Tuesday, May23, 2017 L-36.com

Marine Weather and Tides
Presidio, 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 7:12AMSunset 8:44PM Tuesday May 23, 2017 2:00 AM CDT (07:00 UTC) Moonrise 3:52AMMoonset 4:52PM Illumination 6% 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 Presidio, TX
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location: 25.6, -109.05     debug

Area Discussion for - Midland/Odessa, TX
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Fxus64 kmaf 230536
area forecast discussion
national weather service midland/odessa tx
1236 am cdt Tue may 23 2017

Updated for the early cancellation of severe thunderstorm watch #
256 and for the 06z aviation discussion, which can be found below.

Thunderstorms continue to move east out of the area this evening,
and without expectation of additional development to the west, the
severe thunderstorm watch has been cancelled. Additional storms
are possible late tonight/early Tuesday morning as a cold front
pushes into the area, however, these storms are not expected to be

MainlyVFR conditions have returned as showers and thunderstorms
have moved to the east. However, a cold front will move into the
area late tonight, which could bring another round of
precipitation to area terminals. While thunderstorms will be
possible with the front, probability is too low to include mention
at this time, thus have gone with tempo -ra mention and will
monitor for -tsra and amend as needed. In the wake of the front,
winds will shift to the north and become gusty, and MVFR
conditions will return areawide. Periods of ifr ceilings are
possible through the morning, with a gradual improvement toVFR
expected areawide after 04/19z.

Prev discussion /issued 1034 pm cdt Mon may 22 2017/

update to cancel most of severe thunderstorm watch # 256.


a line of thunderstorms continues to move eastward over the
eastern permian basin, and expect the storms could move out of the
area around 23/06z. Until then, there appears to be enough
instability for a few of these storms to produce strong winds or
hail. Therefore, will leave the eastern most counties in severe
thunderstorm watch number 256, but trim the western counties
where storms have already past through, and there is little
expectation of redevelopment. A cold front will move into the
area late tonight with more showers and storms possible along and
behind it. Do not think there will be any more severe storms at
that time. An update will follow shortly for these changes.

Prev discussion... /issued 548 pm cdt Mon may 22 2017/

the latest aviation discussion is included below.


expect thunderstorms to become more widespread through 23/00z, so have
included a mention of tsra in all area terminals. Gusty and
variable winds could accompany any of the storms, in addition to
hail. Think thunderstorms could be east of all area terminals by
23/04z too. A cold front will move south into the area late
tonight with gusty north winds behind it. Ceilings will lower to
MVFR behind the front for a few hours, and could dip to ifr.

ExpectVFR conditions areawide after 23/17z.

Prev discussion... /issued 155 pm cdt Mon may 22 2017/
water vapor depicts will a defined a shrtwv trof INVOF nrn nm
tracking SE within NW flow aloft with trof axis extending sw
across nm. As lift assocd with shrtwv trof moves SE into ERN nm/w
tx it will encounter surface dwpnts around 55. Lift will be
modulated by mid level lr's 7h-5h of 8-8.5 lr's and mlcapes of
1000-1500 j/kg result. A low level thermal/moisture gradient will
develop across ERN nm too. This is a good pattern for tstms (mcs)
to develop in, bulk shear is forecast to be over 50kts and severe
storms are expected. 0-1km and 0-3km SRH do depict 300 m2/s2 or so
along the outflow, but lcls are high, thus a non-zero probability
of a tornado. Nam12 continues to have the qpf MAX across the e
and GFS a little farther w. Confidence is high that severe storms
will come out somewhere between ink-snk. There could even be 2
separate areas of storms, one that initiates in far SE nm or W pb
and another off to the NW initiating in ERN nm or the WRN S plain.

The forecast already has high pops in and will probably not make
too much change. Recent heavy rainfall across
mitchell/scurry/howard counties does raise concern for at least
localized flash flooding and responses along colorado river and
tributaries. A cold front will follow Tue am and models are in
agreement that post-frontal precip will develop. It will be
noticeably cooler Tue in wake of the front, but clouds will likely
break out late. Thereafter a modest warm-up on Wed followed by a
strong trend from the lower left to upper right. 85h temps 31c and
downslope wind will easily push temps into the u90s-l100s.

Dryline will probably hang up across far SRN cwfa, may be storm in
terrell co.. A little cooler but still hot fri-sat with a
possible front on Sunday.

Preliminary point temps/pops
Big spring 72 52 85 62 / 50 10 0 0
carlsbad 74 51 91 60 / 10 0 0 0
dryden 78 57 86 61 / 40 10 0 0
fort stockton 72 54 89 66 / 40 10 0 0
guadalupe pass 68 52 85 64 / 10 0 0 0
hobbs 69 48 84 58 / 20 10 0 0
marfa 75 48 88 55 / 20 10 0 0
midland intl airport 72 53 85 62 / 40 10 0 0
odessa 71 53 85 63 / 40 10 0 0
wink 74 52 89 60 / 30 10 0 0

Maf watches/warnings/advisories
Nm... None.

Tx... None.

Weather Reporting Stations
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Airport Reports
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Tide / Current Tables for Topolobampo, Sinaloa, Mexico
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Tue -- 03:27 AM MDT     -0.14 meters Low Tide
Tue -- 04:52 AM MDT     Moonrise
Tue -- 06:27 AM MDT     Sunrise
Tue -- 09:44 AM MDT     0.91 meters High Tide
Tue -- 03:07 PM MDT     0.14 meters Low Tide
Tue -- 05:51 PM MDT     Moonset
Tue -- 07:58 PM MDT     Sunset
Tue -- 09:14 PM MDT     1.26 meters High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Yavaros, Sonora, Mexico
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Tue -- 02:25 AM MST     -0.11 meters Low Tide
Tue -- 03:53 AM MST     Moonrise
Tue -- 05:26 AM MST     Sunrise
Tue -- 08:42 AM MST     0.97 meters High Tide
Tue -- 02:09 PM MST     0.25 meters Low Tide
Tue -- 04:54 PM MST     Moonset
Tue -- 07:02 PM MST     Sunset
Tue -- 08:13 PM MST     1.28 meters High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
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Weather Map
IR Satellite Image from GEOS

GOES Local Image of SouthCentralPlains    EDIT

Wind Forecast for Midland/Odessa, TX (3,6,7,8)
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Ground Weather Radar Station Tucson, AZ
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weather_mapweather_map weather_map

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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.