Pilot Index / Wyoming / Dec 20, 2021

Preliminary

Storms in Wyoming on Dec 20, 2021

18 published severe reports across Wyoming on Dec 20, 2021.

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: 18. Tornado reports: 0.

The table and map show 18 of 18 reports.

TimeWhatSize or SpeedWhereDetails
Dec 20, 2021, 8:07 PM MSTWind60 mph2 WNW BUFORD
Record
  • Dec 20, 2021, 8:07 PM MST. Wind, 60 mph, 2 WNW BUFORD. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:72017fb96755e9f215a6b07f79c14ebbdcacea6ddb73bb1601630ef0996a4eaa.
Dec 20, 2021, 8:14 PM MSTWind64 mph2 WNW BUFORD
Record
  • Dec 20, 2021, 8:14 PM MST. Wind, 64 mph, 2 WNW BUFORD. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:4db6932427fbab248b684cc95910e91de149c31c3982652c73ab7a2b6a602c32.
Dec 20, 2021, 8:36 PM MSTWind58 mph1 NNW ARLINGTON
Record
  • Dec 20, 2021, 8:36 PM MST. Wind, 58 mph, 1 NNW ARLINGTON. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:9e1c59bc560250da35bd531b389bb8e4de0c7860424009aae267d894da5b8c38.
Dec 20, 2021, 8:36 PM MSTWind59 mph1 SSE BORDEAUX
Record
  • Dec 20, 2021, 8:36 PM MST. Wind, 59 mph, 1 SSE BORDEAUX. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:cf11a4748e66815507af6e5db6e42c6364073688bfaa765559b0b3e1f913b47a.
Dec 20, 2021, 8:52 PM MSTWind69 mph1 SSE BORDEAUX
Record
  • Dec 20, 2021, 8:52 PM MST. Wind, 69 mph, 1 SSE BORDEAUX. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:a0d9ee7ce4e923cc73741874dfebbc43d3e284dc8051f57ff6ac238da62278a5.
Dec 20, 2021, 8:52 PM MSTWind58 mph3 NW ARLINGTON
Record
  • Dec 20, 2021, 8:52 PM MST. Wind, 58 mph, 3 NW ARLINGTON. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:a943aea81186cc90d5670cda3bad85bd1517b48d4a177be60b464a1385f07fd6.
Dec 20, 2021, 9:04 PM MSTWind71 mph6 WSW BIG HORN
Record
  • Dec 20, 2021, 9:04 PM MST. Wind, 71 mph, 6 WSW BIG HORN. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:32bd8714c4db5e79241f84fb9f6865bb57c55514466b1179e62a4582284dad2e.
Dec 20, 2021, 9:19 PM MSTWind61 mph5 WSW DOUGLAS
Record
  • Dec 20, 2021, 9:19 PM MST. Wind, 61 mph, 5 WSW DOUGLAS. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:ffcd31b72661de3a3e23d7eebbba5c95be2ff27ec148f70151ce2c3b83df62ba.
Dec 20, 2021, 9:26 PM MSTWind63 mph7 ESE ARLINGTON
Record
  • Dec 20, 2021, 9:26 PM MST. Wind, 63 mph, 7 ESE ARLINGTON. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:6594321e4363883aa228cd0208c499b9697a4f9abe3c771be8a7b0eae68c2b5e.
Dec 20, 2021, 9:52 PM MSTWind60 mph2 NE GRANITE SPRINGS RE
Record
  • Dec 20, 2021, 9:52 PM MST. Wind, 60 mph, 2 NE GRANITE SPRINGS RE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:e8433967c72fc6efa46db2be3519908ca7d89f52333c5465c4230be38c13f315.
Dec 20, 2021, 9:56 PM MSTWind75 mph1 SSE BORDEAUX
Record
  • Dec 20, 2021, 9:56 PM MST. Wind, 75 mph, 1 SSE BORDEAUX. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:b0ef11e4c059670d0d50691fa24d11ae6687918c803d2cb2fad8745912c19baa.
Dec 20, 2021, 10:01 PM MSTWind61 mph6 S DOUGLAS
Record
  • Dec 20, 2021, 10:01 PM MST. Wind, 61 mph, 6 S DOUGLAS. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:5b273768b8816aaef721e74acd7baa61d6e4f246d08860d536cb484729f87ebe.
Dec 20, 2021, 10:09 PM MSTWind67 mph1 SSW LANDER
Record
  • Dec 20, 2021, 10:09 PM MST. Wind, 67 mph, 1 SSW LANDER. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:816ef88e7d0497870f8cc63f4ad1a268612271a9c4eea0318b48f03ac803fdd2.
Dec 20, 2021, 10:40 PM MSTWind61 mph10 ESE CRYSTAL LAKE CAM
Record
  • Dec 20, 2021, 10:40 PM MST. Wind, 61 mph, 10 ESE CRYSTAL LAKE CAM. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:e42b0259bbf235314c9c5ab60fde4a8245a490a5058a01a65d78b4c584ba230f.
Dec 20, 2021, 10:44 PM MSTWind59 mph8 ESE CRYSTAL LAKE CAMP
Record
  • Dec 20, 2021, 10:44 PM MST. Wind, 59 mph, 8 ESE CRYSTAL LAKE CAMP. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:838d174b2f71dd3dc9b5fb607a17615501b7f50d6cb78842d4a8c67c83d44260.
Dec 20, 2021, 10:50 PM MSTWind68 mph4 SE BANNER
Record
  • Dec 20, 2021, 10:50 PM MST. Wind, 68 mph, 4 SE BANNER. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:8dcb5269b231c5854aa61b196af168388a93917358f1a5004413b65eba8b54e0.
Dec 20, 2021, 11:20 PM MSTWind60 mph2 WNW BUFORD
Record
  • Dec 20, 2021, 11:20 PM MST. Wind, 60 mph, 2 WNW BUFORD. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:d33c5cf44287426580b2321f2229a62af2b451eb0c84118a046f6d6e324a1217.
Dec 20, 2021, 11:24 PM MSTWind70 mph4 SE BANNER
Record
  • Dec 20, 2021, 11:24 PM MST. Wind, 70 mph, 4 SE BANNER. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:93f49e6cfcf86fb40ad637a4f7119673ad40b80995b5286087e49b7eb0381b8c.
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.