Alert archive / Texas / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 181, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Nov 12, 2000, 5:29 PM CST for Austin County, Colorado County, Wharton County, Texas. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Nov 12, 2000, 5:29 PM CST (23:29 UTC)
- Expired
- Nov 12, 2000, 6:00 PM CST
- In force
- 31 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Austin County, TX, Colorado County, TX, Wharton County, TX
The radar
The Houston radar (KHGX), 123 km from the middle of the area, began a volume at 23:28 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Nov 12, 1:30 PM CST | Tornado Watch | SPC | 6 hr |
| Nov 12, 5:00 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 11.5 hours before the alert went out and 229 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
- 622 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 712 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.8
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Houston/Galveston, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Nov 12, 2:25 PM CST, 3 hours 4 minutes earlier.
Area forecast discussion, Nov 12, 2:25 PM CST, 3 hours 4 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 225 PM CST SUN NOV 12 2000 MINI-SUPERCELL THUNDERSTORMS HAVE DEVELOPED ALONG THE WRN CWA AT EARLY AFTERNOON...ONE OF WHICH PRODUCED AN APPARENT TORNADO AND DAMAGE IN COLORADO COUNTY EARLIER. SO THE SEVERE THREAT IS THE PRIMARY SHORT TERM FORECAST ISSUE. OTHERWISE THE MAIN FORECAST ISSUES ARE POPS TONIGHT/MON... TEMPS TUE/WED...POPS THU...AND TEMPS FRI-SUN. THE 12Z NCEP MODELS ARE IN FAIR TO GOOD AGREEMENT. THE MAIN DIFFERENCE IS THE AVN BLASTING THE FRONT OFF THE COAST QUICKLY... WITH THE ETA/NGM SOLUTION A MORE SEDATE PUSH. PREFER THE ETA/NGM SOLUTION BASED ON THE FRONT'S SLOW PROGRESS...LACK OF STRONG PRESSURE RISES BEHIND IT...AND ALREADY E-W ORIENTATION OF THE FRONT WEST OF SJT...INDICATING IT'S NEARING THE END OF SWD PROGRESS. ONCE THE SHORT WAVE TROUGH AND JET STREAK MOVE EWRD THE FRONT SHOULD ACCELERATE...BUT NOT AS MUCH AS THE AVN. EXPECT SEVERE WEATHER TO CONTINUE INTO THE EVENING. CONFIDENCE IS HIGH FOR CATEGORICAL POPS OVERNIGHT...SO WILL RETAIN MOST OF CURRENT FORECAST IN THIS REGARD. THE LATEST ETA/NGM INDICATE ENHANCED ISENTROPIC LIFT OVER SERN TX AS THE FRONT PUSHES OFF THE COAST...SO WILL EXTEND SHOWERS/LIGHT RAIN POPS THROUGH THE DAY TOMORROW...WITH SLOWER CLEARING FROM NW TO SE. SIMILARLY...MON NIGHT TEMPS WILL PROBABLY NOT DROP AS FAR AS IN THE CURRENT FORECAST...SO WILL BOOST SOME. HOWEVER...WILL STICK WITH CLOSE TO PAST PATH OF SHADING AWAY FROM THE TOO WARM FWC AFTER FROPA...THEN AVOIDING THE TOO COLD FAN ON RETURN FLOW WARMUP. NO CHANGES TO THE EXTENDED...THU STILL LOOKS FAVORABLE FOR THE NEXT FRONT/POPS....THEN SEASONALLY COOL WITH A SLIGHT CHANCE OF RAIN OVER THE WEEKEND. .KHGX...SCA IN EFFECT FOR ALL BAYS AND GULF WATERS. 31/47/48 PRELIMS... CLL EU 045/050 035/056 037 +20 IAH EU 050/055 040/059 038 930 GLS WB 062/062 048/0@57 047 840
In the hours before
Special weather statement, Nov 12, 1:35 PM CST, 3 hours 54 minutes before
TXZ163-164-176>179-195>199-210>213-226-227-235-130100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 135 PM CST SUN NOV 12 2000 THE STORM PREDICTION CENTER HAS ISSUED TORNADO WATCH 802 FOR MOST OF SOUTHEAST TEXAS UNTIL 7 PM. COUNTIES THE WATCH AREA INCLUDE: AUSTIN...BRAZOS...BURLESON...COLORADO...FORT BEND...GRIMES... HARRIS...HOUSTON...JACKSON...MADISON...MONTGOMERY...POLK... SAN JACINTO...TRINITY...WALKER... WALLER...WASHINGTON...WHARTON. LEON...MILAM AND ROBERTSON COUNTIES IN CENTRAL TEXAS ARE ALSO INCLUDED IN THE WATCH AREA. 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. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION STATIONS...OR YOUR CABLE TELEVISION SERVICE PROVIDER FOR LATER STATEMENTS CONCERNING THIS SEVERE WEATHER THREAT. 31/JWZ
Special weather statement, Nov 12, 5:00 PM CST, 29 minutes before
GMZ330-335-350-355-TXZ164-177>179-197>200-210>214-226-227-235>238- 130500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 500 PM CST SUN NOV 12 2000 THE STORM PREDICTION CENTER HAS ISSUED TORNADO WATCH 803 FOR MOST OF SOUTHEAST TEXAS UNTIL 11 PM. THIS WATCH REPLACES THE EARLIER TORNADO WATCH. COUNTIES THE WATCH AREA INCLUDE: AUSTIN...BRAZORIA...CHAMBERS...COLORADO...FORT BEND...GALVESTON... GRIMES...HARRIS...JACKSON...LIBERTY...MATAGORDA...MONTGOMERY...POLK... SAN JACINTO...TRINITY...WALKER...WALLER...WASHINGTON...WHARTON... GALVESTON AND MATAGORDA BAYS...AND THE ADJACENT COASTAL WATERS. 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. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION STATIONS...OR YOUR CABLE TELEVISION SERVICE PROVIDER FOR LATER STATEMENTS CONCERNING THIS SEVERE WEATHER THREAT. 31/JWZ
Special weather statement, Nov 12, 5:05 PM CST, 24 minutes before
TXZ163-176-195-196-122320- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 505 PM CST SUN NOV 12 2000 ...FOUR COUNTIES CLEARED FROM TORNADO WATCH... TORNADO WATCH 802 HAS BEEN REPLACED BY A NEW TORNADO WATCH CLOSER TO THE COAST. BURLESON...BRAZOS...MADISON...AND HOUSTON COUNTIES HAVE BEEN CLEARED FROM ALL TORNADO WATCHES. THIS INCLUDES THE CITIES OF CALDWELL...BRYAN...COLLEGE STATION...MADISONVILLE...AND CROCKdETT. NO ADDITIONAL SEVERE WEATHER IS EXPECTED IN THESE COUNTIES THE REST OF TONIGHT. 31/JWZ
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 12, 1:10 PM CST | Tornado Warning | HGX | Austin, Colorado | 65 min |
| Nov 12, 1:42 PM CST | Tornado Warning | HGX | Colorado, Jackson, Wharton | 63 min |
| Nov 12, 2:52 PM CST | Severe Thunderstorm Warning | HGX | Austin, Colorado, Washington | 53 min |
| Nov 12, 3:09 PM CST | Tornado Warning | HGX | Austin, Colorado, Washington | 36 min |
| Nov 12, 3:41 PM CST | Tornado Warning | HGX | Austin, Colorado | 49 min |
| Nov 12, 3:49 PM CST | Tornado Warning | HGX | Waller | 56 min |
| Nov 12, 4:11 PM CST | Tornado Warning | HGX | Colorado | 49 min |
| Nov 12, 4:11 PM CST | Tornado Warning | HGX | Harris, Montgomery | 64 min |
| Nov 12, 4:25 PM CST | Tornado Warning | HGX | Austin | 35 min |
| Nov 12, 4:57 PM CST | Tornado Warning | HGX | Colorado | 33 min |
| Nov 12, 5:12 PM CST | Tornado Warning | HGX | Waller | 48 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2000Every severe thunderstorm warning 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.