Wednesday, August21, 2019

Marine Weather and Tides
Reedsburg, WI

Version 3.4
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 Allen

Sunrise 6:08AMSunset 7:53PM Wednesday August 21, 2019 3:05 PM CDT (20:05 UTC) Moonrise 10:01PMMoonset 10:57AM Illumination 63% Phase: Waning Gibbous; Moon at 21 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
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7 Day Forecast for Marine Location Near Reedsburg, WI
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location: 43.58, -90     debug

Area Discussion for - Milwaukee/Sullivan, WI
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Fxus63 kmkx 211802 aac
area forecast discussion... Updated
national weather service milwaukee sullivan wi
102 pm cdt Wed aug 21 2019

The cold front has moved through most of southern wisconsin early
this afternoon. Dewpoints are beginning to drop from the
northwest along with somewhat breezy northwest winds behind the
front. This front has also brought a halt to the warming temps
most places as expected.

Aviation(18z tafs)
There are a few spots of MVFR ceilings out there early this
afternoon, but conditions should continue to transition to allVFR
into mid-afternoon. Breezy northwest winds behind a cold front
will become light for this evening and overnight as high pressure
begins to move into the area.

Showers and storms are expected to remain south of the state line
through this afternoon, with dry weather likely into Thursday.

Forecast models are trying to spit out a few showers tomorrow
afternoon, but not seeing much moisture in soundings, so kept the
forecast dry.

May see a little fog in the typical low lying areas such as the
wisconsin river valley tonight.

Prev discussion (issued 929 am cdt Wed aug 21 2019)

could see a shower or two clip the southern forecast area today,
but otherwise most places will remain dry. Looks like a mix of
clouds and Sun through the day today. The forecast looks on track
for the remainder of today.


low pressure will move across ontario this morning and continue
to drag a cold front across the lake today. North wind gusts of 15
to 20 knots are expected behind the front today. There will be a
brief lull in winds this evening. Canadian high pressure will
then move across ontario bringing another weak front across the
lake by early Thursday. North winds will increase somewhat on
Thursday as a result. As the high shifts east, northeast winds are
expected Thursday night and Friday.

Prev discussion... (issued 624 am cdt Wed aug 21 2019)

patchy fog is out there again this morning. A cold front over
central wisconsin will move across southern wisconsin over the
next few hours. It will bring light north winds and with sunrise
don't expect fog to become dense.

Aviation(12z tafs)...

patchy fog early this morning. A cold front will move through
this morning bringing light north winds. There may be a few gusts
of 15 to 20 mph during the afternoon. Ceilings may briefly be
MVFR this morning as the front moves through. Not expecting it to
be widespread or long enough of a duration to include in tafs.

Otherwise expect scattered to broken clouds around 3-4kft today.

Skies will clear later this afternoon. Light northeast winds will
prevail on Thursday. MVFR ceilings may move in from the lake on
Thursday, otherwise scattered clouds around 4kft will dominate.

Prev discussion... (issued 308 am cdt Wed aug 21 2019)
short term...

today and tonight... Forecast confidence high.

A cold front will move through early Wednesday morning as a trough
of high pressure extends from canada into the northern plains. It
will bring north winds and drier air mass. Clouds are expected
during the morning along and behind the front, but then they will
clear during the afternoon.

An upper low will be parked over ontario into Thursday. A shortwave
will pass by to our southwest in the evening but the atmosphere will
be very dry. With clear skies we are looking at lows in the
middle 50s.

Thursday... Forecast confidence high.

Surface high pressure will move into ontario pushing another weak
front southward across the state. Winds will become northeast during
the afternoon. Flow off the lake may bring some clouds into the
east, knocking temperatures down a few degrees during the afternoon.

The NAM and GFS are showing some precip with the front while a
strong shortwave will also be moving through. Soundings show
moisture is pretty shallow so will keep a dry forecast.

Long term...

Thursday night through Saturday... Forecast confidence high...

skies will clear later Thursday night as high pressure is
reinforced across the great lakes. This should set the stage for a
cool morning on Friday, with lows in the low 50s. Highs Friday
will top out in the low to mid 70s. Nearly identical conditions
are expected for Saturday, as the surface high remains centered
just north of lake superior.

Sunday through mid week next week... Forecast confidence

winds will become more southeasterly on Sunday, with moisture
very slowly returning to the area. Sunday should still be dry,
with highs just a touch warmer in the upper 70s to around 80. An
approaching shortwave from the west will attempt to phase with a
wave moving through the ohio valley, and this may bring a few
showers to the area as early as Sunday night. It's very possible
that dry low levels win out, however.

The high will shift fully east of the area for Monday, with south
to southwest flow expected at the surface, and west-southwest flow
aloft. There should be several chances for showers and
thunderstorms Monday and Tuesday, with rain potential continuing
into Wednesday as another cold front approaches from the west.

Aviation(9z tafs)...

expect some fog this morning. A cold front will move through this
morning bringing north winds. Scattered to broken clouds around 2500-
4000ft will accompany the front this morning. There may be a few
gusts of 15 to 20 mph during the afternoon. Skies will clear later
this afternoon. Light northeast winds will prevail on Thursday. MVFR
ceilings may move in from the lake on Thursday.


a cold front will move down the lake this morning, reaching the
southern part by late morning. North winds will gust 15 to 20 knots.

There will be a brief lull in winds Wednesday evening before north
winds will gust 10 to 20 knots late Wednesday night into Thursday.

Northeast winds are expected Thursday night and Friday.

Mkx watches warnings advisories
Wi... None.

Lm... None.

Update... Ddv
today tonight and aviation marine... Marquardt
Thursday through Tuesday... Boxell

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Baraboo Wisconsin Dells Airport, WI13 mi71 minNW 510.00 miPartly Cloudy76°F59°F57%1015.6 hPa

Link to 5 minute data for KDLL

Wind History from DLL (wind in knots)
Last 24hrS4SE8SW10SW5W3SW3Calm----CalmCalm--Calm--CalmW4--NW5NW7N5N3W6W10
1 day agoSW5SW4SW3CalmCalmCalmCalm--------CalmCalm--CalmCalmCalmSE3CalmCalmCalmCalmN5W4
2 days agoW8

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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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.
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Wind Forecast for Milwaukee/Sullivan, WI (16,3,4,5)
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Ground Weather Radar Station Milwaukee, WI
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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 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 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.