Alert archive / Texas / Mesoscale Discussions in 2004
Mesoscale Discussion 2574
The Storm Prediction Center issued this mesoscale discussion at Dec 24, 2004, 11:51 PM CST for 23 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Dec 24, 2004, 11:51 PM CST (05:51 UTC)
- Expired
- Dec 25, 2004, 4:45 AM CST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 23 counties
Aransas County, TX, Bee County, TX, Brazoria County, TX, Brooks County, TX, Calhoun County, TX, Cameron County, TX, Duval County, TX, Fort Bend County, TX, Galveston County, TX, Goliad County, TX, Hidalgo County, TX, Jackson County, TX, Jim Wells County, TX, Kenedy County, TX, Kleberg County, TX, Live Oak County, TX, Matagorda County, TX, Nueces County, TX, Refugio County, TX, San Patricio County, TX, Victoria County, TX, Wharton County, TX, Willacy County, TX
The radar
The Corpus Christi radar (KCRP), 114 km from the middle of the area, began a volume at 05:51 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
Lake Charles Mun, LA (KLCH), launched 00:00Z, 5.9 hours before the alert went out and 379 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1832 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 144 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 |
|---|---|---|---|---|
| Dec 24, 6:35 PM CST | Mesoscale Discussion | SPC | Aransas, Bee, Brooks, Cameron, Duval, Goliad and 13 more | 6 hr |
| Dec 25, 12:33 AM CST | Mesoscale Discussion | SPC | Chambers, Hardin, Jefferson, Orange | 6 hr |
Nearby
Mesoscale Discussions in Texas, 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.