Pilot Index / Colorado / Aug 19, 2021

Preliminary

Storms in Colorado on Aug 19, 2021

35 published severe reports across Colorado on Aug 19, 2021.

Updated Oct 28, 2026.

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

Hail reports: 29. Wind reports: 2. Tornado reports: 4.

The table and map show 35 of 35 reports.

TimeWhatSize or SpeedWhereDetails
Aug 19, 2021, 2:25 PM MDTHail2.00 inGOLDEN
Record
  • Aug 19, 2021, 2:25 PM MDT. Hail, 2.00 in, GOLDEN. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978625.
Aug 19, 2021, 2:28 PM MDTHail1.00 inARVADA
Record
  • Aug 19, 2021, 2:28 PM MDT. Hail, 1.00 in, ARVADA. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978626.
Aug 19, 2021, 2:29 PM MDTHail1.50 inGOLDEN
Record
  • Aug 19, 2021, 2:29 PM MDT. Hail, 1.50 in, GOLDEN. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978627.
Aug 19, 2021, 2:30 PM MDTHail1.00 inCASTLE ROCK
Record
  • Aug 19, 2021, 2:30 PM MDT. Hail, 1.00 in, CASTLE ROCK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978650.
Aug 19, 2021, 2:33 PM MDTHail1.00 inCASTLE ROCK
Record
  • Aug 19, 2021, 2:33 PM MDT. Hail, 1.00 in, CASTLE ROCK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978630.
Aug 19, 2021, 2:40 PM MDTHail1.00 inARVADA
Record
  • Aug 19, 2021, 2:40 PM MDT. Hail, 1.00 in, ARVADA. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978629.
Aug 19, 2021, 2:45 PM MDTHail1.50 inBROOMFIELD
Record
  • Aug 19, 2021, 2:45 PM MDT. Hail, 1.50 in, BROOMFIELD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978632.
Aug 19, 2021, 2:45 PM MDTHail1.00 inFEDERAL HGT
Record
  • Aug 19, 2021, 2:45 PM MDT. Hail, 1.00 in, FEDERAL HGT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978642.
Aug 19, 2021, 2:45 PM MDTHail1.25 inBROOMFIELD
Record
  • Aug 19, 2021, 2:45 PM MDT. Hail, 1.25 in, BROOMFIELD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978658.
Aug 19, 2021, 2:46 PM MDTHail1.50 inBROOMFIELD
Record
  • Aug 19, 2021, 2:46 PM MDT. Hail, 1.50 in, BROOMFIELD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978655.
Aug 19, 2021, 2:47 PM MDTHail1.00 inBROOMFIELD
Record
  • Aug 19, 2021, 2:47 PM MDT. Hail, 1.00 in, BROOMFIELD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978639.
Aug 19, 2021, 2:48 PM MDTHail1.00 inBROOMFIELD
Record
  • Aug 19, 2021, 2:48 PM MDT. Hail, 1.00 in, BROOMFIELD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978638.
Aug 19, 2021, 2:49 PM MDTHail1.00 inBROOMFIELD
Record
  • Aug 19, 2021, 2:49 PM MDT. Hail, 1.00 in, BROOMFIELD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978637.
Aug 19, 2021, 2:50 PM MDTHail1.00 inFEDERAL HGT
Record
  • Aug 19, 2021, 2:50 PM MDT. Hail, 1.00 in, FEDERAL HGT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978636.
Aug 19, 2021, 2:50 PM MDTHail1.25 inFEDERAL HGT
Record
  • Aug 19, 2021, 2:50 PM MDT. Hail, 1.25 in, FEDERAL HGT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978647.
Aug 19, 2021, 2:50 PM MDTHail1.00 inFEDERAL HGT
Record
  • Aug 19, 2021, 2:50 PM MDT. Hail, 1.00 in, FEDERAL HGT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978648.
Aug 19, 2021, 2:50 PM MDTHail1.25 inBROOMFIELD
Record
  • Aug 19, 2021, 2:50 PM MDT. Hail, 1.25 in, BROOMFIELD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978649.
Aug 19, 2021, 2:53 PM MDTHail1.00 inBROOMFIELD
Record
  • Aug 19, 2021, 2:53 PM MDT. Hail, 1.00 in, BROOMFIELD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978634.
Aug 19, 2021, 3:06 PM MDTHail1.00 inNORTHGLENN
Record
  • Aug 19, 2021, 3:06 PM MDT. Hail, 1.00 in, NORTHGLENN. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978641.
Aug 19, 2021, 3:30 PM MDTHail1.50 inROGGEN
Record
  • Aug 19, 2021, 3:30 PM MDT. Hail, 1.50 in, ROGGEN. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978657.
Aug 19, 2021, 3:45 PM MDTHail1.00 inTHE PINERY
Record
  • Aug 19, 2021, 3:45 PM MDT. Hail, 1.00 in, THE PINERY. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978653.
Aug 19, 2021, 4:02 PM MDTHail1.50 inBENNETT
Record
  • Aug 19, 2021, 4:02 PM MDT. Hail, 1.50 in, BENNETT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978652.
Aug 19, 2021, 4:05 PM MDTHail1.25 inBENNETT
Record
  • Aug 19, 2021, 4:05 PM MDT. Hail, 1.25 in, BENNETT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978656.
Aug 19, 2021, 5:07 PM MDTTornadoHOLYOKE ARPT
Record
  • Aug 19, 2021, 5:07 PM MDT. Tornado, HOLYOKE ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978661.
Aug 19, 2021, 5:09 PM MDTTornadoHOLYOKE ARPT
Record
  • Aug 19, 2021, 5:09 PM MDT. Tornado, HOLYOKE ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978660.
Aug 19, 2021, 5:10 PM MDTTornado4 S PLEASANT VALLEY
Record
  • Aug 19, 2021, 5:10 PM MDT. Tornado, 4 S PLEASANT VALLEY. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:1d36553ce94c6c901a5cbdcfe27b1f6eacc4e88aac8dd90aab8695e8789002eb.
Aug 19, 2021, 5:20 PM MDTTornadoHOLYOKE ARPT
Record
  • Aug 19, 2021, 5:20 PM MDT. Tornado, HOLYOKE ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:978659.
Aug 19, 2021, 5:22 PM MDTWind66 mph2 ESE HOLYOKE
Record
  • Aug 19, 2021, 5:22 PM MDT. Wind, 66 mph, 2 ESE HOLYOKE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:d4e2dd788b38e56f3549b264960f465c81de41de5df41711ed353855b2c5807d.
Aug 19, 2021, 5:22 PM MDTWind66 mphHOLYOKE ARPT
Record
  • Aug 19, 2021, 5:22 PM MDT. Wind, 66 mph, HOLYOKE ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:980840.
Aug 19, 2021, 6:43 PM MDTHail1.00 in6 WSW CLARKVILLE
Record
  • Aug 19, 2021, 6:43 PM MDT. Hail, 1.00 in, 6 WSW CLARKVILLE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:02ef30e6fcff528fc6f7c36eac2302f1321550348c72bdfded5fcc977446e9a1.
Aug 19, 2021, 6:43 PM MDTHail1.00 inCLARKVILLE
Record
  • Aug 19, 2021, 6:43 PM MDT. Hail, 1.00 in, CLARKVILLE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:979646.
Aug 19, 2021, 6:57 PM MDTHail1.00 inCLARKVILLE
Record
  • Aug 19, 2021, 6:57 PM MDT. Hail, 1.00 in, CLARKVILLE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:c689870c3c9efe0dccbeee3ba7187a50d59f3a29f3d6a0966feecebd2b496ac0.
Aug 19, 2021, 6:57 PM MDTHail1.00 inCLARKVILLE
Record
  • Aug 19, 2021, 6:57 PM MDT. Hail, 1.00 in, CLARKVILLE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:979649.
Aug 19, 2021, 8:40 PM MDTHail1.00 in4 NNE WRAY
Record
  • Aug 19, 2021, 8:40 PM MDT. Hail, 1.00 in, 4 NNE WRAY. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:bc53ad55e154688e2bb9bdfc7776478bffc2063931fff4dd4444696ac24181c9.
Aug 19, 2021, 8:50 PM MDTHail1.00 inWRAY MUNI ARPT
Record
  • Aug 19, 2021, 8:50 PM MDT. Hail, 1.00 in, WRAY MUNI ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:979658.
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.