Alert archive / Pennsylvania / Flood Watches in 2023
Flood Watch 3, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flood watch at Jun 27, 2023, 3:02 AM EDT for 7 counties in New Jersey; New Castle County, Delaware; 10 counties in Pennsylvania. It took effect at Jul 2, 2023, 12:00 PM EDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Jun 27, 2023, 3:02 AM EDT (07:02 UTC)
- In effect from
- Jul 2, 2023, 12:00 PM EDT
- Expired
- Jun 27, 2023, 3:48 AM EDT
- In force
- Issued by
- NWS Philadelphia/Mount Holly
- Flood severity
- None
Counties New Castle County, DE, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Berks County, PA, Bucks County, PA, Carbon County, PA, Chester County, PA, Delaware County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 87 km from the middle of the area, began a volume at 07:06 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 00:00Z, 7.0 hours before the alert went out and 200 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
- 482 J/kg
- Mixed-layer CIN
- -74 J/kg
- Mixed-layer LCL
- 987 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 134 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.3
The text
As transmitted.
135
WGUS61 KPHI 270702
FFAPHI
URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Mount Holly NJ
302 AM EDT Tue Jun 27 2023
NJZ001-007>010-PAZ061-062-272000-
/O.NEW.KPHI.FA.A.0003.230702T1600Z-230703T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sussex-Warren-Morris-Hunterdon-Somerset-Lehigh-Northampton-
Including the cities of Flemington, Allentown, Easton, Morristown,
Washington, Bethlehem, Somerville, and Newton
302 AM EDT Tue Jun 27 2023
...FLOOD WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY
EVENING...
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...Portions of New Jersey...and east central Pennsylvania...
including the following counties...in New Jersey...Hunterdon,
Morris, Somerset, Sussex, and Warren. In east central
Pennsylvania...Lehigh and Northampton.
* WHEN...From Sunday afternoon through Sunday evening.
* 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...
- Scattered showers and thunderstorms with locally heavy rain
and expected across the watch area this afternoon and
evening. Widespread rainfall amounts of 2-4 inches occurred
on Monday, saturating the ground. Rainfall amounts of 1-2
inches with localized amounts near 3 inches will be possible
with the showers and thunderstorms today. These totals may
result in additional flash flooding.
- http://www.weather.gov/safety/flood
$$
DEZ001-NJZ012-015-PAZ054-055-060-070-071-101>106-272000-
/O.NEW.KPHI.FA.A.0003.230702T1600Z-230703T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle-Middlesex-Mercer-Carbon-Monroe-Berks-Delaware-
Philadelphia-Western Chester-Eastern Chester-Western Montgomery-
Eastern Montgomery-Upper Bucks-Lower Bucks-
Including the cities of Philadelphia, Kennett Square, Lansdale,
Norristown, Reading, Media, Collegeville, Chalfont, Perkasie,
Morrisville, Doylestown, Trenton, Stroudsburg, Jim Thorpe, New
Brunswick, Oxford, Wilmington, Pottstown, West Chester, and Honey
Brook
302 AM EDT Tue Jun 27 2023
...FLOOD WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY
EVENING...
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...Portions of northern Delaware...New Jersey...and
Pennsylvania...including the following areas...in northern
Delaware...New Castle. In New Jersey...Mercer and Middlesex. In
Pennsylvania...Berks, Carbon, Delaware, Eastern Chester, Eastern
Montgomery, Lower Bucks, Monroe, Philadelphia, Upper Bucks,
Western Chester, and Western Montgomery.
* WHEN...From Sunday afternoon through Sunday evening.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Flooding may occur
in poor drainage and urban areas. Low-water crossings may be
flooded.
* ADDITIONAL DETAILS...
- Scattered showers and thunderstorms with locally heavy rain
and expected across the watch area this afternoon and
evening. Widespread rainfall amounts near 1 inch with locally
higher amounts near 3 inches occurred on Monday, saturating
the ground. Rainfall amounts of 1-2 inches with localized
amounts near 3 inches will be possible with the showers and
thunderstorms today. These totals may result in additional
flash flooding.
- http://www.weather.gov/safety/flood
$$
Staarmann1 follow-up statement
193
WGUS61 KPHI 270748
FFAPHI
URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Mount Holly NJ
348 AM EDT Tue Jun 27 2023
NJZ001-007>010-PAZ061-062-272000-
/O.CAN.KPHI.FA.A.0003.230702T1600Z-230703T0400Z/
/O.NEW.KPHI.FA.A.0004.230627T1600Z-230628T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sussex-Warren-Morris-Hunterdon-Somerset-Lehigh-Northampton-
Including the cities of Flemington, Allentown, Easton, Morristown,
Washington, Bethlehem, Somerville, and Newton
348 AM EDT Tue Jun 27 2023
...FLOOD WATCH IN EFFECT FROM NOON EDT TODAY THROUGH THIS EVENING...
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...Portions of New Jersey...and east central Pennsylvania...
including the following counties...in New Jersey...Hunterdon,
Morris, Somerset, Sussex, and Warren. In east central
Pennsylvania...Lehigh and Northampton.
* WHEN...From Noon EDT today through this evening.
* 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...
- Scattered showers and thunderstorms with locally heavy rain
and expected across the watch area this afternoon and
evening. Widespread rainfall amounts of 2-4 inches occurred
on Monday, saturating the ground. Rainfall amounts of 1-2
inches with localized amounts near 3 inches will be possible
with the showers and thunderstorms today. These totals may
result in additional flash flooding.
- http://www.weather.gov/safety/flood
The Flood Watch is cancelled for portions of New Jersey...and east
central Pennsylvania...including the following counties...in New
Jersey...Hunterdon, Morris, Somerset, Sussex, and Warren. In east
central Pennsylvania...Lehigh and Northampton.
$$
DEZ001-NJZ012-015-PAZ054-055-060-070-071-101>106-272000-
/O.CAN.KPHI.FA.A.0003.230702T1600Z-230703T0400Z/
/O.NEW.KPHI.FA.A.0004.230627T1600Z-230628T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle-Middlesex-Mercer-Carbon-Monroe-Berks-Delaware-
Philadelphia-Western Chester-Eastern Chester-Western Montgomery-
Eastern Montgomery-Upper Bucks-Lower Bucks-
Including the cities of Philadelphia, Kennett Square, Lansdale,
Norristown, Reading, Media, Collegeville, Chalfont, Perkasie,
Morrisville, Doylestown, Trenton, Stroudsburg, Jim Thorpe, New
Brunswick, Oxford, Wilmington, Pottstown, West Chester, and Honey
Brook
348 AM EDT Tue Jun 27 2023
...FLOOD WATCH IN EFFECT FROM NOON EDT TODAY THROUGH THIS EVENING...
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...Portions of northern Delaware...New Jersey...and
Pennsylvania...including the following areas...in northern
Delaware...New Castle. In New Jersey...Mercer and Middlesex. In
Pennsylvania...Berks, Carbon, Delaware, Eastern Chester, Eastern
Montgomery, Lower Bucks, Monroe, Philadelphia, Upper Bucks,
Western Chester, and Western Montgomery.
* WHEN...From Noon EDT today through this evening.
* 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.
* ADDITIONAL DETAILS...
- Scattered showers and thunderstorms with locally heavy rain
and expected across the watch area this afternoon and
evening. Widespread rainfall amounts near 1 inch with locally
higher amounts near 3 inches occurred on Monday, saturating
the ground. Rainfall amounts of 1-2 inches with localized
amounts near 3 inches will be possible with the showers and
thunderstorms today. These totals may result in additional
flash flooding.
- http://www.weather.gov/safety/flood
The Flood Watch is cancelled for portions of northern Delaware...New
Jersey...and Pennsylvania...including the following areas...in
northern Delaware...New Castle. In New Jersey...Mercer and
Middlesex. In Pennsylvania...Berks, Carbon, Delaware, Eastern
Chester, Eastern Montgomery, Lower Bucks, Monroe, Philadelphia,
Upper Bucks, Western Chester, and Western Montgomery.
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 8:42 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Somerset | 48 min |
| Jun 26, 8:56 PM EDT | Areal Flood Advisory | PHI | Sussex | 38 min |
| Jun 26, 8:56 PM EDT | Special Weather Statement | PHI | Warren | 34 min |
| Jun 26, 9:21 PM EDT | Special Weather Statement | PHI | Mercer | 24 min |
| Jun 26, 9:30 PM EDT | Flash Flood Warning | PHI | Warren | 3 hr |
| Jun 26, 9:31 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Somerset | 44 min |
| Jun 26, 9:34 PM EDT | Flash Flood Warning | PHI | Sussex | 2 hr |
| Jun 26, 9:46 PM EDT | Special Marine Warning | PHI | 59 min | |
| Jun 26, 9:51 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 54 min |
| Jun 26, 10:07 PM EDT | Special Weather Statement | PHI | Middlesex, Morris | 23 min |
| Jun 26, 10:26 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 16 min |
| Jun 26, 10:33 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Salem | 42 min |
| Jun 26, 10:41 PM EDT | Areal Flood Advisory | PHI | Sussex, Warren | 84 min |
| Jun 26, 10:54 PM EDT | Areal Flood Advisory | PHI | Camden, Gloucester, Salem | 3 hr |
| Jun 26, 11:07 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Hunterdon, Mercer, Middlesex, Monmouth and 1 more | 53 min |
| Jun 26, 11:27 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Somerset | 3 hr |
| Jun 26, 11:35 PM EDT | Flash Flood Warning | PHI | Mercer | 6 hr |
| Jun 26, 11:42 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Somerset | 33 min |
| Jun 27, 12:00 AM EDT | Areal Flood Warning | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 7 hr |
| Jun 27, 12:12 AM EDT | Special Weather Statement | PHI | Monmouth | 33 min |
| Jun 27, 12:16 AM EDT | Special Marine Warning | PHI | 44 min | |
| Jun 27, 1:26 AM EDT | Special Marine Warning | PHI | 49 min | |
| Jun 27, 2:00 AM EDT | Special Marine Warning | PHI | 45 min | |
| Jun 27, 3:48 AM EDT | Flood Watch | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 5 more | 17 hr |
| Jun 27, 4:04 AM EDT | River Flood Warning | PHI | Morris | 22 hr |
| Jun 27, 11:16 AM EDT | Areal Flood Advisory | PHI | Morris, Sussex | 3 hr |
| Jun 27, 11:42 AM EDT | Areal Flood Advisory | PHI | Monmouth | 2 hr |
| Jun 27, 3:05 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 40 min |
| Jun 27, 3:06 PM EDT | Special Marine Warning | PHI | 54 min | |
| Jun 27, 3:32 PM EDT | Areal Flood Advisory | PHI | Cumberland, Salem | 3 hr |
| Jun 27, 3:38 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 52 min |
| Jun 27, 3:41 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 22 min |
| Jun 27, 3:52 PM EDT | Special Marine Warning | PHI | 53 min | |
| Jun 27, 4:21 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 39 min |
| Jun 27, 4:24 PM EDT | Areal Flood Advisory | PHI | Warren | 3 hr |
| Jun 27, 4:33 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 42 min |
| Jun 27, 4:36 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 26 min |
| Jun 27, 4:39 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer | 51 min |
| Jun 27, 5:01 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Warren | 44 min |
| Jun 27, 5:05 PM EDT | Special Marine Warning | PHI | 25 min | |
| Jun 27, 5:17 PM EDT | Flash Flood Warning | PHI | Salem | 4 hr |
| Jun 27, 5:22 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 38 min |
| Jun 27, 5:23 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 32 min |
| Jun 27, 5:40 PM EDT | Special Weather Statement | PHI | Hunterdon, Somerset | 35 min |
| Jun 27, 5:45 PM EDT | Special Weather Statement | PHI | Warren | 45 min |
| Jun 27, 5:49 PM EDT | Special Weather Statement | PHI | Camden | 26 min |
| Jun 27, 5:52 PM EDT | Areal Flood Advisory | PHI | Sussex, Warren | 3 hr |
| Jun 27, 5:52 PM EDT | Special Weather Statement | PHI | Burlington | 38 min |
| Jun 27, 5:57 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Cumberland, Gloucester, Mercer, Salem | 3 hr |
| Jun 27, 6:08 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 25 min |
| Jun 27, 6:12 PM EDT | Special Weather Statement | PHI | Middlesex, Morris, Somerset | 33 min |
| Jun 27, 6:15 PM EDT | Special Weather Statement | PHI | Warren | 45 min |
| Jun 27, 6:35 PM EDT | Special Weather Statement | PHI | Burlington | 25 min |
| Jun 27, 6:40 PM EDT | Special Marine Warning | PHI | 36 min | |
| Jun 27, 6:46 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 44 min |
| Jun 27, 6:49 PM EDT | Areal Flood Advisory | PHI | Sussex | 3 hr |
| Jun 27, 6:52 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more | 3 hr |
| Jun 27, 7:03 PM EDT | Special Weather Statement | PHI | Sussex | 27 min |
| Jun 27, 7:30 PM EDT | Special Weather Statement | PHI | Sussex | 30 min |
| Jun 27, 7:56 PM EDT | Special Weather Statement | PHI | Atlantic | 34 min |
| Jun 26, 9:19 PM EDT | Special Weather Statement | PHI | New Castle | 26 min |
| Jun 26, 9:25 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 50 min |
| Jun 26, 10:01 PM EDT | Flash Flood Warning | PHI | New Castle | 4 hr |
| Jun 26, 10:46 PM EDT | River Flood Warning | PHI | New Castle | 5 hr |
| Jun 26, 11:09 PM EDT | River Flood Warning | PHI | New Castle | 2 hr |
| Jun 27, 2:09 AM EDT | Special Weather Statement | PHI | New Castle | 21 min |
| Jun 27, 2:29 AM EDT | Special Weather Statement | PHI | New Castle | 31 min |
| Jun 27, 2:37 AM EDT | Flash Flood Warning | PHI | New Castle | 3 hr |
| Jun 27, 5:08 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 37 min |
| Jun 27, 6:18 PM EDT | Special Weather Statement | PHI | Kent | 27 min |
| Jun 26, 8:27 PM EDT | Special Weather Statement | PHI | Chester | 33 min |
| Jun 26, 8:33 PM EDT | Special Weather Statement | PHI | Philadelphia | 27 min |
| Jun 26, 8:36 PM EDT | Special Weather Statement | PHI | Bucks | 24 min |
| Jun 26, 8:40 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 31 min |
| Jun 26, 9:18 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 42 min |
| Jun 26, 9:47 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Montgomery | 43 min |
| Jun 26, 9:58 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 47 min |
| Jun 27, 12:51 AM EDT | Flash Flood Warning | PHI | Chester, Montgomery | 4 hr |
| Jun 27, 1:23 AM EDT | Special Weather Statement | PHI | Montgomery | 37 min |
| Jun 27, 2:23 AM EDT | River Flood Warning | PHI | Chester | 6 hr |
Nearby
Flood Watches in Pennsylvania, 2023Flood Watches in New Jersey, 2023Flood Watches in Delaware, 2023Every flood watch in 2023
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.