Alert archive / New Jersey / Areal Flood Advisories in 2021
Areal Flood Advisory 55, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Jul 8, 2021, 11:59 PM EDT for Salem County, New Jersey. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 8, 2021, 11:59 PM EDT (03:59 UTC)
- Expired
- Jul 9, 2021, 5:15 AM EDT
- In force
- 5 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Salem County, NJ
The radar
The Dover AFB radar (KDOX), 84 km from the middle of the area, began a volume at 04:01 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, 4.0 hours before the alert went out and 184 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
- 440 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 675 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 151 m²/s²
- 0-3 km storm-relative helicity
- 336 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.3
The text
As transmitted.
300
WGUS81 KPHI 090359
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
1159 PM EDT Thu Jul 8 2021
NJC033-091000-
/O.NEW.KPHI.FA.Y.0055.210709T0359Z-210709T1000Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Salem NJ-
1159 PM EDT Thu Jul 8 2021
The National Weather Service in Mount Holly has issued a
* Flood Advisory for...
Salem County in southern New Jersey...
* Until 600 AM EDT Friday.
* At 1159 PM EDT, Doppler radar indicated that areas of heavy rain
were continuing to move into Salem County. Minor flooding is
ongoing or expected to begin shortly in the advisory area. Between
0.5 and 1 inch of rain has fallen with an additional 2 to 3 inches
possible.
* Some locations that may experience flooding include...
Pennsville, Carneys Point, Penns Grove, Salem, Woodstown, Alloway,
Quinton, Elmer, and Hancocks Bridge.
This includes the following highways...
New Jersey Turnpike near exit 1.
Interstate 295 in New Jersey between mile markers 0 and 8.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3962 7559 3972 7551 3971 7548 3977 7546
3979 7541 3969 7532 3967 7520 3957 7506
3948 7507 3946 7508 3956 7524 3944 7542
3943 7540 3943 7542 3942 7541 3951 7553
$$
Iovino1 follow-up statement
537
WGUS81 KPHI 090915
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
515 AM EDT Fri Jul 9 2021
NJC033-090925-
/O.CAN.KPHI.FA.Y.0055.000000T0000Z-210709T1000Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Salem NJ-
515 AM EDT Fri Jul 9 2021
...FLOOD ADVISORY IS CANCELLED FOR SALEM COUNTY...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 3962 7559 3972 7551 3971 7548 3977 7546
3979 7541 3969 7532 3967 7520 3957 7506
3948 7507 3946 7508 3956 7524 3944 7542
3943 7540 3943 7542 3942 7541 3951 7553
$$
IovinoThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 10:25 PM EDT | Areal Flood Advisory | PHI | Cape May, Cumberland | 7 hr |
| Jul 8, 11:02 PM EDT | Special Marine Warning | PHI | 88 min | |
| Jul 9, 12:07 AM EDT | Special Marine Warning | PHI | 53 min | |
| Jul 9, 12:08 AM EDT | Areal Flood Advisory | PHI | Atlantic, Camden, Gloucester | 6 hr |
| Jul 9, 12:25 AM EDT | Special Marine Warning | PHI | 95 min | |
| Jul 9, 1:34 AM EDT | Special Marine Warning | PHI | 86 min | |
| Jul 9, 1:49 AM EDT | Special Marine Warning | PHI | 26 min | |
| Jul 9, 2:05 AM EDT | Areal Flood Advisory | PHI | Burlington, Monmouth, Ocean | 8 hr |
| Jul 9, 2:50 AM EDT | Tornado Warning | PHI | Atlantic, Cape May, Cumberland | 25 min |
| Jul 9, 2:53 AM EDT | Special Marine Warning | PHI | 68 min | |
| Jul 9, 3:38 AM EDT | Tornado Warning | PHI | Atlantic, Burlington, Ocean | 18 min |
| Jul 9, 3:51 AM EDT | Special Marine Warning | PHI | 84 min | |
| Jul 9, 4:08 AM EDT | Gale Warning | PHI | 3 hr | |
| Jul 9, 4:41 AM EDT | Tornado Warning | PHI | Monmouth, Ocean | 34 min |
| Jul 9, 4:44 AM EDT | Areal Flood Advisory | PHI | Mercer, Middlesex | 5 hr |
| Jul 9, 4:54 AM EDT | Areal Flood Advisory | PHI | Morris, Somerset | 5 hr |
| Jul 9, 4:58 AM EDT | Special Marine Warning | PHI | 39 min | |
| Jul 9, 5:34 PM EDT | Areal Flood Advisory | PHI | Sussex, Warren | 2 hr |
| Jul 9, 6:19 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 41 min |
| Jul 9, 6:24 PM EDT | Special Marine Warning | PHI | 66 min | |
| Jul 9, 6:50 PM EDT | Areal Flood Advisory | PHI | Gloucester, Salem | 2 hr |
| Jul 9, 6:57 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 63 min |
| Jul 9, 7:17 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester | 23 min |
| Jul 9, 7:39 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Morris, Sussex, Warren | 2 hr |
| Jul 9, 7:43 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Camden, Cape May, Cumberland, Gloucester, Salem | 62 min |
| Jul 9, 7:46 PM EDT | Areal Flood Advisory | PHI | Atlantic, Camden, Cumberland, Gloucester, Salem | 108 min |
Nearby
Areal Flood Advisories in New Jersey, 2021Every areal flood advisory 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.