Marine Weather and Tides
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
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|Sunrise 5:59AM||Sunset 7:53PM||Monday August 19, 2019 10:27 AM MDT (16:27 UTC)||Moonrise 10:05PM||Moonset 9:51AM||Illumination 83%|
7 Day Forecast for Marine Location Near Rapid City, SDHourly EDIT Help
Area Discussion for - Rapid City, SD  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus63 kunr 191112|
area forecast discussion for western sd and northeastern wy
national weather service rapid city sd
512 am mdt Mon aug 19 2019
Discussion (today through Sunday)
issued at 211 am mdt Mon aug 19 2019
upper flow over the northern plains is nearly zonal, with slight
ridging to the west. Skies across the region are mostly clear.
With a surface high to the east and a low to the northwest, winds
across the CWA are generally light and southerly. Temperatures are
in the 50s to lower 60s.
As breezy southwesterly winds develop across much of the CWA today,
warm and dry air will advect into the area. Temperatures will rise
into the lower 90s, beneath sunny skies. A couple of shortwaves will
cross the region this evening, and the cams are picking up on some
thunderstorms tapping into the instability that will develop across
central sd. Thunderstorms may clip perkins and tripp counties, but
most of the area will remain dry.
A cool front will slowly push into the area from the north on
Tuesday. Highs will be cooler - but still warm - in the 80s. With
the surface high sliding into the region and continued weak upper
ridging to the west, dry conditions are expected during the day.
However, a shortwave will cross the region in the evening, bringing
the chance for some thunderstorms. Decent shear and some weak to
moderate instability could allow for a few stronger storms,
especially along the sd NE border and around the black hills area.
Cooler air will continue to sink into the region on Wednesday,
resulting in highs in the 70s to lower 80s. The upper ridge axis
will cross the northern plains in the evening, along with more weak
upper-level energy that could spark a few more storms. Thursday
evening has the greatest chance for thunderstorms, as a stronger|
trough moves through. Chances for storms continue into Friday, but
the weekend is looking drier at this time. Expect highs in the 80s
for the latter part of the week.
Aviation (for the 12z tafs through 12z Tuesday morning)
issued at 510 am mdt Mon aug 19 2019
(for the 06z tafs through 06z Monday night)
issued at 1017 pm mdt Sun aug 18 2019
patchy fog and ifr CIGS in low stratus are possible near the
sd neb border early this morning, otherwiseVFR conditions are
expected today and tonight. Isolated thunderstorms are possible
late this afternoon and early this evening over parts of
northwestern and south central south dakota.
Issued at 211 am mdt Mon aug 19 2019
today will be hot and dry, with highs in the 90s. Conditions will
be especially dry across northeastern wy, where minimum relative
humidity will dip to 10 to 15%. Although sustained winds aren't
expected to be very strong, soundings are showing gusts of 20 to
30+ kts mixing down to the surface across northeastern wy and
southwestern sd. Will upgrade to a red flag warning across the
northeastern wy plains. Considered including the southwestern sd
and southern black hills zones for similar conditions there;
however, greenness might be higher so will leave them out for now.
Unr watches warnings advisories
Wy... Red flag warning from noon today to 7 pm mdt this evening for
fire weather... Pojorlie
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. Follow links for more data.
|Rapid City, Rapid City Regional Airport, SD||9 mi||35 min||SE 5||10.00 mi||Fair||72°F||63°F||73%||1011.2 hPa|
|Ellsworth Air Force Base, SD||10 mi||91 min||S 3||10.00 mi||Fair||73°F||59°F||63%||1011.3 hPa|
Link to 5 minute data for KRAP
Wind History from RAP (wind in knots)
|1 day ago||N||N||N||N|
|2 days ago||SE||SE||SE||E||NE||NE||NE||NE||Calm||NW||Calm||NW||NW||NW||NW||NW||W||N||NE||N||N |
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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.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Rapid City, SD (12,3,4,5)(on/off)  Help
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