Marine Weather and Tides
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.
|Sunrise 7:18AM||Sunset 5:26PM||Thursday January 17, 2019 11:39 AM CST (17:39 UTC)||Moonrise 2:11PM||Moonset 3:31AM||Illumination 88%|
7 Day Forecast for Marine Location Near Russellville, ARHourly EDIT Help
Area Discussion for - Little Rock, AR  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus64 klzk 171030|
area forecast discussion
national weather service little rock ar
430 am cst Thu jan 17 2019
Short term Today through Friday night
scattered shra and even a few rumbles of thunder were noted over
mainly north and central ar early this mrng. The activity was assocd
with a weak upper impulse moving ewd along the mo ar brdr region.
The bulk of the rainfall with this feature is expected to shift to
the E of the fa by mid morning, with just some lingering rain
chances mentioned over ERN ar.
Expect to see areas of fog and drizzle persist this mrng over the
fa. A few locations wl see locally dense fog at times, but conds
don't necessitate any advisories at this time and wl cont to monitor
thru the mrng hrs. The assocd sfc low wl wl pass acrs the fa later
today, along with a trailing cdfnt. The bndry wl bring a wind shift,
along with a shot of cooler air.
Otherwise, a weak ridge of high pres wl bld into the region by tngt,
but wl quickly shift to the E by Fri thanks to the progressive zonal
flow aloft. The next storm system, now moving into the WRN u.S., wl
be working into the plains states on Fri and into ar Fri ngt. Rain
chances wl start to incrs Fri over WRN ar, becoming widespread
statewide Fri ngt. The impact of this system wl cont into the
Long term Saturday through Wednesday
wintry weather and cold temps still appear likely this weekend, so
no wholesale overhaul to the forecast this morning. Main changes
were to increase weekend temps just a bit from the previous forecast
and increase snow accumulation slightly, mainly in northern ar.
The base of a large upper trough and associated surface cyclone will
be positioned across northern ar to begin the period. There is more
agreement among model data taking the arctic surface high a bit
further north, so expecting less influence from that feature,
although the pressure gradient will still be relatively tight with
elevated winds anticipated Saturday through Sunday morning. Precip
wise... Thinking mostly liquid rain until Sat afternoon and beyond
when CAA ramps up in the wake of a cold front sweeping west-to-east.
Given the speed at which colder air will arrive and effectively
eradicate any warm nosing in the lower boundary layer, the change to
all snow will be quick across western and northern ar through sat
The influence of meso-to synoptic-scale deformation INVOF and to the
north west of the surface low will need to be monitored carefully|
through subsequent forecast cycles. The colder ECMWF solution
maintains a more southerly track and hints at better forcing across
northern ar compared to the warmer and more northerly gfs, and
preference is still weighted toward that solution given its run-to-
run consistency and better clustering among ensemble members. Snow
accumulation was ramped up slightly as a result with the with storm
total values of 1 to 2 inches, mainly north of the ar river valley.
While some data suggest this is a conservative amount, having a
difficult time squeezing out more snow than is currently forecast,
although there is some possibility accumulations will need to be
increased further. Impacts are not anticipated to be widespread but
the rapid onset of freezing temps and snow may cause minor travel
issues late Sat into sun.
Potential dry-slotting as well as waning moisture should largely
prevent accumulating snow farther east south in central and SE ar,
although routing of colder air through the delta may support minor
(less than a half inch) accumulations there. Would not be surprised
to see some flakes flying overnight Sat into Sun though, assuming
moisture isn't scoured too quickly. Again, timing is more predicated
on the slower ECMWF solution, so some adjustments to precip
onset end timing will be needed. Current thinking has precip ending
before dawn Sunday morning.
Temperature-wise, the overall upward adjustment to hourly temps and
resultant min temps Sun and Mon morning suggest less potential for
readings in or near the single digits, although mid-to-upper 10s are
still possible in the northernmost counties Sunday morning. Minimum
wind chill values should range from the single digits above zero
north to teens and low 20s elsewhere Sunday morning. This should be
the coldest morning of the period, carrying with it the highest
potential for dangerous cold.
As surface ridging INVOF the great lakes slides east Monday, a
gradual return to southerly surface flow is expected as more upper
energy queues up across the western conus. Attm, there are notable
model discrepancies handling this next system, although rain
potential will increase heading into tues Wed of next week. The
overall temperature trend will be moderating through around mid-
week, although slightly colder air associated with the
aforementioned disturbance could yield a bit of wintry mix in
northern ar before that system kicks east Wed into thurs.
Lastly, many thanks to surrounding wfos for their input
collaborating the forecast this morning.
Lzk watches warnings advisories None.
Short term... 44 long term... Cooper
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Russelville Municipal Airport, AR||4 mi||46 min||S 5||10.00 mi||Overcast||56°F||53°F||90%||1017.2 hPa|
Wind History from RUE (wind in knots)
|1 day ago||Calm||NW||Calm||Calm||S||Calm||Calm||Calm||Calm||Calm||Calm||SE||SE||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||SE||SE||Calm|
|2 days ago||W||W||W||NW||NW||NW||W||NW||W||W||W||W||SW||NW||SW||W||W||SW||SW||S||W||W||Calm|
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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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Wind Forecast for Little Rock, AR (12,3,4,5)(on/off)  Help
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