Alert archive / New Jersey / Excessive Heat Watches in 2019

Excessive Heat Watch 2, NWS Philadelphia/Mount Holly

July 17, 20194 states

NWS Philadelphia/Mount Holly issued this excessive heat watch at Jul 17, 2019, 3:14 PM EDT for 4 states. It took effect at Jul 19, 2019, 12:00 PM EDT. It was in force for .

The area

The counties it named.

The facts

Issued
Jul 17, 2019, 3:14 PM EDT (19:14 UTC)
In effect from
Jul 19, 2019, 12:00 PM EDT
Expired
Jul 18, 2019, 3:41 PM EDT
In force
Issued by
NWS Philadelphia/Mount Holly
All 28 counties

Kent 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, Cape May County, NJ, Cumberland County, NJ, Hunterdon 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, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 69 km from the middle of the area, began a volume at 19:17 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.2 hours before the alert went out and 219 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.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2019-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 237 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2019-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
237 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
1666 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
69 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

478 
WWUS71 KPHI 171914
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
314 PM EDT Wed Jul 17 2019

...Prolonged Period of Excessive Heat through the Weekend...

.The combination of heat and high humidity will lead to
dangerously hot conditions through the weekend across much of the
region.

DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-180715-
/O.CON.KPHI.EH.W.0002.000000T0000Z-190722T0200Z/
New Castle-Mercer-Gloucester-Camden-Northwestern Burlington-
Delaware-Philadelphia-Eastern Chester-Eastern Montgomery-
Lower Bucks-
Including the cities of Wilmington, Trenton, Glassboro, Camden, 
Cherry Hill, Moorestown, Mount Holly, Media, Philadelphia, 
West Chester, Kennett Square, Norristown, Lansdale, Morrisville, 
and Doylestown
314 PM EDT Wed Jul 17 2019

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

* HEAT INDEX VALUES...100 to 105 today, then up to 110 to 115 
  Friday through Sunday due to temperatures in the mid to upper 
  90s, and dewpoints in the mid 70s. Some areas may reach 100 
  degrees for daytime temperatures on Saturday.

* TIMING...The highest Heat Index values will occur during the 
  daytime, especially on Saturday. However, given how hot and 
  oppressive this airmass will be, there will not be much relief 
  at night.

* IMPACTS...The excessive heat may quickly cause heat stress or 
  heat stroke.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take extra precautions, if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by
heat should be moved to a cool and shaded location. Heat stroke
is an emergency, call 9 1 1.

An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures will occur. The combination of hot
temperatures and high humidity will combine to create a DANGEROUS
SITUATION in which heat illnesses are likely. Drink plenty of
fluids, stay in an air-conditioned room, stay out of the sun, and
check up on relatives and neighbors.

Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

DEZ002-003-MDZ008-012-015-019-020-NJZ007>010-012-013-016-020>023-
027-PAZ060>062-101-103-105-180715-
/O.NEW.KPHI.EH.A.0002.190719T1600Z-190722T0200Z/
/O.CON.KPHI.HT.Y.0002.000000T0000Z-190718T0000Z/
Kent-Inland Sussex-Cecil-Kent MD-Queen Annes-Talbot-Caroline-
Warren-Morris-Hunterdon-Somerset-Middlesex-Western Monmouth-Salem-
Ocean-Cumberland-Atlantic-Cape May-Southeastern Burlington-Berks-
Lehigh-Northampton-Western Chester-Western Montgomery-Upper Bucks-
Including the cities of Dover, Georgetown, Elkton, Chestertown, 
Centreville, Easton, Denton, Washington, Morristown, Flemington, 
Somerville, New Brunswick, Freehold, Pennsville, Jackson, 
Millville, Hammonton, Cape May Court House, Wharton State Forest,
Reading, Allentown, Bethlehem, Honey Brook, Oxford, Collegeville,
Pottstown, Chalfont, and Perkasie
314 PM EDT Wed Jul 17 2019

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SUNDAY EVENING...

The National Weather Service in Mount Holly has issued an
Excessive Heat Watch, which is in effect from Friday afternoon
through Sunday evening.

* HEAT INDEX VALUES...100 to 110 today, then 110 to 115 Friday 
  through Sunday due to temperatures in the mid to upper 90s, and 
  dewpoints in the mid 70s. Some areas may reach 100 degrees for 
  daytime temperatures on Saturday.

* TIMING...The highest heat index values will occur around mid 
  day. Additional advisories or warnings are expected during 
  subsequent days.

* IMPACTS...The excessive heat may quickly cause heat stress or 
  heat stroke.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids, stay in an air-conditioned
room, stay out of the sun, and check up on relatives and
neighbors.

   Take extra precautions, if you work or spend time outside.
When possible, reschedule strenuous activities to early morning
or evening. Know the signs and symptoms of heat exhaustion and
heat stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

   To reduce risk during outdoor work, the Occupational Safety
and Health Administration recommends scheduling frequent rest
breaks in shaded or air conditioned environments. Anyone overcome
by heat should be moved to a cool and shaded location.   Heat
stroke is an emergency, call 9 1 1.

An Excessive Heat Watch means that a prolonged period of hot
temperatures is expected. The combination of hot temperatures and
high humidity will combine to create a DANGEROUS SITUATION in
which heat illnesses are possible. Drink plenty of fluids, stay
in an air-conditioned room, stay out of the sun, and check up on
relatives and neighbors.

&&

$$

DEZ004-NJZ001-014-024>026-PAZ054-055-180715-
/O.NEW.KPHI.EH.A.0002.190719T1600Z-190722T0200Z/
Delaware Beaches-Sussex-Eastern Monmouth-
Atlantic Coastal Cape May-Coastal Atlantic-Coastal Ocean-Carbon-
Monroe-
Including the cities of Rehoboth Beach, Newton, Sandy Hook, 
Ocean City, Atlantic City, Long Beach Island, Jim Thorpe, 
and Stroudsburg
314 PM EDT Wed Jul 17 2019

...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SUNDAY EVENING...

The National Weather Service in Mount Holly has issued an
Excessive Heat Watch, which is in effect from Friday afternoon
through Sunday evening.

* HEAT INDEX VALUES...105 to 110 Friday through Sunday due to 
  temperatures in the mid to upper 90s, and dewpoints in the mid 
  70s. Some areas may reach 100 degrees for daytime temperatures 
  on Saturday.

* TIMING...

* IMPACTS...The heat and humidity may cause heat stress during 
  outdoor exertion or extended exposure.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Excessive Heat Watch means that a prolonged period of hot
temperatures is expected. The combination of hot temperatures and
high humidity will combine to create a DANGEROUS SITUATION in
which heat illnesses are possible. Drink plenty of fluids, stay
in an air-conditioned room, stay out of the sun, and check up on
relatives and neighbors.

&&

$$
3 follow-up statements
529 
WWUS71 KPHI 172347
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
747 PM EDT Wed Jul 17 2019

...Prolonged Period of Excessive Heat through the Weekend...

.The combination of heat and high humidity will lead to
dangerously hot conditions through the weekend across much of the
region.

DEZ002-003-MDZ008-012-015-019-020-NJZ007>010-012-013-016-020>023-
027-PAZ060>062-101-103-105-181200-
/O.EXP.KPHI.HT.Y.0002.000000T0000Z-190718T0000Z/
/O.CON.KPHI.EH.A.0002.190719T1600Z-190722T0200Z/
Kent-Inland Sussex-Cecil-Kent MD-Queen Annes-Talbot-Caroline-
Warren-Morris-Hunterdon-Somerset-Middlesex-Western Monmouth-Salem-
Ocean-Cumberland-Atlantic-Cape May-Southeastern Burlington-Berks-
Lehigh-Northampton-Western Chester-Western Montgomery-Upper Bucks-
Including the cities of Dover, Georgetown, Elkton, Chestertown, 
Centreville, Easton, Denton, Washington, Morristown, Flemington, 
Somerville, New Brunswick, Freehold, Pennsville, Jackson, 
Millville, Hammonton, Cape May Court House, Wharton State Forest,
Reading, Allentown, Bethlehem, Honey Brook, Oxford, Collegeville,
Pottstown, Chalfont, and Perkasie
747 PM EDT Wed Jul 17 2019

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON
THROUGH SUNDAY EVENING...
...HEAT ADVISORY WILL EXPIRE AT 8 PM EDT THIS EVENING...

* HEAT INDEX VALUES...Up to 113 due to temperatures in the upper 
  90s, and dewpoints in the mid 70s.

* TIMING...The highest heat index values will occur around mid day
  each day. However, given how hot and oppressive this airmass 
  will be, there will not be much relief at night.

* IMPACTS...The excessive heat may quickly cause heat stress or 
  heat stroke.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Excessive Heat Watch means that a prolonged period of hot
temperatures is expected. The combination of hot temperatures and
high humidity will combine to create a DANGEROUS SITUATION in
which heat illnesses are possible. Drink plenty of fluids, stay
in an air-conditioned room, stay out of the sun, and check up on
relatives and neighbors.

&&

$$

DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-181200-
/O.CON.KPHI.EH.W.0002.000000T0000Z-190722T0200Z/
New Castle-Mercer-Gloucester-Camden-Northwestern Burlington-
Delaware-Philadelphia-Eastern Chester-Eastern Montgomery-
Lower Bucks-
Including the cities of Wilmington, Trenton, Glassboro, Camden, 
Cherry Hill, Moorestown, Mount Holly, Media, Philadelphia, 
West Chester, Kennett Square, Norristown, Lansdale, Morrisville, 
and Doylestown
747 PM EDT Wed Jul 17 2019

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

* HEAT INDEX VALUES...Up to 114 due to temperatures in the upper 
  90s, and dewpoints in the lower 70s.

* TIMING...The highest Heat Index values will occur during the 
  daytime, especially on Saturday. However, given how hot and 
  oppressive this airmass will be, there will not be much relief 
  at night.

* IMPACTS...The excessive heat may quickly cause heat stress or 
  heat stroke.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take extra precautions, if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by
heat should be moved to a cool and shaded location. Heat stroke
is an emergency, call 9 1 1.

An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures will occur. The combination of hot
temperatures and high humidity will combine to create a DANGEROUS
SITUATION in which heat illnesses are likely. Drink plenty of
fluids, stay in an air-conditioned room, stay out of the sun, and
check up on relatives and neighbors.

Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

DEZ004-NJZ001-014-024>026-PAZ054-055-181200-
/O.CON.KPHI.EH.A.0002.190719T1600Z-190722T0200Z/
Delaware Beaches-Sussex-Eastern Monmouth-
Atlantic Coastal Cape May-Coastal Atlantic-Coastal Ocean-Carbon-
Monroe-
Including the cities of Rehoboth Beach, Newton, Sandy Hook, 
Ocean City, Atlantic City, Long Beach Island, Jim Thorpe, 
and Stroudsburg
747 PM EDT Wed Jul 17 2019

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON
THROUGH SUNDAY EVENING...

* HEAT INDEX VALUES...Up to 109 due to temperatures in the mid 
  90s, and dewpoints in the lower 70s.

* TIMING...The highest Heat Index values will occur during the
  daytime, especially on Saturday. However, given how hot and
  oppressive this airmass will be, there will not be much relief
  at night.

* IMPACTS...The heat and humidity may cause heat stress during 
  outdoor exertion or extended exposure.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Excessive Heat Watch means that a prolonged period of hot
temperatures is expected. The combination of hot temperatures and
high humidity will combine to create a DANGEROUS SITUATION in
which heat illnesses are possible. Drink plenty of fluids, stay
in an air-conditioned room, stay out of the sun, and check up on
relatives and neighbors.

&&

$$
052 
WWUS71 KPHI 180704
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
304 AM EDT Thu Jul 18 2019

DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-182100-
/O.CON.KPHI.EH.W.0002.000000T0000Z-190722T0200Z/
New Castle-Mercer-Gloucester-Camden-Northwestern Burlington-
Delaware-Philadelphia-Eastern Chester-Eastern Montgomery-
Lower Bucks-
Including the cities of Wilmington, Trenton, Glassboro, Camden, 
Cherry Hill, Moorestown, Mount Holly, Media, Philadelphia, 
West Chester, Kennett Square, Norristown, Lansdale, Morrisville, 
and Doylestown
304 AM EDT Thu Jul 18 2019

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

* HEAT INDEX VALUES...Near 100 this afternoon, 102 to 107 on 
  Friday afternoon, 107 to 112 on Saturday afternoon, and 104 to 
  109 on Sunday afternoon.

* TEMPERATURES...Maximum readings near 90 this afternoon, in the 
  middle and upper 90s on Friday afternoon, near 100 on Saturday 
  afternoon, and in the upper 90s on Sunday afternoon. Overnight 
  lows will range mainly from the middle 70s to the lower 80s.

* TIMING...The most dangerous of the heat and humidity will occur
  from mid afternoon into the early evening each day.

* IMPACTS...The excessive heat and humidity may cause heat stress
  or heat stroke. The most susceptible individuals are the 
  elderly and those with pre-existing health issues.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take extra precautions if you work or spend time outside. When 
possible, reschedule strenuous activities to the early morning or 
the late evening. Know the signs and symptoms of heat exhaustion 
and heat stroke. Wear light weight and loose fitting clothing. 
Drink plenty of water.

To reduce your risk during outdoor work, the Occupational Safety 
and Health Administration recommends scheduling frequent rest 
breaks in a shaded or air conditioned environment. Anyone overcome
by heat should be moved to a cool shaded location. Heat stroke is
an emergency, call 9 1 1.

An Excessive Heat Warning means that a prolonged period of 
dangerously hot temperatures will occur. The combination of hot 
temperatures and high humidity will create a DANGEROUS SITUATION. 
Stay in an air-conditioned environment, stay out of the sun, and 
check on elderly relatives and neighbors.

Young children and pets should never be left unattended in a 
vehicle under any circumstance. This is especially true during hot
weather when a car's interior can reach lethal temperatures in a 
matter of minutes.

&&

$$

NJZ001-007>010-012>014-020-026-027-PAZ054-055-060>062-101-103-105-
182100-
/O.CON.KPHI.EH.A.0002.190719T1600Z-190722T0200Z/
Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-
Western Monmouth-Eastern Monmouth-Ocean-Coastal Ocean-
Southeastern Burlington-Carbon-Monroe-Berks-Lehigh-Northampton-
Western Chester-Western Montgomery-Upper Bucks-
Including the cities of Newton, Washington, Morristown, 
Flemington, Somerville, New Brunswick, Freehold, Sandy Hook, 
Jackson, Long Beach Island, Wharton State Forest, Jim Thorpe, 
Stroudsburg, Reading, Allentown, Bethlehem, Easton, Honey Brook, 
Oxford, Collegeville, Pottstown, Chalfont, and Perkasie
304 AM EDT Thu Jul 18 2019

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON 
THROUGH SUNDAY EVENING...

* HEAT INDEX VALUES...100 to 105 on Friday afternoon, 107 to 112 
  on Saturday afternoon, and 101 to 106 on Sunday afternoon.

* TEMPERATURES...Maximum readings in the lower and middle 90s on 
  Friday afternoon, and in the middle and upper 90s on Saturday 
  afternoon and Sunday afternoon. Overnight lows will range mainly
  in the 70s.

* TIMING...The most dangerous of the heat and humidity will occur
  from mid afternoon into the early evening each day.

* IMPACTS...The excessive heat and humidity may cause heat stress
  or heat stroke. The most susceptible individuals are the 
  elderly and those with pre-existing health issues.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take extra precautions if you work or spend time outside. When 
possible, reschedule strenuous activities to the early morning or 
the late evening. Know the signs and symptoms of heat exhaustion 
and heat stroke. Wear light weight and loose fitting clothing. 
Drink plenty of water.

To reduce your risk during outdoor work, the Occupational Safety 
and Health Administration recommends scheduling frequent rest 
breaks in a shaded or air conditioned environment. Anyone overcome
by heat should be moved to a cool shaded location. Heat stroke is
an emergency, call 9 1 1.

An Excessive Heat Watch means that a prolonged period of 
dangerously hot temperatures is expected. The combination of hot 
temperatures and high humidity will create a DANGEROUS SITUATION. 
Stay in an air-conditioned environment, stay out of the sun, and 
check on elderly relatives and neighbors.

Young children and pets should never be left unattended in a 
vehicle under any circumstance. This is especially true during hot
weather when a car's interior can reach lethal temperatures in a 
matter of minutes.

&&

$$

DEZ002>004-MDZ008-012-015-019-020-NJZ016-021>025-182100-
/O.CON.KPHI.EH.A.0002.190719T1600Z-190722T0200Z/
Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD-Queen Annes-
Talbot-Caroline-Salem-Cumberland-Atlantic-Cape May-
Atlantic Coastal Cape May-Coastal Atlantic-
Including the cities of Dover, Georgetown, Rehoboth Beach, 
Elkton, Chestertown, Centreville, Easton, Denton, Pennsville, 
Millville, Hammonton, Cape May Court House, Ocean City, 
and Atlantic City
304 AM EDT Thu Jul 18 2019

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON 
THROUGH SUNDAY EVENING...

* HEAT INDEX VALUES...101 to 106 on Friday afternoon, 107 to 112 
  on Saturday afternoon, and 105 to 110 on Sunday afternoon.

* TEMPERATURES...Maximum readings in the middle and upper 90s on 
  Friday afternoon, Saturday afternoon, and Sunday afternoon. 
  Overnight lows will range mainly from the middle 70s to the 
  lower 80s.

* TIMING...The most dangerous of the heat and humidity will occur
  from mid afternoon into the early evening each day.

* IMPACTS...The excessive heat and humidity may cause heat stress
  or heat stroke. The most susceptible individuals are the 
  elderly and those with pre-existing health issues.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take extra precautions if you work or spend time outside. When 
possible, reschedule strenuous activities to the early morning or 
the late evening. Know the signs and symptoms of heat exhaustion 
and heat stroke. Wear light weight and loose fitting clothing. 
Drink plenty of water.

To reduce your risk during outdoor work, the Occupational Safety 
and Health Administration recommends scheduling frequent rest 
breaks in a shaded or air conditioned environment. Anyone overcome
by heat should be moved to a cool shaded location. Heat stroke is
an emergency, call 9 1 1.

An Excessive Heat Watch means that a prolonged period of 
dangerously hot temperatures is expected. The combination of hot 
temperatures and high humidity will create a DANGEROUS SITUATION. 
Stay in an air-conditioned environment, stay out of the sun, and 
check on elderly relatives and neighbors.

Young children and pets should never be left unattended in a 
vehicle under any circumstance. This is especially true during hot
weather when a car's interior can reach lethal temperatures in a 
matter of minutes.

&&

$$

Iovino
464 
WWUS71 KPHI 181941
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
341 PM EDT Thu Jul 18 2019

NJZ001-007>010-012>014-020-026-027-PAZ054-055-060>062-101-103-105-
190345-
/O.UPG.KPHI.EH.A.0002.190719T1600Z-190722T0200Z/
/O.EXB.KPHI.EH.W.0002.190719T1600Z-190722T0200Z/
Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-
Western Monmouth-Eastern Monmouth-Ocean-Coastal Ocean-
Southeastern Burlington-Carbon-Monroe-Berks-Lehigh-Northampton-
Western Chester-Western Montgomery-Upper Bucks-
Including the cities of Newton, Washington, Morristown, 
Flemington, Somerville, New Brunswick, Freehold, Sandy Hook, 
Jackson, Long Beach Island, Wharton State Forest, Jim Thorpe, 
Stroudsburg, Reading, Allentown, Bethlehem, Easton, Honey Brook, 
Oxford, Collegeville, Pottstown, Chalfont, and Perkasie
341 PM EDT Thu Jul 18 2019

...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON FRIDAY TO 10 PM EDT
SUNDAY...

The National Weather Service in Mount Holly has issued an
Excessive Heat Warning, which is in effect from noon Friday to
10 PM EDT Sunday. The Excessive Heat Watch is no longer in
effect. 

* HEAT INDEX VALUES...100 to 105 on Friday afternoon, 105 to 110
  on Saturday afternoon, and 100 to 105 on Sunday afternoon. 

* TIMING...The most dangerous of the heat and humidity will occur
  from mid afternoon into the early evening each day. However,
  overnight minimum temperatures will only drop into the mid to
  upper 70s, providing little relief from daytime heat. 

* IMPACTS...The excessive heat and humidity may cause heat 
  stress or heat stroke. The most susceptible individuals are 
  the elderly and those with pre-existing health issues. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to the early morning or
the late evening. Know the signs and symptoms of heat exhaustion
and heat stroke. Wear light weight and loose fitting clothing.
Drink plenty of water.

Young children and pets should never be left unattended in a
vehicle under any circumstance. This is especially true during
hot weather when a car's interior can reach lethal temperatures
in a matter of minutes.

To reduce risk during outdoor work, the Occupational Safety and 
Health Administration recommends scheduling frequent rest breaks 
in shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an 
emergency, call 9 1 1.

An Excessive Heat Warning means that a prolonged period of 
dangerously hot temperatures will occur. The combination of hot 
temperatures and high humidity will combine to create a DANGEROUS 
SITUATION in which heat illnesses are likely. Drink plenty of 
fluids, stay in an air-conditioned room, stay out of the sun, and 
check up on relatives and neighbors.


&&

$$

DEZ002>004-MDZ008-012-015-019-020-NJZ016-021>025-190345-
/O.UPG.KPHI.EH.A.0002.190719T1600Z-190722T0200Z/
/O.EXB.KPHI.EH.W.0002.190719T1600Z-190722T0200Z/
Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD-Queen Annes-
Talbot-Caroline-Salem-Cumberland-Atlantic-Cape May-
Atlantic Coastal Cape May-Coastal Atlantic-
Including the cities of Dover, Georgetown, Rehoboth Beach, 
Elkton, Chestertown, Centreville, Easton, Denton, Pennsville, 
Millville, Hammonton, Cape May Court House, Ocean City, 
and Atlantic City
341 PM EDT Thu Jul 18 2019

...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON FRIDAY TO 10 PM EDT
SUNDAY...

The National Weather Service in Mount Holly has issued an
Excessive Heat Warning, which is in effect from noon Friday to
10 PM EDT Sunday. The Excessive Heat Watch is no longer in
effect. 

* HEAT INDEX VALUES...100 to 105 on Friday afternoon, 105 to 115
  on Saturday afternoon, and 105 to 110 on Sunday afternoon. 

* TIMING...The most dangerous of the heat and humidity will occur
  from mid afternoon into the early evening each day. However,
  overnight minimum temperatures will only drop into the mid to
  upper 70s to around 80, providing little relief from daytime 
  heat.

* IMPACTS...The excessive heat and humidity may cause heat 
  stress or heat stroke. The most susceptible individuals are 
  the elderly and those with pre-existing health issues. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to the early morning or
the late evening. Know the signs and symptoms of heat exhaustion
and heat stroke. Wear light weight and loose fitting clothing.
Drink plenty of water.

Young children and pets should never be left unattended in a
vehicle under any circumstance. This is especially true during
hot weather when a car's interior can reach lethal temperatures
in a matter of minutes.

To reduce risk during outdoor work, the Occupational Safety and 
Health Administration recommends scheduling frequent rest breaks 
in shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an 
emergency, call 9 1 1.

An Excessive Heat Warning means that a prolonged period of 
dangerously hot temperatures will occur. The combination of hot 
temperatures and high humidity will combine to create a DANGEROUS 
SITUATION in which heat illnesses are likely. Drink plenty of 
fluids, stay in an air-conditioned room, stay out of the sun, and 
check up on relatives and neighbors.

&&

$$

DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-190345-
/O.CON.KPHI.EH.W.0002.000000T0000Z-190722T0200Z/
New Castle-Mercer-Gloucester-Camden-Northwestern Burlington-
Delaware-Philadelphia-Eastern Chester-Eastern Montgomery-
Lower Bucks-
Including the cities of Wilmington, Trenton, Glassboro, Camden, 
Cherry Hill, Moorestown, Mount Holly, Media, Philadelphia, 
West Chester, Kennett Square, Norristown, Lansdale, Morrisville, 
and Doylestown
341 PM EDT Thu Jul 18 2019

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

* HEAT INDEX VALUES...Near 100 this afternoon, 100 to 110 on
  Friday afternoon, 110 to 115 on Saturday afternoon, and 105 to
  110 on Sunday afternoon. 

* TIMING...The most dangerous of the heat and humidity will occur
  from mid afternoon into the early evening each day. However,
  overnight minimum temperatures will only drop into the upper 
  70s to lower 80s, providing little relief from daytime heat. 

* IMPACTS...The excessive heat and humidity may cause heat stress
  or heat stroke. The most susceptible individuals are the elderly
  and those with pre-existing health issues.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to the early morning or
the late evening. Know the signs and symptoms of heat exhaustion
and heat stroke. Wear light weight and loose fitting clothing.
Drink plenty of water.

Young children and pets should never be left unattended in a
vehicle under any circumstance. This is especially true during
hot weather when a car's interior can reach lethal temperatures
in a matter of minutes.

To reduce risk during outdoor work, the Occupational Safety and 
Health Administration recommends scheduling frequent rest breaks 
in shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an 
emergency, call 9 1 1.

An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures will occur. The combination of hot
temperatures and high humidity will create a DANGEROUS SITUATION.
Stay in an air-conditioned environment, stay out of the sun, and
check on elderly relatives and neighbors.

&&

$$

What forecasters said that day

The local office's own words before this excessive heat watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this excessive heat watch went out at Jul 17, 2:14 PM EDT, 1 hour earlier.

Area forecast discussion, Jul 17, 2:14 PM EDT, 1 hour before
Area Forecast Discussion
National Weather Service Mount Holly NJ
214 PM EDT Wed Jul 17 2019

.SYNOPSIS...
The remnants of former tropical cyclone Barry will cross the
area later today into Thursday. High pressure will then
generally prevail into the weekend although a weak cold front
associated with a low in Canada may cross the area Sunday. A
more significant cold front will pass through the area early
next week.

&&

.NEAR TERM /THROUGH TONIGHT/...
A severe thunderstorm watch has been issued until 10 PM for the
northern 2/3rd of the CWA.

We have expanded the Flash Flood Watch to include Carbon and
Monroe, Pennsylvania.

Following coordination with neighboring offices. We added a tier
of counties NW to the Heat advisory for today. Cape May county
NJ was also added.

There are several issues on tap for today. Behind a departing
warm front this morning, and then SW flow ushers an increasingly
hot and humid airmass into the Northeast and Mid-Atlantic. High
temperatures will soar into the low to mid 90s with the highest
temperatures along the I-95 corridor and into southeast New
Jersey and Delmarva. Surface dewpoints climb well into the low
to mid 70s, and even into the upper 70s in parts of the eastern
shore of Maryland due to flow off the Chesapeake Bay. Some
mixing is possible in the afternoon, but dewpoints would only
drop by a few degrees or so, and this really will not have much
of an effect on the heat index.

Max heat index values will approach 100 degrees across the
southern Poconos and Sussex County NJ. Elsewhere...max heat
index values up to 105 are possible. The max heat index across
parts of Delmarva could be as high as 110.

The other concern for today is that with the high heat and
humidity, surface-based CAPE values will range from 1000-2000
J/kg, but could be higher in some spots. PWATs will be well in
excess of 2-2.5 inches, and with the approach of the remnants of
Barry later today, this sets the stage for afternoon showers
and thunderstorms. There is not much 0-6 km Bulk Shear,
generally upwards of 20 kt, but with abundant moisture in place,
the primary threat will be heavy rain/flash flooding, but
cannot rule out severe storms with damaging wind gusts.

Though convection begins in the afternoon, the most likely
threat for flash flooding and severe weather will be in the
evening, after 6 pm.

&&

.SHORT TERM /THURSDAY/...
As has been the case in the last several months, the lowest
Flash Flood Guidance values are across much of New Jersey and
southeast Pennsylvania, generally 1.5-2 inches in 1 hour, and as
high as 3 inches in 3 hours, and as high as 4 inches in 6
hours. Based on latest model QPF fields from the HRRR, NAM NEST,
Hi-res ARW and Hi-res NMM, think there will be spots that pick
up 3+ inches of QPF from late afternoon through this evening.
Even the HREF Ensemble max QPF showing pockets of 3-5 inches of
rain.

Will go ahead and issue a Flash Flood Watch starting in the
afternoon, but running through 1 am.

There is little consistency among the models as to where the
heaviest precip will fall, but think focus will be along the
I-95 corridor and areas west. For Delmarva and southeast New
Jersey, FFG values are quite a bit higher. Cannot rule out
flooding and flash flooding, but will hold off on the Watch for
those areas.

Warm and muggy tonight with lows in the 70s and dewpoints not
much lower than the ambient air temperature. With the moisture
from the rainfall, can expect fog and low stratus to develop in
the wake of the showers and thunderstorms.

&&

.LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/...
Synoptic Overview: The long term period begins with both the
mid-lvl and lower lvl circulations associated with Barry's
remnants having just crossed the area. An expansive H5 ridge
will then set up over the southern-tier of the US on Friday. The
ridge will remain in place until Sunday at which point a
shortwave trough digging from Canada will act to split it. The
western half of the ridge will retrograde into the southwestern
US while the eastern half is pushed offshore into the Atlantic.
A fairly healthy (by July standards) cold front associated with
the shortwave's surface reflection will cross the area Monday
into Tuesday.

The main story of the extended continues to be the potential
for excessive heat Friday through Sunday. Fortunately it appears
that beginning early next week the overall synoptic pattern
will become characterized by longwave troughing over the eastern
US. This pattern would favor a more mild end of July.

Dailies:

Thursday... Although deep-layer moisture and dynamic lift will
decrease on Thursday as Barry's remnants begin to pull away,
sufficient lingering moisture and instability should be
sufficient for continued showers and thunderstorms. Think the
overall flash flood and severe threats will be lower during the
day on Thursday given the lower moisture/instability parameters
and modest height rises behind the departing shortwave. Thursday
will also be a bit cooler than any of the days surrounding it
due to considerable cloud cover/precipitation, and generally
think highs will struggle to reach 90. That being said heat
indices could still very well top out near 100 in portions of
the urban corridor as dewpoints remain elevated with somewhat
inhibited mixing due to the aforementioned cloud cover.

Friday/Saturday... Friday will be hot and Saturday will be very
hot as the ridge builds to our SW. Heat indices will generally
be in the 100-105 degree range on Friday, while on Saturday
105-110 readings will be common (with locally higher values even
possible). The only real uncertainty is how efficiently
dewpoints can mix down in the afternoons, but regardless
dangerous heat seems like a certainty. Additionally lows in the
upper 70s to low 80s Saturday and Sunday mornings will not help
with any recovery. Kept PoPs below mentionable both Friday and
Saturday although can't totally rule out some weakly-forced
diurnal storms (e.g. sea breeze or terrain related).

Sunday... A weak cold front may sneak by the area early Sunday
which will result in temperatures slightly cooler than Saturday,
but still very warm i.e. heat indices topping out in the
100-105 range. As the ridge flattens and shortwave energy
approaches from the west the chance of showers and thunderstorms
also increases.

Monday/Tuesday... The main cold front looks to cross the area
in this time frame and will likely be accompanied by some
precipitation given its dynamic support (an amplifying trough
and southward sagging upper jet). Temperatures Monday are a bit
uncertain and will depend largely on frontal/precipitation
timing, however generally think they will top out below any heat
advisory criteria. By Tuesday generally expect high
temperatures in the 80s and dewpoints dropping down into the 60s
with this more mild airmass likely sticking around a bit.

&&

.AVIATION /18Z WEDNESDAY THROUGH MONDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas.

This afternoon...Mainly VFR. SHRA/TSRA possible this afternoon,
first at KRDG/KABE, then south towards KTTN/KPNE/KPHL. MVFR or
lower conditions in SHRA/TSRA, and TSRA will be capable of
torrential rain and strong wind gusts. Winds otherwise SW 5-10
kt, except at KACY/KMIV/KILG, where afternoon sea breezes could
turn winds to more of a southerly direction.

Tonight...VFR until showers and thunderstorms move across the
terminals from W to E this evening before diminishing by midnight.
Lower CIGS/VSBYS with the activity and IFR is possible any cell
moves directly over a terminal. Lower CIGS (MVFR) will develop
behind the showers and some fog is probable as well. Overall, winds
will be SW to W at 5 to 10 knots overnight.

Thursday...Slow morning recovery from MVFR CIGS/VSBYS early then VFR
developing by late morning. More showers and a few tstms will
develop during the afternoon. Winds will be mostly SW around 10
knots.

OUTLOOK...

Thursday...Frequent showers and a chance of thunderstorms will
bring a chance of lower CIGS/VSBYS at times. Possibly some
patchy fog Thursday night. Winds generally 5 kts or less.

Friday through Sunday...Mostly VFR with winds generally
southwesterly/westerly 5-10 kts. Some showers and thunderstorms
possible on Sunday.

&&

.MARINE...
Sub-SCA conditions on tap for today and tonight with seas
generally around 2-3 feet and SW winds 10-15 kts gusting to 20
kts or less.

This afternoon and tonight, showers and thunderstorms will move
into the waters and could produce locally strong winds, higher
seas, and reduced visibilities.

OUTLOOK...

Sub-SCA conditions are expected through Sunday winds favoring a
southerly/southwesterly direction 10-15 kts and seas generally
3 feet or less. Thunderstorms Thursday may produce locally
higher winds and seas.

Rip Currents...

There is a high risk for the development of dangerous rip
currents at the New Jersey beaches this afternoon and a moderate
risk for the development of dangerous rip currents at Delaware
beaches today.

Southwest winds become south this afternoon at 15-20 kt with
long period swells. Additionally, low tide will occur during mid
to late afternoon. Given these factors plus the proximity to
the full moon, feel the risk will be higher in New Jersey where
shoreline orientation is more favorable.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Flash Flood Watch until 1 AM EDT Thursday for PAZ054-055-
     060>062-070-071-101>106.
     Heat Advisory until 8 PM EDT this evening for PAZ060>062-101-
     103-105.
     Excessive Heat Warning until 10 PM EDT Sunday for PAZ070-071-
     102-104-106.
NJ...Flash Flood Watch until 1 AM EDT Thursday for NJZ001-007>010-
     012-013-015>019.
     Heat Advisory until 8 PM EDT this evening for NJZ007>010-012-
     013-016-020>023-027.
     High Rip Current Risk until 10 PM EDT this evening for NJZ014-
     024>026.
     Excessive Heat Warning until 10 PM EDT Sunday for NJZ015-
     017>019.
DE...Flash Flood Watch until 1 AM EDT Thursday for DEZ001.
     Heat Advisory until 8 PM EDT this evening for DEZ002-003.
     Excessive Heat Warning until 10 PM EDT Sunday for DEZ001.
MD...Flash Flood Watch until 1 AM EDT Thursday for MDZ008.
     Heat Advisory until 8 PM EDT this evening for MDZ008-012-015-
     019-020.
MARINE...None.

&&

Synopsis...Carr
Near Term...MPS/O'Hara
Short Term...MPS
Long Term...Carr
Aviation...Carr/MPS/O'Hara
Marine...Carr/MPS
Hazardous weather outlook, Jul 17, 2:22 PM EDT, 52 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
222 PM EDT Wed Jul 17 2019

NJZ015-017>019-PAZ070-071-102-104-106-181830-
Mercer-Gloucester-Camden-Northwestern Burlington-Delaware-
Philadelphia-Eastern Chester-Eastern Montgomery-Lower Bucks-
222 PM EDT Wed Jul 17 2019

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 10 PM EDT SUNDAY...
...FLASH FLOOD WATCH IN EFFECT UNTIL 1 AM EDT THURSDAY...
...SEVERE THUNDERSTORM WATCH 516 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for central New Jersey, southern
New Jersey 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.
   Flash Flood Watch.
   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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

   Excessive Heat Warning.

.SPOTTER INFORMATION STATEMENT...

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

DEZ001-181830-
New Castle-
222 PM EDT Wed Jul 17 2019

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 10 PM EDT SUNDAY...
...FLASH FLOOD WATCH IN EFFECT UNTIL 1 AM EDT THURSDAY...

This Hazardous Weather Outlook is for northern Delaware.

.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.
   Flash Flood Watch.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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

   Excessive Heat Warning.

.SPOTTER INFORMATION STATEMENT...

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

NJZ007>010-012-013-PAZ060>062-101-103-105-181830-
Warren-Morris-Hunterdon-Somerset-Middlesex-Western Monmouth-Berks-
Lehigh-Northampton-Western Chester-Western Montgomery-Upper Bucks-
222 PM EDT Wed Jul 17 2019

...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...FLASH FLOOD WATCH IN EFFECT UNTIL 1 AM EDT THURSDAY...
...SEVERE THUNDERSTORM WATCH 516 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for central New Jersey, northern
New Jersey, northwest New Jersey, east central 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.

   Flash Flood Watch.
   Heat Advisory.
   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Excessive heat is possible through Sunday. Heat index values near or
above 100 degrees will be possible  Thursday, potentially reaching
as high as 110 degrees on Friday and Saturday.

.SPOTTER INFORMATION STATEMENT...

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

DEZ002-003-MDZ012-015-019-020-NJZ021-023-181830-
Kent-Inland Sussex-Kent MD-Queen Annes-Talbot-Caroline-Cumberland-
Cape May-
222 PM EDT Wed Jul 17 2019

...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for central Delaware, southern
Delaware, northeast Maryland 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.

   Heat Advisory.

Heavy rain and flooding are possible tonight into Thursday as the
remnant low of Barry passes through the region.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Excessive heat is possible through Sunday. Heat index values near or
above 100 degrees will be possible Thursday, potentially reaching as
high as 110 degrees on Friday and Saturday.

.SPOTTER INFORMATION STATEMENT...

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

MDZ008-NJZ016-181830-
Cecil-Salem-
222 PM EDT Wed Jul 17 2019

...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...FLASH FLOOD WATCH IN EFFECT UNTIL 1 AM EDT THURSDAY...

This Hazardous Weather Outlook is for northeast Maryland 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.

   Flash Flood Watch.
   Heat Advisory.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Excessive heat is possible through Sunday. Heat index values near or
above 100 degrees will be possible  Thursday, potentially reaching
as high as 110 degrees on Friday and Saturday.

.SPOTTER INFORMATION STATEMENT...

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

NJZ020-022-027-181830-
Ocean-Atlantic-Southeastern Burlington-
222 PM EDT Wed Jul 17 2019

...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...SEVERE THUNDERSTORM WATCH 516 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for 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.

   Heat Advisory.
   Severe Thunderstorm Watch.

Heavy rain and flooding are possible tonight into Thursday as the
remnant low of Barry passes through the region.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Excessive heat is possible through Sunday. Heat index values near or
above 100 degrees will be possible Thursday, potentially reaching as
high as 110 degrees on Friday and Saturday.

.SPOTTER INFORMATION STATEMENT...

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

NJZ001-PAZ054-055-181830-
Sussex-Carbon-Monroe-
222 PM EDT Wed Jul 17 2019

...FLASH FLOOD WATCH IN EFFECT UNTIL 1 AM EDT THURSDAY...
...SEVERE THUNDERSTORM WATCH 516 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for northern New Jersey and
northeast 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.

   Flash Flood Watch.
   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Excessive heat is possible late this week. Heat index values 100 to
110 are possible Friday and Saturday afternoons.

.SPOTTER INFORMATION STATEMENT...

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

NJZ014-025-026-181830-
Eastern Monmouth-Coastal Atlantic-Coastal Ocean-
222 PM EDT Wed Jul 17 2019

...HIGH RIP CURRENT RISK IN EFFECT UNTIL 10 PM EDT THIS EVENING...
...SEVERE THUNDERSTORM WATCH 516 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for 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.

   High Rip Current Risk.
   Severe Thunderstorm Watch.

Heavy rain is possible tonight into Thursday as the remnant low of
Barry passes through the region. Flooding is possible.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Excessive heat is possible late this week. Heat index values
approaching 105 degrees are possible Friday and Saturday.

.SPOTTER INFORMATION STATEMENT...

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

NJZ024-181830-
Atlantic Coastal Cape May-
222 PM EDT Wed Jul 17 2019

...HIGH RIP CURRENT RISK IN EFFECT UNTIL 10 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for 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.

   High Rip Current Risk.

Heavy rain is possible tonight into Thursday as the remnant low of
Barry passes through the region. Flooding is possible.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Excessive heat is possible late this week. Heat index values
approaching 105 degrees are possible Friday and Saturday.

.SPOTTER INFORMATION STATEMENT...

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

DEZ004-181830-
Delaware Beaches-
222 PM EDT Wed Jul 17 2019

This Hazardous Weather Outlook is for southern Delaware.

.DAY ONE...This afternoon and tonight.

There is a moderate risk for the formation of dangerous rip currents
on Wednesday.

Heavy rain is possible tonight into Thursday as the remnant low of
Barry passes through the region. Flooding is possible.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Excessive heat is possible late this week. Heat index values
approaching 105 degrees are possible Friday and Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ430-431-453>455-181830-
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 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-
222 PM EDT Wed Jul 17 2019

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

.DAY ONE...This afternoon and tonight.

Scattered thunderstorms with gusty winds and frequent lightning are
possible this afternoon and evening.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Scattered thunderstorms with gusty winds and frequent lightning are
possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ450>452-181830-
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-
222 PM EDT Wed Jul 17 2019

...SEVERE THUNDERSTORM WATCH 516 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for Atlantic coastal waters.

.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.

   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Jul 17, 1:26 PM EDT, 1 hour 48 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
126 PM EDT Wed Jul 17 2019

NJZ001-007-PAZ055-171800-
Sussex-Warren-Monroe-
126 PM EDT Wed Jul 17 2019

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN SUSSEX...NORTH
CENTRAL WARREN AND NORTHEASTERN MONROE COUNTIES...

At 126 PM EDT, a strong thunderstorm was located near Alpine
Mountain, or 10 miles east of Mount Pocono, moving east at 25 mph.

Wind gusts up to 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Newton, East Stroudsburg, Flatbrookville, Henryville, Werry Lake,
Analomink, Millbrook, Alpine Mountain, Five Points, Crandon Lakes,
Echo Lake, Mountainhome, Arlington Heights, Shawnee, Marshalls Creek
and Hidden Lake.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 4103 7474 4100 7523 4117 7528 4121 7514
      4115 7515 4114 7509 4108 7503 4116 7490
      4121 7486 4124 7486 4129 7482
TIME...MOT...LOC 1726Z 258DEG 24KT 4110 7517

SFJ
Special weather statement, Jul 17, 2:05 PM EDT, 1 hour 9 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
205 PM EDT Wed Jul 17 2019

PAZ054-061-062-171830-
Lehigh-Northampton-Carbon-
205 PM EDT Wed Jul 17 2019

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN LEHIGH...
SOUTHEASTERN CARBON AND WEST CENTRAL NORTHAMPTON COUNTIES...

At 205 PM EDT, a strong thunderstorm was located over Jordan Valley,
or 8 miles south of Lehighton, moving northeast at 15 mph.

Wind gusts up to 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Lehighton, Northampton, Palmerton, Slatington, Walnutport,
Danielsville, Neffs, Beltzville State Park, New Tripoli,
Berlinsville, Jordan Valley, Emerald, Beersville, Schnecksville,
Coplay, Bowmanstown, Parryville, Weissport and Weissport East.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 4092 7559 4069 7540 4062 7576 4070 7583
      4074 7576 4077 7581
TIME...MOT...LOC 1805Z 237DEG 12KT 4071 7572

SFJ
Special weather statement, Jul 17, 2:21 PM EDT, 53 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
221 PM EDT Wed Jul 17 2019

NJZ007-PAZ055-062-171845-
Warren-Monroe-Northampton-
221 PM EDT Wed Jul 17 2019

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL WARREN...SOUTH CENTRAL
MONROE AND NORTHEASTERN NORTHAMPTON COUNTIES...

At 220 PM EDT, a strong thunderstorm was located over Pen Argyl, or
15 miles north of Easton, moving east at 20 mph.

Wind gusts up to 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Blairstown, Bangor, Pen Argyl, Wind Gap, Belvidere, Oxford, Hope,
East Bangor, Stormville, Saylorsburg, Delaware Water Gap, Columbia,
Great Meadows-Vienna, Stroudsburg, Roseto, Portland and Arlington
Heights.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 4085 7533 4097 7534 4100 7491 4081 7492
TIME...MOT...LOC 1820Z 270DEG 18KT 4091 7525

SFJ
Special weather statement, Jul 17, 2:28 PM EDT, 46 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
228 PM EDT Wed Jul 17 2019

NJZ001-171900-
Sussex-
228 PM EDT Wed Jul 17 2019

...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL SUSSEX COUNTY...

At 228 PM EDT, a strong thunderstorm was located over High Point, or
over Matamoras, moving east at 20 mph.

Wind gusts up to 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Port Jervis, Montague, Milford and High Point.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 4129 7455 4128 7483 4130 7482 4131 7479
      4132 7480 4132 7479 4133 7476 4135 7475
      4135 7472 4136 7470
TIME...MOT...LOC 1828Z 270DEG 18KT 4134 7467

SFJ
Special weather statement, Jul 17, 2:44 PM EDT, 30 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
244 PM EDT Wed Jul 17 2019

NJZ001-007-171915-
Sussex-Warren-
244 PM EDT Wed Jul 17 2019

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL SUSSEX AND NORTH CENTRAL
WARREN COUNTIES...

At 243 PM EDT, a strong thunderstorm was located over Millbrook, or
10 miles west of Newton, moving east at 25 mph.

Wind gusts up to 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Newton, Franklin, Ogdensburg, Branchville, Andover, Flatbrookville,
Five Points, Lake Mohawk, Pellettown, Crandon Lakes and Millbrook.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 4126 7464 4103 7456 4100 7461 4099 7502
      4104 7504 4104 7503 4106 7502 4108 7500
      4109 7497 4110 7497 4109 7499 4112 7497
TIME...MOT...LOC 1843Z 255DEG 22KT 4106 7496

SFJ

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 17, 3:54 AM EDTFlash Flood WatchPHICecil19 hr
Jul 17, 6:35 PM EDTSevere Thunderstorm WarningPHICecil40 min
Jul 17, 6:44 PM EDTSevere Thunderstorm WarningPHICaroline, Cecil, Kent, Queen Anne's46 min
Jul 17, 7:15 PM EDTSevere Thunderstorm WarningPHICecil45 min
Jul 17, 7:17 PM EDTSevere Thunderstorm WarningPHICaroline, Queen Anne's43 min
Jul 17, 7:44 PM EDTSevere Thunderstorm WarningPHIKent, New Castle46 min
Jul 17, 3:50 AM EDTRip Current StatementPHIAtlantic, Cape May, Monmouth, Ocean17 hr
Jul 17, 1:50 PM EDTAreal Flood AdvisoryPHISussex, Warren80 min
Jul 17, 1:57 PM EDTSevere Thunderstorm WarningPHISussex, Warren32 min
Jul 17, 2:21 PM EDTSpecial Weather StatementPHIWarren24 min
Jul 17, 2:28 PM EDTSpecial Weather StatementPHISussex32 min
Jul 17, 2:44 PM EDTSpecial Weather StatementPHISussex31 min
Jul 17, 6:22 PM EDTSpecial Weather StatementPHISussex38 min
Jul 17, 6:39 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren51 min
Jul 17, 7:16 PM EDTSpecial Marine WarningPHI59 min
Jul 17, 7:27 PM EDTSpecial Weather StatementPHIHunterdon, Morris48 min
Jul 17, 7:44 PM EDTFlash Flood WarningPHIHunterdon, Morris, Somerset3 hr
Jul 17, 7:56 PM EDTSpecial Weather StatementPHIBurlington, Camden, Gloucester64 min
Jul 16, 9:15 PM EDTSpecial Weather StatementPHIPhiladelphia45 min
Jul 17, 1:26 PM EDTSpecial Weather StatementPHIPike34 min
Jul 17, 2:05 PM EDTSpecial Weather StatementPHILehigh25 min
Jul 17, 5:05 PM EDTSpecial Weather StatementPHICarbon, Monroe40 min
Jul 17, 5:14 PM EDTSpecial Weather StatementPHILehigh46 min
Jul 17, 5:44 PM EDTSpecial Weather StatementPHIMonroe46 min
Jul 17, 5:46 PM EDTAreal Flood AdvisoryPHIMonroe119 min
Jul 17, 5:49 PM EDTSpecial Weather StatementPHILehigh, Northampton41 min
Jul 17, 6:24 PM EDTSpecial Weather StatementPHIBerks51 min
Jul 17, 6:51 PM EDTSevere Thunderstorm WarningPHIBerks, Chester, Montgomery54 min
Jul 17, 6:52 PM EDTAreal Flood AdvisoryPHIBerks113 min
Jul 17, 7:06 PM EDTFlash Flood WarningPHIBerks3 hr
Jul 17, 7:21 PM EDTFlash Flood WarningPHIChester97 min
Jul 17, 7:31 PM EDTSpecial Weather StatementPHILehigh, Northampton44 min
Jul 17, 7:36 PM EDTFlash Flood WarningPHIBucks, Lehigh, Montgomery3 hr
Jul 17, 7:44 PM EDTSpecial Weather StatementPHILehigh31 min

Nearby

Excessive Heat Watches in New Jersey, 2019Excessive Heat Watches in Pennsylvania, 2019Excessive Heat Watches in Maryland, 2019Every excessive heat watch in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.