Alert archive / Colorado / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 49, NWS Goodland, KS

May 16, 2021Kit Carson County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at May 16, 2021, 5:25 PM MDT for Kit Carson County, Colorado. It was in force for 35 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, 5:25 PM MDT (23:25 UTC)
Expired
May 16, 2021, 6:00 PM MDT
In force
35 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

County Kit Carson County, CO

The radar

The Goodland radar (KGLD), 120 km from the middle of the area, began a volume at 23:25 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, 11.4 hours before the alert went out and 78 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 2021-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 215 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2021-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.193958Sfc1 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
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

Open this sounding in Storm Lab

The text

As transmitted.

332 
WUUS53 KGLD 162325
SVRGLD
COC063-170000-
/O.NEW.KGLD.SV.W.0049.210516T2325Z-210517T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
525 PM MDT Sun May 16 2021

The National Weather Service in Goodland has issued a

* Severe Thunderstorm Warning for...
  Southwestern Kit Carson County in east central Colorado...

* Until 600 PM MDT.

* At 525 PM MDT, a severe thunderstorm was located near Flagler, and
  is nearly stationary.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

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

* This severe thunderstorm will remain over mainly rural areas of
  southwestern Kit Carson County.

This includes Interstate 70 in Colorado between mile markers 391 and
405.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3923 10316 3934 10310 3931 10287 3908 10286
      3905 10309 3909 10317 3912 10316
TIME...MOT...LOC 2325Z 009DEG 4KT 3926 10301 

HAIL...1.25IN
WIND...60MPH
 
$$

JN
1 follow-up statement
541 
WWUS53 KGLD 162340
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
540 PM MDT Sun May 16 2021

COC063-170000-
/O.CON.KGLD.SV.W.0049.000000T0000Z-210517T0000Z/
Kit Carson CO-
540 PM MDT Sun May 16 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM MDT
FOR SOUTHWESTERN KIT CARSON COUNTY...

At 539 PM MDT, a severe thunderstorm was located 4 miles southeast of
Flagler, and is nearly stationary.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Flagler and Seibert. 

This includes Interstate 70 in Colorado between mile markers 391 and
405.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3923 10316 3934 10310 3931 10287 3908 10286
      3905 10309 3909 10317 3912 10316
TIME...MOT...LOC 2339Z 009DEG 4KT 3924 10301 

HAIL...1.25IN
WIND...60MPH
 
$$

JN

The office that day

Everything else NWS Goodland, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 15, 9:28 PM MDTSevere Thunderstorm WarningGLDCheyenne12 min
May 15, 9:43 PM MDTSpecial Weather StatementGLDCheyenne62 min
May 15, 10:05 PM MDTSevere Thunderstorm WarningGLDCheyenne, Kit Carson20 min
May 15, 10:39 PM MDTSpecial Weather StatementGLDKit Carson51 min
May 16, 4:41 PM MDTSpecial Weather StatementGLDCheyenne64 min
May 16, 5:15 PM MDTSpecial Weather StatementGLDKit Carson30 min
May 16, 5:21 PM MDTTornado WarningGLDCheyenne24 min
May 16, 5:30 PM MDTSevere Thunderstorm WarningGLDCheyenne45 min
May 16, 5:44 PM MDTSpecial Weather StatementGLDKit Carson61 min
May 16, 5:46 PM MDTFlash Flood WarningGLDKit Carson3 hr
May 16, 5:58 PM MDTSevere Thunderstorm WarningGLDCheyenne, Kit Carson62 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.