Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 4, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Feb 8, 2001, 11:19 PM CST for Callahan County, Texas. It was in force for 56 min. 3 reports came from 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, with what was reported inside it.
The facts
- Issued
- Feb 8, 2001, 11:19 PM CST (05:19 UTC)
- Expired
- Feb 9, 2001, 12:15 AM CST
- In force
- 56 min
- Issued by
- NWS San Angelo, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Callahan County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 8, 11:50 PM CST | Thunderstorm Wind 52 E | Albany, TX | Winds estimated at 60 mph in Albany. |
| Feb 8, 11:57 PM CST | Thunderstorm Wind 52 E | Woodson, TX | Winds estimated at 60 mph. |
| Feb 9, 12:02 AM CST | Thunderstorm Wind 52 E | Cottonwood, TX | Winds estimated at 60 mph downed tree limbs in the southeast section of Callahan County. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 8, 9:00 PM CST | Severe Thunderstorm Watch | SPC | 6 hr |
| Feb 8, 11:00 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 5.3 hours before the alert went out and 188 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
- 553 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 793 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 243 m²/s²
- 0-3 km storm-relative helicity
- 314 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 5.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KSJT 090520 SVRSJT TXC059-417-447-090615- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SAN ANGELO TX 1119 PM CST THU FEB 8 2001 THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CALLAHAN COUNTY IN NORTH CENTRAL TEXAS THROCKMORTON COUNTY IN NORTH CENTRAL TEXAS SHACKELFORD COUNTY IN NORTH CENTRAL TEXAS * UNTIL 1215 AM CST * AT 1113 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 19 MILES NORTHWEST OF THROCKMORTON TO 29 MILES SOUTHWEST OF EULA. * SEVERE THUNDERSTORMS WILL BE NEAR... EULA...THROCKMORTON AT MIDNIGHT CST CLYDE...FORT GRIFFIN AT 1205 AM CST BAIRD...WOODSON...ALBANY AT 1215 AM CST DAMAGING WINS AND VERY HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY BUILDING AWAY FROOM CREEK BEDS AND FLOOD PRONE AREAS...AND STAY AWAY FROM WINDOWS. LAT...LON 3338 9939 3215 9961 3212 9914 3333 9900
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 San Angelo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 8, 1:56 PM CST, 9 hours 23 minutes earlier.
Area forecast discussion, Feb 8, 1:56 PM CST, 9 hours 23 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 156 PM CST THU FEB 8 2001 DAMAGING WIND/LARGE HAIL EVENT EXPECTED TONIGHT ACROSS WEST CENTRAL TEXAS. SEE SJT THUNDERSTORM OUTLOOK OR SPSSJT FOR DETAILS. LOW LEVEL MOISTURE HAS INCREASED DRAMATICALLY IN THE PAST 24 HRS. SURFACE DEWPOINTS ARE NOW AROUND 60 F WITH 850 MB DEWPOINTS NEAR 10 C. INFLUX OF MOISTURE CONTRIBUTING TO CAPES OF 800-1600 J/KG...IN SPITE OF A DENSE CIRRUS CANOPY. WITH UNSEASONABLY HIGH PRECIPITABLE WATER VALUES...RAINFALL COULD EXCEED ONE INCH LOCALLY TONIGHT. PER THE 12Z MESOETA...DRYLINE/PACIFIC COLD FRONT TO REACH SJT AND ABI AROUND 9 PM...THEN EXIT OUR EASTERN COUNTIES BY 2AM. WE/LL HIGHLIGHT SEVERE THREAT IN THE 4 PM PACKAGE. NOT ENOUGH ADJECTIVES TO DESCRIBE DEGREE OF LIFT. MESOETA 700 MB OMEGA FIELDS TELL THE STORY HERE. NUFF SAID. ON FRIDAY...SOME WRAP AROUND CLOUDINESS FORESEEN ACROSS THE BIG COUNTRY. OTHERWISE...MUCH COOLER AS COLD AIR ADVECTION DOMINATE IN LOW LEVELS. NORTH WINDS TO PUT A CHILL IN THE AIR. COLD FRIDAY NIGHT AS BOUNDARY LAYER DECOUPLES. STILL RATHER COOL ON SATURDAY AS MODIFIED ARCTIC AIRMASS SLOW TO ERODE. IN THE EXTENDED...ZONAL FLOW TO RESULT IN MILD CONDITIONS SUNDAY THROUGH THURSDAY. ABI 042/052/026/049 7000 SJT 045/057/025/053 6000 JCT 048/062/029/056 8000 .SJT...LAKE CAUTION. 17
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 8, 9:30 PM CST | Severe Thunderstorm Warning | SJT | Fisher | 60 min |
| Feb 8, 10:45 PM CST | Severe Thunderstorm Warning | SJT | Jones, Taylor | 60 min |
| Feb 8, 11:19 PM CST | Severe Thunderstorm Warning | SJT | Shackelford, Throckmorton | 56 min |
| Feb 8, 11:23 PM CST | Severe Thunderstorm Warning | SJT | Coleman, Runnels | 67 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2001Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.