Pilot Index / California / May 20, 2021

Preliminary

Storms in California on May 20, 2021

8 published severe reports across California on May 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: 8. Tornado reports: 0.

The table and map show 8 of 8 reports.

TimeWhatSize or SpeedWhereDetails
May 20, 2021, 3:32 AM PDTWind60 mph7 WNW INDIAN WELLS VALL
Record
  • May 20, 2021, 3:32 AM PDT. Wind, 60 mph, 7 WNW INDIAN WELLS VALL. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:0f3d12808691e68d789fdcd87201f5836380d05f9be750956cc31dcd7c75af6f.
May 20, 2021, 7:10 AM PDTWind60 mph5 NNW MOJAVE
Record
  • May 20, 2021, 7:10 AM PDT. Wind, 60 mph, 5 NNW MOJAVE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:e96b6b5ec7b267a5d2de5ea726bf73845feb50de1b35eb64f991335f9fd862e5.
May 20, 2021, 8:00 AM PDTWind64 mph9 ESE OYNX
Record
  • May 20, 2021, 8:00 AM PDT. Wind, 64 mph, 9 ESE OYNX. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:4dcb4d4039dd6588f000c6854683ea118ce2a642936b60d63eb27de2017a7924.
May 20, 2021, 8:14 AM PDTWind66 mph13 W RED ROCK CANYON
Record
  • May 20, 2021, 8:14 AM PDT. Wind, 66 mph, 13 W RED ROCK CANYON. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:93c8c351af31e2ec78802694ca25bea41c7f588c6c5dce6d48e50a9e9709dafa.
May 20, 2021, 10:01 AM PDTWind65 mph5 NW MOJAVE
Record
  • May 20, 2021, 10:01 AM PDT. Wind, 65 mph, 5 NW MOJAVE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:0f5cd8419cded91bf361fda5c89d57399eaffbadb20fc6820072b45e0b88b623.
May 20, 2021, 10:10 AM PDTWind63 mph8 S KENNEDY MEADOWS
Record
  • May 20, 2021, 10:10 AM PDT. Wind, 63 mph, 8 S KENNEDY MEADOWS. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:f6bc113267ed13c35c0387a6968a75ff5f1c6e1981a90cd190a51bd76d4f5f16.
May 20, 2021, 10:27 AM PDTWind81 mph11 SE WELDON
Record
  • May 20, 2021, 10:27 AM PDT. Wind, 81 mph, 11 SE WELDON. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:b0184bcd4f1769b87448a320d57617d0db75dac7bfa16d59717178123a6a7794.
May 20, 2021, 4:55 PM PDTWind59 mph4 SSE YERMO
Record
  • May 20, 2021, 4:55 PM PDT. Wind, 59 mph, 4 SSE YERMO. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:250b6a3e96f60bee183432709e8334b471bbf1688001fa0dc4f2acf6c9ec482f.
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.