Alert archive / Texas / Mesoscale Discussions in 2004
Mesoscale Discussion 384
The Storm Prediction Center issued this mesoscale discussion at Apr 19, 2004, 4:18 PM MDT for Lea County, New Mexico; Beaver County, Cimarron County, Texas County, Oklahoma; 56 counties in Texas. It was in force for 117 min.
The area
The outline as issued.
The facts
- Issued
- Apr 19, 2004, 4:18 PM MDT (22:18 UTC)
- Expired
- Apr 19, 2004, 6:15 PM MDT
- In force
- 117 min
- Issued by
- the Storm Prediction Center
All 60 counties
Lea County, NM, Beaver County, OK, Cimarron County, OK, Texas County, OK, Andrews County, TX, Armstrong County, TX, Bailey County, TX, Borden County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Cochran County, TX, Crane County, TX, Crockett County, TX, Crosby County, TX, Dallam County, TX, Dawson County, TX, Deaf Smith County, TX, Dickens County, TX, Donley County, TX, Ector County, TX, Floyd County, TX, Gaines County, TX, Garza County, TX, Glasscock County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hansford County, TX, Hartley County, TX, Hockley County, TX, Howard County, TX, Hutchinson County, TX, Kent County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Moore County, TX, Motley County, TX, Ochiltree County, TX, Oldham County, TX, Parmer County, TX, Pecos County, TX, Potter County, TX, Randall County, TX, Reagan County, TX, Roberts County, TX, Scurry County, TX, Sherman County, TX, Sterling County, TX, Swisher County, TX, Terrell County, TX, Terry County, TX, Upton County, TX, Ward County, TX, Winkler County, TX, Yoakum County, TX
The radar
The Lubbock radar (KLBB), 95 km from the middle of the area, began a volume at 22:18 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, 10.3 hours before the alert went out and 98 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
- 420 J/kg
- Mixed-layer CIN
- -285 J/kg
- Mixed-layer LCL
- 1364 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 84 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
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 |
|---|---|---|---|---|
| Apr 19, 1:02 PM MDT | Mesoscale Discussion | SPC | Lea, Roosevelt | 118 min |
| Apr 19, 3:45 PM MDT | Tornado Watch | SPC | Lea | 5 hr |
| Apr 19, 2:00 PM MDT | Tornado Watch | SPC | Beaver, Cimarron, Texas | 6 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; radar from the NEXRAD Level II archive.