Alert archive / Texas / Special Weather Statements in 2021
Special Weather Statement, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this special weather statement at Oct 10, 2021, 10:30 PM CDT for Burnet County, Texas. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Oct 10, 2021, 10:30 PM CDT (03:30 UTC)
- Expired
- Oct 10, 2021, 11:15 PM CDT
- In force
- 45 min
- Issued by
- NWS Austin/San Antonio, TX
- Hail
- 0.50 in
- Wind
- 50
County Burnet County, TX
The radar
The Ft Hood radar (KGRK), 71 km from the middle of the area, began a volume at 03:30 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 nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 3.5 hours before the alert went out and 241 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
- 1814 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 1524 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 253 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 11.2
The text
As transmitted.
862
WWUS84 KEWX 110330
SPSEWX
Special Weather Statement
National Weather Service Austin/San Antonio TX
1030 PM CDT Sun Oct 10 2021
TXZ172-173-192-110415-
Williamson TX-Burnet TX-Travis TX-
1030 PM CDT Sun Oct 10 2021
...Strong thunderstorms will impact portions of northwestern
Williamson, northwestern Travis and Burnet Counties through 1115 PM
CDT...
At 1029 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Watson to Longhorn Cavern State Park.
Movement was east at 30 mph.
HAZARD...Wind gusts up to 50 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Georgetown, Burnet, Marble Falls, Kingsland, Bertram, Serenada,
Buchanan Dam, Leander, Granite Shoals, Liberty Hill, Jarrell,
Florence, Highland Haven, Inks Lake State Park, Watson, Lake Victor,
Joppa, Andice, Shady Grove and Oatmeal.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 3091 9783 3087 9763 3084 9754 3050 9791
3061 9841 3064 9842 3067 9844 3068 9840
3070 9842 3074 9837 3075 9840 3103 9817
3103 9791
TIME...MOT...LOC 0329Z 273DEG 28KT 3100 9799 3070 9835
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH
$$
BRADYThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 10, 9:45 PM CDT | Special Weather Statement | EWX | Burnet, Gillespie, Llano | 45 min |
| Oct 10, 10:21 PM CDT | Special Weather Statement | EWX | Bandera, Blanco, Gillespie, Kerr, Real | 54 min |
| Oct 10, 11:43 PM CDT | Special Weather Statement | EWX | Comal, Kendall | 47 min |
| Oct 11, 12:51 AM CDT | Special Weather Statement | EWX | Bastrop, Bexar, Caldwell, Comal, Fayette, Gonzales and 2 more | 39 min |
Nearby
Special Weather Statements in Texas, 2021Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.