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NWS San Angelo TXFL.W 0010November 9, 2026

Flood Warning: Mason, TX

The National Weather Service office in San Angelo issued a flood warning for Mason in Texas, in force until 3:00 p.m. local time on November 10. It was the 10th river flood warning the NWS office in San Angelo issued in 2026. Texas had 2 flood warnings in November 2026, against 18 in an average November of 2008-2025 (Texas's flood warnings by year).

Warning

Issued5:11 p.m. CST, November 9, 2026
In force from12:46 a.m. CST, November 10, 2026
Expires3:00 p.m. CST, November 10, 2026

In force for 14.2 hours

The notice

Issued by
National Weather Service, San Angelo TX
Area
Mason
State
Texas
Level
Warning
Issued
5:11 p.m. CST, November 9, 2026
In force from
12:46 a.m. CST, November 10, 2026
Expires
3:00 p.m. CST, November 10, 2026
CAP severity, certainty, urgency
Severe, Likely, Expected
VTEC event
KSJT FL.W 0010
Official source
National Weather Service: the notice at its source

Flood Warnings in Texas since 2008Every warning type in Texas

Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The notice as issued

...The National Weather Service in San Angelo has issued a Flood Warning for the following rivers in Texas... Llano River Near Mason affecting Mason County. For the Llano River...including Junction, Mason...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Llano River near Mason. * WHEN...From late tonight to Tuesday afternoon. * IMPACTS...At 18.0 feet, Minor lowland flooding will occur. Secondary roads and low water crossings will become flooded. * ADDITIONAL DETAILS... - At 5:00 PM CST Monday the stage was 16.0 feet. - Bankfull stage is 11.0 feet. - Forecast...The river will rise to 16.2 feet this evening. It will then fall slightly to 16.0 feet this evening. It will then rise above flood stage to 18.2 feet just after Midnight tonight. It will then fall below flood stage after Midnight tonight. - Flood stage is 18.0 feet. - Flood History...This crest compares to a previous crest of 18.4 feet on 07/12/1988. - http://www.weather.gov/safety/flood

What the agency told people to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely. Additional information is available at www.weather.gov. The next statement will be issued late tonight at 515 AM CST.

Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.

The record around this notice