Alert archive / Colorado / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 60, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 6, 2021, 4:02 PM MDT for Morgan County, Weld County, Colorado. It was in force for 28 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 6, 2021, 4:02 PM MDT (22:02 UTC)
- Expired
- Jun 6, 2021, 4:30 PM MDT
- In force
- 28 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Morgan County, CO, Weld County, CO
The radar
The Cheyenne radar (KCYS), 95 km from the middle of the area, began a volume at 22:02 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, 10.0 hours before the alert went out and 100 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
- 2939 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
801
WUUS55 KBOU 062202
SVRBOU
COC087-123-062230-
/O.NEW.KBOU.SV.W.0060.210606T2202Z-210606T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Denver CO
402 PM MDT Sun Jun 6 2021
The National Weather Service in Denver Colorado has issued a
* Severe Thunderstorm Warning for...
East central Weld County in northeastern Colorado...
Northwestern Morgan County in northeastern Colorado...
* Until 430 PM MDT.
* At 401 PM MDT, a severe thunderstorm was located 7 miles southeast
of Keota, or 26 miles northwest of Fort Morgan, moving southeast at
5 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...
New Raymer.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4056 10415 4074 10401 4067 10376 4045 10381
4040 10401
TIME...MOT...LOC 2201Z 314DEG 6KT 4061 10400
HAIL...1.00IN
WIND...60MPH
$$
DANIELSON1 follow-up statement
314
WWUS55 KBOU 062225
SVSBOU
Severe Weather Statement
National Weather Service Denver CO
425 PM MDT Sun Jun 6 2021
COC087-123-062235-
/O.EXP.KBOU.SV.W.0060.000000T0000Z-210606T2230Z/
Weld CO-Morgan CO-
425 PM MDT Sun Jun 6 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL WELD AND
NORTHWESTERN MORGAN COUNTIES WILL EXPIRE AT 430 PM MDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
LAT...LON 4056 10415 4074 10401 4067 10376 4045 10381
4040 10401
TIME...MOT...LOC 2225Z 314DEG 6KT 4058 10397
$$
DANIELSONThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 6:59 PM MDT | Special Weather Statement | BOU | Douglas | 46 min |
| Jun 5, 7:04 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 41 min |
| Jun 6, 12:30 PM MDT | Areal Flood Advisory | BOU | Larimer | 90 min |
| Jun 6, 4:08 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 37 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.