Friday, August18, 2017 L-36.com


Marine Weather and Tides
Florence, AL

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 6:12AMSunset 7:35PM Friday August 18, 2017 11:19 AM CDT (16:19 UTC) Moonrise 2:47AMMoonset 5:13PM Illumination 14% Phase: Waning Crescent; Moon at 26 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 Florence, AL
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location: 34.83, -87.67     debug


Area Discussion for - Huntsville, AL
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Fxus64 khun 181143
afdhun
area forecast discussion
national weather service huntsville al
643 am cdt Fri aug 18 2017

Update
For 12z tafs.

Near term (today)
issued at 218 am cdt Fri aug 18 2017
a weak cold front is approaching the tn valley this morning as a
mesoscale shortwave trough moves east across the oh valley great
lakes region. Showers and storms are expected to redevelop later this
morning as the cold front approaches. However, given that dry air
aloft is already impinging the area, only isolated to scattered
storms are anticipated especially ahead of the front over NE al late
this morning into the early afternoon. Most unstable CAPE is low
(~500-1000 j kg), which should also keep impacts limited to lightning
for any deep convective updrafts. Analysis of microburst parameters
and substantial subsidence aloft indicate the potential for gusty
winds up to 30-45 mph is possible but more limited.

Then, a dry airmass follows behind the front tonight with
temperatures dropping into the mid to upper 60s (a change from lows
in the low 70s) as clouds completely clear.

Short term (Saturday through Sunday night)
issued at 218 am cdt Fri aug 18 2017
dry, sunny, and warm conditions should prevail on Saturday as
a dampened ridge shifts westward across the southeast with daytime
highs in the low 90s. The biggest change on Saturday will be less
humidity. However, this will be short-lived as ridge position aloft
and at the surface result in moisture advection beginning on Sunday
with greater cloud coverage (partly cloudy as opposed to mostly
sunny). A gradual increase in humidity will also follow with
dewpoints rising back into the low 70s. Cloud cover should increase
from the south over the north gulf of mexico coast on Sunday night
as moisture advection, saturation, and lift at around 850 mb cause
low cloud condensation.

Long term (Monday through Thursday)
issued at 218 am cdt Fri aug 18 2017
tutt low will continue to track northwest through the western gulf
of mexico on day 4. A 5h ridge axis will remain anchored from sc
west through ar and north tx. There remains a hint of weak
convergence which could spark off a shower or thunderstorms on
Monday afternoon, mainly over middle and southwest tn. Will keep the
slight chance pop going for now. Any activity should die off by
sunset. A bit more diurnal convection should develop on Tuesday as
southerly flow draws deeper moisture back northward.

The ridge will retrograde westward across the gulf states through
the middle of next week as a rather strong trough position develops
over the eastern CONUS and the southeastern canadian provinces.

The medium range models continue to indicate a resulting cold
frontal passage on Wednesday. Will keep mid range chance pop going
Wednesday. The models look to bring a much more comfortable airmass
in by Thursday (and beyond), with dew points lowering through the
60s and possibly the 50s Thursday night. Suggested blends look good
in this regard.

Aviation (for the 12z tafs through 12z Saturday morning)
issued at 642 am cdt Fri aug 18 2017
MVFR to ifr CIGS (1500-900 ft) are occurring across north
alabama southern middle tn ahead of a front. These CIGS should begin
to scatter over the next 2 hours. By 14z, anticipating a return to
vfr conditions with a change in wind direction to the wnw and
increase to 10 kts. Cloud cover should continue to decrease behind
the front and wind should also decrease to variable after 19 00z.

Isolated -tsra may occur between 12z-18z and amendments to the tafs
may be necessary, if any -tsra approach khsv msl.

Hun watches warnings advisories
Al... None.

Tn... None.

Near term... Sl.77
short term... Sl.77
long term... 17
aviation... Sl.77
for more information please visit our website
at weather.Gov huntsville.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Muscle Shoals, North West Alabama Regional Airport, AL6 mi27 minW 710.00 miPartly Cloudy83°F72°F70%1016.5 hPa

Wind History from MSL (wind in knots)
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Last 24hrSW9W9SW11SW7S8SW10SW5SW3SW5SW6W7SW6SW6SW7SW3SW3W5W5W7SW4NW6N3NW8W7
1 day agoSW5CalmCalmSW6SW9W8SW11SW4SW4S3SW4S4CalmCalmS4SW6SW5W3SW3CalmS4SW9W11
G15
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2 days agoCalmNW6N5NW6N3S4S5SW3S4SE3S3CalmCalmE4CalmSE4CalmSE3S3S4S4S5SW3Calm

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
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GOES Local Image of Midwest    EDIT
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Wind Forecast for Huntsville, AL (12,3,4,5)
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Ground Weather Radar Station Northern Alabama
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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.