A line of thunderstorms affected the Delmarva peninsula late on May 4. A frontal boundary had lifted through portions of the mid-Atlantic that day, creating a sharp divide between a cool and stable air mass to the north and better instability further south.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS PHI wrote it up.
A line of thunderstorms affected the Delmarva peninsula late on May 4. A frontal boundary had lifted through portions of the mid-Atlantic that day, creating a sharp divide between a cool and stable air mass to the north and better instability further south. A couple of convective line segments developed in the warm sector, producing widespread damage over Virginia and eventually moving east-northeast into Delmarva before moving offshore.
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 May 4, 2:44 PM EST, 3 hours 41 minutes earlier.
Area Forecast Discussion National Weather Service Mount Holly NJ 344 PM EDT Tue May 4 2021 .SYNOPSIS... In the wake of a warm front on Tuesday, a cold front will cross the region on Wednesday. High pressure builds through the region on Thursday. A trough may cross over the region on Friday. Another low pressure system may affect the region Sunday into Monday. && .NEAR TERM /THROUGH WEDNESDAY NIGHT/... No significant changes with the near term forecast for the late afternoon update. Warm front has lifted north of our region as of mid afternoon. Earlier low stratus is eroding, but as we see clearing, we are seeing cumulus development in the warm sector. Storms over western VA this afternoon should make progress towards our region by early evening. It looks like the prime period for this round of showers and storms will be between 21 and 04 Z/5 PM and Midnight EDT. Model soundings are depicting deeper instability than previously expected. Not sure we will realize quite as much low level heating as what the NAM is depicting due to the expansive cumulus development that we are seeing in our area. Additionally, I am still concerned that with the mid level short wave ridge over our region during this time, the subsidence could limit the coverage of storms. None the less, those factors may be a moot point if an MCS can become organized before progressing this far east. The primary hazard with any storms with this round will be winds, with the potential for damaging winds being the highest in Delmarva. Small hail is possible, but instability may be a bit more limited within the hail growth zone, so the threat for severe hail looks to be limited. Low level flow will likely be relatively weak throughout the event, so the risk for tornadoes also appears to be limited. Once we get through this round of showers and storms, we should have a lull in the rain until late tonight. The latest models are depicting less separation between the prefrontal trough and the cold front. Thus, there may not be much separation between what we were thinking would be the second and third rounds of rain late tonight into tomorrow. As far as hazards tomorrow, some strong wind gusts are possible and localized downpours, but so long as the front arrives as early as most guidance depicts it (shifting off shore by 21Z for most models), we should have a limited threat for severe weather. The ECMWF has slowed down with the front again, but it appears to be an outlier, so have gone with a blend of the NAM and CMC for the timing of the front. Temperatures tomorrow will be highly dependent on the timing of the front. For the most part, it looks like most areas will be in the 60s and lower 70s before the front arrives. However, across southern Delaware, which should be the last to see the cold front, temperatures could get into the lower 80s. Wednesday night, with cold air advection well underway, lows will be mostly in the 40s, though in the southern Poconos, temperatures could drop into the upper 30s. However, it looks like the winds will stay up enough to preclude any frost development. && .SHORT TERM /THURSDAY THROUGH FRIDAY/... On Thursday, a long wave upper trough axis will be pivoting toward the Mid-Atlantic region the an associated jet streak moving just offshore. Resulting height falls and diffluence aloft will lead to increasing clouds throughout the day, but the forecast should remain dry given the dry antecedent (post-frontal) airmass in place. The pressure gradient and thus winds will lessen throughout the day, but breezy conditions can be expected at least through the morning hours with northwesterly winds gusting up to 20-25 mph. Thursday will also be the first of likely several below normal temperature days with highs only topping out in the mid to upper 60s. Expect light winds and lows in the 40s Thursday night. The main trough axis will arrive sometime Friday along with the maximum height falls. Guidance appears fairly consistent bringing as band of showers through the region during the afternoon or evening hours, so we've kept widespread chance to low end likely PoP for this period. Given the anomalously cold temperatures aloft, I wouldn't be surprised to see some small hail or isolated lightning with this activity. Temperatures will continue to remain below normal with highs in the low to mid 60s. && .LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/... The long term period begins late Friday with the long wave upper trough axis moving offshore into the weekend and northwest flow aloft becoming more zonal into early next week. At the surface, high pressure will build across the western Atlantic with a frontal boundary positioned south of the area. A few waves of surface low pressure are likely to move quickly along this boundary, especially into early next week as a few perturbations move through the zonal flow aloft. This will result in a few periods of showers or thunderstorms, likely favoring a diurnal trend in PoP as instability is climatologically higher in the afternoon and evening this time of year. The upper troughing to our north and stalled boundary just to our south will result in a continued period of temperatures about 5- 10 degrees below normal. && .AVIATION /20Z TUESDAY THROUGH SUNDAY/... The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas. Through 06Z...Mostly VFR conditions are expected until showers and storms move into our region. As storms move in, brief MVFR and IFR conditions are possible. The prime period for this round of storms looks to be after 21Z. In the wake of the storms, expect low clouds to fill in, with ceilings mostly between 800 and 1500 ft AGL. Winds will be southerly or westerly south of the front with speeds 5 to 15 kt. Moderate confidence on the overall pattern, but low confidence if any storms will directly impact a TAF site. Late tonight...Ceilings will remain in the IFR and lower MVFR range through the overnight hours. Some visibility restrictions are possible with BR and showers, but expect ceilings to be the controlling factor. Winds becoming light and variable. Moderate confidence. Wednesday...Starting with ceilings between IFR and lower MVFR range. A round of showers and storms are possible between 12 and 21Z, but expect limited additional impacts from the showers. Winds starting light and variable, briefly becoming southerly 5 to 10 kt, then expect an abrupt shift to westerly and northwesterly of 10 to 15 kt with the cold front in the afternoon. Moderate confidence. Outlook... Wednesday night...Conditions improving to VFR. Northwesterly winds 5 to 15 kt with gusts up to 20 kt. Moderate confidence. Thursday...VFR. NW winds 10-15 kt with gusts up to 20 kt decreasing to around 5-10 kt after 18Z. High confidence. Friday...Sub-VFR possible in SHRA. LGT/VRB winds, becoming W less than 10 kt in the afternoon. Moderate confidence. Saturday...Mostly VFR. NW winds 10-15 kt with gusts up to 20 kt decreasing after 21Z. High confidence. && .MARINE... Winds and seas should stay below SCA criteria tonight and tomorrow. However, higher gusts will be possible in the vicinity of scattered thunderstorms this evening. On Wednesday afternoon, an abrupt shift to westerly or northwesterly winds is expected. Gusts could exceed 25 kt when this occurs. Outlook... Wednesday night...Gusts near or above 25 kt across the waters, but not confident if it will be widespread or prolonged enough for an SCA, so will hold off on issuing an SCA for now. Thursday...Lingering SCA conditions possible in the morning then sub- SCA in the afternoon. Friday...Sub-SCA conditions. VSBY restrictions in showers. Saturday...SCA conditions possible with gusts of 20-25 kt. && .PHI WATCHES/WARNINGS/ADVISORIES... PA...None. NJ...None. DE...None. MD...None. MARINE...None. && Synopsis...Johnson Near Term...Johnson Short Term...Staarmann Long Term...Staarmann Aviation...Johnson/MPS/Staarmann Marine...Johnson/MPS/Staarmann
Hazardous Weather Outlook National Weather Service Mount Holly NJ 0259 PM EDT Tue May 04 2021 DEZ001-051859- New Castle- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. DEZ002-051859- Kent- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. DEZ003-051859- Inland Sussex- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. DEZ004-051859- Delaware Beaches- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for the Atlantic coastal portions of Sussex County in Delaware. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. PAZ054-051859- Carbon- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. PAZ055-051859- Monroe- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. PAZ060-051859- Berks- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. PAZ061-051859- Lehigh- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. PAZ062-051859- Northampton- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. PAZ070-051859- Delaware- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. PAZ071-051859- Philadelphia- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. PAZ101-051859- Western Chester- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. PAZ102-051859- Eastern Chester- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. PAZ103-051859- Western Montgomery- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. PAZ104-051859- Eastern Montgomery- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. PAZ105-051859- Upper Bucks- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. PAZ106-051859- Lower Bucks- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. NJZ001-051859- Sussex- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for Sussex County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. NJZ007-051859- Warren- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. NJZ008-051859- Morris- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for Morris County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. NJZ009-051859- Hunterdon- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for Hunterdon County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. NJZ010-051859- Somerset- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for Somerset County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. NJZ012-051859- Middlesex- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for Middlesex County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. NJZ013-051859- Western Monmouth- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for western Monmouth County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. NJZ014-051859- Eastern Monmouth- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for eastern Monmouth County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. NJZ015-051859- Mercer- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for Mercer County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. NJZ016-051859- Salem- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. NJZ017-051859- Gloucester- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. NJZ018-051859- Camden- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. NJZ019-051859- Northwestern Burlington- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. NJZ020-051859- Ocean- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for inland portions of Ocean County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. NJZ021-051859- Cumberland- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. NJZ022-051859- Atlantic- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. NJZ023-051859- Cape May- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. NJZ024-051859- Atlantic Coastal Cape May- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for the Atlantic coastal portions of Cape May County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. NJZ025-051859- Coastal Atlantic- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for coastal portions of Atlantic County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. NJZ026-051859- Coastal Ocean- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for coastal portions of Ocean County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. NJZ027-051859- Southeastern Burlington- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. MDZ012-051859- Kent MD- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for Kent County in Maryland. .DAY ONE...Through tonight. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. MDZ015-051859- Queen Annes- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for Queen Annes County in Maryland. .DAY ONE...Through tonight. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. MDZ019-051859- Talbot- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for Talbot County in Maryland. .DAY ONE...Through tonight. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. MDZ020-051859- Caroline- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for Caroline County in Maryland. .DAY ONE...Through tonight. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. ANZ430-051859- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. ANZ431-051859- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 0259 PM EDT Tue May 04 2021 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...Wednesday through Monday. 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. ANZ450-051859- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Monmouth County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. ANZ451-051859- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Ocean County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. ANZ452-051859- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Atlantic County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. ANZ453-051859- Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Cape May County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. ANZ454-051859- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to the mouth of Delaware Bay out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. ANZ455-051859- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 0259 PM EDT Tue May 04 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Sussex County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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.
Special Weather Statement
National Weather Service Mount Holly NJ
650 PM EDT Tue May 4 2021
MDZ019-020-042330-
Talbot-Caroline-
650 PM EDT Tue May 4 2021
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CENTRAL TALBOT AND
SOUTHERN CAROLINE COUNTIES...
At 650 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Tilghman Island to near University
Of Maryland Center For Environmental Studies. Movement was east at 55
mph.
Wind gusts up to 50 mph and half inch hail are possible with these
storms.
Locations impacted include...
Easton, Federalsburg, Trappe, Preston, Oxford, Tanyard, Harmony,
Smithville, Agner, Matthews, Choptank, Hambleton and Windyhill.
If outdoors, consider seeking shelter inside a building.
LAT...LON 3875 7634 3873 7630 3875 7630 3877 7625
3873 7624 3878 7623 3888 7573 3865 7572
3869 7577 3870 7590 3866 7596 3860 7599
3857 7604 3869 7619 3867 7620 3871 7622
3870 7623 3873 7632 3867 7634 3868 7635
TIME...MOT...LOC 2250Z 248DEG 46KT 3868 7633 3852 7616
JEOThe Dover AFB radar (KDOX), 26 km away, was scanning. The volume nearest the first event began at 23:22 UTC.
1 thunderstorm wind. Local standard time, as filed.
Tree limbs downed onto wires caused a power outage near Atlanta Rd. Time estimated from radar.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Delaware in 2021Every state in 2021This day in weather historyWarnings in Delaware, May 2021
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: 947482.