Marine Weather and Tides
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.
|Sunrise 6:30AM||Sunset 6:46PM||Wednesday September 19, 2018 3:10 PM CDT (20:10 UTC)||Moonrise 3:50PM||Moonset 1:24AM||Illumination 74%|
7 Day Forecast for Marine Location Near Guntersville, ALHourly EDIT Help
Area Discussion for - Huntsville, AL  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus64 khun 192001|
area forecast discussion
national weather service huntsville al
issued by national weather service birmingham al
301 pm cdt Wed sep 19 2018
Near term (tonight)
issued at 301 pm cdt Wed sep 19 2018
deep layer ridge will slide across the area this afternoon and
tonight, and continue to suppress convection. Do not expect anything
more than a scattered CU field through the rest of the day, which
will diminish quickly with sunset. Valley and river fog is possible
again tonight, with temperatures in the upper 60s to lower 70s.
Short term (Thursday through Friday night)
issued at 301 pm cdt Wed sep 19 2018
by Thursday afternoon, the deep layer ridge will have strengthened
slightly and shifted eastward, centered over the western carolinas.
Another day of dry, mostly sunny and hot conditions can be expected.
With drier air in place and dewpoints mixing out into the 60s during
the afternoon, heat index values should remain below 100f. Will
begin to see a pattern shift Thursday night as the ridge moves toward
the east coast and a weak trough moves across the plains. Moisture
will increase as mid level winds become southerly. Cannot rule out a
shower or two overnight, but will maintain only a 10 pop. Increasing
moisture transport will lead to isolated to scattered showers and
thunderstorms Friday and Friday night, with the best coverage in the
west, as drier air associated with the lingering upper level ridge to
our east nudges into northeast alabama.
Long term (Saturday through Tuesday)
issued at 341 am cdt Wed sep 19 2018
only minor changes needed to the extended to account for differences
in model timing of an approaching front and increased rain chances
beginning Saturday. The previous discussion remains valid and is
By early Saturday, a surface front will be draped roughly sw-ne
across the area. The exact location (down to county scales) is
uncertain at this time. Nevertheless, with the front in proximity,
broad scale low-lvl mass moisture convergence will provide the
necessary forcing for the eventual development of showers and
thunderstorms in the unstable environment. It appears as though
instability CAPE will still be generally modest with ml CAPE values
forecast below ~1000 j kg and sb CAPE generally below ~1500 j kg.
Shear is also likely to be rather weak during the weekend, with
environmental flow below 25 kts through most of the tropospheric|
column. With that said, the long, skinny CAPE profiles, high pws,
high wbz heights combined with slow cell movement could lead to some
locally heavy rainfall where any stronger cells do occur. The front
may move initially to our south on Sunday before moving back across
the area during the day, triggering more shower and thunderstorm
activity. The increased likelihood of impacts associated with the
frontal boundary have lead to an increase in pops for the weekend
into the likely category for the afternoons.
The sheared remnants of upper vorticity associated with a shallow
long wave trough will still be present in the region as the surface
boundary moves to our north. However, gradual strengthening and
deepening southerly flow will develop across the region as a
mid upper ridge strengthens off the coast in the western atlantic.
Sufficient instability and forcing will lead to the potential for
scattered showers and thunderstorms for both Monday and Tuesday.
Temperatures will remain warm with daytime high values likely in the
mid or upper 80s at most spots, but this will ultimately depend on
the amount of convection and associated cloud cover.
A look ahead still indicates good chances for the passage of a
"fall-like" cold front around the middle to latter part of next week.
Aviation (for the 18z tafs through 18z Thursday afternoon)
issued at 1242 pm cdt Wed sep 19 2018
cu field developing across the region this afternoon, with heights
around 5kft. Upper level ridging and drier air will limit cloud
growth and convection this afternoon. Southeasterly to southerly
winds will become light or calm this evening, with prevailing clear
skies. Confidence in light fog at terminals is too low to include at
this time, and will lean toward persistence and maintainVFR
conditions through the night. Winds increase from the southeast
Thursday morning at 4-5kts.
Hun watches warnings advisories
Near term... Bhm
short term... Bhm
long term... Kdw
for more information please visit our website
at weather.Gov huntsville.
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|Albertville, Albertville Municipal Airport, AL||10 mi||76 min||SE 4||10.00 mi||Partly Cloudy||90°F||69°F||52%||1016.3 hPa|
Wind History from 8A0 (wind in knots)
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|2 days ago||NE||NE||N||N||NE||N||N||N||Calm||Calm||Calm||Calm||Calm||SW||Calm||S||Calm||Calm||Calm||W||Calm||NW||N||N |
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Wind Forecast for Huntsville, AL (16,3,4,5)(on/off)  Help
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