Storms in California on Dec 23, 2020

4 published severe reports across California on Dec 23, 2020.

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: 4. Tornado reports: 0.

The table and map show 4 of 4 reports.

Time	What	Size or Speed	Where	Details
Dec 23, 2020, 10:50 AM PST	Wind	58 mph	8 WSW TEHACHAPI	Record Dec 23, 2020, 10:50 AM PST. Wind, 58 mph, 8 WSW TEHACHAPI. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:c2e1c5468d6128a9b3a7cad80cadd1b524c4df2af4b32cc1e3ef0234d0781114.
Dec 23, 2020, 8:30 PM PST	Wind	66 mph	4 SSW KEENE	Record Dec 23, 2020, 8:30 PM PST. Wind, 66 mph, 4 SSW KEENE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:00b3e8ad39ba6bb5e5fff9c931d26012d238ebc62157c4bc88b57effd4e3d262.
Dec 23, 2020, 11:20 PM PST	Wind	66 mph	9 NE SAN FERNANDO	Record Dec 23, 2020, 11:20 PM PST. Wind, 66 mph, 9 NE SAN FERNANDO. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:06101f446ec82d2d60d576019efee49148d2a4eed63fef1c206c3daaf3c6779b.
Dec 23, 2020, 11:50 PM PST	Wind	59 mph	1 SSE GRAPEVINE	Record Dec 23, 2020, 11:50 PM PST. Wind, 59 mph, 1 SSE GRAPEVINE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:1d4cdf28fa3d1df8e558e96a8a570a4e7b2758d86e655770f9882a3147552762.

Wind, 58 mph

Dec 23, 2020, 10:50 AM PST

8 WSW TEHACHAPI
Record
- Dec 23, 2020, 10:50 AM PST. Wind, 58 mph, 8 WSW TEHACHAPI. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:c2e1c5468d6128a9b3a7cad80cadd1b524c4df2af4b32cc1e3ef0234d0781114.
Wind, 66 mph

Dec 23, 2020, 8:30 PM PST

4 SSW KEENE
Record
- Dec 23, 2020, 8:30 PM PST. Wind, 66 mph, 4 SSW KEENE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:00b3e8ad39ba6bb5e5fff9c931d26012d238ebc62157c4bc88b57effd4e3d262.
Wind, 66 mph

Dec 23, 2020, 11:20 PM PST

9 NE SAN FERNANDO
Record
- Dec 23, 2020, 11:20 PM PST. Wind, 66 mph, 9 NE SAN FERNANDO. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:06101f446ec82d2d60d576019efee49148d2a4eed63fef1c206c3daaf3c6779b.
Wind, 59 mph

Dec 23, 2020, 11:50 PM PST

1 SSE GRAPEVINE
Record
- Dec 23, 2020, 11:50 PM PST. Wind, 59 mph, 1 SSE GRAPEVINE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:1d4cdf28fa3d1df8e558e96a8a570a4e7b2758d86e655770f9882a3147552762.

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.