Friday, April20, 2018

Marine Weather and Tides
Billingsley, AL

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 6:08AMSunset 7:20PM Friday April 20, 2018 1:36 PM CDT (18:36 UTC) Moonrise 10:00AMMoonset 12:00AM Illumination 29% Phase: Waxing Crescent; Moon at 5 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 Billingsley, AL
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location: 32.63, -86.71     debug

Area Discussion for - Birmingham, AL
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Fxus64 kbmx 201726
area forecast discussion
national weather service birmingham al
1226 pm cdt Fri apr 20 2018

For 18z aviation.

Short term
Today and tonight.

Surface high pressure will dominate the sensible weather over much
of the CONUS east of the mississippi river today and tonight. The
center of this large surface high will track eastward across the
great lakes today, leaving central alabama in a dry, low level
northeast to east flow pattern. Skies remain mostly clear for the
next 24 hours, at least. Highs today will be in the upper 60s to
lower 70s. Tonight, lows will be in the 40s.


Long term
Saturday through Thursday.

One last dry day is expected Saturday ahead of the approaching
upper low as the flow aloft becomes southwesterly. Southeasterly
flow will result in an increase in low-level moisture and
associated clouds, and high clouds are expected as well, but mid-
levels will remain too dry for precipitation. Easterly winds
associated with high pressure extending from the great lakes to
the mid-atlantic will prevent significant warming, but still
expect pleasant highs in the low to mid 70s. This will be the day
to get any outdoor activities done this weekend. The upper low and
associated weak surface low will move towards the ok ar border
region Saturday night. A warm front will lift northward over the
arklamiss region, while further east the warm front will remain
near the gulf coast. The heavier precipitation should remain west
of the forecast area prior to sunrise. But height falls ahead of
the system, strongly diffluent flow associated with the left exit
region of a strong upper-level jet streak on the southwest flank
of the upper low, and low and mid-level isentropic lift should
result in scattered showers developing over central alabama after
midnight as the LLJ strengthens. Increased cloudcover will result
in milder low temperatures.

The upper low and weak surface low will move slowly eastward,
reaching the arklamiss region Sunday afternoon and west alabama
late Sunday night. Plentiful gulf moisture and forcing for ascent
will result in widespread precipitation moving in from the west
during the day, potentially in the form of a weak mcs. Models
continue to trend slightly further north with the placement of the
warm front, as the east coast surface high position does not look
favorable for a strong cad wedge to develop during this timeframe.

It's possible that the warm front could make it up towards the us
80 corridor late Sunday afternoon. But the widespread
precipitation will inhibit the northward progress of the warm
front and associated destabilization, as well as the potential for
coastal convection. Couldn't rule out a couple stronger storms in
our extreme southwest counties, but this will likely be west of
the main LLJ axis in an area of weaker low-level shear, so severe
potential remains too low to mention in the hwo at this time.

Widespread precipitation will continue over much of the area
Sunday night, decreasing in coverage over the southwest counties
as a mid-level dry slot moves in. Storm-total area average
rainfall amounts of around 1.5-2.5 inches are expected across the
western two-thirds of the area, while rainfall amounts over 3
inches are expected in east alabama as the system slows down
Sunday night. These are areas that received the least amount of
rainfall last weekend, and streamflows are not elevated there.

Overall expect minor flooding of poor drainage areas and
additional rises on area streams and rivers, but confidence in
widespread flash flooding is too low to mention in the hwo at this

The upper level low and associated cold core aloft will be located
overhead on Monday, while the weak surface low will be located
over SE al SW ga. The mid-level dry slot will be over most of the
area, except perhaps the northeast counties. This will result in
lighter rainfall rates, but still expect good coverage of showers
as a moist easterly flow wraps around the low pressure and a wedge
develops. Couldn't rule out a couple rumbles of thunder in the
southeast counties closer to the surface low due to the cool air
aloft. Models are trending a bit more progressive with the upper
low during the Monday night Tuesday timeframe as a southern stream
shortwave gives it a push. But clouds will still mainly stick
around with continued chances for showers drizzle. The low finally
lift away as an open wave Tuesday night ahead of a strong
shortwave. There are some timing differences in the models by this
point, with a cold frontal passage somewhere in the
Wednesday Thursday timeframe, but moisture return looks limited
ahead of this front.

32 davis

18z TAF discussion.

Vfr through the period. As the high pressure slides northeast winds
will begin to switch to an eastern flow then southeast flow by
15z Saturday. Winds will calm tonight only to increase to 10 to
15kts by 15z.


Fire weather
Afternoon rh values will fall to or below 30 percent this afternoon
and tomorrow afternoon, for portions of the area. A few locations in
extreme east central alabama will drop to 25 percent for a couple
hours today. Northeast to east 20ft winds remain below 10mph.

Critical fire weather conditions are not expected to be met. Rain

Preliminary point temps pops
Gadsden 42 72 52 63 54 0 0 30 90 90
anniston 43 72 53 65 55 0 0 30 90 100
birmingham 47 74 56 65 56 0 0 30 100 90
tuscaloosa 47 75 57 68 57 0 0 40 100 70
calera 47 74 56 66 57 0 0 30 100 90
auburn 47 72 55 65 58 0 0 30 90 100
montgomery 47 75 58 70 60 0 0 30 100 90
troy 48 74 57 70 60 0 0 30 90 90

Bmx watches warnings advisories

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Maxwell Air Force Base / Montgomery, AL24 mi1.7 hrsESE 910.00 miFair62°F34°F36%1025.6 hPa

Wind History from MXF (wind in knots)
Last 24hrNW13
1 day agoS10SW10
2 days agoW7CalmSW5SW7W7SW3S3S4S7SW6SW6SW5SW5SW4CalmCalmCalmCalmCalmSW5SW13

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.
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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 East Alabama
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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 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 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.