Wednesday, September26, 2018 L-36.com


Marine Weather and Tides
Chapman, KS

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 7:18AMSunset 7:18PM Wednesday September 26, 2018 5:24 AM CDT (10:24 UTC) Moonrise 7:34PMMoonset 7:40AM Illumination 97% Phase: Waning Gibbous; Moon at 16 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 Chapman, KS
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location: 38.89, -97     debug


Area Discussion for - Topeka, KS
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Fxus63 ktop 260758
afdtop
area forecast discussion
national weather service topeka ks
258 am cdt Wed sep 26 2018

Short term (today and tonight)
issued at 256 am cdt Wed sep 26 2018
very seasonal and pleasant weather settles in for the next 24-36
hours.

Current WV loops suggest the northern plains upper trough is
shifting east into the western great lakes region with northwest
flow pattern from the pac northwest into the upper plains. A
shortwave is evident digging into the desert southwest with a
complex of nocturnal convection ahead of this within an area of
ascent over eastern new mexico and the texas panhandle region.

Meanwhile, surface cold boundary is stretched from the central great
lakes region into the southern plains. An area of modified canadian
high pressure continues to work into the central plains with some
dewpoints in the upper 30s over north central kansas. Decreasing
cloud coverage and calm winds, along with dry air filtering into the
region, has allowed for a very cool night with low temperatures
dipping into the mid to low 40s across the area.

Into the day today, a dry atmosphere will hold in place over the
region with generally light and variable winds over the area with
only some high clouds making their way back into the forecast area
from the west. High temperatures today should top out around a very
pleasant 70 degrees. Weak return sets up into the evening Wednesday
with overnight low temperatures a bit higher into the upper 40s. A
dry forecast should remain in place.

Long term (Thursday through Tuesday)
issued at 256 am cdt Wed sep 26 2018
Thursday through Saturday, a broad longer wave length upper trough
will continue across the upper midwest.

Thursday, the surface ridge across eastern ks during the early
morning hours will shift east and winds will become southerly on the
west side of the ridge axis and east of a lee surface trough across
the central high plains. Highs will warm into the lower to mid 70s.

Thursday night through Saturday night, a shorter wave length upper
level trough will dig southeast out of west central canada and
amplify as it digs southeast across the northern high plans into the
central plains. Strong low-level CAA across the central plains early
Friday morning will cause a surface front to rapidly push southward
across the CWA during the mid morning hours through the early
afternoon hours of Friday. There may be enough ascent and residual
moisture for scattered showers to develop behind the surface front.

High temperatures on Friday may occur in the late morning and early
afternoon hours with highs around 60 across north central ks and
highs around 70 across the southeast counties. After fropa,
temperatures may become steady or fall through the afternoon hours.

The front may become stationary across southern ks on Friday and
weak isentropic lift north of the front may provide a chance for
occasional light rainshowers across the CWA into the afternoon hours
of Saturday. High temperatures on Saturday will continue to be in
the 60s.

Sunday through Wednesday, the upper air pattern will begin to change
as an upper level trough moves onshore across the western us and
lifts northeast into the northern plains by Monday. The stronger
ascent ahead of the h5 trough will remain north of the CWA as a
second h5 trough slowly moves onshore across southern ca by the
middle of next week. A broad upper ridge will amplify across the
southern us and will extend from tx, northeast into the mid atlantic
states.

The surface front over southern ks Sunday morning will undergo
frontolysis as a lee trough deepens across the the central high
plains. Southerly low-level flow will develop across eastern ks and
richer gulf moisture will advect northward into the central plains.

Highs through early next week will warm into the lower to mid 80s.

Overnight lows will only dip into the 60s with the richer gulf
moisture in place. The ECMWF does show a weak front pushing
southward across the CWA Monday afternoon after the first h5 trough
lifts northeast into the northern plains and upper midwest, so there
could be a few scattered showers and thunderstorms Monday afternoon
and evening. The front will lift back north of the CWA Tuesday
morning. Another weak front may push southeast into the cwa
Wednesday afternoon bringing another chance for showers and
thunderstorms.

Aviation (for the 06z tafs through 06z Wednesday night)
issued at 1141 pm cdt Tue sep 25 2018
for the 06z tafs,VFR conditions are expected through the period
with northwesterly winds shifting to the south southeast by
Wednesday evening.

Top watches warnings advisories
None.

Short term... Drake
long term... Gargan
aviation... Hennecke


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fort Riley - Marshall AAF, KS17 mi89 minN 010.00 miFair45°F42°F91%1023.5 hPa

Wind History from FRI (wind in knots)
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Last 24hrS5S5S5SW6S7W6N12
G21
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N9N6N7CalmNE3CalmCalmCalmCalmCalmCalm
1 day agoS5SE3SE6S6S9S13
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S10S11S7S5SE8S10S11S8SW3SW4CalmCalmSE3
2 days agoCalmS4S4CalmCalmS5S11S9SE9SE7S10S7SE8SE5SE6SE4SE6SE5SE5SE4S11S7S3S3

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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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

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Wind Forecast for Topeka, KS (6,6,7,8)
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Ground Weather Radar Station Topeka, KS
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Disclaimer:
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.