Alert archive / New Jersey / Flood Watches in 2020
Flood Watch 1, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flood watch at Feb 5, 2020, 2:56 PM EST for 4 states. It took effect at Feb 6, 2020, 1:00 PM EST. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Feb 5, 2020, 2:56 PM EST (19:56 UTC)
- In effect from
- Feb 6, 2020, 1:00 PM EST
- Expired
- Feb 6, 2020, 8:09 PM EST
- In force
- 7 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Flood severity
- None
All 27 counties
Kent County, DE, New Castle County, DE, Sussex County, DE, Caroline County, MD, Cecil County, MD, Kent County, MD, Queen Anne's County, MD, Talbot 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, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 69 km from the middle of the area, began a volume at 19:59 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
Wallops Is Stn, VA (KWAL), launched 12:00Z, 7.9 hours before the alert went out and 202 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
- 1177 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
201 WGUS61 KPHI 051956 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Mount Holly NJ 256 PM EST Wed Feb 5 2020 DEZ001>004-MDZ008-012-015-019-020-NJZ008>010-012>027-PAZ070-071- 101>106-060400- /O.NEW.KPHI.FA.A.0001.200206T1800Z-200207T2100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD- Queen Annes-Talbot-Caroline-Morris-Hunterdon-Somerset-Middlesex- Western Monmouth-Eastern Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May- Atlantic Coastal Cape May-Coastal Atlantic-Coastal Ocean- Southeastern Burlington-Delaware-Philadelphia-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- Including the cities of Wilmington, Dover, Georgetown, Rehoboth Beach, Elkton, Chestertown, Centreville, Easton, Denton, Morristown, Flemington, Somerville, New Brunswick, Freehold, Sandy Hook, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Cape May Court House, Ocean City, Atlantic City, Long Beach Island, Wharton State Forest, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 256 PM EST Wed Feb 5 2020 ...FLOOD WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY AFTERNOON... The National Weather Service in Mount Holly has issued a * Flood Watch for portions of Delaware, northeast Maryland, New Jersey, and southeast Pennsylvania, including the following areas, in Delaware, Delaware Beaches, Inland Sussex, Kent, and New Castle. In northeast Maryland, Caroline, Cecil, Kent MD, Queen Annes, and Talbot. In New Jersey, Atlantic, Atlantic Coastal Cape May, Camden, Cape May, Coastal Atlantic, Coastal Ocean, Cumberland, Eastern Monmouth, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Ocean, Salem, Somerset, Southeastern Burlington, and Western Monmouth. In southeast Pennsylvania, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Philadelphia, Upper Bucks, Western Chester, and Western Montgomery. * From Thursday afternoon through Friday afternoon. * Light rain will begin to spread into the region tonight and intensify later in the day on Thursday. Periods of heavy rain can be expected to persist into Friday morning. The heavy rain threat will end Friday afternoon. Amounts up to three inches are possible. At this time, the heaviest rain is expected along and east of the I-95 corridor. * As a result of the rainfall, poor drainage and low-lying flooding will likely begin late Thursday. Small stream as well as mainstem flooding is possible Thursday night and Friday. In some cases, flooding on the larger rivers could persist into the weekend. Please refer to the Advanced Hydrologic Prediction Service (AHPS) website for the latest crest forecasts. 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. && $$ Kruzdlo/Staarmann
4 follow-up statements
946 WGUS61 KPHI 060140 FFAPHI Flood Watch National Weather Service Mount Holly NJ 840 PM EST Wed Feb 5 2020 DEZ001>004-MDZ008-012-015-019-020-NJZ008>010-012>027-PAZ070-071- 101>106-061200- /O.CON.KPHI.FA.A.0001.200206T1800Z-200207T2100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD- Queen Annes-Talbot-Caroline-Morris-Hunterdon-Somerset-Middlesex- Western Monmouth-Eastern Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May- Atlantic Coastal Cape May-Coastal Atlantic-Coastal Ocean- Southeastern Burlington-Delaware-Philadelphia-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- Including the cities of Wilmington, Dover, Georgetown, Rehoboth Beach, Elkton, Chestertown, Centreville, Easton, Denton, Morristown, Flemington, Somerville, New Brunswick, Freehold, Sandy Hook, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Cape May Court House, Ocean City, Atlantic City, Long Beach Island, Wharton State Forest, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 840 PM EST Wed Feb 5 2020 ...FLOOD WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY AFTERNOON... The Flood Watch continues for * Northeastern Maryland, Delaware, southeastern Pennsylvania and much of New Jersey. * From Thursday afternoon through Friday afternoon * Light rain will spread into the region tonight and intensify later in the day on Thursday. Periods of heavy rain can be expected to persist into Friday morning. The heavy rain threat will end Friday afternoon. Amounts up to three inches are possible. At this time, the heaviest rain is expected along and east of the I-95 corridor. * As a result of the rainfall, poor drainage and low-lying flooding will likely begin late Thursday. Small stream as well as mainstem flooding is possible Thursday night and Friday. In some cases, flooding on the larger rivers could persist into the weekend. Please refer to the Advanced Hydrologic Prediction Service (AHPS) website for the latest crest forecasts. 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. && $$
633 WGUS61 KPHI 060846 FFAPHI Flood Watch National Weather Service Mount Holly NJ 346 AM EST Thu Feb 6 2020 DEZ001>004-MDZ008-012-015-019-020-NJZ008>010-012>027-PAZ070-071- 101>106-062100- /O.CON.KPHI.FA.A.0001.200206T1800Z-200207T2100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD- Queen Annes-Talbot-Caroline-Morris-Hunterdon-Somerset-Middlesex- Western Monmouth-Eastern Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May- Atlantic Coastal Cape May-Coastal Atlantic-Coastal Ocean- Southeastern Burlington-Delaware-Philadelphia-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- Including the cities of Wilmington, Dover, Georgetown, Rehoboth Beach, Elkton, Chestertown, Centreville, Easton, Denton, Morristown, Flemington, Somerville, New Brunswick, Freehold, Sandy Hook, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Cape May Court House, Ocean City, Atlantic City, Long Beach Island, Wharton State Forest, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 346 AM EST Thu Feb 6 2020 ...FLOOD WATCH REMAINS IN EFFECT FROM 1 PM EST THIS AFTERNOON THROUGH FRIDAY AFTERNOON... The Flood Watch continues for * Portions of Delaware, northeast Maryland, New Jersey, and southeast Pennsylvania, including the following areas, in Delaware, Delaware Beaches, Inland Sussex, Kent, and New Castle. In northeast Maryland, Caroline, Cecil, Kent MD, Queen Annes, and Talbot. In New Jersey, Atlantic, Atlantic Coastal Cape May, Camden, Cape May, Coastal Atlantic, Coastal Ocean, Cumberland, Eastern Monmouth, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Ocean, Salem, Somerset, Southeastern Burlington, and Western Monmouth. In southeast Pennsylvania, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Philadelphia, Upper Bucks, Western Chester, and Western Montgomery. * From 1 PM EST this afternoon through Friday afternoon * Heavy rain is possible starting this afternoon. Periods of heavy rain may persist into Friday morning. The heavy rain threat will end Friday afternoon. Amounts up to three inches are possible. At this time, the heaviest rain is expected east of the I-95 corridor. * As a result of the rainfall, poor drainage and low-lying flooding may begin this afternoon. Small stream as well as mainstem flooding is possible Thursday night and Friday. In some cases, flooding on the larger rivers could persist into the weekend. Please refer to the Advanced Hydrologic Prediction Service (AHPS) website for the latest crest forecasts. 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. && $$ Johnson
540 WGUS61 KPHI 062029 FFAPHI Flood Watch National Weather Service Mount Holly NJ 329 PM EST Thu Feb 6 2020 NJZ008>010-PAZ103-105-062130- /O.CAN.KPHI.FA.A.0001.000000T0000Z-200207T2100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Morris-Hunterdon-Somerset-Western Montgomery-Upper Bucks- Including the cities of Morristown, Flemington, Somerville, Collegeville, Pottstown, Chalfont, and Perkasie 329 PM EST Thu Feb 6 2020 ...FLOOD WATCH IS CANCELLED... The Flood Watch for portions of New Jersey and southeast Pennsylvania has been cancelled. The heaviest rain the next 24 hours will fall over the New Jersey coastal plain and Delmarva. While rain and river rises are still anticipated across southeast Pennsylvania and northern New Jersey, water levels are expected to remain below flood stage. $$ DEZ001>004-MDZ008-012-015-019-020-NJZ012>027-PAZ070-071-101-102- 104-106-070430- /O.CON.KPHI.FA.A.0001.000000T0000Z-200207T2100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD- Queen Annes-Talbot-Caroline-Middlesex-Western Monmouth- Eastern Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May- Atlantic Coastal Cape May-Coastal Atlantic-Coastal Ocean- Southeastern Burlington-Delaware-Philadelphia-Western Chester- Eastern Chester-Eastern Montgomery-Lower Bucks- Including the cities of Wilmington, Dover, Georgetown, Rehoboth Beach, Elkton, Chestertown, Centreville, Easton, Denton, New Brunswick, Freehold, Sandy Hook, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Cape May Court House, Ocean City, Atlantic City, Long Beach Island, Wharton State Forest, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 329 PM EST Thu Feb 6 2020 ...FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY AFTERNOON... The Flood Watch continues for * Portions of Delaware, northeast Maryland, New Jersey, and southeast Pennsylvania, including the following areas, in Delaware, Delaware Beaches, Inland Sussex, Kent, and New Castle. In northeast Maryland, Caroline, Cecil, Kent MD, Queen Annes, and Talbot. In New Jersey, Atlantic, Atlantic Coastal Cape May, Camden, Cape May, Coastal Atlantic, Coastal Ocean, Cumberland, Eastern Monmouth, Gloucester, Mercer, Middlesex, Northwestern Burlington, Ocean, Salem, Southeastern Burlington, and Western Monmouth. In southeast Pennsylvania, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Philadelphia, and Western Chester. * Through Friday afternoon * Periods of heavy rain can be expected this afternoon and into Friday morning. Amounts up to two and one-half inches are possible. The heaviest rain is now expected east of the I-95 corridor. * As a result of the rainfall, poor drainage and low-lying flooding will likely begin late this afternoon and persist overnight. Small stream and creek flooding is possible tonight and Friday. The Rancocas Creek in Burlington County, New Jersey will not crest until Friday night or Saturday. Please refer to the Advanced Hydrologic Prediction Service (AHPS) website for the latest crest forecasts. 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. && $$
427 WGUS61 KPHI 070109 FFAPHI Flood Watch National Weather Service Mount Holly NJ 809 PM EST Thu Feb 6 2020 DEZ001>004-MDZ008-012-015-019-020-NJZ012>027-PAZ070-071-101-102- 104-106-070215- /O.CAN.KPHI.FA.A.0001.000000T0000Z-200207T2100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD- Queen Annes-Talbot-Caroline-Middlesex-Western Monmouth- Eastern Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May- Atlantic Coastal Cape May-Coastal Atlantic-Coastal Ocean- Southeastern Burlington-Delaware-Philadelphia-Western Chester- Eastern Chester-Eastern Montgomery-Lower Bucks- Including the cities of Wilmington, Dover, Georgetown, Rehoboth Beach, Elkton, Chestertown, Centreville, Easton, Denton, New Brunswick, Freehold, Sandy Hook, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Cape May Court House, Ocean City, Atlantic City, Long Beach Island, Wharton State Forest, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 809 PM EST Thu Feb 6 2020 ...FLOOD WATCH IS CANCELLED... The Flood Watch for portions of Delaware, northeast Maryland, New Jersey, and southeast Pennsylvania has been cancelled. While continued light to moderate rain can be expected, the area of heaviest rainfall is now expected to remain southeast of our region. No more than nuisance flooding can be expected, and the flood watch has been cancelled. $$ JEO
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 5, 3:15 PM EST | Gale Watch | PHI | 13 hr | |
| Feb 5, 3:15 PM EST | Small Craft Advisory | PHI | 39 hr |
Nearby
Flood Watches in New Jersey, 2020Flood Watches in Maryland, 2020Flood Watches in Pennsylvania, 2020Every flood watch in 2020
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.