Pilot Index / Colorado / May 20, 2020

Preliminary

Storms in Colorado on May 20, 2020

13 published severe reports across Colorado on May 20, 2020.

Updated Oct 28, 2026.

Coverage is partial. 472 source scopes are pending. Pending data is not a zero report count.

Hail reports: 2. Wind reports: 2. Tornado reports: 9.

The table and map show 13 of 13 reports.

TimeWhatSize or SpeedWhereDetails
May 20, 2020, 12:01 AM MDTWind59 mphAKRON
Record
  • May 20, 2020, 12:01 AM MDT. Wind, 59 mph, AKRON. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:8f507dbd729bdbd27bf19f42fc6cf59dc9877f788b6df3630a96aae188062176.
May 20, 2020, 6:38 PM MDTTornadoGREELEY ARPT
Record
  • May 20, 2020, 6:38 PM MDT. Tornado, GREELEY ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:890142.
May 20, 2020, 6:41 PM MDTTornadoEATON ARPT
Record
  • May 20, 2020, 6:41 PM MDT. Tornado, EATON ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:890143.
May 20, 2020, 6:45 PM MDTTornadoGREELEY ARPT
Record
  • May 20, 2020, 6:45 PM MDT. Tornado, GREELEY ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:890145.
May 20, 2020, 6:46 PM MDTTornadoGREELEY ARPT
Record
  • May 20, 2020, 6:46 PM MDT. Tornado, GREELEY ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:890148.
May 20, 2020, 6:56 PM MDTTornado3 NNW KERSEY
Record
  • May 20, 2020, 6:56 PM MDT. Tornado, 3 NNW KERSEY. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:41805c49a60cb95b495a2ac02c5c6dae5a36e1f2604a4d28016e83b4eb973cf6.
May 20, 2020, 6:56 PM MDTTornadoGREELEY ARPT
Record
  • May 20, 2020, 6:56 PM MDT. Tornado, GREELEY ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:890163.
May 20, 2020, 7:09 PM MDTTornado3 E EATON
Record
  • May 20, 2020, 7:09 PM MDT. Tornado, 3 E EATON. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:a21d37d252c15226213d523f7af304d1053432c20dfc93280659af0d6c8822c3.
May 20, 2020, 7:26 PM MDTTornado1 WNW GALETON
Record
  • May 20, 2020, 7:26 PM MDT. Tornado, 1 WNW GALETON. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:d3fa123c72b1a7c1441a54877f4b817f6485770116f2b4b3389c14b2b49c89e3.
May 20, 2020, 7:26 PM MDTTornadoGILL
Record
  • May 20, 2020, 7:26 PM MDT. Tornado, GILL. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:895954.
May 20, 2020, 8:50 PM MDTHail1.25 inKEOTA
Record
  • May 20, 2020, 8:50 PM MDT. Hail, 1.25 in, KEOTA. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:884746.
May 20, 2020, 9:05 PM MDTHail1.50 inKEOTA
Record
  • May 20, 2020, 9:05 PM MDT. Hail, 1.50 in, KEOTA. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:884747.
May 20, 2020, 11:17 PM MDTWind81 mphJOES
Record
  • May 20, 2020, 11:17 PM MDT. Wind, 81 mph, JOES. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:891715.
How We Count

This page uses published ground reports from 2016-01-01 through 2026-10-29. Coverage is partial. 472 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.