Storm Events Database

Storm Events Database

Event Details:

Event Tornado
-- Scale EF0
-- Length 0.01 Miles
-- Width 50 Yards
State COLORADO
County/Area WELD
WFO BOU
Report Source Trained Spotter
NCEI Data Source CSV
Begin Date 2018-06-19 13:16 MST-7
Begin Location 4SE PROSPECT VALLEY
Begin Lat/Lon 40.03/-104.36
End Date 2018-06-19 13:19 MST-7
End Location 4SE PROSPECT VALLEY
End Lat/Lon 40.03/-104.36
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage 0.00K
Crop Damage 0.00K
Episode Narrative Very large hail, up to 3 inches in diameter, pummeled portions of the Front Range Urban Corridor and extended across the northeast plains of Colorado. Reports of collapsed roofs due to hail were reported, with major hail damage across northern portions of the Denver metro area. The Rocky Mountain Insurance Information Association estimated the property damage from the storm totaled $276.4 million, making it the 8th costliest hailstorm to strike the state to date. Frontage roads along Interstate 76 northeast of Denver were also flooded and washed out. In Lincoln County, large hail in the Arriba and Genoa areas damaged vehicles along Interstate 70. A total of four short-lived tornadoes touched down in the open country of Lincoln and Weld counties. Thunderstorms in Lincoln County also produced damaging wind gusts up to 70 mph.
Event Narrative A tornado touched down briefly in an open field. No damage was observed.


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Event Map:

Note: The tornado track is approximate based on the beginning (B) and ending (E) locations. The actual tornado path may differ from a straight line.
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Measure
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All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 276.400M 0.00K
NIWOT BOULDER CO. CO 06/19/2018 11:40 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
LONGMONT BOULDER CO. CO 06/19/2018 11:43 MST-7 Hail 1.25 in. 0 0 0.00K 0.00K
VIRGINIA DALE LARIMER CO. CO 06/19/2018 11:47 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
NIWOT BOULDER CO. CO 06/19/2018 11:50 MST-7 Hail 1.50 in. 0 0 0.00K 0.00K
THE FORKS LARIMER CO. CO 06/19/2018 11:55 MST-7 Hail 2.00 in. 0 0 0.00K 0.00K
WINDSOR WELD CO. CO 06/19/2018 11:55 MST-7 Hail 1.50 in. 0 0 0.00K 0.00K
FIRESTONE WELD CO. CO 06/19/2018 11:58 MST-7 Hail 1.50 in. 0 0 0.00K 0.00K
FIRESTONE WELD CO. CO 06/19/2018 12:00 MST-7 Hail 1.25 in. 0 0 0.00K 0.00K
GREELEY WELD CO. CO 06/19/2018 12:00 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
DENVER DENVER CO. CO 06/19/2018 12:01 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
LONGMONT MUNI ARPT BOULDER CO. CO 06/19/2018 12:01 MST-7 Hail 1.25 in. 0 0 0.00K 0.00K
MORRISON JEFFERSON CO. CO 06/19/2018 12:01 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
SOUTH GLENN ARAPAHOE CO. CO 06/19/2018 12:04 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
SOUTH GLENN ARAPAHOE CO. CO 06/19/2018 12:05 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
MORRISON JEFFERSON CO. CO 06/19/2018 12:07 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
GREELEY WELD CO. CO 06/19/2018 12:12 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
FIRESTONE WELD CO. CO 06/19/2018 12:15 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
GREENWOOD VLG ARAPAHOE CO. CO 06/19/2018 12:15 MST-7 Hail 2.00 in. 0 0 0.00K 0.00K
LITTLETON ARAPAHOE CO. CO 06/19/2018 12:15 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
FT LUPTON WELD CO. CO 06/19/2018 12:22 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
(DEN)DENVER INTL ARP DENVER CO. CO 06/19/2018 12:25 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
AURORA CHERRY CREEK ARAPAHOE CO. CO 06/19/2018 12:25 MST-7 Hail 1.25 in. 0 0 0.00K 0.00K
ENGLEWOOD ARAPAHOE CO. CO 06/19/2018 12:25 MST-7 Hail 3.00 in. 0 0 276.400M 0.00K
BARNESVILLE WELD CO. CO 06/19/2018 12:30 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
GREENWOOD VLG ARAPAHOE CO. CO 06/19/2018 12:30 MST-7 Hail 2.75 in. 0 0 0.00K 0.00K
GLENDALE DENVER CO. CO 06/19/2018 12:33 MST-7 Hail 2.00 in. 0 0 0.00K 0.00K
SMOKY HILL ARAPAHOE CO. CO 06/19/2018 12:35 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
ARAPAHOE PARK ARAPAHOE CO. CO 06/19/2018 12:39 MST-7 Hail 1.25 in. 0 0 0.00K 0.00K
AURORA CHERRY CREEK ARAPAHOE CO. CO 06/19/2018 12:39 MST-7 Hail 1.25 in. 0 0 0.00K 0.00K
AURORA CHERRY CREEK ARAPAHOE CO. CO 06/19/2018 12:40 MST-7 Hail 2.50 in. 0 0 0.00K 0.00K
SMOKY HILL ARAPAHOE CO. CO 06/19/2018 12:40 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
SMOKY HILL ARAPAHOE CO. CO 06/19/2018 12:45 MST-7 Hail 2.00 in. 0 0 0.00K 0.00K
HUDSON WELD CO. CO 06/19/2018 12:46 MST-7 Hail 2.00 in. 0 0 0.00K 0.00K
(BKF)BUCKLEY AIR FORCE B... ARAPAHOE CO. CO 06/19/2018 12:47 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
HUDSON WELD CO. CO 06/19/2018 12:49 MST-7 Hail 1.25 in. 0 0 0.00K 0.00K
(BKF)BUCKLEY AIR FORCE B... ARAPAHOE CO. CO 06/19/2018 13:00 MST-7 Hail 2.50 in. 0 0 0.00K 0.00K
LAKE GEORGE PARK CO. CO 06/19/2018 13:00 MST-7 Hail 2.75 in. 0 0 0.00K 0.00K
ARAPAHOE PARK ARAPAHOE CO. CO 06/19/2018 13:06 MST-7 Hail 2.75 in. 0 0 0.00K 0.00K
PROSPECT VALLEY WELD CO. CO 06/19/2018 13:16 MST-7 Tornado EF0 0 0 0.00K 0.00K
WELLINGTON LARIMER CO. CO 06/19/2018 13:22 MST-7 Hail 1.50 in. 0 0 0.00K 0.00K
OWL CANYON LARIMER CO. CO 06/19/2018 13:35 MST-7 Hail 1.50 in. 0 0 0.00K 0.00K
PIERCE WELD CO. CO 06/19/2018 13:55 MST-7 Hail 1.50 in. 0 0 0.00K 0.00K
NUNN WELD CO. CO 06/19/2018 14:02 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
THE PINERY DOUGLAS CO. CO 06/19/2018 14:18 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
PARKER DOUGLAS CO. CO 06/19/2018 14:30 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
DRAKES LARIMER CO. CO 06/19/2018 15:05 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
THURMAN WASHINGTON CO. CO 06/19/2018 15:08 MST-7 Hail 1.25 in. 0 0 0.00K 0.00K
DRAKES LARIMER CO. CO 06/19/2018 15:12 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
THURMAN WASHINGTON CO. CO 06/19/2018 15:14 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
AGATE ELBERT CO. CO 06/19/2018 15:17 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
AGATE ELBERT CO. CO 06/19/2018 15:17 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
CEDAR PT ELBERT CO. CO 06/19/2018 15:17 MST-7 Hail 2.00 in. 0 0 0.00K 0.00K
FT COLLINS LARIMER CO. CO 06/19/2018 15:19 MST-7 Hail 1.25 in. 0 0 0.00K 0.00K
FT COLLINS LARIMER CO. CO 06/19/2018 15:24 MST-7 Hail 1.50 in. 0 0 0.00K 0.00K
THURMAN WASHINGTON CO. CO 06/19/2018 15:25 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
FT COLLINS LARIMER CO. CO 06/19/2018 15:28 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
ELBA WASHINGTON CO. CO 06/19/2018 15:40 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
(LIC)LIMON ARPT LINCOLN CO. CO 06/19/2018 15:47 MST-7 Thunderstorm Wind 61 kts. MG 0 0 0.00K 0.00K
LIMON LINCOLN CO. CO 06/19/2018 15:47 MST-7 Thunderstorm Wind 52 kts. EG 0 0 0.00K 0.00K
(LIC)LIMON ARPT LINCOLN CO. CO 06/19/2018 15:48 MST-7 Tornado EF0 0 0 0.00K 0.00K
CEDAR PT ELBERT CO. CO 06/19/2018 15:48 MST-7 Thunderstorm Wind 54 kts. MG 0 0 0.00K 0.00K
LIMON LINCOLN CO. CO 06/19/2018 15:52 MST-7 Tornado EF0 0 0 0.00K 0.00K
LAPORTE LARIMER CO. CO 06/19/2018 15:53 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
HOLYOKE PHILLIPS CO. CO 06/19/2018 16:05 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
GENOA LINCOLN CO. CO 06/19/2018 16:11 MST-7 Tornado EF0 0 0 0.00K 0.00K
(BKF)BUCKLEY AIR FORCE B... ARAPAHOE CO. CO 06/19/2018 17:38 MST-7 Hail 0.88 in. 0 0 0.00K 0.00K
FT MORGAN MORGAN CO. CO 06/19/2018 17:38 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
Totals: 0 0 276.400M 0.00K