Tuesday, May21, 2019 L-36.com


Marine Weather and Tides
New Berlin, 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 6:34AMSunset 8:22PM Tuesday May 21, 2019 2:08 PM CDT (19:08 UTC) Moonrise 10:14PMMoonset 7:57AM Illumination 92% Phase: Waning Gibbous; Moon at 17 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 New Berlin, TX
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location: 29.4, -98     debug


Area Discussion for - Austin/San Antonio, TX
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Fxus64 kewx 211129
afdewx
area forecast discussion
national weather service austin san antonio tx
629 am cdt Tue may 21 2019

Aviation
The line of showers continues to move across the area. It now extends
from aqo (llano) to erv (kerrville) to uva (uvalde). Timing the
progress of the line out it should arrive at the i-35 terminals
(aus Sat ssf) between 12z and 13z. Based on recent trends showing no
lightning across the hill country have exchanged the vcts at aus with
vcsh so vcsh prevails at all 3 TAF sites. A mix ofVFR and MVFR cigs
is ongoing across south central texas, expect this trend to continue
through 16z as the line moves through.

After the line of showers passes the front will follow with winds
becoming more westerly during the day today around 10 knots. Ceilings
will lift andVFR conditions will prevail through the afternoon.

Southerly flow and winds returns by tonight, and although some drier
air will filter in behind the front, the quick return of southerly
flow means another night of MVFR stratus, although models have been
delaying the onset to around 09z. This makes sense with the briefly
drier air.

Prev discussion issued 607 am cdt Tue may 21 2019
update...

quick update to pull rain chances towards the rio grande where shower
activity has built farther south and retrend temperatures behind the
front based on observations. Updated products sent.

Prev discussion... Issued 403 am cdt Tue may 21 2019
short term (today through Wednesday)...

regional radars show a thin band of showers and thunderstorms along a
pacific-type cold front pushing across the edwards plateau early
this morning. The farther south this activity attempts to push, the
more it encounters an environment with strong inhibition with
aircraft soundings out of san antonio this morning showing a
pronounced capping inversion located around 870 mb. This, combined
with outflow beginning to outrun the main line, is causing this
activity to weaken as it nudges into south central texas.

Observations farther north across the concho valley have shown wind
gusts in the 30-40 mph range with this outflow and cannot rule out
some gusty winds across the hill country and central texas as this
line moves towards the east southeast this morning, but expect any
severe weather threat associated with this line to remain north of
the region.

Based on current motion, expect the line to reach the interstate 35
corridor between 6:30-8:30 am, clearing south central texas by late
morning. Upstream observations show dewpoints in the 30s and 40s
behind the front and as this drier air filters into the region later
today, a brief window for elevated fire weather conditions will be
possible in val verde county. Skies will also clear behind the front
with highs in the mid 80s to mid 90s today.

The cold front looks to briefly stall along the texas coast tonight,
lifting back inland towards south central texas through the early
morning hours Wednesday. Depending on how quickly this boundary lifts
back inland, morning lows may need to be adjusted as warmer air and
near surface moisture surge back into the region behind the front.

For now, expect lows in the low to mid 60s in the hill country and
edwards plateau and upper 60s to mid 70s for areas generally south of
there. This warm air advection will also result in a few showers
developing east of interstate 35 during the pre-dawn hours through
roughly mid-morning. Somewhat drier air around 850 mb looks to
overrun the near surface moisture during the afternoon, allowing for
skies to gradually clear and very sticky, humid highs in the upper
80s across the hill country central texas to mid to upper 90s along
the rio grande.

Long term (Wednesday night through Monday)...

longwave troughing established across the western half of the
country will allow for another disturbance to approach the southern
plains from the pacific Wednesday night and Thursday. This
disturbance is expected to lift well north of south central texas
into the central plains as it crosses the rocky mountains Thursday.

As a result, the main impact to sensible weather appears to be
increasing breezy southeast winds Wednesday night and Thursday as lee
troughing deepens along the front range in response to the
disturbance. A few warm air advection type showers may be able to
develop during the day on Thursday as a result of this strengthening
flow, possibly lingering into Friday. Overall coverage of this rain
still appears to be very low and only maintaining 10-20 percent rain
chances during this time as a result.

Upper ridging builds in from the east Saturday through Monday,
shunting any potential for showers or thunderstorms to the higher
terrain of mexico. One or two of these thunderstorms may be able to
make a run for val verde county each day during the late afternoon or
evening hours. Otherwise, expect highs in the long term portion of
the forecast to range from the mid 80s in the hill country to mid 90s
along the rio grande with lows generally in the 70s.

Fire weather...

a brief window for elevated fire weather conditions will exist for
val verde county from midday through mid-afternoon behind the front.

Drier air moving into the region will result in minimum relative
humidity values falling to near 10 percent during the afternoon
hours. Despite near normal rainfall over the past 30 days, 14- and 7-
day rainfall departures are below normal for this time of year and
this afternoon's very low humidity may help result in a window for
concern for fire starts in fine or grassy fuels. Greenness maps and
fuel moisture observations indicate heavier fuels are still carrying
above normal moisture from rainfall observed earlier this month. Low
level moisture quickly returns Wednesday as the cold front lifts back
across the region as a warm front, minimizing any fire weather
conditions through the remainder of the forecast period.

Preliminary point temps pops
Austin camp mabry 88 69 89 75 88 60 0 10 10 10
austin bergstrom intl airport 88 69 90 75 88 60 - 10 10 10
new braunfels muni airport 90 69 91 75 89 40 0 10 10 10
burnet muni airport 86 66 88 72 86 50 0 10 10 10
del rio intl airport 94 68 96 75 93 0 0 10 10 10
georgetown muni airport 87 68 88 74 87 60 0 10 10 10
hondo muni airport 91 68 94 76 93 30 0 10 10 10
san marcos muni airport 89 69 90 74 89 50 - 10 10 10
la grange - fayette regional 88 75 91 76 90 60 10 10 10 10
san antonio intl airport 91 70 91 76 90 30 0 10 10 10
stinson muni airport 92 71 92 77 91 30 0 10 10 10

Ewx watches warnings advisories
None.

Aviation... Treadway
short-term long-term... Huffman


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SDRT2 - 8773037 - Seadrift, TX 97 mi38 min SSE 18 G 20 83°F 81°F1005.5 hPa

Wind History for Seadrift, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Randolph Air Force Base, TX18 mi2.2 hrsN 1410.00 miOvercast77°F54°F46%1006.3 hPa
New Braunfels Regional Airport, TX21 mi77 minNE 1010.00 miFair82°F54°F38%1005.6 hPa

Wind History from RND (wind in knots)
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2 days ago----S12S10SE9S10SE7SE8SE6SE8SE10S7S6S5S6S5SE3CalmS4CalmCalmSE4CalmE6

Tide / Current Tables for Port Lavaca, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Tue -- 04:25 AM CDT     -0.20 feet Low Tide
Tue -- 06:32 AM CDT     Sunrise
Tue -- 08:52 AM CDT     Moonset
Tue -- 03:16 PM CDT     1.15 feet High Tide
Tue -- 08:13 PM CDT     Sunset
Tue -- 11:06 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.1-0-0.1-0.2-0.2-0.100.20.40.60.80.91.11.11.11.11.11.110.90.80.70.6

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Austin/San Antonio, TX (15,3,4,5)
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Ground Weather Radar Station Austin/San Antonio, TX
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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.