Saturday, March6, 2021
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Marine Weather and Tides
China Grove, TX

Version 3.4
NOTICE
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 6:53AMSunset 6:37PM Friday March 5, 2021 11:20 PM CST (05:20 UTC) Moonrise 12:40AMMoonset 11:24AM Illumination 50% Phase: Third Quarter Moon; Moon at 22 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 China Grove, TX
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location: 29.4, -98.4     debug


Area Discussion for - Austin/San Antonio, TX
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FXUS64 KEWX 060455 AFDEWX

Area Forecast Discussion National Weather Service Austin/San Antonio TX 1055 PM CST Fri Mar 5 2021

AVIATION (06Z Aviation). MVFR cloud deck is moving into the Hill Country and through Central Texas this evening and will continue farther south overnight into portions of the area. There are still some differences in the models on how fast the ceilings scatter out Saturday. Only other concern are the winds. Current gusts from the NW to N generally range from 15-25KT. Some gradual weakening is forecast early Saturday morning.

PREV DISCUSSION. /ISSUED 720 PM CST Fri Mar 5 2021/

UPDATE . We have allowed the Red Flag Warning to expire as RH values gradually recover. A secondary surge of high pressure will lead to winds remaining elevated overnight through the Hill Country and I-35 corridor. In addition, clouds are expected to develop north to south through the overnight. Have made some minor adjustments to the wind and sky forecast tonight.

PREV DISCUSSION . /ISSUED 415 PM CST Fri Mar 5 2021/

UPDATE . Update for fire weather below.

FIRE WEATHER . We have updated to issue a Red Flag Warning through 7PM this evening for the Rio Grande and southern Edwards Plateau. Wind gusts between 25 and 40 mph are occurring with RH values in the teens. These are critical fire weather conditions given the cured fuels in place. Elevated to near critical fire weather conditions are occurring elsewhere.

PREV DISCUSSION . /ISSUED 206 PM CST Fri Mar 5 2021/

SHORT TERM (Tonight through Saturday Night) . A frontal boundary pushed across the area this morning and early afternoon. In the wake of it, we are experiencing strong northwest winds of 10 to 20 mph with gusts up to 35 mph. Clouds continue to dissipate across the southeast as the front pushes into the middle Texas coast. There are some high clouds pushing from the southwest and over parts of the area, however, overall, partly to mostly sunny skies are anticipated for the rest of this afternoon and early evening. The main hazard weather concern through this evening will be fire weather across the Rio Grande due to low relative humidities and strong winds. Elevated winds of 10 to 15 mph are forecast to remain across the area through late tonight. Clouds return this evening and spread across most areas overnight as a second surge of low level moisture arrives from the north. Forecast soundings show the moisture mixing down overnight to bring low clouds and breezy conditions from the north. Clouds will remain across South Central Texas through mid afternoon on Saturday. Highs will be a bit cooler with mid 60s across the Hill Country to near 70 across the southwest counties thanks to dense cloud coverage . On Saturday evening into the overnight hours, clouds begin to increase areawide with overnight lows in the lower 40s across the Hill Country to near 50 along the Rio Grande.

LONG TERM (Sunday through Friday) . Zonal flow will last for most of the extended period, resulting in a slow warming trend through next week. While cloud cover will be present for most of the period, it will generally be associated with passing, weak, upper level waves and/or the typical late night and early morning low stratocumulus in southerly flow off the Gulf. Despite the clouds, no precipitation is expected through next Thursday, and the southerly low level flow, and southwesterly mid and upper level flow, will support warm conditions. Look for highs in the 70s early next week, with 80s Wednesday through Friday. This is above the National Blend of Models (NBM) deterministic values, but close to the 50th percentile (NBM50) values which are more of a bulk average with less lagged bias correction.

The last day of our forecast (next Friday) will be the beginning of pattern change that will last into the following week. For Friday, we expect a slight chance of showers and thunderstorms for the coastal plains north of I-10 and east of I-35. QPF will be scattered and light. Just beyond this forecast, from the early evening of March 13th through the evening of the 14th, the ECMWF and GFS are in fair agreement on a favorable pattern for severe storms and/or heavy rain for south central Texas. While it is too early to nail down specifics, of concern are very low mid level (500 mb) temps, which could favor large hail production.

PRELIMINARY POINT TEMPS/POPS. Austin Camp Mabry 50 66 43 71 47 / 0 0 0 0 0 Austin Bergstrom Intl Airport 50 67 42 71 45 / 0 0 0 0 0 New Braunfels Muni Airport 51 69 44 71 48 / 0 0 0 0 0 Burnet Muni Airport 47 63 41 68 45 / - - 0 0 0 Del Rio Intl Airport 49 70 50 70 53 / 0 0 0 0 0 Georgetown Muni Airport 48 65 40 70 44 / 0 0 0 0 0 Hondo Muni Airport 48 69 44 71 49 / 0 0 0 0 0 San Marcos Muni Airport 50 67 42 71 46 / 0 0 0 0 0 La Grange - Fayette Regional 52 67 43 71 46 / - 0 0 0 0 San Antonio Intl Airport 51 67 45 70 49 / 0 0 0 0 0 Stinson Muni Airport 51 68 45 70 49 / 0 0 0 0 0

EWX WATCHES/WARNINGS/ADVISORIES. None.

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


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Antonio, Stinson Municipal Airport, TX6 mi28 minN 13 G 2310.00 miFair59°F41°F51%1019.7 hPa
San Antonio, San Antonio International Airport, TX10 mi30 minNNW 810.00 miA Few Clouds58°F41°F53%1020.1 hPa
San Antonio - Kelly Field, TX10 mi25 minN 14 G 2510.00 miFair59°F43°F54%1020.3 hPa
Randolph Air Force Base, TX12 mi25 minNNW 1310.00 miFair58°F43°F57%1019.9 hPa
Castroville Municipal Airport, TX24 mi46 minN 15 G 197.00 miFair62°F39°F43%1022 hPa

Link to 5 minute data for KSSF

Wind History from SSF (wind in knots)
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Last 24hrSE8CalmN3CalmSE3CalmCalmCalmW3SW5W10W10
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1 day agoSE4CalmCalmCalmCalmCalmCalmCalmN3CalmSE6SE5S9SE10
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2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS56SE5SE5S10
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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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