Marine Weather and Tides
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.
|Sunrise 6:32AM||Sunset 6:49PM||Sunday September 19, 2021 8:53 AM CDT (13:53 UTC)||Moonrise 6:31PM||Moonset 5:00AM||Illumination 96%|
7 Day Forecast for Marine Location Near Sterrett, ALHourly EDIT Help
Area Discussion for - Birmingham, AL  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS64 KBMX 191127 AFDBMX
Area Forecast Discussion National Weather Service Birmingham AL 627 AM CDT Sun Sep 19 2021
UPDATE. For 12Z Aviation.
SHORT TERM. /Updated at 0314 AM CDT Sun Sep 19 2021/
Today through Monday.
Anomalously high PWAT's will persist over Alabama through Monday. Deep southerly flow overrunning a shallow layer of easterly flow near the surface will produce widespread lift for numerous showers and thunderstorms again today. Any stronger cells will be efficient rainfall producers with amounts of 1-2 inches in a short period of time. The deeper moisture will reside across the northern and eastern portions of Central Alabama, with some decrease in mid level moisture across the southwest counties. Based on radar estimated pockets of 2-4 inches of rain across the southeast counties on Saturday, I have added the southeast counties to the flash flood watch and removed the some of the southwest counties. The heavier convection should wane during the evening hours, and the flooding threat should diminish.
The broad closed upper low near the Ar-LA-TX region will evolve into an open trof today and begin to lift northeast as a short wave trof digs southward into the northern Plains States. This will push the deeper moisture into east Alabama during the day Monday, but indications are that there will be sufficient lift along the upper trof axis for numerous showers and thunderstorms across all of central Alabama. The more concentrated area for heavy rain will shift into east Alabama and a new Flash Flood Watch may be needed for this area in later forecasts.
LONG TERM. /Updated at 0236 AM CDT Sun Sep 19 2021/ Monday night through Saturday.
The southern stream trough will be deamplifying by Monday night, though a remnant mid-level trough axis will still remain near the MS/AL border. However, the 2 inch PWATs will finally be east of the area, so lingering showers and storms Monday night should be more scattered in nature. By Tuesday the trough axis will become even more ill-defined. Meanwhile a sharp/amplified trough and cold front will be moving into the Ozarks region, but remain well northwest of the area during the day on Tuesday. PWATs remaining near 1.85 inches will still result in numerous showers and storms developing with daytime heating, but probably not as widespread as previous days. Overall heavy rainfall threat will be lower than previous days, but could still have some localized issues wherever soils remain saturated. The long-awaited cold front moves into the area late Tuesday night into Wednesday morning. Models still show some differences in rain coverage with the front itself depending on how far south the trough digs, but with the lack of diurnal instability at the time of the frontal passage expect showers/storms to be in an overall weakened state. Notable deep layer shear will lag well behind the front, as is typical with fronts this time of year. Cooler and much drier air moves in behind the front by late Wednesday afternoon, with pleasant conditions for the rest of the forecast period. Temperatures will begin to moderate over the weekend.
AVIATION. 12Z TAF Discussion.
Widespread low cigs with rain/tstms will prevail thru the period. Models are indicating IFR cigs may persist across areas along and east of I-65 thru at least 18z, possibly longer. Mostly light showers thru 15z will evolve into heavier showers with embedded tstms between 15z and 23z, with the activity weakening after 23z. Vsbys in the heavier showers will be less than 1 mile. Sfc winds will be primarily east at 5-7 kts.
An unusually persistent wet pattern will remain in place into the first part of the week with high relative humidity values. Light east to southeast winds will prevail. Increased low level moisture will lead to low ceilings each morning for the next several days, which will lift through the early morning hours. A cold front is expected to push through Central Alabama on Wednesday with drier and cooler readings expected for the latter part of the week.
PRELIMINARY POINT TEMPS/POPS. Gadsden 79 70 80 69 82 / 90 60 80 50 70 Anniston 80 72 82 71 83 / 90 60 80 50 70 Birmingham 78 71 82 70 83 / 90 70 80 50 70 Tuscaloosa 81 73 83 71 83 / 80 60 80 40 60 Calera 79 73 82 71 83 / 90 70 80 50 70 Auburn 79 71 80 70 82 / 90 60 80 50 60 Montgomery 82 73 85 71 85 / 90 60 70 40 60 Troy 83 72 83 71 85 / 90 50 70 40 60
BMX WATCHES/WARNINGS/ADVISORIES/. Flash Flood Watch through this evening for the following counties: Autauga . Barbour . Bibb . Blount . Bullock . Calhoun . Chambers . Cherokee . Chilton . Clay . Cleburne . Coosa . Elmore . Etowah . Fayette . Jefferson . Lamar . Lee . Lowndes . Macon . Marion . Montgomery . Pike . Randolph . Russell . Shelby . St Clair. Talladega . Tallapoosa . Tuscaloosa . Walker . Winston.
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|Birmingham, Birmingham International Airport, AL||18 mi||61 min||N 0||10.00 mi||Overcast||74°F||71°F||91%||1017.6 hPa|
|Alabaster, Shelby County Airport, AL||22 mi||61 min||N 0||8.00 mi||Overcast||73°F||71°F||94%||1016.9 hPa|
Link to 5 minute data for KBHM
Wind History from BHM (wind in knots)
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