An active and very complicated round of severe thunderstorms affected west Texas during the late afternoon and evening of the 5th. Severe weather development was focused in two areas of the region. Convective initiation occurred first near a sub-synoptic scale outflow boundary that was situated across the southeast Permian Basin. This feature was a remnant from overnight convection to the northeast of the area. Two supercell thunderstorms developed along the boundary over rural areas of southeast Midland and northern Upton Counties. As these storms moved east, storm-scale outflow boundaries were observed in local warning radar base reflectivity and velocity data arcing away from the storms toward the west. Both of these boundaries interacted with the larger scale baroclinic boundary under a field of strongly growing convective towers over southern and central Midland County and northeast Crane County. A series of at least four landspout tornadoes were observed as these interactions occurred.The mesoscale boundary began propagating west-northwest across the basin as the supercell storms provided convective enhancement to the cool (east) side of the boundary. Meanwhile strong to severe thunderstorms began propagating east from the mountainous areas of southeast New Mexico and southwest Texas. The convectively enhanced outflow boundary interacted with the complex of storms over the Upper Trans Pecos region. Large hail and two tornadoes were observed in east-central Reeves County.

Flash Flood in REEVES, TEXAS
From 05-JUN-04 20:45:00 to 05-JUN-04 21:35:00 (CST)
Location: PECOS
Property damage: 0
Crop damage: 0
Reported by: LAW ENFORCEMENT

The Texas Department of Public Safety reported flooding of Farm to Market Road 1450 just east of Pecos.

Hail in REEVES, TEXAS
From 05-JUN-04 20:05:00 to 05-JUN-04 20:05:00 (CST)
Location: PECOS
Magnitude: 0.88 
Property damage: 0
Crop damage: 0
Reported by: GENERAL PUBLIC

Nickel size hail was reported along Farm to Market 1450.

Hail in WARD, TEXAS
From 05-JUN-04 20:35:00 to 05-JUN-04 20:35:00 (CST)
Location: PYOTE
Magnitude: 0.88 
Property damage: 0
Crop damage: 0
Reported by: LAW ENFORCEMENT

Nickel size hail was reported along Interstate 20.

Tornado in CRANE, TEXAS
From 05-JUN-04 17:15:00 to 05-JUN-04 17:15:00 (CST)
Location: CRANE
Tornado F-scale: F0
Property damage: 0
Crop damage: 0
Reported by: LAW ENFORCEMENT

The Odessa Police Department reported a tornado (landspout) in northeast Crane County near U.S. Highway 385.A series of at least four landspout tornadoes developed as outflow from two isolated severe thunderstorms interacted with a pre-existing boundary remnant from the previous night's convection. Strong towering cumulus clouds above the boundary interactions provided sufficient vertical stretching to result in narrow dust filled vortices that visually extended toward the cloud bases. These landspouts were observed by many people in Midland and law officials in Odessa resulting in numerous reports from both public and local emergency officials.

Thunderstorm Wind in JEFF DAVIS, TEXAS
From 05-JUN-04 17:45:00 to 05-JUN-04 17:45:00 (CST)
Location: FT DAVIS
Magnitude: 61 MG
Property damage: 0
Crop damage: 0
Reported by: GENERAL PUBLIC

A rural resident measured a 70 MPH wind gust from a severe thunderstorm.

Thunderstorm Wind in PRESIDIO, TEXAS
From 05-JUN-04 18:55:00 to 05-JUN-04 18:55:00 (CST)
Location: MARFA
Magnitude: 52 MG
Property damage: 0
Crop damage: 0
Reported by: AWOS,ASOS,MESONET,ETC

A severe thunderstorm wind gust was measured by the Marfa AWOS.

Tornado in MIDLAND, TEXAS
From 05-JUN-04 16:52:00 to 05-JUN-04 16:55:00 (CST)
Location: MIDLAND
Tornado F-scale: F0
Property damage: 0
Crop damage: 0
Reported by: LAW ENFORCEMENT

The first in a series of landspout tornadoes developed just west of State Highway 349 south of Midland.

Hail in PECOS, TEXAS
From 05-JUN-04 21:29:00 to 05-JUN-04 21:31:00 (CST)
Location: COYANOSA
Magnitude: 0.88 
Property damage: 0
Crop damage: 0
Reported by: LAW ENFORCEMENT

Hail in PRESIDIO, TEXAS
From 05-JUN-04 19:25:00 to 05-JUN-04 19:25:00 (CST)
Location: MARFA
Magnitude: 0.88 
Property damage: 0
Crop damage: 0
Reported by: PARK/FOREST SERVICE

Tornado in REEVES, TEXAS
From 05-JUN-04 19:58:00 to 05-JUN-04 20:00:00 (CST)
Location: PECOS
Tornado F-scale: F0
Property damage: 0
Crop damage: 0
Reported by: EMERGENCY MANAGER

The large outflow boundary that was enhanced by severe storms over southern Midland and northern Upton Counties continued west across the western Permian Basin and the Upper Trans Pecos. This feature was observed using local warning radar until it interacted with strong to severe convection moving off the higher terrain of southwest Texas. As the outflow boundary encountered this convection near Pecos, local officials observed the first of two tornadoes that occurred in eastern Reeves County south of Pecos near State Highway 17. This tornado may have been a landspout given that at the time the parent thunderstorm was not characterized by severe indicators in reflectivity and velocity Doppler radar data, however, explosive development was noted within the next ten to fifteen minutes prior to the following events. No damage was reported.

Flash Flood in WINKLER, TEXAS
From 05-JUN-04 21:08:00 to 05-JUN-04 23:00:00 (CST)
Location: KERMIT
Property damage: 0
Crop damage: 0
Reported by: LAW ENFORCEMENT

Flash flooding resulted in running water flowing over State Highway 302 west of Kermit.

Tornado in MIDLAND, TEXAS
From 05-JUN-04 17:04:00 to 05-JUN-04 17:08:00 (CST)
Location: MIDLAND
Tornado F-scale: F0
Property damage: 0
Crop damage: 0
Reported by: LAW ENFORCEMENT

A third landspout tornado was observed southeast of the city. This tornado likely crossed State Route 158.

Tornado in REEVES, TEXAS
From 05-JUN-04 20:05:00 to 05-JUN-04 20:10:00 (CST)
Location: PECOS
Tornado F-scale: F0
Property damage: 0
Crop damage: 0
Reported by: EMERGENCY MANAGER

The parent thunderstorm that produced the previous tornado event began to show evidence of explosive development, including a well defined Weak Echo Region and a weak mesocyclone. This storm's development was likely enhanced as relatively weaker convection interacted with a westward moving outflow boundary. Numerous reports were received of a tornado southeast of Pecos. This tornado was located in rural areas east of Toyah Lake and just south of Farm to Market Road 1450. No damage was reported.

Tornado in MIDLAND, TEXAS
From 05-JUN-04 16:57:00 to 05-JUN-04 17:02:00 (CST)
Location: MIDLAND
Tornado F-scale: F0
Property damage: 0
Crop damage: 0
Reported by: LAW ENFORCEMENT

A second landspout tornado developed just east of U.S. Highway 349 south of Midland.