Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 145, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 28, 2021, 7:01 PM CDT for 6 counties in Texas. It was in force for 59 min. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 28, 2021, 7:01 PM CDT (00:01 UTC)
- Expired
- May 28, 2021, 8:00 PM CDT
- In force
- 59 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Bastrop County, TX, Caldwell County, TX, Hays County, TX, Lee County, TX, Travis County, TX, Williamson County, TX
The radar
The Austin/San Antonio radar (KEWX), 66 km from the middle of the area, began a volume at 00:02 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 28, 7:11 PM CDT | TSTM WND GST 60 | 2 Sw Bergstrom Internat, TX | ASOS STATION KAUS AUSTIN-BERGSTROM INTL ARPT. |
| May 28, 7:14 PM CDT | TSTM WND GST 60 | 6 S Wells Branch, TX | CORRECTS PREVIOUS NON-TSTM WND GST REPORT FROM 6 S WELLS BRANCH. ESTIMATED 60 MPH GUSTS AT RUNDBERG AND I-35, ABOUT AN INCH OF WATER ON I-35 REPORTED AS WELL WITH TORRENTIAL RAINFALL. |
| May 28, 7:14 PM CDT | NON-TSTM WND GST 60 | 6 S Wells Branch, TX | ESTIMATED 60 MPH GUSTS AT RUNDBERG AND I-35, ABOUT AN INCH OF WATER ON I-35 REPORTED AS WELL WITH TORRENTIAL RAINFALL. |
| May 28, 7:35 PM CDT | TSTM WND DMG | 7 Ene Dale, TX | REPORT OF THE ROOF TORN OFF AT THE RED ROCK GENERAL STORE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 28, 6:20 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 0.0 hours before the alert went out and 265 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
- 2506 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 712 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.1
The text
As transmitted.
585
WUUS54 KEWX 290001
SVREWX
TXC021-055-209-287-453-491-290100-
/O.NEW.KEWX.SV.W.0145.210529T0001Z-210529T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
701 PM CDT Fri May 28 2021
The National Weather Service in Austin San Antonio has issued a
* Severe Thunderstorm Warning for...
Southeastern Williamson County in south central Texas...
Central Caldwell County in south central Texas...
East central Hays County in south central Texas...
Travis County in south central Texas...
Bastrop County in south central Texas...
Northwestern Lee County in south central Texas...
* Until 800 PM CDT.
* At 701 PM CDT, severe thunderstorms were located along a line
extending from near Round Rock to near Austin to Onion Creek,
moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Austin, Round Rock, Cedar Park, Georgetown, Pflugerville, Kyle,
Buda, Lockhart, Elgin, Bastrop, Lexington, Tanglewood Forest,
Austin Bergstrom Int Airport, Windemere, Anderson Mill, Hutto,
Manor, West Lake Hills, Rollingwood and Uhland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 2969 9748 3016 9800 3059 9771 3040 9698
TIME...MOT...LOC 0001Z 287DEG 26KT 3051 9770 3033 9770 3012 9777
HAIL...1.00IN
WIND...60MPH
$$
CP2 follow-up statements
103
WWUS54 KEWX 290018
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
718 PM CDT Fri May 28 2021
TXC021-055-209-287-453-491-290100-
/O.CON.KEWX.SV.W.0145.000000T0000Z-210529T0100Z/
Williamson TX-Caldwell TX-Hays TX-Travis TX-Bastrop TX-Lee TX-
718 PM CDT Fri May 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR SOUTHEASTERN WILLIAMSON...CENTRAL CALDWELL...EAST CENTRAL HAYS...
TRAVIS...BASTROP AND NORTHWESTERN LEE COUNTIES...
At 718 PM CDT, severe thunderstorms were located along a line
extending from near Pflugerville to near Manor to near Mustang Ridge,
moving east at 35 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Austin, Round Rock, Cedar Park, Georgetown, Pflugerville, Kyle, Buda,
Lockhart, Elgin, Bastrop, Lexington, Tanglewood Forest, Austin
Bergstrom Int Airport, Windemere, Anderson Mill, Hutto, Manor, West
Lake Hills, Rollingwood and Uhland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2969 9748 3016 9800 3059 9771 3040 9698
TIME...MOT...LOC 0018Z 287DEG 29KT 3046 9754 3028 9754 3007 9761
HAIL...1.75IN
WIND...60MPH
$$
CP053
WWUS54 KEWX 290038
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
738 PM CDT Fri May 28 2021
TXC209-290048-
/O.CAN.KEWX.SV.W.0145.000000T0000Z-210529T0100Z/
Hays TX-
738 PM CDT Fri May 28 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL HAYS COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
south central Texas.
LAT...LON 2969 9748 2996 9778 3002 9771 3008 9778
3059 9771 3040 9698
TIME...MOT...LOC 0038Z 269DEG 26KT 3043 9738 3025 9738 2991 9747
$$
TXC021-055-287-453-491-290100-
/O.CON.KEWX.SV.W.0145.000000T0000Z-210529T0100Z/
Williamson TX-Caldwell TX-Travis TX-Bastrop TX-Lee TX-
738 PM CDT Fri May 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR SOUTHEASTERN WILLIAMSON...CENTRAL CALDWELL...EASTERN TRAVIS...
BASTROP AND NORTHWESTERN LEE COUNTIES...
At 738 PM CDT, severe thunderstorms were located along a line
extending from near Coupland to 6 miles northwest of Camp Swift to 10
miles west of Rosanky, moving east at 30 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Austin, Round Rock, Georgetown, Pflugerville, Lockhart, Elgin,
Bastrop, Lexington, Austin Bergstrom Int Airport, Windemere, Hutto,
Manor, Uhland, Mustang Ridge, Niederwald, Fedor, Camp Swift, Circle
D-KC Estates, Cedar Creek and Paige.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2969 9748 2996 9778 3002 9771 3008 9778
3059 9771 3040 9698
TIME...MOT...LOC 0038Z 269DEG 26KT 3043 9738 3025 9738 2991 9747
HAIL...1.50IN
WIND...60MPH
$$
CPThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 7:03 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Kerr, Real | 57 min |
| May 28, 7:44 PM CDT | Tornado Warning | EWX | Bastrop, Caldwell, Fayette | 31 min |
| May 28, 7:48 PM CDT | Areal Flood Advisory | EWX | Bastrop, Caldwell, Travis | 3 hr |
| May 28, 7:49 PM CDT | Areal Flood Advisory | EWX | Blanco, Gillespie | 3 hr |
| May 28, 7:49 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Edwards, Gillespie, Kerr, Real | 56 min |
| May 28, 7:56 PM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Caldwell, Fayette, Gonzales, Lee | 64 min |
| May 28, 8:20 PM CDT | Areal Flood Advisory | EWX | Bandera, Gillespie, Kerr | 3 hr |
| May 28, 8:24 PM CDT | Flash Flood Warning | EWX | Bastrop, Travis | 3 hr |
| May 28, 8:25 PM CDT | Severe Thunderstorm Warning | EWX | Caldwell, Comal, Guadalupe, Hays | 30 min |
| May 28, 8:28 PM CDT | Tornado Warning | EWX | Fayette | 32 min |
| May 28, 8:38 PM CDT | Severe Thunderstorm Warning | EWX | Fayette, Lavaca, Lee | 52 min |
| May 28, 8:44 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Bexar, Blanco, Comal, Kendall, Kerr and 3 more | 61 min |
| May 28, 8:48 PM CDT | Areal Flood Advisory | EWX | Atascosa, Bandera, Bexar, Comal, Kendall, Kerr and 1 more | 3 hr |
| May 28, 8:58 PM CDT | Areal Flood Advisory | EWX | Bastrop, Fayette, Lee | 5 hr |
| May 28, 8:58 PM CDT | Special Weather Statement | EWX | Gonzales, Guadalupe | 47 min |
| May 28, 9:00 PM CDT | Areal Flood Advisory | EWX | Caldwell, Comal, Guadalupe, Hays | 3 hr |
| May 28, 9:34 PM CDT | Severe Thunderstorm Warning | EWX | Bexar, Caldwell, Comal, Gonzales, Guadalupe, Hays and 2 more | 56 min |
| May 28, 9:42 PM CDT | Flash Flood Warning | EWX | Bexar, Comal, Guadalupe | 3 hr |
| May 28, 10:23 PM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Bastrop, Caldwell, DeWitt, Fayette, Gonzales and 5 more | 21 min |
| May 28, 10:47 PM CDT | Special Weather Statement | EWX | DeWitt, Gonzales, Karnes, Lavaca | 58 min |
| May 28, 10:50 PM CDT | River Flood Warning | EWX | Williamson | 8 hr |
| May 28, 11:19 PM CDT | River Flood Warning | EWX | Blanco | 7 hr |
| May 28, 11:56 PM CDT | Special Weather Statement | EWX | Bandera, Kendall, Kerr | 34 min |
| May 29, 12:09 AM CDT | Special Weather Statement | EWX | Gillespie, Kerr | 36 min |
| May 29, 12:28 AM CDT | Areal Flood Advisory | EWX | Bexar, Comal, Guadalupe | 3 hr |
| May 29, 12:41 AM CDT | Special Weather Statement | EWX | Bandera, Kendall, Kerr | 34 min |
| May 29, 1:11 AM CDT | Special Weather Statement | EWX | Comal, Kendall | 49 min |
| May 29, 1:48 AM CDT | Special Weather Statement | EWX | Gonzales, Guadalupe | 57 min |
| May 29, 2:11 AM CDT | Special Weather Statement | EWX | Val Verde | 49 min |
| May 29, 2:21 AM CDT | Severe Thunderstorm Warning | EWX | Edwards, Val Verde | 54 min |
| May 29, 3:16 AM CDT | Severe Thunderstorm Warning | EWX | Edwards, Kinney, Maverick, Val Verde | 89 min |
| May 29, 3:20 AM CDT | Severe Thunderstorm Warning | EWX | Edwards, Kinney, Real, Val Verde | 70 min |
| May 29, 4:38 AM CDT | Special Weather Statement | EWX | Kinney, Uvalde | 52 min |
| May 29, 4:46 AM CDT | Severe Thunderstorm Warning | EWX | Bandera, Medina, Real, Uvalde | 27 min |
| May 29, 5:27 AM CDT | Special Weather Statement | EWX | Maverick, Zavala | 48 min |
| May 29, 5:35 AM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Maverick, Zavala | 55 min |
| May 29, 5:54 AM CDT | Special Weather Statement | EWX | Atascosa, Frio, Medina | 51 min |
| May 29, 6:28 AM CDT | Areal Flood Advisory | EWX | Bandera, Edwards, Kerr, Real | 3 hr |
Nearby
Severe Thunderstorm Warnings in Texas, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.