Alert archive / New Jersey / Flood Watches in 2024
Flood Watch 2, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flood watch at Jan 11, 2024, 1:06 PM EST for New Castle County, Delaware; 11 counties in New Jersey; 7 counties in Pennsylvania. It took effect at Jan 12, 2024, 7:00 PM EST. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Jan 11, 2024, 1:06 PM EST (18:06 UTC)
- In effect from
- Jan 12, 2024, 7:00 PM EST
- Expired
- Jan 13, 2024, 3:47 AM EST
- In force
- 9 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Flood severity
- None
Counties New Castle County, DE, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Bucks County, PA, Chester County, PA, Delaware County, PA, Lehigh County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 64 km from the middle of the area, began a volume at 18:06 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, 6.1 hours before the alert went out and 191 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
- 1362 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
897
WGUS61 KPHI 111806
FFAPHI
URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Mount Holly NJ
106 PM EST Thu Jan 11 2024
DEZ001-NJZ001-007>010-012-013-015-017>019-PAZ061-062-070-071-101>106-
120900-
/O.NEW.KPHI.FA.A.0002.240113T0000Z-240113T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle-Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-
Western Monmouth-Mercer-Gloucester-Camden-Northwestern Burlington-
Lehigh-Northampton-Delaware-Philadelphia-Western Chester-Eastern
Chester-Western Montgomery-Eastern Montgomery-Upper Bucks-Lower
Bucks-
Including the cities of Trenton, Moorestown, Collegeville,
Freehold, Doylestown, Norristown, Camden, Easton, Wilmington,
West Chester, Allentown, Glassboro, Honey Brook, Kennett Square,
Somerville, Media, Mount Holly, Morristown, New Brunswick, Cherry
Hill, Lansdale, Oxford, Pottstown, Perkasie, Chalfont,
Philadelphia, Washington, Morrisville, Flemington, Bethlehem, and
Newton
106 PM EST Thu Jan 11 2024
...FLOOD WATCH IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY
MORNING...
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...Portions of northern Delaware, including the following
area, New Castle, New Jersey, including the following areas,
Camden, Gloucester, Hunterdon, Mercer, Middlesex, Morris,
Northwestern Burlington, Somerset, Sussex, Warren and Western
Monmouth, and Pennsylvania, including the following areas,
Delaware, Eastern Chester, Eastern Montgomery, Lehigh, Lower
Bucks, Northampton, Philadelphia, Upper Bucks, Western Chester and
Western Montgomery.
* WHEN...From Friday evening through Saturday morning.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Area creeks
and streams are running high and could flood with more heavy rain.
* ADDITIONAL DETAILS...
- Rainfall totals ranging from 0.5-1.5 inches is forecast
across the watch area. Given saturated soils and stream and
river levels remaining high, additional flooding is possible
in urban areas, creeks, and rivers.
- 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.
&&
$$
DeSilva3 follow-up statements
943
WGUS61 KPHI 120848
FFAPHI
Flood Watch
National Weather Service Mount Holly NJ
348 AM EST Fri Jan 12 2024
DEZ001-NJZ001-007>010-012-013-015-017>019-PAZ061-062-070-071-101>106-
122100-
/O.CON.KPHI.FA.A.0002.240113T0000Z-240113T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle-Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-
Western Monmouth-Mercer-Gloucester-Camden-Northwestern Burlington-
Lehigh-Northampton-Delaware-Philadelphia-Western Chester-Eastern
Chester-Western Montgomery-Eastern Montgomery-Upper Bucks-Lower
Bucks-
Including the cities of Collegeville, Doylestown, Chalfont,
Trenton, Flemington, Morristown, Wilmington, Kennett Square,
Bethlehem, New Brunswick, Oxford, Allentown, Mount Holly,
Lansdale, Norristown, Media, Newton, Moorestown, Freehold,
Easton, Morrisville, West Chester, Washington, Pottstown,
Perkasie, Camden, Glassboro, Philadelphia, Somerville, Honey
Brook, and Cherry Hill
348 AM EST Fri Jan 12 2024
...FLOOD WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH SATURDAY
MORNING...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of northern Delaware, including the following
area, New Castle, New Jersey, including the following areas,
Camden, Gloucester, Hunterdon, Mercer, Middlesex, Morris,
Northwestern Burlington, Somerset, Sussex, Warren and Western
Monmouth, and Pennsylvania, including the following areas,
Delaware, Eastern Chester, Eastern Montgomery, Lehigh, Lower
Bucks, Northampton, Philadelphia, Upper Bucks, Western Chester and
Western Montgomery.
* WHEN...From this evening through Saturday morning.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Area creeks
and streams are running high and could flood with more heavy rain.
* ADDITIONAL DETAILS...
- Rainfall totals ranging from 0.5-1.5 inches is forecast
across the watch area. Given saturated soils and stream and
river levels remaining high, additional flooding is possible
in urban areas, creeks, and rivers.
- 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.
&&
$$
Deal037
WGUS61 KPHI 121938
FFAPHI
Flood Watch
National Weather Service Mount Holly NJ
238 PM EST Fri Jan 12 2024
DEZ001-NJZ001-007>010-012-013-015-017>019-PAZ061-062-070-071-101>106-
130900-
/O.CON.KPHI.FA.A.0002.240113T0000Z-240113T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle-Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-
Western Monmouth-Mercer-Gloucester-Camden-Northwestern Burlington-
Lehigh-Northampton-Delaware-Philadelphia-Western Chester-Eastern
Chester-Western Montgomery-Eastern Montgomery-Upper Bucks-Lower
Bucks-
Including the cities of Bethlehem, Chalfont, Trenton, Camden,
Wilmington, Glassboro, Freehold, Somerville, Pottstown, New
Brunswick, Newton, Philadelphia, Collegeville, Flemington, Honey
Brook, Kennett Square, Doylestown, Media, West Chester, Mount
Holly, Moorestown, Allentown, Perkasie, Morrisville, Washington,
Easton, Lansdale, Morristown, Cherry Hill, Norristown, and Oxford
238 PM EST Fri Jan 12 2024
...FLOOD WATCH REMAINS IN EFFECT FROM 7 PM EST THIS EVENING THROUGH
SATURDAY MORNING...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of northern Delaware, including the following
area, New Castle, New Jersey, including the following areas,
Camden, Gloucester, Hunterdon, Mercer, Middlesex, Morris,
Northwestern Burlington, Somerset, Sussex, Warren and Western
Monmouth, and Pennsylvania, including the following areas,
Delaware, Eastern Chester, Eastern Montgomery, Lehigh, Lower
Bucks, Northampton, Philadelphia, Upper Bucks, Western Chester and
Western Montgomery.
* WHEN...From 7 PM EST this evening through Saturday morning.
* 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. Flooding may occur
in poor drainage and urban areas. Low-water crossings may be
flooded. Area creeks and streams are running high and could flood
with more heavy rain.
* ADDITIONAL DETAILS...
- Rainfall totals ranging from 0.5 to 1.5 inches is forecast
across the watch area. Given saturated soils and stream and
river levels remaining high, additional flooding is possible
in urban areas, creeks, and rivers.
- 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.
&&
$$
Staarmann603 WGUS61 KPHI 130847 FFAPHI Flood Watch National Weather Service Mount Holly NJ 347 AM EST Sat Jan 13 2024 DEZ001-NJZ001-007>010-012-013-015-017>019-PAZ061-062-070-071-101>106- 131000- /O.CAN.KPHI.FA.A.0002.000000T0000Z-240113T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex- Western Monmouth-Mercer-Gloucester-Camden-Northwestern Burlington- Lehigh-Northampton-Delaware-Philadelphia-Western Chester-Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks-Lower Bucks- Including the cities of Easton, Kennett Square, Trenton, Washington, Wilmington, Collegeville, Newton, Glassboro, Camden, Norristown, Doylestown, Mount Holly, Bethlehem, Lansdale, Morrisville, Moorestown, Honey Brook, Cherry Hill, Media, New Brunswick, Flemington, Oxford, Freehold, Perkasie, Somerville, West Chester, Allentown, Pottstown, Philadelphia, Morristown, and Chalfont 347 AM EST Sat Jan 13 2024 ...FLOOD WATCH IS CANCELLED... The Flood Watch is cancelled for portions of northern Delaware, including the following area, New Castle, New Jersey, including the following areas, Camden, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Somerset, Sussex, Warren and Western Monmouth, and Pennsylvania, including the following areas, Delaware, Eastern Chester, Eastern Montgomery, Lehigh, Lower Bucks, Northampton, Philadelphia, Upper Bucks, Western Chester and Western Montgomery. Heavy rain is no longer expected to pose a threat. However, river flooding continues to linger on some area water ways. Please continue to heed remaining road closures. $$ SFJ
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 11, 3:46 PM EST | Coastal Flood Warning | PHI | New Castle | 56 hr |
| Jan 11, 3:46 PM EST | Coastal Flood Advisory | PHI | Kent, New Castle, Sussex | 3 days |
| Jan 11, 3:48 PM EST | Wind Advisory | PHI | Kent, New Castle, Sussex | 49 hr |
| Jan 10, 7:11 PM EST | Small Craft Advisory | PHI | 31 hr | |
| Jan 10, 7:39 PM EST | Coastal Flood Advisory | PHI | Burlington, Camden, Gloucester | 8 hr |
| Jan 11, 3:15 AM EST | Storm Watch | PHI | 12 hr | |
| Jan 11, 10:55 AM EST | Coastal Flood Advisory | PHI | Burlington, Camden, Gloucester | 5 hr |
| Jan 11, 3:37 PM EST | Gale Warning | PHI | 3 days | |
| Jan 11, 3:37 PM EST | Storm Warning | PHI | 36 hr |
Nearby
Flood Watches in New Jersey, 2024Flood Watches in Pennsylvania, 2024Flood Watches in Delaware, 2024Every flood watch in 2024
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.