Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 108, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 9, 2021, 7:47 PM CDT for Blanco County, Gillespie County, Kendall County, Texas. It was in force for 58 min. 1 report 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 9, 2021, 7:47 PM CDT (00:47 UTC)
- Expired
- May 9, 2021, 8:45 PM CDT
- In force
- 58 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Hail
- 1.75 in
- Wind
- 60.0 mph
Counties Blanco County, TX, Gillespie County, TX, Kendall County, TX
The radar
The Austin/San Antonio radar (KEWX), 69 km from the middle of the area, began a volume at 00:50 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 9, 8:04 PM CDT | HAIL 1.75 | 1 E Hye, TX | REPORT FROM MPING. |
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 9, 3:01 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 0.8 hours before the alert went out and 249 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 5144 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- -26 m²/s²
- 0-3 km storm-relative helicity
- -34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
988
WUUS54 KEWX 100047
SVREWX
TXC031-171-259-100145-
/O.NEW.KEWX.SV.W.0108.210510T0047Z-210510T0145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
747 PM CDT Sun May 9 2021
The National Weather Service in Austin San Antonio has issued a
* Severe Thunderstorm Warning for...
Western Blanco County in south central Texas...
Southeastern Gillespie County in south central Texas...
Northeastern Kendall County in south central Texas...
* Until 845 PM CDT.
* At 745 PM CDT, a severe thunderstorm was located near Stonewall, or
10 miles east of Fredericksburg, moving southeast at 25 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Trained weather spotters.
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. This storm has a
history of producing large hail with damage to property.
* Locations impacted include...
Blanco, Johnson City, Stonewall, Flugrath, Luckenbach, Sandy, Rocky
Hill, LBJ State Park, Rocky Creek, Hye, Blumenthal, Albert and LBJ
National Historical Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows!
&&
LAT...LON 3020 9823 3015 9825 2999 9859 3025 9884
3042 9855
TIME...MOT...LOC 0045Z 321DEG 20KT 3029 9871
HAIL...1.75IN
WIND...60MPH
$$
MORRIS/BF2 follow-up statements
203
WWUS54 KEWX 100121
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
821 PM CDT Sun May 9 2021
TXC171-259-100130-
/O.CAN.KEWX.SV.W.0108.000000T0000Z-210510T0145Z/
Gillespie TX-Kendall TX-
821 PM CDT Sun May 9 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GILLESPIE AND
NORTHEASTERN KENDALL COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
south central Texas.
LAT...LON 3020 9823 3015 9825 3015 9826 3003 9850
3014 9859 3040 9859 3042 9855
TIME...MOT...LOC 0120Z 321DEG 20KT 3014 9857
$$
TXC031-100145-
/O.CON.KEWX.SV.W.0108.000000T0000Z-210510T0145Z/
Blanco TX-
821 PM CDT Sun May 9 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR WESTERN BLANCO COUNTY...
At 820 PM CDT, a severe thunderstorm was located near Flugrath, or 9
miles west of Blanco, moving southeast at 25 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...
Blanco, Johnson City, Rocky Creek, Flugrath, Hye, Sandy and LBJ State
Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3020 9823 3015 9825 3015 9826 3003 9850
3014 9859 3040 9859 3042 9855
TIME...MOT...LOC 0120Z 321DEG 20KT 3014 9857
HAIL...1.50IN
WIND...60MPH
$$
MORRIS/BF172
WWUS54 KEWX 100141
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
841 PM CDT Sun May 9 2021
TXC031-100151-
/O.EXP.KEWX.SV.W.0108.000000T0000Z-210510T0145Z/
Blanco TX-
841 PM CDT Sun May 9 2021
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN BLANCO COUNTY WILL
EXPIRE AT 845 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
south central Texas.
LAT...LON 3020 9823 3015 9825 3015 9826 3003 9850
3014 9859 3040 9859 3042 9855
TIME...MOT...LOC 0141Z 321DEG 20KT 3005 9849
$$
BFThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 7:08 PM CDT | Severe Thunderstorm Warning | EWX | Blanco, Gillespie, Llano | 67 min |
| May 9, 9:53 PM CDT | Special Weather Statement | EWX | Gillespie | 52 min |
| May 10, 3:19 PM CDT | Special Weather Statement | EWX | Real | 41 min |
| May 10, 3:44 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Real | 46 min |
| May 10, 4:21 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Kerr, Real | 37 min |
| May 10, 5:56 PM CDT | Special Weather Statement | EWX | Edwards | 49 min |
| May 10, 6:00 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Val Verde | 60 min |
| May 10, 6:17 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Val Verde | 58 min |
| May 10, 6:49 PM CDT | Special Weather Statement | EWX | Dimmit, Maverick | 41 min |
| May 10, 6:59 PM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Maverick, Zavala | 61 min |
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.