Monday, May21, 2018 L-36.com


Marine Weather and Tides
Preston, TX

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 6:19AMSunset 8:26PM Monday May 21, 2018 10:01 AM CDT (15:01 UTC) Moonrise 11:42AMMoonset 12:40AM Illumination 42% Phase: First Quarter Moon; Moon at 7 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 Preston, TX
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location: 33.84, -96.62     debug


Area Discussion for - Fort Worth, TX
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Fxus64 kfwd 211119 aaa
afdfwd
area forecast discussion... Updated
national weather service fort worth tx
619 am cdt Mon may 21 2018

Aviation
12z tafs
high clouds continue to stream across the region this morning, but
where breaks in the clouds are occurring, a combination of fog,
near-surface stratus, and cumulus clouds with bases around 4-5 kft
has been developing. Any of these may impact the area airports
this morning through about 15z, but thenVFR conditions are
expected for the remainder of the day. The clouds between 4-5 kft
will remain for much of the day, though. Light and variable winds
may prevail from a mostly easterly direction but should return to
a southerly direction tonight. With wet soils still in place,
another round of fog and stratus is possible late tonight and
into Tuesday morning.

Jldunn

Short term issued 352 am cdt Mon may 21 2018
today through Tuesday night
weak upper level ridging will build across the region today, but
that does not mean a precipitation-free day. A weak upper level
trough is still departing the region this morning, and some weak
showers may occur across our southern and southeastern counties
as this trough departs the area. The upper level ridge will build
in from the west this afternoon, and this can be seen in the
forecast soundings as drying increases within the mid and upper
levels. This drying trend is not as pronounced in our southeastern
counties where the environment will remain in a col pattern
characterized by an uncapped environment with pwats over 1.5
inches. A few additional showers or an isolated thunderstorm may
occur in this area this afternoon. However, the lack of a forcing
mechanism may result in less coverage than model guidance suggests
and kept pops at 20-30 percent. Strong or severe storms are not
expected mainly due to weak winds resulting in disorganized
convection.

Any rain this afternoon should quickly dissipate this evening with
a quiet overnight period expected. The upper level ridge will be
nudged south as a shortwave trough moving into west texas works
against it. Overnight tonight there's a low chance a few showers
may occur in our eastern counties where pwats remain high, but did
not mention this in the forecast at this time. Without the upper
level ridge on Tuesday, a few diurnally-driven showers or storms
may try to develop, but these attempts may be squashed by the
drier air in the mid and upper levels and lack of a decent
forcing mechanism. Remnants of a storm complex across west texas
on Tuesday may bring some light rain to our western counties late
Tuesday afternoon or evening.

Where the skies are clearing underneath high clouds this morning,
fog is quickly developing over wet soils. This fog should
dissipate by mid morning. Brief instances of dense fog may occur,
but with high clouds continuing to stream across the region, it
appears unlikely a dense fog advisory will be needed. High
temperatures on Monday and Tuesday will be in the 80s with
overnight lows in the 60s and lower 70s.

Jldunn

Long term issued 352 am cdt Mon may 21 2018
Wednesday through memorial day weekend
the upper low that will be anchored over the southwest early in
the week will dislodge on Wednesday. With ridging aloft amplifying
into the upper midwest, the trough will be forced to eject
northeastward into the northern rockies. This will open the door
for subtropical ridging over mexico to nose into texas. Although
this will stifle rain chances for much of the region Wednesday
through Friday, the mexican ridge building in from the southwest
will struggle to bridge the gap to the high amplitude ridge over
the mississippi valley. As a result, east texas will be under a
col within an axis of rich pw. While there won't be anything to
organize convective development, with the weakness aloft, daytime
heating should be sufficient for scattered showers and
thunderstorms in our eastern zones each day. Though unlikely to
pose a severe threat, these slow-moving efficient rain producers
could result in some flooding issues.

The east texas activity will be the northwestern fringe of a much
larger area of deepening tropical moisture that will consume the
gulf of mexico late in the week. The convection within this trough
will increase each day, encouraging the intensification of a
closed low. Available extended guidance (and associated ensemble
members) continue to show considerable spread with the location
and intensity of the resulting cyclone, but regardless of the
solution, this will mean northerly flow above texas for the
memorial day weekend. While there is better consensus with the
flow, the trend is toward weaker cold advection into the plains
with a more languid cold front. Northerly surface winds should
eventually reach north and central texas during the upcoming
holiday weekend, and Saturday's shower storm chances are related
to this frontal passage. However, temperatures may remain above
normal. If the gulf low favors the more westerly solutions,
showers and thunderstorms may continue to disrupt outdoor plans in
east texas. But the resulting subsidence to the west would
overwhelm any low-level cold advection, and an unpleasantly hot
memorial day could result.

25

Preliminary point temps pops
Dallas-ft. Worth 86 72 88 71 91 10 10 20 10 10
waco 85 70 88 70 91 30 10 20 10 10
paris 83 68 85 68 89 10 10 20 10 30
denton 85 68 87 68 90 10 10 20 10 10
mckinney 85 67 86 68 90 10 10 20 10 20
dallas 87 73 88 73 91 10 10 20 10 10
terrell 85 69 86 69 90 10 10 20 10 20
corsicana 84 70 87 70 90 30 10 20 10 20
temple 84 68 88 68 91 30 10 20 10 10
mineral wells 85 67 87 67 90 10 10 20 10 10

Fwd watches warnings advisories
None.

82 25


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sherman/Denison, Grayson County Airport, TX8 mi66 minN 010.00 miFair71°F65°F84%1018.6 hPa
Durant, Eaker Field Airport, OK14 mi66 minNNE 67.00 miFair70°F64°F83%1018.3 hPa

Wind History from GYI (wind in knots)
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Last 24hrW3SE3S6SW6S5SW8SW8W5N10N8N3NE4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN6E5
1 day agoS11S15S12S15
G23
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S7SE8SE6E5E5E6SE9SE13
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W6CalmNW8NE5NE3W10
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2 days agoS10S8S9S9S5S9
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S8SE11SE14SE10SE11
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SE8SE9SE10SE11SE9S9SE10S8S8S9S9S12
G18
S10

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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GOES Local Image of Midwest    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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Fort Worth, TX (11,2,3,4)
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Ground Weather Radar Station Dallas/Fort Worth, 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.