Alert archive / New Jersey / Areal Flood Advisories in 2021
Areal Flood Advisory 64, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Jul 9, 2021, 7:46 PM EDT for 5 counties in New Jersey. It was in force for 108 min.
The area
The outline as issued.
The facts
- Issued
- Jul 9, 2021, 7:46 PM EDT (23:46 UTC)
- Expired
- Jul 9, 2021, 9:34 PM EDT
- In force
- 108 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Atlantic County, NJ, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ
The radar
The Dover AFB radar (KDOX), 83 km from the middle of the area, began a volume at 23:45 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, 11.8 hours before the alert went out and 181 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 712 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
880
WGUS81 KPHI 092346
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
746 PM EDT Fri Jul 9 2021
NJC001-007-011-015-033-100245-
/O.NEW.KPHI.FA.Y.0064.210709T2346Z-210710T0245Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Atlantic NJ-Camden NJ-Cumberland NJ-Gloucester NJ-Salem NJ-
746 PM EDT Fri Jul 9 2021
The National Weather Service in Mount Holly has issued a
* Flood Advisory for...
Northwestern Atlantic County in southern New Jersey...
Southeastern Camden County in southern New Jersey...
Northwestern Cumberland County in southern New Jersey...
Gloucester County in southern New Jersey...
Central Salem County in southern New Jersey...
* Until 1045 PM EDT.
* At 746 PM EDT, Doppler radar indicated heavy rain due to
thunderstorms. Minor flooding is ongoing or expected to begin
shortly in the advisory area. Between 1 and 2 inches of rain have
fallen.
* Some locations that will experience flooding include...
Vineland, Millville, Bridgeton, Glassboro, Hammonton, Pitman,
Clayton, Buena, Woodstown, Alloway, Quinton, and Swedesboro.
This includes the following highways...
New Jersey Turnpike near exit 2.
Atlantic City Expressway between mile markers 30 and 42.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3942 7545 3943 7545 3971 7536 3978 7533
3975 7502 3972 7474 3936 7514 3939 7527
$$
Kruzdlo1 follow-up statement
671
WGUS81 KPHI 100134
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
934 PM EDT Fri Jul 9 2021
NJC001-007-011-015-033-100144-
/O.CAN.KPHI.FA.Y.0064.000000T0000Z-210710T0245Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Atlantic NJ-Camden NJ-Cumberland NJ-Gloucester NJ-Salem NJ-
934 PM EDT Fri Jul 9 2021
...FLOOD ADVISORY IS CANCELLED FOR NORTHWESTERN ATLANTIC,
SOUTHEASTERN CAMDEN, NORTHWESTERN CUMBERLAND, GLOUCESTER, AND
CENTRAL SALEM COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 3942 7545 3943 7545 3971 7536 3978 7533
3975 7502 3972 7474 3936 7514 3939 7527
$$
DealThe 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 8, 11:59 PM EDT | Areal Flood Advisory | PHI | Salem | 5 hr |
| 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 |
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.