Alert archive / New Jersey / Flood Watches in 2020
Flood Watch 3, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flood watch at Oct 28, 2020, 3:10 PM EDT for 4 states. It took effect at Oct 29, 2020, 6:00 AM EDT. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Oct 28, 2020, 3:10 PM EDT (19:10 UTC)
- In effect from
- Oct 29, 2020, 6:00 AM EDT
- Expired
- Oct 29, 2020, 6:02 PM EDT
- In force
- 12 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Flood severity
- None
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, Ocean County, NJ, Salem County, NJ, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Dover AFB radar (KDOX), 73 km from the middle of the area, began a volume at 19:10 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, 7.2 hours before the alert went out and 173 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
- 602 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 150 m²/s²
- 0-3 km storm-relative helicity
- 186 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
770 WGUS61 KPHI 281910 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Mount Holly NJ 310 PM EDT Wed Oct 28 2020 DEZ001>004-MDZ008-012-015-019-020-NJZ016>027-PAZ070-071-101>104- 290815- /O.NEW.KPHI.FA.A.0003.201029T1000Z-201030T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD- Queen Annes-Talbot-Caroline-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- Including the cities of Wilmington, Dover, Georgetown, Rehoboth Beach, Elkton, Chestertown, Centreville, Easton, Denton, 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, and Lansdale 310 PM EDT Wed Oct 28 2020 ...FLOOD WATCH IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING... The National Weather Service in Mount Holly has issued a * Flood Watch for Delaware, northeast Maryland, South Jersey, and far southeastern Pennsylvania. * From Thursday morning through Thursday evening * The remnants of Zeta will be moving through our region, bringing a few waves of heavy rain from Thursday morning through Thursday evening. Storm total rain of 2 to 4 inches is possible across the watch area. This could lead to overland and road flooding as well as small stream 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. && $$ Johnson
4 follow-up statements
974 WGUS61 KPHI 290015 FFAPHI Flood Watch National Weather Service Mount Holly NJ 815 PM EDT Wed Oct 28 2020 DEZ001>004-MDZ008-012-015-019-020-NJZ016>027-PAZ070-071-101>104- 291000- /O.CON.KPHI.FA.A.0003.201029T1000Z-201030T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD-Queen Annes-Talbot-Caroline-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- Including the cities of Glassboro, Denton, Elkton, Jackson, Media, Philadelphia, Pennsville, Honey Brook, Centreville, Norristown, Georgetown, Mount Holly, Ocean City, Cherry Hill, Moorestown, Pottstown, Hammonton, Cape May Court House, Oxford, Kennett Square, Easton, Chestertown, West Chester, Millville, Wilmington, Dover, Lansdale, Wharton State Forest, Atlantic City, Collegeville, Long Beach Island, Camden, and Rehoboth Beach 815 PM EDT Wed Oct 28 2020 ...FLOOD WATCH REMAINS IN EFFECT FROM 6 AM EDT THURSDAY THROUGH THURSDAY EVENING... The Flood Watch continues for * Portions of Delaware...northeast Maryland...southern 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 southern New Jersey...Atlantic, Atlantic Coastal Cape May, Camden, Cape May, Coastal Atlantic, Coastal Ocean, Cumberland, Gloucester, Northwestern Burlington, Ocean, Salem, and Southeastern Burlington. In southeast Pennsylvania...Delaware, Eastern Chester, Eastern Montgomery, Philadelphia, Western Chester, and Western Montgomery. * From 6 AM EDT Thursday through Thursday evening * The remnants of Zeta will be moving through our region, bringing a few waves of heavy rain from Thursday morning through Thursday evening. Storm total rain of 2 to 4 inches is possible across the watch area. This could lead to overland and road flooding as well as small stream 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. && $$ Deal
855 WGUS61 KPHI 290719 FFAPHI Flood Watch National Weather Service Mount Holly NJ 319 AM EDT Thu Oct 29 2020 DEZ001>004-MDZ008-012-015-019-020-NJZ016>027-PAZ070-071-101>104- 292000- /O.CON.KPHI.FA.A.0003.201029T1000Z-201030T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD-Queen Annes-Talbot-Caroline-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- Including the cities of Glassboro, Denton, Elkton, Jackson, Media, Philadelphia, Pennsville, Honey Brook, Centreville, Norristown, Georgetown, Mount Holly, Ocean City, Cherry Hill, Moorestown, Pottstown, Hammonton, Cape May Court House, Oxford, Kennett Square, Easton, Chestertown, West Chester, Millville, Wilmington, Dover, Lansdale, Wharton State Forest, Atlantic City, Collegeville, Long Beach Island, Camden, and Rehoboth Beach 319 AM EDT Thu Oct 29 2020 ...FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... The Flood Watch continues for * Portions of Delaware...northeast Maryland...southern 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 southern New Jersey...Atlantic, Atlantic Coastal Cape May, Camden, Cape May, Coastal Atlantic, Coastal Ocean, Cumberland, Gloucester, Northwestern Burlington, Ocean, Salem, and Southeastern Burlington. In southeast Pennsylvania...Delaware, Eastern Chester, Eastern Montgomery, Philadelphia, Western Chester, and Western Montgomery. * Through this evening * The remnants of Zeta will move through the region today, bringing several waves of heavy rain from late this morning through this evening. Storm total rain of 2 to 4 inches is possible across the watch area. This could lead to overland and road flooding as well as small stream 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. && $$ MPS
156 WGUS61 KPHI 291840 FFAPHI Flood Watch National Weather Service Mount Holly NJ 240 PM EDT Thu Oct 29 2020 DEZ001>004-MDZ008-012-015-019-020-NJZ016>027-PAZ070-071-101>104- 300245- /O.CON.KPHI.FA.A.0003.000000T0000Z-201030T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD-Queen Annes-Talbot-Caroline-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- Including the cities of Glassboro, Denton, Elkton, Jackson, Media, Philadelphia, Pennsville, Honey Brook, Centreville, Norristown, Georgetown, Mount Holly, Ocean City, Cherry Hill, Moorestown, Pottstown, Hammonton, Cape May Court House, Oxford, Kennett Square, Easton, Chestertown, West Chester, Millville, Wilmington, Dover, Lansdale, Wharton State Forest, Atlantic City, Collegeville, Long Beach Island, Camden, and Rehoboth Beach 240 PM EDT Thu Oct 29 2020 ...FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... The Flood Watch continues for * Portions of Delaware...northeast Maryland...southern 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 southern New Jersey...Atlantic, Atlantic Coastal Cape May, Camden, Cape May, Coastal Atlantic, Coastal Ocean, Cumberland, Gloucester, Northwestern Burlington, Ocean, Salem, and Southeastern Burlington. In southeast Pennsylvania...Delaware, Eastern Chester, Eastern Montgomery, Philadelphia, Western Chester, and Western Montgomery. * Until Midnight EDT tonight * The remnants of Zeta will continue to move through the region this afternoon and into this evening. Additional rainfall amounts of 1 to 2 inches can be expected across portions of the watch area. When the rain comes to end, some locales could see up to 3 inches. Some isolated 4 inch amounts can't be ruled out. As a result, isolated low lying, poor drainage, or small stream flooding remains possible into this evening. 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
291 WGUS61 KPHI 292202 FFAPHI Flood Watch National Weather Service Mount Holly NJ 602 PM EDT Thu Oct 29 2020 DEZ001>004-MDZ008-012-015-019-020-NJZ016>027-PAZ070-071-101>104- 292315- /O.CAN.KPHI.FA.A.0003.000000T0000Z-201030T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD-Queen Annes-Talbot-Caroline-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- Including the cities of Glassboro, Denton, Elkton, Jackson, Media, Philadelphia, Pennsville, Honey Brook, Centreville, Norristown, Georgetown, Mount Holly, Ocean City, Cherry Hill, Moorestown, Pottstown, Hammonton, Cape May Court House, Oxford, Kennett Square, Easton, Chestertown, West Chester, Millville, Wilmington, Dover, Lansdale, Wharton State Forest, Atlantic City, Collegeville, Long Beach Island, Camden, and Rehoboth Beach 602 PM EDT Thu Oct 29 2020 ...FLOOD WATCH IS CANCELLED... The Flood Watch for Delaware, eastern Maryland, southeastern Pennsylvania, and southern and central New Jersey has been cancelled. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. $$ CMS
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 28, 5:16 AM EDT | Gale Watch | PHI | 10 hr | |
| Oct 28, 3:18 PM EDT | Gale Watch | PHI | 6 hr | |
| Oct 28, 3:18 PM EDT | Gale Warning | PHI | 47 hr | |
| Oct 28, 3:18 PM EDT | Small Craft Advisory | PHI | 3 days |
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.