Wednesday, February20, 2019 L-36.com


Marine Weather and Tides
Giddings, 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 6:59AMSunset 6:18PM Wednesday February 20, 2019 5:12 PM CST (23:12 UTC) Moonrise 7:48PMMoonset 7:59AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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
    EDIT      (on/off)   Help


7 Day Forecast for Marine Location Near Giddings, TX
   Hourly   EDIT   Help
location: 30.21, -97     debug


Area Discussion for - Austin/San Antonio, TX
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus64 kewx 202118
afdewx
area forecast discussion
national weather service austin san antonio tx
318 pm cst Wed feb 20 2019

Short term (tonight through Thursday night)
From the 30 kft view there has been a persistent trough over the wrn
us leading to a broad SW flow aloft pattern over tx so far this
february. As this trend is reinforced by an upper low digging south
over the swrn us in the short range, will continue to make
adjustments to blended model guidances to favor the cooler and more
damp NAM model. The SW flow aloft is reinforcing a coastal low which
in turn reinforces NE winds and a shallow cool overrunning pattern
with light isentropic lift. This keeps us on the low side of guidance
temps especially over central tx for the next few periods.

Will show a possibility of light rain as far SW as san antonio for
daytime Thursday, as the NAM forecast soundings indicate a shallow
nose of saturation at about 800 mbs which thickens and descends
toward the surface during the day over and east of the i-35 corridor.

The potential overrunning pattern will likely result in 10 degree or
more differences between west and eastern counties for the high
temps.

The overrunning pattern advects west Thursday night and patchy light
rain showers and maybe some drizzle could expand west to the highway
83 counties. Weak perturbations in an active subtropical jet
overhead could lead to a few storms forming prior to daybreak Friday.

Long term (Friday through Wednesday)
Most of the convective action is expected in the period Friday into
Saturday morning as the upper low, after opening into an open wave
Friday, moves east as a high amplitude upper trough and deepens again
as an upper low over the tx ok panhandles. A strong pacific front is
expected to enter western counties just before daybreak Saturday and
sweep quickly east across the area by midday Saturday. There is a
small potential for a few strong storms given the dynamics and lapse
rates aloft, but FROPA timing is not favorable for an active day
here, at least not so much as it would be for east tx. Our main
hazard concern for this forecast package remains the potential for a
red flag event with strong west winds and rapid drying expected
behind the pacific front Saturday afternoon. The model run-to-run
trends continue a strengthening trend with the mid-level low, so this
could translate to further increases in daytime winds, possibly to
the point of warranting a wind advisory. For now, will concern the
hwo for just the critical fire weather pattern. Dewpoints over the
hill country, due the strong mix-down of drier air from the strong
mid level low, are expected to fall into the teens, which is expected
to result into efficient cooling of lows into the mid 30s over parts
of the hill country and edwards plateau.

After mostly dry weather expected over most of the daytime part of
this weekend, broad zonal flow aloft will slowly evolve as a swly
flow aloft pattern Sunday through the middle of next week. Light
overrunning rain chances return for Monday through at least early
Wednesday, with measurable rain chances mainly for central and
eastern counties. The ecm GFS differ on solutions for late Wednesday
morning, as the GFS has a cold front arriving to bring drier air
Wednesday, while the ecm maintains a more flat pattern aloft and no
cold front. In either solution, the extended forecast should
continue the february trend of mostly near or below normal daytime
temperatures.

Preliminary point temps pops
Austin camp mabry 42 58 49 63 57 - 20 40 60 50
austin bergstrom intl airport 41 59 48 63 58 10 20 50 60 50
new braunfels muni airport 42 60 51 65 57 - 20 40 50 50
burnet muni airport 40 57 47 61 53 - 20 40 60 60
del rio intl airport 45 67 52 71 51 0 0 30 20 30
georgetown muni airport 40 57 48 61 55 - 20 50 70 60
hondo muni airport 43 64 52 69 56 0 - 30 40 40
san marcos muni airport 41 60 50 64 58 - 20 40 50 50
la grange - fayette regional 42 57 51 69 61 20 30 50 60 50
san antonio intl airport 44 61 52 67 58 0 20 40 40 40
stinson muni airport 44 62 53 67 59 0 20 40 40 40

Ewx watches warnings advisories
None.

Aviation... Runyen
short-term long-term... Oaks
public service data collection... 33


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Giddings, Giddings-Lee County Airport, TX3 mi18 minN 010.00 miFair64°F38°F39%1014.2 hPa
La Grange, Fayette Regional Air Center Airport, TX21 mi18 minN 310.00 miFair63°F36°F37%1013.2 hPa

Wind History from GYB (wind in knots)
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
Last 24hrN6N7N5N7N6N9N10
G14
N6N6N8N6N3N4N9N10N7N7N7N5N6N6N3NW4NE3
1 day agoNE6
G14
NE6NE5NE7N6N6N6N6NE5NE8E11
G16
NE7NE5NE4NE6N6N7N8NE8N7N10NE5N7N9
2 days agoN9
G16
N6N6N7N6NE10
G14
N7N7NE5N7NE7
G14
NE7NE5NE8NE5NE5NE8NE11
G14
NE11
G15
E13
G16
NE8
G15
NE9
G14
NE8
G14
NE8
G15

Tide / Current Tables for
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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 (18,4,5,8)
      (on/off)   Help

Ground Weather Radar Station Central Texas
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.