Alert archive / New Jersey / Areal Flood Advisories in 2021
Areal Flood Advisory 70, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Jul 12, 2021, 4:52 PM EDT for Monmouth County, Ocean County, New Jersey. It was in force for 98 min.
The area
The outline as issued.
The facts
- Issued
- Jul 12, 2021, 4:52 PM EDT (20:52 UTC)
- Expired
- Jul 12, 2021, 6:30 PM EDT
- In force
- 98 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Monmouth County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 25 km from the middle of the area, began a volume at 20:55 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
Brookhaven, NY (KOKX), launched 12:00Z, 8.9 hours before the alert went out and 145 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
- 857 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 697 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 114 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.4
The text
As transmitted.
944
WGUS81 KPHI 122052
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
452 PM EDT Mon Jul 12 2021
NJC025-029-122230-
/O.NEW.KPHI.FA.Y.0070.210712T2052Z-210712T2230Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monmouth NJ-Ocean NJ-
452 PM EDT Mon Jul 12 2021
The National Weather Service in Mount Holly has issued a
* Flood Advisory for...
Southeastern Monmouth County in central New Jersey...
Northeastern Ocean County in southern New Jersey...
* Until 630 PM EDT.
* At 452 PM EDT, Doppler radar indicated heavy rain due to
thunderstorms. Minor flooding is ongoing or expected to begin
shortly in the advisory area. Between 0.5 and 1.5 inches of rain
have already fallen in spots with an additional inch possible.
* Some locations that may experience flooding include...
Toms River, Lakewood, Beachwood, Manasquan, Point Pleasant Beach,
Seaside Heights, Mantoloking, Leisure Village East, Brick
Township, Leisure Village, Dover Beaches North, and Dover Beaches
South.
This includes the following highways...
Garden State Parkway between mile markers 77 and 97.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3988 7424 4014 7422 4018 7401 4018 7400
4005 7403 3997 7406 3986 7408 3987 7414
3987 7415 3987 7416
$$
Iovino1 follow-up statement
674
WGUS81 KPHI 122145
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
545 PM EDT Mon Jul 12 2021
NJC025-122155-
/O.CAN.KPHI.FA.Y.0070.000000T0000Z-210712T2230Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monmouth NJ-
545 PM EDT Mon Jul 12 2021
...FLOOD ADVISORY IS CANCELLED FOR SOUTHEASTERN MONMOUTH COUNTY...
Flooding is no longer expected to pose a threat. Please continue to
heed remaining road closures.
LAT...LON 3988 7424 4001 7423 4005 7405 4005 7403
3997 7406 3986 7408 3987 7414 3987 7416
$$
NJC029-122230-
/O.CON.KPHI.FA.Y.0070.000000T0000Z-210712T2230Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ocean NJ-
545 PM EDT Mon Jul 12 2021
...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 630 PM EDT THIS EVENING
FOR NORTHEASTERN OCEAN COUNTY...
At 545 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 3 inches of rain have
already fallen in spots with an additional inch possible.
Some locations that may experience flooding include...
Toms River, Beachwood, Seaside Heights, Mantoloking, Dover Beaches
South, Dover Beaches North, Leisure Village East, Pleasant Plains,
Holiday City South, South Toms River, Island Heights, and Gilford
Park.
This includes the following highways...
Garden State Parkway between mile markers 77 and 86.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3988 7424 4001 7423 4005 7405 4005 7403
3997 7406 3986 7408 3987 7414 3987 7416
$$
IovinoThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 1:59 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden | 3 hr |
| Jul 12, 2:12 PM EDT | Flash Flood Warning | PHI | Burlington | 7 hr |
| Jul 12, 2:20 PM EDT | Areal Flood Advisory | PHI | Mercer, Middlesex, Monmouth | 3 hr |
| Jul 12, 2:37 PM EDT | Flash Flood Warning | PHI | Mercer, Middlesex, Monmouth | 93 min |
| Jul 12, 3:08 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 67 min |
| Jul 12, 3:31 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth | 41 min |
| Jul 12, 4:26 PM EDT | Special Marine Warning | PHI | 2 hr | |
| Jul 12, 4:33 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 42 min |
| Jul 12, 5:08 PM EDT | Areal Flood Advisory | PHI | Sussex | 5 hr |
| Jul 12, 5:08 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Mercer | 67 min |
| Jul 12, 5:26 PM EDT | Areal Flood Advisory | PHI | Camden | 2 hr |
| Jul 12, 5:36 PM EDT | Special Weather Statement | PHI | Sussex | 24 min |
| Jul 12, 5:41 PM EDT | Areal Flood Advisory | PHI | Burlington | 83 min |
| Jul 12, 5:57 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex | 63 min |
| Jul 12, 6:01 PM EDT | Flash Flood Warning | PHI | Camden | 102 min |
| Jul 12, 6:08 PM EDT | Areal Flood Advisory | PHI | Morris | 98 min |
| Jul 12, 6:43 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester | 93 min |
| Jul 12, 6:52 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex | 34 min |
| Jul 12, 7:00 PM EDT | Areal Flood Advisory | PHI | Gloucester, Salem | 112 min |
| Jul 12, 7:06 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 69 min |
| Jul 12, 7:11 PM EDT | Flash Flood Warning | PHI | Morris, Sussex | 35 min |
| Jul 12, 7:33 PM EDT | Special Marine Warning | PHI | 58 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.