Wednesday, March29, 2017 L-36.com


Marine Weather and Tides
Lawrence, KS

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:06AMSunset 7:43PM Wednesday March 29, 2017 2:16 AM CDT (07:16 UTC) Moonrise 7:23AMMoonset 8:44PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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
    EDIT      (on/off)   Help
7 Day Forecast for Marine Location Near Lawrence, KS
   Hourly   EDIT   Help
location: 38.93, -95.34     debug


Area Discussion for - Topeka, KS
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 ktop 290455
afdtop
area forecast discussion
national weather service topeka ks
1155 pm cdt Tue mar 28 2017

Update to aviation forecast discussion...

Short term (this evening through Wednesday)
issued at 323 pm cdt Tue mar 28 2017
current WV and vis imagery show and upper low digging into the
southern rockies over new mexico. A short wave trough is rotating
around this low developing a surface low over the tx panhandle. As
this low pulls out of the region it will undergo further
cyclogenesis over the southern plains into the central plains
overnight tonight.

As a result of this system developing and low level clouds in place
today, highs this afternoon could only reach into the mid 50s. With
cloud cover only increasing, expect that temps only dip into the low
to mid 40s over the area. As broad scale lift and the warm front
approach from the south, expect showers and rain to lift into the
area from the southwest. The main threats with this system will
come as coverage and intensity of rainfall likely pick up after
midnight and reach peak intensity into the rush hour time frame on
Wednesday especially for areas along and south of i-70 as isentropic
lift increases. From here, the upper low will slowly pin-wheel
through the area into the mid and southern ms valley regions with
rain wrapping around behind the low itself creating a band of low to
mid level frontogenetical response in the deformation zone.

Temperature profiles are supporting only rain though so not
concerned with mixed precipitation types. Rainfall amounts
generally through Thursday morning could range from 1-2 inches with
locally heavier amounts possible. Flood concerns will likely
increase over some smaller river and creek basins, but due to the
precip event being spread out over a longer period of time, most
concerns should be limited. There will be some small potential for
some elevated storms to also develop over night tonight and again
for a period on Wednesday afternoon as shear and instability
increase. So a few rounds of embedded thunder are possible along
with maybe some small hail. But, overall strong storm potential may
stay limited as better quality overall moisture and the surface low
feature stay just southeast of the forecast area.

With the area remaining largely in the cool sector, highs on
Wednesday look to only reach into the 40 north of i-70 with some
upper 50s and possibly low 60s in very southern portions of the
forecast area.

Long term (Wednesday night through Tuesday)
issued at 323 pm cdt Tue mar 28 2017
the axis of the upper low meanders over northeast kansas by Thursday
morning. Residual lift on the backside of the low develops scattered
showers over much of the CWA through early afternoon, gradually
coming to an end by the evening. Weak ridging aloft builds in
temporarily on Friday between systems with the best chance for
seeing partly cloudy skies in the afternoon. Temperatures hover
below normal values in the middle 50s before the area warms back to
the 60s Saturday and Sunday, as stronger, easterly winds advect
warmer air westward. Great uncertainty still exists on the weekend
system dependent on cloud thickness, subsequent temps and
precipitation with the next incoming upper trough from the southwest
conus. Model guidance has had a difficult time resolving the timing
and track of this system, with multiple vorticity maxima rotating
through. Overall trend shows the initial wave developing the first
round of rainfall over northeast kansas on Saturday, inserting
highest pops on Saturday evening. Sunday and Monday have the upper
wave being ejected east by another shortwave trough, focusing much
of the moisture further south into oklahoma. Still could see rain
showers south of interstate 70 in east central ks, however qpf
amounts are generally light through Monday. Upper pattern remains
active through mid next week with both the GFS and ECMWF advertising
another upper low sweeping over the northern plains Tuesday and
Wednesday.

Aviation (for the 06z tafs through 06z Wednesday night)
issued at 1154 pm cdt Tue mar 28 2017
ifr ceilings along with periods of rain will move across the
terminals after 6z. Visibilities may be reduced through the
morning hours into the early afternoon hours down to 1 to 2 miles
in rain. There may be an isolated thunderstorm at the terminals,
especially this afternoon.

Top watches/warnings/advisories
None.

Short term... Drake
long term... Prieto
aviation... Gargan


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lawrence, Lawrence Municipal Airport, KS9 mi25 minNE 12 G 206.00 miThunderstorm Light Rain Fog/Mist53°F50°F89%1013.2 hPa
Topeka, Philip Billard Municipal Airport, KS18 mi24 minNNE 11 G 222.50 miThunderstorm in Vicinity Heavy Rain Fog/Mist51°F51°F100%1012.9 hPa
Topeka, Forbes Field, KS18 mi24 minENE 5 G 193.00 miThunderstorm in Vicinity Rain Fog/Mist52°F51°F97%1013.7 hPa

Wind History from LWC (wind in knots)
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
Last 24hrN5NE6N5N4NE5NE7NE6N5NE6E7E10NE7NE9E11NE12E12NE12NE11NE11E12NE13E14NE16NE12
G20
1 day agoNE9N5N5NW7NW8N8N9N7NW6NW8N7N10N8N7NW7N8N8NW5N3N6N5N4N4N5
2 days agoNW4W6W4W5W4NE4W4W4SW6SW7W64NW3N4N5NE7CalmN8N9E8E3N6NE5NE14

Tide / Current Tables for
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Midwest    EDIT
Geos

Wind Forecast for Topeka, KS (3,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Kansas City/Pleasant Hill, MO
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.