Alert archive / New Jersey / Flood Watches in 2019
Flood Watch 3, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flood watch at Mar 21, 2019, 3:22 AM EDT for 4 states. It took effect at Mar 21, 2019, 8:00 AM EDT. It was in force for 19 hr.
The area
The counties it named.
The facts
- Issued
- Mar 21, 2019, 3:22 AM EDT (07:22 UTC)
- In effect from
- Mar 21, 2019, 8:00 AM EDT
- Expired
- Mar 22, 2019, 3:16 AM EDT
- In force
- 19 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Flood severity
- None
All 21 counties
New Castle County, DE, Cecil County, MD, Kent County, MD, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Morris County, NJ, Salem County, NJ, Somerset County, NJ, Warren County, NJ, Berks County, PA, 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), 72 km from the middle of the area, began a volume at 07:23 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, 7.4 hours before the alert went out and 214 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
- 1392 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 114 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
881 WGUS61 KPHI 210722 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Mount Holly NJ 322 AM EDT Thu Mar 21 2019 DEZ001-MDZ008-012-NJZ007>010-012-015>019-PAZ060>062-070-071- 101>106-212000- /O.NEW.KPHI.FA.A.0003.190321T1200Z-190322T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Cecil-Kent MD-Warren-Morris-Hunterdon-Somerset- Middlesex-Mercer-Salem-Gloucester-Camden-Northwestern Burlington- Berks-Lehigh-Northampton-Delaware-Philadelphia-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- Including the cities of Wilmington, Elkton, Chestertown, Washington, Morristown, Flemington, Somerville, New Brunswick, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Reading, Allentown, Bethlehem, Easton, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 322 AM EDT Thu Mar 21 2019 ...FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING 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 and Kent MD. In New Jersey, Camden, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Salem, Somerset, and Warren. In Pennsylvania, Berks, Delaware, Eastern Chester, Eastern Montgomery, Lehigh, Lower Bucks, Northampton, Philadelphia, Upper Bucks, Western Chester, and Western Montgomery. * From 8 AM EDT this morning through late tonight * Between 1.5 and 2 inches of rain with locally higher amounts will fall throughout the day today and into tonight. * Bands of moderate to locally heavy rain will develop across the region today, and will continue through tonight. In the areas of heaviest rainfall, urban and poor-drainage flooding may occur. 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. && $$ MPS
4 follow-up statements
784 WGUS61 KPHI 211308 FFAPHI Flood Watch National Weather Service Mount Holly NJ 908 AM EDT Thu Mar 21 2019 DEZ001-MDZ008-012-NJZ007>010-012-015>019-PAZ060>062-070-071- 101>106-212115- /O.CON.KPHI.FA.A.0003.000000T0000Z-190322T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Cecil-Kent MD-Warren-Morris-Hunterdon-Somerset- Middlesex-Mercer-Salem-Gloucester-Camden-Northwestern Burlington- Berks-Lehigh-Northampton-Delaware-Philadelphia-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- Including the cities of Wilmington, Elkton, Chestertown, Washington, Morristown, Flemington, Somerville, New Brunswick, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Reading, Allentown, Bethlehem, Easton, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 908 AM EDT Thu Mar 21 2019 ...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT... 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 and Kent MD. In New Jersey, Camden, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Salem, Somerset, and Warren. In Pennsylvania, Berks, Delaware, Eastern Chester, Eastern Montgomery, Lehigh, Lower Bucks, Northampton, Philadelphia, Upper Bucks, Western Chester, and Western Montgomery. * Through late tonight * Between 1.5 and 2.5 inches of rain with locally higher amounts will fall throughout the day today and into tonight. * Bands of moderate to heavy rain will develop across the region today, and will continue through tonight. Urban, poor drainage, and small stream flooding may occur. In addition, rises on main stem rivers can be expected with the potential for some points to exceed flood stage. 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. && $$ Fitzsimmons
751 WGUS61 KPHI 211907 FFAPHI Flood Watch National Weather Service Mount Holly NJ 307 PM EDT Thu Mar 21 2019 DEZ001-MDZ008-012-NJZ007>010-012-015>019-PAZ060>062-070-071- 101>106-220315- /O.CON.KPHI.FA.A.0003.000000T0000Z-190322T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Cecil-Kent MD-Warren-Morris-Hunterdon-Somerset- Middlesex-Mercer-Salem-Gloucester-Camden-Northwestern Burlington- Berks-Lehigh-Northampton-Delaware-Philadelphia-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- Including the cities of Wilmington, Elkton, Chestertown, Washington, Morristown, Flemington, Somerville, New Brunswick, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Reading, Allentown, Bethlehem, Easton, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 307 PM EDT Thu Mar 21 2019 ...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT... 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 and Kent MD. In New Jersey, Camden, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Salem, Somerset, and Warren. In Pennsylvania, Berks, Delaware, Eastern Chester, Eastern Montgomery, Lehigh, Lower Bucks, Northampton, Philadelphia, Upper Bucks, Western Chester, and Western Montgomery. * Through late tonight * Storm total rainfall amounts of 1.5 to 2.5 inches with locally higher amounts will fall throughout the day today and into tonight. * Bands of moderate to heavy rain will continue to affect the area through this evening before diminishing in intensity overnight and tapering to scattered showers by Friday. Urban, poor drainage, and small stream flooding may occur this afternoon and this evening with rises on the mainstem rivers potentially resulting in some points exceeding flood stage overnight. 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. && $$
460 WGUS61 KPHI 212321 FFAPHI Flood Watch National Weather Service Mount Holly NJ 721 PM EDT Thu Mar 21 2019 DEZ001-MDZ008-012-NJZ007>010-012-015>019-PAZ060>062-070-071- 101>106-220730- /O.CON.KPHI.FA.A.0003.000000T0000Z-190322T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Cecil-Kent MD-Warren-Morris-Hunterdon-Somerset- Middlesex-Mercer-Salem-Gloucester-Camden-Northwestern Burlington- Berks-Lehigh-Northampton-Delaware-Philadelphia-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- Including the cities of Wilmington, Elkton, Chestertown, Washington, Morristown, Flemington, Somerville, New Brunswick, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Reading, Allentown, Bethlehem, Easton, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 721 PM EDT Thu Mar 21 2019 ...FLOOD WATCH REMAINS IN EFFECT UNTIL 6 AM EDT FRIDAY... The Flood Watch continues for * Northern Delaware, northeastern Maryland, portions of western, central, and northern New Jersey, and southeastern Pennsylvania. This includes the following areas, in northern Delaware, New Castle. In northeast Maryland, Cecil and Kent MD. In New Jersey, Camden, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Salem, Somerset, and Warren. In Pennsylvania, Berks, Delaware, Eastern Chester, Eastern Montgomery, Lehigh, Lower Bucks, Northampton, Philadelphia, Upper Bucks, Western Chester, and Western Montgomery. * Until 6 AM EDT Friday * Rain will continue overnight. Storm total rainfall amounts of 1.5 to 3 inches are possible. * Bands of moderate to heavy rain will continue to affect the area through this evening before diminishing in intensity early Friday morning. Urban, poor drainage, and small stream flooding continues to be possible tonight. The threat for river flooding, especially in southeastern Pennsylvania increases overnight. 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. && $$ SFJ
226 WGUS61 KPHI 220716 FFAPHI Flood Watch National Weather Service Mount Holly NJ 316 AM EDT Fri Mar 22 2019 DEZ001-MDZ008-012-NJZ007>010-012-015>019-PAZ060>062-070-071- 101>106-220830- /O.CAN.KPHI.FA.A.0003.000000T0000Z-190322T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Cecil-Kent MD-Warren-Morris-Hunterdon-Somerset- Middlesex-Mercer-Salem-Gloucester-Camden-Northwestern Burlington- Berks-Lehigh-Northampton-Delaware-Philadelphia-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- Including the cities of Wilmington, Elkton, Chestertown, Washington, Morristown, Flemington, Somerville, New Brunswick, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Reading, Allentown, Bethlehem, Easton, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 316 AM EDT Fri Mar 22 2019 ...FLOOD WATCH IS CANCELLED... The Flood Watch for portions of northern Delaware, northeast Maryland, New Jersey, and Pennsylvania has been cancelled. The heaviest of the rain has ended, and any lingering flooding will gradually subside. $$ MPS
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 20, 8:18 PM EDT | Coastal Flood Advisory | PHI | Bucks, Delaware, Philadelphia | 34 hr |
| Mar 21, 4:19 PM EDT | Areal Flood Advisory | PHI | Berks, Chester, Montgomery | 12 hr |
| Mar 21, 3:23 AM EDT | Gale Watch | PHI | 12 hr | |
| Mar 21, 5:20 AM EDT | Coastal Flood Warning | PHI | Middlesex, Monmouth | 20 hr |
| Mar 21, 2:57 PM EDT | Gale Warning | PHI | 51 hr |
Nearby
Flood Watches in New Jersey, 2019Flood Watches in Pennsylvania, 2019Flood Watches in Maryland, 2019Every flood watch in 2019
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.