Alert archive / Texas / Tornado Watches in 2000
Tornado Watch 773
The Storm Prediction Center issued this tornado watch at Oct 31, 2000, 5:00 PM CST for 32 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 31, 2000, 5:00 PM CST (23:00 UTC)
- Expired
- Oct 31, 2000, 10:00 PM CST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 32 counties
Andrews County, TX, Armstrong County, TX, Borden County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Collingsworth County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Gaines County, TX, Garza County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hockley County, TX, Howard County, TX, Kent County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Mitchell County, TX, Motley County, TX, Potter County, TX, Randall County, TX, Scurry County, TX, Swisher County, TX, Terry County, TX, Wheeler County, TX
The radar
The Lubbock radar (KLBB), 3 km from the middle of the area, began a volume at 23:02 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 |
|---|---|---|---|---|
| Oct 31, 5:29 PM CST | Severe Thunderstorm Warning | AMA | Potter | 61 min |
| Oct 31, 6:56 PM CST | Severe Thunderstorm Warning | LUB | Hockley | 49 min |
| Oct 31, 8:13 PM CST | Severe Thunderstorm Warning | AMA | Carson | 47 min |
| Oct 31, 8:18 PM CST | Flash Flood Warning | MAF | Andrews, Gaines | 3 hr |
The nearest sounding before it
Midland Regional, TX (KMAF), launched 12:00Z, 11.0 hours before the alert went out and 190 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
- 458 J/kg
- Mixed-layer CIN
- -224 J/kg
- Mixed-layer LCL
- 781 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 266 m²/s²
- 0-3 km storm-relative helicity
- 261 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
776 WWUS9 KMKC 312243 SEL3 SEL3 MKC WW 312238 TXZ000-010400- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 773 STORM PREDICTION CENTER NORMAN OK 438 PM CST TUE OCT 31 2000 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF WEST TEXAS AND PANHANDLE EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 500 PM UNTIL 1000 PM CST. TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 65 STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES WEST OF BIG SPRING TEXAS TO 50 MILES NORTHEAST OF AMARILLO TEXAS. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. OTHER WATCH INFORMATION... CONTINUE...WW 771...WW 772... DISCUSSION...STORMS ARE DEVELOPING SWD ALONG DRY LINE VICINITY NM/TX BORDER. AS VIGOROUS TROUGH AND ASSOCIATED STRONG WIND FIELDS ROTATE INTO HIGH PLAINS THIS EVENING...STORMS WILL BECOME SEVERE WITH ADDITIONAL DEVELOPMENT POSSIBLE E OF LN. STORMS E OF LINE WILL HAVE GREATEST SUPERCELL AND TORNADO POTENTIAL WHERE LOW LEVEL SHEAR PROFILES ARE MORE FAVORABLE. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 22035. ...HALES 354,0995 321,1004 321,1030 354,1021
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 31, 2:30 PM CST | Tornado Watch | SPC | Hansford, Hemphill, Hutchinson, Lipscomb, Ochiltree, Roberts | 7 hr |
Nearby
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.