Tuesday, November21, 2017 L-36.com


Marine Weather and Tides
Urbana, 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 6:44AMSunset 4:33PM Tuesday November 21, 2017 5:59 AM CST (11:59 UTC) Moonrise 10:18AMMoonset 8:13PM Illumination 8% Phase: Waxing Crescent; Moon at 3 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 Urbana, IL
   Hourly   EDIT   Help
location: 40.11, -88.21     debug


Area Discussion for - Central Illinois, IL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 kilx 211150
afdilx
area forecast discussion
national weather service lincoln il
550 am cst Tue nov 21 2017

Short term (today and tonight)
issued at 250 am cst Tue nov 21 2017
08z 2 am surface analysis shows 984 mb low pressure near lake
nipigon canada (just north of lake superior) with its cold front
extending through central wi into eastern ia and NW mo. Breezy ssw
winds ahead of the cold front over central il with winds gusting
to 20-30 mph. These breezy ssw winds along with some bands of
mid high clouds keeping temps up tonight, currently ranging from
mid 30s in far southeast il over lawrence county, to the upper
40s over west central il from macomb to pittsfield west. Aloft a
517 dm 500 mb low was NW of lake superior and embedded in a larger
upper level trof over the midwest and extending southward across
the ms river valley.

00z forecast models take low pressure eastward to the southern tip
of james bay canada by 18z noon today and into NW quebec by 00z 6
pm as it weakens to 990 mb. This will pivot the cold front se
across the heart of central il by noon and pass the wabash river
by late afternoon. Moisture still appears limited with frontal
boundary, though some short range models now showing some patches
over QPF over northern CWA this afternoon. Added slight chances of
light rain showers mainly NE of i-74 this afternoon. Highs today
range from mid 40s over the il river valley, to mid 50s by
lawrenceville. Brisk NW winds behind the cold front gusting 25-30
mph will drop temps to the lower 30s northern CWA by 6 pm and
40-45f in southeast il, SE of i-70.

1032 mb canadian high pressure over central alberta canada will
settle into eastern ks overnight and ridge into il by sunrise
wed. This will decrease clouds and winds and bring a much colder
night tonight. Lows tonight will be in the lower 20s over central
il and mid 20s in southeast il. Could even dip into upper teens nw
of il river over parts of knox and stark counties.

Long term (Wednesday through Monday)
issued at 250 am cst Tue nov 21 2017
high pressure ridges from texas NE into the ohio river valley at
sunset Wed and to bring lighter winds and ample sunshine but cold
temperatures. Highs 35-40f Wed with coldest readings from i-74 ne
and lows Wed night in the mid to upper 20s. High pressure settles
over the mid atlantic states Thu while a weak cold front washes
out as it drops into northern il during Thursday. Not quite as
cold on thanksgiving day with highs in the mid to upper 40s.

Milder highs in the 50s on Friday with breezy ssw winds, similar
to yesterdays readings, with areas from springfield SW approaching
60f.

Models take a 980 mb surface low pressure eastward across central
ontario province Friday night and pushes another cold front se
across cwa. Have slight chances of light rain showers from i-74 ne
Friday evening. A deep upper level trof digs over the eastern
states during this weekend and brings in colder air back to the
area. Highs Sat range from mid 40s northern CWA to 50-55f southern
cwa, with temps likely slipping during the day. Highs Sunday only
in the upper 30s and lower 40s despite ample sunshine. Upper level
ridge builds over the great plains on Sunday night and Monday and
brings il fair wx with moderating temperatures. Highs Monday in
the low to mid 40s, and in the upper 40s to mid 50s next Tuesday.

Gfs and ECMWF models similar in taking low pressure eastward
across northern parts of nd mn and lake superior Monday night tue
and brings a cold front thru central il Tue afternoon evening with
next chance of showers.

Aviation (for the 12z tafs through 12z Wednesday morning)
issued at 545 am cst Tue nov 21 2017
vfr conditions expected to continue across the central il airports
through 12z 6 am wed. 985 mb low pressure near hearst canada
between james bay and lake superior, has a cold front near the
ia il border. This front will sweep southeast to the il river by
15z 9 am, and reach dec and cmi about 18z noon. Llws will occur a
couple more hours across central il airports with 1-1.5k ft wsw
winds of 35-40 kts. Ssw winds 10-15 kts early this morning will
veer wsw by mid morning, then shift NW behind the cold front
between 15-18z and gusts 18-25 kts into the afternoon. NW winds
diminish to 6-10 kts early this evening as 1033 mb high pressure
along the southern alberta and saskatchewan province line settles
into the central plains overnight. Broken to overcast mid level
clouds 8-12k ft will push SE to il river early this morning and
during mid late morning at dec and cmi. Ceilings could get as low
as 4-5k ft this afternoon especially along i-74 where isolated
light rain showers possible, but too isolated in nature to mention
in the tafs.

Ilx watches warnings advisories
None.

Short term... 07
long term... 07
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
University of Illinois - Willard, IL6 mi66 minSSW 1410.00 miFair38°F30°F73%1009.8 hPa
Rantoul National Aviation Center Airport, IL13 mi64 minSW 1110.00 miFair40°F32°F72%1008.8 hPa

Wind History from CMI (wind in knots)
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
3
AM
4
AM
5
AM
Last 24hrS12S13S14S17S18
G25
S22
G28
S21
G27
S23
G29
S21
G27
S20
G25
S18S15S18S18S18S18S15S17S19S20S19
G26
S20S19S14
1 day agoNW13W17NW16W16NW14
G20
W13W16W16W15W15W10W8W10W6W6SW8SW8SW9SW9SW9S9S10S9S11
2 days agoS13S12S11S23
G31
N11N25
G30
N26
G33
N19
G28
NW19
G31
N22
G31
NW19
G29
NW21
G31
NW21
G27
NW22
G28
NW17
G25
NW14
G20
W12NW13NW15
G23
W15W14W12W13NW14

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 (6,6,7,8)
      (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.