Flash Flood Watch 10, NWS Philadelphia/Mount Holly

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, Sussex County, NJ, Warren County, NJ, Berks County, PA, Bucks County, PA, Carbon County, PA, Chester County, PA, Delaware County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia County, PA

421 
WGUS61 KPHI 211903
FFAPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Mount Holly NJ
303 PM EDT Sun Jul 21 2019



DEZ002>004-MDZ012-015-019-020-NJZ021>025-220800-
/O.EXB.KPHI.FF.A.0010.190722T1200Z-190723T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kent-Inland Sussex-Delaware Beaches-Kent MD-Queen Annes-Talbot-
Caroline-Cumberland-Atlantic-Cape May-Atlantic Coastal Cape May-
Coastal Atlantic-
Including the cities of Dover, Georgetown, Rehoboth Beach, 
Chestertown, Centreville, Easton, Denton, Millville, Hammonton, 
Cape May Court House, Ocean City, and Atlantic City
303 PM EDT Sun Jul 21 2019

...FLASH FLOOD WATCH IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY MORNING...

The National Weather Service in Mount Holly has expanded the

* Flash Flood Watch to include all of Delaware, northeast 
  Maryland, and southern New Jersey, including the following 
  areas, in Delaware, Delaware Beaches, Inland Sussex, and Kent. 
  In northeast Maryland, Caroline, Kent MD, Queen Annes, and 
  Talbot. In southern New Jersey, Atlantic, Atlantic Coastal Cape 
  May, Cape May, Coastal Atlantic, and Cumberland. 

* From Monday morning through Tuesday morning

* Showers and thunderstorms are forecast to bring periods of 
  heavy rain to our region from Monday into Monday night. 
  Rainfall totals of 1 to 2 inches are expected to be common, 
  with local amounts up to 3 to 4 inches possible. 

* There is the potential for flooding along small streams and 
  creeks, on roadways and in areas of poor drainage. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that there is the potential for flash
flooding which can be life-threatening. Heavy rain is expected to
occur over a relatively short period of time. Rapidly rising
flood waters may quickly inundate roadways and areas of poor
drainage. Streams and creeks could leave their banks, flooding
nearby properties.

Please monitor the forecast, especially if you live in a location
that is prone to flooding. Be prepared to take action if a flash
flood warning is issued for your area.

&&

$$

DEZ001-MDZ008-NJZ001-007>010-012>020-026-027-PAZ054-055-060>062-
070-071-101>106-220800-
/O.EXT.KPHI.FF.A.0010.190722T1200Z-190723T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle-Cecil-Sussex-Warren-Morris-Hunterdon-Somerset-
Middlesex-Western Monmouth-Eastern Monmouth-Mercer-Salem-
Gloucester-Camden-Northwestern Burlington-Ocean-Coastal Ocean-
Southeastern Burlington-Carbon-Monroe-Berks-Lehigh-Northampton-
Delaware-Philadelphia-Western Chester-Eastern Chester-
Western Montgomery-Eastern Montgomery-Upper Bucks-Lower Bucks-
Including the cities of Wilmington, Elkton, Newton, Washington, 
Morristown, Flemington, Somerville, New Brunswick, Freehold, 
Sandy Hook, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, 
Moorestown, Mount Holly, Jackson, Long Beach Island, 
Wharton State Forest, Jim Thorpe, Stroudsburg, 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 Sun Jul 21 2019

...FLASH FLOOD WATCH NOW IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY MORNING...

The Flash Flood Watch is now in effect for

* Southeastern Pennsylvania, much of New Jersey, all of Delaware,
  and Northeastern Maryland. 

* From Monday morning through Tuesday morning

* Showers and thunderstorms are forecast to bring periods of 
  heavy rain to our region from Monday into Monday night. 
  Rainfall totals of 1 to 2 inches are expected to be common, 
  with local amounts up to 3 to 4 inches possible. 

* There is the potential for flooding along small streams and 
  creeks, on roadways and in areas of poor drainage. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that there is the potential for flash
flooding which can be life-threatening. Heavy rain is expected to
occur over a relatively short period of time. Rapidly rising
flood waters may quickly inundate roadways and areas of poor
drainage. Streams and creeks could leave their banks, flooding
nearby properties.

Please monitor the forecast, especially if you live in a location
that is prone to flooding. Be prepared to take action if a flash
flood warning is issued for your area.

&&

$$

935 
WGUS61 KPHI 220126
FFAPHI

Flood Watch
National Weather Service Mount Holly NJ
926 PM EDT Sun Jul 21 2019

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-
055-060>062-070-071-101>106-221200-
/O.CON.KPHI.FF.A.0010.190722T1200Z-190723T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD-
Queen Annes-Talbot-Caroline-Sussex-Warren-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-Carbon-Monroe-Berks-Lehigh-
Northampton-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,
Newton, 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, Ocean City, 
Atlantic City, Long Beach Island, Wharton State Forest, 
Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Media, 
Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, 
Collegeville, Pottstown, Norristown, Lansdale, Chalfont, 
Perkasie, Morrisville, and Doylestown
926 PM EDT Sun Jul 21 2019

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 8 AM EDT MONDAY
THROUGH TUESDAY MORNING...

The Flash Flood Watch continues for

* Eastern and southeastern Pennsylvania, most of New Jersey,
  northeastern Maryland, and Delaware.

* From 8 AM EDT Monday through Tuesday morning

* Showers and thunderstorms are forecast to bring periods of heavy
  rain to our region from Monday into Monday night. Rainfall
  totals of 1 to 2 inches are expected to be common, with local
  amounts up to 3 to 4 inches possible. This could lead to flash
  flooding.

* The risk of flash flooding is highest in urbanized and low- 
  lying areas. Rapid rises on small creeks and streams are 
  possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that there is the potential for flash
flooding which can be life-threatening. Heavy rain is expected to
occur over a relatively short period of time. Rapidly rising
flood waters may quickly inundate roadways and areas of poor
drainage. Streams and creeks could leave their banks, flooding
nearby properties.

Please monitor the forecast, especially if you live in a location
that is prone to flooding. Be prepared to take action if a flash
flood warning is issued for your area.

&&

$$

CMS

871 
WGUS61 KPHI 220815
FFAPHI

Flood Watch
National Weather Service Mount Holly NJ
415 AM EDT Mon Jul 22 2019

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-
055-060>062-070-071-101>106-221615-
/O.CON.KPHI.FF.A.0010.190722T1200Z-190723T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD-
Queen Annes-Talbot-Caroline-Sussex-Warren-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-Carbon-Monroe-Berks-Lehigh-
Northampton-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,
Newton, 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, Ocean City, 
Atlantic City, Long Beach Island, Wharton State Forest, 
Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Media, 
Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, 
Collegeville, Pottstown, Norristown, Lansdale, Chalfont, 
Perkasie, Morrisville, and Doylestown
415 AM EDT Mon Jul 22 2019

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH TUESDAY MORNING...

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, Hunterdon, Mercer, Middlesex, 
  Morris, Northwestern Burlington, Ocean, Salem, Somerset, 
  Southeastern Burlington, Sussex, Warren, and Western Monmouth. 
  In Pennsylvania, Berks, Carbon, Delaware, Eastern Chester, 
  Eastern Montgomery, Lehigh, Lower Bucks, Monroe, Northampton, 
  Philadelphia, Upper Bucks, Western Chester, and Western 
  Montgomery. 

* From 8 AM EDT this morning through Tuesday morning

* Showers and thunderstorms are forecast to bring periods of heavy
  rain to our region from Monday afternoon into early Tuesday
  morning. Rainfall totals of 1 to 2 inches are expected to be 
  common, with local amounts up to 3 to 4 inches possible. This 
  could lead to flash flooding. 

* The risk of flash flooding is highest in urbanized and low- 
  lying areas. Rapid rises on small creeks and streams are 
  possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that there is the potential for flash
flooding which can be life-threatening. Heavy rain is expected to
occur over a relatively short period of time. Rapidly rising
flood waters may quickly inundate roadways and areas of poor
drainage. Streams and creeks could leave their banks, flooding
nearby properties.

Please monitor the forecast, especially if you live in a location
that is prone to flooding. Be prepared to take action if a flash
flood warning is issued for your area.

&&

$$

883 
WGUS61 KPHI 221702
FFAPHI

Flood Watch
National Weather Service Mount Holly NJ
102 PM EDT Mon Jul 22 2019

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-
055-060>062-070-071-101>106-230200-
/O.CON.KPHI.FF.A.0010.000000T0000Z-190723T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD-
Queen Annes-Talbot-Caroline-Sussex-Warren-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-Carbon-Monroe-Berks-Lehigh-
Northampton-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,
Newton, 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, Ocean City, 
Atlantic City, Long Beach Island, Wharton State Forest, 
Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Media, 
Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, 
Collegeville, Pottstown, Norristown, Lansdale, Chalfont, 
Perkasie, Morrisville, and Doylestown
102 PM EDT Mon Jul 22 2019

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH TUESDAY MORNING...

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, Hunterdon, Mercer, Middlesex, 
  Morris, Northwestern Burlington, Ocean, Salem, Somerset, 
  Southeastern Burlington, Sussex, Warren, and Western Monmouth. 
  In Pennsylvania, Berks, Carbon, Delaware, Eastern Chester, 
  Eastern Montgomery, Lehigh, Lower Bucks, Monroe, Northampton, 
  Philadelphia, Upper Bucks, Western Chester, and Western 
  Montgomery. 

* Through Tuesday morning

* Showers and thunderstorms are forecast to bring periods of heavy
  rain to our region this afternoon into early Tuesday morning. 
  Rainfall totals of 1 to 2 inches are expected to be common, with
  local amounts up to 3 to 4 inches possible. This could lead to 
  flash flooding. 

* The risk of flash flooding is highest in urbanized and low- 
  lying areas. Rapid rises on small creeks and streams are 
  possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that there is the potential for flash
flooding which can be life-threatening. Heavy rain is expected to
occur over a relatively short period of time. Rapidly rising
flood waters may quickly inundate roadways and areas of poor
drainage. Streams and creeks could leave their banks, flooding
nearby properties.

Please monitor the forecast, especially if you live in a location
that is prone to flooding. Be prepared to take action if a flash
flood warning is issued for your area.

&&

$$

055 
WGUS61 KPHI 230129
FFAPHI

Flood Watch
National Weather Service Mount Holly NJ
929 PM EDT Mon Jul 22 2019

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-
055-060>062-070-071-101>106-230930-
/O.CON.KPHI.FF.A.0010.000000T0000Z-190723T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD-
Queen Annes-Talbot-Caroline-Sussex-Warren-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-Carbon-Monroe-Berks-Lehigh-
Northampton-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,
Newton, 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, Ocean City, 
Atlantic City, Long Beach Island, Wharton State Forest, 
Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Media, 
Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, 
Collegeville, Pottstown, Norristown, Lansdale, Chalfont, 
Perkasie, Morrisville, and Doylestown
929 PM EDT Mon Jul 22 2019

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 8 AM EDT TUESDAY...

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, Hunterdon, Mercer, Middlesex, 
  Morris, Northwestern Burlington, Ocean, Salem, Somerset, 
  Southeastern Burlington, Sussex, Warren, and Western Monmouth. 
  In Pennsylvania, Berks, Carbon, Delaware, Eastern Chester, 
  Eastern Montgomery, Lehigh, Lower Bucks, Monroe, Northampton, 
  Philadelphia, Upper Bucks, Western Chester, and Western 
  Montgomery. 

* Until 8 AM EDT Tuesday

* Showers and thunderstorms are forecast to bring periods of 
  heavy rain to our region this afternoon into early Tuesday 
  morning. Rainfall totals of 1 to 2 inches are expected to be 
  common, with local amounts up to 3 to 4 inches possible. This 
  could lead to flash flooding. 

* The risk of flash flooding is highest in urbanized and low- 
  lying areas. Rapid rises on small creeks and streams are 
  possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that there is the potential for flash
flooding which can be life-threatening. Heavy rain is expected to
occur over a relatively short period of time. Rapidly rising
flood waters may quickly inundate roadways and areas of poor
drainage. Streams and creeks could leave their banks, flooding
nearby properties.

Please monitor the forecast, especially if you live in a location
that is prone to flooding. Be prepared to take action if a flash
flood warning is issued for your area.

&&

$$

Staarmann

370 
WGUS61 KPHI 230746
FFAPHI

Flood Watch
National Weather Service Mount Holly NJ
346 AM EDT Tue Jul 23 2019



DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-
055-060>062-070-071-101>106-231200-
/O.CON.KPHI.FF.A.0010.000000T0000Z-190723T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD-
Queen Annes-Talbot-Caroline-Sussex-Warren-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-Carbon-Monroe-Berks-Lehigh-
Northampton-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,
Newton, 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, Ocean City, 
Atlantic City, Long Beach Island, Wharton State Forest, 
Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Media, 
Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, 
Collegeville, Pottstown, Norristown, Lansdale, Chalfont, 
Perkasie, Morrisville, and Doylestown
346 AM EDT Tue Jul 23 2019

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 8 AM EDT THIS
MORNING...

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, Hunterdon, Mercer, Middlesex, 
  Morris, Northwestern Burlington, Ocean, Salem, Somerset, 
  Southeastern Burlington, Sussex, Warren, and Western Monmouth. 
  In Pennsylvania, Berks, Carbon, Delaware, Eastern Chester, 
  Eastern Montgomery, Lehigh, Lower Bucks, Monroe, Northampton, 
  Philadelphia, Upper Bucks, Western Chester, and Western 
  Montgomery. 

* Until 8 AM EDT this morning

* Another round of showers is possible through early this morning.
  This could lead to flash flooding, especially in areas that had
  flooding last evening where the ground is already saturated. In
  these areas, any additional rainfall will quickly become runoff
  and exacerbate flooding concerns. 

* The risk of flash flooding is highest in urbanized and low- 
  lying areas. Rapid rises on small creeks and streams are 
  possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that there is the potential for flash
flooding which can be life-threatening. Heavy rain is expected to
occur over a relatively short period of time. Rapidly rising
flood waters may quickly inundate roadways and areas of poor
drainage. Streams and creeks could leave their banks, flooding
nearby properties.

Please monitor the forecast, especially if you live in a location
that is prone to flooding. Be prepared to take action if a flash
flood warning is issued for your area.

&&

$$

SFJ

300 
WGUS61 KPHI 231019
FFAPHI

Flood Watch
National Weather Service Mount Holly NJ
619 AM EDT Tue Jul 23 2019



DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-
055-060>062-070-071-101>106-231130-
/O.CAN.KPHI.FF.A.0010.000000T0000Z-190723T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD-
Queen Annes-Talbot-Caroline-Sussex-Warren-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-Carbon-Monroe-Berks-Lehigh-
Northampton-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,
Newton, 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, Ocean City, 
Atlantic City, Long Beach Island, Wharton State Forest, 
Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Media, 
Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, 
Collegeville, Pottstown, Norristown, Lansdale, Chalfont, 
Perkasie, Morrisville, and Doylestown
619 AM EDT Tue Jul 23 2019

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of Delaware, northeast
Maryland, New Jersey, and Pennsylvania has been cancelled. The
heaviest rain has ended, as has the threat for widespread
flooding. Additional rain is possible today, however, rain rates
are expected to be low enough to preclude much of a flash flood
threat.

$$

Area Forecast Discussion
National Weather Service Mount Holly NJ
1229 AM EDT Sun Jul 21 2019

.SYNOPSIS...
A ridge of high pressure will remain entrenched off the coast of the
southeastern U.S. through Sunday. A cold front will approach and
progress through the region Monday into Tuesday. A cooler and drier
air mass will advect in for the remainder of the week.

&&

.NEAR TERM /UNTIL 6 AM THIS MORNING/...
1230am Update: No significant changes made to the forecast. The
urban corridor is holding a bit warmer than the hourly temp and
dewpoint forecast portrayed, so adjusted that accordingly. Also
dropped winds down a bit as the forecast was over-performing vs
observations. All convection has ended across the region and the
forcing that lead to the storms earlier in the evening is moving
out of the region.

Previous discussion...
After a hot and humid day, a warm and muggy night is in store
across the area. Everyone is expected to drop only into the mid
to upper 70s tonight, with some areas not dropping out of the
80s.

A few isolated showers and thunderstorms have developed across
the area through this evening so far, and more have developed to
our west as well. These are due to an approaching short
wave/vorticity impulse aloft, interacting with the instability
from the heat and humidity. There will remain a chance for a few
isolated showers/thunderstorms into the first half of the night,
then as the short wave passes east, this activity will end. Any
thunderstorms will be capable of producing gusty winds, heavy
rainfall, and lightning.

&&

.SHORT TERM /6 AM THIS MORNING THROUGH 6 PM MONDAY/...
The ongoing heat wave will continue into Sunday with rather extreme
heat indicies continuing area wide. Air temperatures are forecast to
be well into the mid to upper 90s outside of the highest terrain and
away from the immediate coast with dewpoints in the mid to upper
70s. Resulting heat index values are forecast to range from around
110-115 across most of central and southern NJ, SE PA, and Delmarva
away from the immediate coast. Across the Lehigh Valley, NW NJ, and
immediate coastal areas, widespread values of 105-110 can be
expected. Values from 95-100 are expected across the southern
Poconos. Otherwise, it should be a partly to mostly sunny but hazy
day. There will be a slow moving frontal boundary approaching from
the N/NW by the mid to late afternoon and this could result in some
showers and storms affecting areas mainly north of Philly through
the Lehigh Valley, the southern Poconos and NW NJ by late day.
Limiting factor will be capping and relatively dry layer just above
the cap which will tend to limit storm formation over eastern PA but
if any storms do develop they could become severe as ML CAPEs will
be 2500-3500+ j/kg with relatively steep mid level lapse rates as
well due to elevated mixed layer. Damaging winds would be the main
threat.

&&

.LONG TERM /MONDAY NIGHT THROUGH SATURDAY/...
Summary: The main story in this period is the cold front
approaching and sliding through the region Monday into Tuesday,
which will bring potentially strong storms and heavy rain as
well as finally an end to the excessive heat.

Details:
Sunday night through Tuesday: cold front approaches the region,
especially starting on Monday. It still looks like it will take
some time for the front to move off shore as it may slow or even
stall over our region. Consequently, we could have multiple
rounds of thunderstorms, centered along the cold front. Ahead of
the front, the tropical maritime air mass will still be in
place, so heavy rain leading to flooding will remain a concern.
Also, lapse rates could be rather steep, increasing the threat
for strong, and possibly severe storms. An elevated mixed layer
could somewhat limit this threat, but will continue with the
mention of gusty winds for now. Though the tropical air mass
will still be in place for much of the region through peak
heating on Monday, persistent clouds should help to keep heat
index values below heat advisory/warning criteria for most
locations. The one possible exception is southern DE and
adjacent locations in MD, which currently has forecasted maximum
heat index values of 100 - 105 F. Not enough confidence at this
point to extend the excessive heat warning into Monday. By
Tuesday, our region should really start to see some relief
behind the cold front, with highs likely to be in the 70s and
lower 80s across the region, and dew points dropping into the
60s.

Wednesday through Saturday: In the wake of the cold front,
expect temperatures slightly below normal Wednesday and
Thursday, with highs from the mid 70s to mid 80s, and lows in
the 50s and 60s. By the time we get to Friday, southerly return
flow could develop, bringing our temperatures to near or even
slightly above normal. None the less, it still looks like it
will be quite a bit more comfortable next weekend as compared to
this weekend. As far as precipitation, the mid and upper level
flow becomes much weaker by mid week. Consequently, there
doesn't appear to be a significant chance for widespread
precipitation after Tuesday.

&&

.AVIATION /06Z SUNDAY THROUGH THURSDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.

Tonight...Mainly VFR. Winds generally southwest wind 5-10 knots
or less. Some terminals may drop to light and variable winds at
times.

Sunday...VFR expected. Isolated thunderstorms possible during
the late afternoon and early evening, especially from around
PHL/PNE northward. West winds around 5-10 knots, with occasional
gusty of 15-20 knots during the afternoon.

Outlook...

Sunday night through Tuesday night...Periods of heavy showers
and thunderstorms expected. Several periods of MVFR likely with
IFR possible. West to southwest winds around 5 kts, becoming
northwest on Tuesday at 5 to 10 kt.

Tuesday night through Thursday...VFR conditions are expected.
Northwest at 5 to 10 kt becoming light and variable.

&&

.MARINE...
Through Sunday, winds should generally remain out of the south and
southwest around 10 to 15 knots, with occasional gusts around
20 knots at times. During this time wave heights on our ocean
waters are expected to be 2 to 3 feet. Waves on Delaware Bay
will likely be 2 feet or less.

Outlook...

Sunday night through Tuesday...A brief period of northwesterly
wind gusts up to 25 kt is possible behind a cold front which
will bring an abrupt shift from southwesterly to northwesterly
winds. In addition, stronger winds and locally higher waves are
possible in the vicinity of any thunderstorms through this
period.

Wednesday and Thursday...Winds and seas are likely to remain
below SCA criteria.

Rip Currents...

Wind will be out of the southwest 10-15 knots on Sunday, while
seas will remain 2-3 feet with a swell period of around 6
seconds. This will keep a low risk of rip currents on Sunday.

&&

.CLIMATE...
The only site to break their record maximum today was Atlantic
City. It set a record maximum of 99 degrees, breaking the old
record of 97 set in 1991. Below are the records for Sunday.

Record Maximum Temperatures for:

7/21
Site     Max/Year          High Min/Year
ABE      101/1980             75/1980
ACY       99/1981             77/1991
PHL      103/1930             79/2017
ILG      102/1957             77/1972
RDG      102/2011             77/2011
TTN      101/1930             78/1980
MPO       94/2011             72/2011
GED      101/1957             79/2017

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Excessive Heat Warning until 10 PM EDT this evening for PAZ054-
     055-060>062-070-071-101>106.
NJ...Excessive Heat Warning until 10 PM EDT this evening for NJZ001-
     007>010-012>027.
DE...Excessive Heat Warning until 10 PM EDT this evening for
     DEZ001>004.
MD...Excessive Heat Warning until 10 PM EDT this evening for MDZ008-
     012-015-019-020.
MARINE...None.

&&

Synopsis...Johnson
Near Term...Fitzsimmons/Robertson/Staarmann
Short Term...Fitzsimmons
Long Term...Johnson
Aviation...Fitzsimmons/Johnson/Robertson/Staarmann
Marine...Fitzsimmons/Johnson
Climate...Staarmann

Hazardous Weather Outlook
National Weather Service Mount Holly NJ
333 PM EDT Sat Jul 20 2019

DEZ001>003-MDZ008-012-015-019-020-NJZ001-007>010-012-013-015>023-027-
PAZ054-055-060>062-070-071-101>106-211945-
New Castle-Kent-Inland Sussex-Cecil-Kent MD-Queen Annes-Talbot-
Caroline-Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-
Western Monmouth-Mercer-Salem-Gloucester-Camden-
Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May-
Southeastern Burlington-Carbon-Monroe-Berks-Lehigh-Northampton-
Delaware-Philadelphia-Western Chester-Eastern Chester-
Western Montgomery-Eastern Montgomery-Upper Bucks-Lower Bucks-
333 PM EDT Sat Jul 20 2019

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 10 PM EDT SUNDAY...

This Hazardous Weather Outlook is for central Delaware, northern
Delaware, southern Delaware, northeast Maryland, central New
Jersey, northern New Jersey, northwest New Jersey, southern New
Jersey, east central Pennsylvania, northeast Pennsylvania and
southeast Pennsylvania.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Excessive Heat Warning.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Excessive Heat Warning.

Heavy rain, leading to flooding, is possible with storms Monday into
Tuesday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

DEZ004-NJZ014-024>026-211945-
Delaware Beaches-Eastern Monmouth-Atlantic Coastal Cape May-
Coastal Atlantic-Coastal Ocean-
333 PM EDT Sat Jul 20 2019

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 10 PM EDT SUNDAY...

This Hazardous Weather Outlook is for southern Delaware, central
New Jersey and southern New Jersey.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Excessive Heat Warning.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Excessive Heat Warning.

Heavy rain, leading to flooding, is possible with storms Monday into
Tuesday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

ANZ430-431-450>455-211945-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
333 PM EDT Sat Jul 20 2019

This Hazardous Weather Outlook is for Atlantic coastal waters and
Delaware Bay Waters.

.DAY ONE...This afternoon and tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Storms Monday into Tuesday may be capable of producing wind gusts
above 34 kt.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.