Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 71, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at May 4, 2001, 5:35 PM CDT for McCulloch County, Texas. It was in force for 40 min. 1 report 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
- May 4, 2001, 5:35 PM CDT (22:35 UTC)
- Expired
- May 4, 2001, 6:15 PM CDT
- In force
- 40 min
- Issued by
- NWS San Angelo, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County McCulloch County, TX
The radar
The San Angelo radar (KSJT), 106 km from the middle of the area, began a volume at 22:38 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 4, 5:45 PM CDT | Thunderstorm Wind | Brady, TX | High winds damaged a house, destroyed a shed, and downed a power pole as a storm passed north of Brady. |
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 |
|---|---|---|---|
| May 4, 4:30 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 10.6 hours before the alert went out and 238 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
- 947 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 590 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 232 m²/s²
- 0-3 km storm-relative helicity
- 318 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 11.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS54 KSJT 042235
SVRSJT
TXC307-042315-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
535 PM CDT FRI MAY 4 2001
THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
MCCULLOCH COUNTY IN NORTH CENTRAL TEXAS
* UNTIL 615 PM CDT
* AT 533 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 10 MILES WEST OF BRADY...MOVING NORTHEAST AT 35
MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
BRADY...PEAR VALLEY AT 545 PM CDT
LOHN AT 555 PM CDT
ROCHELLE AT 600 PM CDT
PLACID AT 610 PM CDT
MERCURY AT 615 PM CDT
STRONG AND DAMAGING WINDS WILL OCCUR SEVERAL MILES AHEAD OF THE MAIN
STORM. EXPECT A SUDDEN INCREASE IN WIND SPEED...AND SEEK SHELTER IN A
STURDY BUILDING AND AWAY FROM WINDOWS BEFORE THE RAIN OR THUNDER
BEGINS.
LAT...LON 3112 9960 3096 9956 3099 9921 3141 9911
3140p 9949What 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 May 4, 5:17 PM CDT, 18 minutes earlier.
Area forecast discussion, May 4, 5:17 PM CDT, 18 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 517 PM CDT FRI MAY 4 2001 WILL UPDATE ZONES AGAIN AND REMOVE THE TORNADO WATCH FROM THE BIG COUNTRY AND THE NORTHERN CONCHO VALLEY. THE SEVERE WEATHER THREAT HAS PUSHED EAST OF THIS AREA. .SJT...NONE. 21
In the hours before
Special weather statement, May 4, 1:30 PM CDT, 4 hours 5 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140- 154-155-168>170-042300- WEST CENTRAL TEXAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN ANGELO TX 130 PM CDT FRI MAY 4 2001 ...THERE IS SLIGHT RISK OF SEVERE THUNDERSTORMS AND ISOLATED TORNADOES ACROSS WEST CENTRAL TEXAS THIS AFTERNOON AND EVENING... THUNDERSTORMS WERE DEVELOPING ALONG A DRYLINE...FROM NEAR OZONA TO BIG LAKE TO COLORADO CITY TO ROBY...EARLY THIS AFTERNOON. THIS LINE OF STORMS WILL MOVE EAST ACROSS WEST CENTRAL TEXAS THIS AFTERNOON AND EARLY EVENING. WHILE LARGE HAIL IS THE PRIMARY THREAT...THERE IS SUFFICIENT SHEAR THROUGHOUT THE ATMOSPHERE FOR THE DEVELOPMENT OF ISOLATED TORNADOES AS WELL. AREAS ALONG AND NORTH OF A STERLING CITY...BALLINGER ...BROWNWOOD LINE HAVE THE HIGHER CHANCE OF DEVELOPING TORNADOES. LOCALLY HEAVY RAINFALL IS ALSO A POTENTIAL THREAT. SOME AREAS COULD SEE ADDITIONAL AMOUNTS OF 1 TO 3 INCHES. AREAS IN THE BIG COUNTRY... ...PARTICULARLY NEAR ABILENE HAVE HAD UP TO 3 INCHES TODAY. MOTORISTS SHOULD LOOKOUT FOR FLOODED LOW WATER CROSSINGS AND PONDING ON ROADWAYS. SPOTTER ACTIVATION MAY BE REQUIRED. FOR THE SOUTHWEST TEXAS AND SOUTHEAST NEW MEXICO OUTLOOK SEE PRODUCT LBBSPSMAF. FOR THE SOUTH PLAINS OUTLOOK SEE PRODUCT LBBSPSLBB. FOR THE CENTRAL OKLAHOMA OUTLOOK SEE PRODUCT OKCSPSOKC. FOR THE NORTH TEXAS OUTLOOK SEE PRODUCT FTWSPSFTW. FOR THE SOUTH CENTRAL TEXAS OUTLOOK SEE PRODUCT SATSPSSAT.
Special weather statement, May 4, 5:13 PM CDT, 22 minutes before
TXZ049-054-064>066-098-099-113-114-127-042300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 513 PM CDT FRI MAY 4 2001 THE FOLLOWING COUNTIES IN WEST CENTRAL TEXAS HAVE BEEN CLEARED FROM THE TORNADO WATCH... HASKELL...THROCKMORTON...FISHER...JONES...SHACKELFORD...NOLAN... TAYLOR...CALLAHAN...STERLING...COKE AND RUNNELS. THE STRONGEST THUNDERSTORMS HAVE MOVED EAST OF THE AREA. SEVERE WEATHER IS NO LONGER EXPECTED OVER THE BIG COUNTRY AND NORTHERN CONCHO VALLEY. 14
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 3:19 PM CDT | Flash Flood Warning | SJT | Jones, Taylor | 4 hr |
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; radar from the NEXRAD Level II archive.