Saturday, October23, 2021
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Marine Weather and Tides
Bertram, TX

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:38AMSunset 6:52PM Saturday October 23, 2021 3:09 PM CDT (20:09 UTC) Moonrise 7:53PMMoonset 9:22AM Illumination 91% Phase: Waning Gibbous; Moon at 18 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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7 Day Forecast for Marine Location Near Bertram, TX
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location: 30.79, -98     debug


Area Discussion for - Austin/San Antonio, TX
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FXUS64 KEWX 231853 AFDEWX

Area Forecast Discussion National Weather Service Austin/San Antonio TX 153 PM CDT Sat Oct 23 2021

SHORT TERM (Today through Sunday).

Visible satellite imagery shows sunny conditions towards the Rio Grande and few to scattered fair weather cumulus elsewhere this afternoon. A weak disturbance within the flow aloft is passing to the east-southeast, mainly along the Texas coastal bend. Given trends, I trimmed the rain chance out of the forecast expect for some locations within our far eastern counties. Otherwise, the continued string of above average temperatures is the main story where highs this afternoon peak in the mid to upper 80s. A few locations could top 90 degrees. Winds remain out of south to southeast of around 5 to 15 mph.

A mild evening is expected under a mostly clear to partly cloudy sky. Low clouds then return overnight into Sunday morning. Some visibility restriction cannot be ruled out but fog looks less likely compared to the past few mornings. Ceilings lift and the clouds scatter out into Sunday afternoon. This yields to another warm afternoon where afternoon highs peak about a degree or two warmer than this afternoon. Another mild and humid evening is in store for Sunday with the low clouds returning from late Sunday night into Monday morning. Rainfall chances are negligible but a light sprinkle or pocket of patchy drizzle cannot be completely ruled out in the early mornings.

LONG TERM (Sunday Night through Friday).

An upper ridge crossing the Plains on Monday will bring the warmest day of the week to start the long term. The tail end of a cold front associated with a Great Lakes trough may approach our far northeastern counties early, but most guidance suggests it will stall just short of our area. Subsidence should allow for mostly clear skies through most of the day and with southerly winds at 5-15 mph we anticipate high temperatures topping out in the mid 80s to mid 90s, threatening record highs for much of the region.

After a warm, humid Tuesday morning, cloud cover is likely to hang on longer during the day and most folks should see highs a few degrees cooler than Monday. In the afternoon and evening, locations along and east of I-35 may see a few showers and storms in association with any haggard remnants of Hurricane Rick in the eastern Pacific. Not expecting any issues with this, mainly just some isolated to scattered light to moderate rainfall at worst.

But as another deep trough moves out of the Four Corners region into TX Tuesday night, there should be enough moisture and lift available ahead of the next cold front to produce scattered to numerous showers and storms. As of right now, this activity would be mainly after midnight in the Hill Country, expanding south and east and then exiting through the day Wednesday. Isolated locally heavy rain cannot be ruled out, but for the most part we're anticipating rainfall amounts of less than 1" with isolated 2-3" amounts being the worst case. Near the Rio Grande especially from Eagle Pass southwards where they could use the rain the most, unfortunately rain chances look very low with this system.

There is some concern for potential severe weather along and ahead of this cold front, although at this point the better CAPE/shear parameter space looks to remain to our north. We'll be able to hone in on whether/where this potential may exist for our area as we get closer. A lot will depend on just how deep and how far south the upper trough is. The ECMWF paints a more concerning picture than the GFS in this regard with the 500mb height contours closing off over the Panhandle early Wednesday. Perhaps the late overnight fropa timing, if it holds, may lessen instability enough to keep severe concerns lower, but locations along and north of Rocksprings to San Antonio to Cuero should be aware of at least some chance for stronger thunderstorms late Tuesday night.

We'll dry back out behind the front for the remainder of the week as long as the low track stays far enough north to prevent any wrap- around precip north of Austin on Wednessday night into Thursday. On Wednesday and likely Thursday as well, strong NW winds are forecast. Sustained speeds as high as 20-25 mph near the Rio Grande with gusts of 30-35 mph, combined with the dry airmass moving in, will likely lead to elevated to perhaps near- critical Fire Weather concerns Wednesday. By Thursday, the pressure gradient should be weakening slightly and beginning to shift east, but it could still be a bit breezy depending on how progressive the system is. Looking on the bright side, we'll finally see cooler, drier and thus more comfortable conditions with highs in the 70s to low 80s areawide Thursday and Friday.

PREV DISCUSSION. /ISSUED 1213 PM CDT Sat Oct 23 2021/

AVIATION . 18Z TAF Package

Satellite imagery shows the morning low clouds continue to mix out with pockets of few to sct fair weather cu. VFR conditions should persist through the afternoon into tonight. Any isolated shower or convective activity should remain east of the aerodromes. Tonight will see the return of MVFR to IFR ceilings beyond 06Z. Visibility restrictions look less likely compared to this morning. Once low clouds mix out, expect for VFR levels to return by or into Sunday afternoon. South to southeasterly winds continue of around 5 to 15 mph.

PRELIMINARY POINT TEMPS/POPS. Austin Camp Mabry 88 70 89 71 90 / 10 - - 0 0 Austin Bergstrom Intl Airport 87 69 88 69 90 / 10 - - 0 0 New Braunfels Muni Airport 87 69 88 69 91 / - - - 0 0 Burnet Muni Airport 85 69 86 68 90 / - - - 0 0 Del Rio Intl Airport 91 71 92 70 94 / 0 - - 0 0 Georgetown Muni Airport 86 69 87 69 91 / - - - 0 0 Hondo Muni Airport 88 69 89 68 92 / - - - 0 0 San Marcos Muni Airport 86 69 88 69 90 / 10 - - 0 0 La Grange - Fayette Regional 88 70 89 72 91 / 20 10 - 0 0 San Antonio Intl Airport 87 70 88 71 89 / 10 - - 0 0 Stinson Muni Airport 88 71 91 71 93 / - - - 0 0

EWX WATCHES/WARNINGS/ADVISORIES. None.

Short-Term/Aviation . Brady Long-Term . KCW


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Burnet, Burnet Municipal Craddock Field, TX13 mi77 minSSE 7 G 1510.00 miPartly Cloudy83°F65°F55%1011.1 hPa
Georgetown, Georgetown Municipal Airport, TX18 mi74 minS 10 G 1510.00 miMostly Cloudy85°F67°F55%1011.7 hPa
Lago Vista TX, Rusty Allen Airport, TX20 mi75 minSSE 610.00 miMostly Cloudy85°F67°F54%1012.5 hPa
Fort Hood, Robert Gray AAF Ft Hood, TX21 mi74 minS 8 G 1810.00 miMostly Cloudy84°F65°F53%1010.2 hPa
Lampasas, Lampasas Airport, TX24 mi95 minSSW 8 G 1510.00 miPartly Cloudy83°F64°F53%1011.2 hPa

Link to 5 minute data for KBMQ

Wind History from BMQ (wind in knots)
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Last 24hrE4SE6SE4SE3E3SE4SE3SE4S4S5S6S3S5SE4S7S3S6S6S6S8S10
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1 day agoE6E7SE4E3SE300000N3N4N3N3NE50NE30E4SE5SE734SE5
2 days agoSW6S6SE500000000000NE3000N3N3SE40N45

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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