Alert archive / Texas / Tornado Warnings in 2001
Tornado Warning 2, NWS San Angelo, TX
NWS San Angelo, TX issued this tornado warning at Apr 10, 2001, 10:20 PM CDT for Sutton County, Texas. It was in force for 40 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
- Apr 10, 2001, 10:20 PM CDT (03:20 UTC)
- Expired
- Apr 10, 2001, 11:00 PM CDT
- In force
- 40 min
- Issued by
- NWS San Angelo, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Sutton County, TX
The radar
The San Angelo radar (KSJT), 90 km from the middle of the area, began a volume at 03:21 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 |
|---|---|---|---|
| Apr 10, 8:45 PM CDT | Tornado Watch | SPC | 3 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 3.3 hours before the alert went out and 137 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
- 2079 J/kg
- Mixed-layer CIN
- -141 J/kg
- Mixed-layer LCL
- 1691 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 129 m²/s²
- 0-3 km storm-relative helicity
- 259 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS54 KSJT 110321 TORSJT TXC435-110400- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SAN ANGELO TX 1020 PM CDT TUE APR 10 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * TORNADO WARNING FOR... SUTTON COUNTY IN SOUTHWEST TEXAS * UNTIL 1100 PM CDT * AT 1016 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A DEVELOPING TORNADO OVER CENTRAL SUTTON COUNTY...OR ABOUT 7 MILES SOUTHEAST OF SONORA...MOVING NORTHEAST AT 35 MPH. IN ADDITION TO THE THREAT OF A TORNADO...LARGE HAIL AND DAMAGING WINDS CAN ALSO BE EXPECTED WITH THIS STORM. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. LAT...LON 3053 10069 3040 10054 3067 10017 3069 10046
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 San Angelo, TX wrote its last area forecast discussion before this tornado warning went out at Apr 10, 3:16 PM CDT, 7 hours 4 minutes earlier.
Area forecast discussion, Apr 10, 3:16 PM CDT, 7 hours 4 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 316 PM CDT TUE APR 10 2001 INGREDIENTS FOR A DRY LINE EVENT ARE BEGINNING TO TAKE SHAPE. THE LATEST SURFACE ANALYSIS PLACES THE DRY LINE NEAR A TCC-HOB-MRF LINE. FURTHER WEST...THE PACIFIC FRONT APPEARS TO BE OVER WESTERN NM WHILE THE UPPER LOW IS MOVING EASTWARD INTO AZ. STILL EXPECTING SURFACE CYCLOGENESIS TO TAKE PLACE ALONG THE LEE OF THE ROCKIES. THIS WILL ACT TO KEEP THE LOWER LEVEL WIND FLOW FROM THE SOUTH/SOUTHEAST THROUGH THE EVENING. MAY ACTUALLY SEE THE DRY LINE MOVE A LITTLE FURTHER WEST BEFORE THE PACIFIC FRONT AND UPPER LEVEL EFFECTS DRIVE THE DRY LINE EASTWARD THIS EVENING. STRONG INSTABILITIES...DESPITE TODAYS CLOUD COVER...LOOK AS THOUGH THEY WILL STILL BE IN PLACE. THE AVN SOLUTION LOOKS A BIT OUT OF WACK AS 80 DEGREE TEMPS AND MID 50 DEWPOINTS ARE UNLIKELY AT 06Z WHEN THE DRY LINE SLAMS THROUGH. IN CONTRAST...THE ETA HAS A BETTER HANDLE WITH A MORE BELIEVABLE LOW 70S/LOW 60S SCENARIO. WITH 700 MB TEMPERATURES SUPPORTING A WEAK CAP...THE STRONG DRY LINE CONVERGENCE SHOULD BE ABLE TO TAKE ADVANTAGE OF 1500 PLUS CAPES AND A WELL PRONOUNCED THETA-E RIDGE WHICH NOW SHOWS GOOD VERTICAL DEPTH AND A CONTINUING DISPLAY OF A TIGHT GRADIENT ON THE WESTWARD SIDE. CURRENT WIND SPEEDS ARE RUNNING IN THE 15 TO 25 CATEGORY AND AS THE SURFACE LOW INTENSIFIES THIS EVENING...WIND SPEEDS WILL LIKELY INCREASE TO THE 20 TO 30 MPH LEVEL. THIS WILL EASILY CREATE WIND DAMAGE POTENTIAL AS CONVECTIVE DEVELOPMENT TAPS INTO EVEN STRONGER WINDS ABOVE THE SURFACE. WINDY CONDITIONS ARE EXPECTED AGAIN ON WEDNESDAY AS A GOOD DEAL OF MIXING AND SUBSIDENCE EXISTS. WITH TEMPERATURES REACHING THE 75 TO 80 DEGREE MARK AND DEWPOINTS AROUND 15 TO 20 DEGREES...BONE DRY AIR WITH RELATIVE HUMIDITIES IN THE TEENS WILL BE IN PLACE. THEREFORE A FIRE WEATHER WATCH HAS BEEN ISSUED FOR ALL ZONES FOR WEDNESDAY. ON SATURDAY...THE DRY LINE RETURNS WESTWARD AS WEAK IMPULSES WITHIN THE SOUTHWEST FLOW ALOFT MOVES ACROSS WEST CENTRAL TEXAS. WILL LEAVE POPS OUT FOR NOW BUT SATURDAY WILL NEED TO BE MONITORED. ON TUESDAY...THE MRF BRINGS A FRONTAL BOUNDARY DOWN ALONG WITH APPRECIABLE INSTABILITIES. WILL REFRAIN FROM INTRODUCING POPS AND WAIT FOR LATER MODEL RUNS TO VERIFY THE PRECIP POTENTIAL. ABI 054/077/045/083 7000 SJT 055/078/044/086 5000 JCT 060/078/044/085 4-0- U .SJT...FIRE WEATHER WATCH FOR ALL ZONES ON WEDNESDAY. 21
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 9:33 PM CDT | Severe Thunderstorm Warning | SJT | Fisher, Jones | 42 min |
| Apr 10, 9:49 PM CDT | Severe Thunderstorm Warning | SJT | Irion | 41 min |
| Apr 10, 9:53 PM CDT | Severe Thunderstorm Warning | SJT | Sutton | 67 min |
| Apr 10, 10:15 PM CDT | Severe Thunderstorm Warning | SJT | Haskell | 45 min |
| Apr 10, 10:42 PM CDT | Severe Thunderstorm Warning | SJT | Irion | 48 min |
| Apr 10, 10:50 PM CDT | Tornado Warning | SJT | Kimble, Menard | 55 min |
| Apr 10, 10:52 PM CDT | Severe Thunderstorm Warning | SJT | Tom Green | 38 min |
| Apr 10, 11:32 PM CDT | Severe Thunderstorm Warning | SJT | Concho, Runnels | 58 min |
| Apr 11, 12:04 AM CDT | Severe Thunderstorm Warning | SJT | Coleman | 56 min |
| Apr 11, 12:24 AM CDT | Severe Thunderstorm Warning | SJT | Menard, Schleicher | 66 min |
| Apr 11, 1:13 AM CDT | Severe Thunderstorm Warning | SJT | Runnels | 62 min |
| Apr 11, 2:59 AM CDT | Severe Thunderstorm Warning | SJT | McCulloch | 31 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.