Alert archive / New Jersey / Flash Flood Watches in 2017
Flash Flood Watch 5, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood watch at Jul 27, 2017, 3:08 PM EDT for 4 states. It took effect at Jul 28, 2017, 2:00 PM EDT. It was in force for 19 hr.
The area
The counties it named.
The facts
- Issued
- Jul 27, 2017, 3:08 PM EDT (19:08 UTC)
- In effect from
- Jul 28, 2017, 2:00 PM EDT
- Expired
- Jul 29, 2017, 9:12 AM EDT
- In force
- 19 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Flood severity
- None
All 25 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, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ, Salem County, NJ, Berks County, PA, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 80 km from the middle of the area, began a volume at 19:08 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, 7.1 hours before the alert went out and 192 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
- 5 J/kg
- Mixed-layer CIN
- -73 J/kg
- Mixed-layer LCL
- 874 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 89 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
975 WGUS61 KPHI 271908 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Mount Holly NJ 308 PM EDT Thu Jul 27 2017 DEZ001>004-MDZ008-012-015-019-020-NJZ012>027-PAZ060-070-071- 101>106-280400- /O.NEW.KPHI.FF.A.0005.170728T1800Z-170729T1800Z/ /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-Berks-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, 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, Reading, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 308 PM EDT Thu Jul 27 2017 ...FLASH FLOOD WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY AFTERNOON... The National Weather Service in Mount Holly has issued a * Flash Flood Watch for portions of Delaware, northeast Maryland, New Jersey, and 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 Pennsylvania, Berks, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Philadelphia, Upper Bucks, Western Chester, and Western Montgomery. * From Friday afternoon through Saturday afternoon * Showers and thunderstorms with heavy rain will develop starting Friday afternoon and will first move into northeast Maryland, Delaware, southeast Pennsylvania, and southern New Jersey, before lifting north towards central New Jersey. Additional waves of showers and thunderstorms with heavy rain will then continue to impact these same areas Friday night through Saturday afternoon. Rainfall amounts during this time will generally range from 2 to 4 inches, but training of thunderstorms may result in significantly higher amounts. * Heavy rain falling in a short period of time will result in rapidly rising water levels along streams and creeks and in areas of poor drainage. Significant roadway flooding may occur. It is also important to note that heavy rain will fall over areas that already received several inches of rain early this week, so it will not take much for flooding to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ MPS
8 follow-up statements
985 WGUS61 KPHI 280129 FFAPHI Flood Watch National Weather Service Mount Holly NJ 929 PM EDT Thu Jul 27 2017 DEZ001>004-MDZ008-012-015-019-020-NJZ012>027-PAZ060-070-071- 101>106-281100- /O.CON.KPHI.FF.A.0005.170728T1800Z-170729T1800Z/ /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-Berks-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, 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, Reading, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 929 PM EDT Thu Jul 27 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY AFTERNOON... The Flash Flood Watch continues for * Portions of Delaware, northeast Maryland, New Jersey, and 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 Pennsylvania, Berks, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Philadelphia, Upper Bucks, Western Chester, and Western Montgomery. * From Friday afternoon through Saturday afternoon * Showers and thunderstorms with heavy rain will develop starting Friday afternoon and will first move into northeast Maryland, Delaware, southeast Pennsylvania, and southern New Jersey, before lifting north towards central New Jersey. Additional waves of showers and thunderstorms with heavy rain will then continue to impact these same areas Friday night through Saturday afternoon. Rainfall amounts during this time will generally range from 2 to 4 inches, but training of thunderstorms may result in significantly higher amounts. * Heavy rain falling in a short period of time will result in rapidly rising water levels along streams and creeks and in areas of poor drainage. Significant roadway flooding may occur. It is also important to note that heavy rain will fall over areas that already received several inches of rain early this week, so it will not take much for flooding to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
882 WGUS61 KPHI 280736 FFAPHI Flood Watch National Weather Service Mount Holly NJ 336 AM EDT Fri Jul 28 2017 NJZ012>015-PAZ060-103-105-106-280845- /O.CAN.KPHI.FF.A.0005.170728T1800Z-170729T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Middlesex-Western Monmouth-Eastern Monmouth-Mercer-Berks- Western Montgomery-Upper Bucks-Lower Bucks- Including the cities of New Brunswick, Freehold, Sandy Hook, Trenton, Reading, Collegeville, Pottstown, Chalfont, Perkasie, Morrisville, and Doylestown 336 AM EDT Fri Jul 28 2017 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of New Jersey and Pennsylvania has been cancelled. The axis of heavy rainfall is now expected to remain south of Interstate-195 in central New Jersey and the Pennsylvania Turnpike in eastern Pennsylvania. The threat of flash flooding has diminished accordingly. However, moderate rainfall could lead to poor drainage flooding tonight into Saturday morning. $$ DEZ001>004-MDZ008-012-015-019-020-NJZ016>027-PAZ070-071-101-102- 104-281545- /O.CON.KPHI.FF.A.0005.170728T1800Z-170729T1800Z/ /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-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, Norristown, and Lansdale 336 AM EDT Fri Jul 28 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH SATURDAY AFTERNOON... The Flash Flood Watch continues for * Portions of southeastern Pennsylvania, southern New Jersey, eastern Maryland and Delaware. * From 2 PM EDT this afternoon through Saturday afternoon. * Showers and thunderstorms with heavy rain is expected to develop across Delmarva this afternoon before expanding northeastward into southeastern Pennsylvania and southern New Jersey this evening. Additional waves of showers and thunderstorms with heavy rain will then continue to impact the area tonight through Saturday morning. Rainfall amounts during this time will generally range from 2 to 4 inches. However, training of thunderstorms may lead to isolated higher amounts in excess of 6 inches, especially south of the Mason-Dixon line. * Torrential rain falling in a short period of time will result in rapidly rising water levels along streams and creeks and in areas of poor drainage. Significant roadway flooding may occur. Locations in far southeastern Pennsylvania, southern New Jersey, northeastern Maryland and Delaware that were just affected by heavy rain since last weekend will be particularly vulnerable to flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ Klein
469 WGUS61 KPHI 281320 FFAPHI Flood Watch National Weather Service Mount Holly NJ 920 AM EDT Fri Jul 28 2017 DEZ001>004-MDZ008-012-015-019-020-NJZ016>027-PAZ070-071-101-102- 104-282200- /O.CON.KPHI.FF.A.0005.170728T1800Z-170729T1800Z/ /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-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, Norristown, and Lansdale 920 AM EDT Fri Jul 28 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH SATURDAY AFTERNOON... The Flash 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, and Western Chester. * From 2 PM EDT this afternoon through Saturday afternoon * Showers and thunderstorms with heavy rain are expected to develop across Delmarva this afternoon before expanding northeastward into southeastern Pennsylvania and southern New Jersey this evening. Additional waves of showers and thunderstorms with heavy rain will then continue to impact the area tonight through Saturday morning. Rainfall amounts during this time will generally range from 2 to 4 inches. However, training of thunderstorms may lead to isolated higher amounts in excess of 6 inches, especially south of the Mason-Dixon line. * Torrential rain falling in a short period of time will result in rapidly rising water levels along streams and creeks and in areas of poor drainage. Significant roadway flooding may occur. Locations in far southeastern Pennsylvania, southern New Jersey, northeastern Maryland and Delaware that were just affected by heavy rain since last weekend will be particularly vulnerable to flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ MPS
210 WGUS61 KPHI 281908 FFAPHI Flood Watch National Weather Service Mount Holly NJ 308 PM EDT Fri Jul 28 2017 DEZ001>004-MDZ008-012-015-019-020-NJZ016>027-PAZ070-071-101-102- 104-290400- /O.CON.KPHI.FF.A.0005.000000T0000Z-170729T1800Z/ /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-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, Norristown, and Lansdale 308 PM EDT Fri Jul 28 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY AFTERNOON... The Flash 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, and Western Chester. * Through Saturday afternoon * Showers and thunderstorms with heavy rain over the Delmarva and southeast Pennsylvania will continue to lift to the north and east this evening, and will expanding into southern New Jersey. Additional waves of showers and thunderstorms with heavy rain will then continue to impact the area tonight through Saturday morning. Rainfall amounts during this time will generally range from 2 to 4 inches. However, training of thunderstorms may lead to isolated higher amounts in excess of 6 inches, especially south of the Mason-Dixon line. * Torrential rain falling in a short period of time will result in rapidly rising water levels along streams and creeks and in areas of poor drainage. Significant roadway flooding may occur. Locations in far southeastern Pennsylvania, southern New Jersey, northeastern Maryland and Delaware that were just affected by heavy rain since last weekend will be particularly vulnerable to flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ MPS
254 WGUS61 KPHI 290144 FFAPHI Flood Watch National Weather Service Mount Holly NJ 944 PM EDT Fri Jul 28 2017 DEZ001>004-MDZ008-012-015-019-020-NJZ016>027-PAZ070-071-101-102- 104-291200- /O.CON.KPHI.FF.A.0005.000000T0000Z-170729T1800Z/ /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-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, Norristown, and Lansdale 944 PM EDT Fri Jul 28 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY AFTERNOON... The Flash 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, and Western Chester. * Through Saturday afternoon * Showers and thunderstorms with heavy rain over the Delmarva and southeast Pennsylvania will continue to lift to the north and east overnight, and will expand into southern New Jersey. Additional waves of showers and thunderstorms with heavy rain will then continue to impact the area through Saturday morning. Rainfall amounts during this time will generally range from 2 to 4 inches. However, training of thunderstorms may lead to isolated higher amounts in excess of 6 inches, especially south of the Mason-Dixon line. * Torrential rain falling in a short period of time will result in rapidly rising water levels along streams and creeks and in areas of poor drainage. Significant roadway flooding may occur. Locations in far southeastern Pennsylvania, southern New Jersey, northeastern Maryland and Delaware that were just affected by heavy rain since last weekend will be particularly vulnerable to flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
840 WGUS61 KPHI 290826 FFAPHI Flood Watch National Weather Service Mount Holly NJ 426 AM EDT Sat Jul 29 2017 DEZ001>004-MDZ008-012-015-019-020-NJZ016>027-PAZ070-071-101-102- 104-291800- /O.CON.KPHI.FF.A.0005.000000T0000Z-170729T1800Z/ /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-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, Norristown, and Lansdale 426 AM EDT Sat Jul 29 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... The Flash 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, and Western Chester. * Until 2 PM EDT this afternoon * Showers and thunderstorms with heavy rain over Delmarva and southern New Jersey will continue to lift to the north and east early this morning. Additional waves of showers and thunderstorms with heavy rain will then continue to impact the area through this morning. Rainfall amounts during this time will generally range from 2 to 4 inches. However, training of thunderstorms may lead to isolated higher amounts in excess of 6 inches, especially across portions of Delmarva. * Torrential rain falling in a short period of time will result in rapidly rising water levels along streams and creeks and in areas of poor drainage. Significant roadway flooding may occur. Locations in far southeastern Pennsylvania, southern New Jersey, northeastern Maryland and Delaware that were just affected by heavy rain since last weekend will be particularly vulnerable to flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
329 WGUS61 KPHI 291037 FFAPHI Flood Watch National Weather Service Mount Holly NJ 637 AM EDT Sat Jul 29 2017 PAZ070-071-101-102-104-291145- /O.CAN.KPHI.FF.A.0005.000000T0000Z-170729T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Delaware-Philadelphia-Western Chester-Eastern Chester- Eastern Montgomery- Including the cities of Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Norristown, and Lansdale 637 AM EDT Sat Jul 29 2017 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for a portion of southeast Pennsylvania has been cancelled. The heavy rainfall is now expected to remain south and east of the Interstate-95 corridor. $$ DEZ001>004-MDZ008-012-015-019-020-NJZ016>027-291800- /O.CON.KPHI.FF.A.0005.000000T0000Z-170729T1800Z/ /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- 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, and Wharton State Forest 637 AM EDT Sat Jul 29 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... The Flash Flood Watch continues for * Portions of Delaware, northeast Maryland, and southern New Jersey, 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. * Until 2 PM EDT this afternoon * Showers and thunderstorms with heavy rain over Delmarva and southern New Jersey are lifting to the north and east early this morning. Additional waves of showers and thunderstorms with heavy rain are expected to move into the area later this morning. Rainfall amounts during this time will generally range from 2 to 4 inches. However, training of thunderstorms may lead to isolated higher amounts in excess of 6 inches, especially across portions of Delmarva. * Torrential rain falling in a short period of time will result in rapidly rising water levels along streams and creeks and in areas of poor drainage. Significant roadway flooding may occur. Locations in far southeastern Pennsylvania, southern New Jersey, northeastern Maryland and Delaware that were just affected by heavy rain since last weekend will be particularly vulnerable to flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
369 WGUS61 KPHI 291312 FFAPHI Flood Watch National Weather Service Mount Holly NJ 912 AM EDT Sat Jul 29 2017 DEZ001>004-MDZ008-012-015-019-020-NJZ016>027-291415- /O.CAN.KPHI.FF.A.0005.000000T0000Z-170729T1800Z/ /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- 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, and Wharton State Forest 912 AM EDT Sat Jul 29 2017 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of Delaware, northeast Maryland, and southern New Jersey has been cancelled. While additional showers are expected today, the threat for widespread heavy rain and flooding has ended. $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 3:49 PM EDT | Gale Watch | PHI | 23 hr |
Nearby
Flash Flood Watches in New Jersey, 2017Flash Flood Watches in Pennsylvania, 2017Flash Flood Watches in Maryland, 2017Every flash 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.