Marine Weather and Tides
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
|Sunrise 7:25AM||Sunset 5:59PM||Wednesday January 22, 2020 1:29 AM CST (07:29 UTC)||Moonrise 5:40AM||Moonset 4:05PM||Illumination 9%|
7 Day Forecast for Marine Location Near Lost Creek, TXHourly EDIT Help
Area Discussion for - Austin/San Antonio, TX  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS64 KEWX 220451 AFDEWX
Area Forecast Discussion National Weather Service Austin/San Antonio TX 1051 PM CST Tue Jan 21 2020
AVIATION (06Z Aviation).
As an upper level disturbance approaches the region from the northwest and southeasterly surface flow increases moisture, ceilings continue to lower. MVFR cigs have already developed at KSAT at 04Z and the rest of the TAF sites are not far behind. Conditions will deteriorate through the early morning hours with IFR cigs expected before sunrise. LIFR ceilings look increasingly likely to impact all sites during the daytime, and fog development will also lower visibilities at times. Models have gone more pessimistic with the fog potential, and it now appears that IFR vsby conditions Wednesday are possible at all sites. Occasional LIFR visibility at the I-35 sites cannot be ruled out. In addition, rain showers will increase in coverage and intensity from 06-10Z, and though most of the activity will end by sunrise at DRT, showers will continue into Wednesday evening along the I-35 corridor. TSRA remains unlikely but not completely out of the question in the afternoon. Skies should begin to clear at the end of the period at KDRT, however improvement will be slow elsewhere with IFR and perhaps LIFR conditions carrying into Wednesday night.
PREV DISCUSSION . /ISSUED 212 PM CST Tue Jan 21 2020/
SHORT TERM (Tonight through Wednesday Night) . Clouds today have begun streaming in from the west creating a mix of clouds and sun through the afternoon hours. This cloud cover is the sign of the approaching pair of upper level shortwaves that are embedded in a large upper level Pacific trough. The lead shortwave is evident on GOES water vapor over Western New Mexico which lines up well with the position in the 12z suite of models. The shortwave will rapidly approach Texas this evening into tonight. The height falls and lift associated with the disturbance will be enough to spark off widespread light to moderate rain. With dewpoints in the 30s currently some of the rain across the west main not initially reach the ground, but as the atmosphere moistens and the rain spreads eastward overnight rain chances ramp up area wide from midnight tonight through the day tomorrow.
The surface trough which has been advertised for the last few days in the NAM continues to trend further south over Matagorda Bay which should keep the threat for stronger thunderstorms confined to areas off shore. As the surface low pressure, associated with the upper trough, moves across North Texas Wednesday evening into Wednesday night there should be sufficient lift and decent lapse rates which could spark off a few isolated thunderstorms for Wednesday afternoon into Wednesday night as the rain begins to push east of I-35.
Timing wise light rain will start across the west late this evening, reaching the I-35 corridor around or shortly after midnight. The light to moderate rain will continue across most of the area during the early morning hours through about noon on Wednesday before it begins shifting east as the second upper level shortwave arrives. Tomorrow afternoon the rain will begin to shift eastward, focusing along and east of US HWY 281. This is the window for a few isolated storms before the precipitation pushes to the east of the area overnight Wednesday into Thursday. All told areas of the Rio Grande Plains that need the most rain may only seen 1/4 of an inch while up to an inch is possible along and east of I-35. The greatest chance for rain will be along the Coastal Plains, closer to the coastal trough. 1 and 1/4 inches is possible in these areas and WPC has continued their marginal risk of excessive rainfall. The heaviest rainfall should be concentrated right along the coast and out of our area. In addition to the shower activity patchy fog will be possible Wednesday morning and through the day, but at this time no dense fog is expected with visibility only down to about 2 miles at its lowest.
Lows tonight and Wednesday night will run about 5-10 degrees above normal, but afternoon highs on Wednesday with the cloud cover, rain, and patchy fog will run near seasonal normals.
LONG TERM (Thursday through Tuesday) . The upper trough will continue to move across Texas Thursday and the flow will become northwesterly. A surface high will move into Central Texas and winds will be northerly Thursday and Thursday night. Sunny skies Thursday will warm temperatures to above normal. Clear skies and light winds Thursday night will allow for good radiational cooling and near normal lows Friday morning. The upper flow will become nearly zonal by Friday. The surface high will move off to the east turning the winds to the southeast bringing warmer, moister air back to the region. An old frontal boundary will move back northward through South Texas Saturday night and along with an upper shortwave trough will bring low chances for rain to the southern and eastern parts of our CWA Saturday night and Sunday. An upper ridge will build over the Southern Plains Monday. Tuesday a Pacific cold front will move into the region bringing the next chance for rain and isolated thunderstorms.
PRELIMINARY POINT TEMPS/POPS. Austin Camp Mabry 46 55 50 63 41 / 90 90 30 0 0 Austin Bergstrom Intl Airport 45 56 49 65 39 / 90 100 40 0 0 New Braunfels Muni Airport 48 58 51 66 41 / 90 100 20 0 0 Burnet Muni Airport 45 54 46 61 37 / 90 90 10 0 0 Del Rio Intl Airport 52 67 48 69 41 / 70 20 0 0 0 Georgetown Muni Airport 43 53 47 62 38 / 90 90 40 0 0 Hondo Muni Airport 51 61 49 70 40 / 90 90 10 0 0 San Marcos Muni Airport 47 57 49 66 39 / 90 100 30 0 0 La Grange - Fayette Regional 47 58 53 66 41 / 80 100 70 - 0 San Antonio Intl Airport 50 59 51 67 43 / 90 100 10 0 0 Stinson Muni Airport 51 61 52 68 43 / 90 100 10 0 0
EWX WATCHES/WARNINGS/ADVISORIES. None.
Short-Term/Aviation . KCW Long-Term . 17
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Austin City, Austin Camp Mabry, TX||4 mi||99 min||Var 6||10.00 mi||Overcast||52°F||39°F||64%||1025.1 hPa|
|Lago Vista TX, Rusty Allen Airport, TX||12 mi||35 min||SE 9 G 17||10.00 mi||Rain||46°F||44°F||95%||1022 hPa|
|Austin Executive Airport, TX||14 mi||55 min||SE 7||10.00 mi||Overcast||50°F||39°F||67%||1025.1 hPa|
|Austin-Bergstrom International Airport, TX||15 mi||37 min||ESE 6||8.00 mi||Light Rain||51°F||43°F||74%||1024 hPa|
|Georgetown, Georgetown Municipal Airport, TX||24 mi||34 min||SE 8||10.00 mi||Light Rain||47°F||43°F||86%||1023.3 hPa|
Link to 5 minute data for KATT
Wind History from ATT (wind in knots)
|1 day ago||N|
|2 days ago|
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GEOS 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 (2,6,7,8)(on/off)  Help
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