Pilot Index / Colorado / Jun 18, 2018

Preliminary

Storms in Colorado on Jun 18, 2018

63 published severe reports across Colorado on Jun 18, 2018.

Updated Oct 28, 2026.

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

Hail reports: 58. Wind reports: 5. Tornado reports: 0.

The table and map show 40 of 63 reports.

TimeWhatSize or SpeedWhereDetails
Jun 18, 2018, 12:05 PM MDTHail2.00 inJEFFERSON CO ARPT
Record
  • Jun 18, 2018, 12:05 PM MDT. Hail, 2.00 in, JEFFERSON CO ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752277.
Jun 18, 2018, 5:58 PM MDTHail1.00 inBOULDER
Record
  • Jun 18, 2018, 5:58 PM MDT. Hail, 1.00 in, BOULDER. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752278.
Jun 18, 2018, 6:00 PM MDTHail1.00 inBOULDER
Record
  • Jun 18, 2018, 6:00 PM MDT. Hail, 1.00 in, BOULDER. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752279.
Jun 18, 2018, 6:04 PM MDTHail1.75 inBOULDER ARPT
Record
  • Jun 18, 2018, 6:04 PM MDT. Hail, 1.75 in, BOULDER ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752280.
Jun 18, 2018, 6:08 PM MDTHail1.50 inBOULDER
Record
  • Jun 18, 2018, 6:08 PM MDT. Hail, 1.50 in, BOULDER. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752281.
Jun 18, 2018, 6:10 PM MDTHail1.25 inBOULDER
Record
  • Jun 18, 2018, 6:10 PM MDT. Hail, 1.25 in, BOULDER. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752282.
Jun 18, 2018, 6:10 PM MDTHail1.75 inBOULDER ARPT
Record
  • Jun 18, 2018, 6:10 PM MDT. Hail, 1.75 in, BOULDER ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752283.
Jun 18, 2018, 6:15 PM MDTHail1.75 inBOULDER ARPT
Record
  • Jun 18, 2018, 6:15 PM MDT. Hail, 1.75 in, BOULDER ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752285.
Jun 18, 2018, 6:19 PM MDTHail1.25 inMEAD
Record
  • Jun 18, 2018, 6:19 PM MDT. Hail, 1.25 in, MEAD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752286.
Jun 18, 2018, 6:25 PM MDTHail1.75 in2 N LONGMONT
Record
  • Jun 18, 2018, 6:25 PM MDT. Hail, 1.75 in, 2 N LONGMONT. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:7c7d06964184db89630ed12a8012ebbb0820f5cb66f3990f86bf809f12ec3d08.
Jun 18, 2018, 6:30 PM MDTHail1.00 inFEDERAL HGT
Record
  • Jun 18, 2018, 6:30 PM MDT. Hail, 1.00 in, FEDERAL HGT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752288.
Jun 18, 2018, 6:32 PM MDTHail1.00 inPLATTEVILLE
Record
  • Jun 18, 2018, 6:32 PM MDT. Hail, 1.00 in, PLATTEVILLE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752289.
Jun 18, 2018, 6:35 PM MDTHail1.00 inNIWOT
Record
  • Jun 18, 2018, 6:35 PM MDT. Hail, 1.00 in, NIWOT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752290.
Jun 18, 2018, 6:43 PM MDTHail1.75 inMEAD
Record
  • Jun 18, 2018, 6:43 PM MDT. Hail, 1.75 in, MEAD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752291.
Jun 18, 2018, 6:48 PM MDTHail1.00 inFREDERICK
Record
  • Jun 18, 2018, 6:48 PM MDT. Hail, 1.00 in, FREDERICK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752292.
Jun 18, 2018, 6:51 PM MDTHail1.75 inFREDERICK
Record
  • Jun 18, 2018, 6:51 PM MDT. Hail, 1.75 in, FREDERICK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752293.
Jun 18, 2018, 6:51 PM MDTHail1.50 inFIRESTONE
Record
  • Jun 18, 2018, 6:51 PM MDT. Hail, 1.50 in, FIRESTONE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752294.
Jun 18, 2018, 6:55 PM MDTHail1.75 inFREDERICK
Record
  • Jun 18, 2018, 6:55 PM MDT. Hail, 1.75 in, FREDERICK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752296.
Jun 18, 2018, 7:00 PM MDTHail2.50 inFREDERICK
Record
  • Jun 18, 2018, 7:00 PM MDT. Hail, 2.50 in, FREDERICK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752297.
Jun 18, 2018, 7:11 PM MDTHail1.00 inGARDEN CITY
Record
  • Jun 18, 2018, 7:11 PM MDT. Hail, 1.00 in, GARDEN CITY. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752298.
Jun 18, 2018, 7:18 PM MDTHail1.75 inFIRESTONE
Record
  • Jun 18, 2018, 7:18 PM MDT. Hail, 1.75 in, FIRESTONE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752299.
Jun 18, 2018, 7:20 PM MDTHail1.00 inMARSHALL
Record
  • Jun 18, 2018, 7:20 PM MDT. Hail, 1.00 in, MARSHALL. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752300.
Jun 18, 2018, 7:28 PM MDTHail1.00 inMARSHALL
Record
  • Jun 18, 2018, 7:28 PM MDT. Hail, 1.00 in, MARSHALL. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752302.
Jun 18, 2018, 7:30 PM MDTHail1.50 inFREDERICK
Record
  • Jun 18, 2018, 7:30 PM MDT. Hail, 1.50 in, FREDERICK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752303.
Jun 18, 2018, 7:31 PM MDTHail3.00 inSUPERIOR
Record
  • Jun 18, 2018, 7:31 PM MDT. Hail, 3.00 in, SUPERIOR. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752304.
Jun 18, 2018, 7:38 PM MDTHail1.75 inBOULDER ARPT
Record
  • Jun 18, 2018, 7:38 PM MDT. Hail, 1.75 in, BOULDER ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752305.
Jun 18, 2018, 7:39 PM MDTHail1.00 inLOUISVILLE
Record
  • Jun 18, 2018, 7:39 PM MDT. Hail, 1.00 in, LOUISVILLE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752306.
Jun 18, 2018, 7:40 PM MDTHail1.25 inLOUISVILLE
Record
  • Jun 18, 2018, 7:40 PM MDT. Hail, 1.25 in, LOUISVILLE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752307.
Jun 18, 2018, 7:43 PM MDTHail1.75 inLOUISVILLE
Record
  • Jun 18, 2018, 7:43 PM MDT. Hail, 1.75 in, LOUISVILLE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752308.
Jun 18, 2018, 7:45 PM MDTHail1.50 inLAFAYETTE
Record
  • Jun 18, 2018, 7:45 PM MDT. Hail, 1.50 in, LAFAYETTE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752309.
Jun 18, 2018, 7:45 PM MDTHail1.00 inLOUISVILLE
Record
  • Jun 18, 2018, 7:45 PM MDT. Hail, 1.00 in, LOUISVILLE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752310.
Jun 18, 2018, 7:45 PM MDTHail2.00 inBOULDER ARPT
Record
  • Jun 18, 2018, 7:45 PM MDT. Hail, 2.00 in, BOULDER ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752311.
Jun 18, 2018, 7:46 PM MDTHail2.00 in1 NW LAFAYETTE
Record
  • Jun 18, 2018, 7:46 PM MDT. Hail, 2.00 in, 1 NW LAFAYETTE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:9115d01620b4a2435f32eca0db2ceb6dd7ea615335efc6cbab5743c5633711b5.
Jun 18, 2018, 7:46 PM MDTHail2.00 inLOUISVILLE
Record
  • Jun 18, 2018, 7:46 PM MDT. Hail, 2.00 in, LOUISVILLE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752313.
Jun 18, 2018, 7:49 PM MDTHail2.00 inLOUISVILLE
Record
  • Jun 18, 2018, 7:49 PM MDT. Hail, 2.00 in, LOUISVILLE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752314.
Jun 18, 2018, 7:49 PM MDTHail1.00 inLOUISVILLE
Record
  • Jun 18, 2018, 7:49 PM MDT. Hail, 1.00 in, LOUISVILLE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752316.
Jun 18, 2018, 7:52 PM MDTHail2.50 inLAFAYETTE
Record
  • Jun 18, 2018, 7:52 PM MDT. Hail, 2.50 in, LAFAYETTE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752317.
Jun 18, 2018, 7:57 PM MDTHail1.50 inLAFAYETTE
Record
  • Jun 18, 2018, 7:57 PM MDT. Hail, 1.50 in, LAFAYETTE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752318.
Jun 18, 2018, 8:00 PM MDTHail1.00 inERIE
Record
  • Jun 18, 2018, 8:00 PM MDT. Hail, 1.00 in, ERIE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752319.
Jun 18, 2018, 8:23 PM MDTHail1.50 inBROOMFIELD
Record
  • Jun 18, 2018, 8:23 PM MDT. Hail, 1.50 in, BROOMFIELD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:752320.
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.