parameters look minimal, with modest MUCAPE values around 1000-1500 J/kg and 0- 6km bulk shear of only 15-25kts, but an isolated severe thunderstorm cannot be fully ruled out. Locally moderate to heavy rainfall, however, is possible again today due to the abundance of low level moisture. WPC continues to hold a Marginal to Slight Excessive Rainfall Outlook. As showers and storms clear out tonight, winds will turn calm, allowing for the development of patchy fog and low stratus. Overnight lows are expected to be in the 60s. For Tuesday, we will see more zonal flow across the region during the day ahead of an approaching cold front, limiting much, if any, showers or storms during the daylight hours. Did keep a slight chance for some convection, but keeping POPs around 25% or less. Afternoon highs will be around the low to mid 80s with mid to upper 70s across the higher elevations. Dew points will still be elevated, but not uncomfortable in the mid to upper 60s. && .SHORT TERM /TUESDAY NIGHT THROUGH THURSDAY/... The next frontal system will be approaching from the west Tuesday night, with the cold front still well to the west with low pressure over southern Canada. However, a low level jet combined with leading shortwave energy will result in increasing shower and thunderstorm coverage as we go through the night, with good coverage of showers and storms by late Tuesday night into Wednesday morning. Timing isn't great for severe weather but there could definitely be some isolated flooding concerns. Additionally, if there turns out to be a bit more of a surface warm front than currently appears to be, there may be a bit more low-level shear to be utilized by storms. Lows mostly in the 60s. Wednesday, initial around of showers and storms moves eastward in the morning, with a dry period starting towards late morning. The front itself will try to instigate new storms in the afternoon, but lingering clouds and stabilization from the morning activity may be enough to suppress afternoon convection somewhat. Highs mostly in the 70s. Front moves through late afternoon Wednesday, with high pressure building in Wednesday night into Thursday. Chance of precip rapidly dwindles from west to east, with mostly clear skies likely by late Wednesday night and persisting through Thursday. Dew points drop into the low 50s with a northwest wind gusting 15-20 mph much of the day Thursday. It will feel a lot more like fall! && .LONG TERM /THURSDAY NIGHT THROUGH MONDAY/... At the start of the long term, our two major players during the period will already be fairly close by... Canadian high pressure will be centered over the eastern Great Lakes, while Hurricane Lee will likely be several hundred miles southeast of Cape Hatteras. Guidance remains in relatively good agreement holding the high pressure over the region, with the upper level trough over the area likely to send Lee almost due northward in the general direction of Atlantic Canada or far eastern New England. It would make its closest approach Friday night, when winds may get relatively breezy from the north, then shifting northwest Saturday, and clouds may move overhead from the outer cirrus shield. Thereafter, as the storm continues northward, winds would relax and sunshine would become dominant again Sunday. This of course depends on Lee being partly picked up by the first upper trough Thursday night into Friday, then a second trough carrying it the rest of the way Saturday night into Sunday. So many days away, its a complex scenario which, while agreement remains good, can still go wrong this far out. While odds of impacts other than high surf, dangerous rips and some clouds remain low, they are not zero, and everyone should continue to monitor the progress of Lee as it approaches the region. A shift in one or both trough's trajectories could alter the storms direction in an undesirable manner. Otherwise, assuming the storm does progress in a general way as currently depicted by most guidance, the long term looks pretty tranquil, as the high pressure will dominate with cooler temperatures (mostly 70s to near 80 during the day, 50s at night), clear to partly cloudy skies outside of any hurricane outflow cirrus, and relatively low humidity. By early next week, another frontal boundary may move into the region, but still a lot of uncertainty there. && .AVIATION /19Z MONDAY THROUGH SATURDAY/... The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas. The rest of this afternoon (through 00Z)...Mainly VFR. Scattered showers and thunderstorms will bring locally heavy rainfall along with periods of MVFR/IFR conditions. Wind favoring the northwest 6 knots or less. Medium confidence. Tonight...Starting off VFR in the evening, with MVFR/IFR conditions developing overnight. Vis restrictions from fog is most most likely, though cannot rule out low stratus either. Variable wind 5 knots or less. Medium confidence. Tuesday...Areas of low clouds and fog possible for a time in the morning, then mainly VFR through the day with an isolated shower or thunderstorm possible. Sub-VFR conditions should develop at night with also the arrival of some showers and thunderstorms overnight. Light and variable or northeast winds around 5 knots to start becoming southerly 5-10 knots. Low confidence. Outlook... Wednesday...Sub-VFR likely in the morning with intervals of IFR possible in showers and possible t-storms. Likely some improvement back towards VFR in the afternoon but risk of showers and storms resulting in shorter-term degradations will remain possible through the rest of the day. Winds southerly 5-10 kts becoming NW late. Low confidence. Thursday...VFR. Wind NW 10 kts with gusts 15-20 kts. High confidence. Friday...VFR most likely, depending on Hurricane Lee's track. Wind N 10-15 kts with gusts 20-25 kts. Moderate confidence. Saturday...VFR most likely, depending on Hurricane Lee's track. Wind N to NW 10-15 kts with gusts 20-25 kts. Moderate confidence. && .MARINE... Variable winds around 5 to 10 knots through the overnight hours. Waves on our ocean waters are expected to be 2 to 3 feet, with waves on Delaware Bay at 2 feet or less. Winds remain light and variable through Tuesday morning before becoming more predominant out of the southeast around 5 to 10 knots. Small Craft Advisory possible on the ocean zones as seas may build to around 5 feet due to building swells from distant Hurricane Lee as it approaches within several hundred miles of the Bahamas. Outlook... Wednesday...Small Craft Advisory conditions likely due to seas building to 5-7 ft. Winds S 5-10 kts becoming NW late. Showers and thunderstorms possible. Thursday...Small Craft Advisory conditions likely due to seas building to 6-10 ft. Winds NW 10-15 kts with gusts 20-25 kts. Friday...Small Craft Advisory conditions likely due to seas of 7-11 ft and N winds gusting up to 30 kts. This is dependent on the track of Hurricane Lee, which may influence conditions further. Saturday...Small Craft Advisory conditions likely due to to seas of 6-10 ft and NW winds gusting up to 30 kts. This is dependent on the track of Hurricane Lee, which may influence conditions further. Rip Currents... A variable wind 5 to 10 MPH this morning is expected to become southerly in the afternoon along the coasts of Delaware and New Jersey. Breaking waves are forecast to be around 2 feet with a long period southeast swell (around 12 to 14 seconds). The long period swell will bring a MODERATE risk for the development of dangerous rip currents today. A variable wind 5 to 10 MPH on Tuesday morning is anticipated to become southeast to south in the afternoon. Breaking waves should be 2 to 3 feet. A long period southeast swell (around 12 to 14 seconds) is likely to continue. As the breaking waves increase and the long period swell persists, we will raise the risk for the development of dangerous rip currents to HIGH for Tuesday. && .PHI WATCHES/WARNINGS/ADVISORIES... PA...None. NJ...None. DE...None. MD...None. MARINE...None. && SYNOPSIS...MJL/RCM NEAR TERM...MJL SHORT TERM...RCM LONG TERM...RCM AVIATION...MJL/RCM MARINE...MJL/RCM
Hazardous Weather Outlook National Weather Service Mount Holly NJ 0456 PM EDT Mon Sep 11 2023 DEZ001-122056- New Castle- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for New Castle County in Delaware. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ002-122056- Kent- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Kent County in Delaware. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ003-122056- Inland Sussex- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for inland portions of Sussex County in Delaware. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ004-122056- Delaware Beaches- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for the Atlantic coastal portions of Sussex County in Delaware. .DAY ONE...Through tonight. There is a moderate risk of rip currents. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ054-122056- Carbon- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Carbon County in Pennsylvania. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ055-122056- Monroe- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Monroe County in Pennsylvania. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ060-122056- Berks- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Berks County in Pennsylvania. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ061-122056- Lehigh- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Lehigh County in Pennsylvania. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ062-122056- Northampton- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Northampton County in Pennsylvania. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ070-122056- Delaware- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Delaware County in Pennsylvania. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ071-122056- Philadelphia- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Philadelphia County in Pennsylvania. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ101-122056- Western Chester- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for western Chester County in Pennsylvania. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ102-122056- Eastern Chester- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for eastern Chester County in Pennsylvania. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ103-122056- Western Montgomery- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for western Montgomery County in Pennsylvania. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ104-122056- Eastern Montgomery- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for eastern Montgomery County in Pennsylvania. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ105-122056- Upper Bucks- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for upper Bucks County in Pennsylvania. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ106-122056- Lower Bucks- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for lower Bucks County in Pennsylvania. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ001-122056- Sussex- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Sussex County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Several instances of flooding are possible on Wednesday, especially in urban and poor-drainage areas and near particularly vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ007-122056- Warren- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Warren County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ008-122056- Morris- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Morris County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Several instances of flooding are possible on Wednesday, especially in urban and poor-drainage areas and near particularly vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ009-122056- Hunterdon- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Hunterdon County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ010-122056- Somerset- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Somerset County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Several instances of flooding are possible on Wednesday, especially in urban and poor-drainage areas and near particularly vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ012-122056- Middlesex- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Middlesex County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Several instances of flooding are possible on Wednesday, especially in urban and poor-drainage areas and near particularly vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ013-122056- Western Monmouth- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for western Monmouth County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Several instances of flooding are possible on Wednesday, especially in urban and poor-drainage areas and near particularly vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ014-122056- Eastern Monmouth- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for eastern Monmouth County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. There is a moderate risk of rip currents. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Several instances of flooding are possible on Wednesday, especially in urban and poor-drainage areas and near particularly vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ015-122056- Mercer- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Mercer County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ016-122056- Salem- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Salem County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ017-122056- Gloucester- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Gloucester County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ018-122056- Camden- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Camden County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ019-122056- Northwestern Burlington- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for northwestern Burlington County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ020-122056- Ocean- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for inland portions of Ocean County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Several instances of flooding are possible on Wednesday, especially in urban and poor-drainage areas and near particularly vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ021-122056- Cumberland- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Cumberland County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ022-122056- Atlantic- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for inland portions of Atlantic County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ023-122056- Cape May- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Cape May County excluding the Atlantic coast in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ024-122056- Atlantic Coastal Cape May- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for the Atlantic coastal portions of Cape May County in New Jersey. .DAY ONE...Through tonight. There is a moderate risk of rip currents. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ025-122056- Coastal Atlantic- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for coastal portions of Atlantic County in New Jersey. .DAY ONE...Through tonight. There is a moderate risk of rip currents. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Large breaking waves are expected to result in dangerous swimming conditions in the surf zone on Wednesday. Localized beach erosion is possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ026-122056- Coastal Ocean- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for coastal portions of Ocean County in New Jersey. .DAY ONE...Through tonight. There is a moderate risk of rip currents. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Several instances of flooding are possible on Wednesday, especially in urban and poor-drainage areas and near particularly vulnerable small creeks and streams. Large breaking waves are expected to result in dangerous swimming conditions in the surf zone on Wednesday. Localized beach erosion is possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ027-122056- Southeastern Burlington- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for southeastern Burlington County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ012-122056- Kent MD- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Kent County in Maryland. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ015-122056- Queen Annes- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Queen Annes County in Maryland. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ019-122056- Talbot- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Talbot County in Maryland. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ020-122056- Caroline- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for Caroline County in Maryland. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ430-122056- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for upper Delaware Bay. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ431-122056- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for lower Delaware Bay. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ450-122056- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Monmouth County out 20 nm. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Gale-force winds and/or very rough seas are forecast on Thursday. Gale-force winds and/or very rough seas are forecast on Friday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ451-122056- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Ocean County out 20 nm. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Large breaking waves are expected to result in dangerous swimming conditions in the surf zone on Wednesday. Localized beach erosion is possible. Gale-force winds and/or very rough seas are forecast on Thursday. Storm-force winds and/or very high seas are expected on Friday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ452-122056- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Atlantic County out 20 nm. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Large breaking waves are expected to result in dangerous swimming conditions in the surf zone on Wednesday. Localized beach erosion is possible. Gale-force winds and/or very rough seas are forecast on Thursday. Storm-force winds and/or very high seas are expected on Friday. Gale-force winds and/or very rough seas are forecast on Saturday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ453-122056- Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Cape May County out 20 nm. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Gale-force winds and/or very rough seas are forecast on Thursday. Gale-force winds and/or very rough seas are forecast on Friday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ454-122056- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to the mouth of Delaware Bay out 20 nm. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Gale-force winds and/or very rough seas are forecast on Thursday. Gale-force winds and/or very rough seas are forecast on Friday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ455-122056- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 0456 PM EDT Mon Sep 11 2023 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Sussex County out 20 nm. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Gale-force winds and/or very rough seas are forecast on Thursday. Gale-force winds and/or very rough seas are forecast on Friday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures.
Special Weather Statement
National Weather Service Mount Holly NJ
430 PM EDT Mon Sep 11 2023
NJZ008-112100-
Morris NJ-
430 PM EDT Mon Sep 11 2023
...A strong thunderstorm will impact portions of east central Morris
County through 500 PM EDT...
At 429 PM EDT, Doppler radar was tracking a strong thunderstorm over
Parsippany, or near Morristown, moving southeast at 10 mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Morristown, Madison, Florham Park, East Hanover, Chatham, Boonton,
Morris Plains, Mountain Lakes, Parsippany and Hanover Township.
This includes the following highways...
Interstate 80 in New Jersey between mile markers 42 and 48.
Interstate 287 in New Jersey between mile markers 37 and 47.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4090 7434 4088 7434 4086 7432 4082 7434
4079 7437 4076 7438 4075 7436 4073 7437
4081 7448 4093 7442 4091 7430 4090 7427
TIME...MOT...LOC 2029Z 293DEG 9KT 4085 7440
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
POPreliminary Local Storm Report
National Weather Service Mount Holly NJ
446 PM EDT Mon Sep 11 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0255 PM Tstm Wnd Dmg 2 NE Dagsboro 38.57N 75.22W
09/11/2023 Sussex DE Public
Several public reports of trees down along
Adams Road in Dagsboro. Time estimated from
radar.
&&
DeSilvaPreliminary Local Storm Report
National Weather Service Mount Holly NJ
510 PM EDT Mon Sep 11 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0255 PM Tstm Wnd Dmg 2 NE Dagsboro 38.57N 75.22W
09/11/2023 Sussex DE Broadcast Media
Report of several trees snapped and uprooted
along a wooded area of Adams Road with
several houses receiving roof damage and a
couple sheds collapsed. Time estimated from
radar. Tornado possible.
&&
DeSilvaSpecial Weather Statement
National Weather Service Mount Holly NJ
511 PM EDT Mon Sep 11 2023
DEZ001-NJZ016-112145-
New Castle DE-Salem NJ-
511 PM EDT Mon Sep 11 2023
...A strong thunderstorm will impact portions of northern New Castle
and northwestern Salem Counties through 545 PM EDT...
At 511 PM EDT, Doppler radar was tracking a strong thunderstorm over
Pike Creek, or near Newark, moving east at 30 mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Wilmington, Newark, Pennsville, Carneys Point, Elsmere, New Castle,
Penns Grove, Salem, Delaware City, Newport, Greenville, Stanton,
North Star, Bear, Delaware Memorial Bridge, Port Penn, Wilmington
Manor, Pike Creek, Hockessin and Glasgow.
This includes the following highways...
New Jersey Turnpike near exit 1.
Interstate 95 in Delaware between mile markers 0 and 18.
Interstate 295 in New Jersey between mile markers 0 and 7.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3978 7574 3980 7571 3979 7553 3970 7534
3951 7557 3964 7579 3967 7579
TIME...MOT...LOC 2111Z 286DEG 26KT 3970 7569
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
POPreliminary Local Storm Report
National Weather Service Mount Holly NJ
528 PM EDT Mon Sep 11 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0255 PM Tstm Wnd Dmg 3 ENE Dagsboro 38.57N 75.21W
09/11/2023 Sussex DE Public
Photos of several uprooted trees along Piney
Neck Road at Marinas at Peppers Creek. Time
estimated from radar.
&&
DeSilvaThe Philadelphia radar (KDIX), 59 km away, was scanning. The volume nearest the first event began at 22:03 UTC.
1 flash flood. Local standard time, as filed.
US Route 9 became impassable due to flooding around Bordentown Avenue in Sayreville.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New Jersey in 2023Every state in 2023This day in weather historyWarnings in New Jersey, September 2023
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1126253.