Alert archive / New Jersey / Flood Watches in 2023
Flood Watch 9, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flood watch at Sep 28, 2023, 11:15 AM EDT for 10 counties in New Jersey. It took effect at Sep 29, 2023, 12:00 AM EDT. It was in force for 22 hr.
The area
The counties it named.
The facts
- Issued
- Sep 28, 2023, 11:15 AM EDT (15:15 UTC)
- In effect from
- Sep 29, 2023, 12:00 AM EDT
- Expired
- Sep 29, 2023, 9:33 PM EDT
- In force
- 22 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Flood severity
- None
Counties Burlington County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 3.3 hours before the alert went out and 152 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
- 612 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
764
WGUS61 KPHI 281515
FFAPHI
URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Mount Holly NJ
1115 AM EDT Thu Sep 28 2023
NJZ001-007>010-012>015-020-026-290900-
/O.NEW.KPHI.FA.A.0009.230929T0400Z-230930T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-Western
Monmouth-Eastern Monmouth-Mercer-Ocean-Coastal Ocean-
Including the cities of Washington, Trenton, Morristown,
Freehold, Flemington, Somerville, Long Beach Island, New
Brunswick, Sandy Hook, Newton, and Jackson
1115 AM EDT Thu Sep 28 2023
...FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE FRIDAY
NIGHT...
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...Portions of central, northern, northwest, and southern New
Jersey, including the following areas, in central New Jersey...
Eastern Monmouth, Mercer, and Western Monmouth. In northern New
Jersey...Middlesex, Morris, Somerset, Sussex, and Warren. In
northwest New Jersey...Hunterdon. In southern New Jersey...Coastal
Ocean and Ocean.
* WHEN...From late tonight through late Friday night.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks.
* ADDITIONAL DETAILS...
- Periods of heavy rain are likely beginning late tonight,
continuing through Friday Night. Rainfall amounts of 2 to 4
inches are expected, with locally higher amounts of 6 inches
or more possible.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
Hoeflich4 follow-up statements
902
WGUS61 KPHI 281922
FFAPHI
URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Mount Holly NJ
322 PM EDT Thu Sep 28 2023
NJZ019-027-290900-
/O.EXA.KPHI.FA.A.0009.230929T0400Z-230930T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northwestern Burlington-Southeastern Burlington-
Including the cities of Mount Holly, Wharton State Forest, and
Moorestown
322 PM EDT Thu Sep 28 2023
...FLOOD WATCH IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH LATE
FRIDAY NIGHT...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of southern New Jersey, including the following
areas, Northwestern Burlington and Southeastern Burlington.
* WHEN...From midnight EDT tonight through late Friday night.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks.
* ADDITIONAL DETAILS...
- Periods of heavy rain are likely beginning late tonight,
continuing through Friday Night. Rainfall amounts of 2 to 4
inches are expected, with locally higher amounts possible.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
NJZ001-007>010-012>015-020-026-290900-
/O.CON.KPHI.FA.A.0009.230929T0400Z-230930T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-Western
Monmouth-Eastern Monmouth-Mercer-Ocean-Coastal Ocean-
Including the cities of Washington, Trenton, Morristown,
Freehold, Flemington, Somerville, Long Beach Island, New
Brunswick, Sandy Hook, Newton, and Jackson
322 PM EDT Thu Sep 28 2023
...FLOOD WATCH REMAINS IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH
LATE FRIDAY NIGHT...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of central, northern, northwest, and southern New
Jersey, including the following areas, in central New Jersey...
Eastern Monmouth, Mercer, and Western Monmouth. In northern New
Jersey...Middlesex, Morris, Somerset, Sussex, and Warren. In
northwest New Jersey...Hunterdon. In southern New Jersey...Coastal
Ocean and Ocean.
* WHEN...From midnight EDT tonight through late Friday night.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks.
* ADDITIONAL DETAILS...
- Periods of heavy rain are likely beginning late tonight,
continuing through Friday Night. Rainfall amounts of 2 to 4
inches are expected, with locally higher amounts of 6 inches
or more possible.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
Hoeflich055
WGUS61 KPHI 290645
FFAPHI
Flood Watch
National Weather Service Mount Holly NJ
245 AM EDT Fri Sep 29 2023
NJZ001-007>010-012>015-019-020-026-027-291845-
/O.CON.KPHI.FA.A.0009.000000T0000Z-230930T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-Western
Monmouth-Eastern Monmouth-Mercer-Northwestern Burlington-Ocean-
Coastal Ocean-Southeastern Burlington-
Including the cities of Washington, Morristown, Somerville, Sandy
Hook, Jackson, Mount Holly, Newton, Freehold, Long Beach Island,
Moorestown, Wharton State Forest, New Brunswick, Trenton, and
Flemington
245 AM EDT Fri Sep 29 2023
...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of central, northern, northwest, and southern New
Jersey, including the following areas, in central New Jersey...
Eastern Monmouth, Mercer, and Western Monmouth. In northern New
Jersey...Middlesex, Morris, Somerset, Sussex, and Warren. In
northwest New Jersey...Hunterdon. In southern New Jersey...Coastal
Ocean, Northwestern Burlington, Ocean, and Southeastern Burlington.
* WHEN...Through late tonight.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks.
* ADDITIONAL DETAILS...
- Periods of heavy rain are likely to continue through tonight.
Rainfall amounts of 2 to 4 inches are expected, with locally
higher amounts of 6 inches or more possible.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
RCM014
WGUS61 KPHI 291831
FFAPHI
Flood Watch
National Weather Service Mount Holly NJ
231 PM EDT Fri Sep 29 2023
NJZ001-007>010-012>015-019-020-026-027-301000-
/O.CON.KPHI.FA.A.0009.000000T0000Z-230930T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-Western
Monmouth-Eastern Monmouth-Mercer-Northwestern Burlington-Ocean-
Coastal Ocean-Southeastern Burlington-
Including the cities of Mount Holly, Morristown, Wharton State
Forest, Washington, Sandy Hook, New Brunswick, Long Beach Island,
Flemington, Somerville, Moorestown, Jackson, Freehold, Trenton,
and Newton
231 PM EDT Fri Sep 29 2023
...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of central, northern, northwest, and southern New
Jersey, including the following areas, in central New Jersey...
Eastern Monmouth, Mercer, and Western Monmouth. In northern New
Jersey...Middlesex, Morris, Somerset, Sussex, and Warren. In
northwest New Jersey...Hunterdon. In southern New Jersey...Coastal
Ocean, Northwestern Burlington, Ocean, and Southeastern Burlington.
* WHEN...Through late tonight.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks.
* ADDITIONAL DETAILS...
- Periods of heavy rain are likely to continue through tonight.
Additional rainfall amounts of 2 to 4 inches are expected,
with the highest amounts across portions of Monmouth, Ocean,
and Middlesex Counties.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
MLB590 WGUS61 KPHI 300133 FFAPHI Flood Watch National Weather Service Mount Holly NJ 933 PM EDT Fri Sep 29 2023 NJZ001-007>010-012>015-019-020-026-027-300245- /O.CAN.KPHI.FA.A.0009.000000T0000Z-230930T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-Western Monmouth-Eastern Monmouth-Mercer-Northwestern Burlington-Ocean- Coastal Ocean-Southeastern Burlington- Including the cities of Sandy Hook, Jackson, Somerville, Morristown, Moorestown, Long Beach Island, Flemington, Trenton, Washington, Freehold, New Brunswick, Wharton State Forest, Newton, and Mount Holly 933 PM EDT Fri Sep 29 2023 ...FLOOD WATCH IS CANCELLED... The Flood Watch is cancelled for portions of central, northern, northwest, and southern New Jersey, including the following areas, in central New Jersey...Eastern Monmouth, Mercer, and Western Monmouth. In northern New Jersey...Middlesex, Morris, Somerset, Sussex, and Warren. In northwest New Jersey...Hunterdon. In southern New Jersey...Coastal Ocean, Northwestern Burlington, Ocean, and Southeastern Burlington. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. $$ MPS
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 28, 4:26 AM EDT | Coastal Flood Advisory | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 4 more | 3 days |
Nearby
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.