Sunday, June25, 2017 L-36.com


Marine Weather and Tides
Ashland, IL

Version 3.4
What's New / NOTES
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.
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.

Sunrise 5:33AMSunset 8:34PM Sunday June 25, 2017 10:42 PM CDT (03:42 UTC) Moonrise 6:21AMMoonset 9:02PM Illumination 4% 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 Ashland, IL
   Hourly   EDIT   Help
location: 39.88, -90.05     debug


Area Discussion for - Central Illinois, IL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 kilx 260157
afdilx
area forecast discussion
national weather service lincoln il
857 pm cdt Sun jun 25 2017

Update
Issued at 855 pm cdt Sun jun 25 2017
forecast looks on track tonight and only a few minor adjustments
done with the sky cover. Lows mostly in the lower 50s overnight,
with a few upper 40s by knox and stark counties. Scattered cumulus
clouds dissipate quickly at sunset leaving clear to mostly clear
skies over central il at 9 pm. Wnw winds have also diminished to
5-15 mph and will weaken a bit more during this evening. 1025 mb
canadian high pressure over southern saskatchewan and ridging
into the mo valley will remain in place through the night
providing another fair and cool night to central southeast il. A
short wave over northern mn has scattered to broken 7-11k ft
clouds spreading SE into north central ia from mn. These clouds
will move into the il river valley late tonight and early Monday
morning where clear skies to become partly cloudy.

Short term (this evening through Monday)
issued at 243 pm cdt Sun jun 25 2017
breezy west northwest winds continue to pump unseasonably dry air
into central illinois this afternoon, with dew points only in the
mid to upper 40s at 2 pm. Southeast illinois was a holdout
earlier, but recent passage of a weak surface boundary is allowing
the dry air to move in as well. Extensive diurnal cumulus field as
far south as i-72 has brought partly sunny skies to areas north
of peoria, but most areas still enjoying abundant sunshine this
afternoon.

The relatively cool and dry conditions will continue into Monday,
as the broad longwave trough slowly edges eastward across the
midwest. Main item of concern will be an upper disturbance
currently just north of minnesota, which will slide southeast into
the great lakes region on Monday. Another weak boundary will drop
into central illinois Monday afternoon. Cape's of up to 1000 j kg
should be enough to trigger a few showers and thunderstorms
with this boundary, with the main focus by late afternoon closer
to the i-70 corridor.

Long term (Monday night through Sunday)
issued at 243 pm cdt Sun jun 25 2017
no significant pattern change expected until mid week, when the
western u.S. Ridge flattens into a zonal flow. One more cooler dry
day on tap for Tuesday until the warmer air spreads eastward, with
more typical temperatures and dew points for this time of year.

Second half of the weak will feature more of an active pattern, as
periodic waves traverse the country from west to east, while a
more substantial upper trough closed low takes shape over the
upper midwest. Precipitable water values of 1.75 to 2 inches late
week will enhance some of the rains that occur over the area. Some
showers and storms will be moving in as early as Wednesday
afternoon west of i-55, with the arrival of the first wave. This
boundary will become stationary in a west-east fashion as it
becomes parallel to the upper flow, resulting in an extended
period of rain chances into the first part of the weekend. Severe
weather trends a bit difficult to pick out this far out, dependent
on various mcs's and leftover mesoscale boundaries.

Aviation (for the 00z tafs through 00z Monday evening)
issued at 653 pm cdt Sun jun 25 2017
vfr conditions are generally expected to continue during this taf
period through 00z tue. Scattered diurnally enhanced cumulus
clouds with 6-8k ft bases will dissipate toward dusk 02z as breezy
wnw winds diminish around sunset to 4-7 kts. 1026 mb canadian high
pressure over southern saskatchewan and ridging into ks mo will
remain west of il through Monday evening keeping wnw flow going
with winds picking up to 8-13 kts by 15z 10 am Monday and a few
16-22 kt gusts Monday afternoon especially along i-74.

A northern stream short wave near the mn canadian border will drop
se into lake mi and lower mi Monday afternoon while a deepening
upper level trof into central il. Forecast soundings show capes
of near 1000 j kg available by Monday afternoon and this to
support isolated convection starting between 16-18z Monday from nw
to SE and diminishing from 22-24z at pia and bmi. Confidence too
low for a specific mention of thunderstorms (ts), but used vcsh
to address this for now.

Ilx watches warnings advisories
None.

Update... 07
short term... Geelhart
long term... Geelhart
aviation... 07


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
Jacksonville Municipal Airport, IL12 mi48 minW 410.00 miMostly Cloudy60°F49°F68%1022 hPa
Springfield - Abraham Lincoln Capital Airport, IL20 mi51 minW 610.00 miMostly Cloudy62°F51°F67%1021.5 hPa

Wind History from IJX (wind in knots)
11
PM
12
AM
1
AM
2
AM
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
Last 24hrSW4SW4SW6SW6SW5W7W3W3W4CalmW3NW7W10W15
G19
W10
G20
W13
G18
W18
G22
NW13
G21
W15
G22
W9NW10
G16
W7W3W4
1 day agoNW5W5W7W6W5W5W5W4W5W6W9NW9
G15
NW11
G16
NW15
G19
NW17
G21
W13
G20
W13
G19
NW16
G21
NW12
G18
NW11
G18
NW11NW10W3SW4
2 days agoS7S7S8S4S7S8S9SW7SW6W5NW7N16N14N16
G23
N14
G20
N13
G22
N12
G19
NW12
G16
NW11NW13
G18
NW10
G16
NW10NW11
G16
NW7

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 Central Illinois, IL (23,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Central Illinois, IL
   (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.