Alert archive / Texas / Mesoscale Discussions in 2004
Mesoscale Discussion 1359
The Storm Prediction Center issued this mesoscale discussion at Jun 20, 2004, 4:48 PM MDT for Colfax County, Harding County, Union County, New Mexico; 7 counties in Oklahoma; 20 counties in Texas. It was in force for 87 min.
The area
The outline as issued.
The facts
- Issued
- Jun 20, 2004, 4:48 PM MDT (22:48 UTC)
- Expired
- Jun 20, 2004, 6:15 PM MDT
- In force
- 87 min
- Issued by
- the Storm Prediction Center
All 30 counties
Colfax County, NM, Harding County, NM, Union County, NM, Beaver County, OK, Beckham County, OK, Cimarron County, OK, Ellis County, OK, Harper County, OK, Roger Mills County, OK, Texas County, OK, Armstrong County, TX, Carson County, TX, Collingsworth County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Hansford County, TX, Hartley County, TX, Hemphill 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, Wheeler County, TX
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 10.8 hours before the alert went out and 95 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.
- Mixed-layer CAPE
- 1316 J/kg
- Mixed-layer CIN
- -114 J/kg
- Mixed-layer LCL
- 734 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 207 m²/s²
- 0-3 km storm-relative helicity
- 238 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 6:27 PM MDT | Mesoscale Discussion | SPC | Harding, Quay, San Miguel, Union | 93 min |
| Jun 20, 1:35 PM MDT | Severe Thunderstorm Watch | SPC | Colfax, Harding, Union | 6 hr |
| Jun 20, 2:03 PM MDT | Mesoscale Discussion | SPC | Chaves, Colfax, Curry, De Baca, Eddy, Guadalupe and 6 more | 117 min |
| Jun 20, 1:32 PM MDT | Mesoscale Discussion | SPC | Cimarron, Texas | 118 min |
| Jun 20, 5:25 PM MDT | Severe Thunderstorm Watch | SPC | Beaver, Beckham, Dewey, Ellis, Greer, Harper and 4 more | 6 hr |
| Jun 20, 4:30 PM MDT | Mesoscale Discussion | SPC | Borden, Coke, Crane, Crockett, Dawson, Dickens and 19 more | 3 hr |
Nearby
Mesoscale Discussions in Texas, 2004Mesoscale Discussions in Oklahoma, 2004Mesoscale Discussions in New Mexico, 2004Every mesoscale discussion in 2004
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.