Alert archive / Colorado / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 88, NWS Denver/Boulder, CO

June 24, 2021Lincoln County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 24, 2021, 5:02 PM MDT for Lincoln County, Colorado. It was in force for 43 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, 5:02 PM MDT (23:02 UTC)
Expired
Jun 24, 2021, 5:45 PM MDT
In force
43 min
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Lincoln County, CO

The radar

The Pueblo radar (KPUX), 104 km from the middle of the area, began a volume at 23:05 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 24, 3:56 PM MDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 11.0 hours before the alert went out and 79 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.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 12:00Z on 2021-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2021-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

The text

As transmitted.

966 
WUUS55 KBOU 242302
SVRBOU
COC073-242345-
/O.NEW.KBOU.SV.W.0088.210624T2302Z-210624T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Denver CO
502 PM MDT Thu Jun 24 2021

The National Weather Service in Denver Colorado has issued a

* Severe Thunderstorm Warning for...
  East central Lincoln County in east central Colorado...

* Until 545 PM MDT.

* At 502 PM MDT, a severe thunderstorm was located over Hugo, or 14
  miles southeast of Limon, moving east at 20 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...
  Hugo and Arriba. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3919 10358 3939 10316 3908 10316 3900 10349
TIME...MOT...LOC 2302Z 254DEG 16KT 3914 10347 

HAIL...1.00IN
WIND...60MPH
 
$$

ENTREKIN
1 follow-up statement
755 
WWUS55 KBOU 242321
SVSBOU

Severe Weather Statement
National Weather Service Denver CO
521 PM MDT Thu Jun 24 2021

COC073-242345-
/O.CON.KBOU.SV.W.0088.000000T0000Z-210624T2345Z/
Lincoln CO-
521 PM MDT Thu Jun 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM MDT
FOR EAST CENTRAL LINCOLN COUNTY...

At 521 PM MDT, a severe thunderstorm was located 5 miles east of
Hugo, or 19 miles southeast of Limon, moving east at 15 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated. Spotters have reported heavy rain, some 
         street flooding and small hail with this storm in Hugo. 

IMPACT...Expect damage to roofs, siding, and trees. Hail damage to 
         vehicles is expected.

Locations impacted include...
Hugo and Arriba. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3920 10351 3939 10316 3908 10316 3903 10339
TIME...MOT...LOC 2321Z 265DEG 15KT 3913 10337 

HAIL...1.00IN
WIND...60MPH
 
$$

ENTREKIN

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 24, 2:17 PM MDTSpecial Weather StatementBOUWashington43 min
Jun 24, 3:22 PM MDTSevere Thunderstorm WarningBOULincoln, Washington38 min
Jun 24, 3:34 PM MDTSpecial Weather StatementBOUElbert41 min
Jun 24, 4:02 PM MDTSevere Thunderstorm WarningBOULincoln, Washington43 min
Jun 24, 4:54 PM MDTSpecial Weather StatementBOULincoln51 min
Jun 24, 5:46 PM MDTSpecial Weather StatementBOULincoln44 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.