Alert archive / New Mexico / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 12, NWS El Paso, TX

July 19, 2009Grant County, New Mexico

NWS El Paso, TX issued this severe thunderstorm warning at Jul 19, 2009, 3:47 PM MDT for Grant County, New Mexico. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 19, 2009, 3:47 PM MDT (21:47 UTC)
Expired: Jul 19, 2009, 4:45 PM MDT
In force: 58 min
Issued by: NWS El Paso, TX
Area: Storm-based polygon

County Grant County, NM

The radar

The El Paso radar (KEPZ), 185 km from the middle of the area, began a volume at 21:50 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, 9.8 hours before the alert went out and 245 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: 61 J/kg
Mixed-layer CIN: -512 J/kg
Mixed-layer LCL: 3180 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -11 m²/s²
0-3 km storm-relative helicity: 17 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS El Paso, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 18, 6:09 PM MDT	Areal Flood Advisory	EPZ	Otero	3 hr
Jul 18, 7:24 PM MDT	Areal Flood Advisory	EPZ	Grant	3 hr
Jul 18, 8:15 PM MDT	Flash Flood Warning	EPZ	Grant	60 min
Jul 19, 4:17 AM MDT	Areal Flood Advisory	EPZ	Otero	3 hr
Jul 19, 4:11 PM MDT	Areal Flood Advisory	EPZ	Grant	3 hr
Jul 19, 4:50 PM MDT	Areal Flood Advisory	EPZ	Grant	3 hr

Nearby

Severe Thunderstorm Warnings in New Mexico, 2009 Every severe thunderstorm warning in 2009

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.