Saturday, January23, 2021
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Marine Weather and Tides
Brook Highland, AL

Version 3.4
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8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
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.

Sunrise 6:46AMSunset 5:11PM Saturday January 23, 2021 11:19 AM CST (17:19 UTC) Moonrise 1:54PMMoonset 3:20AM 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 Brook Highland, AL
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location: 33.45, -86.71     debug


Area Discussion for - Birmingham, AL
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FXUS64 KBMX 231718 AFDBMX

Area Forecast Discussion National Weather Service Birmingham AL 1118 AM CST Sat Jan 23 2021

UPDATE. Midday Update and 18Z Aviation.

SHORT TERM. /Updated at 1052 AM CST Sat Jan 23 2021/

Fair conditions across the area today as broad ridging aloft was located over the Plains and Southern Mississippi River Valley regions. Expansive high pressure centered near Chicago will continue to support a northeast to easterly wind 6-12 mph. Highs today will range from the mid 50s northeast to the low 60s southeast.

A closed low over Central California will dig southeast this afternoon and open into a shortwave trough as it ejects northeast over the Desert Southwest through the day on Sunday. Expect ridging to amplify aloft locally as a result.

Towards the surface, high pressure over the Ohio River Valley region tonight will weaken as it approaches the Mid Atlantic region on Sunday. The stationary front to our south over the Northern Gulf of Mexico will begin lifting as a warm front through the day Sunday as a surface low develops over the Central Plains ahead of the shortwave trough.

Expect a gradual increase in clouds tonight from the south and west as the surface front begins to return northward and as the flow in the lower levels intensifies from the south and southwest. Winds will be light out of the east to southeast overnight with a wider spread in the low temperatures, from lows around freezing northeast to readings in the mid 40s west and south, largely modulated by the thickening cloud cover and weak warm advection across the south.

On Sunday, clouds will continue to increase across the area. Isentropic lift will support isolated showers early Sunday morning south and west, expanding northeast across the area during the daytime hours. The better chances for rain will be across the west and northwest, closer to the upper-level support. I did include a small mention of thunder Sunday afternoon west and northwest, but confidence is low as what instability manages to develop will likely be elevated in nature and rather meager in magnitude. Winds will be breezy out of the southeast 10-20 mph at times. Highs will range from the mid 50s northeast to the mid 60s southwest.

05

LONG TERM. /Updated at 0314 AM CST Sat Jan 23 2021/

Sunday night through Friday.

Southwesterly 850-700mb flow will increase Sunday night in advance of an approaching storm system. Warm advection and associated isentropic lift near a northward-moving warm front should trigger a band of showers and perhaps some embedded thunderstorms mainly north of I-20 Sunday evening. The warm front and most concentrated rain should advance north of I-40 by daybreak on Monday. A shortwave is projected to track from the Texas Panhandle to Illinois with a warm sector established south of I-40. The main area of 500 mb vorticity with this system is expected to be compact and remain several hundred miles our northwest, while a subtropical ridge remains in place near Cuba. Our assessment of the severe weather potential has not changed from 24 hours ago. Parameters appear somewhat supportive of severe weather, but a lack of lift across the warm sector will significantly hinder the potential for severe storms. This is due to a lack of height falls, anticyclonic curvature at 500 mb, and the shortwave greatly displaced to the northwest. At this time, we will continue to refrain from including severe storms from our forecast.

Showers with perhaps some embedded thunder will move across the region Monday afternoon and evening as the weakening front loses momentum and eventually stalls to our south. Another shortwave should induce southerly flow on Wednesday leading to isentropic lift north of the warm front near the Gulf coast. Rain could become widespread with embedded thunder across the region Wednesday and continue through early Thursday, with the greatest rainfall potential south of I-20. Thursday afternoon will feature strong cold advection with a return to freezing temperatures by Friday morning.

87/Grantham

AVIATION. 18Z TAF Discussion.

VFR conditions will persist through this cycle.

Expect good flying conditions today with only a gradual increase in high level clouds from the south and west this afternoon through the evening. Low-level winds will be out of the east- northeast up to 10 kts.

For overnight through midday Sunday, expect high and mid level clouds to thicken and lower, but bases look to remain above restrictive criteria. A few SHRA will be possible at TCL generally after 15Z Sunday but probabilities were too low to include. Low- level winds will be light overnight from the east/southeast followed by breezy southeast winds during the day Sunday with speeds from 10-15 kts.

05

FIRE WEATHER.

Patchy fog will continue in a few locations this morning. Otherwise, dry conditions and light northeast winds will prevail today with RH values falling into the 30-40 percent range. Moisture and rain chances will increase Sunday and into Monday ahead of an approaching storm system as winds become more southerly.

PRELIMINARY POINT TEMPS/POPS. Gadsden 56 34 57 46 68 / 0 0 40 80 80 Anniston 59 36 57 50 69 / 0 0 30 60 70 Birmingham 58 39 58 51 70 / 0 0 50 60 80 Tuscaloosa 59 42 60 54 72 / 0 0 50 50 80 Calera 58 39 57 53 70 / 0 0 40 50 80 Auburn 60 39 56 52 69 / 0 0 10 30 50 Montgomery 61 43 61 56 75 / 0 0 30 20 60 Troy 63 45 62 56 74 / 0 0 20 20 50

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 mi26 minN 010.00 miA Few Clouds51°F24°F35%1024.3 hPa
Alabaster, Shelby County Airport, AL19 mi26 minENE 710.00 miFair50°F27°F41%1023.7 hPa

Link to 5 minute data for KBHM

Wind History from BHM (wind in knots)
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Last 24hrNE6NE3NW7NW6N8N5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN3CalmCalmCalmCalmE6NE9Calm
1 day agoSW8W7W7NW7SW4NW3N3CalmN9NE6NE4CalmCalmCalmCalmN3NE4CalmCalmCalmNE3N3NE4NE5
2 days agoNW7W36W6NW6W6CalmCalmCalmCalmCalmCalmCalmS5CalmCalmSW4SW7S7SW9SW11SW11W5W5

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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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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 numerous 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.