Sunday, July23, 2017 L-36.com


Marine Weather and Tides
Kerrville, TX

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:49AMSunset 8:36PM Sunday July 23, 2017 3:42 AM CDT (08:42 UTC) Moonrise 6:05AMMoonset 7:58PM Illumination 0% Phase: New Moon; Moon at 29 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 Kerrville city, TX
   Hourly   EDIT   Help
location: 30.01, -99.21     debug


Area Discussion for - Austin/San Antonio, TX
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus64 kewx 230809
afdewx
area forecast discussion
national weather service austin san antonio tx
309 am cdt Sun jul 23 2017

Short term (today through Monday)
Main weather impact highlight remains on the 104-108f heat index
values expected today and Monday. In addition, a few isolated to
scattered showers are expected today across the hill country and
portions of the southern edwards plateau.

A wind shear axis associated with a mid- and upper-level trough
across the northern texas coast is evident on water vapor imagery.

Northeasterly to easterly flow is occurring over the region due to
the trough's relative position with slight divergence implied due to
weak cyclonic vorticity advection this afternoon. Coupled with peak
heating and left-over boundaries from convection over the edwards
plateau this morning, this should support isolated to scattered
thundershowers over the hill country and southern edwards plateau.

While isolated, there could be a few showers near the i-35 corridor
north of comal county.

Many areas will not receive rain and thus have ample Sun and high
temperatures. Combined with the humidity levels, expect another day
of 104-108f heat index values across much of the region, minus the
hill country. This remains on the cusp to just below heat advisory
criteria but will continue the special weather statement
highlighting the danger. The hazardous weather outlook also reflects
the high heat indices.

By Monday, the upper-level low washes out across the northern gulf
along with its influence of promoting greater lift across the
region. Expect there to be little to no rain Monday with another day
of above normal hot temperatures. Will need to monitor closely if a
surgically placed heat advisory is warranted for select areas.

Long term (Monday night through Saturday)
Mid- to long-range will be persistently hot through at least Friday.

Heat advisories may become necessary late in the week as
temperatures look to reach the low to perhaps the mid 100s across a
good portion of the region. Heat index values could reach upwards of
110f in a few coastal plain locations.

Both the ecmwf, GFS and long-range ensemble models indicate both the
subtropical low-level ridge over the lower mississippi valley
strengthen in conjunction with a 595dm h5 ridge over the four corner
region. This will help suppress most shower activity minus the
lucky few that see a sea-breeze induced shower across the coastal
plains. Temperatures will rise into the upper 90s and low to even mid
100s from mid- to late-week.

Models indicate a back-door front approaching the area on Saturday
that could provide a slightly better chance for rain as it is
suggested to move through the area. While both the ECMWF and gfs
indicate this boundary near the region, little to no "cooler" air is
associated with the new airmass and hot temperatures appear to remain
a high likelihood through at least the weekend with limited chances
of any effective rainfall.

Preliminary point temps pops
Austin camp mabry 102 78 101 77 100 30 10 10 - 10
austin bergstrom intl airport 101 77 100 76 100 30 10 10 - 10
new braunfels muni airport 101 76 100 76 99 20 10 10 - 10
burnet muni airport 99 74 99 74 97 30 10 10 - 10
del rio intl airport 102 77 100 77 99 20 10 10 - 10
georgetown muni airport 100 76 100 76 99 30 10 10 - 10
hondo muni airport 103 75 102 76 100 10 - - - 10
san marcos muni airport 100 76 100 76 99 20 10 10 - 10
la grange - fayette regional 99 77 100 76 99 20 10 10 - 10
san antonio intl airport 100 77 100 78 99 10 - 10 - 10
stinson muni airport 101 76 101 77 99 10 - - - 10

Ewx watches warnings advisories
None.

Mesoscale aviation... Oaks
synoptic grids... Allen


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
Kerrville, Kerrville Municipal Airport/Louis Schreiner Field, TX7 mi48 minSSE 410.00 miFair77°F73°F87%1015.2 hPa
Fredericksburg, Gillespie County Airport, TX23 mi48 minS 310.00 miMostly Cloudy78°F69°F74%1014.9 hPa

Wind History from ERV (wind in knots)
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
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
Last 24hrSE3SE5SE5CalmS4SE6S7S7S6SE7S7S6SE10E9SE11
G15
SE9S7SE4E3S9S10SE7SE5S5
1 day agoSE5SE5SE3CalmCalmS6SE5S6S8SE8S7S10S9
G16
S9SE9SE9S6SE4SE4SE7S8SE9S5SE7
2 days agoSE5SE4CalmSE4S5S5S8S9S10
G14
S5S8S5SE4S6S7SE9S8SE4E4SE12SE9SE7S6SE3

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)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of SouthCentralPlains    EDIT
Geos

Wind Forecast for Austin/San Antonio, TX (4,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Austin/San Antonio, TX
   (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.