Alert archive / Texas / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 121
The Storm Prediction Center issued this severe thunderstorm watch at Apr 25, 2004, 1:20 PM MDT for 4 counties in New Mexico; 9 counties in Oklahoma; 33 counties in Texas. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 25, 2004, 1:20 PM MDT (19:20 UTC)
- Expired
- Apr 25, 2004, 8:00 PM MDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 46 counties
Curry County, NM, Harding County, NM, Quay County, NM, Union County, NM, Beckham County, OK, Custer County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kiowa County, OK, Roger Mills County, OK, Tillman County, OK, Washita County, OK, Archer County, TX, Armstrong County, TX, Baylor County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Collingsworth County, TX, Cottle County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Floyd County, TX, Foard County, TX, Gray County, TX, Hall County, TX, Hansford County, TX, Hardeman County, TX, Hartley County, TX, Hemphill County, TX, Hutchinson County, TX, Moore County, TX, Motley County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Swisher County, TX, Wheeler County, TX, Wichita County, TX, Wilbarger County, TX
The radar
The Amarillo radar (KAMA), 34 km from the middle of the area, began a volume at 19:18 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.
Warnings issued inside it
18 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 2:22 PM MDT | Severe Thunderstorm Warning | AMA | Wheeler | 53 min |
| Apr 25, 2:30 PM MDT | Severe Thunderstorm Warning | ABQ | Harding, Union | 45 min |
| Apr 25, 2:43 PM MDT | Severe Thunderstorm Warning | OUN | Beckham | 47 min |
| Apr 25, 2:49 PM MDT | Severe Thunderstorm Warning | ABQ | Quay | 41 min |
| Apr 25, 3:21 PM MDT | Severe Thunderstorm Warning | OUN | Greer | 39 min |
| Apr 25, 3:28 PM MDT | Severe Thunderstorm Warning | OUN | Beckham | 47 min |
| Apr 25, 3:40 PM MDT | Severe Thunderstorm Warning | AMA | Hartley, Oldham | 80 min |
| Apr 25, 4:16 PM MDT | Severe Thunderstorm Warning | OUN | Harmon, Jackson | 44 min |
| Apr 25, 4:25 PM MDT | Severe Thunderstorm Warning | AMA | Gray | 65 min |
| Apr 25, 4:49 PM MDT | Severe Thunderstorm Warning | AMA | Roberts | 26 min |
| Apr 25, 5:08 PM MDT | Severe Thunderstorm Warning | AMA | Potter | 82 min |
| Apr 25, 5:15 PM MDT | Severe Thunderstorm Warning | AMA | Roberts | 60 min |
| Apr 25, 5:25 PM MDT | Severe Thunderstorm Warning | AMA | Randall | 65 min |
| Apr 25, 5:38 PM MDT | Severe Thunderstorm Warning | AMA | Armstrong, Carson | 82 min |
| Apr 25, 5:40 PM MDT | Severe Thunderstorm Warning | OUN | Tillman | 50 min |
| Apr 25, 6:31 PM MDT | Severe Thunderstorm Warning | AMA | Randall | 59 min |
| Apr 25, 6:33 PM MDT | Severe Thunderstorm Warning | AMA | Donley | 72 min |
| Apr 25, 6:49 PM MDT | Severe Thunderstorm Warning | LUB | Briscoe | 26 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Dodge City, (KDDC), launched 12:00Z, 7.3 hours before the alert went out and 298 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
- 1423 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 12:29 PM MDT | Mesoscale Discussion | SPC | Harding, Union | 3 hr |
| Apr 25, 4:14 PM MDT | Mesoscale Discussion | SPC | Curry, Harding, Quay, Union | 2 hr |
| Apr 25, 5:10 AM MDT | Mesoscale Discussion | SPC | Aransas, Austin, Brazoria, Calhoun, Colorado, DeWitt and 12 more | 65 min |
| Apr 25, 4:53 PM MDT | Mesoscale Discussion | SPC | Bandera, Edwards, Gillespie, Kerr, Kimble, Mason and 5 more | 97 min |
Nearby
Severe Thunderstorm Watches in Texas, 2004Severe Thunderstorm Watches in Oklahoma, 2004Severe Thunderstorm Watches in New Mexico, 2004Every severe thunderstorm watch 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.