Saturday, December7, 2019
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Marine Weather and Tides
Guntersville, AL

Version 3.4
NOTICE
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.
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 6:36AMSunset 4:36PM Saturday December 7, 2019 4:02 PM CST (22:02 UTC) Moonrise 3:05PMMoonset 3:02AM Illumination 83% Phase: Waxing Gibbous; Moon at 11 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 Guntersville, AL
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location: 34.37, -86.25     debug


Area Discussion for - Huntsville, AL
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FXUS64 KHUN 072051 AFDHUN

Area Forecast Discussion National Weather Service Huntsville AL 251 PM CST Sat Dec 7 2019

NEAR TERM. (Tonight) Issued at 250 PM CST Sat Dec 7 2019

Latest visible satellite imagery and RAP H5 analysis showed relatively zonal flow in place aloft and two domes of high pressure at the sfc: one over the SErn Great Lakes region, and the second centered over Cntrl AR. It's the latter of these 2 ridges that will shift Ewrd toward the TN Valley tonight. This will cause sfc winds to become more Srly, which will increase moisture and keep dewpoints during this time in the lower 40s. In addition, clouds will redevelop and creep into the area tonight, keeping morning lows mild and skies eventually mostly cloudy by sunrise. Lows Sunday morning will fall into the 41-46F range.

SHORT TERM. (Sunday through Monday night) Issued at 250 PM CST Sat Dec 7 2019

A pattern change is on the horizon as the ridge shifts E of the TN Valley, with the first of which being a vort lobe wobbling thru zonal flow aloft associated with a large upper low over the Srn Canadian Provinces. The second is a one-two-punch of systems early next week.

A vort max rounds the base of the large upper trof in place in CAN, skirting energy across the Great lakes Monday. This should drop a weak front N of our area ahead of another low deepening across the Desert SW after coming ashore in SOCAL. This system will deepen somewhat and traverse the SWrn U.S., bringing more widespread rain chances to the area as early as Monday night, but especially during the day Tuesday. A few isolated storms are possible overnight Monday into Tuesday as the CWA finds itself 'in-between systems' with pretty decent return flow ahead of the stronger/second system, but otherwise, no strong/severe storms are expected.

Temperatures during this time will be mild, topping out in the upper 50s Sunday and the mid/upper 60s Monday. Morning lows will be mildest Monday morning, falling into the upper 40s and lower 50s, with a tad more colder air trying to intrude for morning lows on Tuesday. Lows during this time will range from cooler NW/warmer SE, with values in the lower 40s NW and the lower 50s SE.

LONG TERM. (Tuesday through Friday) Issued at 250 PM CST Sat Dec 7 2019

An active pattern still looks likely for the extended period. A stronger trough axis will swing east into the southeastern US keeping rain chances in the forecast through Tuesday night. Thermodynamic profiles were not convincing enough to include any mention of thunder on Tuesday morning at this time, and this has been fairly consistent among guidance over the last several days. Some minor discrepancies regarding timing of the cold front's arrival in northwest Alabama are evident amongst this mornings runs, with the GFS and Canadian being a little faster. These differences are minimal, however, and we should expect the front to arrive in northwest AL by sunrise and track east through northeast AL by early afternoon.

A considerable amount of uncertainty exists regarding how quickly the cold air arrives and whether or not there will be any wintry precipitation early Wednesday. Blended guidance appeared to be a little too aggressive bringing in colder temperatures, resulting in a bit of a snow bias. Thinking this is a bit overdone right now, so will only mention a small chance of a rain/snow mix or perhaps a few flurries early Wednesday, but want to reiterate that confidence in this remains very low and no accumulations are expected at this time.

Much cooler air arrives behind the front, and low temperatures will drop near or a few degrees below freezing with highs in the mid to upper 40s through the end of the work week. Will end the week with another deep trough over the southeastern US. This will bring chances for rain and perhaps another shot at some wintry mischief, but will wait for guidance to reach better agreement before discussing any further.

AVIATION. (For the 18Z TAFS through 18Z Sunday afternoon) Issued at 121 PM CST Sat Dec 7 2019

VFR conds and clear skies will dominate the first half of the TAF period at both terminals, and then clouds return for the latter half. Winds will be the bigger story of the period, remaining light/variable AOB 5kts thru about 08/10Z at both sites, and then quickly increasing to sustained 10-15kts gusting to 20-25kts at times shortly after daybreak. Wind gusts will remain in place thru the end of the TAF period Sunday.

HUN WATCHES/WARNINGS/ADVISORIES. AL . NONE. TN . NONE.

NEAR TERM . 12 SHORT TERM . 12 LONG TERM . 25 AVIATION . 12

For more information please visit our website at weather.gov/huntsville.


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albertville, Albertville Municipal Airport, AL10 mi68 minN 010.00 miPartly Cloudy61°F41°F48%1023 hPa

Link to 5 minute data for K8A0

Wind History from 8A0 (wind in knots)
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Last 24hrCalmNE3NE4NE3CalmNE3E3SE3CalmN4N4N5NE4NE6NE5NE5NE5CalmE4CalmNE4CalmCalmCalm
1 day agoS3CalmS4S3SE3CalmS5S5S4S4S4CalmCalmSE4S6S6SE4S3S4S5S6SE3SE4Calm
2 days agoNW6NW5NW5CalmNW3W3W3W5N4N6CalmS3CalmCalmS3CalmCalmCalmCalmCalmSW3SW3CalmSE4

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Huntsville, AL (17,4,5,8)
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Ground Weather Radar Station Northern 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 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.