<\/p>\n
After a slow start<\/a> to Canada\u2019s 2026 fire season, activity picked up by the end of June amid dry, warm conditions and returned closer to the 25-year average. By mid-July, almost 850 fires were actively burning across the country, according to the Canadian Interagency Forest Fire Centre<\/a>. More than 180 of those were burning in Ontario.<\/p>\nThis NOAA-21<\/a>\u00a0image, acquired on the afternoon of July 14, 2026, shows smoke billowing from the Ontario fires. Winds carried the smoke primarily southeast over much of the southern part of the province, as well as parts of Quebec and the U.S. Midwest and Northeast, tinting the sky shades of gray and yellow and the Sun orange in many areas.<\/p>\nThe smoke\u2019s impact on air quality varied, depending largely on altitude. In areas where smoke was high in the atmosphere, air quality impacts were negligible; where it drifted closer to the ground, conditions worsened. Air quality in Toronto, for instance, reached unhealthy levels<\/a>, according to AirNow<\/a>. People in the southern parts of the province were also grappling with a heat wave, compounding the health risks.<\/p>\nMuch of the smoke came from fires in Northwestern Ontario, where eight blazes<\/a> saw significant growth on July 13 and 14. The fires prompted officials to issue evacuation orders for several communities in this part of the province, according to news reports<\/a>. <\/p>\nAs of July 14, fires across Canada have burned 1.9 million hectares (4.7 million acres) since the start of the year\u2014still well below the season totals from the extreme fire years of 2023 and 2025<\/a>. How the rest of the season plays out remains to be seen. A seasonal fire outlook<\/a>\u2014compiled by wildland fire experts from the U.S., Canada, and Mexico\u2014shows where fire conditions are more or less likely through July, August, and September.<\/p>\n<\/div>\nNASA Earth Observatory image by Lauren Dauphin, using VIIRS data from NASA EOSDIS LANCE , GIBS\/Worldview , and the Joint Polar Satellite System (JPSS). Story by Kathryn Hansen.<\/em><\/p>\n\n\n\n\n\n\t\t\t\t\tDownloads\t\t\t\t<\/h2>\n<\/div>\n\n\n\t\t\t\t\t\t\t\t\t<\/div>\n<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJuly 14, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.96 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n<\/div>\n<\/div>\nReferences & Resources<\/h2>\n\nAirNow (2026, July 15) Wildfires<\/a>. Accessed July 15, 2026.<\/li>\nCBC (2026, July 15) Heat, wildfire smoke combine to create dangerous conditions across southwestern Ontario<\/a>. Accessed July 15, 2026.<\/li>\nMinistry of Natural Resources, Ontario (2026, July 14) Forest fires<\/a>. Accessed July 15, 2026.<\/li>\nNational Interagency Fire Center, Natural Resources Canada, and Servicio Meteorol\u00f3gico Nacional (2026, July 14) North American Seasonal Fire Assessment and Outlook<\/a>. Accessed July 15, 2026.<\/li>\nThe New York Times<\/em> (2026, July 15) Toronto Under an Orange Sky as Wildfire Smoke Pours Into the U.S. Northeast<\/a>. Accessed July 15, 2026.<\/li>\nReuters (2026, July 15) Canadian wildfire smoke chokes Toronto, threatens US cities<\/a>. Accessed July 15, 2026.<\/li>\n<\/ul>\n\n\n\n\n\nYou may also be interested in:<\/h2>\nStay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/div>\n<\/div>\n\n\n\n<\/div>\n<\/div>\n\n<\/span><\/div>\n<\/div>\n\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\nFighting Fire With Fire<\/div>\n<\/p>\n<\/a><\/p>\n\n 3 min read <\/div>\nIn fire-prone ecosystems in Australia\u2019s Northern Territory, prescribed burns are lit to minimize the severity of fires later in the\u2026<\/p>\n<\/path><\/path><\/g><\/g><\/svg>Article<\/span><\/div>\n<\/div>\n<\/div>\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\nFires Tear Through Nebraska Grasslands<\/div>\n<\/p>\n<\/a><\/p>\n\n 3 min read <\/div>\nDry, warm, and windy conditions across the U.S. Great Plains led to extreme fire activity in March 2026.<\/p>\n<\/path><\/path><\/g><\/g><\/svg>Article<\/span><\/div>\n<\/div>\n<\/div>\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\nCottonwood Fire Chars Utah<\/div>\n<\/p>\n<\/a><\/p>\n\n 5 min read <\/div>\nThe blaze burned more than 150 square miles and swept through parts of a ski resort.<\/p>\n<\/path><\/path><\/g><\/g><\/svg>Article<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n1<\/span><\/span>\n\n2<\/span><\/a>\n\n3<\/span><\/a>\n\n4<\/span><\/a>\nNext<\/a>\n<\/nav>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n\nKeep Exploring<\/div>\nDiscover More from NASA Earth Science<\/h2>\n<\/div>\n<\/div>\n\n\t\t\t\t\t<\/p>\n\n\n\n\n\t\t\t\t\t\t\t\tSubscribe to Earth Observatory Newsletters<\/span>\n\t\t\t\t\t\t\t\t<\/circle><\/path><\/svg>\n\t\t\t\t\t\t\t<\/h3>\nSubscribe to the Earth Observatory and get the Earth in your inbox.<\/p>\n<\/div>\n<\/div>\n<\/figure>\n<\/div>\n<\/a>
This NOAA-21<\/a>\u00a0image, acquired on the afternoon of July 14, 2026, shows smoke billowing from the Ontario fires. Winds carried the smoke primarily southeast over much of the southern part of the province, as well as parts of Quebec and the U.S. Midwest and Northeast, tinting the sky shades of gray and yellow and the Sun orange in many areas.<\/p>\nThe smoke\u2019s impact on air quality varied, depending largely on altitude. In areas where smoke was high in the atmosphere, air quality impacts were negligible; where it drifted closer to the ground, conditions worsened. Air quality in Toronto, for instance, reached unhealthy levels<\/a>, according to AirNow<\/a>. People in the southern parts of the province were also grappling with a heat wave, compounding the health risks.<\/p>\nMuch of the smoke came from fires in Northwestern Ontario, where eight blazes<\/a> saw significant growth on July 13 and 14. The fires prompted officials to issue evacuation orders for several communities in this part of the province, according to news reports<\/a>. <\/p>\nAs of July 14, fires across Canada have burned 1.9 million hectares (4.7 million acres) since the start of the year\u2014still well below the season totals from the extreme fire years of 2023 and 2025<\/a>. How the rest of the season plays out remains to be seen. A seasonal fire outlook<\/a>\u2014compiled by wildland fire experts from the U.S., Canada, and Mexico\u2014shows where fire conditions are more or less likely through July, August, and September.<\/p>\n<\/div>\nNASA Earth Observatory image by Lauren Dauphin, using VIIRS data from NASA EOSDIS LANCE , GIBS\/Worldview , and the Joint Polar Satellite System (JPSS). Story by Kathryn Hansen.<\/em><\/p>\n\n\n\n\n\n\t\t\t\t\tDownloads\t\t\t\t<\/h2>\n<\/div>\n\n\n\t\t\t\t\t\t\t\t\t<\/div>\n<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJuly 14, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.96 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n<\/div>\n<\/div>\nReferences & Resources<\/h2>\n\nAirNow (2026, July 15) Wildfires<\/a>. Accessed July 15, 2026.<\/li>\nCBC (2026, July 15) Heat, wildfire smoke combine to create dangerous conditions across southwestern Ontario<\/a>. Accessed July 15, 2026.<\/li>\nMinistry of Natural Resources, Ontario (2026, July 14) Forest fires<\/a>. Accessed July 15, 2026.<\/li>\nNational Interagency Fire Center, Natural Resources Canada, and Servicio Meteorol\u00f3gico Nacional (2026, July 14) North American Seasonal Fire Assessment and Outlook<\/a>. Accessed July 15, 2026.<\/li>\nThe New York Times<\/em> (2026, July 15) Toronto Under an Orange Sky as Wildfire Smoke Pours Into the U.S. Northeast<\/a>. Accessed July 15, 2026.<\/li>\nReuters (2026, July 15) Canadian wildfire smoke chokes Toronto, threatens US cities<\/a>. Accessed July 15, 2026.<\/li>\n<\/ul>\n\n\n\n\n\nYou may also be interested in:<\/h2>\nStay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/div>\n<\/div>\n\n\n\n<\/div>\n<\/div>\n\n<\/span><\/div>\n<\/div>\n\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\nFighting Fire With Fire<\/div>\n<\/p>\n<\/a><\/p>\n\n 3 min read <\/div>\nIn fire-prone ecosystems in Australia\u2019s Northern Territory, prescribed burns are lit to minimize the severity of fires later in the\u2026<\/p>\n<\/path><\/path><\/g><\/g><\/svg>Article<\/span><\/div>\n<\/div>\n<\/div>\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\nFires Tear Through Nebraska Grasslands<\/div>\n<\/p>\n<\/a><\/p>\n\n 3 min read <\/div>\nDry, warm, and windy conditions across the U.S. Great Plains led to extreme fire activity in March 2026.<\/p>\n<\/path><\/path><\/g><\/g><\/svg>Article<\/span><\/div>\n<\/div>\n<\/div>\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\nCottonwood Fire Chars Utah<\/div>\n<\/p>\n<\/a><\/p>\n\n 5 min read <\/div>\nThe blaze burned more than 150 square miles and swept through parts of a ski resort.<\/p>\n<\/path><\/path><\/g><\/g><\/svg>Article<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n1<\/span><\/span>\n\n2<\/span><\/a>\n\n3<\/span><\/a>\n\n4<\/span><\/a>\nNext<\/a>\n<\/nav>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n\nKeep Exploring<\/div>\nDiscover More from NASA Earth Science<\/h2>\n<\/div>\n<\/div>\n\n\t\t\t\t\t<\/p>\n\n\n\n\n\t\t\t\t\t\t\t\tSubscribe to Earth Observatory Newsletters<\/span>\n\t\t\t\t\t\t\t\t<\/circle><\/path><\/svg>\n\t\t\t\t\t\t\t<\/h3>\nSubscribe to the Earth Observatory and get the Earth in your inbox.<\/p>\n<\/div>\n<\/div>\n<\/figure>\n<\/div>\n<\/a>
The smoke\u2019s impact on air quality varied, depending largely on altitude. In areas where smoke was high in the atmosphere, air quality impacts were negligible; where it drifted closer to the ground, conditions worsened. Air quality in Toronto, for instance, reached unhealthy levels<\/a>, according to AirNow<\/a>. People in the southern parts of the province were also grappling with a heat wave, compounding the health risks.<\/p>\nMuch of the smoke came from fires in Northwestern Ontario, where eight blazes<\/a> saw significant growth on July 13 and 14. The fires prompted officials to issue evacuation orders for several communities in this part of the province, according to news reports<\/a>. <\/p>\nAs of July 14, fires across Canada have burned 1.9 million hectares (4.7 million acres) since the start of the year\u2014still well below the season totals from the extreme fire years of 2023 and 2025<\/a>. How the rest of the season plays out remains to be seen. A seasonal fire outlook<\/a>\u2014compiled by wildland fire experts from the U.S., Canada, and Mexico\u2014shows where fire conditions are more or less likely through July, August, and September.<\/p>\n<\/div>\nNASA Earth Observatory image by Lauren Dauphin, using VIIRS data from NASA EOSDIS LANCE , GIBS\/Worldview , and the Joint Polar Satellite System (JPSS). Story by Kathryn Hansen.<\/em><\/p>\n\n\n\n\n\n\t\t\t\t\tDownloads\t\t\t\t<\/h2>\n<\/div>\n\n\n\t\t\t\t\t\t\t\t\t<\/div>\n<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJuly 14, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.96 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n<\/div>\n<\/div>\nReferences & Resources<\/h2>\n\nAirNow (2026, July 15) Wildfires<\/a>. Accessed July 15, 2026.<\/li>\nCBC (2026, July 15) Heat, wildfire smoke combine to create dangerous conditions across southwestern Ontario<\/a>. Accessed July 15, 2026.<\/li>\nMinistry of Natural Resources, Ontario (2026, July 14) Forest fires<\/a>. Accessed July 15, 2026.<\/li>\nNational Interagency Fire Center, Natural Resources Canada, and Servicio Meteorol\u00f3gico Nacional (2026, July 14) North American Seasonal Fire Assessment and Outlook<\/a>. Accessed July 15, 2026.<\/li>\nThe New York Times<\/em> (2026, July 15) Toronto Under an Orange Sky as Wildfire Smoke Pours Into the U.S. Northeast<\/a>. Accessed July 15, 2026.<\/li>\nReuters (2026, July 15) Canadian wildfire smoke chokes Toronto, threatens US cities<\/a>. Accessed July 15, 2026.<\/li>\n<\/ul>\n\n\n\n\n\nYou may also be interested in:<\/h2>\nStay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/div>\n<\/div>\n\n\n\n<\/div>\n<\/div>\n\n<\/span><\/div>\n<\/div>\n\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\nFighting Fire With Fire<\/div>\n<\/p>\n<\/a><\/p>\n\n 3 min read <\/div>\nIn fire-prone ecosystems in Australia\u2019s Northern Territory, prescribed burns are lit to minimize the severity of fires later in the\u2026<\/p>\n<\/path><\/path><\/g><\/g><\/svg>Article<\/span><\/div>\n<\/div>\n<\/div>\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\nFires Tear Through Nebraska Grasslands<\/div>\n<\/p>\n<\/a><\/p>\n\n 3 min read <\/div>\nDry, warm, and windy conditions across the U.S. Great Plains led to extreme fire activity in March 2026.<\/p>\n<\/path><\/path><\/g><\/g><\/svg>Article<\/span><\/div>\n<\/div>\n<\/div>\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\nCottonwood Fire Chars Utah<\/div>\n<\/p>\n<\/a><\/p>\n\n 5 min read <\/div>\nThe blaze burned more than 150 square miles and swept through parts of a ski resort.<\/p>\n<\/path><\/path><\/g><\/g><\/svg>Article<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n1<\/span><\/span>\n\n2<\/span><\/a>\n\n3<\/span><\/a>\n\n4<\/span><\/a>\nNext<\/a>\n<\/nav>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n\nKeep Exploring<\/div>\nDiscover More from NASA Earth Science<\/h2>\n<\/div>\n<\/div>\n\n\t\t\t\t\t<\/p>\n\n\n\n\n\t\t\t\t\t\t\t\tSubscribe to Earth Observatory Newsletters<\/span>\n\t\t\t\t\t\t\t\t<\/circle><\/path><\/svg>\n\t\t\t\t\t\t\t<\/h3>\nSubscribe to the Earth Observatory and get the Earth in your inbox.<\/p>\n<\/div>\n<\/div>\n<\/figure>\n<\/div>\n<\/a>
Much of the smoke came from fires in Northwestern Ontario, where eight blazes<\/a> saw significant growth on July 13 and 14. The fires prompted officials to issue evacuation orders for several communities in this part of the province, according to news reports<\/a>. <\/p>\nAs of July 14, fires across Canada have burned 1.9 million hectares (4.7 million acres) since the start of the year\u2014still well below the season totals from the extreme fire years of 2023 and 2025<\/a>. How the rest of the season plays out remains to be seen. A seasonal fire outlook<\/a>\u2014compiled by wildland fire experts from the U.S., Canada, and Mexico\u2014shows where fire conditions are more or less likely through July, August, and September.<\/p>\n<\/div>\nNASA Earth Observatory image by Lauren Dauphin, using VIIRS data from NASA EOSDIS LANCE , GIBS\/Worldview , and the Joint Polar Satellite System (JPSS). Story by Kathryn Hansen.<\/em><\/p>\n\n\n\n\n\n\t\t\t\t\tDownloads\t\t\t\t<\/h2>\n<\/div>\n\n\n\t\t\t\t\t\t\t\t\t<\/div>\n<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJuly 14, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.96 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n<\/div>\n<\/div>\nReferences & Resources<\/h2>\n\nAirNow (2026, July 15) Wildfires<\/a>. Accessed July 15, 2026.<\/li>\nCBC (2026, July 15) Heat, wildfire smoke combine to create dangerous conditions across southwestern Ontario<\/a>. Accessed July 15, 2026.<\/li>\nMinistry of Natural Resources, Ontario (2026, July 14) Forest fires<\/a>. Accessed July 15, 2026.<\/li>\nNational Interagency Fire Center, Natural Resources Canada, and Servicio Meteorol\u00f3gico Nacional (2026, July 14) North American Seasonal Fire Assessment and Outlook<\/a>. Accessed July 15, 2026.<\/li>\nThe New York Times<\/em> (2026, July 15) Toronto Under an Orange Sky as Wildfire Smoke Pours Into the U.S. Northeast<\/a>. Accessed July 15, 2026.<\/li>\nReuters (2026, July 15) Canadian wildfire smoke chokes Toronto, threatens US cities<\/a>. Accessed July 15, 2026.<\/li>\n<\/ul>\n\n\n\n\n\nYou may also be interested in:<\/h2>\nStay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/div>\n<\/div>\n\n\n\n<\/div>\n<\/div>\n\n<\/span><\/div>\n<\/div>\n\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\nFighting Fire With Fire<\/div>\n<\/p>\n<\/a><\/p>\n\n 3 min read <\/div>\nIn fire-prone ecosystems in Australia\u2019s Northern Territory, prescribed burns are lit to minimize the severity of fires later in the\u2026<\/p>\n<\/path><\/path><\/g><\/g><\/svg>Article<\/span><\/div>\n<\/div>\n<\/div>\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\nFires Tear Through Nebraska Grasslands<\/div>\n<\/p>\n<\/a><\/p>\n\n 3 min read <\/div>\nDry, warm, and windy conditions across the U.S. Great Plains led to extreme fire activity in March 2026.<\/p>\n<\/path><\/path><\/g><\/g><\/svg>Article<\/span><\/div>\n<\/div>\n<\/div>\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\nCottonwood Fire Chars Utah<\/div>\n<\/p>\n<\/a><\/p>\n\n 5 min read <\/div>\nThe blaze burned more than 150 square miles and swept through parts of a ski resort.<\/p>\n<\/path><\/path><\/g><\/g><\/svg>Article<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n1<\/span><\/span>\n\n2<\/span><\/a>\n\n3<\/span><\/a>\n\n4<\/span><\/a>\nNext<\/a>\n<\/nav>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n\nKeep Exploring<\/div>\nDiscover More from NASA Earth Science<\/h2>\n<\/div>\n<\/div>\n\n\t\t\t\t\t<\/p>\n\n\n\n\n\t\t\t\t\t\t\t\tSubscribe to Earth Observatory Newsletters<\/span>\n\t\t\t\t\t\t\t\t<\/circle><\/path><\/svg>\n\t\t\t\t\t\t\t<\/h3>\nSubscribe to the Earth Observatory and get the Earth in your inbox.<\/p>\n<\/div>\n<\/div>\n<\/figure>\n<\/div>\n<\/a>
As of July 14, fires across Canada have burned 1.9 million hectares (4.7 million acres) since the start of the year\u2014still well below the season totals from the extreme fire years of 2023 and 2025<\/a>. How the rest of the season plays out remains to be seen. A seasonal fire outlook<\/a>\u2014compiled by wildland fire experts from the U.S., Canada, and Mexico\u2014shows where fire conditions are more or less likely through July, August, and September.<\/p>\n<\/div>\nNASA Earth Observatory image by Lauren Dauphin, using VIIRS data from NASA EOSDIS LANCE , GIBS\/Worldview , and the Joint Polar Satellite System (JPSS). Story by Kathryn Hansen.<\/em><\/p>\n\n\n\n\n\n\t\t\t\t\tDownloads\t\t\t\t<\/h2>\n<\/div>\n\n\n\t\t\t\t\t\t\t\t\t<\/div>\n<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJuly 14, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.96 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n<\/div>\n<\/div>\nReferences & Resources<\/h2>\n\nAirNow (2026, July 15) Wildfires<\/a>. Accessed July 15, 2026.<\/li>\nCBC (2026, July 15) Heat, wildfire smoke combine to create dangerous conditions across southwestern Ontario<\/a>. Accessed July 15, 2026.<\/li>\nMinistry of Natural Resources, Ontario (2026, July 14) Forest fires<\/a>. Accessed July 15, 2026.<\/li>\nNational Interagency Fire Center, Natural Resources Canada, and Servicio Meteorol\u00f3gico Nacional (2026, July 14) North American Seasonal Fire Assessment and Outlook<\/a>. Accessed July 15, 2026.<\/li>\nThe New York Times<\/em> (2026, July 15) Toronto Under an Orange Sky as Wildfire Smoke Pours Into the U.S. Northeast<\/a>. Accessed July 15, 2026.<\/li>\nReuters (2026, July 15) Canadian wildfire smoke chokes Toronto, threatens US cities<\/a>. Accessed July 15, 2026.<\/li>\n<\/ul>\n\n\n\n\n\nYou may also be interested in:<\/h2>\nStay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/div>\n<\/div>\n\n\n\n<\/div>\n<\/div>\n\n<\/span><\/div>\n<\/div>\n\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\nFighting Fire With Fire<\/div>\n<\/p>\n<\/a><\/p>\n\n 3 min read <\/div>\nIn fire-prone ecosystems in Australia\u2019s Northern Territory, prescribed burns are lit to minimize the severity of fires later in the\u2026<\/p>\n<\/path><\/path><\/g><\/g><\/svg>Article<\/span><\/div>\n<\/div>\n<\/div>\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\nFires Tear Through Nebraska Grasslands<\/div>\n<\/p>\n<\/a><\/p>\n\n 3 min read <\/div>\nDry, warm, and windy conditions across the U.S. Great Plains led to extreme fire activity in March 2026.<\/p>\n<\/path><\/path><\/g><\/g><\/svg>Article<\/span><\/div>\n<\/div>\n<\/div>\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\nCottonwood Fire Chars Utah<\/div>\n<\/p>\n<\/a><\/p>\n\n 5 min read <\/div>\nThe blaze burned more than 150 square miles and swept through parts of a ski resort.<\/p>\n<\/path><\/path><\/g><\/g><\/svg>Article<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n1<\/span><\/span>\n\n2<\/span><\/a>\n\n3<\/span><\/a>\n\n4<\/span><\/a>\nNext<\/a>\n<\/nav>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n\nKeep Exploring<\/div>\nDiscover More from NASA Earth Science<\/h2>\n<\/div>\n<\/div>\n\n\t\t\t\t\t<\/p>\n\n\n\n\n\t\t\t\t\t\t\t\tSubscribe to Earth Observatory Newsletters<\/span>\n\t\t\t\t\t\t\t\t<\/circle><\/path><\/svg>\n\t\t\t\t\t\t\t<\/h3>\nSubscribe to the Earth Observatory and get the Earth in your inbox.<\/p>\n<\/div>\n<\/div>\n<\/figure>\n<\/div>\n<\/a>
NASA Earth Observatory image by Lauren Dauphin, using VIIRS data from NASA EOSDIS LANCE , GIBS\/Worldview , and the Joint Polar Satellite System (JPSS). Story by Kathryn Hansen.<\/em><\/p>\n\n\n\n\n\n\t\t\t\t\tDownloads\t\t\t\t<\/h2>\n<\/div>\n\n\n\t\t\t\t\t\t\t\t\t<\/div>\n<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJuly 14, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.96 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n<\/div>\n<\/div>\nReferences & Resources<\/h2>\n\nAirNow (2026, July 15) Wildfires<\/a>. Accessed July 15, 2026.<\/li>\nCBC (2026, July 15) Heat, wildfire smoke combine to create dangerous conditions across southwestern Ontario<\/a>. Accessed July 15, 2026.<\/li>\nMinistry of Natural Resources, Ontario (2026, July 14) Forest fires<\/a>. Accessed July 15, 2026.<\/li>\nNational Interagency Fire Center, Natural Resources Canada, and Servicio Meteorol\u00f3gico Nacional (2026, July 14) North American Seasonal Fire Assessment and Outlook<\/a>. Accessed July 15, 2026.<\/li>\nThe New York Times<\/em> (2026, July 15) Toronto Under an Orange Sky as Wildfire Smoke Pours Into the U.S. Northeast<\/a>. Accessed July 15, 2026.<\/li>\nReuters (2026, July 15) Canadian wildfire smoke chokes Toronto, threatens US cities<\/a>. Accessed July 15, 2026.<\/li>\n<\/ul>\n\n\n\n\n\nYou may also be interested in:<\/h2>\nStay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/div>\n<\/div>\n\n\n\n<\/div>\n<\/div>\n\n<\/span><\/div>\n<\/div>\n\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\nFighting Fire With Fire<\/div>\n<\/p>\n<\/a><\/p>\n\n 3 min read <\/div>\nIn fire-prone ecosystems in Australia\u2019s Northern Territory, prescribed burns are lit to minimize the severity of fires later in the\u2026<\/p>\n<\/path><\/path><\/g><\/g><\/svg>Article<\/span><\/div>\n<\/div>\n<\/div>\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\nFires Tear Through Nebraska Grasslands<\/div>\n<\/p>\n<\/a><\/p>\n\n 3 min read <\/div>\nDry, warm, and windy conditions across the U.S. Great Plains led to extreme fire activity in March 2026.<\/p>\n<\/path><\/path><\/g><\/g><\/svg>Article<\/span><\/div>\n<\/div>\n<\/div>\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\nCottonwood Fire Chars Utah<\/div>\n<\/p>\n<\/a><\/p>\n\n 5 min read <\/div>\nThe blaze burned more than 150 square miles and swept through parts of a ski resort.<\/p>\n<\/path><\/path><\/g><\/g><\/svg>Article<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n1<\/span><\/span>\n\n2<\/span><\/a>\n\n3<\/span><\/a>\n\n4<\/span><\/a>\nNext<\/a>\n<\/nav>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n\nKeep Exploring<\/div>\nDiscover More from NASA Earth Science<\/h2>\n<\/div>\n<\/div>\n\n\t\t\t\t\t<\/p>\n\n\n\n\n\t\t\t\t\t\t\t\tSubscribe to Earth Observatory Newsletters<\/span>\n\t\t\t\t\t\t\t\t<\/circle><\/path><\/svg>\n\t\t\t\t\t\t\t<\/h3>\nSubscribe to the Earth Observatory and get the Earth in your inbox.<\/p>\n<\/div>\n<\/div>\n<\/figure>\n<\/div>\n<\/a>
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JPEG (3.96 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n
Stay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/div>\n<\/div>\n
<\/a><\/p>\n
In fire-prone ecosystems in Australia\u2019s Northern Territory, prescribed burns are lit to minimize the severity of fires later in the\u2026<\/p>\n
Dry, warm, and windy conditions across the U.S. Great Plains led to extreme fire activity in March 2026.<\/p>\n
The blaze burned more than 150 square miles and swept through parts of a ski resort.<\/p>\n
Subscribe to the Earth Observatory and get the Earth in your inbox.<\/p>\n<\/div>\n<\/div>\n<\/figure>\n<\/div>\n<\/a>
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