Sunday, February17, 2019 L-36.com


Marine Weather and Tides
Bertram, TX

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:08AMSunset 6:22PM Sunday February 17, 2019 8:12 PM CST (02:12 UTC) Moonrise 4:20PMMoonset 5:34AM Illumination 98% Phase: Waxing Gibbous; Moon at 13 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 172333 aaa
afdewx
area forecast discussion... Updated
national weather service austin san antonio tx
533 pm cst Sun feb 17 2019

Update
Please see the 00z aviation forecast discussion below.

Aviation
Vfr conditions are in store at area TAF sites through the current
forecast period. Only high clouds are expected through tomorrow as
winds along the i-35 corridor remain from the northeast. Similar
conditions out west at drt with winds transitioning to a more
southeasterly direction by mid-morning Monday.

Prev discussion issued 251 pm cst Sun feb 17 2019
short term (tonight through Monday night)...

the current upper air pattern is characterized by broad troughing across
the western CONUS and ridging across the eastern CONUS with
southwesterly flow aloft across south central texas. Drier air has
filtered in behind the cold frontal passage this morning. Low rh
values and some gusty winds have yielded some slightly elevated fire
weather conditions this afternoon. The rest of today should be quite
pleasant with temperatures tonight dropping into the upper 30s to low
40s across the majority of the region.

Unfortunately, the brief period of mostly clear skies will be
squelched with the arrival of more cloud cover as we progress
through Monday afternoon due to the approach of another upper level
trough from the northwest. High temperatures tomorrow will be below
seasonal normals, ranging from the mid 50s to low 60s. Weak
isentropic ascent will lead to slight chances for showers and drizzle
overnight Monday into Tuesday morning.

Long term (Tuesday through Saturday)...

rain chances will increase throughout the day on Tuesday as the
trough axis approaches, with the williamson and lee county areas
being most favored for shower activity. Accumulated rainfall should
remain below a quarter of an inch. Temperatures on Tuesday will be
much cooler than seasonal normals.

Wednesday should generally remain dry as the upper level trough lifts
to the northeast, with only 20% pops across the coastal plains. There
should be some breaks in the clouds, allowing for partly sunny
conditions. Highs will be in the low to mid 60s.

Generally unsettled weather returns for Thursday through Saturday
due to the approach of another upper level trough from the northwest,
bringing mostly cloudy skies and chances for rain. The GFS is more
bullish in terms of rain coverage and accumulated rainfall than the
ecmwf. For now, have mostly used a model blend for pops and qpf. Even
the more bullish GFS yields less than an inch of total accumulated
rainfall for all areas except for the northeastern counties of the
cwa. High temperatures during this time period will gradually warm,
with highs around 60 for Thursday and warming up to the upper 60s to
lower 70s by Saturday.

Preliminary point temps pops
Austin camp mabry 41 58 43 49 42 0 0 30 50 20
austin bergstrom intl airport 40 59 43 50 42 0 0 30 50 20
new braunfels muni airport 40 60 44 53 42 0 0 30 40 20
burnet muni airport 38 53 39 47 38 0 0 30 60 20
del rio intl airport 45 63 49 63 45 0 0 10 20 10
georgetown muni airport 39 54 40 46 39 0 0 30 60 20
hondo muni airport 42 63 46 58 43 0 0 20 30 20
san marcos muni airport 40 60 43 52 42 0 0 30 50 20
la grange - fayette regional 40 61 46 52 44 0 0 40 60 30
san antonio intl airport 42 61 45 55 44 0 0 20 40 20
stinson muni airport 42 62 46 56 45 0 0 20 40 20

Ewx watches warnings advisories
None.

Aviation... Platt
short-term long-term... 05


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Burnet, Burnet Municipal Craddock Field, TX13 mi20 minNE 910.00 miFair50°F33°F52%1015.5 hPa
Georgetown, Georgetown Municipal Airport, TX18 mi17 minNNE 710.00 miFair50°F33°F52%1016.8 hPa
Lago Vista TX, Rusty Allen Airport, TX20 mi38 minNE 10 G 1510.00 miFair51°F27°F39%1014.9 hPa
Fort Hood, Robert Gray AAF Ft Hood, TX21 mi75 minNE 1010.00 miFair50°F31°F50%1014.9 hPa
Lampasas, Lampasas Airport, TX24 mi38 minNE 510.00 miFair48°F33°F58%1015.2 hPa

Wind History from BMQ (wind in knots)
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Last 24hrS7S7S6S3SW3SW4W7CalmNW11NW12
G19
N11N6N9N10N10N11N11NE10NE13
G18
NE10N10NE9NE6NE9
1 day ago------------N8N9N7N5N8NE6N7N5N4NE34CalmCalmCalmS7SE7E3SE5
2 days agoS7S4W3SW3CalmCalmSW4SW3CalmCalmCalmCalmCalmS6SW5S8SW10W8
G15
W7
G16
W8W9CalmCalm--

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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wmap_A
GOES Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Austin/San Antonio, TX (21,6,7,8)
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Ground Weather Radar Station Central Texas
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weather_mapweather_map weather_map

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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.