Friday, August23, 2019 L-36.com


Marine Weather and Tides
St. Francis, WI

Version 3.4
NOTICE
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 6:04AMSunset 7:43PM Friday August 23, 2019 3:16 PM CDT (20:16 UTC) Moonrise 11:57PMMoonset 1:54PM Illumination 42% Phase: Third Quarter Moon; Moon at 23 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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LMZ645 North Point Light To Wind Point Wi- 306 Pm Cdt Fri Aug 23 2019
Through early evening..Northeast wind 10 to 15 knots. Sunny. Waves 1 to 3 feet.
Tonight..Northeast wind 10 to 15 knots veering east early in the morning. Clear. Waves 1 to 3 feet building to 2 to 4 feet in the late evening and overnight.
Saturday..Southeast wind 10 to 15 knots backing east late in the afternoon. Sunny. Waves 2 to 4 feet.
Saturday night..East wind 10 to 15 knots veering southeast early in the morning. Mostly clear. Waves 1 to 3 feet building to 2 to 4 feet early in the morning.
Sunday..Southeast wind 10 to 15 knots rising to 15 to 20 knots early in the afternoon, then easing to 10 to 15 knots late in the afternoon. Sunny. Waves 2 to 4 feet.
LMZ645 Expires:201908240900;;098389 FZUS53 KMKX 232006 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 306 PM CDT Fri Aug 23 2019 For waters within five nautical miles of shore on Lake Michigan LMZ645-240900-


7 Day Forecast for Marine Location Near St. Francis, WI
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location: 43.01, -87.88     debug


Area Discussion for - Milwaukee/Sullivan, WI
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Fxus63 kmkx 231724
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
1224 pm cdt Fri aug 23 2019

Update
No adjustments to the going forecast with broad ridging over the
region. Main focus is on cloud cover as the fair weather cumulus
near lake michigan has become a bit more widespread than indicated
in the short term guidance, likely due to some extra moisture
coming off of lake michigan. Cloud cover will quickly dissipate
going into the evening hours on into Saturday as the ridge of high
pressure drifts southeast across the great lakes.

Aviation(18z tafs)
Vfr conditions are expected through Saturday as a ridge of high
pressure moves across the great lakes region. A CU field has
developed across southern wisconsin with and has generally been in
the 3kft to 5kft range and a little more widespread closer to lake
michigan. Expect that this CU field will dissipate going into the
evening hours. Could see some valley fog in the wisconsin river
basin overnight, but the air overhead looked pretty dry. Winds
will generally go from the ene to the ese into tomorrow as the
ridge moves through.

Prev discussion (issued 918 am cdt Fri aug 23 2019)
update...

temperatures starting a couple of degrees below where we were
yesterday at this time (lower 60s). The mid-level clouds out there
now will clear by later this afternoon and highs warm into the low
to mid 70s. One interesting feature is over the lake where
convergence in the wind field is evident in the cloud structure.

Visible imagery would suggest some slightly deeper development
along the convergence axis. While a few returns were showing up on
radar, there is enough dry air present that only a stray sprinkle
or virga are expected.

Marine...

high pressure to the north will keep winds out of the N ne. Some
stronger winds are possible over the lake with gusts to 20 knots
possible at times. This will allow for some building of waves
across the far southern portions of the lake where waves could
increase to 3 to 5 feet. Winds and waves begin to relax tonight
into Saturday.

Prev discussion... (issued 639 am cdt Fri aug 23 2019)
update...

clouds continue to linger this morning and have updated sky cover
to reflect this. Otherwise, the forecast looks on track for the
upcoming day.

Aviation(12z tafs)...

other than some patchy fog given enough clearing tonight,VFR
conditions are expected to continue over the next 24 hours. Clouds
in the 5-8 kft range continue to linger and may persist into the
day today. Even if these wipe this morning, late morning and
afternoon cumulus clouds are expected, mainly away from lake
michigan.

Prev discussion... (issued 238 am cdt Fri aug 23 2019)
short term...

today through Saturday... Forecast confidence is high:
high pressure will bring continued quiet weather to southern
wisconsin through Saturday. Stubborn 5-7 kft clouds continue to
hang around and may persist into the day today. If anything, there
should be enough moisture for decent afternoon cumulus coverage
today and again Saturday. There will be less clouds toward lake
michigan under onshore flow.

Temps through Saturday should be within a couple degrees of what
was observed over the last day. Highs will remain a tad below
normal for late august.

Given light winds at night under the high and enough clearing,
there could be some fog in the typical susceptible locations,
though primarily within the wisconsin river valley.

Long term...

Sunday through Monday night... Forecast confidence high...

dry weather will continue through at least the daytime hours on
Sunday, as high pressure pushes into northern new england.

Temperatures should be in the mid to perhaps upper 70s.

Rain thunderstorm chances start to increase late Sunday night, and
especially into Monday, as two shortwaves approach from the west
and southwest. There continues to be some significant differences
within the guidance as to if and where the two waves phase, with
the GFS favoring a slightly earlier onset to precipitation.

Monday and Monday night should be most active for shower and
thunderstorm activity, before a cold front moves through the
region early Tuesday.

Tuesday through next Friday... Forecast confidence moderate to
high...

fairly breezy west winds are expected for Tuesday and Wednesday,
with the region situated between strong low pressure across
northern ontario, and a large surface high over the southern
plains. We'll likely be on the southern periphery of the shower
activity associated with the upper low, so low pops seem
reasonable for this time period.

Another front is expected to swing through the area late in the
workweek, with canadian high pressure building south as we head
into labor day weekend. This should set the stage for temperatures
a few degrees below average as we finish out the month of august.

Aviation(09z tafs)...

other than some patchy fog given enough clearing later tonight,
vfr conditions are expected to continue over the next 24 hours.

Clouds in the 5-7 kft range continue to linger and may persist
into the day today. Even if these wipe this morning, late morning
and afternoon cumulus clouds are expected, mainly away from lake
michigan.

Marine...

high pressure centered just north of lake superior early this
morning will slowly slide eastward into the weekend, reaching
maine by Sunday morning. North to northeast winds today will
become easterly Saturday, with a southeast component by Sunday as
the high moves on. Winds will be breezy at times through Sunday.

Southeast winds will pick up Monday between an approaching low and
the departing high. Winds and waves may reach small craft advisory
levels.

Mkx watches warnings advisories
Wi... None.

Lm... None.

Update... Halbach
today tonight and aviation marine... Ddv
Saturday through Thursday... Boxell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
45013 6 mi46 min NE 12 G 16 67°F 70°F3 ft1024 hPa
PWAW3 - Port Washington, WI 26 mi36 min ENE 9.9 G 13 69°F 1025.1 hPa
KNSW3 - Kenosha, WI 29 mi16 min NE 12 G 15 67°F 1023 hPa (-0.7)
45187 36 mi16 min NE 9.7 G 14 72°F 73°F2 ft
45186 45 mi16 min NNE 9.7 G 16 69°F 73°F3 ft

Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Milwaukee, General Mitchell International Airport, WI4 mi2.4 hrsENE 12 G 1810.00 miMostly Cloudy72°F55°F57%1023.9 hPa
Milwaukee-Timmerman, WI12 mi91 minENE 810.00 miMostly Cloudy70°F48°F46%1024.4 hPa
Waukesha County Airport, WI17 mi91 minE 710.00 miMostly Cloudy70°F53°F57%1024.4 hPa
Racine, Batten International Airport, WI18 mi83 minNE 1110.00 miPartly Cloudy73°F55°F55%1024.3 hPa

Link to 5 minute data for KMKE

Wind History from MKE (wind in knots)
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Last 24hrE9NE10
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NE10NE11NE10NE9NE8NE7NE8NE7NE6NE5NE6NE5NE8NE9NE10E9E6E8E10NE12NE12
G18
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1 day agoNW11
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NW12NW8NW9NW9NE5N8NW3NW6N6N8N9N8NW5NE6NE8NE8E10NE11NE10NE10
G17
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2 days agoS8S6S8SE5W7W5W3W3SW5SW6SW4SW5CalmW4W7W4W5NW6NW5NW55W12W12
G18
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G20

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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wmap_A
GOES Local Image of GreatLakes    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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Milwaukee/Sullivan, WI (16,3,4,5)
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Ground Weather Radar Station Milwaukee, WI
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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.