Alert archive / New Mexico / Mesoscale Discussions in 2017

Mesoscale Discussion 812

May 22, 20176 counties in New Mexico

The Storm Prediction Center issued this mesoscale discussion at May 22, 2017, 5:56 PM MDT for 6 counties in New Mexico. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
May 22, 2017, 5:56 PM MDT (23:56 UTC)
Expired
May 22, 2017, 8:00 PM MDT
In force
2 hr
Issued by
the Storm Prediction Center

Counties Chaves County, NM, De Baca County, NM, Eddy County, NM, Guadalupe County, NM, Lea County, NM, Roosevelt County, NM

The radar

The Cannon AFB radar (KFDX), 145 km from the middle of the area, began a volume at 23:55 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 11.9 hours before the alert went out and 252 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, Midland Regional, TX at 12:00Z on 2017-05-22Temperature 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 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 12:00Z on 2017-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 168 square meters per square second.1939587897117136Sfc1 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
706 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
168 m²/s²
0-3 km storm-relative helicity
187 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.

IssuedProductOfficeCountiesLasted
May 22, 12:23 PM MDTMesoscale DiscussionSPCChaves, De Baca, Eddy, Guadalupe, Lea, Roosevelt97 min
May 22, 1:01 PM MDTSevere Thunderstorm WatchSPCChaves, Curry, De Baca, Eddy, Guadalupe, Lea and 2 more7 hr

Nearby

Mesoscale Discussions in New Mexico, 2017Every 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.