Alert archive / New Jersey / Areal Flood Advisories in 2021
Areal Flood Advisory 74, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Jul 12, 2021, 6:08 PM EDT for Morris County, New Jersey. It was in force for 98 min.
The area
The outline as issued.
The facts
- Issued
- Jul 12, 2021, 6:08 PM EDT (22:08 UTC)
- Expired
- Jul 12, 2021, 7:46 PM EDT
- In force
- 98 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Morris County, NJ
The radar
The Philadelphia radar (KDIX), 114 km from the middle of the area, began a volume at 22:09 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, 10.1 hours before the alert went out and 129 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.
601
WGUS81 KPHI 122208
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
608 PM EDT Mon Jul 12 2021
NJC027-130100-
/O.NEW.KPHI.FA.Y.0074.210712T2208Z-210713T0100Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Morris NJ-
608 PM EDT Mon Jul 12 2021
The National Weather Service in Mount Holly has issued a
* Flood Advisory for...
Northeastern Morris County in northern New Jersey...
* Until 900 PM EDT.
* At 608 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 inch of rain has
already fallen in spots with an additional 1 to 2 inches possible.
* Some locations that may experience flooding include...
Hopatcong, Lincoln Park, Kinnelon, Boonton, Butler, Rockaway,
Mountain Lakes, Riverdale, Lake Telemark, Green Pond, Parsippany,
and Pequannock Township.
This includes the following highways...
Interstate 80 in New Jersey between mile markers 37 and 40...and
between mile markers 43 and 48.
Interstate 287 in New Jersey between mile markers 42 and 53.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 4097 7464 4109 7450 4108 7449 4103 7450
4105 7445 4104 7443 4102 7443 4103 7442
4101 7439 4100 7430 4098 7430 4097 7428
4093 7429 4091 7427 4090 7428 4091 7433
4087 7434 4086 7432 4081 7434
$$
Iovino1 follow-up statement
176
WGUS81 KPHI 122346
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
746 PM EDT Mon Jul 12 2021
NJC027-122356-
/O.CAN.KPHI.FA.Y.0074.000000T0000Z-210713T0100Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Morris NJ-
746 PM EDT Mon Jul 12 2021
...FLOOD ADVISORY IS CANCELLED FOR NORTHEASTERN MORRIS COUNTY...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 4097 7464 4109 7450 4108 7449 4103 7450
4105 7445 4104 7443 4102 7443 4103 7442
4101 7439 4100 7430 4098 7430 4097 7428
4093 7429 4091 7427 4090 7428 4091 7433
4087 7434 4086 7432 4081 7434
$$
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, 4:52 PM EDT | Areal Flood Advisory | PHI | Monmouth, Ocean | 98 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, 6:43 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.