Alert archive / Colorado / Special Weather Statements in 2021

Special Weather Statement, NWS Goodland, KS

May 12, 2021Yuma County, Colorado

NWS Goodland, KS issued this special weather statement at May 12, 2021, 4:31 PM MDT for Yuma County, Colorado. It was in force for 59 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 12, 2021, 4:31 PM MDT (22:31 UTC)
Expired: May 12, 2021, 5:30 PM MDT
In force: 59 min
Issued by: NWS Goodland, KS

County Yuma County, CO

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 10.5 hours before the alert went out and 71 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1031 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 75 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Goodland, KS wrote its last area forecast discussion before this special weather statement went out at May 12, 2:15 PM MDT, 2 hours 16 minutes earlier.

Area forecast discussion, May 12, 2:15 PM MDT, 2 hours 16 minutes before

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Hazardous weather outlook, May 12, 9:54 AM MDT, 6 hours 37 minutes before

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In the hours before

Special weather statement, May 12, 4:31 PM MDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 12, 6:27 AM MDT	Dense Fog Advisory	GLD	Decatur, Rawlins	86 min

Nearby

Special Weather Statements in Colorado, 2021 Every 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.