Alert archive / New Jersey / Flash Flood Warnings in 2025
Flash Flood Warning 12, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at May 16, 2025, 1:36 PM EDT for Atlantic County, Cape May County, Ocean County, New Jersey. It was in force for 3 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
- May 16, 2025, 1:36 PM EDT (17:36 UTC)
- Expired
- May 16, 2025, 4:26 PM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
Counties Atlantic County, NJ, Cape May County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 71 km from the middle of the area, began a volume at 17:37 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, 5.6 hours before the alert went out and 170 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
- 1302 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 868 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 197 m²/s²
- Significant tornado parameter
- -0.1
- Supercell composite
- -0.7
The text
As transmitted.
185
WGUS51 KPHI 161736
FFWPHI
NJC001-009-029-162145-
/O.NEW.KPHI.FF.W.0012.250516T1736Z-250516T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
136 PM EDT Fri May 16 2025
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
Southeastern Atlantic County in southern New Jersey...
Cape May County in southern New Jersey...
South Central Ocean County in southern New Jersey...
* Until 545 PM EDT.
* At 136 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to 1 inch of rain has
fallen. The expected rainfall rate is 2 to 4 inches in 1 hour.
Additional rainfall amounts of 1 to 1.5 inches are possible in the
warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Life threatening flash flooding caused by
thunderstorms.
SOURCE...Radar.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets, and underpasses.
* Some locations that may experience flash flooding include...
Atlantic City, Ocean City, Cape May, Pleasantville, Somers Point,
Ventnor City, Brigantine, Northfield, Absecon, Margate City, North
Wildwood and Tuckerton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
&&
LAT...LON 3965 7434 3959 7416 3937 7431 3891 7485
3891 7498 3896 7504 3949 7447
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...2-4 INCHES IN 1 HOUR
$$
Kruzdlo1 follow-up statement
657
WGUS71 KPHI 162026
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
426 PM EDT Fri May 16 2025
NJC001-009-029-162036-
/O.CAN.KPHI.FF.W.0012.000000T0000Z-250516T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Atlantic NJ-Cape May NJ-Ocean NJ-
426 PM EDT Fri May 16 2025
...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN ATLANTIC, CAPE
MAY AND SOUTH CENTRAL OCEAN COUNTIES...
Flooding has ended or continues to recede. Please continue to heed
remaining road closures if you encounter any.
&&
LAT...LON 3965 7434 3959 7416 3937 7431 3891 7485
3891 7498 3896 7504 3949 7447
$$
KruzdloThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 9:30 PM EDT | Marine Dense Fog Advisory | PHI | 15 hr | |
| May 15, 9:34 PM EDT | Dense Fog Advisory | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more | 12 hr |
| May 16, 11:16 AM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester | 59 min |
| May 16, 11:32 AM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester, Mercer, Salem | 4 hr |
| May 16, 11:41 AM EDT | Special Marine Warning | PHI | 49 min | |
| May 16, 11:46 AM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 59 min |
| May 16, 12:20 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Cumberland, Gloucester, Salem | 40 min |
| May 16, 12:22 PM EDT | Tornado Warning | PHI | Cumberland, Salem | 23 min |
| May 16, 12:31 PM EDT | Flash Flood Warning | PHI | Camden, Gloucester | 4 hr |
| May 16, 12:42 PM EDT | Tornado Warning | PHI | Atlantic, Cape May, Cumberland | 48 min |
| May 16, 12:45 PM EDT | Tornado Warning | PHI | Atlantic, Camden, Gloucester | 30 min |
| May 16, 12:47 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester, Salem | 4 hr |
| May 16, 12:49 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 1 more | 56 min |
| May 16, 12:51 PM EDT | Special Marine Warning | PHI | 114 min | |
| May 16, 12:52 PM EDT | Tornado Warning | PHI | Atlantic, Camden, Gloucester | 23 min |
| May 16, 1:26 PM EDT | Severe Thunderstorm Warning | PHI | Cape May, Cumberland | 49 min |
| May 16, 1:28 PM EDT | Flash Flood Warning | PHI | Burlington, Ocean | 3 hr |
| May 16, 1:32 PM EDT | Special Marine Warning | PHI | 88 min | |
| May 16, 1:58 PM EDT | Severe Thunderstorm Warning | PHI | Cape May | 32 min |
| May 16, 2:01 PM EDT | Special Marine Warning | PHI | 86 min | |
| May 16, 2:24 PM EDT | Areal Flood Warning | PHI | Hunterdon, Somerset | 94 min |
| May 16, 6:31 PM EDT | Special Marine Warning | PHI | 119 min | |
| May 16, 6:35 PM EDT | Severe Thunderstorm Warning | PHI | Cape May, Cumberland, Gloucester, Salem | 70 min |
Nearby
Flash Flood Warnings in New Jersey, 2025Every flash flood warning in 2025
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.