San Antonio, Texas Weather Conditions

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Current Conditions

  • 75°
  • Overcast
  • Wind: SE 13 mph
  • Humidity: 89%
  • Visibility: 10.0 miles
  • Dew Point: 72°
  • Pressure: 29.99 in. -

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Next 12 Hours

2  am
5  am
8  am
11  am
2  pm
Overcast
Overcast
Chance of a Thunderstorm
Chance of T-storms
Overcast
Overcast
Overcast
Overcast
Mostly Cloudy
Mostly Cloudy
75°
72°
73°
79°
84°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Chance of a Thunderstorm
  • High: 87 °
  • Low: 70 °
  • Chance of T-Storms
  • Tuesday
  • Thunderstorm
  • High: 84 °
  • Low: 70 °
  • T-Storms
  • Wednesday
  • Thunderstorm
  • High: 82 °
  • Low: 68 °
  • T-Storms
  • Thursday
  • Thunderstorm
  • High: 82 °
  • Low: 67 °
  • T-Storms
  • Friday
  • Thunderstorm
  • High: 83 °
  • Low: 65 °
  • T-Storms

Forecast for San Antonio, Texas

Updated: 12:05 am CDT on May 30, 2016

  • Rest of Tonight

    Cloudy. Slight chance of showers and thunderstorms before midnight...then a chance of showers and thunderstorms after midnight. Lows in the lower 70s. Southeast winds 5 to 10 mph. Chance of rain 50 percent.

  • Monday

    Cloudy with a 30 percent chance of showers and thunderstorms. Highs 82 to 87. Southeast winds 5 to 10 mph.

  • Monday Night

    Cloudy with a 40 percent chance of showers and thunderstorms. Lows in the lower 70s. Southeast winds 5 to 10 mph.

  • Tuesday

    Cloudy with a 50 percent chance of showers and thunderstorms. Highs 81 to 86. Southeast winds 10 to 15 mph.

  • Tuesday Night

    Mostly cloudy with a 40 percent chance of showers and thunderstorms. Lows in the lower 70s. Southeast winds 10 to 15 mph.

  • Wednesday and Wednesday Night

    Cloudy with showers and thunderstorms likely. Highs 79 to 84. Lows around 70. Chance of rain 70 percent.

  • Thursday

    Cloudy with showers and thunderstorms likely. Highs 77 to 82. Chance of rain 60 percent.

  • Thursday Night and Friday

    Mostly cloudy with a 40 percent chance of showers and thunderstorms. Lows in the upper 60s. Highs 77 to 82.

  • Friday Night

    Partly cloudy. Lows in the mid 60s.

  • Saturday

    Partly cloudy with a 40 percent chance of showers and thunderstorms. Highs 78 to 83.

  • Saturday Night

    Partly cloudy. Lows in the mid 60s.

  • Sunday

    Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs in the lower 80s.

Severe Weather Alert Descriptions

 Flood Warning  Statement as of 8:43 PM CDT on May 29, 2016


the Flood Warning continues for
the San Antonio River near Elmendorf.
* At 8:30 PM Sunday the stage was 27.0 feet.
* Flood stage is 35.0 feet.
* Minor flooding is forecast.
* Forecast... rise above flood stage by tomorrow early afternoon and continue to
rise to near 35.6 feet by tomorrow evening. The river will fall below flood
stage by early Tuesday morning.
* Impact... at 35.0 feet... minor lowland flooding inundates crop and pastureland
below San Antonio to below Floresville..


Below are the latest river stages and forecasts:


                    bf fld observed forecast 7am
location stg stg stg day time Mon Tue Wed Thu Fri
Elmendorf 33 35 27.0 sun 8 PM 32.2 32.1 18.4 16.8 17.9



Lat... Lon 2919 9838 2926 9835 2920 9817 2899 9804
      2894 9813 2915 9825





843 PM CDT sun may 29 2016

the Flood Warning continues for
the Medina River at Hwy 281.
* At 8:15 PM Sunday the stage was 11.2 feet.
* Flood stage is 20.0 feet.
* Minor flooding is forecast.
* Forecast... rise above flood stage by tomorrow late morning and continue to
rise to near 20.9 feet by tomorrow early afternoon. The river will fall below
flood stage by tomorrow late evening.
* Impact... at 20.0 feet... minor lowland flooding reaches The Farm to Market 1937
bridge floor..


Below are the latest river stages and forecasts:


                    bf fld observed forecast 7am
location stg stg stg day time Mon Tue Wed Thu Fri
Hwy 281 16 20 11.2 sun 8 PM 19.4 15.6 7.0 6.5 7.5



Lat... Lon 2922 9857 2929 9857 2926 9835 2919 9838






 Local Storm Report 



05/29/2016 0345 am

4 miles WSW of sea world, Bexar County.

Thunderstorm wind damage, reported by storm chaser.


            Wind gusts blew down a section of new wooden fencing in
            the Rolling Oaks estates subdivision




05/29/2016 0350 am

4 miles S of sea world, Bexar County.

Thunderstorm wind damage, reported by Emergency Mngr.


            Thunderstorm wind gusts damaged a church roof and tall
            Road sign at the corner of Big Mesa drive and Buffalo
            Pass drive




05/29/2016 0404 am

2 miles S of Helotes, Bexar County.

Thunderstorm wind gust e55 mph, reported by trained spotter.


            Penny to quarter sized hail and wind gusts to 55 mph
            estimated by spotter. Several large outdoor objects
            displaced.




05/29/2016 0404 am

2 miles S of Helotes, Bexar County.

Hail e1.00 inch, reported by trained spotter.


            Penny to quarter sized hail and wind gusts to 55 mph
            estimated by spotter. Several large outdoor objects
            displaced.




05/29/2016 0445 am

San Antonio, Bexar County.

Flood, reported by law enforcement.


            I-35 southbound at nogolitos closed due to flooding




05/29/2016 0630 am

1 miles NE of Lacoste, Bexar County.

Flash flood, reported by dept of highways.


            Macdona-Lacoste Road near the County line closed due to
            flooding




05/29/2016 0725 am

2 miles se of midway, Bexar County.

Flash flood, reported by dept of highways.


            Kinney Road at Moore Road closed due to flooding




05/29/2016 0345 am

4 miles WSW of sea world, Bexar County.

Thunderstorm wind damage, reported by storm chaser.


            Wind gusts blew down a section of new wooden fencing in
            the Rolling Oaks estates subdivision




05/29/2016 0350 am

4 miles S of sea world, Bexar County.

Thunderstorm wind damage, reported by Emergency Mngr.


            Thunderstorm wind gusts damaged a church roof and tall
            Road sign at the corner of Big Mesa drive and Buffalo
            Pass drive




05/29/2016 0404 am

2 miles S of Helotes, Bexar County.

Thunderstorm wind gust e55 mph, reported by trained spotter.


            Penny to quarter sized hail and wind gusts to 55 mph
            estimated by spotter. Several large outdoor objects
            displaced.




05/29/2016 0404 am

2 miles S of Helotes, Bexar County.

Hail e1.00 inch, reported by trained spotter.


            Penny to quarter sized hail and wind gusts to 55 mph
            estimated by spotter. Several large outdoor objects
            displaced.




05/29/2016 0445 am

San Antonio, Bexar County.

Flood, reported by law enforcement.


            I-35 southbound at nogolitos closed due to flooding




05/29/2016 0630 am

1 miles NE of Lacoste, Bexar County.

Flash flood, reported by dept of highways.


            Macdona-Lacoste Road near the County line closed due to
            flooding




05/29/2016 0725 am

2 miles se of midway, Bexar County.

Flash flood, reported by dept of highways.


            Kinney Road at Moore Road closed due to flooding




05/29/2016 0725 am

2 miles se of midway, Bexar County.

Flash flood, reported by dept of highways.


            Kinney Road at Moore Road closed due to flooding





05/29/2016 0630 am

1 miles NE of Lacoste, Bexar County.

Flash flood, reported by dept of highways.


            Macdona-Lacoste Road near the County line closed due to
            flooding





05/29/2016 0350 am

4 miles S of sea world, Bexar County.

Thunderstorm wind damage, reported by Emergency Mngr.


            Thunderstorm wind gusts damaged a church roof and tall
            Road sign at the corner of Big Mesa drive and Buffalo
            Pass drive





05/29/2016 0725 am

2 miles se of midway, Bexar County.

Flash flood, reported by dept of highways.


            Kinney Road at Moore Road closed due to flooding





05/29/2016 0725 am

2 miles se of midway, Bexar County.

Flash flood, reported by dept of highways.


            Kinney Road at Moore Road closed due to flooding





05/29/2016 0630 am

1 miles NE of Lacoste, Bexar County.

Flash flood, reported by dept of highways.


            Macdona-Lacoste Road near the County line closed due to
            flooding





05/29/2016 0630 am

1 miles NE of Lacoste, Bexar County.

Flash flood, reported by dept of highways.


            Macdona-Lacoste Road near the County line closed due to
            flooding





05/29/2016 0345 am

4 miles WSW of sea world, Bexar County.

Thunderstorm wind damage, reported by storm chaser.


            Wind gusts blew down a section of new wooden fencing in
            the Rolling Oaks estates subdivision





05/29/2016 0350 am

4 miles S of sea world, Bexar County.

Thunderstorm wind damage, reported by Emergency Mngr.


            Thunderstorm wind gusts damaged a church roof and tall
            Road sign at the corner of Big Mesa drive and Buffalo
            Pass drive





05/29/2016 0350 am

4 miles S of sea world, Bexar County.

Thunderstorm wind damage, reported by Emergency Mngr.


            Thunderstorm wind gusts damaged a church roof and tall
            Road sign at the corner of Big Mesa drive and Buffalo
            Pass drive





05/29/2016 0345 am

4 miles WSW of sea world, Bexar County.

Thunderstorm wind damage, reported by storm chaser.


            Wind gusts blew down a section of new wooden fencing in
            the Rolling Oaks estates subdivision





05/29/2016 0345 am

4 miles WSW of sea world, Bexar County.

Thunderstorm wind damage, reported by storm chaser.


            Wind gusts blew down a section of new wooden fencing in
            the Rolling Oaks estates subdivision





05/29/2016 0445 am

San Antonio, Bexar County.

Flood, reported by law enforcement.


            I-35 southbound at nogolitos closed due to flooding





05/29/2016 0404 am

2 miles S of Helotes, Bexar County.

Thunderstorm wind gust e55 mph, reported by trained spotter.


            Penny to quarter sized hail and wind gusts to 55 mph
            estimated by spotter. Several large outdoor objects
            displaced.




05/29/2016 0404 am

2 miles S of Helotes, Bexar County.

Hail e1.00 inch, reported by trained spotter.


            Penny to quarter sized hail and wind gusts to 55 mph
            estimated by spotter. Several large outdoor objects
            displaced.





05/29/2016 0445 am

San Antonio, Bexar County.

Flood, reported by law enforcement.


            I-35 southbound at nogolitos closed due to flooding





05/29/2016 0445 am

San Antonio, Bexar County.

Flood, reported by law enforcement.


            I-35 southbound at nogolitos closed due to flooding





05/29/2016 0404 am

2 miles S of Helotes, Bexar County.

Thunderstorm wind gust e55 mph, reported by trained spotter.


            Penny to quarter sized hail and wind gusts to 55 mph
            estimated by spotter. Several large outdoor objects
            displaced.




05/29/2016 0404 am

2 miles S of Helotes, Bexar County.

Hail e1.00 inch, reported by trained spotter.


            Penny to quarter sized hail and wind gusts to 55 mph
            estimated by spotter. Several large outdoor objects
            displaced.





05/29/2016 0404 am

2 miles S of Helotes, Bexar County.

Thunderstorm wind gust e55 mph, reported by trained spotter.


            Penny to quarter sized hail and wind gusts to 55 mph
            estimated by spotter. Several large outdoor objects
            displaced.




05/29/2016 0404 am

2 miles S of Helotes, Bexar County.

Hail e1.00 inch, reported by trained spotter.


            Penny to quarter sized hail and wind gusts to 55 mph
            estimated by spotter. Several large outdoor objects
            displaced.




Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Leon Valley, San Antonio, TX

Updated: 1:42 AM CDT

Temperature: 75.6 °F Dew Point: 70 °F Humidity: 84% Wind: South at 5.3 mph Pressure: 29.79 in Hourly Precipitation: - Heat Index: 76 °F Graphs

Location: Flatus Fields, San Antonio, TX

Updated: 1:42 AM CDT

Temperature: 75.9 °F Dew Point: 72 °F Humidity: 87% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Pipers Meadow, San Antonio, TX

Updated: 1:41 AM CDT

Temperature: 76.6 °F Dew Point: 72 °F Humidity: 87% Wind: North at - Pressure: 29.64 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Pipers Meadow, San Antonio, TX

Updated: 1:40 AM CDT

Temperature: 76.3 °F Dew Point: 72 °F Humidity: 87% Wind: SE at 6.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Marshall Meadows, San Antonio, TX

Updated: 1:42 AM CDT

Temperature: 75.9 °F Dew Point: 74 °F Humidity: 93% Wind: South at 1.1 mph Pressure: 30.10 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Wellesley Manor, San Antonio, TX

Updated: 1:40 AM CDT

Temperature: 75.3 °F Dew Point: 69 °F Humidity: 91% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: mainland sq, San Antonio, TX

Updated: 1:39 AM CDT

Temperature: 75.0 °F Dew Point: 70 °F Humidity: 83% Wind: West at 2.2 mph Pressure: 29.75 in Hourly Precipitation: - Heat Index: 75 °F Graphs

Location: Northwest Side, San Antonio, TX

Updated: 1:40 AM CDT

Temperature: 77.2 °F Dew Point: 72 °F Humidity: 83% Wind: North at - Pressure: 29.89 in Hourly Precipitation: - Heat Index: 79 °F Graphs

Location: Alamo Farmsteads, San Antonio, TX

Updated: 1:42 AM CDT

Temperature: 74.8 °F Dew Point: 68 °F Humidity: 80% Wind: Calm Pressure: 29.21 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: West Wood Village, San Antonio, TX

Updated: 1:42 AM CDT

Temperature: 75.9 °F Dew Point: 73 °F Humidity: 90% Wind: South at 2.3 mph Pressure: 29.21 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Braun Station, San Antonio, TX

Updated: 1:42 AM CDT

Temperature: 76.3 °F Dew Point: 76 °F Humidity: 99% Wind: ESE at 3.1 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Tezel Trails, San Antonio, TX

Updated: 1:35 AM CDT

Temperature: 75.0 °F Dew Point: 71 °F Humidity: 88% Wind: ESE at 1.7 mph Pressure: 29.88 in Hourly Precipitation: - Heat Index: 74 °F Graphs

Location: Village Northwest, San Antonio, TX

Updated: 1:29 AM CDT

Temperature: 75.0 °F Dew Point: 74 °F Humidity: 96% Wind: SSE at 5.3 mph Pressure: 29.90 in Hourly Precipitation: - Heat Index: 73 °F Graphs

Location: Laurel Hills, San Antonio, TX

Updated: 1:42 AM CDT

Temperature: 75.4 °F Dew Point: 70 °F Humidity: 84% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: NW Crossing, San Antonio, TX

Updated: 9:50 PM CDT

Temperature: 79.2 °F Dew Point: 66 °F Humidity: 64% Wind: SE at 4.5 mph Pressure: 29.56 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Far West Side, San Antonio, TX

Updated: 1:40 AM CDT

Temperature: 75.4 °F Dew Point: 75 °F Humidity: 98% Wind: North at - Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: New Territories, San Antonio, TX

Updated: 1:42 AM CDT

Temperature: 75.0 °F Dew Point: 72 °F Humidity: 91% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Dellview, San Antonio, TX

Updated: 1:42 AM CDT

Temperature: 74.3 °F Dew Point: 72 °F Humidity: 91% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Rosedale Park, San Antonio, TX

Updated: 1:40 AM CDT

Temperature: 75.9 °F Dew Point: 73 °F Humidity: 90% Wind: SSE at 3.6 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Summit, San Antonio, TX

Updated: 1:41 AM CDT

Temperature: 75.4 °F Dew Point: 72 °F Humidity: 90% Wind: ESE at 1.0 mph Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Guilbeau Park, San Antonio, TX

Updated: 1:42 AM CDT

Temperature: 75.0 °F Dew Point: 70 °F Humidity: 86% Wind: West at 4.2 mph Pressure: 28.94 in Hourly Precipitation: - Heat Index: 75 °F Graphs

Location: Northwest Crossing, San Antonio, TX

Updated: 1:42 AM CDT

Temperature: 75.0 °F Dew Point: 72 °F Humidity: 91% Wind: ESE at 1.1 mph Pressure: 28.99 in Hourly Precipitation: - Heat Index: 74 °F Graphs

Location: Jefferson, San Antonio, TX

Updated: 1:40 AM CDT

Temperature: 76.5 °F Dew Point: 73 °F Humidity: 88% Wind: North at - Pressure: 29.73 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Oxbow, San Antonio, TX

Updated: 1:41 AM CDT

Temperature: 75.6 °F Dew Point: 72 °F Humidity: 88% Wind: ESE at 6.8 mph Pressure: 29.04 in Hourly Precipitation: - Heat Index: 76 °F Graphs

Location: Northwest Side, San Antonio, TX

Updated: 1:41 AM CDT

Temperature: 75.9 °F Dew Point: 72 °F Humidity: 87% Wind: North at - Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Oak Ridge Pointe, San Antonio, TX

Updated: 1:34 AM CDT

Temperature: 75.2 °F Dew Point: 72 °F Humidity: 89% Wind: Calm Pressure: 29.98 in Hourly Precipitation: - Heat Index: 75 °F Graphs

Location: North Central, San Antonio, TX

Updated: 1:41 AM CDT

Temperature: 77.9 °F Dew Point: 72 °F Humidity: 83% Wind: North at - Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: River Mist, San Antonio, TX

Updated: 1:42 AM CDT

Temperature: 75.4 °F Dew Point: 72 °F Humidity: 90% Wind: ESE at 1.1 mph Pressure: 29.04 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Sierra Springs, San Antonio, TX

Updated: 1:42 AM CDT

Temperature: 75.6 °F Dew Point: 51 °F Humidity: 42% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Whispering Oaks, San Antonio, TX

Updated: 1:36 AM CDT

Temperature: 75.2 °F Dew Point: 72 °F Humidity: 90% Wind: ESE at 2.7 mph Pressure: 29.94 in Hourly Precipitation: - Heat Index: 74 °F Graphs

Location: University Heights Trent Ranch, San Antonio, TX

Updated: 1:28 AM CDT

Temperature: 75.4 °F Dew Point: 70 °F Humidity: 83% Wind: East at 5.8 mph Pressure: 29.80 in Hourly Precipitation: - Heat Index: 76 °F Graphs

Location: Braunridge, Helotes, TX

Updated: 1:42 AM CDT

Temperature: 75.4 °F Dew Point: 72 °F Humidity: 90% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Austin/San Antonio Texas 
126 am CDT Monday may 30 2016 


Aviation... /06z tafs/ 


Taf sites will likely encounter a few streamer showers in the 
first 6 to 8 hours of the forecast, but taf timing of stronger 
convection will be more focused on an approaching complex of 
storms still over west central Texas. At the time of taf issuance, 
model depictions mostly suggested the line getting close to aus 
just after daybreak. The line movement tracked on radar has showed 
a significant slowdown over the past hour or two, and some 
adjustments were made to the timing at I-35 sites for occasional 
lightning. The outflow appears to be making better progress out 
west with drt possibly the first site to encounter storms. 
Coverage of storms is suggested to decrease after 15z...so thunderstorms in the vicinity is 
used to cover the uncertainties in the late morning hours from drt 
to Sat/ssf. While newer rapid refresh runs continue to slow the 
complex to the north down, some forward propagation into feeder 
cells was accounted for in slightly faster timing and ceilings holding 
into the IFR range ahead of the convection. Further slowing could 
lead to lighter daybreak winds and brief lowerings into LIFR...and 
possibly midday ceilings being too pessimistic. VFR skies should 
eventually develop in the mid afternoon hours in response to storm 
outflows, and a late evening return to low clouds is expected for 
tonight. Will continue to leave out later period mention of 
convection in tafs as the outflow boundary locations will continue 
to create a low-confidence forecast environment. 


&& 


Previous discussion... /issued 947 PM CDT sun may 29 2016/ 


Update... 
canceled Severe Thunderstorm Watch for Val Verde County and 
adjusted weather grids for the rest of tonight based on current 
radar and satellite trend in addition to the latest hrrr 
solution. 


A cluster of storms over central Texas will continue to push to 
the south overnight and affect parts of the Edwards Plateau and Hill 
Country. Latest hrrr shows the storms weakening as the push to the 
south overnight before arriving to The Hill Country. However, 
isolated strong thunderstorms are not ruled out with pockets of 
moderate to localized heavy rain. With already saturated grounds 
per heavy rain episodes last several days, little amounts of 
rainfall may pose flash flooding in many areas. Therefore, a Flash 
Flood Watch is in effect for the Edwards Plateau and Hill Country 
through 1 PM Monday. 


Previous discussion... /issued 636 PM CDT sun may 29 2016/ 


Aviation... 
VFR conditions are currently prevailing across the area, but 
should see these lower into MVFR and then IFR overnight. Watching 
trends for possible convection overnight closely. Could see a 
storm or two by drt late this evening and will mention thunderstorms in the vicinity later 
this evening. Think any convection for the I-35 sites will be much 
later and associated with a potential convective complex well 
after midnight. Will again handle this with a thunderstorms in the vicinity as the overall 
probability is low at this time. VFR should return by the early 
afternoon hours tomorrow. Southeasterly flow is expected to 
continue through the period with speeds generally between 7-12 
knots. 


Previous discussion... /issued 311 PM CDT sun may 29 2016/ 


Short term (tonight through Monday night)... 
the primary focus of the short term will be the Prospect of 
multiple rounds of additional storm systems tonight and tomorrow 
night. 


For tonight...yet another shortwave perturbation in the 500 mb ridge 
over Texas will pass over The Big Bend and Edwards Plateau tonight 
providing upper level support for another round of dry line 
convection in The Big Bend region and off the Mexican mountains. 
Similar to the last couple days...instability is quite high and 
effective shear values are 40+ kts within a very warm and moist 
air mass. Thus initially isolated supercells are possible west of 
the County Warning Area and Rio Grande and organize into a convective cluster or 
mesoscale convective system by this evening. While this was agreed upon by most hi-res 
models and synoptic models this morning...the latest suite of hi- 
res runs are not as bullish on quantitative precipitation forecast generation. Even with the 
uncertainty for quantitative precipitation forecast amounts...flash flood guidance is very 
low...less than 1 inch in some cases...for locations in The Hill 
Country that received multiple inches of rain last night. 


In addition...an mesoscale convective system from the north is projected to push southward 
across central Texas overnight as well. There is more uncertainty 
with this possibility as many models deteriorate this line as it 
approaches the County Warning Area. However...if it is able to make it far enough 
south...additional rainfall could impact The Hill Country towards 
12z tomorrow morning. 


As a result...a Flash Flood Watch was issued due to the high 
vulnerability of The Hill Country and Edwards Plateau to flash 
flooding...even with relatively low amounts of quantitative precipitation forecast indicated in 
the models. 


Another similar set up is possible tomorrow night as yet another 
shortwave passage is evident in GFS/Euro/Canadian. If so...the 
Flash Flood Watch may need to be extended through Tuesday as well. 


Long term (tuesday through sunday)... 
the long term forecast has not changed substantially as a strong 
cold front is still prognosticated to move through Wednesday and produce 
widespread heavy rainfall across much of central and south central 
Texas. Therefore the flash flood threat will continue through at 
least middle week. 


The most notable change in the Middle Range forecast is the 
persistent light to moderate quantitative precipitation forecast generation due to the main 500 mb 
low deepening overtop of south central Texas Thursday and slowly 
moving off late Friday. While the cold front passage should 
eliminate the potential for additional heavy rains...even the more 
meager shower generation Thursday and Friday underneath the low 
may serve to prolong whatever flash flooding impacts occur 
throughout the week. 


The pop chances may finally begin to wane into next weekend as 
the main upper low finally pushes east. However...12z long range 
model suite shows some disagreement in this evolution as the 
GFS/Canadian/dgex push the low into Louisiana by Sunday...but the 
Euro lags the low over southeast Texas through Monday. 


&& 


Preliminary point temps/pops... 
Austin Camp Mabry 69 83 70 82 68 / 20 50 40 70 60 
Austin Bergstrom Intl Airport 68 83 69 82 68 / 20 50 40 70 70 
New Braunfels Muni Airport 70 83 70 83 68 / 20 50 40 70 70 
Burnet Muni Airport 68 81 68 80 65 / 20 50 60 70 60 
del Rio Intl Airport 72 87 71 85 68 / 40 50 60 60 70 
Georgetown Muni Airport 68 82 68 81 66 / 20 50 40 70 60 
Hondo Muni Airport 71 84 71 83 68 / 30 60 50 70 70 
San Marcos Muni Airport 68 82 69 82 68 / 20 50 40 70 70 
La Grange - Fayette regional 70 84 71 84 70 / 10 30 30 70 60 
San Antonio Intl Airport 71 83 71 82 69 / 30 50 40 70 70 
Stinson Muni Airport 72 84 72 84 70 / 30 50 40 70 70 


&& 


Ewx watches/warnings/advisories... 
Flash Flood Watch until 1 PM CDT this afternoon for the following 
counties: Bandera...blanco...Edwards...Gillespie...Kendall...Kerr... 
Kinney...Medina...real...Uvalde...Val Verde. 


&& 


$$ 


Mesoscale/aviation...Oaks 
synoptic/grids...Allen 



National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

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