Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 287, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 12, 2023, 4:37 PM EDT for New Castle County, Delaware; Chester County, Delaware County, Pennsylvania. It was in force for 38 min. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 12, 2023, 4:37 PM EDT (20:37 UTC)
- Expired
- Aug 12, 2023, 5:15 PM EDT
- In force
- 38 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties New Castle County, DE, Chester County, PA, Delaware County, PA
The radar
The Philadelphia radar (KDIX), 97 km from the middle of the area, began a volume at 20:38 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 12, 4:39 PM EDT | TSTM WND DMG | Newlin Twp, PA | Trees and Wires down on Route 842 and Cannery Road in Newlin. Time estimated from radar. |
| Aug 12, 4:43 PM EDT | TSTM WND DMG | 1 Ene Newlin Twp, PA | Trees and wires down on Unionville Wawaset Road. Time estimated from radar. |
| Aug 12, 4:46 PM EDT | TSTM WND DMG | 1 Nnw East Marlborough, PA | Tree down on Unionville Wawaset Road. Time estimated from radar. |
| Aug 12, 5:00 PM EDT | TSTM WND DMG | 1 Ne East Marlborough T, PA | Report of tree down into house on Marlborough Springs Road. Time estimated from radar. |
| Aug 12, 5:08 PM EDT | TSTM WND DMG | 2 Ene Chadds Ford Twp, PA | Public sends in picture of downed tree on Hickory Mill Road. Time estimated from radar. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched 5 storm reports to this severe thunderstorm warning; the first came 2 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 8.6 hours before the alert went out and 186 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.
- Mixed-layer CAPE
- 176 J/kg
- Mixed-layer CIN
- -108 J/kg
- Mixed-layer LCL
- 1236 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
541
WUUS51 KPHI 122037
SVRPHI
DEC003-PAC029-045-122115-
/O.NEW.KPHI.SV.W.0287.230812T2037Z-230812T2115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
437 PM EDT Sat Aug 12 2023
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northeastern New Castle County in northern Delaware...
Central Chester County in southeastern Pennsylvania...
Southern Delaware County in southeastern Pennsylvania...
* Until 515 PM EDT.
* At 437 PM EDT, a severe thunderstorm was located over Marshallton,
or near West Chester, moving southeast at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to
roofs, siding, trees, and power lines is possible.
* Locations impacted include...
Wilmington, West Chester, Chester, Pennsville, Westtown,
Downingtown, Elsmere, Kennett Square, New Castle, Newport, Arden,
Cheyney, Talleyville, Elam, Marshallton, Lima, Chelsea, Ashland,
Greenville and Delaware Memorial Bridge.
This includes the following highways...
Interstate 95 in Pennsylvania between mile markers 0 and 7.
Interstate 95 in Delaware between mile markers 12 and 23.
Interstate 476 in Pennsylvania between mile markers 0 and 1.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
In addition to large hail and damaging winds, frequent cloud to
ground lightning is occurring with this storm. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.
&&
LAT...LON 4005 7571 3985 7528 3984 7536 3977 7546
3972 7548 3969 7551 3967 7551 3966 7549
3965 7548 3967 7552 3990 7584
TIME...MOT...LOC 2037Z 306DEG 19KT 3994 7571
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hoeflich2 follow-up statements
132
WWUS51 KPHI 122102
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
502 PM EDT Sat Aug 12 2023
DEC003-PAC029-045-122115-
/O.CON.KPHI.SV.W.0287.000000T0000Z-230812T2115Z/
New Castle DE-Chester PA-Delaware PA-
502 PM EDT Sat Aug 12 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR NORTH CENTRAL NEW CASTLE...SOUTHEASTERN CHESTER AND SOUTHWESTERN
DELAWARE COUNTIES...
At 502 PM EDT, a severe thunderstorm was located near Kennett Square,
or near West Chester, moving southeast at 15 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Wilmington, West Chester, Westtown, Elsmere, Kennett Square, Newport,
Arden, Cheyney, Talleyville, Elam, Chelsea, Ashland, Greenville,
Concordville, Hockessin, Marshallton, Chester Township, West Goshen,
Brookhaven and Chester Heights.
This includes the following highways...
Interstate 95 in Pennsylvania between mile markers 0 and 1.
Interstate 95 in Delaware between mile markers 12 and 23.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3986 7579 3999 7563 3987 7538 3971 7557
3978 7568
TIME...MOT...LOC 2102Z 314DEG 14KT 3988 7565
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hoeflich866
WWUS51 KPHI 122110
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
510 PM EDT Sat Aug 12 2023
DEC003-PAC029-045-122120-
/O.EXP.KPHI.SV.W.0287.000000T0000Z-230812T2115Z/
New Castle DE-Chester PA-Delaware PA-
510 PM EDT Sat Aug 12 2023
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL NEW CASTLE...
SOUTHEASTERN CHESTER AND SOUTHWESTERN DELAWARE COUNTIES WILL EXPIRE
AT 515 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
LAT...LON 3986 7579 3999 7563 3987 7538 3971 7557
3978 7568
TIME...MOT...LOC 2110Z 306DEG 19KT 3989 7566
$$
HoeflichWhat forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 12, 3:08 PM EDT, 1 hour 29 minutes earlier.
Area forecast discussion, Aug 12, 3:08 PM EDT, 1 hour 29 minutes before
Area Forecast Discussion National Weather Service Mount Holly NJ 308 PM EDT Sat Aug 12 2023 .SYNOPSIS... A cold front arrives into our area later tonight then settles south and eastward Sunday. A warm front then arrives later Monday with a stronger cold front crossing the area Tuesday. High pressure then builds in Wednesday into Thursday. The next cold front is scheduled to move through later Friday with high pressure arriving for Saturday. && .NEAR TERM /THROUGH SUNDAY/... Scattered showers and thunderstorms have formed early this afternoon in response to a passing shortwave causing lift in a very warm and unstable airmass. The best chance for convection should be mainly north of a ACY to ILG line. There will be two shortwaves passing through the region, one during the late afternoon, then a second shortwave overnight which will likely bring more convection through the region between 00Z and 06Z. This second batch of storms likely has less instability to work with, but an isolated severe storm can't be ruled out overnight either. SPC has placed the Poconos and Sussex county NJ in a Enhanced Risk of severe thunderstorms for this afternoon and evening, and a Slight Risk across northern NJ into the Lehigh Valley. Locally heavy rain remains a risk, but primarily in the far north, and storm motion should generally keep rainfall relatively limited today, with training the most likely reason to get any flooding. The cold front from Saturday night will largely wash out across the region Sunday morning, eventually departing offshore late Sunday. Given westerly flow, the seabreeze won't make it too far inland. Otherwise, another warm and humid day on Sunday with temperatures climbing into the upper 80s/low 90s with dewpoints in the upper 60s/low 70s. && .SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY NIGHT/... Increasing more humid along with a period of showers and thunderstorms. A trailing front which continues to look weak and potentially even dissipating across our area may still focus a shower or thunderstorm Sunday evening mainly across southern Delaware. Otherwise, clouds should persist through the night. As we go through Monday, it looks to turn more active again. An upper-level trough is forecast to gradually shift eastward from the Midwest and Great Lakes. The guidance is in decent agreement that this trough has a positive tilt as it shifts eastward. Downstream moisture and thermal advections will assist in a more humid air mass working northward across our area especially as a warm front moves in. While a shower or thunderstorm is possible with the uptick in moisture/thermal advections and incoming warm front, the forcing overall looks on the weaker side initially. Our attention then turns to a stronger shortwave that ejects out ahead of the main through and moves across our area Monday afternoon and evening. This shortwave could be convectively enhanced with an accompanied strengthening low-level jet. Showers and thunderstorms should be on the increase associated with this feature and with some increase in shear, convection may organize into a cluster/MCS with some potential for locally strong/damaging winds. The magnitude of the severe thunderstorm threat will depend on the degree of instability, timing and low to mid level lapse rates. The greatest instability will be south of the warm front. The timing overall looks to be later Monday afternoon and Monday night for the greater chances for showers and thunderstorms. A expansive plume of 2+ inches of precipitable water is forecast to be in place Monday ahead of the upper-level trough and cold front. The intersection of an initial southwesterly low-level jet with a northward moving warm front may enhance locally heavy rainfall especially where convection becomes more organized later Monday afternoon and Monday night. While there continues to be some flash flood threat especially in areas that have been wet the last few weeks, the placement of the warm front will be key as instability to its north looks to be minimal. The convection should tend to settle down overnight Monday night as the main shortwave shifts eastward. As low pressure tracks to our north though, a cold front looks to cross our area Tuesday. While Tuesday should be trending drier as time wears on, still cannot rule out some lingering convection until the cold front clears the coast and then there is also the positively tilted upper-level trough arriving. The better drying looks to take place Tuesday night as the precipitable water values drop significantly and the trough aloft weakens. && .LONG TERM /WEDNESDAY THROUGH SATURDAY/... Summary...Cooler and less humid to start but then becoming warmer and more humid again. Synoptic Overview...The tailend of a weakening upper-level trough is forecast to be sliding across our region Wednesday. The flow aloft in the East then turns more zonal into Thursday before the next upper-level trough across the Midwest and upper Great Lakes shifts eastward. Some guidance shows this trough taking on a negative tilt as it lifts across the Northeast Friday then well to our north Saturday. At the surface, high pressure builds in Wednesday before shifting offshore Thursday. A warm front may lift northward across our area later Thursday, followed by a cold front later Friday. Surface high pressure then arrives for Saturday. For Wednesday and Thursday...As the tailend of a weakening upper- level trough shifts across our area Wednesday, surface high pressure is currently forecast to build in. This will deliver a cooler and drier air mass therefore dew points will be in the more comfortable range. This looks to be short in duration though as high pressure shifts eastward, with a return flow setting up into Thursday. Well ahead of an upper-level trough in the Midwest, a warm front is forecast to lift across our area during Thursday. This will usher in higher dew points as low-level warm air and moisture advections increase. Cannot rule out a shower or thunderstorm with the warm front, but overall forcing looks weak and we then await for the cold front to arrive. Temperatures Thursday are forecast to be several degrees warmer than Wednesday and it will also be turning more humid. For Friday and Saturday...The details during this time frame will depend on the timing and amplitude of an incoming upper-level trough. Some guidance shows this trough taking on a negative tilt which typically strengthens the wind fields and also the forcing for ascent. This upper-level feature will drive surface low pressure to our north, however an associated cold front is currently forecast to cross our area later Friday. The magnitude of the shear and instability will determine the extent of convection ahead of and with the incoming cold front. This upper-level trough looks progressive therefore it lifts to our north into Saturday with high pressure at the surface to build in. It will be very warm and humid ahead of this cold front. && .AVIATION /19Z SATURDAY THROUGH THURSDAY/... The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas. Through 00Z this evening...generally VFR. Widely scattered thunderstorms will briefly drop vsby and cigs to MVFR levels. Brief intervals of IFR are possible with scattered stronger thunderstorms most likely to affect the Lehigh Valley, Poconos, and northern NJ. Winds SSW increasing to around 10 kts with gusts up to 20 kts. Tonight...generally VFR, but with brief intervals of MVFR and possibly IFR vsby with scattered stronger thunderstorms. Again, best chance of impacts is in the Lehigh Valley, Poconos, and northern NJ. Winds mainly southerly around 5 kts. Sunday...VFR. Westerly winds around 10 kt. Outlook... Sunday Night...VFR overall. Winds becoming light and variable. Moderate confidence. Monday...A period of sub-VFR conditions, especially later in the afternoon and at night with some showers and thunderstorms. Light and variable winds becoming southeast to southwest around 10 knots. Low confidence. Tuesday...VFR overall. A few showers and thunderstorms are possible. Southwest to west winds increasing to 10-15 knots with gusts up to 20 knots, then diminishing to less than 10 knots at night. Low confidence. Wednesday and Thursday...VFR. Northwest to west winds 5-10 knots Wednesday, then southerly 5-10 knots Thursday. Moderate confidence. && .MARINE... Conditions will remain below Small Craft Advisory levels through tonight. Winds will be southerly at 10-15 kts with a few gusts up around 20 kts. Seas will be 2-4 ft. Main concern will be potential gusty thunderstorms this afternoon into tonight, with the highest risk over the waters north of Atlantic City NJ. Sunday...No marine headlines expected. Southwest winds around 10-15 kt. Seas 2 to 3 feet. Outlook... Sunday night and Monday...The conditions are anticipated to be below Small Craft Advisory criteria. Some thunderstorms expected later Monday. Tuesday through Thursday...The conditions are anticipated to be mainly below Small Craft Advisory criteria. Rip currents... Through this evening, southerly winds 10 to 15 mph with gusts up to 20 mph with breaking waves of 1 to 2 feet. There will also be a medium period southeast swell. As a result, there is a LOW risk for the development of dangerous rip currents at the New Jersey and Delaware beaches. On Sunday, winds remain parallel to the coast with south to southwest winds of 10 to 15 mph with gusts up to 20 mph. Once again, there will be a medium period southeast swell. There is a LOW risk for the development of dangerous rip currents at New Jersey and Delaware beaches. && .PHI WATCHES/WARNINGS/ADVISORIES... PA...None. NJ...None. DE...None. MD...None. MARINE...None. && SYNOPSIS...Gorse NEAR TERM...Franklin/RCM SHORT TERM...Gorse LONG TERM...Gorse AVIATION...Franklin/Gorse/RCM MARINE...Franklin/Gorse/RCM
Hazardous weather outlook, Aug 12, 4:27 PM EDT, 10 minutes before
Hazardous Weather Outlook National Weather Service Mount Holly NJ 0427 PM EDT Sat Aug 12 2023 DEZ001-132027- New Castle- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for New Castle County in Delaware. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. DEZ002-132027- Kent- 0427 PM EDT Sat Aug 12 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...Sunday through Friday. 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. DEZ003-132027- Inland Sussex- 0427 PM EDT Sat Aug 12 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...Sunday through Friday. 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. DEZ004-132027- Delaware Beaches- 0427 PM EDT Sat Aug 12 2023 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...Sunday through Friday. 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. PAZ054-132027- Carbon- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for Carbon County in Pennsylvania. .DAY ONE...Through tonight. Numerous severe thunderstorms are expected. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Sunday through Friday. 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. PAZ055-132027- Monroe- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for Monroe County in Pennsylvania. .DAY ONE...Through tonight. Numerous severe thunderstorms are expected. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Sunday through Friday. 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. PAZ060-132027- Berks- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for Berks County in Pennsylvania. .DAY ONE...Through tonight. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. PAZ061-132027- Lehigh- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for Lehigh County in Pennsylvania. .DAY ONE...Through tonight. Numerous severe thunderstorms are expected. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. PAZ062-132027- Northampton- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for Northampton County in Pennsylvania. .DAY ONE...Through tonight. Numerous severe thunderstorms are expected. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. PAZ070-132027- Delaware- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for Delaware County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. PAZ071-132027- Philadelphia- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for Philadelphia County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. PAZ101-132027- Western Chester- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for western Chester County in Pennsylvania. .DAY ONE...Through tonight. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. PAZ102-132027- Eastern Chester- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for eastern Chester County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. PAZ103-132027- Western Montgomery- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for western Montgomery County in Pennsylvania. .DAY ONE...Through tonight. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. PAZ104-132027- Eastern Montgomery- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for eastern Montgomery County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. PAZ105-132027- Upper Bucks- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for upper Bucks County in Pennsylvania. .DAY ONE...Through tonight. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. PAZ106-132027- Lower Bucks- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for lower Bucks County in Pennsylvania. .DAY ONE...Through tonight. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. NJZ001-132027- Sussex- 0427 PM EDT Sat Aug 12 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. Numerous severe thunderstorms are expected. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Sunday through Friday. 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. NJZ007-132027- Warren- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for Warren County in New Jersey. .DAY ONE...Through tonight. Numerous severe thunderstorms are expected. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Sunday through Friday. 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. NJZ008-132027- Morris- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for Morris County in New Jersey. .DAY ONE...Through tonight. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Sunday through Friday. 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. NJZ009-132027- Hunterdon- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for Hunterdon County in New Jersey. .DAY ONE...Through tonight. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. NJZ010-132027- Somerset- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for Somerset County in New Jersey. .DAY ONE...Through tonight. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. NJZ012-132027- Middlesex- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for Middlesex County in New Jersey. .DAY ONE...Through tonight. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. NJZ013-132027- Western Monmouth- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for western Monmouth County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. NJZ014-132027- Eastern Monmouth- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for eastern Monmouth County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. NJZ015-132027- Mercer- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for Mercer County in New Jersey. .DAY ONE...Through tonight. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. NJZ016-132027- Salem- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for Salem County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. NJZ017-132027- Gloucester- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for Gloucester County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. NJZ018-132027- Camden- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for Camden County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. NJZ019-132027- Northwestern Burlington- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for northwestern Burlington County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. NJZ020-132027- Ocean- 0427 PM EDT Sat Aug 12 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...Sunday through Friday. Several instances of flooding are possible on Monday, 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. NJZ021-132027- Cumberland- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for Cumberland County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. NJZ022-132027- Atlantic- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for inland portions of Atlantic County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. NJZ023-132027- Cape May- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for Cape May County excluding the Atlantic coast in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. NJZ024-132027- Atlantic Coastal Cape May- 0427 PM EDT Sat Aug 12 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 low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. NJZ025-132027- Coastal Atlantic- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for coastal portions of Atlantic County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. NJZ026-132027- Coastal Ocean- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for coastal portions of Ocean County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. NJZ027-132027- Southeastern Burlington- 0427 PM EDT Sat Aug 12 2023 This Hazardous Weather Outlook is for southeastern Burlington County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Several instances of flooding are possible on Monday, 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. MDZ012-132027- Kent MD- 0427 PM EDT Sat Aug 12 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...Sunday through Friday. 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. MDZ015-132027- Queen Annes- 0427 PM EDT Sat Aug 12 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...Sunday through Friday. 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. MDZ019-132027- Talbot- 0427 PM EDT Sat Aug 12 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...Sunday through Friday. 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. MDZ020-132027- Caroline- 0427 PM EDT Sat Aug 12 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...Sunday through Friday. 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. ANZ430-132027- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 0427 PM EDT Sat Aug 12 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...Sunday through Friday. 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. ANZ431-132027- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 0427 PM EDT Sat Aug 12 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...Sunday through Friday. 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. ANZ450-132027- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm- 0427 PM EDT Sat Aug 12 2023 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...Sunday through Friday. 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. ANZ451-132027- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm- 0427 PM EDT Sat Aug 12 2023 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...Sunday through Friday. 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. ANZ452-132027- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm- 0427 PM EDT Sat Aug 12 2023 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...Sunday through Friday. 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. ANZ453-132027- Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm- 0427 PM EDT Sat Aug 12 2023 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...Sunday through Friday. 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. ANZ454-132027- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm- 0427 PM EDT Sat Aug 12 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. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Sunday through Friday. 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. ANZ455-132027- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 0427 PM EDT Sat Aug 12 2023 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...Sunday through Friday. 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.
In the hours before
Special weather statement, Aug 12, 1:40 PM EDT, 2 hours 57 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
140 PM EDT Sat Aug 12 2023
NJZ017>019-027-121815-
Northwestern Burlington NJ-Camden NJ-Gloucester NJ-
Southeastern Burlington NJ-
140 PM EDT Sat Aug 12 2023
...A strong thunderstorm will impact portions of northern Camden,
north central Gloucester and west central Burlington Counties through
215 PM EDT...
At 140 PM EDT, Doppler radar was tracking a strong thunderstorm over
Lindenwold, or 7 miles southeast of Gloucester City, moving east at
30 mph.
HAZARD...Wind gusts up to 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Gloucester City, Cherry Hill, Evesham, Mount Laurel, Voorhees,
Medford, Lindenwold, Lumberton, Bellmawr, Mount Holly, Berlin,
Shamong, Magnolia, Westville, Brooklawn, Audubon Park,
Barclay-Kingston, Marlton, Erlton-Ellisburg and Greentree.
This includes the following highways...
New Jersey Turnpike between exits 3 and 4.
Interstate 76 in New Jersey between mile markers 0 and 1.
Interstate 295 in New Jersey between mile markers 26 and 40.
Atlantic City Expressway between mile markers 42 and 44.
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 3975 7508 3989 7513 4001 7479 3976 7469
TIME...MOT...LOC 1740Z 253DEG 25KT 3982 7501
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
MLBSpecial weather statement, Aug 12, 2:37 PM EDT, 2 hours before
Special Weather Statement
National Weather Service Mount Holly NJ
237 PM EDT Sat Aug 12 2023
NJZ009-010-012-015-PAZ106-121915-
Hunterdon NJ-Somerset NJ-Middlesex NJ-Mercer NJ-Lower Bucks PA-
237 PM EDT Sat Aug 12 2023
...A strong thunderstorm will impact portions of southeastern
Hunterdon, northern Mercer, southwestern Somerset, southwestern
Middlesex and east central Bucks Counties through 315 PM EDT...
At 237 PM EDT, Doppler radar was tracking a strong thunderstorm near
Pennington, or 11 miles northwest of Trenton, moving east at 15 mph.
HAZARD...Wind gusts up to 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Ewing, Princeton, Pennington, New Hope, Hopewell, Rocky Hill,
Millstone, Washington Crossing, Skillman, Princeton Meadows,
Sergeantsville, Kingston, Plainsboro Center, Belle Mead,
Lawrenceville, Cloverhill, Kendall Park, Lambertville, Princeton
Junction and Princeton North.
This includes Interstate 295 in New Jersey between mile markers 67
and 75.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4027 7494 4045 7496 4053 7458 4026 7455
TIME...MOT...LOC 1837Z 264DEG 15KT 4038 7486
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
HoeflichLocal storm report, Aug 12, 2:53 PM EDT, 1 hour 44 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
253 PM EDT Sat Aug 12 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0147 PM Tstm Wnd Dmg Lindenwold 39.82N 74.97W
08/12/2023 Camden NJ 911 Call Center
Three trees down in Lindenwold. Time
estimated via radar.
&&
MLBSpecial weather statement, Aug 12, 3:06 PM EDT, 1 hour 31 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
306 PM EDT Sat Aug 12 2023
PAZ060-121930-
Berks PA-
306 PM EDT Sat Aug 12 2023
...A strong thunderstorm will impact portions of Berks County through
330 PM EDT...
At 305 PM EDT, Doppler radar was tracking a strong thunderstorm over
Strausstown, or 8 miles northeast of Myerstown, moving east at 30
mph.
HAZARD...Wind gusts up to 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Reading, Wyomissing, Kutztown, Hamburg, Fleetwood, Sinking Spring,
Laureldale, Womelsdorf, Wernersville, Topton, Robesonia, Leesport,
Shoemakersville, Bernville, Lyons, Strausstown, Spring Ridge,
Fairview Hgts, Shillington and West Reading.
This includes the following highways...
Interstate 78 in Pennsylvania between mile markers 10 and 28.
Interstate 176 in Pennsylvania near mile marker 11.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4052 7634 4052 7625 4055 7615 4053 7566
4027 7569 4034 7619 4049 7643
TIME...MOT...LOC 1905Z 276DEG 27KT 4045 7619
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
HoeflichSpecial weather statement, Aug 12, 3:39 PM EDT, 58 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
339 PM EDT Sat Aug 12 2023
PAZ060-103-122015-
Western Montgomery PA-Berks PA-
339 PM EDT Sat Aug 12 2023
...A strong thunderstorm will impact portions of southeastern Berks
and northwestern Montgomery Counties through 415 PM EDT...
At 339 PM EDT, Doppler radar was tracking a strong thunderstorm over
Spring Ridge, or near Reading, moving east at 30 mph.
HAZARD...Wind gusts up to 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Reading, Pottstown, Wyomissing, Birdsboro, Fleetwood, Sinking Spring,
Laureldale, Wernersville, Leesport, Bally, Bechtelsville, Spring
Ridge, Fairview Hgts, Gilbertsville, Stowe, Shillington, West
Reading, Boyertown, Mount Penn and Mohnton.
This includes Interstate 176 in Pennsylvania between mile markers 10
and 11.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4048 7605 4047 7557 4045 7553 4021 7557
4021 7559 4024 7560 4024 7561 4023 7560
4024 7565 4024 7570 4032 7608
TIME...MOT...LOC 1939Z 276DEG 27KT 4038 7598
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
HoeflichSpecial weather statement, Aug 12, 3:55 PM EDT, 42 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
355 PM EDT Sat Aug 12 2023
PAZ070-101-102-122030-
Delaware PA-Western Chester PA-Eastern Chester PA-
355 PM EDT Sat Aug 12 2023
...A strong thunderstorm will impact portions of central Chester and
western Delaware Counties through 430 PM EDT...
At 355 PM EDT, Doppler radar was tracking a strong thunderstorm over
Honey Brook, or 9 miles east of New Holland, moving east at 30 mph.
HAZARD...Wind gusts up to 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
West Chester, Coatesville, Westtown, Downingtown, Parkesburg, Honey
Brook, Cheyney, Marshallton, Lima, Chelsea, Lionville-Marchwood,
Gradyville, Valley Forge, Glenmoore, Paoli, Chester Springs,
Lionville, Concordville, Radnor Township and West Goshen.
This includes Pennsylvania Turnpike between mile markers 304 and 325.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4004 7593 4011 7594 4014 7587 4011 7547
4009 7545 4009 7542 4007 7540 3985 7545
3996 7599
TIME...MOT...LOC 1955Z 280DEG 26KT 4005 7591
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
HoeflichThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 12:57 PM EDT | Areal Flood Advisory | PHI | New Castle | 3 hr |
| Aug 12, 1:38 PM EDT | Areal Flood Advisory | PHI | Delaware, Philadelphia | 3 hr |
| Aug 12, 3:06 PM EDT | Special Weather Statement | PHI | Berks | 24 min |
| Aug 12, 3:39 PM EDT | Special Weather Statement | PHI | Berks | 36 min |
| Aug 12, 3:49 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 41 min |
| Aug 12, 3:55 PM EDT | Special Weather Statement | PHI | Chester | 35 min |
| Aug 12, 4:06 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 39 min |
| Aug 12, 4:57 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 48 min |
| Aug 12, 5:05 PM EDT | Areal Flood Advisory | PHI | Chester | 3 hr |
| Aug 12, 5:16 PM EDT | Special Weather Statement | PHI | Delaware | 29 min |
| Aug 12, 5:31 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 44 min |
| Aug 12, 6:42 PM EDT | Special Weather Statement | PHI | Montgomery | 33 min |
| Aug 12, 6:47 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery | 28 min |
| Aug 12, 6:58 PM EDT | Areal Flood Advisory | PHI | Chester | 3 hr |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2023Severe Thunderstorm Warnings in Delaware, 2023Every severe thunderstorm warning in 2023
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.