Pilot Index / Montana / Oct 20, 2017

Preliminary

Storms in Montana on Oct 20, 2017

17 published severe reports across Montana on Oct 20, 2017.

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: 17. Tornado reports: 0.

The table and map show 17 of 17 reports.

TimeWhatSize or SpeedWhereDetails
Oct 20, 2017, 5:00 AM MDTWind58 mph11 NNE BOZEMAN
Record
  • Oct 20, 2017, 5:00 AM MDT. Wind, 58 mph, 11 NNE BOZEMAN. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:2305d2e041be14c8b997b54e0ff6810879b29791119eacf962961f5300cc1ff7.
Oct 20, 2017, 11:00 AM MDTWind59 mph6 WSW BIG SKY
Record
  • Oct 20, 2017, 11:00 AM MDT. Wind, 59 mph, 6 WSW BIG SKY. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:c15ed5ffda630cab0cd47d11688b7eb7ab8188a7a75b4cdad42493d4221d2bb1.
Oct 20, 2017, 12:08 PM MDTWind63 mph5 NE DILLON
Record
  • Oct 20, 2017, 12:08 PM MDT. Wind, 63 mph, 5 NE DILLON. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:2f1d408d089d2b075c82b113fe0799946be2aa639ede4d3be5a837700522f212.
Oct 20, 2017, 1:21 PM MDTWind58 mph6 ENE LIVINGSTON
Record
  • Oct 20, 2017, 1:21 PM MDT. Wind, 58 mph, 6 ENE LIVINGSTON. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:05601723bc97fbc2eaded6828c85126680548780a49164035b16244c66edfcb6.
Oct 20, 2017, 2:15 PM MDTWind60 mph6 ENE LIVINGSTON
Record
  • Oct 20, 2017, 2:15 PM MDT. Wind, 60 mph, 6 ENE LIVINGSTON. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:91bb461fff027947f3eb5d37eced5feac23c83f8f17e0688fd644fd62e767d65.
Oct 20, 2017, 4:20 PM MDTWind61 mph2 SSW BIG TIMBER
Record
  • Oct 20, 2017, 4:20 PM MDT. Wind, 61 mph, 2 SSW BIG TIMBER. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:7fc6331da7301bb5f7aff0b09395538fbd444ae4ef3a871aa545a887c181f6ec.
Oct 20, 2017, 4:35 PM MDTWind66 mph13 SSW GREYCLIFF
Record
  • Oct 20, 2017, 4:35 PM MDT. Wind, 66 mph, 13 SSW GREYCLIFF. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:0ba111d3b350d4c32cc198cdec62b75f98093f3efd9bea18722ce5a7b8f69309.
Oct 20, 2017, 5:07 PM MDTWind67 mph12 SE EMIGRANT
Record
  • Oct 20, 2017, 5:07 PM MDT. Wind, 67 mph, 12 SE EMIGRANT. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:4504b6c4b3cca8913adf954513fb8e575f24661b68be89c016d7fc66462f6ce1.
Oct 20, 2017, 5:55 PM MDTWind59 mph7 E COLUMBUS
Record
  • Oct 20, 2017, 5:55 PM MDT. Wind, 59 mph, 7 E COLUMBUS. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:16c90e5b112d3ea46d08df4ed166406ad530b85a55a4b2d0375496fbc2c8438d.
Oct 20, 2017, 6:06 PM MDTWind59 mph6 E COLUMBUS
Record
  • Oct 20, 2017, 6:06 PM MDT. Wind, 59 mph, 6 E COLUMBUS. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:513d6e0a6746cc3fa004bb40b07f688e50a0be4c94a6144c058094d6ea9ee392.
Oct 20, 2017, 6:13 PM MDTWind58 mph3 NW BILLINGS
Record
  • Oct 20, 2017, 6:13 PM MDT. Wind, 58 mph, 3 NW BILLINGS. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:1895153e23011295ed6523889d831d8c4f67f5a2e2fd0891446b7f5d9dbc8740.
Oct 20, 2017, 6:23 PM MDTWind63 mph10 E MOLT
Record
  • Oct 20, 2017, 6:23 PM MDT. Wind, 63 mph, 10 E MOLT. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:05a449e8d68faf18f2392da4dbc34418b80fb697e4337d18ca65e1c10068d146.
Oct 20, 2017, 7:18 PM MDTWind72 mph17 S FORT SMITH
Record
  • Oct 20, 2017, 7:18 PM MDT. Wind, 72 mph, 17 S FORT SMITH. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:5bb977ae9f996f567be364f4970b072b684186c3b2fd0fa3f6f3faa55f934855.
Oct 20, 2017, 7:29 PM MDTWind60 mph22 E WARREN
Record
  • Oct 20, 2017, 7:29 PM MDT. Wind, 60 mph, 22 E WARREN. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:dfb04b09aabe8c0bc168333f0a3b4c2c53aa3dbe2d4bfb4d35821ab391a41e95.
Oct 20, 2017, 8:09 PM MDTWind60 mph8 NW LINDSAY
Record
  • Oct 20, 2017, 8:09 PM MDT. Wind, 60 mph, 8 NW LINDSAY. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:e0c53e1d2cfd1e29b5c9cd76246074f916fc9253df438a9df7baccfb17ecfb4f.
Oct 20, 2017, 8:18 PM MDTWind58 mph13 S FORT BELKNAP
Record
  • Oct 20, 2017, 8:18 PM MDT. Wind, 58 mph, 13 S FORT BELKNAP. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:1d91c53b7c006a61887282ff042b7a00e1ed52c6808dbfeae48bc57ffc7b379b.
Oct 20, 2017, 9:05 PM MDTWind63 mph22 E EKALAKA
Record
  • Oct 20, 2017, 9:05 PM MDT. Wind, 63 mph, 22 E EKALAKA. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:31c6fe54ace6e7ee08387490fdbd33d063ad9911ca371a2c014254e675eda3ab.
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.