Monday, July23, 2018 L-36.com


Marine Weather and Tides
Gadsden, AL

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Sunrise 5:48AMSunset 7:52PM Monday July 23, 2018 1:11 AM CDT (06:11 UTC) Moonrise 4:41PMMoonset 2:29AM Illumination 78% Phase: Waxing Gibbous; Moon at 10 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 Gadsden, AL
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location: 34.02, -85.99     debug


Area Discussion for - Birmingham, AL
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Fxus64 kbmx 230502
afdbmx
area forecast discussion
national weather service birmingham al
1202 am cdt Mon jul 23 2018

Update
For 06z aviation.

Short term
Today and tonight.

Looking at the overall synoptic pattern across the area, a front is
draped across central alabama. Convection is limited to an outflow
boundary that moved through the area earlier Saturday evening.

Meanwhile, a large upper low is centered over the ohio valley and
beginning to slip down toward tennessee. To emphasize the extent of
the upper lows impact, feeder bands into this low can be observed on
ir satellite stretching across the atlantic and down to near cuba.

So for today, the main upper low will begin to drift toward the
south and begin to impact northern alabama this afternoon. The cold
front will slowly slide south at the same time. As it slides south,
it will also pivot to more of a southwest to northeast orientation,
in conjunction with the upper low. Rain chances for today will be
highest in the south ahead of the front, as well as in the northeast
as the upper low moves in. Activity will likely be more rain showers
than thunderstorms in the northeast, while activity in the south
will be mainly thunderstorms. There could be a stronger storm late
morning and into the afternoon in the southeast in advance of the
front, but severe potential remains too low to mention at this time.

Temperatures today will generally be in the 80s north of the front
and 90s south of the front.

As we move into tonight, the rain chances in the south will diminish
by midnight, at the latest, as the front clears. Activity in the
northeast will likely continue through the night, with generally a
scattered nature. Again activity will likely be more showers with a
rumble or two of thunder. Temperatures overnight will be in the 60s
north and central, with some lower 70s in the south.

16

Long term
Monday through Sunday.

The overall synoptic pattern doesn't change much through the first
half of this week. The strong ridging over the southwest us persists
as the deep longwave trough is over the eastern us. The upper low
tries to become cut-off over the gulf states on Monday, but
eventually does get phased back in with the upper trough Tuesday
into Wednesday. Expect synoptic scale lift associated with the upper
low to provide increased rain and thunderstorm chances for central
al, especially the eastern two-thirds of the area. We normally don't
have this type of large-scale forcing in the summer months, so
thunderstorm coverage will be a little more widespread. Therefore, i
have gone with generally 60-70% pops each afternoon through
Wednesday.

Around mid-week, another strong low pressure system moves through
manitoba and into ontario, which acts to lift the troughing over the
gulf states northeastward into new england. A remnant frontal
boundary will likely remain stretched southwestward along the
east coast through the second half of the week, but models
disagree on exactly where this will become stationary. The current
gfs has the stationary boundary setting up through the
appalachians and into central al, which would lead to continued
rain chances through at least Saturday or Sunday. However, the
ecmwf keeps more along the east coast, so the best convergence is
south and east of us, allowing us to have more of a typical
summertime diurnal pattern. For now, have split the difference in
pops for Thursday through Sunday until we know more about where
the boundary will set up.

Temperature-wise, we should have more of a moderated daily range
considering the increased cloud cover, rain chances, and overall
cold core nature of the upper low. Towards the end of the week, i've
started a warming trend, but that will again be dependent on how the
remnant frontal boundary behaves.

25 owen

Aviation
06z TAF discussion.

Broad cyclonic flow will prevail across central alabama thru the
period. Expect rain free conds thru 15z with mostly sct clouds
with bases arnd 6000 feet agl. Sct shwrs will develop between 15z
and 18z as deeper moisture pushes into areas along and east of
i-65. Daytime heating will create enough instability after 18z for
tstms to become embedded in the shwrs. Drier air below 850mb will
likely keep CIGS above 3000 feet agl thru the period. Sfc winds
will be from the north and northwest at 5-10 knots. Shower and
tstm activity will decrease in coverage after 01z.

58 rose

Fire weather
Scattered showers and thunderstorms possible this afternoon and
evening. Localized fog will be possible each morning over the next
couple of days where rainfall occurs during the previous
afternoon and evening. There are no fire weather concerns.

Preliminary point temps pops
Gadsden 68 85 68 87 70 20 60 30 70 40
anniston 68 85 68 87 71 20 60 30 70 40
birmingham 72 87 70 88 72 20 50 30 70 40
tuscaloosa 72 89 71 90 72 10 40 20 50 20
calera 70 87 69 88 71 20 50 30 70 40
auburn 70 86 70 87 71 20 60 30 70 40
montgomery 73 90 71 91 73 10 60 30 70 40
troy 71 89 70 90 71 10 60 30 70 40

Bmx watches warnings advisories
None.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gadsden, Gadsden Municipal Airport, AL6 mi16 minno data10.00 miFair70°F70°F100%1008.9 hPa
Albertville, Albertville Municipal Airport, AL20 mi37 minN 010.00 miPartly Cloudy72°F69°F94%1009.8 hPa

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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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GOES Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Birmingham, AL (2,6,7,8)
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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.