Alert archive / New Jersey / Flood Watches in 2017
Flood Watch 2, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flood watch at Mar 31, 2017, 3:41 AM EDT for 4 states. It took effect at Mar 31, 2017, 12:00 PM EDT. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Mar 31, 2017, 3:41 AM EDT (07:41 UTC)
- In effect from
- Mar 31, 2017, 12:00 PM EDT
- Expired
- Mar 31, 2017, 11:42 PM EDT
- In force
- 12 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Flood severity
- None
All 26 counties
New Castle County, DE, Cecil County, MD, Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Salem County, NJ, Somerset County, NJ, Warren County, NJ, Berks County, PA, Bucks County, PA, Carbon 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), 60 km from the middle of the area, began a volume at 07:43 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, 7.7 hours before the alert went out and 206 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
- 1601 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- -25 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
029 WGUS61 KPHI 310741 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Mount Holly NJ 341 AM EDT Fri Mar 31 2017 ...HEAVY RAINFALL IS EXPECTED THIS AFTERNOON AND TONIGHT... DEZ001-MDZ008-NJZ007>010-012>020-027-PAZ054-060>062-070-071- 101>106-311545- /O.NEW.KPHI.FA.A.0002.170331T1600Z-170401T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Cecil-Warren-Morris-Hunterdon-Somerset-Middlesex- Western Monmouth-Eastern Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Southeastern Burlington-Carbon- Berks-Lehigh-Northampton-Delaware-Philadelphia-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- Including the cities of Wilmington, Elkton, Washington, Morristown, Flemington, Somerville, New Brunswick, Freehold, Sandy Hook, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Wharton State Forest, Jim Thorpe, Reading, Allentown, Bethlehem, Easton, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 341 AM EDT Fri Mar 31 2017 ...FLOOD WATCH IN EFFECT FROM NOON EDT TODAY THROUGH LATE TONIGHT... The National Weather Service in Mount Holly has issued a * Flood Watch for portions of northern Delaware, northeast Maryland, New Jersey, and Pennsylvania, including the following areas, in northern Delaware, New Castle. In northeast Maryland, Cecil. In New Jersey, Camden, Eastern Monmouth, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Ocean, Salem, Somerset, Southeastern Burlington, Warren, and Western Monmouth. In Pennsylvania, Berks, Carbon, Delaware, Eastern Chester, Eastern Montgomery, Lehigh, Lower Bucks, Northampton, Philadelphia, Upper Bucks, Western Chester, and Western Montgomery. * From noon EDT today through late tonight * Low pressure moving through the Mid Atlantic will lead to a swath of heavy rainfall along and to the northwest of the I-95 corridor. Widespread rainfall amounts of 2 to 3 inches are expected with localized amounts to 4 inches possible. The heaviest rain is expected to move through the area from southwest to northeast this afternoon and evening. * THE HEAVY RAINFALL MAY RESULT IN FLOODING ALONG AREA STREAMS AND CREEKS AS WELL AS URBAN AND POOR DRAINAGE FLOODING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. 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. && $$ LF/JRK
5 follow-up statements
137 WGUS61 KPHI 310742 CCA FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch...CORRECTED National Weather Service Mount Holly NJ 342 AM EDT Fri Mar 31 2017 ...HEAVY RAINFALL IS EXPECTED THIS AFTERNOON AND TONIGHT... DEZ001-MDZ008-NJZ007>010-012>020-027-PAZ054-060>062-070-071- 101>106-311945- /O.COR.KPHI.FA.A.0002.170331T1600Z-170401T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Cecil-Warren-Morris-Hunterdon-Somerset-Middlesex- Western Monmouth-Eastern Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Southeastern Burlington-Carbon- Berks-Lehigh-Northampton-Delaware-Philadelphia-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- Including the cities of Wilmington, Elkton, Washington, Morristown, Flemington, Somerville, New Brunswick, Freehold, Sandy Hook, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Wharton State Forest, Jim Thorpe, Reading, Allentown, Bethlehem, Easton, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 342 AM EDT Fri Mar 31 2017 ...FLOOD WATCH IN EFFECT FROM NOON EDT TODAY THROUGH LATE TONIGHT... The National Weather Service in Mount Holly has issued a * Flood Watch for portions of northern Delaware, northeast Maryland, New Jersey, and Pennsylvania, including the following areas, in northern Delaware, New Castle. In northeast Maryland, Cecil. In New Jersey, Camden, Eastern Monmouth, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Ocean, Salem, Somerset, Southeastern Burlington, Warren, and Western Monmouth. In Pennsylvania, Berks, Carbon, Delaware, Eastern Chester, Eastern Montgomery, Lehigh, Lower Bucks, Northampton, Philadelphia, Upper Bucks, Western Chester, and Western Montgomery. * From noon EDT today through late tonight * Low pressure moving through the Mid Atlantic will lead to a swath of heavy rainfall along and to the northwest of the I-95 corridor. Widespread rainfall amounts of 2 to 3 inches are expected with localized amounts to 4 inches possible. The heaviest rain is expected to move through the area from southwest to northeast this afternoon and evening. * The heavy rainfall may result in flooding along area stream and creeks as well as urban and poor drainage flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. 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. && $$ LF/JRK
587 WGUS61 KPHI 311903 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Mount Holly NJ 303 PM EDT Fri Mar 31 2017 ...HEAVY RAINFALL IS EXPECTED INTO TONIGHT... NJZ021>023-010600- /O.EXA.KPHI.FA.A.0002.000000T0000Z-170401T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Cumberland-Atlantic-Cape May- Including the cities of Millville, Hammonton, and Cape May Court House 303 PM EDT Fri Mar 31 2017 ...FLOOD WATCH IN EFFECT UNTIL 2 AM EDT SATURDAY... The National Weather Service in Mount Holly has expanded the * Flood Watch to include a portion of southern New Jersey, including the following areas, Atlantic, Cape May, and Cumberland. * Until 2 AM EDT Saturday * Low pressure moving through the Mid Atlantic will lead to a swath of heavy rainfall over the coastal plain of southern new jersey. Widespread rainfall amounts of 2 to 3 inches are expected. Between 1 and 2 inches had already fallen by mid- afternoon on Friday. An additional inch or so is expected across a good portion of the watch area by about midnight...then end from west to east by Saturday morning. * The heavy rainfall may result in flooding along area stream and creeks as well as urban and poor drainage flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. 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. && $$ DEZ001-MDZ008-NJZ007>010-012>020-027-PAZ054-060>062-070-071- 101>106-010600- /O.CON.KPHI.FA.A.0002.000000T0000Z-170401T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Cecil-Warren-Morris-Hunterdon-Somerset-Middlesex- Western Monmouth-Eastern Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Southeastern Burlington-Carbon- Berks-Lehigh-Northampton-Delaware-Philadelphia-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- Including the cities of Wilmington, Elkton, Washington, Morristown, Flemington, Somerville, New Brunswick, Freehold, Sandy Hook, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Wharton State Forest, Jim Thorpe, Reading, Allentown, Bethlehem, Easton, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 303 PM EDT Fri Mar 31 2017 ...FLOOD WATCH REMAINS IN EFFECT UNTIL 2 AM EDT SATURDAY... The Flood Watch continues for * Portions of northern Delaware, northeast Maryland, New Jersey, and Pennsylvania, including the following areas, in northern Delaware, New Castle. In northeast Maryland, Cecil. In New Jersey, Camden, Eastern Monmouth, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Ocean, Salem, Somerset, Southeastern Burlington, Warren, and Western Monmouth. In Pennsylvania, Berks, Carbon, Delaware, Eastern Chester, Eastern Montgomery, Lehigh, Lower Bucks, Northampton, Philadelphia, Upper Bucks, Western Chester, and Western Montgomery. * Until 2 AM EDT Saturday * Low pressure moving through the Mid Atlantic will lead to a swath of heavy rainfall along and to the northwest of the I-95 corridor. Widespread rainfall amounts of 2 to 3 inches are expected with localized amounts to 4 inches possible. Between 1 and 2 inches had already fallen by mid-afternoon on Friday. The heaviest rain is expected to move through the area from southwest to northeast this afternoon and evening. * The heavy rainfall may result in flooding along area stream and creeks as well as urban and poor drainage flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. 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. && $$
456 WGUS61 KPHI 311945 FFAPHI Flood Watch National Weather Service Mount Holly NJ 345 PM EDT Fri Mar 31 2017 ...HEAVY RAINFALL IS EXPECTED INTO TONIGHT... DEZ001-MDZ008-NJZ007>010-012>023-027-PAZ054-060>062-070-071- 101>106-010600- /O.CON.KPHI.FA.A.0002.000000T0000Z-170401T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Cecil-Warren-Morris-Hunterdon-Somerset-Middlesex- Western Monmouth-Eastern Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May- Southeastern Burlington-Carbon-Berks-Lehigh-Northampton-Delaware- Philadelphia-Western Chester-Eastern Chester-Western Montgomery- Eastern Montgomery-Upper Bucks-Lower Bucks- Including the cities of Wilmington, Elkton, Washington, Morristown, Flemington, Somerville, New Brunswick, Freehold, Sandy Hook, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Cape May Court House, Wharton State Forest, Jim Thorpe, Reading, Allentown, Bethlehem, Easton, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 345 PM EDT Fri Mar 31 2017 ...FLOOD WATCH REMAINS IN EFFECT UNTIL 2 AM EDT SATURDAY... The Flood Watch continues for * Portions of northern Delaware, northeast Maryland, New Jersey, and Pennsylvania, including the following areas, in northern Delaware, New Castle. In northeast Maryland, Cecil. In New Jersey, Atlantic, Camden, Cape May, Cumberland, Eastern Monmouth, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Ocean, Salem, Somerset, Southeastern Burlington, Warren, and Western Monmouth. In Pennsylvania, Berks, Carbon, Delaware, Eastern Chester, Eastern Montgomery, Lehigh, Lower Bucks, Northampton, Philadelphia, Upper Bucks, Western Chester, and Western Montgomery. * Until 2 AM EDT Saturday * Low pressure moving through the Mid Atlantic will lead to a swath of heavy rainfall across much of eastern Pennsylvania, northern Delmarva, and the coastal plain of southern New Jersey. By the time the heavy rain ends later tonight, storm totals of 1 to 3 inches are expected. * The heavy rainfall may result in flooding along area stream and creeks as well as urban and poor drainage flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. 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. && $$
826 WGUS61 KPHI 010104 FFAPHI Flood Watch National Weather Service Mount Holly NJ 904 PM EDT Fri Mar 31 2017 MDZ008-NJZ007-008-016>023-027-PAZ054-060>062-010215- /O.CAN.KPHI.FA.A.0002.000000T0000Z-170401T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Cecil-Warren-Morris-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May- Southeastern Burlington-Carbon-Berks-Lehigh-Northampton- Including the cities of Elkton, Washington, Morristown, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Cape May Court House, Wharton State Forest, Jim Thorpe, Reading, Allentown, Bethlehem, and Easton 904 PM EDT Fri Mar 31 2017 ...FLOOD WATCH IS CANCELLED... The Flood Watch has been cancelled for the following areas, the Pennsylvania counties of Carbon, Berks, Lehigh and Northampton and the New Jersey counties of Warren and Morris. Also, the Flood Watch has been cancelled for southern New Jersey and for northeastern Maryland. $$ DEZ001-NJZ009-010-012>015-PAZ070-071-101>106-010600- /O.CON.KPHI.FA.A.0002.000000T0000Z-170401T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Hunterdon-Somerset-Middlesex-Western Monmouth- Eastern Monmouth-Mercer-Delaware-Philadelphia-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- Including the cities of Wilmington, Flemington, Somerville, New Brunswick, Freehold, Sandy Hook, Trenton, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 904 PM EDT Fri Mar 31 2017 ...FLOOD WATCH REMAINS IN EFFECT UNTIL 2 AM EDT SATURDAY... The Flood Watch continues for * Northern Delaware, southeastern Pennsylvania, and the New Jersey counties of Monmouth, Hunterdon, Mercer, Middlesex and Somerset. * Until 2 AM EDT Saturday * Rainfall totals of 1 to 3 inches were common across northern Delaware, southeastern Pennsylvania and central and northern New Jersey today. Runoff from the heavy rain will continue to cause minor flooding of streams and creeks into tonight. Also, standing water will remain in areas of poor drainage. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means that there is a potential for flooding. Please monitor the forecast and be alert for possible Flood Warnings. If you live in an area that is prone to flooding, be prepared to take action if flooding develops. && $$ Iovino
814 WGUS61 KPHI 010342 FFAPHI Flood Watch National Weather Service Mount Holly NJ 1142 PM EDT Fri Mar 31 2017 DEZ001-NJZ009-010-012>015-PAZ070-071-101>106-010445- /O.CAN.KPHI.FA.A.0002.000000T0000Z-170401T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Hunterdon-Somerset-Middlesex-Western Monmouth- Eastern Monmouth-Mercer-Delaware-Philadelphia-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- Including the cities of Wilmington, Flemington, Somerville, New Brunswick, Freehold, Sandy Hook, Trenton, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 1142 PM EDT Fri Mar 31 2017 ...FLOOD WATCH IS CANCELLED... The Flood Watch for portions of northern Delaware, New Jersey, and southeast Pennsylvania has been cancelled. The heavy rain that prompted the watch has moved east of the area, and the threat for flooding has diminished. Please refer to the Flood Warning and Flood Advisories that are currently in effect for portions of the area tonight. $$ Franck
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 10:12 PM EDT | Special Weather Statement | PHI | Montgomery | 33 min |
| Mar 30, 10:57 PM EDT | Special Weather Statement | PHI | Berks, Lehigh | 33 min |
| Mar 31, 4:50 PM EDT | Areal Flood Advisory | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 1 more | 9 hr |
| Mar 31, 7:16 PM EDT | River Flood Warning | PHI | Chester | 8 hr |
| Mar 31, 2:59 AM EDT | Coastal Flood Advisory | PHI | Middlesex, Monmouth, Ocean | 25 hr |
| Mar 31, 4:36 PM EDT | Areal Flood Advisory | PHI | Monmouth, Ocean | 4 hr |
| Mar 31, 5:20 PM EDT | Areal Flood Warning | PHI | Hunterdon, Somerset | 3 hr |
| Mar 31, 6:05 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Ocean | 3 hr |
| Mar 31, 6:30 PM EDT | Areal Flood Advisory | PHI | Mercer, Middlesex, Monmouth, Somerset | 7 hr |
| Mar 31, 5:35 PM EDT | River Flood Warning | PHI | New Castle | 8 hr |
Nearby
Flood Watches in New Jersey, 2017Flood Watches in Pennsylvania, 2017Flood Watches in Maryland, 2017Every flood watch in 2017
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.