Storm Events Database
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Storm Events Database
Event Details:
| Event | Tornado |
| -- Scale | EF0 |
| -- Length | 0.53 Miles |
| -- Width | 100 Yards |
| State | COLORADO |
| County/Area | ELBERT |
| WFO | BOU |
| Report Source | Storm Chaser |
| NCEI Data Source | CSV |
| Begin Date | 2015-06-04 16:12 MST-7 |
| Begin Location | 5W SIMLA |
| Begin Lat/Lon | 39.1779/-104.1262 |
| End Date | 2015-06-04 16:16 MST-7 |
| End Location | 5W SIMLA |
| End Lat/Lon | 39.1702/-104.1254 |
| 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 | Severe thunderstorms broke out across Boulder, Denver, Elbert, Jefferson and Larimer Counties. Two large and long lived tornadoes developed in Larimer County near Berthoud and near Simla in Elbert County. The tornado that occurred along the Boulder and Larimer county line was rated an EF3 at it's highest damage point, with maximum winds estimated at 135 to 140 mph. The path length was 6 miles long with a width of one quarter mile at times. In Elbert County, 17 tornadoes touched down, with EF1 damage observed southwest and southeast of Simla. Four homes suffered severe damage; two were uninhabitable. In addition, two other homes suffered moderate damage with slight damage reported to eight other residences. Large hail up to baseball size occurred in Elbert County, with hail up to tennis ball size observed in Boulder County. The hail damaged cars and homes; breaking windows and windshields. |
| Event Narrative | A tornado touched down for a short time but no damage was observed. |
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.
All events for this episode:
| Location | County/Zone | St. | Date | Time | T.Z. | Type | Mag | Dth | Inj | PrD | CrD |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Totals: | 0 | 0 | 30.00K | 10.00K | |||||||
| SIMLA | ELBERT CO. | CO | 06/04/2015 | 12:19 | MST-7 | Thunderstorm Wind | 70 kts. EG | 0 | 0 | 0.00K | 0.00K |
| CEDAR PT | ELBERT CO. | CO | 06/04/2015 | 14:22 | MST-7 | Hail | 1.50 in. | 0 | 0 | 0.00K | 0.00K |
| AGATE | ELBERT CO. | CO | 06/04/2015 | 14:42 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| MATHESON | ELBERT CO. | CO | 06/04/2015 | 14:46 | MST-7 | Hail | 1.50 in. | 0 | 0 | 0.00K | 0.00K |
| AGATE | ELBERT CO. | CO | 06/04/2015 | 14:52 | MST-7 | Hail | 1.50 in. | 0 | 0 | 0.00K | 0.00K |
| (DEN)DENVER INTL ARP | DENVER CO. | CO | 06/04/2015 | 15:22 | MST-7 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| FONDIS | ELBERT CO. | CO | 06/04/2015 | 15:38 | MST-7 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| SIMLA | ELBERT CO. | CO | 06/04/2015 | 16:12 | MST-7 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| SIMLA | ELBERT CO. | CO | 06/04/2015 | 16:20 | MST-7 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| SIMLA | ELBERT CO. | CO | 06/04/2015 | 16:30 | MST-7 | Tornado | EF1 | 0 | 0 | 0.00K | 0.00K |
| SIMLA | ELBERT CO. | CO | 06/04/2015 | 16:38 | MST-7 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| SIMLA | ELBERT CO. | CO | 06/04/2015 | 16:40 | MST-7 | Hail | 2.75 in. | 0 | 0 | 0.00K | 0.00K |
| DRAKES | LARIMER CO. | CO | 06/04/2015 | 16:48 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| HARMONY | LARIMER CO. | CO | 06/04/2015 | 16:51 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| FT COLLINS | LARIMER CO. | CO | 06/04/2015 | 16:52 | MST-7 | Hail | 1.25 in. | 0 | 0 | 0.00K | 0.00K |
| SIMLA | ELBERT CO. | CO | 06/04/2015 | 16:53 | MST-7 | Tornado | EF1 | 0 | 0 | 0.00K | 0.00K |
| LAPORTE | LARIMER CO. | CO | 06/04/2015 | 16:57 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| LOVELAND | LARIMER CO. | CO | 06/04/2015 | 16:58 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| SIMLA | ELBERT CO. | CO | 06/04/2015 | 16:59 | MST-7 | Hail | 2.50 in. | 0 | 0 | 0.00K | 0.00K |
| SIMLA | ELBERT CO. | CO | 06/04/2015 | 17:00 | MST-7 | Hail | 2.50 in. | 0 | 0 | 0.00K | 0.00K |
| SIMLA | ELBERT CO. | CO | 06/04/2015 | 17:05 | MST-7 | Hail | 2.75 in. | 0 | 0 | 0.00K | 0.00K |
| SIMLA | ELBERT CO. | CO | 06/04/2015 | 17:05 | MST-7 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| WELLINGTON | LARIMER CO. | CO | 06/04/2015 | 17:08 | MST-7 | Hail | 1.25 in. | 0 | 0 | 0.00K | 0.00K |
| SIMLA | ELBERT CO. | CO | 06/04/2015 | 17:15 | MST-7 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| SIMLA | ELBERT CO. | CO | 06/04/2015 | 17:17 | MST-7 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| HARMONY | LARIMER CO. | CO | 06/04/2015 | 17:20 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| SIMLA | ELBERT CO. | CO | 06/04/2015 | 17:21 | MST-7 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| SIMLA | ELBERT CO. | CO | 06/04/2015 | 17:26 | MST-7 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| HIGHLAND | BOULDER CO. | CO | 06/04/2015 | 17:30 | MST-7 | Tornado | EF3 | 0 | 0 | 0.00K | 0.00K |
| SIMLA | ELBERT CO. | CO | 06/04/2015 | 17:32 | MST-7 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| LOVELAND | LARIMER CO. | CO | 06/04/2015 | 17:33 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| MATHESON | ELBERT CO. | CO | 06/04/2015 | 17:34 | MST-7 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| ARVADA | JEFFERSON CO. | CO | 06/04/2015 | 17:35 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| KUTCH | ELBERT CO. | CO | 06/04/2015 | 17:36 | MST-7 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| KUTCH | ELBERT CO. | CO | 06/04/2015 | 17:41 | MST-7 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| BERTHOUD | LARIMER CO. | CO | 06/04/2015 | 17:46 | MST-7 | Hail | 2.00 in. | 0 | 0 | 0.00K | 0.00K |
| GOLDEN | JEFFERSON CO. | CO | 06/04/2015 | 18:00 | MST-7 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| BERTHOUD | LARIMER CO. | CO | 06/04/2015 | 18:03 | MST-7 | Tornado | EF3 | 0 | 0 | 0.00K | 0.00K |
| LYONS | BOULDER CO. | CO | 06/04/2015 | 18:03 | MST-7 | Hail | 2.50 in. | 0 | 0 | 0.00K | 0.00K |
| KUTCH | ELBERT CO. | CO | 06/04/2015 | 18:10 | MST-7 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| LYONS | BOULDER CO. | CO | 06/04/2015 | 18:13 | MST-7 | Hail | 2.00 in. | 0 | 0 | 0.00K | 0.00K |
| LONGMONT | BOULDER CO. | CO | 06/04/2015 | 19:10 | MST-7 | Hail | 1.25 in. | 0 | 0 | 0.00K | 0.00K |
| LONGMONT | BOULDER CO. | CO | 06/04/2015 | 19:30 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| LYONS | BOULDER CO. | CO | 06/04/2015 | 19:30 | MST-7 | Hail | 2.50 in. | 0 | 0 | 0.00K | 0.00K |
| BERTHOUD | LARIMER CO. | CO | 06/04/2015 | 20:15 | MST-7 | Flash Flood | 0 | 0 | 15.00K | 10.00K | |
| LYONS | BOULDER CO. | CO | 06/04/2015 | 20:22 | MST-7 | Flash Flood | 0 | 0 | 15.00K | 0.00K | |
| ARVADA | JEFFERSON CO. | CO | 06/04/2015 | 20:30 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| ARVADA | JEFFERSON CO. | CO | 06/04/2015 | 20:44 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| DENVER | DENVER CO. | CO | 06/04/2015 | 22:04 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| DENVER | DENVER CO. | CO | 06/04/2015 | 22:10 | MST-7 | Hail | 1.50 in. | 0 | 0 | 0.00K | 0.00K |
| DENVER | DENVER CO. | CO | 06/04/2015 | 22:10 | MST-7 | Hail | 1.25 in. | 0 | 0 | 0.00K | 0.00K |
| DENVER | DENVER CO. | CO | 06/04/2015 | 22:11 | MST-7 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| DENVER | DENVER CO. | CO | 06/04/2015 | 22:15 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| (DEN)DENVER INTL ARP | DENVER CO. | CO | 06/04/2015 | 22:19 | MST-7 | Hail | 1.50 in. | 0 | 0 | 0.00K | 0.00K |
| DENVER | DENVER CO. | CO | 06/04/2015 | 22:23 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| Totals: | 0 | 0 | 30.00K | 10.00K |
