2026-09-28T05:00:00Z 通常 気象庁本庁 気象庁 2026-09-28T14:00:00+09:00 2026-09-28T15:00:00+09:00 2026-09-29T09:00:00+09:00 108 発表 1 降灰予報 1.1_0 　現在、十勝岳は噴火警戒レベル３（入山規制）です。十勝岳で噴火が発生した場合には、２８日２１時から２４時までは火口から北東方向に降灰が予想されます。 降灰予報（定時） 06 十勝岳 108 降灰 70 北海道旭川市 0120400 北海道北見市 0120800 北海道富良野市 0122900 北海道東神楽町 0145300 北海道当麻町 0145400 北海道上川町 0145700 北海道東川町 0145800 北海道美瑛町 0145900 北海道上富良野町 0146000 北海道南富良野町 0146200 北海道置戸町 0155000 北海道遠軽町 0155500 北海道上士幌町 0163300 北海道鹿追町 0163400 北海道新得町 0163500 北海道足寄町 0164700 小さな噴石の落下 75 北海道美瑛町 0145900 北海道上富良野町 0146000 北海道新得町 0163500 降灰予報（定時） 06 十勝岳 108 +4325.07+14241.18+2077/ 降灰 70 北海道旭川市 0120400 北海道北見市 0120800 北海道富良野市 0122900 北海道東神楽町 0145300 北海道当麻町 0145400 北海道上川町 0145700 北海道東川町 0145800 北海道美瑛町 0145900 北海道上富良野町 0146000 北海道南富良野町 0146200 北海道置戸町 0155000 北海道遠軽町 0155500 北海道上士幌町 0163300 北海道鹿追町 0163400 北海道新得町 0163500 北海道足寄町 0164700 小さな噴石の落下 75 北海道美瑛町 0145900 北海道上富良野町 0146000 北海道新得町 0163500 2026-09-28T15:00:00+09:00 2026-09-28T18:00:00+09:00 降灰 70 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+43.6212+142.9200/+43.6200+142.9214/+43.6173+142.9200/+43.6200+142.9169/+43.6212+142.9200/ 北 60 北海道旭川市 0120400 北海道東神楽町 0145300 北海道当麻町 0145400 北海道上川町 0145700 北海道東川町 0145800 北海道美瑛町 0145900 北海道上富良野町 0146000 北海道新得町 0163500 小さな噴石の落下 75 1 +43.4608+142.7000/+43.4600+142.7013/+43.4400+142.7142/+43.4258+142.7000/+43.4200+142.6988/+43.4012+142.6800/+43.4200+142.6612/+43.4400+142.6607/+43.4599+142.6800/+43.4600+142.6938/+43.4608+142.7000/ 北東 5 北海道美瑛町 0145900 北海道上富良野町 0146000 北海道新得町 0163500 2026-09-28T18:00:00+09:00 2026-09-28T21:00:00+09:00 降灰 70 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北東 60 北海道北見市 0120800 北海道上川町 0145700 北海道東川町 0145800 北海道美瑛町 0145900 北海道上富良野町 0146000 北海道遠軽町 0155500 北海道新得町 0163500 小さな噴石の落下 75 1 +43.4585+142.6800/+43.4594+142.7000/+43.4495+142.7200/+43.4400+142.7229/+43.4371+142.7200/+43.4230+142.7000/+43.4200+142.6988/+43.4012+142.6800/+43.4200+142.6612/+43.4400+142.6622/+43.4585+142.6800/ 北東 4 北海道美瑛町 0145900 北海道上富良野町 0146000 北海道新得町 0163500 2026-09-28T21:00:00+09:00 2026-09-29T00:00:00+09:00 降灰 70 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北東 70 北海道北見市 0120800 北海道上川町 0145700 北海道美瑛町 0145900 北海道上富良野町 0146000 北海道遠軽町 0155500 北海道新得町 0163500 小さな噴石の落下 75 1 +43.4579+142.6800/+43.4584+142.7000/+43.4560+142.7200/+43.4400+142.7316/+43.4324+142.7200/+43.4200+142.7165/+43.4035+142.7000/+43.4012+142.6800/+43.4200+142.6612/+43.4400+142.6621/+43.4579+142.6800/ 北東 4 北海道美瑛町 0145900 北海道上富良野町 0146000 北海道新得町 0163500 2026-09-29T00:00:00+09:00 2026-09-29T03:00:00+09:00 降灰 70 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北東 90 北海道北見市 0120800 北海道上川町 0145700 北海道美瑛町 0145900 北海道上富良野町 0146000 北海道置戸町 0155000 北海道遠軽町 0155500 北海道上士幌町 0163300 北海道新得町 0163500 小さな噴石の落下 75 1 +43.4575+142.6800/+43.4572+142.7000/+43.4564+142.7200/+43.4400+142.7389/+43.4293+142.7200/+43.4200+142.7179/+43.4021+142.7000/+43.4012+142.6800/+43.4200+142.6612/+43.4400+142.6625/+43.4575+142.6800/ 北東 4 北海道美瑛町 0145900 北海道上富良野町 0146000 北海道新得町 0163500 2026-09-29T03:00:00+09:00 2026-09-29T06:00:00+09:00 降灰 70 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東 50 北海道上川町 0145700 北海道美瑛町 0145900 北海道上富良野町 0146000 北海道置戸町 0155000 北海道上士幌町 0163300 北海道新得町 0163500 北海道足寄町 0164700 小さな噴石の落下 75 1 +43.4508+142.6800/+43.4557+142.7000/+43.4518+142.7200/+43.4417+142.7400/+43.4400+142.7424/+43.4200+142.7488/+43.4159+142.7400/+43.4066+142.7200/+43.4016+142.7000/+43.4012+142.6800/+43.4200+142.6612/+43.4400+142.6692/+43.4508+142.6800/ 東 6 北海道美瑛町 0145900 北海道上富良野町 0146000 北海道新得町 0163500 2026-09-29T06:00:00+09:00 2026-09-29T09:00:00+09:00 降灰 70 +43.4418+142.6600/+43.4582+142.6800/+43.4589+142.7000/+43.4591+142.7200/+43.4590+142.7400/+43.4586+142.7600/+43.4580+142.7800/+43.4567+142.8000/+43.4556+142.8200/+43.4555+142.8400/+43.4548+142.8600/+43.4533+142.8800/+43.4540+142.9000/+43.4523+142.9200/+43.4534+142.9400/+43.4545+142.9600/+43.4524+142.9800/+43.4530+143.0000/+43.4513+143.0200/+43.4465+143.0400/+43.4481+143.0600/+43.4436+143.0800/+43.4400+143.0885/+43.4378+143.1000/+43.4281+143.1200/+43.4282+143.1400/+43.4310+143.1600/+43.4353+143.1800/+43.4400+143.1965/+43.4412+143.2000/+43.4400+143.2138/+43.4395+143.2200/+43.4382+143.2400/+43.4355+143.2600/+43.4321+143.2800/+43.4269+143.3000/+43.4252+143.3200/+43.4233+143.3400/+43.4216+143.3600/+43.4203+143.3800/+43.4200+143.3848/+43.4188+143.4000/+43.4183+143.4200/+43.4177+143.4400/+43.4107+143.4600/+43.4000+143.4734/+43.3827+143.4600/+43.3800+143.4553/+43.3723+143.4400/+43.3712+143.4200/+43.3702+143.4000/+43.3652+143.3800/+43.3605+143.3600/+43.3600+143.3589/+43.3454+143.3400/+43.3400+143.3355/+43.3200+143.3284/+43.3016+143.3200/+43.3000+143.3192/+43.2941+143.3000/+43.2940+143.2800/+43.2877+143.2600/+43.2887+143.2400/+43.2912+143.2200/+43.2925+143.2000/+43.2833+143.1800/+43.2800+143.1679/+43.2781+143.1600/+43.2796+143.1400/+43.2764+143.1200/+43.2800+143.1090/+43.2813+143.1000/+43.2842+143.0800/+43.2871+143.0600/+43.2889+143.0400/+43.2916+143.0200/+43.3000+143.0117/+43.3074+143.0000/+43.3174+142.9800/+43.3200+142.9762/+43.3216+142.9600/+43.3233+142.9400/+43.3272+142.9200/+43.3398+142.9000/+43.3400+142.8996/+43.3407+142.8800/+43.3421+142.8600/+43.3455+142.8400/+43.3582+142.8200/+43.3600+142.8178/+43.3605+142.8000/+43.3610+142.7800/+43.3638+142.7600/+43.3800+142.7426/+43.3801+142.7400/+43.3802+142.7200/+43.3804+142.7000/+43.3870+142.6800/+43.4000+142.6670/+43.4032+142.6600/+43.4200+142.6432/+43.4400+142.6582/+43.4418+142.6600/ 東 60 北海道富良野市 0122900 北海道美瑛町 0145900 北海道上富良野町 0146000 北海道南富良野町 0146200 北海道上士幌町 0163300 北海道鹿追町 0163400 北海道新得町 0163500 北海道足寄町 0164700 小さな噴石の落下 75 1 +43.4388+142.6800/+43.4386+142.7000/+43.4336+142.7200/+43.4283+142.7400/+43.4200+142.7561/+43.4000+142.7573/+43.3948+142.7400/+43.3883+142.7200/+43.4000+142.7083/+43.4014+142.7000/+43.4012+142.6800/+43.4200+142.6612/+43.4388+142.6800/ 東 6 北海道美瑛町 0145900 北海道上富良野町 0146000 北海道新得町 0163500 　現在、十勝岳は噴火警戒レベル３（入山規制）です。十勝岳で噴火が発生した場合には、２８日２１時から２４時までは火口から北東方向に降灰が予想されます。 　２８日１５時から２９日９時までに噴火が発生した場合には、以下の方向・距離に降灰及び小さな噴石の落下が予想されます。 　 　時刻　　　　　　　　　　　　火口からの方向　降灰の距離　小さな噴石の距離 　２８日１５時から１８時まで　北　　　　　　　６０ｋｍ　　５ｋｍ　　　　　 　２８日１８時から２１時まで　北東　　　　　　６０ｋｍ　　４ｋｍ　　　　　 　２８日２１時から２４時まで　北東　　　　　　７０ｋｍ　　４ｋｍ　　　　　 　２９日００時から０３時まで　北東　　　　　　９０ｋｍ　　４ｋｍ　　　　　 　２９日０３時から０６時まで　東　　　　　　　５０ｋｍ　　６ｋｍ　　　　　 　２９日０６時から０９時まで　東　　　　　　　６０ｋｍ　　６ｋｍ　　　　　 　 　期間中に噴火が発生した場合には、以下の市町村に降灰が予想されます。 　北海道　：旭川市、東神楽町、当麻町、上川町、東川町、美瑛町、上富良野町、新得町、北見市、 　　　　　遠軽町、置戸町、上士幌町、足寄町、富良野市、南富良野町、鹿追町 　 　噴煙が火口縁上１０００ｍまで上がった場合の火山灰及び小さな噴石の落下範囲を示しています。 　噴火発生時、小さな噴石の落下が予想される範囲内では、屋内や頑丈な屋根の下などに移動してください。 　強風のため、遠方まで小さな噴石が流されるおそれがあります。