Alert archive / Colorado / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 54, NWS Goodland, KS

May 16, 2021Kit Carson County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at May 16, 2021, 7:16 PM MDT for Kit Carson County, Colorado. It was in force for 29 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, 7:16 PM MDT (01:16 UTC)
Expired
May 16, 2021, 7:45 PM MDT
In force
29 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Hail
1.25 in
Wind
50.0 mph

County Kit Carson County, CO

The radar

The Goodland radar (KGLD), 65 km from the middle of the area, began a volume at 01:19 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 00:00Z, 1.3 hours before the alert went out and 104 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 00:00Z on 2021-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 143 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 00:00Z on 2021-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.1939Sfc1 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
143 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
685 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
-15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

202 
WUUS53 KGLD 170116
SVRGLD
COC063-170145-
/O.NEW.KGLD.SV.W.0054.210517T0116Z-210517T0145Z/

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

The National Weather Service in Goodland has issued a

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

* Until 745 PM MDT.

* At 716 PM MDT, a severe thunderstorm was located 7 miles south of
  Bethune, or 10 miles southeast of Stratton, moving southeast 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
  southeastern Kit Carson County.

This includes the following highways...
 Interstate 70 in Colorado between mile markers 427 and 431.
 Highway 385 between mile markers 173 and 181.

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 3931 10243 3915 10218 3904 10234 3904 10249
      3919 10261
TIME...MOT...LOC 0116Z 318DEG 4KT 3920 10246 

HAIL...1.25IN
WIND...<50MPH
 
$$

JN

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 6:04 PM MDTFlash Flood WarningGLDCheyenne3 hr
May 16, 6:14 PM MDTSpecial Weather StatementGLDCheyenne61 min
May 16, 6:40 PM MDTSevere Thunderstorm WarningGLDKit Carson35 min
May 16, 6:56 PM MDTTornado WarningGLDKit Carson18 min
May 16, 7:07 PM MDTSpecial Weather StatementGLDKit Carson23 min
May 16, 7:10 PM MDTSpecial Weather StatementGLDKit Carson35 min
May 16, 7:10 PM MDTTornado WarningGLDCheyenne, Kit Carson35 min
May 16, 7:22 PM MDTFlash Flood WarningGLDKit Carson5 hr
May 16, 7:42 PM MDTSpecial Weather StatementGLDKit Carson63 min
May 16, 7:58 PM MDTSpecial Weather StatementGLDKit Carson47 min
May 16, 8:24 PM MDTFlash Flood WarningGLDKit Carson4 hr
May 16, 8:39 PM MDTSpecial Weather StatementGLDYuma66 min
May 16, 8:42 PM MDTSpecial Weather StatementGLDKit Carson78 min
May 16, 8:49 PM MDTSpecial Weather StatementGLDCheyenne71 min
May 16, 9:09 PM MDTAreal Flood WarningGLDCheyenne3 hr
May 16, 9:52 PM MDTSpecial Weather StatementGLDYuma53 min
May 16, 10:57 PM MDTSpecial Weather StatementGLDYuma63 min
May 17, 12:12 AM MDTAreal Flood WarningGLDKit Carson6 hr
May 17, 2:27 PM MDTFlash Flood WarningGLDYuma3 hr

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.