Alert archive / Texas / Severe Thunderstorm Watches in 2001
Severe Thunderstorm Watch 165
The Storm Prediction Center issued this severe thunderstorm watch at Apr 21, 2001, 10:00 PM CDT for 12 counties in Kansas; 4 counties in Oklahoma; 17 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 21, 2001, 10:00 PM CDT (03:00 UTC)
- Expired
- Apr 22, 2001, 3:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 33 counties
Clark County, KS, Edwards County, KS, Ford County, KS, Grant County, KS, Gray County, KS, Haskell County, KS, Kiowa County, KS, Meade County, KS, Morton County, KS, Seward County, KS, Stanton County, KS, Stevens County, KS, Beaver County, OK, Ellis County, OK, Harper County, OK, Texas County, OK, Armstrong County, TX, Carson County, TX, Collingsworth County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Hansford County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Wheeler County, TX
The radar
The Amarillo radar (KAMA), 95 km from the middle of the area, began a volume at 03:03 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
4 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 21, 10:28 PM CDT | Severe Thunderstorm Warning | AMA | Hansford | 47 min |
| Apr 21, 10:45 PM CDT | Severe Thunderstorm Warning | DDC | Seward | 45 min |
| Apr 21, 11:05 PM CDT | Severe Thunderstorm Warning | DDC | Meade | 40 min |
| Apr 22, 12:22 AM CDT | Severe Thunderstorm Warning | DDC | Ford | 38 min |
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 3.0 hours before the alert went out and 95 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
- 1318 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 2056 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 169 m²/s²
- 0-3 km storm-relative helicity
- 226 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.6
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 21, 7:15 PM CDT | Severe Thunderstorm Watch | SPC | Barton, Clay, Cloud, Dickinson, Ellis, Ellsworth and 28 more | 5 hr |
| Apr 22, 12:00 AM CDT | Severe Thunderstorm Watch | SPC | Barton, Chase, Clay, Cloud, Dickinson, Ellis and 28 more | 3 hr |
| Apr 22, 8:00 AM CDT | Severe Thunderstorm Watch | SPC | Cheyenne, Clark, Decatur, Finney, Ford, Gove and 25 more | 4 hr |
| Apr 22, 12:00 PM CDT | Tornado Watch | SPC | Barber, Barton, Cloud, Comanche, Cowley, Decatur and 35 more | 5 hr |
| Apr 22, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | Cheyenne, Decatur, Edwards, Ellis, Finney, Gove and 18 more | 6 hr |
| Apr 22, 4:00 PM CDT | Tornado Watch | SPC | Allen, Anderson, Barton, Butler, Chase, Chautauqua and 45 more | 5 hr |
| Apr 22, 9:30 AM CDT | Severe Thunderstorm Watch | SPC | Beaver, Beckham, Custer, Dewey, Ellis, Greer and 7 more | 6 hr |
| Apr 22, 1:00 PM CDT | Tornado Watch | SPC | Alfalfa, Blaine, Bryan, Caddo, Canadian, Carter and 39 more | 6 hr |
| Apr 22, 6:30 PM CDT | Severe Thunderstorm Watch | SPC | Bosque, Brown, Collin, Comanche, Cooke, Coryell and 22 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Texas, 2001Severe Thunderstorm Watches in Kansas, 2001Severe Thunderstorm Watches in Oklahoma, 2001Every severe thunderstorm watch in 2001
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.