Thursday, July20, 2017 L-36.com


Marine Weather and Tides
Frierson, LA

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 6:20AMSunset 8:21PM Thursday July 20, 2017 5:45 PM CDT (22:45 UTC) Moonrise 2:33AMMoonset 4:43PM 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 Frierson, LA
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location: 32.35, -93.63     debug


Area Discussion for - Shreveport, LA
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Fxus64 kshv 201947
afdshv
area forecast discussion
national weather service shreveport la
247 pm cdt Thu jul 20 2017

Discussion
Another hot day across the four state region with many locations
having reached or exceeded 105 degree heat index temperatures this
afternoon. Radar is currently void of any precipitation across our
region unlike this time on Wednesday so feel like it's safe to go
with a rain free forecast tonight with any late isolated activity
being handled with nowcasts if necessary. Looking at at least one
more day of excessive heat areawide on Friday before we see a
change to the upper level pattern which should translate to
increasing rain chances for most of the region which should result
in slightly cooler temperatures for late weekend into early next
week.

The pattern we are currently under, a broad ridge of high pressure
aloft centered across ok, ar and tn, will begin to slowly shift
eastward into the tenn valley leaving behind a much weaker ridge
axis into ok for the weekend. Meanwhile, a piece of a longwave
trough off the eastern seaboard will become cutoff from the
westerlies and will begin retrograding westward across the fla
pndl on Fri and into southern la. By Sat into sun. This will
result in increasing moisture, first across our extreme southeast
zones for Sat and areawide for Sunday with pwats increasing once
again to near 2 inches by Sunday. Thus, high end chance pops are
warranted across mainly our southern and eastern most zones by
sun.

There should be little upper ridging left across the southern
plains by the weekend into early next week and this will result in
an upper level shortwave moving into the plains on Sunday with
the possibility of nocturnal thunderstorms moving our way from the
north Sunday night and setting up shop across at least our
northern most zones on Monday. A shear axis should be left behind,
in the wake of the upper shortwave, for Tue into Wed which should
result in at least at slight chance to low end chance variety
convection along and north of the i-20 corridor through the middle
part of next week before we see upper ridging beginning to dominate
once again across the southern plains towards the end of next
week.

Thanks for the coordination today fwd, lzk, and jan. Prelims to
follow... 13.

Prev discussion issued 212 pm cdt Thu jul 20 2017
aviation...

vfr conditions to prevail throughout the 18z TAF pd, as an upper
level ridge of high pressure remains in control of our weather
pattern. A few shwrs tstms will be possible through sunset but
will be too isold to mention in tafs attm, so will amd as
necessary. Otherwise, light and generally vrbl winds to continue
through the pd. 12

Preliminary point temps pops
Shv 77 97 77 93 10 20 20 30
mlu 76 97 76 93 10 20 20 30
deq 75 97 73 95 10 10 10 10
txk 76 96 76 94 10 10 10 20
eld 74 96 74 93 10 20 20 30
tyr 77 96 77 94 10 20 20 20
ggg 77 96 77 93 10 20 20 20
lfk 75 95 75 93 10 20 20 30

Shv watches warnings advisories
Ar... Heat advisory until 7 pm cdt Friday for arz050-051-059>061-
070>073.

La... Heat advisory until 7 pm cdt Friday for laz001>006-010>014-
017>022.

Ok... Heat advisory until 7 pm cdt Friday for okz077.

Tx... Heat advisory until 7 pm cdt Friday for txz096-097-108>112-
124>126-136>138-149>153-165>167.

12 13


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Barksdale Air Force Base, LA11 mi48 minE 310.00 miA Few Clouds95°F72°F49%1016.7 hPa
Shreveport, Shreveport Regional Airport, LA13 mi50 minN 010.00 miA Few Clouds95°F75°F53%1016 hPa
Shreveport, Shreveport Downtown Airport, LA14 mi53 minNNE 310.00 miPartly Cloudy98°F73°F45%1016.2 hPa

Wind History from BAD (wind in knots)
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Last 24hrSW6NE3SE5CalmCalmCalmCalmCalmSE3CalmCalmSE3CalmCalmSW3CalmW5W8S4SW4CalmCalmNE3E3
1 day agoE3E5E9SE3SE4CalmCalmCalmSE3CalmCalmSE5CalmCalmCalmCalmW5CalmCalmCalmCalmCalmW4Calm
2 days agoE5E4CalmE3CalmCalmE3CalmCalmCalmCalmSE4CalmCalmSW3CalmCalmCalmCalmS5SE5CalmCalmCalm

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
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Midwest    EDIT
Geos

Wind Forecast for Shreveport, LA (18,4,5,8)
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Ground Weather Radar Station Shreveport, LA
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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.