Sunday, January21, 2018

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 6:53AMSunset 5:10PM Sunday January 21, 2018 12:18 PM CST (18:18 UTC) Moonrise 10:41AMMoonset 10:33PM Illumination 25% Phase: Waxing Crescent; Moon at 5 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 211755
area forecast discussion
national weather service huntsville al
1155 am cst Sun jan 21 2018

For 18z tafs.

Near term (rest of today)
issued at 1108 am cst Sun jan 21 2018
a short wavelength mid-level ridge continues to build northeastward
into the region this morning, in the wake of a weak trough shifting
eastward across southern ga and the northern fl peninsula. In spite
of this, low-level moisture advection beneath a weak 850-mb jet was
sufficient to support scattered-overcast altostratus clouds and a few
very light showers sprinkles across the northwest half of the cwfa
this morning.

Over the course of the afternoon, the ridge axis aloft will
translate eastward and deep-layer flow will begin to strengthen from
the southwest downstream from a deepening 500-mb shortwave trough
tracking east-northeastward across the southern rockies and into the
central high plains. Any threat for light precipitation is expected
to diminish before noon, with lingering cloud cover expected to
dissipate early this afternoon for all but perhaps far northwest al.

Based on this, as well as expectations of light-moderate south-
southeasterly flow, temperatures should reach the mid 60s for most of
the region this afternoon.

Short term (tonight through Tuesday)
issued at 330 am cst Sun jan 21 2018
a storm system impacting the great basin and intermountain west with
widespread showers and mountain snowfall, was heading across central
divide. Surface cyclogenesis was occurring over the eastern nm co
plains as this system moves across the rockies. This new surface low
will deepen and head towards the great lakes (reaching them during
Tuesday). A cold front extending south of the low will move across
the forecast area during Monday, bringing widespread showers and a
few thunderstorms. Inter-model comparison this go around was in
reasonably good agreement, bringing the front across the area mainly
in the late morning through late afternoon hours.

There should be strong wind shear preceding the front, along with
minimal instability. Thus again cannot rule strong storms - with the
main threat from strong wind gusts. Some of the storms could be
rotating in a relatively high sheared environment in the late
morning through mid afternoon. With slightly deeper moisture high
stability to our south, a few marginally severe storms (again from
strong to damaging wind gusts) are a possibility mainly south of the
tennessee river. The directional shear earlier, becomes more linear
in the afternoon with the front, which should help minimize a larger
scale severe threat. Shower activity should wind down from west to
east Monday evening as the front moves east of the region. Have
included isolated storms within more predominate showers for our
eastern areas early in the early evening. Shower activity should end
before midnight.

Pacific based surface high building in from west will bring more
seasonably cool conditions to the tennessee valley for Monday night
and Tuesday. Near freezing night time lows are possible Monday night
with lows in the low mid 30s. Highs on Tuesday should range in the
upper 40s to around 50.

Long term (Tuesday night through Saturday)
issued at 330 am cst Sun jan 21 2018
quiet and seasonal wx conditions should be ongoing across the cntrl
tn valley at the start of the long term forecast period. A strong
dome of high pressure out of the mid SRN plains states will continue
to build ewd into much of the SE region Tue night into wed, with the
flow pattern aloft turning more towards the w. This should maintain
overall temps near normal trends for this time of the yr, with lows
tue night right around the 30f mark before rebounding back into the
lower 50s Wed afternoon. Little change in the synoptic pattern is
really anticipated across the region going past mid week, as the sfc
high builds more into the area on Thu and weak upper ridging out of
the SRN plains translates ewd into the WRN cntrl gulf states. This
should result in slightly higher afternoon temps thu, as highs climb
more into the mid 50s for most locations.

Moisture will begin to stream nwd back into the area on fri, as the
sfc high shifts E and becomes layered across the NRN mid atlantic
basins. With the upper ridge axis also quickly moving ewd over the
region, the brief warming trend should continue thru the end of the
work week, as afternoon highs on Fri climb into the upper 50s near
60f. The latter half of the global models are still pointing to
another area of low pressure developing over the NRN plains late
fri, with the attendant cold front stretching as far S as the wrn
gulf region. As the sfc low moves E into the great lakes around the
first of the weekend period, the front is xpcted to translate ewd
into the midwest lower ms valley areas. With moisture cloud cover
continuing to increase into the mid tn valley, rainfall showers look
to develop along ahead of the approaching front, and should begin to
work their way into the area late Fri into sat. Given the increase
in cloud cover rainfall, lows Fri night may only fall into the mid
40s for most areas. Highs on Sat though may be able to reach the 60f
mark given some moderate WAA into much of the region.

Aviation (for the 18z tafs through 18z Monday afternoon)
issued at 1155 am cst Sun jan 21 2018
vfr conditions currently exist at both airports, with SE flow in the
5-10 knot range and few-bkn ac as clouds -- most widespread invof
the msl terminal. These clouds are forecast to slowly dissipate over
the course of the afternoon, but should be replaced by a pronounced
increase in high-level cirrostratus late this evening, downstream
from convection developing well to our west. As a deepening area of
low pressure tracks newd into the mid-mo valley overnight, low-level
flow will veer more to the sse and strengthen, and inclusion of llws
may need to be considered in future tafs beginning around 10z. Low
stratus clouds will surge nwd after sunrise tomorrow, with cigs
falling into the 1500-2500 ft range by 13-14z. A few shra will be
psbl INVOF hsv beyond this point. However, prevailing shra and vcts
have been included at msl beginning around 16z, due to earlier
arrival of the cold front at this terminal.

Hun watches warnings advisories
Al... None.

Tn... None.

Near term... 70 dd
short term... Rsb
long term... 09
aviation... 70 dd
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 mi25 minS 710.00 miOvercast64°F42°F45%1021.1 hPa

Wind History from MSL (wind in knots)
1 day agoW4W6W5SW5SW5W4SW5SW5SW6SW5S7S5S6SW6S7CalmCalmCalmSW4S5S5SW5SW6SW10
2 days agoCalmW6W4CalmE3CalmCalmCalmCalmCalmCalmCalmSE3CalmCalmCalmCalmCalmCalmCalmS4Calm34

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
IR Satellite Image from GEOS

GOES Local Image of Midwest    EDIT

Wind Forecast for Huntsville, AL (13,3,4,5)
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Ground Weather Radar Station Northern Alabama
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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 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 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.