Alert archive / New Jersey / Flash Flood Warnings in 2023
Flash Flood Warning 23, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 27, 2023, 5:17 PM EDT for Salem County, New Jersey; New Castle County, Delaware. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 27, 2023, 5:17 PM EDT (21:17 UTC)
- Expired
- Jun 27, 2023, 9:15 PM EDT
- In force
- 4 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties New Castle County, DE, Salem County, NJ
The radar
The Dover AFB radar (KDOX), 68 km from the middle of the area, began a volume at 21:21 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 9.3 hours before the alert went out and 168 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
- 8 J/kg
- Mixed-layer CIN
- -130 J/kg
- Mixed-layer LCL
- 1455 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
675
WGUS51 KPHI 272117
FFWPHI
DEC003-NJC033-280115-
/O.NEW.KPHI.FF.W.0023.230627T2117Z-230628T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
517 PM EDT Tue Jun 27 2023
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
Southwestern New Castle County in northern Delaware...
Southwestern Salem County in southern New Jersey...
* Until 915 PM EDT.
* At 517 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 4 inches of rain
have fallen. Additional rainfall amounts of 1 to 2 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets, and underpasses as well as other
drainage and low lying areas.
* Some locations that may experience flash flooding include...
Middletown, Hope Creek, Port Penn, Hancocks Bridge, Odessa, and
Chambersville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3934 7561 3947 7573 3956 7543 3946 7539
3946 7540 3945 7541 3944 7541 3943 7542
3943 7541 3942 7541
FLASH FLOOD...RADAR INDICATED
$$
Kruzdlo1 follow-up statement
585
WGUS71 KPHI 280110
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
910 PM EDT Tue Jun 27 2023
DEC003-NJC033-280120-
/O.EXP.KPHI.FF.W.0023.000000T0000Z-230628T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle DE-Salem NJ-
910 PM EDT Tue Jun 27 2023
...FLASH FLOOD WARNING WILL EXPIRE AT 915 PM EDT THIS EVENING FOR
SOUTHWESTERN NEW CASTLE AND SOUTHWESTERN SALEM COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat.
LAT...LON 3934 7561 3947 7573 3956 7543 3946 7539
3946 7540 3945 7541 3944 7541 3943 7542
3943 7541 3942 7541
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 8:42 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Somerset | 48 min |
| Jun 26, 8:56 PM EDT | Areal Flood Advisory | PHI | Sussex | 38 min |
| Jun 26, 8:56 PM EDT | Special Weather Statement | PHI | Warren | 34 min |
| Jun 26, 9:21 PM EDT | Special Weather Statement | PHI | Mercer | 24 min |
| Jun 26, 9:30 PM EDT | Flash Flood Warning | PHI | Warren | 3 hr |
| Jun 26, 9:31 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Somerset | 44 min |
| Jun 26, 9:34 PM EDT | Flash Flood Warning | PHI | Sussex | 2 hr |
| Jun 26, 9:46 PM EDT | Special Marine Warning | PHI | 59 min | |
| Jun 26, 9:51 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 54 min |
| Jun 26, 10:07 PM EDT | Special Weather Statement | PHI | Middlesex, Morris | 23 min |
| Jun 26, 10:26 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 16 min |
| Jun 26, 10:33 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Salem | 42 min |
| Jun 26, 10:41 PM EDT | Areal Flood Advisory | PHI | Sussex, Warren | 84 min |
| Jun 26, 10:54 PM EDT | Areal Flood Advisory | PHI | Camden, Gloucester, Salem | 3 hr |
| Jun 26, 11:07 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Hunterdon, Mercer, Middlesex, Monmouth and 1 more | 53 min |
| Jun 26, 11:27 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Somerset | 3 hr |
| Jun 26, 11:35 PM EDT | Flash Flood Warning | PHI | Mercer | 6 hr |
| Jun 26, 11:42 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Somerset | 33 min |
| Jun 27, 12:00 AM EDT | Areal Flood Warning | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 7 hr |
| Jun 27, 12:12 AM EDT | Special Weather Statement | PHI | Monmouth | 33 min |
| Jun 27, 12:16 AM EDT | Special Marine Warning | PHI | 44 min | |
| Jun 27, 1:26 AM EDT | Special Marine Warning | PHI | 49 min | |
| Jun 27, 2:00 AM EDT | Special Marine Warning | PHI | 45 min | |
| Jun 27, 3:02 AM EDT | Flood Watch | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more | 46 min |
| Jun 27, 3:48 AM EDT | Flood Watch | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 5 more | 17 hr |
| Jun 27, 4:04 AM EDT | River Flood Warning | PHI | Morris | 22 hr |
| Jun 27, 11:16 AM EDT | Areal Flood Advisory | PHI | Morris, Sussex | 3 hr |
| Jun 27, 11:42 AM EDT | Areal Flood Advisory | PHI | Monmouth | 2 hr |
| Jun 27, 3:05 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 40 min |
| Jun 27, 3:06 PM EDT | Special Marine Warning | PHI | 54 min | |
| Jun 27, 3:32 PM EDT | Areal Flood Advisory | PHI | Cumberland, Salem | 3 hr |
| Jun 27, 3:38 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 52 min |
| Jun 27, 3:41 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 22 min |
| Jun 27, 3:52 PM EDT | Special Marine Warning | PHI | 53 min | |
| Jun 27, 4:21 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 39 min |
| Jun 27, 4:24 PM EDT | Areal Flood Advisory | PHI | Warren | 3 hr |
| Jun 27, 4:33 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 42 min |
| Jun 27, 4:36 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 26 min |
| Jun 27, 4:39 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer | 51 min |
| Jun 27, 5:01 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Warren | 44 min |
| Jun 27, 5:05 PM EDT | Special Marine Warning | PHI | 25 min | |
| Jun 27, 5:22 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 38 min |
| Jun 27, 5:23 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 32 min |
| Jun 27, 5:40 PM EDT | Special Weather Statement | PHI | Hunterdon, Somerset | 35 min |
| Jun 27, 5:45 PM EDT | Special Weather Statement | PHI | Warren | 45 min |
| Jun 27, 5:49 PM EDT | Special Weather Statement | PHI | Camden | 26 min |
| Jun 27, 5:52 PM EDT | Areal Flood Advisory | PHI | Sussex, Warren | 3 hr |
| Jun 27, 5:52 PM EDT | Special Weather Statement | PHI | Burlington | 38 min |
| Jun 27, 5:57 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Cumberland, Gloucester, Mercer, Salem | 3 hr |
| Jun 27, 6:08 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 25 min |
| Jun 27, 6:12 PM EDT | Special Weather Statement | PHI | Middlesex, Morris, Somerset | 33 min |
| Jun 27, 6:15 PM EDT | Special Weather Statement | PHI | Warren | 45 min |
| Jun 27, 6:35 PM EDT | Special Weather Statement | PHI | Burlington | 25 min |
| Jun 27, 6:40 PM EDT | Special Marine Warning | PHI | 36 min | |
| Jun 27, 6:46 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 44 min |
| Jun 27, 6:49 PM EDT | Areal Flood Advisory | PHI | Sussex | 3 hr |
| Jun 27, 6:52 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more | 3 hr |
| Jun 27, 7:03 PM EDT | Special Weather Statement | PHI | Sussex | 27 min |
| Jun 27, 7:30 PM EDT | Special Weather Statement | PHI | Sussex | 30 min |
| Jun 27, 7:56 PM EDT | Special Weather Statement | PHI | Atlantic | 34 min |
| Jun 26, 9:19 PM EDT | Special Weather Statement | PHI | New Castle | 26 min |
| Jun 26, 9:25 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 50 min |
| Jun 26, 10:01 PM EDT | Flash Flood Warning | PHI | New Castle | 4 hr |
| Jun 26, 10:46 PM EDT | River Flood Warning | PHI | New Castle | 5 hr |
| Jun 26, 11:09 PM EDT | River Flood Warning | PHI | New Castle | 2 hr |
| Jun 27, 2:09 AM EDT | Special Weather Statement | PHI | New Castle | 21 min |
| Jun 27, 2:29 AM EDT | Special Weather Statement | PHI | New Castle | 31 min |
| Jun 27, 2:37 AM EDT | Flash Flood Warning | PHI | New Castle | 3 hr |
| Jun 27, 5:08 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 37 min |
| Jun 27, 6:18 PM EDT | Special Weather Statement | PHI | Kent | 27 min |
Nearby
Flash Flood Warnings in New Jersey, 2023Flash Flood Warnings in Delaware, 2023Every flash flood 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.