Alert archive / Texas / Mesoscale Discussions in 2007

Mesoscale Discussion 1078

June 9, 20074 states

The Storm Prediction Center issued this mesoscale discussion at Jun 9, 2007, 9:50 PM CDT for 4 states. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued: Jun 9, 2007, 9:50 PM CDT (02:50 UTC)
Expired: Jun 9, 2007, 11:15 PM CDT
In force: 85 min
Issued by: the Storm Prediction Center

All 33 counties

Edwards County, KS, Ford County, KS, Gray County, KS, Haskell County, KS, Hodgeman County, KS, Meade County, KS, Seward County, KS, Stevens County, KS, Chaves County, NM, Curry County, NM, De Baca County, NM, Lincoln County, NM, Otero County, NM, Quay County, NM, Roosevelt County, NM, Beaver County, OK, Texas County, OK, Armstrong County, TX, Carson County, TX, Dallam County, TX, Deaf Smith County, TX, Gray County, TX, Hansford County, TX, Hartley County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX

The radar

The Amarillo radar (KAMA), 73 km from the middle of the area, began a volume at 02:52 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

Dodge City, (KDDC), launched 00:00Z, 2.8 hours before the alert went out and 363 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: 2441 J/kg
Mixed-layer CIN: -112 J/kg
Mixed-layer LCL: 1460 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 136 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.7

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
Jun 9, 7:20 PM CDT	Severe Thunderstorm Watch	SPC	Clark, Finney, Ford, Grant, Gray, Haskell and 7 more	5 hr
Jun 9, 11:11 PM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Atchison, Bourbon, Brown, Butler and 46 more	3 hr
Jun 10, 4:16 PM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Cherokee, Coffey, Cowley and 10 more	89 min
Jun 10, 4:33 PM CDT	Tornado Watch	SPC	Allen, Bourbon, Cherokee, Crawford, Labette, Montgomery and 3 more	7 hr
Jun 10, 6:43 PM CDT	Mesoscale Discussion	SPC	Allen, Bourbon, Cherokee, Crawford, Labette, Montgomery and 2 more	92 min
Jun 10, 11:28 AM CDT	Mesoscale Discussion	SPC	Atoka, Carter, Choctaw, Cleveland, Coal, Comanche and 21 more	92 min
Jun 10, 1:37 PM CDT	Severe Thunderstorm Watch	SPC	Adair, Caddo, Canadian, Cherokee, Cleveland, Coal and 35 more	9 hr
Jun 10, 3:35 PM CDT	Mesoscale Discussion	SPC	Adair, Canadian, Cherokee, Cleveland, Coal, Creek and 31 more	55 min

Nearby

Mesoscale Discussions in Texas, 2007 Mesoscale Discussions in Kansas, 2007 Mesoscale Discussions in New Mexico, 2007 Every mesoscale discussion in 2007

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.