Pilot Index / Montana / Dec 19, 2020

Preliminary

Storms in Montana on Dec 19, 2020

63 published severe reports across Montana on Dec 19, 2020.

Updated Oct 28, 2026.

Coverage is partial. 473 source scopes are pending. Pending data is not a zero report count.

Hail reports: 0. Wind reports: 63. Tornado reports: 0.

The table and map show 40 of 63 reports.

TimeWhatSize or SpeedWhereDetails
Dec 19, 2020, 1:55 AM MSTWind59 mph2 SSW Big Timber
Record
  • Dec 19, 2020, 1:55 AM MST. Wind, 59 mph, 2 SSW Big Timber. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:bb09b3e1bb9a3841b605a00f5899ae11c5ecba91bc37f0fe374b23c11f2cd1ba.
Dec 19, 2020, 1:59 AM MSTWind70 mph11 SSW WHITLASH
Record
  • Dec 19, 2020, 1:59 AM MST. Wind, 70 mph, 11 SSW WHITLASH. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:5fc5767e39cc9e74fd8e553642024b980697ec3e7ca3e817d8688ab1dfa07677.
Dec 19, 2020, 2:00 AM MSTWind62 mph6 ENE Livingston
Record
  • Dec 19, 2020, 2:00 AM MST. Wind, 62 mph, 6 ENE Livingston. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:da902152deb041853eb21cd2ed9b0cf29f3f11ab12870fb3e00531c1ffb04b06.
Dec 19, 2020, 3:21 AM MSTWind87 mph8 SE EAST GLACIER PARK
Record
  • Dec 19, 2020, 3:21 AM MST. Wind, 87 mph, 8 SE EAST GLACIER PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:733c7971067639e05df2dd7028f2294826c9278d2b927cc0e9343c9876d33346.
Dec 19, 2020, 3:22 AM MSTWind71 mph1 ENE EAST GLACIER PARK
Record
  • Dec 19, 2020, 3:22 AM MST. Wind, 71 mph, 1 ENE EAST GLACIER PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:bdbf40b18d4b9d2db74aa422cd666f7f81dbbe0f47031354f42fac09b78309c3.
Dec 19, 2020, 3:40 AM MSTWind72 mph2 SE BROWNING
Record
  • Dec 19, 2020, 3:40 AM MST. Wind, 72 mph, 2 SE BROWNING. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:b031760de735d012fdddd4534d48777db2b6dd7710875d7f6b3d61f2ad3eb895.
Dec 19, 2020, 4:12 AM MSTWind64 mph17 NE Wilsall
Record
  • Dec 19, 2020, 4:12 AM MST. Wind, 64 mph, 17 NE Wilsall. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:a8ceaef8b4b785cc71bc6b58dc73a5c6c7b95f61fb9e052ce4c654fca06dbd70.
Dec 19, 2020, 4:22 AM MSTWind78 mph1 ENE EAST GLACIER PARK
Record
  • Dec 19, 2020, 4:22 AM MST. Wind, 78 mph, 1 ENE EAST GLACIER PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:192ba6f5e3e1324901b04a1dba44134621a267fc6d3d6cf34091ad5c99bbbd3b.
Dec 19, 2020, 4:25 AM MSTWind63 mph6 ENE Livingston
Record
  • Dec 19, 2020, 4:25 AM MST. Wind, 63 mph, 6 ENE Livingston. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:2ae481cc18da49eae21f540b008d676627e73d1a0f7e7c69c85c877f62b4e6a4.
Dec 19, 2020, 5:00 AM MSTWind68 mph14 WSW SAINT MARY
Record
  • Dec 19, 2020, 5:00 AM MST. Wind, 68 mph, 14 WSW SAINT MARY. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:71237fdcd9b13919f4889ba5a7afcb5d016fab7ca924f099343d7eb5eeca3904.
Dec 19, 2020, 5:00 AM MSTWind58 mph16 SE GALLATIN GATEWAY
Record
  • Dec 19, 2020, 5:00 AM MST. Wind, 58 mph, 16 SE GALLATIN GATEWAY. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:a99c93faf491e61396a81952c06dfd853013a7d6a9c67452a3ac01c1652b9235.
Dec 19, 2020, 5:12 AM MSTWind66 mph17 NE Wilsall
Record
  • Dec 19, 2020, 5:12 AM MST. Wind, 66 mph, 17 NE Wilsall. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:3bdce31ff99de452bfaf806d15311c37aa0bc6b784976e088bbe57b501098b91.
Dec 19, 2020, 5:34 AM MSTWind65 mph16 WSW BYNUM
Record
  • Dec 19, 2020, 5:34 AM MST. Wind, 65 mph, 16 WSW BYNUM. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:79fd5422326a62528ddf17016dcd3f27984fd28fb49004e44e03389f26637b80.
Dec 19, 2020, 5:44 AM MSTWind79 mph14 SW AUGUSTA
Record
  • Dec 19, 2020, 5:44 AM MST. Wind, 79 mph, 14 SW AUGUSTA. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:9c2ef465d6f6b40ed699066d664613709eeeee51b98c51eb68a119adbc100837.
Dec 19, 2020, 5:52 AM MSTWind65 mph7 ESE HILGER
Record
  • Dec 19, 2020, 5:52 AM MST. Wind, 65 mph, 7 ESE HILGER. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:f52b1cfb7e0091b3890c83cde65b4e2f70b36d1d6b2e4cef004fed7688c72445.
Dec 19, 2020, 5:54 AM MSTWind81 mph14 W BYNUM
Record
  • Dec 19, 2020, 5:54 AM MST. Wind, 81 mph, 14 W BYNUM. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:bf2dcc385d9b9004be84be079119e11af19043b8d1801b8948a44cf9b33e0458.
Dec 19, 2020, 6:03 AM MSTWind60 mph3 ENE Livingston
Record
  • Dec 19, 2020, 6:03 AM MST. Wind, 60 mph, 3 ENE Livingston. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:1f7b6e96404803438318bf13cf70ba013e562b0606a2830ef7e08aecf4b8e6dd.
Dec 19, 2020, 6:19 AM MSTWind63 mph6 ENE Livingston
Record
  • Dec 19, 2020, 6:19 AM MST. Wind, 63 mph, 6 ENE Livingston. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:861cde7098d2074e4b9376b049c19116bb027613785a4c5adc7082352f79bbab.
Dec 19, 2020, 6:44 AM MSTWind59 mph14 WNW RINGLING
Record
  • Dec 19, 2020, 6:44 AM MST. Wind, 59 mph, 14 WNW RINGLING. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:cee104648a39cee6abc5ed57aa729cd650a745cf5070aa15359429403d7b6786.
Dec 19, 2020, 6:53 AM MSTWind62 mph3 ENE Livingston
Record
  • Dec 19, 2020, 6:53 AM MST. Wind, 62 mph, 3 ENE Livingston. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:74bbfc5c0e834f391c200154b37bf8ec3f2d4c304656f87f98fa251bcfc6c640.
Dec 19, 2020, 6:55 AM MSTWind60 mph2 SSW Big Timber
Record
  • Dec 19, 2020, 6:55 AM MST. Wind, 60 mph, 2 SSW Big Timber. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:1a95fc5d0dd11bca0680eb1ddcba911e0a422d4124d286f6d1829e2b2e147e5e.
Dec 19, 2020, 7:04 AM MSTWind66 mph7 S BYNUM
Record
  • Dec 19, 2020, 7:04 AM MST. Wind, 66 mph, 7 S BYNUM. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:19ed38bc7c191895a550320f1f4c7d043547fade3a15b8b5eb5f79e391db7094.
Dec 19, 2020, 7:18 AM MSTWind64 mph17 S Fort Smith
Record
  • Dec 19, 2020, 7:18 AM MST. Wind, 64 mph, 17 S Fort Smith. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:b201169bb8091171c1b4a4cbd493390f3883d74736f0a04dd179483a5ba121fc.
Dec 19, 2020, 7:35 AM MSTWind58 mph13 SSW Greycliff
Record
  • Dec 19, 2020, 7:35 AM MST. Wind, 58 mph, 13 SSW Greycliff. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:1c016978338b87b6ff49b69ea785cef12ccaa0b11915bd65da906c6d6188bd18.
Dec 19, 2020, 8:00 AM MSTWind71 mph11 NNE BOZEMAN
Record
  • Dec 19, 2020, 8:00 AM MST. Wind, 71 mph, 11 NNE BOZEMAN. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:966c24e19e6a9503973a14a37881768d0c72f6b4e8467ce523f0a1e69955bbd0.
Dec 19, 2020, 8:10 AM MSTWind64 mph2 SSW Big Timber
Record
  • Dec 19, 2020, 8:10 AM MST. Wind, 64 mph, 2 SSW Big Timber. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:e853a79517269e172ab6d37bfe73a21a513b4f6c3951a3517d23b4cd1b703d72.
Dec 19, 2020, 8:18 AM MSTWind71 mph17 S Fort Smith
Record
  • Dec 19, 2020, 8:18 AM MST. Wind, 71 mph, 17 S Fort Smith. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:30ac67502361f32a6f6a6c89a66cef53e7da746997de8dbd17195f53ecbf6ba0.
Dec 19, 2020, 8:25 AM MSTWind70 mph2 SSW Big Timber
Record
  • Dec 19, 2020, 8:25 AM MST. Wind, 70 mph, 2 SSW Big Timber. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:e2dd7de380c65791af3680313dc4825f02e8c8407ffee404605137c89b5e6648.
Dec 19, 2020, 8:35 AM MSTWind64 mph13 SSW Greycliff
Record
  • Dec 19, 2020, 8:35 AM MST. Wind, 64 mph, 13 SSW Greycliff. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:d82acdd58b2cef7bd0e281e64df5534c7ad3aee99fe5bc8d96041df8930fcd84.
Dec 19, 2020, 8:40 AM MSTWind71 mph2 SSW Big Timber
Record
  • Dec 19, 2020, 8:40 AM MST. Wind, 71 mph, 2 SSW Big Timber. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:17fe0e6a43074990f671e0a065ddfedd4ff6df73385634295541069d238deb01.
Dec 19, 2020, 8:41 AM MSTWind62 mph13 S MARYSVILLE
Record
  • Dec 19, 2020, 8:41 AM MST. Wind, 62 mph, 13 S MARYSVILLE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:2fda841c59af35616e236e75badd31895cee231b39e3f4d35bd5b086fac7a18d.
Dec 19, 2020, 8:45 AM MSTWind58 mph4 W Harlowton
Record
  • Dec 19, 2020, 8:45 AM MST. Wind, 58 mph, 4 W Harlowton. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:f8fd77f750b39b8494c5ef15c199bce7ed5630e75519b932beba03b23a6def71.
Dec 19, 2020, 8:55 AM MSTWind63 mph2 SSW Big Timber
Record
  • Dec 19, 2020, 8:55 AM MST. Wind, 63 mph, 2 SSW Big Timber. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:e3562ebade404ccbc435a616c0773234ffb6b42c610d0455e4871ad1338b0097.
Dec 19, 2020, 8:56 AM MSTWind58 mph2 NW WINDHAM
Record
  • Dec 19, 2020, 8:56 AM MST. Wind, 58 mph, 2 NW WINDHAM. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:76c876d93f4738a9f92a94ff2186340f2b3b0b5b20507cb8e14d01494e47b253.
Dec 19, 2020, 9:00 AM MSTWind74 mph10 NNE BOZEMAN
Record
  • Dec 19, 2020, 9:00 AM MST. Wind, 74 mph, 10 NNE BOZEMAN. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:da0e243d36279d0b43b72931a203374eedf4bf7e5f3a63a7dc721e566f53edb0.
Dec 19, 2020, 9:02 AM MSTWind59 mph6 E GEYSER
Record
  • Dec 19, 2020, 9:02 AM MST. Wind, 59 mph, 6 E GEYSER. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:f7d31e143fade5601588cc2e76f2052cb9a98ec2f6e69778952edc72a3aa7037.
Dec 19, 2020, 9:10 AM MSTWind76 mph2 SSW Big Timber
Record
  • Dec 19, 2020, 9:10 AM MST. Wind, 76 mph, 2 SSW Big Timber. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:af2e40d534a6a222a82296788c8b635b4676d3aad1dd9126766cc1a33dde39c9.
Dec 19, 2020, 9:12 AM MSTWind60 mph17 NE Wilsall
Record
  • Dec 19, 2020, 9:12 AM MST. Wind, 60 mph, 17 NE Wilsall. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:28aba3f8400305f77a37f00f78c9b52466d76ca5ede605b12857febc7b90587a.
Dec 19, 2020, 9:18 AM MSTWind59 mph17 S Fort Smith
Record
  • Dec 19, 2020, 9:18 AM MST. Wind, 59 mph, 17 S Fort Smith. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:7512c563e5465c8a2392cd46bce9103b3d542064a0417f85e8cb30bcbeb898dc.
Dec 19, 2020, 9:21 AM MSTWind88 mph8 SE EAST GLACIER PARK
Record
  • Dec 19, 2020, 9:21 AM MST. Wind, 88 mph, 8 SE EAST GLACIER PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:5d15dc1b3c2d828cfaf1f2a197bae733848e26f7d25d84b21622be6880a2a05d.
How We Count

This page uses published ground reports from 2016-01-01 through 2026-10-29. Coverage is partial. 473 source scopes are pending. Pending data is not a zero report count.

Hail counts at 1.00 in or larger. Wind counts at 58 mph or stronger. State days also include tornado reports.

Reports use the local civil date and clock. City pages use the city clock. State pages use each report location clock.

Exact repeated observations are counted once. Nearby reports with different times, coordinates or sizes remain separate observations.

NCEI rows are verified against NCEI Storm Events. SPC and NWS local reports are preliminary.

Radar signatures and warning polygons are not ground reports and are not in these counts.

A missing report does not show that no storm occurred. These pages show city or state exposure, not damage at an address.

This free page covers the state. It does not check a street address.

Limits

This page is not a certified record.

This page shows weather exposure, not damage or cause.

This page is not an expert opinion and it is not a meteorologist review.

Verify these rows with official NOAA and NWS records.

VectorWX is not affiliated with or endorsed by NOAA or NWS.

Radar-estimated hail size comes from MRMS MESH or NCEI nx3hail. It is an estimate of hail aloft. It is not a measurement of hail on a roof.