River Flood Warning 35, NWS Austin/San Antonio, TX

Issued

Oct 14, 2021, 7:15 AM CDT (12:15 UTC)

In effect from

Oct 14, 2021, 8:20 AM CDT

Expired

Oct 14, 2021, 1:37 PM CDT

In force

5 hr

Issued by

NWS Austin/San Antonio, TX

Area

Storm-based polygon

Flood severity

Minor

County Travis County, TX

The Austin/San Antonio radar (KEWX), 60 km from the middle of the area, began a volume at 12:17 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.

Written for the forecast point Onion Creek at US 183 (ATIT2). The gauge peaked at 17.98 ft at Oct 14, 2021, 12:00 PM CDT.

Action stage

15 ft

Minor stage

17 ft

Moderate stage

23 ft

Major stage

27 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 08159000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

126 
WGUS44 KEWX 141215
FLWEWX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Austin/San Antonio TX
715 AM CDT Thu Oct 14 2021

...The National Weather Service in Austin/San Antonio TX has issued 
a Flood Warning for the following rivers in Texas...

  Onion Creek At Hwy 183 affecting Travis County.

For the Colorado River...including Llano, Kingsland, Loop 360, Buda, 
Austin, Hwy 183, Bastrop, Smithville, La Grange...Minor flooding is 
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Additional information is available at www.weather.gov.

The next statement will be issued this evening at 715 PM CDT.

&&


TXC453-150015-
/O.NEW.KEWX.FL.W.0035.211014T1320Z-211015T0707Z/
/ATIT2.1.ER.211014T1320Z.211014T1700Z.211014T1906Z.NO/
715 AM CDT Thu Oct 14 2021

The National Weather Service in Austin/San Antonio has issued a

* Flood Warning for
  the Onion Creek At Hwy 183.
* Until just after midnight tonight.
* At 7:00 AM CDT Thursday the stage was 15.0 feet.
* Flood stage is 17.0 feet.
* Minor flooding is forecast.
* Forecast...The river will rise above flood stage this morning to 
  19.0 feet this afternoon. It will then fall below flood stage this 
  afternoon and remain below flood stage.
* Impact...At 20.0 feet, Minor lowland flooding threatens secondary 
  roads, but neighborhoods along Onion Creek are not affected. 
  Upstream, the 12000 block of Old San Antonio Road is likely 
  flooded and impassable.
* Flood History...This crest compares to a previous crest of 19.8 
  feet on 06/04/1987.

&&


           Fld   Observed           Forecasts (7 am CDT)     
Location   Stg   Stg   Day/Time     Fri   Sat   Sun          

Onion Creek
Hwy 183    17.0  15.0  Thu 7 am CDT 7.7   6.0   5.8          





&&

LAT...LON 3012 9781 3018 9779 3023 9759 3019 9753

$$

HAMPSHIRE

743 
WGUS84 KEWX 141427
FLSEWX

Flood Statement
National Weather Service Austin/San Antonio TX
927 AM CDT Thu Oct 14 2021

...The Flood Warning continues for the following rivers in Texas...

  Onion Creek At Hwy 183 affecting Travis County.

For the Colorado River...including Hwy 183...Minor flooding is 
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Additional information is available at www.weather.gov.

The next statement will be issued this evening at 930 PM CDT.

&&


TXC453-150230-
/O.EXT.KEWX.FL.W.0035.000000T0000Z-211015T0507Z/
/ATIT2.1.ER.211014T1423Z.211014T1500Z.211014T1707Z.NO/
927 AM CDT Thu Oct 14 2021

...The Flood Warning is now in effect until just after midnight 
tonight...

The Flood Warning continues for
  the Onion Creek At Hwy 183.
* Until just after midnight tonight.
* At 9:20 AM CDT Thursday the stage was 17.0 feet.
* Flood stage is 17.0 feet.
* Minor flooding is forecast.
* Forecast...The river will oscillate above flood stage with a 
  maximum value of 17.5 feet late this morning. It will fall below 
  flood stage this afternoon.
* Impact...At 17.0 feet, The 12000 block of Old San Antonio Road 
  upstream may be flooded. Neighborhoods along Onion Creek are not 
  affected.
* Flood History...No available flood history.

&&


           Fld   Observed           Forecasts (9 am CDT)     
Location   Stg   Stg   Day/Time     Fri   Sat   Sun          

Onion Creek
Hwy 183    17.0  17.0  Thu 9 am CDT 6.5   5.8   5.7          





&&

LAT...LON 3012 9781 3018 9779 3023 9759 3019 9753

$$

MORRIS

905 
WGUS84 KEWX 141837
FLSEWX

Flood Statement
National Weather Service Austin/San Antonio TX
137 PM CDT Thu Oct 14 2021

...The Flood Warning is cancelled for the following rivers in 
Texas...

  Onion Creek At Hwy 183 affecting Travis County.

TXC453-141945-
/O.CAN.KEWX.FL.W.0035.000000T0000Z-211014T1837Z/
/ATIT2.1.ER.211014T1423Z.211014T1635Z.211014T1815Z.NO/
137 PM CDT Thu Oct 14 2021

...The Flood Warning for the Onion Creek At Hwy 183 has been 
cancelled...

The Flood Warning is cancelled for
  the Onion Creek At Hwy 183.
* At 1:20 PM CDT Thursday the stage was 16.9 feet.
* Flood stage is 17.0 feet.
* Forecast...The river will oscillate below flood stage with a 
  maximum value of 12.7 feet this afternoon.

&&


           Fld   Observed           Forecasts (2 pm CDT)     
Location   Stg   Stg   Day/Time     Fri   Sat   Sun          

Onion Creek
Hwy 183    17.0  16.9  Thu 1 pm CDT 6.8   5.8   5.7          





&&

LAT...LON 3012 9781 3018 9779 3023 9759 3019 9753

$$

HAMPSHIRE

River Flood Warnings in Texas, 2021Every river flood warning in 2021

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.