Tuesday, April23, 2019 L-36.com


Marine Weather and Tides
Pell City, AL

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:03AMSunset 7:22PM Tuesday April 23, 2019 5:35 AM CDT (10:35 UTC) Moonrise 11:54PMMoonset 9:20AM Illumination 84% Phase: Waning Gibbous; Moon at 19 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 230848
afdbmx
area forecast discussion
national weather service birmingham al
333 am cdt Tue apr 23 2019

Short term
Today and tonight.

Surface ridging is in control across central alabama this am with
high pressure across the southeast u.S. As a result, we have near
calm winds and generally clear skies except for a few cirrus clouds
noted on satellite that are going through the upper zonal flow
across the top of the gulf of mexico ridge. The surface ridge will
begin to slowly weaken tonight. Our airmass will moderate with
milder temperatures expected for today and tonight. However with
southwest low level flow, moisture will be slow to reenter the
picture. Our forecast will continue to be rain free today and
tonight.

08

Long term
Wednesday through Friday.

A positively tilted trough upper-level low with begin to eject from
the southern rockies into the southern plains Wednesday. This will
be our next weather maker across central alabama in the Thu fri
timeframe. Not a lot of changes in expectations for weather across
the area with a warm Wednesday afternoon (upper 70s to mid 80s)
despite increasing cloud cover from upstream convection and
southwesterly flow aloft. Broad ridging across the southeast will
help set the stage for increasing rain chances as theta-e advection
and southerly surface flow increase on the western periphery of a
surface high to our east-southeast. Though no rainfall is
anticipated Wednesday, increasing pops from the west have been
placed in the forecast on Thursday as better quality moisture and
deep-layer forcing approach the lower mississippi river valley by
Thursday morning.

A look at the thunderstorm parameter space has continued to suggest
best coverage of convection will remain along the gulf coast &
offshore where the best jet dynamics & tropical moisture are
available, but have trended farther north with modest shear profiles
(30-40 kts 0-6 km bulk shear with indications of a stronger mid-
level jet). Synoptically speaking a strong severe storm cannot be
ruled out at this point, especially across the south where the best
overlap of ingredients occur, but likely ongoing re-intensifying
gulf coast convection would limit destabilization such that more
favorable shear profiles are not taken advantage of. Regardless,
trends will continue to be monitored closely as we get closer to
Thursday. Once antecedent rounds of strong severe thunderstorms have
taken place across texas today and tomorrow, we can get a better
picture of where mesoscale areas more favorable for stronger
convection may develop. Due to low forecast confidence in any
particular outcome that involves severe weather at this time, will
continue to forego inclusion in the hwo again tonight.

Saturday through Monday.

Despite uncertainties specific details of how weather evolves
thu fri, the synoptic scale trough will be out of the area and to
our east by Saturday. Have decreased pops such that only a lingering
shower may be possible across the east southeast early Saturday
morning. Thereafter, a polar jet across the northern tier of the
conus and zonal split-flow will help stabilize weather across the
area with high pressure drier air establishing across the southeast.

Warm temperature trends appear likely as we head into the long-term
with upper 80s possible by early next week.

40 sizemore

Aviation
06z TAF discussion.

AVFR forecast is expected for the next 24 hours. Surface high
pressure is in place over the southeast u.S. With fair skies. We
have only some thin cirrus noted on satellite that is transversing
through zonal flow around an upper gulf of mexico ridge.

Overnight winds are light to near calm across central alabama.

With daytime mixing, southwest winds of 5-10 kts are expected
around the surface ridge.

08

Fire weather
A dry airmass remains across the area through mid-week. Increasing
cloud cover is expected today but will generally remain mid to
high-level. With surface high pressure slowly working its way
eastward, winds will become more southwesterly today and increase
to 5-8 knots by this afternoon. Relative humidity values in the
mid 30-40% range are expected this afternoon as well. Next
forecast rain chances begin Thursday morning from the west and
will continue through Friday.

Preliminary point temps pops
Gadsden 82 55 82 58 78 0 0 0 10 30
anniston 81 57 83 58 79 0 0 0 0 30
birmingham 82 59 84 61 79 0 0 0 10 40
tuscaloosa 82 57 84 60 78 0 0 0 10 50
calera 82 58 82 59 78 0 0 0 10 40
auburn 82 59 82 58 79 0 0 0 0 10
montgomery 84 58 84 59 81 0 0 0 0 30
troy 83 57 83 58 80 0 0 0 0 20

Bmx watches warnings advisories
None.

08 40


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Anniston Metro Airport, AL23 mi42 minENE 310.00 miFair50°F48°F93%1019.8 hPa

Wind History from ANB (wind in knots)
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Last 24hrNE3E3E3CalmCalmCalmSW4SE3W3SW3W6SW5W6SW3CalmCalmCalmCalmCalmCalmCalmCalmCalmE3
1 day agoCalmCalmCalmSW6SW4SE3W84
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4NW9W8Calm4CalmCalmCalmCalmCalmE3CalmCalmCalmCalmNE4
2 days agoSW9W8W7
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W9W10SW8SW6CalmCalmSW4W3SW3CalmSW3SW3CalmCalmCalm

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.
Link to Loop

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