Alert archive / Colorado / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 72, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 15, 2021, 3:41 PM MDT for Elbert County, Colorado. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 15, 2021, 3:41 PM MDT (21:41 UTC)
- Expired
- Jun 15, 2021, 4:15 PM MDT
- In force
- 34 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Elbert County, CO
The radar
The Denver radar (KFTG), 61 km from the middle of the area, began a volume at 21:45 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.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 9.7 hours before the alert went out and 93 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
- 23 J/kg
- Mixed-layer CIN
- -565 J/kg
- Mixed-layer LCL
- 3238 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
282
WUUS55 KBOU 152141
SVRBOU
COC039-152215-
/O.NEW.KBOU.SV.W.0072.210615T2141Z-210615T2215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Denver CO
341 PM MDT Tue Jun 15 2021
The National Weather Service in Denver Colorado has issued a
* Severe Thunderstorm Warning for...
Northeastern Elbert County in east central Colorado...
* Until 415 PM MDT.
* At 341 PM MDT, a severe thunderstorm was located 10 miles southwest
of Agate, or 21 miles west of Limon, moving south at 10 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.
* This severe thunderstorm will remain over mainly rural areas of
northeastern Elbert County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3941 10423 3950 10400 3929 10383 3919 10416
TIME...MOT...LOC 2141Z 338DEG 10KT 3936 10408
HAIL...1.00IN
WIND...60MPH
$$
RPK2 follow-up statements
677
WWUS55 KBOU 152152
SVSBOU
Severe Weather Statement
National Weather Service Denver CO
352 PM MDT Tue Jun 15 2021
COC039-152215-
/O.CON.KBOU.SV.W.0072.000000T0000Z-210615T2215Z/
Elbert CO-
352 PM MDT Tue Jun 15 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM MDT
FOR NORTHEASTERN ELBERT COUNTY...
At 352 PM MDT, a severe thunderstorm was located 11 miles southwest
of Agate, or 20 miles west of Limon, moving south at 10 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees. People and
animals outdoors will be injured. Expect hail damage to
roofs, siding, windows, and vehicles.
This severe thunderstorm will remain over mainly rural areas of
northeastern Elbert County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3941 10423 3950 10400 3929 10383 3919 10416
TIME...MOT...LOC 2152Z 338DEG 10KT 3933 10406
HAIL...1.75IN
WIND...60MPH
$$
RPK789
WWUS55 KBOU 152219
SVSBOU
Severe Weather Statement
National Weather Service Denver CO
419 PM MDT Tue Jun 15 2021
COC039-152229-
/O.EXP.KBOU.SV.W.0072.000000T0000Z-210615T2215Z/
Elbert CO-
419 PM MDT Tue Jun 15 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ELBERT COUNTY HAS
EXPIRED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been allowed to expire.
LAT...LON 3941 10423 3950 10400 3929 10383 3919 10416
TIME...MOT...LOC 2219Z 338DEG 10KT 3927 10403
$$
RPKThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 3:29 PM MDT | Special Weather Statement | BOU | Elbert | 31 min |
| Jun 15, 4:14 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 31 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.