Alert archive / Colorado / Tornado Warnings in 2021
Tornado Warning 29, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jun 19, 2021, 2:09 PM MDT for Adams County, Colorado. It was in force for 36 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 19, 2021, 2:09 PM MDT (20:09 UTC)
- Expired
- Jun 19, 2021, 2:45 PM MDT
- In force
- 36 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Tornado
- Observed
- Hail
- 0.75 in
County Adams County, CO
The radar
The Denver radar (KFTG), 53 km from the middle of the area, began a volume at 20:12 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 19, 2:20 PM MDT | TORNADO | 2 Ene Leader, CO | VIDEO AND PHOTOGRAPHS OF A SECOND TORNADO ON THE GROUND FOR APPROXIMATELY 3 MINUTES, WITH NO VISIBLE FUNNEL ATTACHED TO THE CLOUD BASE. LOCATION ESTIMATED BY RADAR. |
| Jun 19, 2:29 PM MDT | TORNADO | 6 Ene Leader, CO | THIRD BRIEF LANDSPOUT ON THE GROUND FOR APPROXIMATELY 3 MINUTES. LOCATION ESTIMATED BY RADAR. |
| Jun 19, 2:35 PM MDT | TORNADO | 5 Se Hoyt, CO | LANDSPOUT SOUTHEAST OF HOYT. LOCATION ESTIMATED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 19, 1:44 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 8.2 hours before the alert went out and 62 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2627 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -23 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
566 WFUS55 KBOU 192009 TORBOU COC001-192045- /O.NEW.KBOU.TO.W.0029.210619T2009Z-210619T2045Z/ BULLETIN - EAS ACTIVATION REQUESTED Tornado Warning National Weather Service Denver CO 209 PM MDT Sat Jun 19 2021 The National Weather Service in Denver Colorado has issued a * Tornado Warning for... Northeastern Adams County in northeastern Colorado... * Until 245 PM MDT. * At 209 PM MDT, a confirmed tornado was located 4 miles east of Leader, or 26 miles south of Fort Morgan, moving east at 15 mph. HAZARD...Tornado. SOURCE...Weather spotters confirmed tornado. IMPACT...Expect damage to mobile homes, roofs, and vehicles. * Locations impacted include... Leader. PRECAUTIONARY/PREPAREDNESS ACTIONS... To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a basement or an interior room on the lowest floor of a sturdy building. Avoid windows. If you are outdoors, in a mobile home, or in a vehicle, move to the closest substantial shelter and protect yourself from flying debris. && LAT...LON 4000 10389 3984 10384 3980 10405 3996 10410 TIME...MOT...LOC 2009Z 254DEG 14KT 3990 10398 TORNADO...OBSERVED HAIL...<.75IN $$ RPK
2 follow-up statements
130
WWUS55 KBOU 192019
SVSBOU
Severe Weather Statement
National Weather Service Denver CO
219 PM MDT Sat Jun 19 2021
COC001-192045-
/O.CON.KBOU.TO.W.0029.000000T0000Z-210619T2045Z/
Adams CO-
219 PM MDT Sat Jun 19 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 PM MDT FOR
NORTHEASTERN ADAMS COUNTY...
At 219 PM MDT, a confirmed tornado was located 4 miles east of
Leader, or 25 miles south of Fort Morgan, moving northeast at 10 mph.
HAZARD...TORNADO.
SOURCE...Weather spotters confirmed tornado.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
This tornadic thunderstorm will remain over mainly rural areas of
northeastern Adams County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 4000 10389 3984 10384 3982 10400 3997 10406
TIME...MOT...LOC 2019Z 241DEG 8KT 3991 10397
TORNADO...OBSERVED
HAIL...<.75IN
$$
RPK749
WWUS55 KBOU 192030
SVSBOU
Severe Weather Statement
National Weather Service Denver CO
230 PM MDT Sat Jun 19 2021
COC001-192045-
/O.CON.KBOU.TO.W.0029.000000T0000Z-210619T2045Z/
Adams CO-
230 PM MDT Sat Jun 19 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 PM MDT FOR
NORTHEASTERN ADAMS COUNTY...
At 230 PM MDT, a severe thunderstorm capable of producing a tornado
was located 6 miles east of Leader, or 24 miles south of Fort Morgan,
moving northeast at 10 mph.
HAZARD...TORNADO.
SOURCE...Radar indicated rotation.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
This tornadic thunderstorm will remain over mainly rural areas of
northeastern Adams County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4000 10389 3984 10384 3982 10400 3997 10406
TIME...MOT...LOC 2030Z 241DEG 8KT 3992 10394
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
RPKThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 8:57 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 33 min |
| Jun 19, 11:54 AM MDT | Fire Weather Watch | BOU | Grand, Jackson, Summit | 15 hr |
| Jun 19, 1:25 PM MDT | Special Weather Statement | BOU | Arapahoe | 35 min |
| Jun 19, 1:57 PM MDT | Special Weather Statement | BOU | Denver | 33 min |
| Jun 19, 2:40 PM MDT | Tornado Warning | BOU | Morgan | 35 min |
| Jun 19, 2:52 PM MDT | Tornado Warning | BOU | Adams | 23 min |
| Jun 19, 2:54 PM MDT | Tornado Warning | BOU | Elbert | 21 min |
| Jun 19, 3:14 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 31 min |
| Jun 19, 3:26 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Washington | 34 min |
| Jun 19, 3:33 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 27 min |
| Jun 19, 3:35 PM MDT | Special Weather Statement | BOU | Washington | 55 min |
| Jun 19, 3:41 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 49 min |
| Jun 19, 3:55 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 50 min |
| Jun 19, 4:04 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 41 min |
| Jun 19, 4:09 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 51 min |
| Jun 19, 4:12 PM MDT | Tornado Warning | BOU | Washington | 33 min |
| Jun 19, 4:15 PM MDT | Tornado Warning | BOU | Logan | 30 min |
| Jun 19, 4:37 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 38 min |
| Jun 19, 4:49 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Phillips, Sedgwick | 41 min |
| Jun 19, 4:57 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 33 min |
| Jun 19, 5:16 PM MDT | Severe Thunderstorm Warning | BOU | Phillips, Sedgwick | 29 min |
Nearby
Tornado Warnings in Colorado, 2021Every tornado warning in 2021Tornadoes in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.