Alert archive / Colorado / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 86, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 24, 2021, 3:22 PM MDT for Lincoln County, Washington County, Colorado. It was in force for 38 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 24, 2021, 3:22 PM MDT (21:22 UTC)
- Expired
- Jun 24, 2021, 4:00 PM MDT
- In force
- 38 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Lincoln County, CO, Washington County, CO
The radar
The Denver radar (KFTG), 120 km from the middle of the area, began a volume at 21:24 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, 9.4 hours before the alert went out and 37 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
- 2028 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
294
WUUS55 KBOU 242122
SVRBOU
COC073-121-242200-
/O.NEW.KBOU.SV.W.0086.210624T2122Z-210624T2200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Denver CO
322 PM MDT Thu Jun 24 2021
The National Weather Service in Denver Colorado has issued a
* Severe Thunderstorm Warning for...
South central Washington County in northeastern Colorado...
Northeastern Lincoln County in east central Colorado...
* Until 400 PM MDT.
* At 322 PM MDT, a severe thunderstorm was located 12 miles southwest
of Thurman, or 21 miles northwest of Flagler, 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...
Thurman.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3957 10294 3957 10316 3939 10316 3937 10346
3954 10353 3976 10304
TIME...MOT...LOC 2122Z 252DEG 20KT 3947 10339
HAIL...1.00IN
WIND...60MPH
$$
ENTREKINThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 2:17 PM MDT | Special Weather Statement | BOU | Washington | 43 min |
| Jun 24, 3:34 PM MDT | Special Weather Statement | BOU | Elbert | 41 min |
| Jun 24, 4:02 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln, Washington | 43 min |
| Jun 24, 4:54 PM MDT | Special Weather Statement | BOU | Lincoln | 51 min |
| Jun 24, 5:02 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 43 min |
| Jun 24, 5:46 PM MDT | Special Weather Statement | BOU | Lincoln | 44 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.