Pilot Index / Montana / May 31, 2020

Preliminary

Storms in Montana on May 31, 2020

28 published severe reports across Montana on May 31, 2020.

Updated Oct 28, 2026.

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

Hail reports: 2. Wind reports: 26. Tornado reports: 0.

The table and map show 28 of 28 reports.

TimeWhatSize or SpeedWhereDetails
May 31, 2020, 7:45 AM MDTWind60 mphBIG ARM
Record
  • May 31, 2020, 7:45 AM MDT. Wind, 60 mph, BIG ARM. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:884103.
May 31, 2020, 8:00 AM MDTWind58 mph2 SW EAST MISSOULA
Record
  • May 31, 2020, 8:00 AM MDT. Wind, 58 mph, 2 SW EAST MISSOULA. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:19354f7ea5ab52ac5c9af8fbfae1b8d27924c3c2ffa72874d778b4d3f1bdaa14.
May 31, 2020, 8:00 AM MDTWind58 mph2 WSW LIVINGSTON
Record
  • May 31, 2020, 8:00 AM MDT. Wind, 58 mph, 2 WSW LIVINGSTON. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:eec20aa8d93d64e90735508c1a8814bd871aa3ad9f027828cba267cb2fc6c5e3.
May 31, 2020, 8:11 AM MDTWind78 mph5 N KILA
Record
  • May 31, 2020, 8:11 AM MDT. Wind, 78 mph, 5 N KILA. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:594f426668211759f85d045c1639f501da3b7727b678d3595b3678e35a0787a9.
May 31, 2020, 8:15 AM MDTWind65 mph2 SW EAST MISSOULA
Record
  • May 31, 2020, 8:15 AM MDT. Wind, 65 mph, 2 SW EAST MISSOULA. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:0e9c4e8dc43ff66ef1e05a0018bc3bf1ab2fa2c16ab723eb959a5ef41fc797e7.
May 31, 2020, 8:15 AM MDTWind78 mphSOMERS
Record
  • May 31, 2020, 8:15 AM MDT. Wind, 78 mph, SOMERS. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:884102.
May 31, 2020, 8:22 AM MDTWind69 mphLA SALLE
Record
  • May 31, 2020, 8:22 AM MDT. Wind, 69 mph, LA SALLE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:659f7c9e5984e55052b16882939c5a4fa9b5b296f7f6e12d6048e7c51507e89c.
May 31, 2020, 8:30 AM MDTWind62 mph2 WSW LIVINGSTON
Record
  • May 31, 2020, 8:30 AM MDT. Wind, 62 mph, 2 WSW LIVINGSTON. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:543448963ce1b3ed3857246f6ac550e0715c0c4613cb535aeb41e331d9e28848.
May 31, 2020, 9:21 AM MDTWind59 mph8 SE EAST GLACIER PARK
Record
  • May 31, 2020, 9:21 AM MDT. Wind, 59 mph, 8 SE EAST GLACIER PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:8212ebc15d47b57ed4f1d70aa6749329d389620ca207ee39feb97db2af49af82.
May 31, 2020, 10:09 AM MDTWind76 mph6 WSW TRAILCREEK
Record
  • May 31, 2020, 10:09 AM MDT. Wind, 76 mph, 6 WSW TRAILCREEK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:ed3daff3e0805d96f25328b391d204a0bebd98f79f3867bf3ad1ff0e28e74f58.
May 31, 2020, 10:14 AM MDTWind66 mph3 SW CUT BANK
Record
  • May 31, 2020, 10:14 AM MDT. Wind, 66 mph, 3 SW CUT BANK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:269cd995236703d1d08995fe19f5b274f2c7d09902ef9dce476fa04d256c469b.
May 31, 2020, 10:42 AM MDTWind60 mph4 NNE MCALLISTER
Record
  • May 31, 2020, 10:42 AM MDT. Wind, 60 mph, 4 NNE MCALLISTER. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:1ce088634c4424aa155cec91bc40b1f3764c101e2fc98180445fd15de867ae39.
May 31, 2020, 11:00 AM MDTWind65 mph6 WSW BIG SKY
Record
  • May 31, 2020, 11:00 AM MDT. Wind, 65 mph, 6 WSW BIG SKY. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:14058e3cd96bc179a0ae22a36ad39da84d16174b8a16167077d276e07cf4a99c.
May 31, 2020, 11:50 AM MDTWind62 mph2 E INVERNESS
Record
  • May 31, 2020, 11:50 AM MDT. Wind, 62 mph, 2 E INVERNESS. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:cddf8feabb1186e86a4fc63fcc07164472b1fe136feb1459664daaaade63e647.
May 31, 2020, 12:00 PM MDTWind59 mph6 WSW BIG SKY
Record
  • May 31, 2020, 12:00 PM MDT. Wind, 59 mph, 6 WSW BIG SKY. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:4285e55bfaad3fc9faf90a25bb17836d21c0bdf53da4d33cbe5858ef2c5e5c53.
May 31, 2020, 2:51 PM MDTWind60 mph6 NNW SUNBURST
Record
  • May 31, 2020, 2:51 PM MDT. Wind, 60 mph, 6 NNW SUNBURST. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:1e9fcee148b02ff1039fab63f9d929dac2a07a543b95e0f5dd77976d4dbbe46f.
May 31, 2020, 3:21 PM MDTWind61 mph8 SE EAST GLACIER PARK
Record
  • May 31, 2020, 3:21 PM MDT. Wind, 61 mph, 8 SE EAST GLACIER PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:a66ce4843249c1a271260f44ebec278ec211fa8de578cd7ccc8fc92502314a7d.
May 31, 2020, 4:21 PM MDTWind66 mph8 SE EAST GLACIER PARK
Record
  • May 31, 2020, 4:21 PM MDT. Wind, 66 mph, 8 SE EAST GLACIER PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:ee1d9d46f2b10fc0ffb6c4982b1ba12424953c7ba30c6dd6034e6b089ed23704.
May 31, 2020, 5:06 PM MDTWind64 mph3 WNW MILES CITY
Record
  • May 31, 2020, 5:06 PM MDT. Wind, 64 mph, 3 WNW MILES CITY. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:95d3260c99f6e94aea944b288787ee9346ff3fcac01e856b8dd09982b283595c.
May 31, 2020, 5:06 PM MDTWind64 mphMILES CITY ARPT
Record
  • May 31, 2020, 5:06 PM MDT. Wind, 64 mph, MILES CITY ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:886965.
May 31, 2020, 5:20 PM MDTWind60 mph9 E MILES CITY
Record
  • May 31, 2020, 5:20 PM MDT. Wind, 60 mph, 9 E MILES CITY. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:554ce49de1f71f218ea529c9acb725084b7dd81e6976184d44338db6cc4aae3e.
May 31, 2020, 5:20 PM MDTWind60 mphMILES CITY
Record
  • May 31, 2020, 5:20 PM MDT. Wind, 60 mph, MILES CITY. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:886966.
May 31, 2020, 5:30 PM MDTHail1.00 inMILES CITY
Record
  • May 31, 2020, 5:30 PM MDT. Hail, 1.00 in, MILES CITY. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:886963.
May 31, 2020, 6:20 PM MDTHail1.00 inHAMMOND
Record
  • May 31, 2020, 6:20 PM MDT. Hail, 1.00 in, HAMMOND. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:886964.
May 31, 2020, 6:50 PM MDTWind60 mphNELSON CREEK REC AREA
Record
  • May 31, 2020, 6:50 PM MDT. Wind, 60 mph, NELSON CREEK REC AREA. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:bf73c0443d73e4ff122e46628bf1535e6e94a03fa271865d20c60a49e1752d0d.
May 31, 2020, 6:50 PM MDTWind60 mphWELDON
Record
  • May 31, 2020, 6:50 PM MDT. Wind, 60 mph, WELDON. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:886991.
May 31, 2020, 6:56 PM MDTWind58 mph3 SW CUT BANK
Record
  • May 31, 2020, 6:56 PM MDT. Wind, 58 mph, 3 SW CUT BANK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:8ec677055b937c9e4ff0c984e81e77819bf2c746c17d5844414013ff637012ee.
May 31, 2020, 7:20 PM MDTWind62 mph3 SW CUT BANK
Record
  • May 31, 2020, 7:20 PM MDT. Wind, 62 mph, 3 SW CUT BANK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:01acb265b557a213fe81f1a258100dbf779c6746a329e49942d880c9d39ce4ef.
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.