Alert archive / New Mexico / Mesoscale Discussions in 2003

Mesoscale Discussion 1779

July 11, 20034 counties in Arizona; 6 counties in New Mexico

The Storm Prediction Center issued this mesoscale discussion at Jul 11, 2003, 3:33 PM MST for 4 counties in Arizona; 6 counties in New Mexico. It was in force for 87 min.

The area

The outline as issued.

The facts

Issued: Jul 11, 2003, 3:33 PM MST (22:33 UTC)
Expired: Jul 11, 2003, 5:00 PM MST
In force: 87 min
Issued by: the Storm Prediction Center

Counties Cochise County, AZ, Graham County, AZ, Greenlee County, AZ, Santa Cruz County, AZ, Doña Ana County, NM, Grant County, NM, Hidalgo County, NM, Luna County, NM, Otero County, NM, Sierra County, NM

The radar

The El Paso radar (KEPZ), 200 km from the middle of the area, began a volume at 22:35 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

Tuscon, AZ (KTUS), launched 12:00Z, 10.6 hours before the alert went out and 223 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: 792 J/kg
Mixed-layer CIN: -388 J/kg
Mixed-layer LCL: 2095 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -24 m²/s²
0-3 km storm-relative helicity: -12 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 11, 10:37 AM MST	Mesoscale Discussion	SPC	Cochise, Graham, Greenlee	113 min
Jul 11, 11:35 AM MST	Severe Thunderstorm Watch	SPC	Cochise, Graham, Greenlee	5 hr
Jul 11, 12:01 PM MST	Mesoscale Discussion	SPC	Colfax, Guadalupe, Harding, Los Alamos, Mora, Quay and 4 more	119 min
Jul 11, 2:38 PM MST	Mesoscale Discussion	SPC	Colfax, Curry, De Baca, Guadalupe, Harding, Mora and 4 more	97 min
Jul 11, 3:25 PM MST	Severe Thunderstorm Watch	SPC	Curry, De Baca, Quay, Roosevelt	6 hr

Nearby

Mesoscale Discussions in New Mexico, 2003 Mesoscale Discussions in Arizona, 2003 Every mesoscale discussion in 2003

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.