Pilot Index / Montana / Apr 21, 2018

Preliminary

Storms in Montana on Apr 21, 2018

17 published severe reports across Montana on Apr 21, 2018.

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
Apr 21, 2018, 10:21 AM MDTWind61 mph8 SE EAST GLACIER PARK
Record
  • Apr 21, 2018, 10:21 AM MDT. Wind, 61 mph, 8 SE EAST GLACIER PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:e50db87326e4c499782cb504e72bcd1147f9828222922c4f3abb0005593fb692.
Apr 21, 2018, 11:21 AM MDTWind63 mph8 SE EAST GLACIER PARK
Record
  • Apr 21, 2018, 11:21 AM MDT. Wind, 63 mph, 8 SE EAST GLACIER PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:b9ea6b6ac836ca191d0650dfd62d82685bb34d05366b55b8a33e3b8816c0f1d0.
Apr 21, 2018, 11:51 AM MDTWind61 mph1 ENE EAST GLACIER PARK
Record
  • Apr 21, 2018, 11:51 AM MDT. Wind, 61 mph, 1 ENE EAST GLACIER PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:69208198198ce8752a1d106b94c8dbca3eb74f4a519cd7482738e441886dc4cd.
Apr 21, 2018, 1:14 PM MDTWind60 mph3 SW CUT BANK
Record
  • Apr 21, 2018, 1:14 PM MDT. Wind, 60 mph, 3 SW CUT BANK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:a3417a56789041c53ee8808da777fceab92df1e9eb137483ab8fcaf05f6188bd.
Apr 21, 2018, 1:29 PM MDTWind66 mph14 WSW AUGUSTA
Record
  • Apr 21, 2018, 1:29 PM MDT. Wind, 66 mph, 14 WSW AUGUSTA. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:f2f7c764f52d2b2ab5a24c6c107ff94e02cb2901508c67d717e19da97584d983.
Apr 21, 2018, 1:30 PM MDTWind58 mph14 W BYNUM
Record
  • Apr 21, 2018, 1:30 PM MDT. Wind, 58 mph, 14 W BYNUM. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:40dca1cfdb504d5d6bfc0447533d24575c985d78aad38b28e521f7ed284d28a6.
Apr 21, 2018, 1:39 PM MDTWind66 mph14 WSW AUGUSTA
Record
  • Apr 21, 2018, 1:39 PM MDT. Wind, 66 mph, 14 WSW AUGUSTA. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:ed23de88b770f8f7f3428165cf7e67b6f018e2122e30235fd76d01dde417a488.
Apr 21, 2018, 1:42 PM MDTWind58 mph5 WSW GREAT FALLS
Record
  • Apr 21, 2018, 1:42 PM MDT. Wind, 58 mph, 5 WSW GREAT FALLS. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:81320900968132b3171bf22634eb68bcafadfe1e92f4e57ed983ff0629860b6d.
Apr 21, 2018, 1:49 PM MDTWind59 mphCHOTEAU
Record
  • Apr 21, 2018, 1:49 PM MDT. Wind, 59 mph, CHOTEAU. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:5b880f33588d3c7351e8b178dd58014d9f5f1c3cd693c0fc608e2bdee5d58699.
Apr 21, 2018, 2:29 PM MDTWind72 mph14 WSW AUGUSTA
Record
  • Apr 21, 2018, 2:29 PM MDT. Wind, 72 mph, 14 WSW AUGUSTA. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:687e725eb43a787280c4d958ca1b8865183d6f9fda3aaa3f1e8a2cc3c5575c9c.
Apr 21, 2018, 2:36 PM MDTWind58 mph2 NW PENDROY
Record
  • Apr 21, 2018, 2:36 PM MDT. Wind, 58 mph, 2 NW PENDROY. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:17bf95787363a8e036ea06856cf4c37cd7bad298aced215a0cf5e71c3ef242ad.
Apr 21, 2018, 2:53 PM MDTWind59 mph5 WSW GREAT FALLS
Record
  • Apr 21, 2018, 2:53 PM MDT. Wind, 59 mph, 5 WSW GREAT FALLS. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:47a7019b601623bf22994169e086f6ca7206d2b3dcc7fdc86e00b117a907b535.
Apr 21, 2018, 3:49 PM MDTWind61 mph9 SSW FORT BENTON
Record
  • Apr 21, 2018, 3:49 PM MDT. Wind, 61 mph, 9 SSW FORT BENTON. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:151348d46ae680e087ceb6f00f1c016d20b50e6095600d82e44f7651789a3695.
Apr 21, 2018, 5:10 PM MDTWind63 mph12 SSE HEART BUTTE
Record
  • Apr 21, 2018, 5:10 PM MDT. Wind, 63 mph, 12 SSE HEART BUTTE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:233cac1d88f6d9348174ca51bb6753043f4361b1a57d1f0841a69cdba5eece18.
Apr 21, 2018, 5:49 PM MDTWind62 mph1 ENE EAST GLACIER PARK
Record
  • Apr 21, 2018, 5:49 PM MDT. Wind, 62 mph, 1 ENE EAST GLACIER PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:239585beace89d7cb480342e3c1cb0305932d4608537899d6c47f9df8dfa6d8f.
Apr 21, 2018, 5:51 PM MDTWind60 mph1 NE KREMLIN
Record
  • Apr 21, 2018, 5:51 PM MDT. Wind, 60 mph, 1 NE KREMLIN. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:626bc2c33561d16f6d9a88544f08556a3dc2e9a335ae6e0462b41cf5e4cb92a5.
Apr 21, 2018, 6:21 PM MDTWind75 mph8 SE EAST GLACIER PARK
Record
  • Apr 21, 2018, 6:21 PM MDT. Wind, 75 mph, 8 SE EAST GLACIER PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:defaf6609b2c5913ff34ee1b5fcc5bd44da068caa67a0399e3df7ffd0cacdecf.
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.