Alert archive / New York / Excessive Heat Watches in 2021
Excessive Heat Watch 2, NWS New York, NY
NWS New York, NY issued this excessive heat watch at Aug 11, 2021, 4:45 PM EDT for 5 counties in New Jersey; 11 counties in New York; 4 counties in Connecticut. It took effect at Aug 13, 2021, 1:00 PM EDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Aug 11, 2021, 4:45 PM EDT (20:45 UTC)
- In effect from
- Aug 13, 2021, 1:00 PM EDT
- Expired
- Aug 12, 2021, 3:22 PM EDT
- In force
- Issued by
- NWS New York, NY
Counties Greater Bridgeport Planning Region, CT, Lower Connecticut River Valley Planning Region, CT, Naugatuck Valley Planning Region, CT, Southeastern Connecticut Planning Region, CT, Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Passaic County, NJ, Union County, NJ, Bronx County, NY, Kings County, NY, Nassau County, NY, New York County, NY, Orange County, NY, Putnam County, NY, Queens County, NY, Richmond County, NY, Rockland County, NY, Suffolk County, NY, Westchester County, NY
The radar
The Brookhaven radar (KOKX), 71 km from the middle of the area, began a volume at 20:47 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
Brookhaven, NY (KOKX), launched 12:00Z, 8.8 hours before the alert went out and 71 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
- 977 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 711 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
042 WWUS71 KOKX 112045 NPWOKX URGENT - WEATHER MESSAGE National Weather Service New York NY 445 PM EDT Wed Aug 11 2021 NYZ072>075-176-178-121000- /O.CAN.KOKX.EH.W.0002.210812T1500Z-210813T0000Z/ /O.NEW.KOKX.EH.A.0002.210813T1700Z-210814T0000Z/ /O.EXT.KOKX.EH.W.0003.000000T0000Z-210813T0000Z/ New York (Manhattan)-Bronx-Richmond (Staten Island)- Kings (Brooklyn)-Northern Queens-Southern Queens- 445 PM EDT Wed Aug 11 2021 ...EXCESSIVE HEAT WARNING NOW IN EFFECT UNTIL 8 PM EDT THURSDAY... ...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... * WHAT...For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 109 on Thursday. For the Excessive Heat Watch, dangerously hot conditions with heat index values up to 107 possible. * WHERE...New York (Manhattan), Bronx, Richmond (Staten Island), Kings (Brooklyn), Northern Queens and Southern Queens Counties. * WHEN...For the Excessive Heat Warning, until 8 PM EDT Thursday. For the Excessive Heat Watch, from Friday afternoon through Friday evening. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...The highest heat index values will occur in the late afternoon to early evening hours each day. PRECAUTIONARY/PREPAREDNESS ACTIONS... New York City residents should call 3 1 1 to identify cooling center locations and obtain 'Beat the Heat' safety tips. An Excessive Heat Warning is issued when the combination of heat and humidity is expected to make it feel like it is 105 degrees or greater. 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. Seniors and those with chronic health problems or mental health conditions are at increased risk. Homes without air conditioning can be much hotter than outdoors. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1. && $$ NJZ002-004-006-103>108-121000- /O.CAN.KOKX.EH.W.0002.210812T1500Z-210813T0000Z/ /O.NEW.KOKX.EH.A.0002.210813T1700Z-210814T0000Z/ /O.EXT.KOKX.EH.W.0003.000000T0000Z-210813T0000Z/ Western Passaic-Eastern Passaic-Hudson-Western Bergen- Eastern Bergen-Western Essex-Eastern Essex-Western Union- Eastern Union- 445 PM EDT Wed Aug 11 2021 ...EXCESSIVE HEAT WARNING NOW IN EFFECT UNTIL 8 PM EDT THURSDAY... ...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... * WHAT...For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 110 on Thursday. For the Excessive Heat Watch, dangerously hot conditions with heat index values up to 107 possible. * WHERE...Western Passaic, Eastern Passaic, Hudson, Western Bergen, Eastern Bergen, Western Essex, Eastern Essex, Western Union and Eastern Union Counties. * WHEN...For the Excessive Heat Warning, until 8 PM EDT Thursday. For the Excessive Heat Watch, from Friday afternoon through Friday evening. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...The highest heat index values will occur in the late afternoon to early evening hours each day. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning is issued when the combination of heat and humidity is expected to make it feel like it is 105 degrees or greater. 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. Seniors and those with chronic health problems or mental health conditions are at increased risk. Homes without air conditioning can be much hotter than outdoors. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1. && $$ NYZ067-068-121000- /O.CAN.KOKX.HT.Y.0005.000000T0000Z-210812T0000Z/ /O.UPG.KOKX.EH.A.0001.210812T1500Z-210813T0000Z/ /O.NEW.KOKX.EH.A.0002.210813T1700Z-210814T0000Z/ /O.EXA.KOKX.EH.W.0002.210812T1500Z-210813T0000Z/ Orange-Putnam- 445 PM EDT Wed Aug 11 2021 ...EXCESSIVE HEAT WARNING IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY... ...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... * WHAT...For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 107 expected. For the Excessive Heat Watch, dangerously hot conditions with heat index values up to 105 possible. * WHERE...Orange and Putnam Counties. * WHEN...For the Excessive Heat Warning, from 11 AM to 8 PM EDT Thursday. For the Excessive Heat Watch, from Friday afternoon through Friday evening. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...Heat advisory conditions with heat indices in the mid to upper 90s are expected to continue through early this evening. The highest heat index values will occur in the late afternoon to early evening hours each day. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning is issued when the combination of heat and humidity is expected to make it feel like it is 105 degrees or greater. 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. Seniors and those with chronic health problems or mental health conditions are at increased risk. Homes without air conditioning can be much hotter than outdoors. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1. && $$ CTZ005>011-121000- /O.CAN.KOKX.HT.Y.0005.000000T0000Z-210812T0000Z/ /O.UPG.KOKX.HT.Y.0006.210812T1500Z-210813T0000Z/ /O.NEW.KOKX.EH.A.0002.210813T1700Z-210814T0000Z/ /O.EXA.KOKX.EH.W.0002.210812T1500Z-210813T0000Z/ Northern Fairfield-Northern New Haven-Northern Middlesex- Northern New London-Southern Fairfield-Southern New Haven- Southern Middlesex- 445 PM EDT Wed Aug 11 2021 ...EXCESSIVE HEAT WARNING IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY... ...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... * WHAT...For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 107 expected. For the Excessive Heat Watch, dangerously hot conditions with heat index values up to 105 possible. * WHERE...Northern Fairfield, Northern New Haven, Northern Middlesex, Northern New London, Southern Fairfield, Southern New Haven and Southern Middlesex Counties. * WHEN...For the Excessive Heat Warning, from 11 AM to 8 PM EDT Thursday. For the Excessive Heat Watch, from Friday afternoon through Friday evening. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...Heat advisory conditions with heat indices in the mid to upper 90s are expected to continue through early this evening. The highest heat index values will occur in the late afternoon to early evening hours each day. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning is issued when the combination of heat and humidity is expected to make it feel like it is 105 degrees or greater. 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. Seniors and those with chronic health problems or mental health conditions are at increased risk. Homes without air conditioning can be much hotter than outdoors. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1. && $$ NYZ078-177-179-121000- /O.CAN.KOKX.HT.Y.0005.000000T0000Z-210812T0000Z/ /O.UPG.KOKX.HT.Y.0006.210812T1500Z-210813T0000Z/ /O.NEW.KOKX.EH.A.0002.210813T1700Z-210814T0000Z/ /O.EXA.KOKX.EH.W.0002.210812T1500Z-210813T0000Z/ Northwest Suffolk-Northern Nassau-Southern Nassau- 445 PM EDT Wed Aug 11 2021 ...EXCESSIVE HEAT WARNING IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY... ...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... * WHAT...For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 107 expected. For the Excessive Heat Watch, dangerously hot conditions with heat index values up to 105 possible. * WHERE...Northwest Suffolk, Northern Nassau and Southern Nassau Counties. * WHEN...For the Excessive Heat Warning, from 11 AM to 8 PM EDT Thursday. For the Excessive Heat Watch, from Friday afternoon through Friday evening. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...Heat advisory conditions with heat indices in the mid 90s are expected to continue through early this evening. The highest heat index values will occur in the late afternoon to early evening hours each day. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning is issued when the combination of heat and humidity is expected to make it feel like it is 105 degrees or greater. 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. Seniors and those with chronic health problems or mental health conditions are at increased risk. Homes without air conditioning can be much hotter than outdoors. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1. && $$ NYZ069>071-121000- /O.CAN.KOKX.HT.Y.0005.000000T0000Z-210812T0000Z/ /O.NEW.KOKX.EH.A.0002.210813T1700Z-210814T0000Z/ /O.CON.KOKX.EH.W.0002.210812T1500Z-210813T0000Z/ Rockland-Northern Westchester-Southern Westchester- 445 PM EDT Wed Aug 11 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY... ...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... * WHAT...For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 108 expected. For the Excessive Heat Watch, dangerously hot conditions with heat index values up to 106 possible. * WHERE...Rockland, Northern Westchester and Southern Westchester Counties. * WHEN...For the Excessive Heat Warning, from 11 AM to 8 PM EDT Thursday. For the Excessive Heat Watch, from Friday afternoon through Friday evening. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...Heat advisory conditions with heat indices in the mid to upper 90s are expected to continue through early this evening. The highest heat index values will occur in the late afternoon to early evening hours each day. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning is issued when the combination of heat and humidity is expected to make it feel like it is 105 degrees or greater. 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. Seniors and those with chronic health problems or mental health conditions are at increased risk. Homes without air conditioning can be much hotter than outdoors. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1. && $$ CTZ012-NYZ079-080-121000- /O.CAN.KOKX.HT.Y.0005.000000T0000Z-210812T0000Z/ /O.EXT.KOKX.HT.Y.0006.210811T2045Z-210814T0000Z/ Southern New London-Northeast Suffolk-Southwest Suffolk- 445 PM EDT Wed Aug 11 2021 ...HEAT ADVISORY NOW IN EFFECT UNTIL 8 PM EDT FRIDAY... * WHAT...Heat index values up to around 100. * WHERE...In Connecticut, Southern New London County. In New York, Southwest Suffolk and Northeast Suffolk Counties. * WHEN...Until 8 PM EDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. * ADDITIONAL DETAILS...Heat advisory conditions with heat indices in the mid 90s are expected to continue through early this evening. The highest heat index values will occur in the late afternoon to early evening hours each day. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory is issued when the combination of heat and humidity is expected to make it feel like it is 95 to 99 degrees for two or more consecutive days, or 100 to 104 degrees for any length of time. Seniors and those with chronic health problems or mental health conditions are at an increased risk. Homes without air conditioning can be much hotter than outdoor temperatures. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1. && $$ NYZ081-121000- /O.EXB.KOKX.HT.Y.0006.210812T1700Z-210814T0000Z/ Southeast Suffolk- 445 PM EDT Wed Aug 11 2021 ...HEAT ADVISORY IN EFFECT FROM 1 PM THURSDAY TO 8 PM EDT FRIDAY... * WHAT...Heat index values up to 97 expected both Thursday and Friday. * WHERE...Southeast Suffolk County. * WHEN...From 1 PM Thursday to 8 PM EDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. * ADDITIONAL DETAILS...The highest heat index values will occur in the late afternoon to early evening hours both days. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory is issued when the combination of heat and humidity is expected to make it feel like it is 95 to 99 degrees for two or more consecutive days, or 100 to 104 degrees for any length of time. Seniors and those with chronic health problems or mental health conditions are at an increased risk. Homes without air conditioning can be much hotter than outdoor temperatures. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! In cases of heat stroke call 9 1 1. && $$
2 follow-up statements
964 WWUS71 KOKX 120735 NPWOKX URGENT - WEATHER MESSAGE National Weather Service New York NY 335 AM EDT Thu Aug 12 2021 CTZ005>011-NYZ067>071-122000- /O.CON.KOKX.EH.W.0002.210812T1500Z-210813T0000Z/ /O.CON.KOKX.EH.A.0002.210813T1700Z-210814T0000Z/ Northern Fairfield-Northern New Haven-Northern Middlesex- Northern New London-Southern Fairfield-Southern New Haven- Southern Middlesex-Orange-Putnam-Rockland-Northern Westchester- Southern Westchester- 335 AM EDT Thu Aug 12 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS EVENING... ...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... * WHAT...For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 107 expected. For the Excessive Heat Watch, dangerously hot conditions with heat index values up to 105 possible. * WHERE...Portions of southern Connecticut and southeast New York. * WHEN...For the Excessive Heat Warning, from 11 AM this morning to 8 PM EDT this evening. For the Excessive Heat Watch, from Friday afternoon through Friday evening. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...The highest heat index values will occur in the late afternoon to early evening hours each day. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning is issued when the combination of heat and humidity is expected to make it feel like it is 105 degrees or greater. 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. Seniors and those with chronic health problems or mental health conditions are at increased risk. Homes without air conditioning can be much hotter than outdoors. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1. && $$ NJZ002-004-006-103>108-122000- /O.CON.KOKX.EH.W.0003.000000T0000Z-210813T0000Z/ /O.CON.KOKX.EH.A.0002.210813T1700Z-210814T0000Z/ Western Passaic-Eastern Passaic-Hudson-Western Bergen- Eastern Bergen-Western Essex-Eastern Essex-Western Union- Eastern Union- 335 AM EDT Thu Aug 12 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... * WHAT...For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 109. For the Excessive Heat Watch, dangerously hot conditions with heat index values up to 107 possible. * WHERE...Western Passaic, Eastern Passaic, Hudson, Western Bergen, Western Essex, Eastern Bergen, Western Union, Eastern Essex and Eastern Union Counties. * WHEN...For the Excessive Heat Warning, until 8 PM EDT this evening. For the Excessive Heat Watch, from Friday afternoon through Friday evening. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...The highest heat index values will occur in the late afternoon to early evening hours each day. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning is issued when the combination of heat and humidity is expected to make it feel like it is 105 degrees or greater. 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. Seniors and those with chronic health problems or mental health conditions are at increased risk. Homes without air conditioning can be much hotter than outdoors. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1. && $$ NYZ072>075-176-178-122000- /O.CON.KOKX.EH.W.0003.000000T0000Z-210813T0000Z/ /O.CON.KOKX.EH.A.0002.210813T1700Z-210814T0000Z/ New York (Manhattan)-Bronx-Richmond (Staten Island)- Kings (Brooklyn)-Northern Queens-Southern Queens- 335 AM EDT Thu Aug 12 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... * WHAT...For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 107. For the Excessive Heat Watch, dangerously hot conditions with heat index values up to 106 possible. * WHERE...New York (Manhattan), Bronx, Southern Queens, Richmond (Staten Island), Kings (Brooklyn) and Northern Queens Counties. * WHEN...For the Excessive Heat Warning, until 8 PM EDT this evening. For the Excessive Heat Watch, from Friday afternoon through Friday evening. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...The highest heat index values will occur in the late afternoon to early evening hours each day. PRECAUTIONARY/PREPAREDNESS ACTIONS... New York City residents should call 3 1 1 to identify cooling center locations and obtain 'Beat the Heat' safety tips. An Excessive Heat Warning is issued when the combination of heat and humidity is expected to make it feel like it is 105 degrees or greater. 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. Seniors and those with chronic health problems or mental health conditions are at increased risk. Homes without air conditioning can be much hotter than outdoors. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1. && $$ NYZ078-177-179-122000- /O.CON.KOKX.EH.W.0002.210812T1500Z-210813T0000Z/ /O.CON.KOKX.EH.A.0002.210813T1700Z-210814T0000Z/ Northwest Suffolk-Northern Nassau-Southern Nassau- 335 AM EDT Thu Aug 12 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS EVENING... ...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... * WHAT...For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 105 expected. For the Excessive Heat Watch, dangerously hot conditions with heat index values up to 105 possible. * WHERE...Southern Nassau, Northern Nassau and Northwest Suffolk Counties. * WHEN...For the Excessive Heat Warning, from 11 AM this morning to 8 PM EDT this evening. For the Excessive Heat Watch, from Friday afternoon through Friday evening. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...The highest heat index values will occur in the late afternoon to early evening hours each day. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning is issued when the combination of heat and humidity is expected to make it feel like it is 105 degrees or greater. 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. Seniors and those with chronic health problems or mental health conditions are at increased risk. Homes without air conditioning can be much hotter than outdoors. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1. && $$ NYZ081-122000- /O.CON.KOKX.HT.Y.0006.210812T1700Z-210814T0000Z/ Southeast Suffolk- 335 AM EDT Thu Aug 12 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM EDT FRIDAY... * WHAT...Heat index values up to 97 expected. * WHERE...Southeast Suffolk County. * WHEN...From 1 PM this afternoon to 8 PM EDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. * ADDITIONAL DETAILS...The highest heat index values will occur in the late afternoon to early evening hours each day. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory is issued when the combination of heat and humidity is expected to make it feel like it is 95 to 99 degrees for two or more consecutive days, or 100 to 104 degrees for any length of time. Seniors and those with chronic health problems or mental health conditions are at an increased risk. Homes without air conditioning can be much hotter than outdoor temperatures. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1. && $$ CTZ012-NYZ079-080-122000- /O.CON.KOKX.HT.Y.0006.000000T0000Z-210814T0000Z/ Southern New London-Northeast Suffolk-Southwest Suffolk- 335 AM EDT Thu Aug 12 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT FRIDAY... * WHAT...Heat index values up to 102. * WHERE...In Connecticut, Southern New London County. In New York, Southwest Suffolk and Northeast Suffolk Counties. * WHEN...Until 8 PM EDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. * ADDITIONAL DETAILS...The highest heat index values will occur in the late afternoon to early evening hours each day. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory is issued when the combination of heat and humidity is expected to make it feel like it is 95 to 99 degrees for two or more consecutive days, or 100 to 104 degrees for any length of time. Seniors and those with chronic health problems or mental health conditions are at an increased risk. Homes without air conditioning can be much hotter than outdoor temperatures. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! In cases of heat stroke call 9 1 1. && $$
475 WWUS71 KOKX 121922 NPWOKX URGENT - WEATHER MESSAGE National Weather Service New York NY 322 PM EDT Thu Aug 12 2021 NYZ071-131000- /O.CAN.KOKX.EH.A.0002.210813T1700Z-210814T0000Z/ /O.EXT.KOKX.EH.W.0002.000000T0000Z-210814T0000Z/ Southern Westchester- 322 PM EDT Thu Aug 12 2021 ...EXCESSIVE HEAT WARNING NOW IN EFFECT UNTIL 8 PM EDT FRIDAY... * WHAT...Dangerously hot conditions with heat index values up to 107. * WHERE...Southern Westchester County. * WHEN...Until 8 PM EDT Friday. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...The highest heat index values will occur in the late afternoon to early evening hours both days. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning is issued when the combination of heat and humidity is expected to make it feel like it is 105 degrees or greater. 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. Seniors and those with chronic health problems or mental health conditions are at increased risk. Homes without air conditioning can be much hotter than outdoors. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1. && $$ NJZ004-006-103>108-131000- /O.CAN.KOKX.EH.A.0002.210813T1700Z-210814T0000Z/ /O.EXT.KOKX.EH.W.0003.000000T0000Z-210814T0000Z/ Eastern Passaic-Hudson-Western Bergen-Eastern Bergen- Western Essex-Eastern Essex-Western Union-Eastern Union- 322 PM EDT Thu Aug 12 2021 ...EXCESSIVE HEAT WARNING NOW IN EFFECT UNTIL 8 PM EDT FRIDAY... * WHAT...Dangerously hot conditions with heat index values up to 108. * WHERE...Eastern Passaic, Hudson, Western Bergen, Western Essex, Eastern Bergen, Western Union, Eastern Essex and Eastern Union Counties. * WHEN...Until 8 PM EDT Friday. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...The highest heat index values will occur in the late afternoon to early evening hours today and Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning is issued when the combination of heat and humidity is expected to make it feel like it is 105 degrees or greater. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible, and drink plenty of water. Seniors and those with chronic health problems or mental health conditions are at increased risk. Homes without air conditioning can be much hotter than outdoors. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! In cases of heat stroke call 9 1 1. && $$ NYZ072>075-176-178-131000- /O.CAN.KOKX.EH.A.0002.210813T1700Z-210814T0000Z/ /O.EXT.KOKX.EH.W.0003.000000T0000Z-210814T0000Z/ New York (Manhattan)-Bronx-Richmond (Staten Island)- Kings (Brooklyn)-Northern Queens-Southern Queens- 322 PM EDT Thu Aug 12 2021 ...EXCESSIVE HEAT WARNING NOW IN EFFECT UNTIL 8 PM EDT FRIDAY... ...EXCESSIVE HEAT WATCH IS CANCELLED... * WHAT...Dangerously hot conditions with heat index values up to 107. * WHERE...New York (Manhattan), Bronx, Southern Queens, Richmond (Staten Island), Kings (Brooklyn) and Northern Queens Counties. * WHEN...Until 8 PM EDT Friday. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...The highest heat index values will occur in the late afternoon to early evening hours today and Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... New York City residents should call 3 1 1 to identify cooling center locations and obtain 'Beat the Heat' safety tips. An Excessive Heat Warning is issued when the combination of heat and humidity is expected to make it feel like it is 105 degrees or greater. 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. Seniors and those with chronic health problems or mental health conditions are at increased risk. Homes without air conditioning can be much hotter than outdoors. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1. && $$ NJZ002-131000- /O.UPG.KOKX.EH.A.0002.210813T1700Z-210814T0000Z/ /O.EXB.KOKX.HT.Y.0006.210813T0000Z-210814T0000Z/ /O.CON.KOKX.EH.W.0003.000000T0000Z-210813T0000Z/ Western Passaic- 322 PM EDT Thu Aug 12 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...HEAT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 8 PM EDT FRIDAY... * WHAT...For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 105. For the Heat Advisory, heat index values up to 103 expected. * WHERE...Western Passaic County. * WHEN...For the Excessive Heat Warning, until 8 PM EDT this evening. For the Heat Advisory, from 8 PM this evening to 8 PM EDT Friday. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...The highest heat index values will occur in the late afternoon to early evening hours today and Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning is issued when the combination of heat and humidity is expected to make it feel like it is 105 degrees or greater. 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. Seniors and those with chronic health problems or mental health conditions are at increased risk. Homes without air conditioning can be much hotter than outdoors. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1. && $$ CTZ005>008-NYZ067>070-131000- /O.UPG.KOKX.EH.A.0002.210813T1700Z-210814T0000Z/ /O.EXB.KOKX.HT.Y.0006.210813T0000Z-210814T0000Z/ /O.CON.KOKX.EH.W.0002.000000T0000Z-210813T0000Z/ Northern Fairfield-Northern New Haven-Northern Middlesex- Northern New London-Orange-Putnam-Rockland-Northern Westchester- 322 PM EDT Thu Aug 12 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...HEAT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 8 PM EDT FRIDAY... * WHAT...For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 105. For the Heat Advisory, heat index values up to 103 expected. * WHERE...In Connecticut, Northern Fairfield, Northern New Haven, Northern Middlesex and Northern New London Counties. In New York, Orange, Putnam, Rockland and Northern Westchester Counties. * WHEN...For the Excessive Heat Warning, until 8 PM EDT this evening. For the Heat Advisory, from 8 PM this evening to 8 PM EDT Friday. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...The highest heat index values will occur in the late afternoon to early evening hours today and Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning is issued when the combination of heat and humidity is expected to make it feel like it is 105 degrees or greater. 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. Seniors and those with chronic health problems or mental health conditions are at increased risk. Homes without air conditioning can be much hotter than outdoors. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1. && $$ CTZ009>011-131000- /O.UPG.KOKX.EH.A.0002.210813T1700Z-210814T0000Z/ /O.EXB.KOKX.HT.Y.0006.210813T0000Z-210814T0000Z/ /O.CON.KOKX.EH.W.0002.000000T0000Z-210813T0000Z/ Southern Fairfield-Southern New Haven-Southern Middlesex- 322 PM EDT Thu Aug 12 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...HEAT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 8 PM EDT FRIDAY... * WHAT...For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 105. For the Heat Advisory, heat index values up to 104 expected. * WHERE...Southern Fairfield, Southern New Haven and Southern Middlesex Counties. * WHEN...For the Excessive Heat Warning, until 8 PM EDT this evening. For the Heat Advisory, from 8 PM this evening to 8 PM EDT Friday. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...The highest heat index values will occur in the late afternoon to early evening hours today and Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning is issued when the combination of heat and humidity is expected to make it feel like it is 105 degrees or greater. 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. Seniors and those with chronic health problems or mental health conditions are at increased risk. Homes without air conditioning can be much hotter than outdoors. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1. && $$ NYZ078-177-179-131000- /O.UPG.KOKX.EH.A.0002.210813T1700Z-210814T0000Z/ /O.EXB.KOKX.HT.Y.0006.210813T0000Z-210814T0000Z/ /O.CON.KOKX.EH.W.0002.000000T0000Z-210813T0000Z/ Northwest Suffolk-Northern Nassau-Southern Nassau- 322 PM EDT Thu Aug 12 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...HEAT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 8 PM EDT FRIDAY... * WHAT...For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 105. For the Heat Advisory, heat index values up to 104 expected. * WHERE...Northwest Suffolk, Northern Nassau and Southern Nassau Counties. * WHEN...For the Excessive Heat Warning, until 8 PM EDT this evening. For the Heat Advisory, from 8 PM this evening to 8 PM EDT Friday. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...The highest heat index values will occur in the late afternoon to early evening hours today and Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning is issued when the combination of heat and humidity is expected to make it feel like it is 105 degrees or greater. 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. Seniors and those with chronic health problems or mental health conditions are at increased risk. Homes without air conditioning can be much hotter than outdoors. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. 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! In cases of heat stroke call 9 1 1. && $$ CTZ012-NYZ079>081-131000- /O.CON.KOKX.HT.Y.0006.000000T0000Z-210814T0000Z/ Southern New London-Northeast Suffolk-Southwest Suffolk- Southeast Suffolk- 322 PM EDT Thu Aug 12 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT FRIDAY... * WHAT...Heat index values up to 101. * WHERE...In Connecticut, Southern New London County. In New York, Southeast Suffolk, Southwest Suffolk and Northeast Suffolk Counties. * WHEN...Until 8 PM EDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. * ADDITIONAL DETAILS...The highest heat index values will occur in the late afternoon to early evening hours today and Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory is issued when the combination of heat and humidity is expected to make it feel like it is 95 to 99 degrees for two or more consecutive days, or 100 to 104 degrees for any length of time. Seniors and those with chronic health problems or mental health conditions are at an increased risk. Homes without air conditioning can be much hotter than outdoor temperatures. Use air conditioning to stay cool at home or go to a place that has air conditioning. Check on vulnerable friends, family members and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! In cases of heat stroke call 9 1 1. && $$
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 New York, NY wrote its last area forecast discussion before this excessive heat watch went out at Aug 11, 3:33 PM EDT, 1 hour 12 minutes earlier.
Area forecast discussion, Aug 11, 3:33 PM EDT, 1 hour 12 minutes before
Area Forecast Discussion
National Weather Service New York NY
333 PM EDT Wed Aug 11 2021
.SYNOPSIS...
High pressure over the western Atlantic will dominate through
Friday. A cold front crosses the area on Friday night into Saturday
and moves farther offshore Saturday night. High pressure
gradually builds north of the region on Sunday and remains
anchored over New England through next Wednesday.
&&
.NEAR TERM /UNTIL 6 AM THURSDAY MORNING/...
For this update, delayed the onset of potential showers and
storms for most of the forecast area until late in the day.
Otherwise, hourly temps and dewpoints through early afternoon
were adjusted. Also nudged high temperatures across Long Island
upward by a couple of degrees. No changes to headlines at this
time.
A hot and humid airmass continues to build into the area today
with PWAT values over 2 inches and 950mb temps around 30C.
Dewpoints in the mid 70s and temperatures in the mid 80s to mid
90s will allow apparent temperatures to reach advisory and
warning criteria.
Northeast NJ and NYC metro area is under an Excessive Heat
Warning, while the rest of the area, besides southeast Suffolk,
is under a heat advisory. Heat index values between 105 and 107
are expected in the warning areas with 95 to 104 expected in the
advisory areas.
Isolated to scattered showers/tstms are possible this
afternoon and evening. The primary concern would be downdraft
winds and brief heavy rainfall with any storms that could be
potentially become briefly severe. Thereafter, a warm and muggy
night will be on tap with minimum temperatures generally in the
70s, with middle and upper 70s across the metro.
&&
.SHORT TERM /6 AM THURSDAY MORNING THROUGH THURSDAY NIGHT/...
Thursday will feature the highest heat index values of this heat
wave. An Excessive Heat Warning continues for the NYC metro
area, northeast NJ, Rockland and Westchester.
Heat index values in these areas will be between 105 and 108. Was
less confident farther north, in Orange and Putnam, so have
continued with a Watch for now. The rest of the area, besides
southeast Suffolk, is under an Advisory.
Another round of afternoon convection is expected Thursday
afternoon. Expect mainly pulse type storms capable of producing
strong downdraft winds and brief torrential rain with PWATS at
or over 2 inches. With an overall lack of shear expect overall
t-storm organization to be minimal, thus shorter duration pop-up
t-storms are expected during the times mainly of max heating
for the late afternoon and potentially lingering into the
evening hours.
Temperatures Thursday night will continue to be warm and muggy
with lows in the low to mid 70s.
&&
.LONG TERM /FRIDAY THROUGH WEDNESDAY/...
Some minor changes to the forecast on Friday and Saturday, otherwise
NBM and previous forecast were closely followed this update.
Hot and humid conditions will continue on Friday as high pressure
over the Western Atlantic continues to pump warm moist air into the
region. Highs will rival those on Thursday, ranging from around 90
at the coast to the mid 90s across NYC, northeast New Jersey, the
Lower Hudson Valley, and much of interior southern Connecticut. A
few locations across northeast New Jersey could see temperatures
climb into the upper 90s. NBM 50th-75th percentile MaxTs were used,
and are a few degrees warmer than the deterministic NBM and the
previous forecast. With dew points in the low 70s, this will once
again yield heat index values in the mid 90s to lower 100s across
much of the area. The primary exception to this will be across far
eastern Suffolk County and perhaps coastal New London County, where
heat index values will remain about 5 degrees cooler. Additional
heat headlines are likely for Friday, but held off attm given
headlines already in effect for Wednesday and Thursday and in
collaboration with surrounding offices. We do look to fall short of
excessive heat criteria (105F heat index for at least 2 hours),
though it will be close across the urban corridor of NYC and
northeastern NJ.
Much like previous days, showers and thunderstorms are possible
during the afternoon and evening as the atmosphere destabilizes and
a surface trough develops. With precipitable water values ranging
from 1.75-2 inches, heavy rain is possible with these storms, and
weak mid level flow could result in the potential for some minor
flooding.
By Saturday, a cold front will approach the region from the west,
crossing the local area during the afternoon and evening. Lingering
differences between the models with the timing of the cold frontal
passage make the temperature/heat index forecast for Saturday more
uncertain. Increasing mid and high level clouds ahead of the front
should keep temperatures cooler than Friday, although highs are
still expected to rise into the middle to upper 80s across much of
the area, with some lower 90s possible in and around NYC. This could
once again result in heat index values in the mid 90s. In terms of
PoPs, continued to cap them at chance for Saturday afternoon, as the
better dynamics appear to pass north of the area.
The front settles offshore Sunday morning before gradually sinking
south through the day as high pressure builds towards the area from
the west. A few lingering showers will be possible along the coast
early in the day on Sunday, otherwise skies will clear and
temperatures will return to more seasonable levels. High pressure
will remain in control to start the new work week and remain in
control into Wednesday.
&&
.AVIATION /19Z WEDNESDAY THROUGH MONDAY/...
High pressure offshore in the Western Atlantic will remain in
control through the TAF period.
Mainly VFR into this evening. Widely scattered showers and
thunderstorms develop late this afternoon with the degree of
coverage in question. Confidence remains low on this, thus VCTS
was applied in TAFs for the 21-0Z time frame for NYC terminals
on west. Otherwise, VFR mainly prevails into tonight. A few
eastern coastal terminals may briefly drop down to sub VFR
conditions towards early Thursday morning.
Winds S to SW this evening, generally around 10 kt, possibly up to
15 kts for the city and coastal terminals, and just below 10 kt for
the interior terminals. Gusts to around 20 kt at times for KEWR,
KTEB, KLGA, KJFK, and KISP through the evening push. The winds
continue out of the SW tonight and become lighter overall. Similar
wind outlook into Thursday morning with S-SW winds increasing to
around 10 kt by the afternoon.
NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty...
Uncertainty is higher than average around the coverage and timing of
convection / thunderstorms for late this afternoon and early this
evening. Confidence around occurrence remains low. Also any gusts
for coastal / city terminals could linger a bit longer through the
evening.
.OUTLOOK FOR 18Z THURSDAY THROUGH SUNDAY...
.Thursday afternoon through Saturday...Mainly VFR. Chance of
afternoon and evening in showers and thunderstorms with sub VFR
conditions at times.
.Sunday...Mainly VFR.
Detailed information, including hourly TAF wind component forecasts,
can be found at: https:/www.weather.gov/zny/n90
&&
.MARINE...
Sub SCA conditions are expected across the area waters through the
period Thursday night. However, marginal small craft wind gusts on
the ocean and a few on the southern near shore waters are possible
today and later on Thursday.
Sub-SCA conditions are expected on the waters Friday through Sunday
night as the pressure gradient remains week. However, showers and
thunderstorms will be capable of producing hazardous weather at
times, especially Friday and Saturday afternoon/evening. Sub-SCA
conditions will continue from Sunday into early next week.
&&
.HYDROLOGY...
Localized heavy rainfall is possible with any showers and
thunderstorms through Friday. Localized minor flooding will be
possible. Additional showers and thunderstorms are possible on
Saturday, but with lower precipitable water values and increased
flow aloft, not anticipating a flooding threat.
&&
.TIDES/COASTAL FLOODING...
There is a moderate risk of rip current development at Atlantic
Ocean beaches both today and Thursday.
&&
.OKX WATCHES/WARNINGS/ADVISORIES...
CT...Heat Advisory until 8 PM EDT this evening for CTZ005>012.
Heat Advisory from 11 AM to 8 PM EDT Thursday for CTZ005>012.
NY...Heat Advisory until 8 PM EDT this evening for NYZ067>071-
078>080-177-179.
Heat Advisory from 11 AM to 8 PM EDT Thursday for NYZ078>080-
177-179.
Excessive Heat Warning until 8 PM EDT this evening for
NYZ072>075-176-178.
Excessive Heat Warning from 11 AM to 8 PM EDT Thursday for
NYZ069>075-176-178.
Excessive Heat Watch from Thursday morning through Thursday
evening for NYZ067-068.
NJ...Excessive Heat Warning until 8 PM EDT this evening for NJZ002-
004-006-103>108.
Excessive Heat Warning from 11 AM to 8 PM EDT Thursday for
NJZ002-004-006-103>108.
MARINE...None.
&&
SYNOPSIS...Fig/DBR
NEAR TERM...JC/Fig
SHORT TERM...Fig
LONG TERM...DBR
AVIATION...JE
MARINE...Fig/DBR
HYDROLOGY...Fig/DBR
TIDES/COASTAL FLOODING...Hazardous weather outlook, Aug 11, 4:45 PM EDT, 0 minutes before
Hazardous Weather Outlook National Weather Service New York NY 445 PM EDT Wed Aug 11 2021 NJZ004-006-103>108-NYZ072>075-176-178-122215- Eastern Passaic-Hudson-Western Bergen-Eastern Bergen-Western Essex- Eastern Essex-Western Union-Eastern Union-New York (Manhattan)-Bronx- Richmond (Staten Island)-Kings (Brooklyn)-Northern Queens- Southern Queens- 445 PM EDT Wed Aug 11 2021 ...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 8 PM EDT THURSDAY... ...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... This Hazardous Weather Outlook is for northeast New Jersey and southeast New York. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Excessive Heat Warning. .DAYS TWO THROUGH SEVEN...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. Excessive Heat Watch. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. && This Hazardous Weather Outlook provides a summary of potential widespread hazardous weather events that may reach NWS warning criteria. Most long fused NWS watches, warnings, and advisories in effect are highlighted. Please refer to the latest NWS forecasts for weather not meeting NWS warning criteria. NYZ071-122215- Southern Westchester- 445 PM EDT Wed Aug 11 2021 ...EXCESSIVE HEAT WARNING IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY... ...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... This Hazardous Weather Outlook is for southeast New York. .DAY ONE...Tonight. Hazardous weather is not expected at this time. .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. Excessive Heat Watch. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. && This Hazardous Weather Outlook provides a summary of potential widespread hazardous weather events that may reach NWS warning criteria. Most long fused NWS watches, warnings, and advisories in effect are highlighted. Please refer to the latest NWS forecasts for weather not meeting NWS warning criteria. NJZ002-122215- Western Passaic- 445 PM EDT Wed Aug 11 2021 ...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 8 PM EDT THURSDAY... ...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... This Hazardous Weather Outlook is for northeast New Jersey. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Excessive Heat Warning. .DAYS TWO THROUGH SEVEN...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. Excessive Heat Watch. After Thursday hot and humid conditions will continue through at least Friday, with heat index values 100-105. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. && This Hazardous Weather Outlook provides a summary of potential widespread hazardous weather events that may reach NWS warning criteria. Most long fused NWS watches, warnings, and advisories in effect are highlighted. Please refer to the latest NWS forecasts for weather not meeting NWS warning criteria. CTZ009-NYZ067>070-177-122215- Southern Fairfield-Orange-Putnam-Rockland-Northern Westchester- Northern Nassau- 445 PM EDT Wed Aug 11 2021 ...EXCESSIVE HEAT WARNING IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY... ...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... This Hazardous Weather Outlook is for southern Connecticut and southeast New York. .DAY ONE...Tonight. Hazardous weather is not expected at this time. .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. Excessive Heat Watch. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. && This Hazardous Weather Outlook provides a summary of potential widespread hazardous weather events that may reach NWS warning criteria. Most long fused NWS watches, warnings, and advisories in effect are highlighted. Please refer to the latest NWS forecasts for weather not meeting NWS warning criteria. CTZ005>008-010-011-NYZ078-179-122215- Northern Fairfield-Northern New Haven-Northern Middlesex- Northern New London-Southern New Haven-Southern Middlesex- Northwest Suffolk-Southern Nassau- 445 PM EDT Wed Aug 11 2021 ...EXCESSIVE HEAT WARNING IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY... ...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... This Hazardous Weather Outlook is for southern Connecticut and southeast New York. .DAY ONE...Tonight. Hazardous weather is not expected at this time. .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. Excessive Heat Watch. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. && This Hazardous Weather Outlook provides a summary of potential widespread hazardous weather events that may reach NWS warning criteria. Most long fused NWS watches, warnings, and advisories in effect are highlighted. Please refer to the latest NWS forecasts for weather not meeting NWS warning criteria. CTZ012-NYZ079-080-122215- Southern New London-Northeast Suffolk-Southwest Suffolk- 445 PM EDT Wed Aug 11 2021 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT FRIDAY... This Hazardous Weather Outlook is for southern Connecticut and southeast New York. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. .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. Heat Advisory. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. && This Hazardous Weather Outlook provides a summary of potential widespread hazardous weather events that may reach NWS warning criteria. Most long fused NWS watches, warnings, and advisories in effect are highlighted. Please refer to the latest NWS forecasts for weather not meeting NWS warning criteria. NYZ081-122215- Southeast Suffolk- 445 PM EDT Wed Aug 11 2021 ...HEAT ADVISORY IN EFFECT FROM 1 PM THURSDAY TO 8 PM EDT FRIDAY... This Hazardous Weather Outlook is for southeast New York. .DAY ONE...Tonight. Hazardous weather is not expected at this time. .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. Heat Advisory. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. && This Hazardous Weather Outlook provides a summary of potential widespread hazardous weather events that may reach NWS warning criteria. Most long fused NWS watches, warnings, and advisories in effect are highlighted. Please refer to the latest NWS forecasts for weather not meeting NWS warning criteria. ANZ331-332-335-338-340-345-350-353-355-122215- Long Island Sound East of New Haven CT/Port Jefferson NY to the Mouth of the Connecticut River- Long Island Sound East of the Mouth of the Connecticut River- Long Island Sound West of New Haven CT/Port Jefferson NY- New York Harbor-Peconic and Gardiners Bays- South Shore Bays from Jones Inlet through Shinnecock Bay- Moriches Inlet NY to Montauk Point NY out 20 nm- Fire Island Inlet NY to Moriches Inlet NY out 20 nm- Sandy Hook NJ to Fire Island Inlet NY out 20 nm- 445 PM EDT Wed Aug 11 2021 This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...Tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Hazardous weather is not expected at this time that would meet NWS warning criteria. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. && This Hazardous Weather Outlook provides a summary of potential widespread hazardous weather events that may reach NWS warning criteria. Most long fused NWS watches, warnings, and advisories in effect are highlighted. Please refer to the latest NWS forecasts for weather not meeting NWS warning criteria.
In the hours before
Special weather statement, Aug 11, 3:55 PM EDT, 50 minutes before
Special Weather Statement
National Weather Service New York NY
355 PM EDT Wed Aug 11 2021
NYZ067-112045-
Orange NY-
355 PM EDT Wed Aug 11 2021
...A strong thunderstorm will impact portions of northern Orange
County through 445 PM EDT...
At 354 PM EDT, Doppler radar was tracking a strong thunderstorm over
Walden, moving east at 30 mph.
HAZARD...Winds in excess of 30 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Newburgh, Middletown, Port Jervis, Walden, Howells, New Windsor,
Gardnertown, Montgomery, Cuddebackville, Otisville, Huguenot,
Scotchtown, Deerpark, Orange Lake and Mechanicstown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4149 7476 4150 7448 4157 7442 4163 7426
4163 7425 4160 7425 4158 7413 4161 7413
4160 7409 4161 7407 4158 7405 4159 7395
4153 7400 4146 7400 4135 7468 4140 7474
4143 7474 4143 7476
TIME...MOT...LOC 1954Z 254DEG 27KT 4155 7421
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH
JESpecial weather statement, Aug 11, 4:20 PM EDT, 25 minutes before
Special Weather Statement
National Weather Service New York NY
420 PM EDT Wed Aug 11 2021
NYZ067-112100-
Orange NY-
420 PM EDT Wed Aug 11 2021
...A strong thunderstorm will impact portions of northwestern Orange
County through 500 PM EDT...
At 419 PM EDT, Doppler radar was tracking a strong thunderstorm over
Oakland, or near Port Jervis, moving east at 10 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Middletown, Port Jervis, Walden, Howells, Montgomery, Cuddebackville,
Otisville, Huguenot, Scotchtown, Deerpark, Mechanicstown, Maybrook,
Slate Hill, Pine Bush and Circleville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4146 7475 4148 7476 4149 7475 4150 7448
4157 7442 4163 7425 4160 7425 4159 7419
4144 7415 4136 7469 4139 7471 4141 7474
4143 7474 4143 7475 4145 7476
TIME...MOT...LOC 2019Z 253DEG 7KT 4147 7466
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
JEThe office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 7:21 PM EDT | Special Weather Statement | OKX | Bergen, Essex, Passaic | 39 min |
| Aug 11, 7:28 PM EDT | Areal Flood Advisory | OKX | Bergen, Essex, Hudson, Passaic | 2 hr |
| Aug 11, 7:46 PM EDT | Severe Thunderstorm Warning | OKX | Bergen, Essex, Hudson, Passaic | 44 min |
| Aug 11, 7:58 PM EDT | Special Weather Statement | OKX | Bergen | 32 min |
| Aug 11, 3:55 PM EDT | Special Weather Statement | OKX | Orange | 50 min |
| Aug 11, 4:13 PM EDT | Severe Thunderstorm Warning | OKX | Orange | 47 min |
| Aug 11, 4:15 PM EDT | Severe Thunderstorm Warning | OKX | Orange, Putnam | 45 min |
| Aug 11, 4:20 PM EDT | Special Weather Statement | OKX | Orange | 40 min |
| Aug 11, 5:10 PM EDT | Severe Thunderstorm Warning | OKX | Orange | 50 min |
| Aug 11, 5:51 PM EDT | Severe Thunderstorm Warning | OKX | Orange, Putnam | 39 min |
| Aug 11, 6:01 PM EDT | Special Weather Statement | OKX | Orange | 29 min |
| Aug 11, 6:30 PM EDT | Special Weather Statement | OKX | Putnam | 30 min |
| Aug 11, 5:22 PM EDT | Special Weather Statement | OKX | 38 min |
Nearby
Excessive Heat Watches in New York, 2021Excessive Heat Watches in New Jersey, 2021Excessive Heat Watches in Connecticut, 2021Every excessive heat watch in 2021
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.