Saturday, September21, 2019 L-36.com


Marine Weather and Tides
Pell City, AL

Version 3.4
NOTICE
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:30AMSunset 6:44PM Saturday September 21, 2019 12:12 AM CDT (05:12 UTC) Moonrise 11:40PMMoonset 1:19PM Illumination 55% Phase: Third Quarter Moon; Moon at 22 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 Pell City, AL
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location: 33.61, -86.29     debug


Area Discussion for - Birmingham, AL
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Fxus64 kbmx 210006
afdbmx
area forecast discussion
national weather service birmingham al
706 pm cdt Fri sep 20 2019

Update
For 00z aviation.

Short term
Updated at 0149 pm cdt Fri sep 20 2019
a strong surface ridge along the atlantic states was producing a
dry easterly flow across central alabama. Surface dewpoints have
fallen into the middle and upper 40s across portions of east
alabama, with afternoon temperatures near normal for middle
september. Temperatures will cool quickly this evening with the
dry air in place, with lows tonight in the middle to upper 50s
across far east alabama, with lower to middle 60s elsewhere.

58 rose

Long term
Updated at 0333 am cdt Fri sep 20 2019
Saturday through Thursday.

593 decameter subtropical anticyclone will remain parked overhead
over the weekend, while a strong shortwave trough moves eastward
from the northern central high plains to the midwest. Subsidence
and pwats under 1 inch will result in continued rain-free
conditions. Low-level flow will maintain an easterly component on
Saturday, due to an expansive surface high pressure area centered
over the east coast and western atlantic, keeping low-level
thicknesses down just enough to keep highs in the upper 80s to
around 90f on Saturday. Veering low-level flow will result in
slightly warmer temperatures for Sunday. As the mid upper-level
trough moves eastward from the great lakes to the northeast on
Monday, the ridge will temporarily flatten over northern alabama.

This will allow a cold front to approach from the northwest,
though it will be decelerating as it becomes parallel to the low-
level flow. Pwats will increase to 1.5-1.75 inches north of i-59
Monday afternoon ahead of the front, but forcing will be very
weak with mid-level flow becoming anticyclonic by afternoon and
pronounced drying in mid-levels. Thus any shower development
should remain isolated to widely scattered Monday afternoon, and
meager MLCAPE values and warm mid-level temperatures suggest
thunder potential will be very limited. Pre-frontal westerly flow
will allow the warming trend to continue.

Upper-level flow will become quasi-zonal by Tuesday, with the
front stalling out over our southern counties. A couple showers
may be possible in the remnant moisture axis along south of the
front. Areas north of the front will see lower dew points but
continued warm temperatures. An upper low will close off at the
base of another western CONUS trough early next week and move
slowly eastward. Southwest flow will develop between this feature
and a re-strengthening ridge over florida, allowing the front to
lift back to the northeast as a warm front. This may allow for
isolated shower thunderstorm development Wednesday afternoon, but
limited moisture and ridging will limit coverage. Models disagree
on the the speed of the upper low as it lifts northeastward and
shears out, but the consensus keep any associated precipitation
northwest of the area. Models are in good agreement on an
amplified western trough eastern ridge pattern developing just
beyond the extended forecast period, signaling continued hot dry
conditions with no signs of autumn in sight.

32 davis

Aviation
00z TAF discussion.

The weather pattern has changed very little in the past 24 hours.

In addition, the pattern will not change much the next 24 hours.

Vfr conditions will prevail as surface high pressure remains
anchored just to our east. Generally a wind forecast as only some
cirrus and maybe some cumulus in the skies. Winds will keep the
east to southeast component through the period, 5kts or less at
night and increasing to 5-10kts during the day. Low level moisture
will be too low for any fog formation.

75

Fire weather
Dry and warm conditions continue through the weekend. The next
chance of rain will come Monday, but with only isolated to scattered
coverage across northwestern areas. Afternoon relative humidity
values are expected to remain above 30 percent each afternoon
through the weekend. Kbdi values will remain elevated as drought
conditions persist.

Preliminary point temps pops
Gadsden 59 89 61 90 62 0 0 0 0 0
anniston 61 89 62 90 63 0 0 0 0 0
birmingham 65 90 65 91 66 0 0 0 0 0
tuscaloosa 64 90 66 91 68 0 0 0 0 0
calera 64 90 64 91 64 0 0 0 0 0
auburn 65 86 63 87 65 0 0 0 0 0
montgomery 64 90 64 91 65 0 0 0 0 0
troy 61 89 63 90 64 0 0 0 0 0

Bmx watches warnings advisories
None.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Anniston Metro Airport, AL23 mi20 minENE 510.00 miFair63°F57°F81%1023.9 hPa

Link to 5 minute data for KANB

Wind History from ANB (wind in knots)
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Last 24hrE5NE4NE3E5NE6NE5NE4E66E7E9E8E85E5E7E7E5E3CalmE3E3E3NE5
1 day agoE7NE8E5E6E6E6E5E9E8E8SE8E7E95SE8SE6E4E5E5E4NE4NE5E4E6
2 days agoCalmCalmCalmCalmCalmCalmCalmE3E5NE8E5E54N7N96N8N5E8
G16
E10E7E5E7E7

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_A
GEOS Local Image of Southeast    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Birmingham, AL (1,6,7,8)
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Ground Weather Radar Station Birmingham, AL
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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.