Alert archive / Texas / Mesoscale Discussions in 2004
Mesoscale Discussion 1546
The Storm Prediction Center issued this mesoscale discussion at Jul 6, 2004, 2:31 PM MDT for 4 states. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 6, 2004, 2:31 PM MDT (20:31 UTC)
- Expired
- Jul 6, 2004, 5:00 PM MDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 51 counties
Las Animas County, CO, Colfax County, NM, Curry County, NM, De Baca County, NM, Guadalupe County, NM, Harding County, NM, Mora County, NM, Quay County, NM, Roosevelt County, NM, San Miguel County, NM, Union County, NM, Cimarron County, OK, Harmon County, OK, Armstrong County, TX, Bailey County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Cochran County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Dallam County, TX, Deaf Smith County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Foard County, TX, Garza County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hardeman County, TX, Hartley County, TX, Hockley County, TX, Kent County, TX, King County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Moore County, TX, Motley County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Sherman County, TX, Swisher County, TX, Terry County, TX, Yoakum County, TX
The radar
The Amarillo radar (KAMA), 90 km from the middle of the area, began a volume at 20:34 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Midland Regional, TX (KMAF), launched 12:00Z, 8.5 hours before the alert went out and 355 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
- 1036 J/kg
- Mixed-layer CIN
- -414 J/kg
- Mixed-layer LCL
- 1551 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 149 m²/s²
- 0-3 km storm-relative helicity
- 270 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Jul 5, 7:50 PM MDT | Mesoscale Discussion | SPC | Prowers | 55 min |
| Jul 5, 10:45 PM MDT | Severe Thunderstorm Watch | SPC | Baca | 4 hr |
| Jul 6, 12:16 AM MDT | Mesoscale Discussion | SPC | Baca | 119 min |
| Jul 6, 2:55 PM MDT | Severe Thunderstorm Watch | SPC | Curry, De Baca, Harding, Quay, Roosevelt, Union | 6 hr |
| Jul 5, 6:54 PM MDT | Mesoscale Discussion | SPC | Adair, Alfalfa, Cherokee, Craig, Delaware, Garfield and 14 more | 96 min |
| Jul 5, 9:00 PM MDT | Severe Thunderstorm Watch | SPC | Alfalfa, Garfield, Grant, Kay, Noble, Osage and 2 more | 6 hr |
| Jul 5, 10:31 PM MDT | Mesoscale Discussion | SPC | Alfalfa, Beaver, Blaine, Custer, Dewey, Ellis and 7 more | 59 min |
| Jul 6, 2:50 AM MDT | Severe Thunderstorm Watch | SPC | Adair, Atoka, Caddo, Canadian, Carter, Cherokee and 49 more | 5 hr |
| Jul 6, 4:18 AM MDT | Mesoscale Discussion | SPC | Adair, Atoka, Bryan, Caddo, Canadian, Carter and 50 more | 117 min |
Nearby
Mesoscale Discussions in Texas, 2004Mesoscale Discussions in New Mexico, 2004Mesoscale Discussions in Oklahoma, 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; radar from the NEXRAD Level II archive.