Alert archive / Texas / Severe Thunderstorm Watches in 2000
Severe Thunderstorm Watch 222
The Storm Prediction Center issued this severe thunderstorm watch at Apr 30, 2000, 6:00 AM CDT for 8 counties in Oklahoma; 20 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 30, 2000, 6:00 AM CDT (11:00 UTC)
- Expired
- Apr 30, 2000, 11:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 28 counties
Beaver County, OK, Beckham County, OK, Ellis County, OK, Greer County, OK, Harmon County, OK, Harper County, OK, Roger Mills County, OK, Texas County, OK, Armstrong County, TX, Briscoe County, TX, Carson County, TX, Childress County, TX, Collingsworth County, TX, Cottle County, TX, Donley County, TX, Floyd County, TX, Foard County, TX, Gray County, TX, Hall County, TX, Hansford County, TX, Hardeman County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Motley County, TX, Ochiltree County, TX, Roberts County, TX, Wheeler County, TX
The radar
The Amarillo radar (KAMA), 131 km from the middle of the area, began a volume at 11:01 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
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 6:17 AM CDT | Severe Thunderstorm Warning | OUN | Hardeman | 43 min |
| Apr 30, 7:00 AM CDT | Severe Thunderstorm Warning | OUN | Hardeman | 45 min |
| Apr 30, 7:55 AM CDT | Flash Flood Warning | OUN | Hardeman | 3 hr |
| Apr 30, 9:20 AM CDT | Flash Flood Warning | LUB | Childress, Hall | 3 hr |
| Apr 30, 9:34 AM CDT | Flash Flood Warning | AMA | Collingsworth | 3 hr |
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 11.0 hours before the alert went out and 131 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
- 2063 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1561 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 137 m²/s²
- 0-3 km storm-relative helicity
- 440 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 20.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 7:30 PM CDT | Severe Thunderstorm Watch | SPC | Carter, Cotton, Jefferson, Love, Murray, Stephens and 1 more | 6 hr |
| Apr 30, 12:30 AM CDT | Tornado Watch | SPC | Beaver, Cimarron, Texas | 6 hr |
| Apr 30, 1:45 PM CDT | Severe Thunderstorm Watch | SPC | Beckham, Blaine, Caddo, Canadian, Cleveland, Custer and 21 more | 6 hr |
| Apr 30, 2:15 PM CDT | Tornado Watch | SPC | Comanche, Cotton, Jackson, Tillman | 6 hr |
| Apr 30, 12:45 AM CDT | Severe Thunderstorm Watch | SPC | Archer, Baylor, Clay, Foard, Haskell, Jack and 11 more | 5 hr |
| Apr 30, 4:15 AM CDT | Severe Thunderstorm Watch | SPC | Anderson, Collin, Dallas, Denton, Ellis, Henderson and 9 more | 5 hr |
| Apr 30, 4:30 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Callahan, Coleman, Comanche, Concho, Eastland and 10 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Texas, 2000Severe Thunderstorm Watches in Oklahoma, 2000Every severe thunderstorm watch in 2000
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.