Thursday, August22, 2019 L-36.com


Marine Weather and Tides
Brook Highland, AL

Version 3.4
NOTICE
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 6:13AMSunset 7:26PM Thursday August 22, 2019 1:12 PM CDT (18:12 UTC) Moonrise 11:36PMMoonset 12:30PM Illumination 54% 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 Brook Highland, AL
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location: 33.45, -86.71     debug


Area Discussion for - Birmingham, AL
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Fxus64 kbmx 221725
afdbmx
area forecast discussion
national weather service birmingham al
1225 pm cdt Thu aug 22 2019

Update
For 18z aviation.

Short term
Updated at 0342 am cdt Thu aug 22 2019
today and tonight.

We will continue to see an increase in moisture today as the area of
high pressure begins to slide east southeast during the afternoon.

This will allow the southerly flow to increase around the western
periphery of the high. This in turn will increase the activity
possible across the area as well as the increase in cloud cover
through the afternoon. Look for the best coverage to be in the west,
where the moisture increase is the highest. Elsewhere scattered
showers storms will be possible, with the highest chances in the
southeast as an outflow will move northeastward during the morning.

Look for highs to be in the low to mid 90s. As we move into the
evening the best chances will remain in the western counties. We may
see some outflow boundaries from convection along the front, still
well to our north, move close to the area through the evening and
even possibly overnight across the far north. Look for lows to be in
the upper 60s to low 70s.

16

Long term
Updated at 0342 am cdt Thu aug 22 2019
Friday through Wednesday.

Daily rain chances and steady drought relief will continue through
this extended update as near normal to slightly below average
temperatures prevail for the second half of the period. Consistent
onshore flow from the sfc to 500mb will continually provide gulf
moisture across the state which will keep a humid airmass in place
through the afternoon, though highs will be a few degrees lower than
previous days with upper 80s to lower 90s expected as a result of
afternoon cloud cover and rainfall. Additionally, a deep-layer
longwave trough will extend from the canadian maritimes southwest
into the lower tennessee valley. At the surface, an east to west
oriented cold front will progress into the northern parts of the
state before slowing and eventually stalling over far northern
portions of the forecast area. This boundary is not expected to pass
through central alabama, though it will provide synoptic support for
numerous to likely pops on Friday each day through Sunday. The main
concern will continue to be isolated pockets of damaging winds
within any thunderstorm activity, but with higher moisture content
and less dry air present throughout the column, the likelihood for
downbursts should decrease.

Eventually the boundary will advect to the northeast on Monday as
shortwave upper-level troughing develops and deepens over the
southern mississippi valley embedded within a larger-scale trough
over the central conus. Not much support has been noted at the
surface, but upper-level divergence and cyclonic curvature aloft
will continue to drive numerous to likely showers and thunderstorms
across the forecast area Monday into Tuesday with many locations
potentially remaining below 90f on Monday. The pattern will remain
active through the end of this period with the shortwave becoming
absorbed in the flow by the parent trough now well developed over
central canada extending south to the arklatex. Guidance is in fair
agreement on an additional front reaching the forecast area by the
end of this extended forecast with the potential for dry air to move
back in after mid-week.

86

Aviation
18z TAF discussion.

Generally sct clouds will prevail through the remainder of the
afternoon and evening with isolated shra with a few tsra with best
chances to the west and the south through this evening. Expect
convection to linger well past sunset through much of the evening
followed by scattered clouds persisting overnight. Cloud cover and
isolated nature of precipitation will reduce potential for lower
cig's and reduced vis toward daybreak on Friday. General light
south winds are expected in the lower levels outside of
convection.

05

Fire weather
Scattered to numerous rain chances are expected today as moisture
content continues to rise. By Friday, rain chances remain in the
forecast due to moist southerly flow with a frontal boundary
stalling to the north. Temperatures will gradually return to
normal levels through the week as relative humidity values
continue to rise. No critical fire weather conditions are
anticipated.

Preliminary point temps pops
Gadsden 71 90 70 89 69 40 70 60 70 50
anniston 71 91 71 88 70 30 60 50 70 50
birmingham 73 92 73 90 72 30 70 50 80 50
tuscaloosa 73 92 73 90 72 30 70 50 80 50
calera 71 91 71 88 69 20 70 40 70 50
auburn 72 90 72 90 71 30 50 30 60 50
montgomery 73 93 73 90 72 30 60 30 60 50
troy 71 91 71 90 71 30 50 20 50 40

Bmx watches warnings advisories
None.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Birmingham, Birmingham International Airport, AL8 mi80 minS 410.00 miMostly Cloudy85°F70°F61%1018.1 hPa
Alabaster, Shelby County Airport, AL19 mi80 minVar 510.00 miMostly Cloudy86°F68°F55%1017.3 hPa

Link to 5 minute data for KBHM

Wind History from BHM (wind in knots)
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Last 24hrW6--54SW13
G17
NW12E3NE3----Calm----------CalmCalmCalmSW4----S4W6
1 day agoE5N6----SE4S7S11
G19
----NW5------------S6S3----SW85W95
2 days agoCalm--6N8E8S5SW9Calm--------------CalmCalmCalmCalmCalmCalm4W3Calm

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 (14,3,4,5)
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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.