Alert archive / Colorado / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 28, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at May 16, 2021, 4:27 PM MDT for Lincoln County, Colorado. It was in force for 33 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
- May 16, 2021, 4:27 PM MDT (22:27 UTC)
- Expired
- May 16, 2021, 5:00 PM MDT
- In force
- 33 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.25 in
- Wind
- 50.0 mph
County Lincoln County, CO
The radar
The Pueblo radar (KPUX), 31 km from the middle of the area, began a volume at 22:28 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, 10.5 hours before the alert went out and 154 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
- 215 J/kg
- Mixed-layer CIN
- -294 J/kg
- Mixed-layer LCL
- 861 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- -44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
660 WUUS55 KBOU 162227 SVRBOU COC073-162300- /O.NEW.KBOU.SV.W.0028.210516T2227Z-210516T2300Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Denver CO 427 PM MDT Sun May 16 2021 The National Weather Service in Denver Colorado has issued a * Severe Thunderstorm Warning for... South central Lincoln County in east central Colorado... * Until 500 PM MDT. * At 427 PM MDT, a severe thunderstorm was located 10 miles southwest of Forder, or 43 miles northwest of North La Junta, and is nearly stationary. HAZARD...Half dollar size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * This severe thunderstorm will remain over mainly rural areas of south central Lincoln County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3857 10397 3869 10374 3852 10366 3852 10395 TIME...MOT...LOC 2227Z 234DEG 2KT 3857 10385 TORNADO...POSSIBLE HAIL...1.25IN WIND...<50MPH $$ RPK
1 follow-up statement
986 WWUS55 KBOU 162240 SVSBOU Severe Weather Statement National Weather Service Denver CO 440 PM MDT Sun May 16 2021 COC073-162300- /O.CON.KBOU.SV.W.0028.000000T0000Z-210516T2300Z/ Lincoln CO- 440 PM MDT Sun May 16 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM MDT FOR SOUTH CENTRAL LINCOLN COUNTY... At 440 PM MDT, a severe thunderstorm was located 11 miles southwest of Forder, or 41 miles northwest of North La Junta, and is nearly stationary. HAZARD...Half dollar size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. This severe thunderstorm will remain over mainly rural areas of south central Lincoln County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3857 10397 3869 10374 3852 10366 3852 10395 TIME...MOT...LOC 2240Z 268DEG 2KT 3855 10384 TORNADO...POSSIBLE HAIL...1.25IN WIND...<50MPH $$ RPK
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 6:00 PM MDT | Special Weather Statement | BOU | Douglas | 30 min |
| May 16, 1:33 PM MDT | Areal Flood Advisory | BOU | Jackson | 87 min |
| May 16, 3:58 PM MDT | Special Weather Statement | BOU | Lincoln | 32 min |
| May 16, 4:13 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 32 min |
| May 16, 4:43 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 32 min |
| May 16, 4:51 PM MDT | Tornado Warning | BOU | Lincoln | 24 min |
| May 16, 4:54 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 36 min |
| May 16, 5:22 PM MDT | Areal Flood Advisory | BOU | Lincoln | 113 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.