Alert archive / New Jersey / Areal Flood Advisories in 2021
Areal Flood Advisory 45, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Jul 2, 2021, 1:47 PM EDT for 6 counties in New Jersey. It was in force for 116 min.
The area
The outline as issued.
The facts
- Issued
- Jul 2, 2021, 1:47 PM EDT (17:47 UTC)
- Expired
- Jul 2, 2021, 3:43 PM EDT
- In force
- 116 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Ocean County, NJ, Salem County, NJ
The radar
The Philadelphia radar (KDIX), 48 km from the middle of the area, began a volume at 17:47 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, 5.8 hours before the alert went out and 196 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
- 547 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 446 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 100 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
The text
As transmitted.
042
WGUS81 KPHI 021747
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
147 PM EDT Fri Jul 2 2021
NJC001-005-007-015-029-033-022100-
/O.NEW.KPHI.FA.Y.0045.210702T1747Z-210702T2100Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Atlantic NJ-Burlington NJ-Camden NJ-Gloucester NJ-Ocean NJ-Salem NJ-
147 PM EDT Fri Jul 2 2021
The National Weather Service in Mount Holly has issued a
* Flood Advisory for...
Northwestern Atlantic County in southern New Jersey...
Southeastern Burlington County in southern New Jersey...
Southeastern Camden County in southern New Jersey...
Southeastern Gloucester County in southern New Jersey...
Central Ocean County in southern New Jersey...
East Central Salem County in southern New Jersey...
* Until 500 PM EDT.
* At 147 PM EDT, Doppler radar indicated that heavy rain due to
thunderstorms was moving into the area from the northwest. The
thunderstorms may produce in excess of an inch of rain in a short
amount of time. Minor flooding is expected to begin shortly in the
advisory area.
* Some locations that may experience flooding include...
Toms River, Vineland, Barnegat, Hammonton, Beachwood, Clayton,
Shamong, Buena, Egg Harbor City, Seaside Heights, Weymouth, and
Chesilhurst.
This includes the following highways...
Garden State Parkway between mile markers 51 and 84.
Atlantic City Expressway between mile markers 16 and 36.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3962 7515 4006 7403 3974 7409 3941 7485
3943 7486 3957 7506 3955 7507
$$
Iovino1 follow-up statement
001
WGUS81 KPHI 021943
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
343 PM EDT Fri Jul 2 2021
NJC001-005-007-015-029-033-021953-
/O.CAN.KPHI.FA.Y.0045.000000T0000Z-210702T2100Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Atlantic NJ-Burlington NJ-Camden NJ-Gloucester NJ-Ocean NJ-Salem NJ-
343 PM EDT Fri Jul 2 2021
...FLOOD ADVISORY IS CANCELLED FOR NORTHWESTERN ATLANTIC,
SOUTHEASTERN BURLINGTON, SOUTHEASTERN CAMDEN, SOUTHEASTERN
GLOUCESTER, CENTRAL OCEAN, AND EAST CENTRAL SALEM COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 3962 7515 4006 7403 3974 7409 3941 7485
3943 7486 3957 7506 3955 7507
$$
IovinoThe 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, 4:31 AM EDT | Areal Flood Warning | PHI | Cumberland | 6 hr |
| 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, 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 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.