Alert archive / Texas / Tornado Warnings in 2001
Tornado Warning 1, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this tornado warning at Feb 28, 2001, 6:04 AM CST for Liberty County, Texas. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Feb 28, 2001, 6:04 AM CST (12:04 UTC)
- Expired
- Feb 28, 2001, 6:45 AM CST
- In force
- 41 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Liberty County, TX
The radar
The Houston radar (KHGX), 78 km from the middle of the area, began a volume at 12:07 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 nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 0.1 hours before the alert went out and 152 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
- 1563 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 440 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 2.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS54 KHGX 281207 TORHOU TXC291-281245- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 604 AM CST WED FEB 28 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * TORNADO WARNING FOR... EASTERN LIBERTY COUNTY IN SOUTHEAST TEXAS * UNTIL 645 AM CST * AT 557 AM CST...DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 3 MILES SOUTH OF DAISETTA...MOVING EAST AT 25 MPH. * LOCATIONS IN THE PATH OF THE TORNADO INCLUDE... DEVERS...DAISETTA...AMES MOVE TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR. ABANDON YOUR CAR OR MOBILE HOME FOR A STRONG SHELTER NOW PLEASE REPORT SEVERE WEATHER TO THE COUNTY SHERIFF...LOCAL POLICE... OR DEPARTMENT OF PUBLIC SAFETY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE. LAT...LON 3022 9493 3005 9496 2996 9455 3017 9454
What forecasters said that day
The local office's own words before this tornado 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 tornado warning went out at Feb 28, 3:00 AM CST, 3 hours 4 minutes earlier.
Area forecast discussion, Feb 28, 3:00 AM CST, 3 hours 4 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 300 AM CST WED FEB 28 2001 COLD FRONT NEAR HUNTSVILLE...SHOULD APPROACH IAH NEAR 11Z AND NEAR COAST AROUND 13Z OR SO. 15-20 MILE WIDE BAND OF SHRA/TSRA ALONG FRONT W/WIDLY SCATTERED CONVECTION ELSEWHERE CWFA. UPPER 60S DEWPOINTS OVER COASTAL ZONES AND 60S ELSEWHERE AHEAD OF FRONT. 850 MB ANALYSIS INDICATE WIDE AREA OF 10-12 DEG F DEWPOINTS (MUCH OF LONE STAR STATE). WEAK UPPER LEVEL DIVERGENCE EVIDENT E TX BUT MID LEVEL LAPSE RATES NOT STRONG. LLVL JET NOT THAT STRONG EITHER. HENCE...DO NOT EXPECT SEVERE WEATHER FROM THIS FRONT AS IT MOVES ACROSS CWFA THIS MORNING. CONVECTION WILL BECOME MORE FOCUSED ONCE IT REACH COASTAL WATERS TODAY. APPROACHING COLD FRONT AND PRE-FRONTAL TROUGH WILL MAKE WIND DIRECTION FORECAST ACROSS COASTAL WATERS QUITE A CHALLENGE TODAY. TEMPERATURE CONTRAST ABOUT 30 DEG F DIFFERENCE BETWEEN FTW AND HGX. DITTO DEWPOINTS. MAX TEMPS TODAY OBVIOUSLY WILL BE IN THE MORNING W/READINGS LOWERING THE REST OF THE DAY. MOIST AIR MASS ON TOP OF INVERSION WILL REMAIN UNSTABLE W/SW FLOW. INSTABILITY WILL INCREASE ALONG W/PW VALUES LATE THURSDAY TO FRIDAY AND SFC COASTAL TROUGH/LOW WILL ENHANCE LLVL CONVERGENCE. POSSIBLE HEAVY PCPN DURING THIS PERIOD. AVN HINTS AT DRY MID/UPPER LEVEL SLOT PUNCHING THROUGH SATURDAY LOWERING PW VALUES TO UNDER AN INCH BY MID DAY (WE SHALL SEE). HOWEVER...WRAP-AROUND MOISTURE FROM UPPER LOW PROBABLY WILL GIVE REGION CHC PRECIP DURING THE WEEKEND. .KHGX...NONE. 37/42/39 PRELIMS... CLL TR 056/044 050/046 056 755 IAH TR 068/050 055/049 060 755 GLS TR 066/054 060/056 064 765 V
In the hours before
Special weather statement, Feb 28, 4:15 AM CST, 1 hour 49 minutes before
TXZ163-164-176>179-195>200-210>214-226-227-235>238-282200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 415 AM CST WED FEB 28 2001 ...HEAVY RAIN EVENT POSSIBLE FOR SOUTHEAST TEXAS LATE THURSDAY THROUGH SATURDAY... A COLD FRONT WILL MOVE ACROSS SOUTHEAST TEXAS THIS MORNING AND SLOW DOWN NEAR THE COAST. THE FRONT IS EXPECTED TO SLOWLY MOVE TO THE COASTAL WATERS BY THURSDAY. MEANWHILE...OVERRUNNING MOIST GULF AIR WILL CONTINUE TO GIVE OUR REGION A CHANCE RAIN THE NEXT SEVERAL DAYS. AN APPROACHING UPPER LEVEL DISTURBANCE WILL INCREASE RAIN CHANCES LATE THURSDAY THROUGH SATURDAY. THE SOIL SOAKED BY PREVIOUS RAINS WILL CAUSE HEAVY RAINFALL TO READILY RUNOFF INTO LOW LYING AREAS. THIS MAY PRODUCE FLOODING NEAR RIVERS...STREAMS AND OTHER LOW LYING AREAS. ALTHOUGH EXACT AMOUNTS ARE DIFFICULT TO DETERMINE AT THIS TIME... RAINFALL TOTALS THROUGH SATURDAY WILL PROBABLY BE 1 TO 3 INCHES WITH HIGHER LOCALIZED AMOUNTS. LATER UPDATES TO THIS STATEMENT WILL PROVIDE MORE DETAILS AS THIS WEATHER SITUATION EVOLVES. RESIDENTS OF SOUTHEAST TEXAS SHOULD KEEP ABREAST OF THIS SITUATION BY LISTENING TO NOAA WEATHER RADIO OR OTHER MEDIA SOURCES. STAY TUNED TO NOAA WEATHER RADIO OR OTHER NEWS SOURCES FOR THE LATEST FORECAST...STATEMENTS...AND POSSIBLE WARNINGS.
Special weather statement, Feb 28, 4:53 AM CST, 1 hour 11 minutes before
TXZ163-164-176>179-195>200-210>214-226-227-235>238-282200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 415 AM CST WED FEB 28 2001 ...HEAVY RAIN EVENT POSSIBLE FOR SOUTHEAST TEXAS LATE THURSDAY THROUGH SATURDAY... A COLD FRONT WILL MOVE ACROSS SOUTHEAST TEXAS THIS MORNING AND SLOW DOWN NEAR THE COAST. THE FRONT IS EXPECTED TO SLOWLY MOVE TO THE COASTAL WATERS BY THURSDAY. MEANWHILE...OVERRUNNING MOIST GULF AIR WILL CONTINUE TO GIVE OUR REGION A CHANCE RAIN THE NEXT SEVERAL DAYS. AN APPROACHING UPPER LEVEL DISTURBANCE WILL INCREASE RAIN CHANCES LATE THURSDAY THROUGH SATURDAY. THE SOIL SOAKED BY PREVIOUS RAINS WILL CAUSE HEAVY RAINFALL TO READILY RUNOFF INTO LOW LYING AREAS. THIS MAY PRODUCE FLOODING NEAR RIVERS...STREAMS AND OTHER LOW LYING AREAS. ALTHOUGH EXACT AMOUNTS ARE DIFFICULT TO DETERMINE AT THIS TIME... RAINFALL TOTALS THROUGH SATURDAY WILL PROBABLY BE 1 TO 3 INCHES WITH HIGHER LOCALIZED AMOUNTS. LATER UPDATES TO THIS STATEMENT WILL PROVIDE MORE DETAILS AS THIS WEATHER SITUATION EVOLVES. RESIDENTS OF SOUTHEAST TEXAS SHOULD KEEP ABREAST OF THIS SITUATION BY LISTENING TO NOAA WEATHER RADIO OR OTHER MEDIA SOURCES. STAY TUNED TO NOAA WEATHER RADIO OR OTHER NEWS SOURCES FOR THE LATEST FORECAST...STATEMENTS...AND POSSIBLE WARNINGS.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 28, 5:43 AM CST | Severe Thunderstorm Warning | HGX | Liberty | 62 min |
Nearby
Tornado Warnings in Texas, 2001Every tornado warning in 2001Tornadoes 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.