Alert archive / Texas / Special Weather Statements in 2018
Special Weather Statement, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this special weather statement at Apr 7, 2018, 12:16 AM CDT for Bastrop County, Texas. It was in force for 44 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
- Apr 7, 2018, 12:16 AM CDT (05:16 UTC)
- Expired
- Apr 7, 2018, 1:00 AM CDT
- In force
- 44 min
- Issued by
- NWS Austin/San Antonio, TX
County Bastrop County, TX
The radar
The Ft Hood radar (KGRK), 49 km from the middle of the area, began a volume at 05:20 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, 5.3 hours before the alert went out and 282 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
- 690 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 1896 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -40 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.2
The text
As transmitted.
027
WWUS84 KEWX 070516
SPSEWX
Special Weather Statement
National Weather Service Austin/San Antonio TX
1216 AM CDT SAT APR 7 2018
TXZ192-193-070600-
Bastrop TX-Travis TX-
1216 AM CDT SAT APR 7 2018
...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL TRAVIS AND
NORTHEASTERN BASTROP COUNTIES UNTIL 100 AM CDT...
At 1216 AM CDT, Doppler radar was tracking a strong thunderstorm over
Elgin, moving southeast at 35 mph.
Nickel size hail and winds in excess of 40 mph will be possible with
this storm.
Locations impacted include...
Elgin, Bastrop, Manor, Camp Swift, Paige, Circle D-KC Estates,
Phelan, Bastrop State Park, McDade, Butler and Cedar Hills.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3005 9731 3040 9752 3044 9739 3042 9738
3042 9736 3038 9728 3025 9708 3021 9707
TIME...MOT...LOC 0516Z 317DEG 29KT 3037 9741
$$
PLATTThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 7:29 PM CDT | Special Weather Statement | EWX | Burnet | 46 min |
| Apr 6, 7:34 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Williamson | 41 min |
| Apr 6, 7:50 PM CDT | Tornado Warning | EWX | Burnet | 25 min |
| Apr 6, 8:16 PM CDT | Special Weather Statement | EWX | Williamson | 44 min |
| Apr 6, 8:51 PM CDT | Special Weather Statement | EWX | Williamson | 24 min |
| Apr 6, 11:12 PM CDT | Special Weather Statement | EWX | Williamson | 48 min |
| Apr 6, 11:32 PM CDT | Severe Thunderstorm Warning | EWX | Travis, Williamson | 43 min |
Nearby
Special Weather Statements in Texas, 2018Every special weather statement in 2018
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.