Alerts
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| Flood Watch issued November 18 at 8:40PM CST until November 21 at 6:00AM CST by NWS Austin/San Antonio TX | ||
| NWS Austin/San Antonio TX | ||
| Category | Certainty | Severity |
| Met | Possible | Severe |
| Status | Urgency | Category |
| Actual | Future | Met |
| Effective | Ends | Expires |
| 11/18/2025 08:40 PM | 11/21/2025 06:00 AM | 11/19/2025 12:00 PM |
An upper level low will interact with deep low level moisture and
then bring a Pacific cold front through South-Central Texas
Wednesday night and Thursday. This combination of features will lead
to locally heavy rainfall over the Southern Edwards Plateau, Hill
Country, and I-35 Corridor. Showers and thunderstorms will begin out
west Wednesday night and move across the region Thursday exiting our
eastern area Friday morning. Some storms will produce locally heavy
rain leading to flash flooding.
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of south central Texas, including the following
counties, Bandera, Bexar, Blanco, Burnet, Comal, Edwards,
Gillespie, Hays, Kendall, Kerr, Kinney, Llano, Medina, Real,
Travis, Uvalde, Val Verde and Williamson.
* WHEN...From late Wednesday night through late Thursday night.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Flooding may occur
in poor drainage and urban areas. Low-water crossings may be
flooded.
* ADDITIONAL DETAILS...
- Rainfall amounts of 1-3 inches with isolated totals to 6
inches.
- http://www.weather.gov/safety/flood
|
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Hourly Forecast
Tue, 11:00 PM
Partly CloudyWinds: 5 mph S
Wed, 12:00 AM
Slight Chance DrizzleWinds: 5 mph S
Wed, 01:00 AM
Slight Chance DrizzleWinds: 5 mph S
Wed, 02:00 AM
Slight Chance DrizzleWinds: 0 mph
Wed, 03:00 AM
Slight Chance DrizzleWinds: 0 mph
Wed, 04:00 AM
Slight Chance DrizzleWinds: 0 mph
Wed, 05:00 AM
Slight Chance DrizzleWinds: 0 mph
Wed, 06:00 AM
Chance Rain ShowersWinds: 0 mph
Wed, 07:00 AM
Chance Rain ShowersWinds: 0 mph
Wed, 08:00 AM
Chance Rain ShowersWinds: 0 mph
Wed, 09:00 AM
Chance Showers And ThunderstormsWinds: 5 mph SSE
Wed, 10:00 AM
Chance Showers And ThunderstormsWinds: 5 mph SSE
Wed, 11:00 AM
Chance Showers And ThunderstormsWinds: 5 mph SSE
Wed, 12:00 PM
Slight Chance Showers And ThunderstormsWinds: 5 mph S
Wed, 01:00 PM
Slight Chance Showers And ThunderstormsWinds: 5 mph S
Wed, 02:00 PM
Slight Chance Showers And ThunderstormsWinds: 5 mph S
Wed, 03:00 PM
Chance Showers And ThunderstormsWinds: 5 mph SSE
Wed, 04:00 PM
Chance Showers And ThunderstormsWinds: 5 mph SSE
Wed, 05:00 PM
Chance Showers And ThunderstormsWinds: 5 mph SE
Wed, 06:00 PM
Chance Showers And ThunderstormsWinds: 5 mph SE
Wed, 07:00 PM
Chance Showers And ThunderstormsWinds: 5 mph SE
Wed, 08:00 PM
Chance Showers And ThunderstormsWinds: 5 mph SE
Wed, 09:00 PM
Slight Chance Showers And ThunderstormsWinds: 5 mph SE
Wed, 10:00 PM
Slight Chance Showers And ThunderstormsWinds: 5 mph SSE
Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays.
Upper Texas coastal waters from High Island to the Matagorda Ship Channel out 60 nautical miles including Galveston and Matagorda Bays. Seas are provided as a range of the average height of the highest 1/3 of the waves.along with the occasional height of the average highest 10 percent of the waves. Areas of inland fog may bleed into portions of Galveston Bay and the northern Houston Ship Channel overnight causing reduced visibility. Fog should burn off toward mid morning. Areas of fog look to be possible again Wednesday night, though not as prevalent as tonight. Otherwise, light to moderate onshore flow should continue through Thursday night with Gulf seas of 2 to 4 feet. A very weak frontal boundary will sag close to the coast late Friday night or Saturday morning then wash out. Onshore winds quickly resume late in the day Saturday then increase Sunday.