Alert archive / New Jersey / Excessive Heat Watches in 2019
Excessive Heat Watch 2, NWS Philadelphia/Mount Holly
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.
- 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
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/MPSHazardous 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
SFJSpecial 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
SFJSpecial 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
SFJSpecial 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
SFJThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 3:54 AM EDT | Flash Flood Watch | PHI | Cecil | 19 hr |
| Jul 17, 6:35 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 40 min |
| Jul 17, 6:44 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's | 46 min |
| Jul 17, 7:15 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 45 min |
| Jul 17, 7:17 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's | 43 min |
| Jul 17, 7:44 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle | 46 min |
| Jul 17, 3:50 AM EDT | Rip Current Statement | PHI | Atlantic, Cape May, Monmouth, Ocean | 17 hr |
| Jul 17, 1:50 PM EDT | Areal Flood Advisory | PHI | Sussex, Warren | 80 min |
| Jul 17, 1:57 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 32 min |
| Jul 17, 2:21 PM EDT | Special Weather Statement | PHI | Warren | 24 min |
| Jul 17, 2:28 PM EDT | Special Weather Statement | PHI | Sussex | 32 min |
| Jul 17, 2:44 PM EDT | Special Weather Statement | PHI | Sussex | 31 min |
| Jul 17, 6:22 PM EDT | Special Weather Statement | PHI | Sussex | 38 min |
| Jul 17, 6:39 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 51 min |
| Jul 17, 7:16 PM EDT | Special Marine Warning | PHI | 59 min | |
| Jul 17, 7:27 PM EDT | Special Weather Statement | PHI | Hunterdon, Morris | 48 min |
| Jul 17, 7:44 PM EDT | Flash Flood Warning | PHI | Hunterdon, Morris, Somerset | 3 hr |
| Jul 17, 7:56 PM EDT | Special Weather Statement | PHI | Burlington, Camden, Gloucester | 64 min |
| Jul 16, 9:15 PM EDT | Special Weather Statement | PHI | Philadelphia | 45 min |
| Jul 17, 1:26 PM EDT | Special Weather Statement | PHI | Pike | 34 min |
| Jul 17, 2:05 PM EDT | Special Weather Statement | PHI | Lehigh | 25 min |
| Jul 17, 5:05 PM EDT | Special Weather Statement | PHI | Carbon, Monroe | 40 min |
| Jul 17, 5:14 PM EDT | Special Weather Statement | PHI | Lehigh | 46 min |
| Jul 17, 5:44 PM EDT | Special Weather Statement | PHI | Monroe | 46 min |
| Jul 17, 5:46 PM EDT | Areal Flood Advisory | PHI | Monroe | 119 min |
| Jul 17, 5:49 PM EDT | Special Weather Statement | PHI | Lehigh, Northampton | 41 min |
| Jul 17, 6:24 PM EDT | Special Weather Statement | PHI | Berks | 51 min |
| Jul 17, 6:51 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 54 min |
| Jul 17, 6:52 PM EDT | Areal Flood Advisory | PHI | Berks | 113 min |
| Jul 17, 7:06 PM EDT | Flash Flood Warning | PHI | Berks | 3 hr |
| Jul 17, 7:21 PM EDT | Flash Flood Warning | PHI | Chester | 97 min |
| Jul 17, 7:31 PM EDT | Special Weather Statement | PHI | Lehigh, Northampton | 44 min |
| Jul 17, 7:36 PM EDT | Flash Flood Warning | PHI | Bucks, Lehigh, Montgomery | 3 hr |
| Jul 17, 7:44 PM EDT | Special Weather Statement | PHI | Lehigh | 31 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.