Alert archive / Colorado / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 30, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at May 16, 2021, 4:54 PM MDT for Lincoln County, Colorado. It was in force for 36 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, 4:54 PM MDT (22:54 UTC)
- Expired
- May 16, 2021, 5:30 PM MDT
- In force
- 36 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), 83 km from the middle of the area, began a volume at 22:55 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, 10.9 hours before the alert went out and 111 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.
091 WUUS55 KBOU 162254 SVRBOU COC073-162330- /O.NEW.KBOU.SV.W.0030.210516T2254Z-210516T2330Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Denver CO 454 PM MDT Sun May 16 2021 The National Weather Service in Denver Colorado has issued a * Severe Thunderstorm Warning for... East central Lincoln County in east central Colorado... * Until 530 PM MDT. * At 454 PM MDT, a severe thunderstorm was located 8 miles southwest of Boyero, or 31 miles southeast of Limon, and is nearly stationary. HAZARD...Half dollar size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * Locations impacted include... Boyero. 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 3891 10351 3899 10329 3883 10322 3877 10345 TIME...MOT...LOC 2254Z 310DEG 1KT 3887 10340 TORNADO...POSSIBLE HAIL...1.25IN WIND...<50MPH $$ RPK
2 follow-up statements
646 WWUS55 KBOU 162305 SVSBOU Severe Weather Statement National Weather Service Denver CO 505 PM MDT Sun May 16 2021 COC073-162330- /O.CON.KBOU.SV.W.0030.000000T0000Z-210516T2330Z/ Lincoln CO- 505 PM MDT Sun May 16 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM MDT FOR EAST CENTRAL LINCOLN COUNTY... At 504 PM MDT, a severe thunderstorm was located 8 miles southwest of Boyero, or 32 miles southeast of Limon, moving south at 5 mph. HAZARD...Half dollar size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. This severe thunderstorm will remain over mainly rural areas of east central Lincoln County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3891 10351 3897 10333 3882 10324 3877 10345 TIME...MOT...LOC 2304Z 002DEG 3KT 3886 10340 TORNADO...POSSIBLE HAIL...1.25IN WIND...<50MPH $$ RPK
655
WWUS55 KBOU 162324
SVSBOU
Severe Weather Statement
National Weather Service Denver CO
524 PM MDT Sun May 16 2021
COC073-162334-
/O.EXP.KBOU.SV.W.0030.000000T0000Z-210516T2330Z/
Lincoln CO-
524 PM MDT Sun May 16 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL LINCOLN COUNTY
WILL EXPIRE AT 530 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. However small hail
and heavy rain are still possible with this thunderstorm.
LAT...LON 3891 10351 3897 10333 3882 10324 3877 10345
TIME...MOT...LOC 2324Z 310DEG 1KT 3886 10340
$$
RPKThe 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, 4:27 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 33 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, 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.