Alert archive / Pennsylvania / Excessive Heat Warnings in 2017
Excessive Heat Warning 2, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this excessive heat warning at Jul 19, 2017, 2:58 PM EDT for 5 counties in Pennsylvania; 4 counties in New Jersey; New Castle County, Delaware. It took effect at Jul 20, 2017, 12:00 PM EDT. It was in force for 32 hr. 3 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 19, 2017, 2:58 PM EDT (18:58 UTC)
- In effect from
- Jul 20, 2017, 12:00 PM EDT
- Expired
- Jul 21, 2017, 8:00 PM EDT
- In force
- 32 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties New Castle County, DE, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Mercer County, NJ, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 66 km from the middle of the area, began a volume at 18:58 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 20, 1:20 PM EDT | WILDFIRE 3500 | Lower Forge, NJ | NJ STATE OFFICIALS REPORT THAT LIGHTNING STRUCK SEVERAL TREES AND STARTED A 3500 ACRE WILDFIRE IN WHARTON STATE FOREST. THE FIRE IS NOW 100 PERCENT CONTAINED. |
| Jul 20, 8:07 PM EDT | TSTM WND DMG | 1 S Marshalls Corner, NJ | TREE DOWN ON STATE HIGHWAY 31 SOUTHBOUND BETWEEN TITUS MILL ROAD AND WOODVILLE ROAD...FORCING A ROAD CLOSURE AND DETOURS. TIME ESTIMATED FROM RADAR. |
| Jul 20, 8:17 PM EDT | TSTM WND DMG | Weber Park, NJ | DOWNED TREE ON STATE HIGHWAY 31 NEAR OLDEN AVENUE. TIME ESTIMATED BY RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 7.0 hours before the alert went out and 220 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
- 1210 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 781 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
768 WWUS71 KPHI 191858 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 258 PM EDT Wed Jul 19 2017 DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-201000- /O.NEW.KPHI.EH.W.0002.170720T1600Z-170722T0000Z/ 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 258 PM EDT Wed Jul 19 2017 ...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON THURSDAY TO 8 PM EDT FRIDAY... The National Weather Service in Mount Holly has issued an Excessive Heat Warning, which is in effect from noon Thursday until 8:00 PM Friday. * TEMPERATURES...Maximum temperatures are forecast to be mainly in the middle 90s on both Thursday and Friday. There will not be much relief at night with low temperatures in the 70s. * HEAT INDEX VALUES...Heat index values are expected to reach the 98 to 103 degree range during the afternoon hours on Thursday and Friday. * IMPACTS...The excessive heat will create a hazard for those who work outdoors. Also, the excessive heat will have a negative impact on susceptible individuals such as the elderly and those with pre-existing health conditions. 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 and be sure to 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 very hot temperatures and high humidity will occur. The combination will create a dangerous situation in which heat related health problems may develop. Drink plenty of fluids, stay in an air conditioned environment, stay out of the sun and be sure to 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
7 follow-up statements
909 WWUS71 KPHI 200743 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 343 AM EDT Thu Jul 20 2017 DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-202000- /O.CON.KPHI.EH.W.0002.170720T1600Z-170722T0000Z/ 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 343 AM EDT Thu Jul 20 2017 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM EDT FRIDAY... * TEMPERATURES...High temperatures are forecast to be in the middle 90s both today and Friday. There will not be much relief at night with low temperatures in the 70s. * HEAT INDEX VALUES...Generally from 98 to 105 degrees during the afternoon hours on Thursday and Friday. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. Excessive heat can be life-threatening among at-risk populations, such as children, the elderly, and those with pre-existing health conditions. 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 and be sure to 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 very hot temperatures and high humidity will occur. The combination will create a dangerous situation in which heat related health problems may develop. Drink plenty of fluids, stay in an air conditioned environment, stay out of the sun and be sure to 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. && $$ DEZ002-003-MDZ008-012-015-019-020-NJZ009-010-012-013-016-020>023- 027-PAZ060>062-101-103-105-202000- /O.NEW.KPHI.HT.Y.0004.170720T1600Z-170720T2300Z/ Kent-Inland Sussex-Cecil-Kent MD-Queen Annes-Talbot-Caroline- 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, 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 343 AM EDT Thu Jul 20 2017 ...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS EVENING... The National Weather Service in Mount Holly has issued a Heat Advisory, which is in effect from noon today to 7 PM EDT this evening. * HEAT INDEX VALUES...From 100 to 105 in southeast Pennsylvania and central New Jersey and 103 to 108 in Delaware, the Eastern Shore of Maryland, and southern New Jersey. * TIMING...This afternoon into early this evening. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. 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. && $$ CMS
446 WWUS71 KPHI 201322 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 922 AM EDT Thu Jul 20 2017 DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-210200- /O.CON.KPHI.EH.W.0002.170720T1600Z-170722T0000Z/ 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 922 AM EDT Thu Jul 20 2017 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT FRIDAY... * TEMPERATURES...High temperatures are forecast to be in the middle 90s both today and Friday. There will not be much relief at night with low temperatures in the 70s. * HEAT INDEX VALUES...Generally from 98 to 105 degrees during the afternoon hours today and Friday. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. Excessive heat can be life-threatening among at-risk populations, such as children, the elderly, and those with pre-existing health conditions. 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 and be sure to 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 very hot temperatures and high humidity will occur. The combination will create a dangerous situation in which heat related health problems may develop. Drink plenty of fluids, stay in an air conditioned environment, stay out of the sun and be sure to 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. && $$ DEZ002-003-MDZ008-012-015-019-020-NJZ009-010-012-013-016-020>023- 027-PAZ060>062-101-103-105-202300- /O.CON.KPHI.HT.Y.0004.170720T1600Z-170720T2300Z/ Kent-Inland Sussex-Cecil-Kent MD-Queen Annes-Talbot-Caroline- 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, 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 922 AM EDT Thu Jul 20 2017 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING... * HEAT INDEX VALUES...From 100 to 105 in southeast Pennsylvania and central New Jersey and 103 to 108 in Delaware, the Eastern Shore of Maryland, and southern New Jersey. * TIMING...This afternoon into early this evening. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. 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. && $$
838 WWUS71 KPHI 201913 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 313 PM EDT Thu Jul 20 2017 DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-210715- /O.CON.KPHI.EH.W.0002.000000T0000Z-170722T0000Z/ 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 313 PM EDT Thu Jul 20 2017 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT FRIDAY... * TEMPERATURES...High temperatures are forecast to be in the middle 90s for the remainder of this afternoon and again on Friday. There will not be much relief overnight with temperatures mostly falling back into the 70s, but remaining near 80 in highly urbanized areas. * HEAT INDEX VALUES...Generally from 98 to 105 degrees during the afternoon hours today and on Friday. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. 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 and be sure to 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 very hot temperatures and high humidity will occur. The combination will create a dangerous situation in which heat related health problems may develop. Drink plenty of fluids, stay in an air conditioned environment, stay out of the sun and be sure to 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. && $$ DEZ002-003-MDZ008-012-015-019-020-NJZ009-010-012-013-016-020>023- 027-PAZ060>062-101-103-105-202300- /O.CON.KPHI.HT.Y.0004.000000T0000Z-170720T2300Z/ Kent-Inland Sussex-Cecil-Kent MD-Queen Annes-Talbot-Caroline- 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, 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 313 PM EDT Thu Jul 20 2017 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING... * HEAT INDEX VALUES...From 100 to 104 in southeast Pennsylvania and central New Jersey and 101 to 106 in Delaware, the Eastern Shore of Maryland, and southern New Jersey. * TIMING...This afternoon into early this evening. For Friday, Heat Index values will be in the upper 90s to 104 degrees. These values fall just under Heat Advisory criteria. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. 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. && $$
227 WWUS71 KPHI 210009 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 809 PM EDT Thu Jul 20 2017 DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-211215- /O.CON.KPHI.EH.W.0002.000000T0000Z-170722T0000Z/ 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 809 PM EDT Thu Jul 20 2017 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT FRIDAY... * TEMPERATURES...In the mid 80s. * HEAT INDEX VALUES...Up to 101 due to temperatures in the mid 80s, and dewpoints around 70. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. 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 and be sure to 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 very hot temperatures and high humidity will occur. The combination will create a dangerous situation in which heat related health problems may develop. Drink plenty of fluids, stay in an air conditioned environment, stay out of the sun and be sure to 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. && $$
229 WWUS71 KPHI 210743 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 343 AM EDT Fri Jul 21 2017 DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-220000- /O.CON.KPHI.EH.W.0002.000000T0000Z-170722T0000Z/ 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 343 AM EDT Fri Jul 21 2017 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * TEMPERATURES...Maximum temperatures are expected to reach the middle 90s this afternoon. * HEAT INDEX VALUES...Generally from 97 to 103 degrees during the afternoon and early evening hours. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. 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 and be sure to 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 very hot temperatures and high humidity will occur. The combination will create a dangerous situation in which heat related health problems may develop. Drink plenty of fluids, stay in an air conditioned environment, stay out of the sun and be sure to 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. && $$ CMS
340 WWUS71 KPHI 211612 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 1212 PM EDT Fri Jul 21 2017 DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-220000- /O.CON.KPHI.EH.W.0002.000000T0000Z-170722T0000Z/ 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 1212 PM EDT Fri Jul 21 2017 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * TEMPERATURES...Maximum temperatures are expected to reach the middle 90s this afternoon. * HEAT INDEX VALUES...Generally from 97 to 103 degrees during the afternoon and early evening hours. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. 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 and be sure to 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 very hot temperatures and high humidity will occur. The combination will create a dangerous situation in which heat related health problems may develop. Drink plenty of fluids, stay in an air conditioned environment, stay out of the sun and be sure to 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. && $$
828 WWUS71 KPHI 212352 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 752 PM EDT Fri Jul 21 2017 DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-220100- /O.EXP.KPHI.EH.W.0002.000000T0000Z-170722T0000Z/ 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 752 PM EDT Fri Jul 21 2017 ...EXCESSIVE HEAT WARNING WILL EXPIRE AT 8 PM EDT THIS EVENING... Temperatures will continue to slowly fall tonight across the warning area thus ending the threat for excessive heat. $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 5:32 PM EDT | Special Weather Statement | PHI | Berks | 58 min |
| Jul 19, 7:26 PM EDT | Special Weather Statement | PHI | Carbon, Monroe | 64 min |
| Jul 19, 1:04 PM EDT | Special Weather Statement | PHI | Ocean | 26 min |
| Jul 19, 1:30 PM EDT | Special Weather Statement | PHI | Atlantic | 30 min |
| Jul 19, 1:37 PM EDT | Areal Flood Advisory | PHI | Ocean | 4 hr |
| Jul 19, 2:50 PM EDT | Special Weather Statement | PHI | Atlantic | 25 min |
| Jul 19, 3:22 PM EDT | Special Weather Statement | PHI | Atlantic | 23 min |
| Jul 19, 3:46 PM EDT | Special Weather Statement | PHI | Atlantic | 14 min |
| Jul 19, 3:56 PM EDT | Areal Flood Advisory | PHI | Atlantic | 4 hr |
| Jul 19, 4:20 PM EDT | Special Weather Statement | PHI | Atlantic | 25 min |
| Jul 19, 6:36 PM EDT | Special Weather Statement | PHI | Atlantic | 54 min |
| Jul 19, 2:48 PM EDT | Special Weather Statement | PHI | Sussex | 57 min |
| Jul 19, 3:07 PM EDT | Special Weather Statement | PHI | Kent | 38 min |
| Jul 19, 3:21 PM EDT | Special Weather Statement | PHI | Kent | 24 min |
| Jul 19, 3:37 PM EDT | Special Weather Statement | PHI | Kent | 38 min |
| Jul 19, 3:42 PM EDT | Areal Flood Advisory | PHI | Kent | 4 hr |
| Jul 19, 5:54 PM EDT | Special Weather Statement | PHI | Sussex | 66 min |
Nearby
Excessive Heat Warnings in Pennsylvania, 2017Excessive Heat Warnings in New Jersey, 2017Excessive Heat Warnings in Delaware, 2017Every excessive heat warning in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.