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 7:11AM||Sunset 7:12PM||Wednesday September 26, 2018 12:23 AM CDT (05:23 UTC)||Moonrise 7:28PM||Moonset 7:34AM||Illumination 98%|
7 Day Forecast for Marine Location Near Lawrence, KSHourly EDIT Help
Area Discussion for - Topeka, KS  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus63 ktop 260442|
area forecast discussion
national weather service topeka ks
1142 pm cdt Tue sep 25 2018
Update to aviation forecast discussion...
Short term (this evening through Wednesday)
issued at 308 pm cdt Tue sep 25 2018
as of 18z Tuesday afternoon a neutrally tilted, midlevel trough was
positioned across the northern plains with broad cyclonic flow across
the central plains. An attendant surface trough extended from
eastern wi through northeast ks into west tx. Scattered
thunderstorms have developed within the last hour across northern
mo southern ia where better midlevel moisture and forcing for ascent
reside. Scattered showers and storms are possible across northeast
ks through the afternoon and early evening. Rap and hrrr forecast
soundings suggest upwards of 2,000 j kg of MLCAPE will reside across
east-central ks by mid to late afternoon, along with 40-50 kts of
effective shear. This combination could pose a damaging wind and
hail threat. Additional elevated thunderstorms are possible behind
the surface trough as sufficient residual low level moisture will
reside for upwards of 1,000 MUCAPE to reside across northeast ks.
Sufficient effective shear values will remain greater than 30 kts,
which could support a large hail potential into the early evening
hours. As the main midlevel trough moves east and the surface trough
exits the area to the southeast, all shower and thunderstorm
activity will come to an end from northwest to southeast early this
Gusty northerly winds between 20 and 30 mph will decrease after
sunset to below 10 mph. Cold air advection combined with plentiful
radiational cooling due to clear skies should yield a cool start to
Wednesday morning with lows in the mid to upper 40s.
A pleasant Wednesday is expected as the surface ridge axis moves
overhead, yielding sunny skies and light winds. High temperatures
are progged to remain in the upper 60s to near 70.
Long term (Wednesday night through Tuesday)|
issued at 308 pm cdt Tue sep 25 2018
pv anomaly diving south-southeast along the northern rockies helps
reinforce the surface ridge over the southern plains Wednesday night
into Thursday keeps the lower troposphere dry despite a return of
southerly winds. Modest warm air advection should bring highs back
into the mid 70s for most areas Thursday.
The next upper wave rotating southeast through the mean trough
brings another canadian cold front through the area Thursday night
and Friday with precipitation chances low with precipitable water
values remaining below normal. Best chances again look to be in
northeastern areas closer to the deeper forcing with the upper wave.
Chances do increase Friday night into Saturday with isentropic
upglide developing over the front as mid upper flow becomes more
zonal. Differences on the post-frontal anticyclone's intensity give
rise to varying solutions on precipitation potential but any amounts
look to be light. Confidence in temperatures for these periods is not
high with timing differences on the front Friday, persistence and
depth of cloud cover, and cloud precip potential Saturday.
The mean upper trough shifts east early next week though confidence
in the pattern in the western u.S. In specifics in the timing and
location of waves there is not high. West to southwest upper flow
over the central and northern plains should bring predominantly
southerly winds and above normal temps in place.
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
Top watches warnings advisories
Short term... Baerg
long term... 65
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
|Lawrence, Lawrence Municipal Airport, KS||9 mi||31 min||NNW 7||10.00 mi||Fair||50°F||48°F||93%||1021.6 hPa|
|Topeka, Philip Billard Municipal Airport, KS||18 mi||30 min||WNW 3||4.00 mi||Fog/Mist||52°F||48°F||86%||1021.7 hPa|
|Topeka, Forbes Field, KS||18 mi||30 min||NNW 5||10.00 mi||Fair||53°F||48°F||83%||1021.5 hPa|
Wind History from LWC (wind in knots)
|1 day ago||SE||SE||Calm||Calm||Calm||E||Calm||Calm||Calm||S||S||S||S||S||S|
|2 days ago||Calm||Calm||Calm||Calm||Calm||Calm||N||Calm||SE||SE||E||E||E||E|
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Wind Forecast for Topeka, KS (1,6,7,8)(on/off)  Help
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