Alert archive / Colorado / Special Weather Statements in 2021

Special Weather Statement, NWS Goodland, KS

May 2, 2021Yuma County, Colorado

NWS Goodland, KS issued this special weather statement at May 2, 2021, 2:21 PM MDT for Yuma County, Colorado. It was in force for 54 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 2, 2021, 2:21 PM MDT (20:21 UTC)
Expired
May 2, 2021, 3:15 PM MDT
In force
54 min
Issued by
NWS Goodland, KS

County Yuma County, CO

The radar

The Goodland radar (KGLD), 124 km from the middle of the area, began a volume at 20:23 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, 8.4 hours before the alert went out and 60 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 2021-05-02Temperature 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 12:00Z on 2021-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -89 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1976 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
-89 m²/s²
0-3 km storm-relative helicity
10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

207 
WWUS83 KGLD 022021
SPSGLD

Special Weather Statement
National Weather Service Goodland KS
221 PM MDT Sun May 2 2021
 
COZ090-022115-
Yuma County CO-
221 PM MDT Sun May 2 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN YUMA COUNTY UNTIL
315 PM MDT...

At 221 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles east of Atwood to 6 miles east of Elba.
Movement was east at 20 mph.

Wind gusts up to 50 mph will be possible with these storms.

Locations impacted include...
Yuma, Eckley, Heartstrong and Clarkville. 

A Severe Thunderstorm Watch remains in effect until 700 PM MDT for
northeastern Colorado.

LAT...LON 4044 10242 3989 10246 3988 10280 4000 10280
      4000 10279 4035 10279 4035 10278 4044 10278
TIME...MOT...LOC 2021Z 263DEG 17KT 4054 10314 3994 10307 

$$

JN

The office that day

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

IssuedProductOfficeCountiesLasted
May 2, 3:39 PM MDTSpecial Weather StatementGLDCheyenne, Sherman21 min
May 2, 4:05 PM MDTSpecial Weather StatementGLDCheyenne25 min
May 2, 4:22 PM MDTSevere Thunderstorm WarningGLDCheyenne53 min
May 2, 4:46 PM MDTSpecial Weather StatementGLDCheyenne, Sherman, Wallace14 min
May 2, 4:53 PM MDTSpecial Weather StatementGLDCheyenne37 min
May 2, 5:03 PM MDTSevere Thunderstorm WarningGLDCheyenne, Rawlins72 min
May 2, 5:14 PM MDTSevere Thunderstorm WarningGLDSherman, Thomas76 min
May 2, 5:34 PM MDTSpecial Weather StatementGLDLogan, Wallace26 min
May 2, 5:44 PM MDTFlash Flood WarningGLDRawlins, Thomas93 min
May 2, 3:07 PM MDTSpecial Weather StatementGLDYuma53 min
May 2, 3:57 PM MDTSpecial Weather StatementGLDPhillips33 min
May 2, 5:39 PM MDTFlash Flood WarningGLDHitchcock77 min
May 2, 5:40 PM MDTSpecial Weather StatementGLDRed Willow20 min

Nearby

Special Weather Statements in Colorado, 2021Every special weather statement 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.