Sunday, December8, 2019
Privacy Policy
L-36.com


Marine Weather and Tides
Spring Green, WI

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:15AMSunset 4:24PM Sunday December 8, 2019 8:28 PM CST (02:28 UTC) Moonrise 2:39PMMoonset 3:22AM Illumination 92% Phase: Waxing Gibbous; Moon at 12 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 Spring Green, WI
   Hourly   EDIT   Help
location: 43.14, -90     debug


Area Discussion for - Milwaukee/Sullivan, WI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS63 KMKX 082357 AFDMKX

Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 557 PM CST Sun Dec 8 2019

UPDATE. Increasing low level convergence along strengthening low level trof and increasing low level moisture should result in areas of light rain and drizzle developing overnight. Will need to keep a close eye on pavement and low level temperatures overnight. Partial clearing across the northern CWA has allowed temps to fall into the low to mid 30s early this evening. Temps may even fall a few more degrees before stabilizing and then increasing later in the night as the deeper low level moisture pushes across the area. Never the less, temperatures in the far north may remain around freezing, increasing the threat for a period of light freezing rain or drizzle that may affect the Monday morning commute. Expect low clouds and areas of fog to accompany the light rain and drizzle overnight.

AVIATION(00Z TAFS). Expect low IFR ceilings to spread across southern WI overnight along with areas of light rain and drizzle. Fog will accompany the light precipitation. The fog could become localized dense.

PREV DISCUSSION. (Issued 225 PM CST Sun Dec 8 2019)

SHORT TERM .

Tonight - Confidence . Medium A frontal boundary sagging southeast from northern WI will gradually weaken somewhat, however as low pressure approaches from the central Plains, there will be an increase in low level moist advection with a lingering 850 baroclinic zone. Would expect stratus/fog/drizzle to evolve later in the night. The meso models show this with very light precipitation developing in the southeast and then advancing north/northwest throughout the area. By and large it looks like the cloud cover streaming northeast should keep temps from falling off too much. The far northwest cwa would be most vulnerable to any freezing potential very late in the night and the confidence of this is too low to issue any advisory at this juncture.

Monday and Monday night - Confidence . Medium After the initial moisture surge there may be a lull in precip for a time before the mid level energy and cold front bring another round of precipitation. Low clouds/fog and perhaps some drizzle will linger with broad surface/850 low in the area. As colder air air works in there will be the potential for some mix and then a change to all snow. Accums still look on the light side with any amounts an inch or less and more towards the northern portion of the forecast area during the afternoon and early evening. Some drying in the dendritic growth zone may result in some patchy freezing drizzle at times. Precipitaion will shift quickly Monday evening with the cold advection on northwest winds becoming prevalent.

LONG TERM .

Tuesday through Thursday Night - Confidence . High A deep upper level trough will allow arctic air to impact the area Tuesday through Wednesday night. Highs will mainly be in the teens to low 20s with overnight lows in the single digits to near zero towards central Wisconsin. Wind chills during this time will single digits and teens during the day and below zero overnight. Dry air will be in place with sunny skies until a shortwave moves through northern Wisconsin Thursday. Some light snow will be possible Thursday afternoon towards central Wisconsin but better chances are farther north. Warmer temperatures are expected Thursday with highs in the upper 20s to low 30s and wind chills in the single digits to teens.

Friday through Sunday - Confidence . Medium The pattern becomes more active in the extended with signs for a few shortwave troughs moving through. There is some uncertainty with the track and timing of these waves that could bring some rain and snow to the area. Have some slight chances in for now. Highs are expected to be in the mid to upper 30s with cooler temperatures for Sunday as a cold front moves through.

AVIATION(21Z TAFS) . VFR conditions expected into early this evening. High level cloudiness continues to stream wsw-ene. Lower ceilings well to our northwest behind frontal boundary. Still expecting light rain or drizzle to develop across the area esp after 06z or so. Cigs/vsbys will be heading down as airmass continues to moisten up, so some LIFR conditions are quite plausible very late tonight into Monday. Precipitation will trend to a mix and some light snow Monday afternoon into the early evening as colder air wraps in behind a cold front with precip likely to wind down rather quickly. With the loss of ice crystals during this time some spotty freezing drizzle is possible as well.

MARINE . Pressure gradient slackening as trough approaches from central WI. Gale warning has expired and will let the small craft advisory do the same at 21z. Next focus will be the uptick in winds on Monday evening in the wake of the cold front. Northwest winds may gust high enough to warrant the need for a small craft advisory Monday night, but at this time it looks as if the open lake gusts would remain below gale criteria.

MKX WATCHES/WARNINGS/ADVISORIES. WI . None. LM . None.

Update . mbK Tonight/Monday and Aviation/Marine . mbK Monday Night through Sunday . RAR


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. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lone Rock Tri-County Regional Airport, WI11 mi33 minESE 45.00 miFog/Mist31°F28°F89%1008.6 hPa
Iowa County Airport, WI21 mi34 minSE 310.00 miFair36°F32°F87%1007.8 hPa

Link to 5 minute data for KLNR

Wind History from LNR (wind in knots)
9
PM
10
PM
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
Last 24hrS6S105S9
G16
4S10
G18
S83S3SW7S6SW5SW6SW5SW8SW8SW6SW6S6S7NE3E4CalmE4
1 day agoCalmCalmN3CalmCalmE3CalmNE4CalmSE3SW4CalmS4SW9SW10S9S8S10S12S8S8S8S10S8
2 days agoCalmW6NW8N12
G19
NW13
G18
N13
G26
N12
G20
N18
G24
NW10
G20
NW8NW11
G18
NW65N6W9NW8NW5NW6W9NW4N4CalmCalmCalm

Tide / Current Tables for
   EDIT   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS 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

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Milwaukee/Sullivan, WI (21,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Milwaukee, WI
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Cookie Policy:
This webiste uses cookies to save your settings. No personal information is saved. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. I do not keep site logs longer than I need to to keep bad actors off the site. Basically, I delete them after looking at them. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
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.