Friday, March24, 2017 L-36.com


Marine Weather and Tides
Preston, TX

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:21AMSunset 7:42PM Friday March 24, 2017 5:01 PM CDT (22:01 UTC) Moonrise 4:14AMMoonset 3:20PM Illumination 8% Phase: Waning Crescent; Moon at 27 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 242057
afdfwd
area forecast discussion
national weather service fort worth tx
357 pm cdt Fri mar 24 2017

Discussion
Water vapor and visible satellite imagery shows a powerful upper
low moving through the southern plains this afternoon. The center
of the low is moving through the tx panhandle with a rather large
dry slot surging eastward across much of texas. At the surface, a
dryline is positioned just west of the metroplex and has been
nearly stationary over the last 90 minutes or so. East of the
dryline, a narrow band of showers and a few thunderstorms
continues to push eastward within an area of moderate to strong
warm advection. So far the convection has been rather
unimpressive, likely inhibited by a general lack of surface based
instability. Temperatures where clouds/precipitation are occurring
are relatively cold, with readings in the mid 50s. So despite the
dryline still being to the west, and what appears to be increasing
forcing for ascent, the atmosphere has been slow to recover in
the wake of ongoing precipitation. The only exception at this hour
is across our far southeastern counties where a very narrow axis
of surface based instability has developed. A new line of
convection has attempted to develop in this area and this should
continue to be the main area of concern through the remainder of
the afternoon. This area is generally from cameron to groesbeck to
palestine and areas southeast of there. For the remainder of this
afternoon/evening, best rain chances will be across the far
eastern counties with a limited severe weather threat.

Concerning the wind advisory/red flag warning... We'll go ahead
and pull grayson/collin/dallas from the red flag warning given
that rh values will likely remain higher east of the nearly
stationary dryline. Even if the dryline does drift farther east,
rh values are likely to remain above critical thresholds this
evening. The wind advisory will remain in place through early
evening. Southwest winds 20 to 30 mph are likely to continue with
higher gusts.

With the main line of showers/storms moving to the east by this
evening, most areas will remain precipitation free through the
overnight hours. There is a small chance for additional convective
development along the actual cold front as the upper low moves
east overnight. This would be most likely to occur across our far
southeast counties.

Tomorrow should be a rather nice day behind this system with
temperatures in the 70s and dry northwest winds but another
shortwave will be quick on its heels moving into the 4-corners
region Saturday night. As southerly flow commences, moisture will
return northward into Sunday. An axis of moderate instability is
expected to develop across the eastern 2/3 of the CWA by Sunday
afternoon as forcing for ascent increases. A dryline should also
be positioned across our western counties. Dynamically, this setup
is favorable for severe weather, however the main question will be
the quality of moisture return through Sunday afternoon. If
moisture can recover sufficiently, then an appreciable severe
weather threat will exist. We'll have the highest pops generally
along and north of of i-20 into our northeast counties late Sunday
afternoon into the evening hours.

Beyond Sunday, the next potential big weather maker will arrive
during the middle of next week. A powerful upper low will swing
through texas late Tuesday into Wednesday initially bringing a
severe weather threat. As the closed low gets closer, deep
southerly flow will keep a steady fetch of gulf moisture flowing
into the region which would result in a heavy rainfall potential.

We'll continue to monitor the specifics of this event over the
coming days given the consistent signals in the model guidance.

Dunn

Aviation
/issued 1254 pm cdt Fri mar 24 2017/
the morning showers and thunderstorms have moved to the east of
all the dfw metroplex TAF sites leaving behindVFR conditions.

Winds will begin to veer by mid-afternoon as the dryline moves
from west to east. Winds will increase to around 20 kts, gusting
to around 30 kts. A secondary wind shift will arrive this evening
as the front sweeps from northwest to southeast.VFR conditions
will continue through the rest of this TAF cycle.

For waco, thunderstorms will remain in the vicinity of act until
shortly after 18z, but should continue to trek to the east through
the afternoon. Winds will not be as strong, with sustained winds
below 20 kts.VFR conditions will also prevail through this taf
cycle at act.

Hernandez

Preliminary point temps/pops
Dallas-ft. Worth 53 74 55 85 58 / 5 0 0 30 30
waco 51 76 53 84 59 / 5 0 0 10 20
paris 53 71 51 81 58 / 20 0 0 20 50
denton 51 72 51 84 56 / 5 0 0 30 20
mckinney 52 72 51 82 57 / 10 0 0 30 30
dallas 55 75 56 85 59 / 10 0 0 30 30
terrell 53 73 52 83 58 / 10 0 0 20 30
corsicana 54 75 54 84 59 / 20 0 0 20 20
temple 51 77 55 84 59 / 5 0 0 10 10
mineral wells 50 74 52 87 53 / 0 0 0 20 10

Fwd watches/warnings/advisories
Red flag warning until 7 pm cdt this evening for txz091-092-
100>103-115>118-129>133-141>144.

Wind advisory until 7 pm cdt this evening for txz091-092-100>102-
115>117-129>131-141.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sherman/Denison, Grayson County Airport, TX8 mi66 minSSE 1410.00 miFair71°F50°F49%1008.1 hPa
Durant, Eaker Field Airport, OK14 mi61 minS 1110.00 miFair70°F50°F50%1008.5 hPa

Wind History from GYI (wind in knots)
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Last 24hrS20
G31
S21
G30
S19
G32
S20
G25
SE16S19
G25
S22
G26
SE22
G28
S21
G27
S23
G32
S9S10SE13
G20
SE15S15
G22
S13
G19
S15
G21
SW17
G23
SE13S16SE15
G21
S15S16S14
G19
1 day agoE11E11
G18
E14
G17
E8E8SE7SE7SE7SE7E7E7E8E8E9SE8SE13
G16
S18
G23
S15S17
G24
S20
G25
S20
G24
S24
G30
S27
G30
S21
G31
2 days agoSW16SW13S7SE8S12SE8S9S7S5S7S7NE4NE5NE5NE5E6SE5E8SE8SE9E7E8E10E11
G15

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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Weather Map
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IR Satellite Image from GEOS
east_satellite

GOES Local Image of Midwest    EDIT
Geos

Wind Forecast for Fort Worth, TX (18,4,5,8)
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Ground Weather Radar Station Dallas/Fort Worth, TX
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weather_mapweather_map weather_map

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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.