Alert archive / Texas / Mesoscale Discussions in 2005
Mesoscale Discussion 580
The Storm Prediction Center issued this mesoscale discussion at Apr 17, 2005, 8:18 PM MDT for 5 states. It was in force for 87 min.
The area
The outline as issued.
The facts
- Issued
- Apr 17, 2005, 8:18 PM MDT (02:18 UTC)
- Expired
- Apr 17, 2005, 9:45 PM MDT
- In force
- 87 min
- Issued by
- the Storm Prediction Center
All 59 counties
Baca County, CO, Bent County, CO, Kiowa County, CO, Prowers County, CO, Clark County, KS, Comanche County, KS, Edwards County, KS, Finney County, KS, Ford County, KS, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Kiowa County, KS, Lane County, KS, Meade County, KS, Morton County, KS, Ness County, KS, Pawnee County, KS, Scott County, KS, Seward County, KS, Stanton County, KS, Stevens County, KS, Wichita County, KS, Harding County, NM, Quay County, NM, Union County, NM, Beaver County, OK, Cimarron County, OK, Ellis County, OK, Harper County, OK, Texas County, OK, Armstrong County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Hale County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hutchinson County, TX, Lamb 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, Swisher County, TX, Wheeler County, TX
The radar
The Amarillo radar (KAMA), 119 km from the middle of the area, began a volume at 02:19 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
Amarillo Airport, TX (KAMA), launched 00:00Z, 2.3 hours before the alert went out and 119 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
- 604 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 1605 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 174 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.6
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 18, 4:56 PM MDT | Mesoscale Discussion | SPC | Phillips, Sedgwick, Yuma | 3 hr |
| Apr 18, 11:08 AM MDT | Mesoscale Discussion | SPC | Marshall, Nemaha, Washington | 2 hr |
| Apr 18, 1:09 PM MDT | Mesoscale Discussion | SPC | Haskell, Morton, Seward, Stevens | 2 hr |
| Apr 18, 2:10 PM MDT | Severe Thunderstorm Watch | SPC | Clark, Ford, Grant, Gray, Haskell, Meade and 3 more | 7 hr |
| Apr 18, 4:55 PM MDT | Mesoscale Discussion | SPC | Clark, Ford, Grant, Gray, Haskell, Kearny and 4 more | 2 hr |
| Apr 17, 8:40 PM MDT | Mesoscale Discussion | SPC | Chaves, Curry, De Baca, Eddy, Guadalupe, Lea and 2 more | 95 min |
| Apr 18, 5:43 PM MDT | Mesoscale Discussion | SPC | Greer, Harmon, Jackson | 62 min |
Nearby
Mesoscale Discussions in Texas, 2005Mesoscale Discussions in Kansas, 2005Mesoscale Discussions in Oklahoma, 2005Every mesoscale discussion in 2005
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.