Marine Weather and Tides
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 6:33AM||Sunset 8:21PM||Monday April 23, 2018 9:55 PM CDT (02:55 UTC)||Moonrise 12:28PM||Moonset 2:18AM||Illumination 63%|
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7 Day Forecast for Marine Location Near Aten, NEHourly EDIT Help
Area Discussion for - Sioux Falls, SD  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus63 kfsd 232321|
area forecast discussion
national weather service sioux falls sd
621 pm cdt Mon apr 23 2018
Short term (this evening through Tuesday)
issued at 307 pm cdt Mon apr 23 2018
april showers (rain not snow) are on the way! The next measurable
precipitation arrives tonight into Tuesday as a shortwave currently
over the northern plains translates southeast into the dakotas.
Latest model runs place the highest QPF (0.10"-0.60") along and west
of the i-29 corridor. Thermal profiles suggest a deep and rich bl
moisture along and west of the james river, starting in the
nighttime and continuing through the day on Tuesday. With that
said, better chances fall across southeast sd, likely along the
missouri river valley; albeit areas along and east of i-29 could
see sprinkles very light rain. Most of the instability remains
farther south of the forecast area, therefore only rain chances
Scattered showers will begin to move across the mo river after 07z
Tuesday, then spreading east-southeast across southeast south dakota
throughout the day, before tapering off early in the evening hours.
With increasing clouds and showers, Tuesday will mainly in the 50s
to mid 60s over northwest iowa.
Long term (Tuesday night through Monday)
issued at 307 pm cdt Mon apr 23 2018
a surface ridge settles in by Wednesday, leaving the region dry
with plenty of sunshine and mild temperatures. Highs will reach
the upper 50s and 60s.
A weak disturbance and associated cold front will move southeast
from north dakota into iowa by Thursday. Looks to be a fast-moving
system, therefore not much is expected in terms of precipitation. As
for now, better chances for light rain looks to be along and east of|
a line from sux to worthington to marshall which is where better
omega lifting and saturated layer persist. Low-level layers should
remain saturated so mostly cloudy conditions are still expected
through mid-afternoon, bringing more sunshine by late afternoon and
For the remainder of the extended, temperatures will be the main
feature. Building heights move in behind the frontal boundary,
leaving the forecast area mostly dry. With southerly surface winds
prevailing through the weekend, near to above normal temperatures
are expected with highs reaching the 70s. Model guidance diverges
in temperatures, bringing cooler temperatures; therefore have
raised temperatures from Friday to Monday by blending superblend
and consraw to produce highs in the 60s and 70s.
Aviation (for the 00z tafs through 00z Tuesday evening)
issued at 614 pm cdt Mon apr 23 2018
mid and high level clouds will be on the increase from west to
east through the overnight hours ahead of our next incoming
system. Light rain showers are possible mainly along and west of
the james river valley by after 09z Tuesday. Low endVFR to MVFR
ceilings are expected over this same area with khon being the
most likely to be impacted by these conditions. Kfsd ksux are
expected to remainVFR though the period.
Fsd watches warnings advisories
Short term... 05
long term... 05
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Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Yankton, Chan Gurney Municipal Airport, SD||7 mi||59 min||NE 6||10.00 mi||Fair||62°F||35°F||37%||1020.2 hPa|
Wind History from YKN (wind in knots)
|1 day ago||E||E||NE||E||NE||E||E||N||NE||Calm||Calm||E||E||SE||SE||SE|
|2 days ago||SE||NE||NE||E||E||NE||NE||NE||NE||NE||NE||NE||NE||NE||E||E||E||NE||E||E||E||E||Calm||E |
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GOES Local Image of Midwest 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 Sioux Falls, SD (22,6,7,8)(on/off)  Help
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