Thursday, August24, 2017 L-36.com


Marine Weather and Tides
Dardanelle, AR

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 6:38AMSunset 7:50PM Thursday August 24, 2017 5:34 AM CDT (10:34 UTC) Moonrise 8:33AMMoonset 8:51PM Illumination 5% Phase: Waxing Crescent; Moon at 2 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 Dardanelle, AR
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location: 35.25, -93.23     debug


Area Discussion for - Little Rock, AR
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Fxus64 klzk 240847
afdlzk
area forecast discussion
national weather service little rock ar
347 am cdt Thu aug 24 2017

Short term Today through Friday night
fairly quiet weather for the short term forecast as the CWA sits
in somewhat dry northwest flow on the southern periphery of
longwave troughing across the eastern CONUS with upstream ridging.

In the near term, surface pressure gradient winds remain just
strong enough to keep the immediate surface layer mixed enough
such that nocturnal pbl sfc-layer decoupling and fog formation is
limited. Areas of patchy have been and will likely remain to be
restricted to low-lying areas in the ouachitas and ozarks which
are more favorable to surface decoupling.

Models are in very good agreement Thursday through Friday morning
through the entire forecast suite. Ene to E flow at the surface
will continue and temperatures will remain below average for
mid late august. No precipitation is expected.

By Friday afternoon, models begin to diverge ever so slightly. By
this time, the strength position of harvey and its outflow may
start to affect the weather here in arkansas. For Friday, this
would be in the form of cloud cover. Models agree that fairly
dense mid and high level clouds will be across arkansas on Friday.

The NAM is a bit more potent with a shortwave moving across
oklahoma. The result is a bit more dense cloud cover... And
possibly even enough lift for some precipitation, however, this
would likely be in the form of virga as low mid level easterlies
keep significant dry air above the surface. The cmc is somewhat
similar and both models result in temperatures 5 to 10 degrees
below the GFS euro sref. Have went with the latter solutions for
now but this may have to be revised.

Ultimately, the forecast Friday onwards will heavily depend on the
strength and position of tropical system harvey... Beginning with
cloud cover and its affects on insolation heating.

Long term Saturday through Wednesday
at the start of the long term period, much of the nation's attention
will be on the texas gulf coast as what may be TS or even hurricane
harvey will be making landfall somewhere near corpus christi.

Impacts could be significant given some of the latest model
precip outputs of 20+ inches of rain in an area between corpus
christi, san antonio and houston...

here locally, surface high pressure will be positioned northeast of
the region centered over the eastern great lakes. This will provide
an easterly to northeasterly flow at the surface and keep below
normal temperatures in place. Aloft, mid level
ridging will continue to dominate the pattern across the western us
with a nwrly flow over ar. Into the early part of next week, a cold
front will make its way through the state bringing a slight increase
in rain chances with it. High pressure building in over the state in
the wake of the cold front will keep cooler air in place across
the state.

Toward the tail end of the long term period, the remnants of harvey
may approach the state from the southwest. One big difference with
overnight model runs would be agreement between the gfs ECMWF in
terms of timeline of eastward progression and track. So, once harvey
is ashore, it will hang around the texas coast for sometime dumping
a tremendous amount of rain, then by mid week it will track toward
the toledo bend region and ultimately into northern mississippi.

This could provide mainly southern southeaster sections of the state
with some locally heavy rainfall. Even with the agreement seen on
this one particular model cycle, still plenty of unknowns with the
ultimate track. Stay tuned to the latest outlooks and updates over
the coming days.

Preliminary point temps pops
Batesville ar 82 62 83 63 0 0 0 10
camden ar 87 67 86 69 10 10 10 10
harrison ar 80 60 82 60 0 0 0 10
hot springs ar 83 66 84 67 0 0 10 10
little rock ar 85 65 84 66 0 0 0 10
monticello ar 85 67 87 68 10 0 10 10
mount ida ar 83 64 83 65 0 0 10 10
mountain home ar 82 62 82 61 0 0 0 0
newport ar 83 62 83 62 0 0 0 10
pine bluff ar 85 64 84 67 0 0 10 10
russellville ar 84 64 84 65 0 0 10 10
searcy ar 83 62 83 64 0 0 0 10
stuttgart ar 84 64 84 66 0 0 0 10

Lzk watches warnings advisories None.

Short term... Brown long term... 67


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Russelville Municipal Airport, AR7 mi42 minN 010.00 miMostly Cloudy66°F64°F96%1015.7 hPa

Wind History from RUE (wind in knots)
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Last 24hrCalmSE4CalmCalmNE4NE9NE7NE7NE10NE8E7E6E6E4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoCalmCalmCalmNW3W6N11N8W4W3S4SW4S43CalmCalmCalmCalm4CalmCalmSW7SW4CalmCalm
2 days agoCalmCalmCalmSE3SW5S5SW6S3Calm--S7SW533CalmCalmCalmCalmCalmSE3--CalmS3S3

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 Little Rock, AR (6,6,7,8)
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Ground Weather Radar Station Little Rock, AR
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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.