[{"noticeTitle":"ALASKA VOLCANO OBSERVATORY VOLCANO ACTIVITY NOTIFICATION","noticeHtml":"\u003Cb\u003EAVO\/USGS Volcanic Activity Notice\u003C\/b\u003E\n            \u003Cbr\/\u003E\u003Cbr\/\u003E\n            Volcano: \u003Cb\u003EKatmai\u003C\/b\u003E (VNUM #312170)\n            \u003Cbr\/\u003E\u003Cbr\/\u003E\n            Current Volcano Alert Level: NORMAL\u003Cbr\/\u003ECurrent Aviation Color Code: GREEN\u003Cbr\/\u003E\u003Cbr\/\u003E\n            \u003Cb\u003EIssued:\u003C\/b\u003E Friday, July 24, 2026, 4:19 PM AKDT\n            \u003Cbr\/\u003E\n            \u003Cb\u003ESource:\u003C\/b\u003E Alaska Volcano Observatory\n            \u003Cbr\/\u003E\n            \u003Cb\u003ENotice Number:\u003C\/b\u003E 2026\/A151\n            \u003Cbr\/\u003E\n            \u003Cb\u003ELocation:\u003C\/b\u003E N 58 deg 16 min W 154 deg 57 min\n            \u003Cbr\/\u003E\n            \u003Cb\u003EElevation:\u003C\/b\u003E 6716 ft (2047 m)\n            \u003Cbr\/\u003E\n            \u003Cb\u003EArea:\u003C\/b\u003E Alaska Peninsula \n            \u003Cbr\/\u003E\u003Cbr\/\u003E\n            \u003Cb\u003ESummary:\u003C\/b\u003E \u003Cspan name=\u0022synopsis\u0022\u003EResuspended ash observed from 1912 eruption. Aviation color code and alert level remain at GREEN\/NORMAL.\u003C\/span\u003E\n            \u003Cbr\/\u003E\u003Cbr\/\u003E\n            \u003Cb\u003EVolcanic Activity:\u003C\/b\u003E \u003Cspan name=\u0022summary\u0022\u003E\u003Cp\u003EStrong northwesterly winds in the vicinity of Katmai and the Valley of Ten Thousand Smokes have picked up loose volcanic ash erupted during the 1912 Novarupta-Katmai eruption and are carrying it to the southeast. The National Weather Service has issued a SIGMET for this low-level event and suggests that the maximum cloud height is 6,000 ft (1.8 km) above sea level.\u003C\/p\u003E\u003Cp\u003EThis phenomenon is not the result of recent volcanic activity and occurs during times of high winds and dry snow-free conditions in the Katmai area and other young volcanic areas of Alaska. No eruption is in progress. All of the volcanoes of the Katmai area (Griggs, Katmai, Novarupta, Mageik, Martin, Snowy and Trident) remain at Aviation Color Code GREEN and Alert Level NORMAL. Resuspended volcanic ash should be considered hazardous and could be damaging to aircraft and health.\u003C\/p\u003E\u003Cp\u003EFor more information on volcanic ash and human health, visit the following website: \u003Ca href=\u0022http:\/\/volcanoes.usgs.gov\/ash\/\u0022\u003Ehttp:\/\/volcanoes.usgs.gov\/ash\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EOfficial warnings about these ash resuspension events are issued by the National Weather Service: \u003Ca href=\u0022https:\/\/www.weather.gov\/afc\/\u0022\u003Ehttps:\/\/www.weather.gov\/afc\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EForecasts of airborne ash hazard to aircraft: https:\/\/www.weather.gov\/aawu\/. Volcanic Ash Advisories: \u003Ca href=\u0022https:\/\/www.weather.gov\/vaac\/\u0022\u003Ehttps:\/\/www.weather.gov\/vaac\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EForecasts of ashfall: \u003Ca href=\u0022http:\/\/www.weather.gov\/afc\u0022\u003Ehttp:\/\/www.weather.gov\/afc\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EAir quality hazards and guidance from Alaska Department of Environmental Conservation, Division of Air Quality: \u003Ca href=\u0022http:\/\/dec.alaska.gov\/Applications\/Air\/airtoolsweb\/Advisories\/Index\u0022\u003Ehttp:\/\/dec.alaska.gov\/Applications\/Air\/airtoolsweb\/Advisories\/Index\u003C\/a\u003E\u003C\/p\u003E\u003C\/span\u003E\n            \u003Cbr\/\u003E\u003Cbr\/\u003E\n            \u003Cb\u003EContacts:\u003C\/b\u003E \u003Cp\u003EMatt Haney, Scientist-in-Charge, USGS mhaney@usgs.gov (907) 786-7497\u003C\/p\u003E\u003Cp\u003EDavid Fee, Coordinating Scientist, UAFGI dfee1@alaska.edu (907) 378-5460\u003C\/p\u003E\u003Cbr\/\u003E\u003Cbr\/\u003E\u003Cp\u003EContact AVO: \u003Ca href=\u0022https:\/\/avo.alaska.edu\/contact\u0022\u003Ehttps:\/\/avo.alaska.edu\/contact\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EThe Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.\u003C\/p\u003E","sentUtc":"2026-07-25","obs":"avo","noticeId":"DOI-USGS-AVO-2026-03-06T00:26:58+00:00","noticeUrl":"https:\/\/volcanoes.usgs.gov\/hans2\/view\/notice\/DOI-USGS-AVO-2026-03-06T00:26:58+00:00","noticeData":"https:\/\/volcanoes.usgs.gov\/vsc\/api\/hansApi\/notice\/DOI-USGS-AVO-2026-03-06T00:26:58+00:00","obsAlertLevel":"WATCH","obsColorCode":"ORANGE","noticeHighestAlertLevel":"NORMAL","noticeHighestColorCode":"GREEN","noticeSections":[{"sectionHtml":"\u003Cb\u003EAVO\/USGS Volcanic Activity Notice\u003C\/b\u003E\n            \u003Cbr\/\u003E\u003Cbr\/\u003E\n            Volcano: \u003Cb\u003EKatmai\u003C\/b\u003E (VNUM #312170)\n            \u003Cbr\/\u003E\u003Cbr\/\u003E\n            Current Volcano Alert Level: NORMAL\u003Cbr\/\u003ECurrent Aviation Color Code: GREEN\u003Cbr\/\u003E\u003Cbr\/\u003E\n            \u003Cb\u003EIssued:\u003C\/b\u003E Friday, July 24, 2026, 4:19 PM AKDT\n            \u003Cbr\/\u003E\n            \u003Cb\u003ESource:\u003C\/b\u003E Alaska Volcano Observatory\n            \u003Cbr\/\u003E\n            \u003Cb\u003ENotice Number:\u003C\/b\u003E 2026\/A151\n            \u003Cbr\/\u003E\n            \u003Cb\u003ELocation:\u003C\/b\u003E N 58 deg 16 min W 154 deg 57 min\n            \u003Cbr\/\u003E\n            \u003Cb\u003EElevation:\u003C\/b\u003E 6716 ft (2047 m)\n            \u003Cbr\/\u003E\n            \u003Cb\u003EArea:\u003C\/b\u003E Alaska Peninsula \n            \u003Cbr\/\u003E\u003Cbr\/\u003E\n            \u003Cb\u003ESummary:\u003C\/b\u003E \u003Cspan name=\u0022synopsis\u0022\u003EResuspended ash observed from 1912 eruption. Aviation color code and alert level remain at GREEN\/NORMAL.\u003C\/span\u003E\n            \u003Cbr\/\u003E\u003Cbr\/\u003E\n            \u003Cb\u003EVolcanic Activity:\u003C\/b\u003E \u003Cspan name=\u0022summary\u0022\u003E\u003Cp\u003EStrong northwesterly winds in the vicinity of Katmai and the Valley of Ten Thousand Smokes have picked up loose volcanic ash erupted during the 1912 Novarupta-Katmai eruption and are carrying it to the southeast. The National Weather Service has issued a SIGMET for this low-level event and suggests that the maximum cloud height is 6,000 ft (1.8 km) above sea level.\u003C\/p\u003E\u003Cp\u003EThis phenomenon is not the result of recent volcanic activity and occurs during times of high winds and dry snow-free conditions in the Katmai area and other young volcanic areas of Alaska. No eruption is in progress. All of the volcanoes of the Katmai area (Griggs, Katmai, Novarupta, Mageik, Martin, Snowy and Trident) remain at Aviation Color Code GREEN and Alert Level NORMAL. Resuspended volcanic ash should be considered hazardous and could be damaging to aircraft and health.\u003C\/p\u003E\u003Cp\u003EFor more information on volcanic ash and human health, visit the following website: \u003Ca href=\u0022http:\/\/volcanoes.usgs.gov\/ash\/\u0022\u003Ehttp:\/\/volcanoes.usgs.gov\/ash\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EOfficial warnings about these ash resuspension events are issued by the National Weather Service: \u003Ca href=\u0022https:\/\/www.weather.gov\/afc\/\u0022\u003Ehttps:\/\/www.weather.gov\/afc\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EForecasts of airborne ash hazard to aircraft: https:\/\/www.weather.gov\/aawu\/. Volcanic Ash Advisories: \u003Ca href=\u0022https:\/\/www.weather.gov\/vaac\/\u0022\u003Ehttps:\/\/www.weather.gov\/vaac\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EForecasts of ashfall: \u003Ca href=\u0022http:\/\/www.weather.gov\/afc\u0022\u003Ehttp:\/\/www.weather.gov\/afc\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EAir quality hazards and guidance from Alaska Department of Environmental Conservation, Division of Air Quality: \u003Ca href=\u0022http:\/\/dec.alaska.gov\/Applications\/Air\/airtoolsweb\/Advisories\/Index\u0022\u003Ehttp:\/\/dec.alaska.gov\/Applications\/Air\/airtoolsweb\/Advisories\/Index\u003C\/a\u003E\u003C\/p\u003E\u003C\/span\u003E\n            \u003Cbr\/\u003E\u003Cbr\/\u003E\n            \u003Cb\u003EContacts:\u003C\/b\u003E \u003Cp\u003EMatt Haney, Scientist-in-Charge, USGS mhaney@usgs.gov (907) 786-7497\u003C\/p\u003E\u003Cp\u003EDavid Fee, Coordinating Scientist, UAFGI dfee1@alaska.edu (907) 378-5460\u003C\/p\u003E\u003Cbr\/\u003E\u003Cbr\/\u003E\u003Cp\u003EContact AVO: \u003Ca href=\u0022https:\/\/avo.alaska.edu\/contact\u0022\u003Ehttps:\/\/avo.alaska.edu\/contact\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EThe Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.\u003C\/p\u003E","summary":"\u003Cp\u003EStrong northwesterly winds in the vicinity of Katmai and the Valley of Ten Thousand Smokes have picked up loose volcanic ash erupted during the 1912 Novarupta-Katmai eruption and are carrying it to the southeast. The National Weather Service has issued a SIGMET for this low-level event and suggests that the maximum cloud height is 6,000 ft (1.8 km) above sea level.\u003C\/p\u003E\u003Cp\u003EThis phenomenon is not the result of recent volcanic activity and occurs during times of high winds and dry snow-free conditions in the Katmai area and other young volcanic areas of Alaska. No eruption is in progress. All of the volcanoes of the Katmai area (Griggs, Katmai, Novarupta, Mageik, Martin, Snowy and Trident) remain at Aviation Color Code GREEN and Alert Level NORMAL. Resuspended volcanic ash should be considered hazardous and could be damaging to aircraft and health.\u003C\/p\u003E\u003Cp\u003EFor more information on volcanic ash and human health, visit the following website: \u003Ca href=\u0022http:\/\/volcanoes.usgs.gov\/ash\/\u0022\u003Ehttp:\/\/volcanoes.usgs.gov\/ash\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EOfficial warnings about these ash resuspension events are issued by the National Weather Service: \u003Ca href=\u0022https:\/\/www.weather.gov\/afc\/\u0022\u003Ehttps:\/\/www.weather.gov\/afc\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EForecasts of airborne ash hazard to aircraft: https:\/\/www.weather.gov\/aawu\/. Volcanic Ash Advisories: \u003Ca href=\u0022https:\/\/www.weather.gov\/vaac\/\u0022\u003Ehttps:\/\/www.weather.gov\/vaac\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EForecasts of ashfall: \u003Ca href=\u0022http:\/\/www.weather.gov\/afc\u0022\u003Ehttp:\/\/www.weather.gov\/afc\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EAir quality hazards and guidance from Alaska Department of Environmental Conservation, Division of Air Quality: \u003Ca href=\u0022http:\/\/dec.alaska.gov\/Applications\/Air\/airtoolsweb\/Advisories\/Index\u0022\u003Ehttp:\/\/dec.alaska.gov\/Applications\/Air\/airtoolsweb\/Advisories\/Index\u003C\/a\u003E\u003C\/p\u003E","synopsis":"AVO Katmai GREEN\/NORMAL - Resuspended ash observed from 1912 eruption. Aviation color code and alert level remain at GREEN\/NORMAL.","alertLevel":"NORMAL","colorCode":"GREEN","vName":"Katmai","vnum":"312170","lat":58.279,"lng":-154.9533,"vUrl":"https:\/\/avo.alaska.edu\/volcanoes\/volcinfo.php?volcname=Katmai","vImage":"https:\/\/avo.alaska.edu\/images\/dbimages\/display\/1107821287_75_3.jpg","region":"Alaska Peninsula","sectionId":"DOI-USGS-AVO-2026-03-06T00:26:58+00:00"},{"sectionHtml":"\u003Ch4\u003EVOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)\u003C\/h4\u003E\u003Cpre\u003EWMAK01 PAVO 250019   \nVONA\nDTG:                    20260725\/0019Z\nVOLCANO:                KATMAI 312170\nPSN:                    N5817 W15457\nAREA:                   ALASKA\nSOURCE ELEV:            6716FT AMSL\nNOTICE NR:              2026\/03\nCURRENT COLOUR CODE:    GREEN\nPREVIOUS COLOUR CODE:   GREEN\nSVO:                    ALASKA VOLCANO OBSERVATORY\nACT STS:                RE-SUSPENDED VA\nONSET:                  NIL\nDUR:                    NIL\nVA CLD HGT:             6000FT AMSL\nHGT SOURCE:             SIGMET\nMOV:                    SE\nCTC:                    AVO DUTY SCIENTIST TEL +1-907-786-7497\nRMK:                    NO ERUPTION. RESUSPENDED VA FROM GND LEVEL ONLY. SEE SIGMET FOR MORE INFO.\nNXT NOTICE:             A NEW VONA WILL BE ISSUED IF COND CHANGE SIGNIFICANTLY OR IF THE COLOR CODE CHANGES\nNNNN\u003C\/pre\u003E","summary":"\u003Cp\u003EStrong northwesterly winds in the vicinity of Katmai and the Valley of Ten Thousand Smokes have picked up loose volcanic ash erupted during the 1912 Novarupta-Katmai eruption and are carrying it to the southeast. The National Weather Service has issued a SIGMET for this low-level event and suggests that the maximum cloud height is 6,000 ft (1.8 km) above sea level.\u003C\/p\u003E\u003Cp\u003EThis phenomenon is not the result of recent volcanic activity and occurs during times of high winds and dry snow-free conditions in the Katmai area and other young volcanic areas of Alaska. No eruption is in progress. All of the volcanoes of the Katmai area (Griggs, Katmai, Novarupta, Mageik, Martin, Snowy and Trident) remain at Aviation Color Code GREEN and Alert Level NORMAL. Resuspended volcanic ash should be considered hazardous and could be damaging to aircraft and health.\u003C\/p\u003E\u003Cp\u003EFor more information on volcanic ash and human health, visit the following website: \u003Ca href=\u0022http:\/\/volcanoes.usgs.gov\/ash\/\u0022\u003Ehttp:\/\/volcanoes.usgs.gov\/ash\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EOfficial warnings about these ash resuspension events are issued by the National Weather Service: \u003Ca href=\u0022https:\/\/www.weather.gov\/afc\/\u0022\u003Ehttps:\/\/www.weather.gov\/afc\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EForecasts of airborne ash hazard to aircraft: https:\/\/www.weather.gov\/aawu\/. Volcanic Ash Advisories: \u003Ca href=\u0022https:\/\/www.weather.gov\/vaac\/\u0022\u003Ehttps:\/\/www.weather.gov\/vaac\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EForecasts of ashfall: \u003Ca href=\u0022http:\/\/www.weather.gov\/afc\u0022\u003Ehttp:\/\/www.weather.gov\/afc\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EAir quality hazards and guidance from Alaska Department of Environmental Conservation, Division of Air Quality: \u003Ca href=\u0022http:\/\/dec.alaska.gov\/Applications\/Air\/airtoolsweb\/Advisories\/Index\u0022\u003Ehttp:\/\/dec.alaska.gov\/Applications\/Air\/airtoolsweb\/Advisories\/Index\u003C\/a\u003E\u003C\/p\u003E","synopsis":"AVO Katmai GREEN\/NORMAL - Resuspended ash observed from 1912 eruption. Aviation color code and alert level remain at GREEN\/NORMAL.","alertLevel":"NORMAL","colorCode":"GREEN","vName":"Katmai","vnum":"312170","lat":58.279,"lng":-154.9533,"vUrl":"https:\/\/avo.alaska.edu\/volcanoes\/volcinfo.php?volcname=Katmai","vImage":"https:\/\/avo.alaska.edu\/images\/dbimages\/display\/1107821287_75_3.jpg","region":"Alaska Peninsula","sectionId":"DOI-USGS-AVO-2026-03-06T00:26:58+00:00"}]},{"noticeTitle":"ALASKA VOLCANO OBSERVATORY VOLCANO OBSERVATORY NOTICE FOR AVIATION","noticeHtml":"\u003Ch4\u003EVOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)\u003C\/h4\u003E\u003Cpre\u003EWMAK01 PAVO 250019   \nVONA\nDTG:                    20260725\/0019Z\nVOLCANO:                KATMAI 312170\nPSN:                    N5817 W15457\nAREA:                   ALASKA\nSOURCE ELEV:            6716FT AMSL\nNOTICE NR:              2026\/03\nCURRENT COLOUR CODE:    GREEN\nPREVIOUS COLOUR CODE:   GREEN\nSVO:                    ALASKA VOLCANO OBSERVATORY\nACT STS:                RE-SUSPENDED VA\nONSET:                  NIL\nDUR:                    NIL\nVA CLD HGT:             6000FT AMSL\nHGT SOURCE:             SIGMET\nMOV:                    SE\nCTC:                    AVO DUTY SCIENTIST TEL +1-907-786-7497\nRMK:                    NO ERUPTION. RESUSPENDED VA FROM GND LEVEL ONLY. SEE SIGMET FOR MORE INFO.\nNXT NOTICE:             A NEW VONA WILL BE ISSUED IF COND CHANGE SIGNIFICANTLY OR IF THE COLOR CODE CHANGES\nNNNN\u003C\/pre\u003E","sentUtc":"2026-07-25","obs":"avo","noticeId":"DOI-USGS-AVO-2026-03-06T00:26:58+00:00","noticeUrl":"https:\/\/volcanoes.usgs.gov\/hans2\/view\/notice\/DOI-USGS-AVO-2026-03-06T00:26:58+00:00","noticeData":"https:\/\/volcanoes.usgs.gov\/vsc\/api\/hansApi\/notice\/DOI-USGS-AVO-2026-03-06T00:26:58+00:00","obsAlertLevel":"WATCH","obsColorCode":"ORANGE","noticeHighestAlertLevel":"NORMAL","noticeHighestColorCode":"GREEN","noticeSections":[{"sectionHtml":"\u003Cb\u003EAVO\/USGS Volcanic Activity Notice\u003C\/b\u003E\n            \u003Cbr\/\u003E\u003Cbr\/\u003E\n            Volcano: \u003Cb\u003EKatmai\u003C\/b\u003E (VNUM #312170)\n            \u003Cbr\/\u003E\u003Cbr\/\u003E\n            Current Volcano Alert Level: NORMAL\u003Cbr\/\u003ECurrent Aviation Color Code: GREEN\u003Cbr\/\u003E\u003Cbr\/\u003E\n            \u003Cb\u003EIssued:\u003C\/b\u003E Friday, July 24, 2026, 4:19 PM AKDT\n            \u003Cbr\/\u003E\n            \u003Cb\u003ESource:\u003C\/b\u003E Alaska Volcano Observatory\n            \u003Cbr\/\u003E\n            \u003Cb\u003ENotice Number:\u003C\/b\u003E 2026\/A151\n            \u003Cbr\/\u003E\n            \u003Cb\u003ELocation:\u003C\/b\u003E N 58 deg 16 min W 154 deg 57 min\n            \u003Cbr\/\u003E\n            \u003Cb\u003EElevation:\u003C\/b\u003E 6716 ft (2047 m)\n            \u003Cbr\/\u003E\n            \u003Cb\u003EArea:\u003C\/b\u003E Alaska Peninsula \n            \u003Cbr\/\u003E\u003Cbr\/\u003E\n            \u003Cb\u003ESummary:\u003C\/b\u003E \u003Cspan name=\u0022synopsis\u0022\u003EResuspended ash observed from 1912 eruption. Aviation color code and alert level remain at GREEN\/NORMAL.\u003C\/span\u003E\n            \u003Cbr\/\u003E\u003Cbr\/\u003E\n            \u003Cb\u003EVolcanic Activity:\u003C\/b\u003E \u003Cspan name=\u0022summary\u0022\u003E\u003Cp\u003EStrong northwesterly winds in the vicinity of Katmai and the Valley of Ten Thousand Smokes have picked up loose volcanic ash erupted during the 1912 Novarupta-Katmai eruption and are carrying it to the southeast. The National Weather Service has issued a SIGMET for this low-level event and suggests that the maximum cloud height is 6,000 ft (1.8 km) above sea level.\u003C\/p\u003E\u003Cp\u003EThis phenomenon is not the result of recent volcanic activity and occurs during times of high winds and dry snow-free conditions in the Katmai area and other young volcanic areas of Alaska. No eruption is in progress. All of the volcanoes of the Katmai area (Griggs, Katmai, Novarupta, Mageik, Martin, Snowy and Trident) remain at Aviation Color Code GREEN and Alert Level NORMAL. Resuspended volcanic ash should be considered hazardous and could be damaging to aircraft and health.\u003C\/p\u003E\u003Cp\u003EFor more information on volcanic ash and human health, visit the following website: \u003Ca href=\u0022http:\/\/volcanoes.usgs.gov\/ash\/\u0022\u003Ehttp:\/\/volcanoes.usgs.gov\/ash\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EOfficial warnings about these ash resuspension events are issued by the National Weather Service: \u003Ca href=\u0022https:\/\/www.weather.gov\/afc\/\u0022\u003Ehttps:\/\/www.weather.gov\/afc\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EForecasts of airborne ash hazard to aircraft: https:\/\/www.weather.gov\/aawu\/. Volcanic Ash Advisories: \u003Ca href=\u0022https:\/\/www.weather.gov\/vaac\/\u0022\u003Ehttps:\/\/www.weather.gov\/vaac\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EForecasts of ashfall: \u003Ca href=\u0022http:\/\/www.weather.gov\/afc\u0022\u003Ehttp:\/\/www.weather.gov\/afc\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EAir quality hazards and guidance from Alaska Department of Environmental Conservation, Division of Air Quality: \u003Ca href=\u0022http:\/\/dec.alaska.gov\/Applications\/Air\/airtoolsweb\/Advisories\/Index\u0022\u003Ehttp:\/\/dec.alaska.gov\/Applications\/Air\/airtoolsweb\/Advisories\/Index\u003C\/a\u003E\u003C\/p\u003E\u003C\/span\u003E\n            \u003Cbr\/\u003E\u003Cbr\/\u003E\n            \u003Cb\u003EContacts:\u003C\/b\u003E \u003Cp\u003EMatt Haney, Scientist-in-Charge, USGS mhaney@usgs.gov (907) 786-7497\u003C\/p\u003E\u003Cp\u003EDavid Fee, Coordinating Scientist, UAFGI dfee1@alaska.edu (907) 378-5460\u003C\/p\u003E\u003Cbr\/\u003E\u003Cbr\/\u003E\u003Cp\u003EContact AVO: \u003Ca href=\u0022https:\/\/avo.alaska.edu\/contact\u0022\u003Ehttps:\/\/avo.alaska.edu\/contact\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EThe Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.\u003C\/p\u003E","summary":"\u003Cp\u003EStrong northwesterly winds in the vicinity of Katmai and the Valley of Ten Thousand Smokes have picked up loose volcanic ash erupted during the 1912 Novarupta-Katmai eruption and are carrying it to the southeast. The National Weather Service has issued a SIGMET for this low-level event and suggests that the maximum cloud height is 6,000 ft (1.8 km) above sea level.\u003C\/p\u003E\u003Cp\u003EThis phenomenon is not the result of recent volcanic activity and occurs during times of high winds and dry snow-free conditions in the Katmai area and other young volcanic areas of Alaska. No eruption is in progress. All of the volcanoes of the Katmai area (Griggs, Katmai, Novarupta, Mageik, Martin, Snowy and Trident) remain at Aviation Color Code GREEN and Alert Level NORMAL. Resuspended volcanic ash should be considered hazardous and could be damaging to aircraft and health.\u003C\/p\u003E\u003Cp\u003EFor more information on volcanic ash and human health, visit the following website: \u003Ca href=\u0022http:\/\/volcanoes.usgs.gov\/ash\/\u0022\u003Ehttp:\/\/volcanoes.usgs.gov\/ash\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EOfficial warnings about these ash resuspension events are issued by the National Weather Service: \u003Ca href=\u0022https:\/\/www.weather.gov\/afc\/\u0022\u003Ehttps:\/\/www.weather.gov\/afc\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EForecasts of airborne ash hazard to aircraft: https:\/\/www.weather.gov\/aawu\/. Volcanic Ash Advisories: \u003Ca href=\u0022https:\/\/www.weather.gov\/vaac\/\u0022\u003Ehttps:\/\/www.weather.gov\/vaac\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EForecasts of ashfall: \u003Ca href=\u0022http:\/\/www.weather.gov\/afc\u0022\u003Ehttp:\/\/www.weather.gov\/afc\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EAir quality hazards and guidance from Alaska Department of Environmental Conservation, Division of Air Quality: \u003Ca href=\u0022http:\/\/dec.alaska.gov\/Applications\/Air\/airtoolsweb\/Advisories\/Index\u0022\u003Ehttp:\/\/dec.alaska.gov\/Applications\/Air\/airtoolsweb\/Advisories\/Index\u003C\/a\u003E\u003C\/p\u003E","synopsis":"AVO Katmai GREEN\/NORMAL - Resuspended ash observed from 1912 eruption. Aviation color code and alert level remain at GREEN\/NORMAL.","alertLevel":"NORMAL","colorCode":"GREEN","vName":"Katmai","vnum":"312170","lat":58.279,"lng":-154.9533,"vUrl":"https:\/\/avo.alaska.edu\/volcanoes\/volcinfo.php?volcname=Katmai","vImage":"https:\/\/avo.alaska.edu\/images\/dbimages\/display\/1107821287_75_3.jpg","region":"Alaska Peninsula","sectionId":"DOI-USGS-AVO-2026-03-06T00:26:58+00:00"},{"sectionHtml":"\u003Ch4\u003EVOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)\u003C\/h4\u003E\u003Cpre\u003EWMAK01 PAVO 250019   \nVONA\nDTG:                    20260725\/0019Z\nVOLCANO:                KATMAI 312170\nPSN:                    N5817 W15457\nAREA:                   ALASKA\nSOURCE ELEV:            6716FT AMSL\nNOTICE NR:              2026\/03\nCURRENT COLOUR CODE:    GREEN\nPREVIOUS COLOUR CODE:   GREEN\nSVO:                    ALASKA VOLCANO OBSERVATORY\nACT STS:                RE-SUSPENDED VA\nONSET:                  NIL\nDUR:                    NIL\nVA CLD HGT:             6000FT AMSL\nHGT SOURCE:             SIGMET\nMOV:                    SE\nCTC:                    AVO DUTY SCIENTIST TEL +1-907-786-7497\nRMK:                    NO ERUPTION. RESUSPENDED VA FROM GND LEVEL ONLY. SEE SIGMET FOR MORE INFO.\nNXT NOTICE:             A NEW VONA WILL BE ISSUED IF COND CHANGE SIGNIFICANTLY OR IF THE COLOR CODE CHANGES\nNNNN\u003C\/pre\u003E","summary":"\u003Cp\u003EStrong northwesterly winds in the vicinity of Katmai and the Valley of Ten Thousand Smokes have picked up loose volcanic ash erupted during the 1912 Novarupta-Katmai eruption and are carrying it to the southeast. The National Weather Service has issued a SIGMET for this low-level event and suggests that the maximum cloud height is 6,000 ft (1.8 km) above sea level.\u003C\/p\u003E\u003Cp\u003EThis phenomenon is not the result of recent volcanic activity and occurs during times of high winds and dry snow-free conditions in the Katmai area and other young volcanic areas of Alaska. No eruption is in progress. All of the volcanoes of the Katmai area (Griggs, Katmai, Novarupta, Mageik, Martin, Snowy and Trident) remain at Aviation Color Code GREEN and Alert Level NORMAL. Resuspended volcanic ash should be considered hazardous and could be damaging to aircraft and health.\u003C\/p\u003E\u003Cp\u003EFor more information on volcanic ash and human health, visit the following website: \u003Ca href=\u0022http:\/\/volcanoes.usgs.gov\/ash\/\u0022\u003Ehttp:\/\/volcanoes.usgs.gov\/ash\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EOfficial warnings about these ash resuspension events are issued by the National Weather Service: \u003Ca href=\u0022https:\/\/www.weather.gov\/afc\/\u0022\u003Ehttps:\/\/www.weather.gov\/afc\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EForecasts of airborne ash hazard to aircraft: https:\/\/www.weather.gov\/aawu\/. Volcanic Ash Advisories: \u003Ca href=\u0022https:\/\/www.weather.gov\/vaac\/\u0022\u003Ehttps:\/\/www.weather.gov\/vaac\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EForecasts of ashfall: \u003Ca href=\u0022http:\/\/www.weather.gov\/afc\u0022\u003Ehttp:\/\/www.weather.gov\/afc\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EAir quality hazards and guidance from Alaska Department of Environmental Conservation, Division of Air Quality: \u003Ca href=\u0022http:\/\/dec.alaska.gov\/Applications\/Air\/airtoolsweb\/Advisories\/Index\u0022\u003Ehttp:\/\/dec.alaska.gov\/Applications\/Air\/airtoolsweb\/Advisories\/Index\u003C\/a\u003E\u003C\/p\u003E","synopsis":"AVO Katmai GREEN\/NORMAL - Resuspended ash observed from 1912 eruption. Aviation color code and alert level remain at GREEN\/NORMAL.","alertLevel":"NORMAL","colorCode":"GREEN","vName":"Katmai","vnum":"312170","lat":58.279,"lng":-154.9533,"vUrl":"https:\/\/avo.alaska.edu\/volcanoes\/volcinfo.php?volcname=Katmai","vImage":"https:\/\/avo.alaska.edu\/images\/dbimages\/display\/1107821287_75_3.jpg","region":"Alaska Peninsula","sectionId":"DOI-USGS-AVO-2026-03-06T00:26:58+00:00"}]}]