Alert archive / Colorado / Mesoscale Discussions in 2017

Mesoscale Discussion 683

May 10, 20174 counties in Colorado; Colfax County, Taos County, Union County, New Mexico

The Storm Prediction Center issued this mesoscale discussion at May 10, 2017, 1:04 PM MDT for 4 counties in Colorado; Colfax County, Taos County, Union County, New Mexico. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: May 10, 2017, 1:04 PM MDT (19:04 UTC)
Expired: May 10, 2017, 3:30 PM MDT
In force: 2 hr
Issued by: the Storm Prediction Center
Chance of a watch: 20%

Counties Bent County, CO, Costilla County, CO, Las Animas County, CO, Otero County, CO, Colfax County, NM, Taos County, NM, Union County, NM

The radar

The Pueblo radar (KPUX), 170 km from the middle of the area, began a volume at 19:06 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 7.1 hours before the alert went out and 307 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: 1056 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 265 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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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 9, 8:32 PM MDT	Mesoscale Discussion	SPC	Baca, Cheyenne, Kiowa, Prowers	58 min
May 9, 7:41 PM MDT	Mesoscale Discussion	SPC	Chaves, Curry, De Baca, Eddy, Harding, Lea and 2 more	2 hr
May 9, 9:17 PM MDT	Mesoscale Discussion	SPC	Curry, Lea, Roosevelt	28 min
May 9, 9:59 PM MDT	Severe Thunderstorm Watch	SPC	Chaves, Curry, Eddy, Lea, Roosevelt	8 hr
May 10, 1:04 AM MDT	Mesoscale Discussion	SPC	Lea, Roosevelt	86 min

Nearby

Mesoscale Discussions in Colorado, 2017 Mesoscale Discussions in New Mexico, 2017 Every mesoscale discussion in 2017

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.