Sunday, April22, 2018 L-36.com


Marine Weather and Tides
Alvord, TX

Version 3.4
What's New / NOTES
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.
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.

Sunrise 6:47AMSunset 8:05PM Sunday April 22, 2018 1:07 PM CDT (18:07 UTC) Moonrise 11:45AMMoonset 1:07AM Illumination 49% 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 Alvord, TX
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location: 33.36, -97.69     debug


Area Discussion for - Fort Worth, TX
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Fxus64 kfwd 221148
afdfwd
area forecast discussion
national weather service fort worth tx
648 am cdt Sun apr 22 2018

Aviation
12z tafs
extensive cloud cover persists across much of north texas this
morning although continued downglide on the back side of the upper
low has allowed for some erosion of the thicker stratus. A large
break in the cloud cover is now entering the metroplex and we'll
start the tafs off with only tempo MVFR CIGS for the next few
hours. Persistent northwest winds around 15 kt can be expected
through the day with skies scattering out through midday. There
will still be ample moisture wrapped around the upper low and
there is some indication that we'll see another intrusion of low
clouds from the east late tonight into early Monday morning. This
seems most likely at dfw dal around sunrise on Monday. We've
included a brief period of MVFR CIGS during this time to account
for this. Otherwise, any additional cloud cover that develops
tonight should clear by mid morning on Monday.

Dunn

Short term issued 250 am cdt Sun apr 22 2018
today and tonight
high pressure is building into north texas behind yesterday's cold
front resulting in gusty northwest winds and cooler temperatures.

Strong isentropic downglide is in progress across the region on
the back side of the upper low as it slowly continues eastward.

Despite the downward vertical motions, extensive moisture remains
trapped beneath the frontal inversion resulting in mostly cloudy
conditions across a good portion of north and central texas. The
cloud cover is likely to linger into at least early afternoon,
especially east of i-35. To the west where there are already some
breaks in the clouds, clearing may occur as early as mid morning.

It will be breezy today with northwest winds 15 to 25 mph making
highs in the 60s and lower 70s feel a little cooler.

By tonight the upper low will be over the mid mississippi river
valley with some wrap around moisture still extending into our far
eastern counties. Some of these areas may remain mostly cloudy
well after dark. Winds are expected to diminish some later tonight
with lows in the upper 40s and low 50s areawide.

Dunn

Long term issued 250 am cdt Sun apr 22 2018
Monday onward
a fairly active weather pattern will continue through the
upcoming week with a pair of fronts that will bring additional
shower storm chances. However, the potential for strong or severe
storms is expected to be limited throughout this time. Otherwise,
temperatures are largely expected to be near or slightly below
seasonal normals.

Northwest winds will remain in place on Monday with some lingering
clouds on the back edge of a departing low pressure system.

Continued cloud cover should hold temperatures in the low 70s
across our northeast while highs climb to near 80 farther
southwest where skies will be clear. Winds will come back around
to the E SE on Tuesday, but will remain fairly light with a
diffuse surface pattern across the southern plains. Tuesday should
feature our only above-normal highs for the entire week with
upper 70s and 80s likely. Meanwhile, a northern stream shortwave
will be diving southward through the central us. Due to this
disturbance's trajectory and the disorganized flow regime through
the low-levels, moisture return will be quite poor ahead of this
shortwave and its attendant cold front. These features will pivot
through the southern plains Tuesday night through Wednesday,
although discrepancies remain in their anticipated time of
arrival.

The GFS remains the fastest solution with the midweek cold front,
bringing it across the red river into north texas on Tuesday
evening. The ECMWF and cmc are about 12-18 hours slower, with the
nam roughly splitting the difference. Have kept the forecast
toward the middle of the road at this point until there is some
better agreement among guidance, so the timeline discussed here is
quite likely to change in the next couple of days. At this point,
it appears a chance for showers and storms will return Tuesday
evening night as an area of storms should form along the front
across parts of northwest texas where some elevated instability
will exist. This activity will be steered eastward into our
forecast area where it will encounter a much less favorable
environment for deep convection with only a couple hundred j kg of
elevated instability available. It will also become undercut by
the front as it continues pushing south through north texas
Wednesday morning. A broad area of rain with some embedded
lightning strikes is likely behind the cold front through much of
the day Wednesday. This means high temperatures should occur in
the morning in north texas or early afternoon in central texas
just prior to the front's arrival, at which point they should
fall into the 50s where they will linger through much of the day.

Have shown showers with only isolated thunderstorms in the worded
forecast due to meager elevated instability in place behind the
front. Activity will taper off from north to south Wednesday night
as the front pushes into southeast texas.

A break in the rain chances should occur on Thursday as shortwave
ridging occurs behind the departing trough. Winds will quickly
come back to the south, but moisture will continue to be scant.

By late Thursday, the second in the duo of northern stream
disturbances will be approaching with a weaker cold front than its
predecessor. This system is progged to affect the area Thursday
night into Friday, although the confidence in the finer details
remains quite low. Models continue to differ with the trajectory
of the primary vort maximum and the strongest forcing with this
second disturbance. The operational GFS is keeping the main energy
well northeast of texas, while the ECMWF brings it right through
the forecast area with a higher chance for rain and storms. Either
way, the potential for strong or severe storms is expected to be
vastly limited once again without sufficient moisture recovery to
produce noteworthy instability.

-stalley

Preliminary point temps pops
Dallas-ft. Worth 68 52 77 55 82 0 0 0 0 5
waco 69 50 79 53 82 0 0 0 0 0
paris 63 51 69 52 76 0 0 5 0 0
denton 67 50 76 51 79 0 0 0 0 5
mckinney 66 51 74 52 78 0 0 0 0 0
dallas 68 54 76 56 81 0 0 0 0 0
terrell 68 52 75 52 79 0 0 0 0 0
corsicana 68 53 75 53 79 0 0 0 0 0
temple 71 50 80 54 83 0 0 0 0 0
mineral wells 69 48 77 51 81 0 0 0 0 5

Fwd watches warnings advisories
None.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Decatur, Decatur Municipal Airport, TX9 mi72 minWNW 7 G 1410.00 miMostly Cloudy56°F43°F62%1020.3 hPa
Bridgeport, Bridgeport Municipal Airport, TX15 mi72 minNNW 8 G 1610.00 miMostly Cloudy57°F43°F60%1021.3 hPa
Bowie Municipal Airport, TX17 mi72 minNW 14 G 1910.00 miOvercast56°F43°F62%1020.3 hPa

Wind History from LUD (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmN6N3CalmCalmNW5CalmCalmCalmNW10
G17
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CalmNW7NW4CalmNW5NW4NW9
G17
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1 day agoSE15
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SE3E5E4SE4E6SE4SE6SE8
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SE5CalmCalmCalmCalm
2 days agoCalmN7NE9
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NE5NE5NE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE6E8
G14
SE18
G23
E11
G22
E12
G19
SE12
G18

Tide / Current Tables for
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Weather Map and Satellite Images
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GOES Local Image of SouthCentralPlains    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 Fort Worth, TX (14,3,4,5)
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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.