Alert archive / New Jersey / Areal Flood Warnings in 2021
Areal Flood Warning 6, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood warning at Jul 2, 2021, 4:31 AM EDT for Cumberland County, New Jersey. It was in force for 6 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
- Jul 2, 2021, 4:31 AM EDT (08:31 UTC)
- Expired
- Jul 2, 2021, 10:30 AM EDT
- In force
- 6 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
County Cumberland County, NJ
The radar
The Dover AFB radar (KDOX), 69 km from the middle of the area, began a volume at 08:33 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 00:00Z, 8.5 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
- 183 J/kg
- Mixed-layer CIN
- -110 J/kg
- Mixed-layer LCL
- 1139 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- -82 m²/s²
- 0-3 km storm-relative helicity
- -83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The text
As transmitted.
659
WGUS41 KPHI 020831
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
431 AM EDT Fri Jul 2 2021
NJC011-021430-
/O.NEW.KPHI.FA.W.0006.210702T0831Z-210702T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cumberland NJ-
431 AM EDT Fri Jul 2 2021
The National Weather Service in Mount Holly has issued a
* Flood Warning for...
North Central Cumberland County in southern New Jersey...
* Until 1030 AM EDT.
* At 431 AM EDT, gauge reports indicated flooding occurring due to
thunderstorms on Thursday. Flooding is already occurring in the
warned area. Between 2 and 2.5 inches of rain fell yesterday.
* For Cohansey River at Seeley:
At 4:15am the stage was 6.06 feet.
Flood Stage is 6 feet.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
&&
LAT...LON 3950 7529 3950 7525 3936 7519 3935 7526
3940 7529
$$
SFJThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 11:31 PM EDT | Special Weather Statement | PHI | Salem | 29 min |
| Jul 1, 11:40 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cumberland, Gloucester, Salem | 39 min |
| Jul 2, 10:40 AM EDT | Areal Flood Warning | PHI | Cumberland | 6 hr |
| Jul 2, 11:16 AM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester | 119 min |
| Jul 2, 12:12 PM EDT | Areal Flood Advisory | PHI | Gloucester, Salem | 97 min |
| Jul 2, 1:11 PM EDT | Flash Flood Warning | PHI | Gloucester, Salem | 59 min |
| Jul 2, 1:47 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Gloucester, Ocean, Salem | 116 min |
| Jul 2, 3:48 PM EDT | Small Craft Advisory | PHI | 31 hr | |
| Jul 2, 4:47 PM EDT | Special Weather Statement | PHI | Sussex | 28 min |
| Jul 2, 6:42 PM EDT | Special Weather Statement | PHI | Warren | 48 min |
| Jul 2, 6:53 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 52 min |
| Jul 2, 7:25 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 50 min |
| Jul 2, 7:33 PM EDT | Special Weather Statement | PHI | Cumberland | 42 min |
| Jul 2, 7:41 PM EDT | Flash Flood Warning | PHI | Burlington, Camden | 3 hr |
Nearby
Areal Flood Warnings in New Jersey, 2021Every areal flood warning in 2021
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.