Alert archive / Colorado / Tornado Warnings in 2021

Tornado Warning 11, NWS Goodland, KS

May 23, 2021Yuma County, Colorado

NWS Goodland, KS issued this tornado warning at May 23, 2021, 6:01 PM MDT for Yuma 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 23, 2021, 6:01 PM MDT (00:01 UTC)
Expired
May 23, 2021, 6:30 PM MDT
In force
29 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.25 in

County Yuma County, CO

The radar

The Goodland radar (KGLD), 108 km from the middle of the area, began a volume at 00:04 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
May 23, 12:06 PM MDTTornado WatchSPC8 hr

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 0.0 hours before the alert went out and 65 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 2021-05-24Temperature 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 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2021-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.1939587897117Sfc1 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
3282 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

761 
WFUS53 KGLD 240001
TORGLD
COC125-240045-
/O.NEW.KGLD.TO.W.0011.210524T0001Z-210524T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Goodland KS
601 PM MDT Sun May 23 2021

The National Weather Service in Goodland has issued a

* Tornado Warning for...
  Northwestern Yuma County in northeastern Colorado...

* Until 645 PM MDT.
    
* At 601 PM MDT, a severe thunderstorm capable of producing a tornado
  was located 9 miles south of Yuma, moving northeast at 35 mph.

  HAZARD...Tornado and half dollar size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Eckley around 620 PM MDT.

This includes Highway 385 near mile marker 255.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4024 10223 3991 10255 3995 10280 3997 10280
      4030 10256
TIME...MOT...LOC 0001Z 221DEG 31KT 3999 10266 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

024
2 follow-up statements
357 
WWUS53 KGLD 240014
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
614 PM MDT Sun May 23 2021

COC125-240045-
/O.CON.KGLD.TO.W.0011.000000T0000Z-210524T0045Z/
Yuma CO-
614 PM MDT Sun May 23 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM MDT FOR
NORTHWESTERN YUMA COUNTY...
    
At 614 PM MDT, a severe thunderstorm capable of producing a tornado
was located near Eckley, or 9 miles east of Yuma, moving northeast at
35 mph.

HAZARD...Tornado and half dollar size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Eckley around 620 PM MDT.

This includes Highway 385 near mile marker 255.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4001 10245 4002 10272 4030 10256 4024 10223
TIME...MOT...LOC 0014Z 220DEG 32KT 4008 10255 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

024
050 
WWUS53 KGLD 240030
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
630 PM MDT Sun May 23 2021

COC125-240040-
/O.CAN.KGLD.TO.W.0011.000000T0000Z-210524T0045Z/
Yuma CO-
630 PM MDT Sun May 23 2021

...THE TORNADO WARNING FOR NORTHWESTERN YUMA COUNTY IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.  However small hail and
gusty winds are still possible with this thunderstorm.

A Tornado Watch remains in effect until 800 PM MDT for northeastern
Colorado.

LAT...LON 4001 10245 4002 10272 4030 10256 4024 10223
TIME...MOT...LOC 0027Z 221DEG 31KT 4019 10243 

$$

024

The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 6:27 PM MDTSevere Thunderstorm WarningGLDYuma48 min
May 23, 6:36 PM MDTSevere Thunderstorm WarningGLDKit Carson39 min
May 23, 6:52 PM MDTSpecial Weather StatementGLDCheyenne38 min
May 23, 7:10 PM MDTSevere Thunderstorm WarningGLDCheyenne, Kit Carson50 min
May 23, 7:25 PM MDTSevere Thunderstorm WarningGLDKit Carson, Yuma50 min
May 23, 7:50 PM MDTSevere Thunderstorm WarningGLDCheyenne, Kit Carson55 min
May 24, 5:07 AM MDTDense Fog AdvisoryGLDKit Carson, Yuma4 hr

Nearby

Tornado Warnings in Colorado, 2021Every tornado warning in 2021Tornadoes 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.