Alert archive / New Jersey / Areal Flood Advisories in 2021
Areal Flood Advisory 38, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Jun 19, 2021, 5:59 PM EDT for Morris County, Sussex County, New Jersey. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 19, 2021, 5:59 PM EDT (21:59 UTC)
- Expired
- Jun 19, 2021, 8:00 PM EDT
- In force
- 2 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Morris County, NJ, Sussex County, NJ
The radar
The Philadelphia radar (KDIX), 115 km from the middle of the area, began a volume at 22:00 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, 10.0 hours before the alert went out and 133 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
- 10 J/kg
- Mixed-layer CIN
- -293 J/kg
- Mixed-layer LCL
- 877 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 254 m²/s²
- 0-3 km storm-relative helicity
- 260 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
934
WGUS81 KPHI 192159
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
559 PM EDT Sat Jun 19 2021
NJC027-037-200000-
/O.NEW.KPHI.FA.Y.0038.210619T2159Z-210620T0000Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Morris NJ-Sussex NJ-
559 PM EDT Sat Jun 19 2021
The National Weather Service in Mount Holly has issued a
* Flood Advisory for...
Central Morris County in northern New Jersey...
Southeastern Sussex County in northwestern New Jersey...
* Until 800 PM EDT.
* At 559 PM EDT, the public reported heavy rain in the advisory area
due to thunderstorms. Minor flooding is ongoing or expected to
begin shortly. Between 0.5 and 1.5 inches of rain have fallen,
with the heaviest rainfall in the Dover area.
* Some locations that will experience flooding include...
Dover, Hopatcong, Lincoln Park, Kinnelon, Boonton, Butler,
Wharton, Rockaway, Morris Plains, Mount Arlington, Mountain Lakes,
and Stanhope.
This includes the following highways...
Interstate 80 in New Jersey between mile markers 23 and 48.
Interstate 287 in New Jersey between mile markers 40 and 53.
This includes the following DSS Events...
Morris County Mega Site.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 4102 7474 4110 7449 4109 7450 4108 7450
4108 7449 4103 7450 4105 7445 4104 7443
4102 7443 4100 7430 4097 7428 4093 7429
4091 7427 4090 7428 4091 7433 4087 7434
4086 7432 4084 7433 4082 7478
$$
CMS2 follow-up statements
055
WGUS81 KPHI 192245
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
645 PM EDT Sat Jun 19 2021
NJC027-037-200000-
/O.CON.KPHI.FA.Y.0038.000000T0000Z-210620T0000Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Morris NJ-Sussex NJ-
645 PM EDT Sat Jun 19 2021
...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR
CENTRAL MORRIS AND SOUTHEASTERN SUSSEX COUNTIES...
At 645 PM EDT, Doppler radar and automated rain gauges indicated
heavy rain continuing in portions of northern Morris County,
especially near Lincoln Park and Kinnelon. Minor flooding is ongoing
or expected to begin shortly in the advisory area. Between 0.5 and
1.5 inches of rain have fallen.
Some locations that will experience flooding include...
Dover, Hopatcong, Lincoln Park, Kinnelon, Boonton, Butler,
Wharton, Rockaway, Morris Plains, Mount Arlington, Mountain Lakes,
and Stanhope.
This includes the following highways...
Interstate 80 in New Jersey between mile markers 24 and 48.
Interstate 287 in New Jersey between mile markers 40 and 53.
This includes the following DSS Events...
Morris County Mega Site.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 4102 7474 4110 7449 4109 7450 4108 7450
4108 7449 4103 7450 4105 7445 4104 7443
4102 7443 4100 7430 4097 7428 4093 7429
4091 7427 4090 7428 4091 7433 4087 7434
4086 7432 4084 7433 4082 7478
$$
CMS906
WGUS81 KPHI 192352
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
752 PM EDT Sat Jun 19 2021
NJC027-037-200002-
/O.EXP.KPHI.FA.Y.0038.000000T0000Z-210620T0000Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Morris NJ-Sussex NJ-
752 PM EDT Sat Jun 19 2021
...FLOOD ADVISORY WILL EXPIRE AT 8 PM EDT THIS EVENING FOR CENTRAL
MORRIS AND SOUTHEASTERN SUSSEX COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 4102 7474 4110 7449 4109 7450 4108 7450
4108 7449 4103 7450 4105 7445 4104 7443
4102 7443 4100 7430 4097 7428 4093 7429
4091 7427 4090 7428 4091 7433 4087 7434
4086 7432 4084 7433 4082 7478
$$
CMSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 3:54 AM EDT | Special Weather Statement | PHI | Hunterdon | 36 min |
| Jun 19, 5:17 PM EDT | Special Weather Statement | PHI | Ocean | 28 min |
| Jun 19, 5:40 PM EDT | Special Weather Statement | PHI | Ocean | 35 min |
| Jun 19, 5:46 PM EDT | Special Marine Warning | PHI | 32 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.