Alert archive / Colorado / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 81, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 19, 2021, 4:09 PM MDT for Lincoln County, Colorado. It was in force for 51 min. 1 report 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, 4:09 PM MDT (22:09 UTC)
- Expired
- Jun 19, 2021, 5:00 PM MDT
- In force
- 51 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Lincoln County, CO
The radar
The Pueblo radar (KPUX), 97 km from the middle of the area, began a volume at 22:09 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, 4:21 PM MDT | TSTM WND GST 62 | Hugo, CO | MESONET STATION EW0539 HUGO. |
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, 10.2 hours before the alert went out and 89 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.
914
WUUS55 KBOU 192209
SVRBOU
COC073-192300-
/O.NEW.KBOU.SV.W.0081.210619T2209Z-210619T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Denver CO
409 PM MDT Sat Jun 19 2021
The National Weather Service in Denver Colorado has issued a
* Severe Thunderstorm Warning for...
Northeastern Lincoln County in east central Colorado...
* Until 500 PM MDT.
* At 409 PM MDT, severe thunderstorms were located along a line
extending from 7 miles west of Thurman to near Karval, or along a
line extending from 24 miles northwest of Flagler to 53 miles north
of North La Junta, moving east at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees. Hail damage to
vehicles is expected.
* Locations impacted include...
Hugo, Arriba, Genoa, Boyero and Punkin Center.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3882 10374 3957 10335 3957 10316 3889 10316
3879 10320
TIME...MOT...LOC 2209Z 272DEG 21KT 3957 10336 3877 10354
HAIL...1.00IN
WIND...60MPH
$$
RPK1 follow-up statement
390
WWUS55 KBOU 192257
SVSBOU
Severe Weather Statement
National Weather Service Denver CO
457 PM MDT Sat Jun 19 2021
COC073-192307-
/O.EXP.KBOU.SV.W.0081.000000T0000Z-210619T2300Z/
Lincoln CO-
457 PM MDT Sat Jun 19 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LINCOLN COUNTY
WILL EXPIRE AT 500 PM MDT...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 900 PM MDT for
northeastern and east central Colorado.
LAT...LON 3882 10374 3957 10335 3957 10316 3889 10316
3879 10320
TIME...MOT...LOC 2257Z 272DEG 21KT 3956 10302 3876 10321
$$
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, 2:09 PM MDT | Tornado Warning | BOU | Adams | 36 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, 4:12 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
Severe Thunderstorm Warnings in Colorado, 2021Every severe thunderstorm warning 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.