Thursday, February20, 2020
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Marine Weather and Tides
Cudahy, WI

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 6:40AMSunset 5:30PM Thursday February 20, 2020 4:16 AM CST (10:16 UTC) Moonrise 6:15AMMoonset 3:33PM Illumination 11% Phase: Waning Crescent; Moon at 26 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 Am Cst Thu Feb 20 2020
Early this morning..Northwest wind 10 to 15 knots. Clear. Waves 1 to 2 feet.
Today..Northwest wind 10 to 15 knots backing west late in the afternoon. Sunny. Waves 1 to 2 feet.
Tonight..West wind 10 to 15 knots rising to 15 to 20 knots early in the morning. Clear. Waves around 1 foot.
Friday..West wind 15 to 20 knots backing southwest late in the morning, then becoming southwest 15 to 20 knots early in the afternoon becoming 10 to 20 knots late in the afternoon. Gusts up to 25 knots. Sunny. Waves 1 to 2 feet building to 2 to 4 feet late in the afternoon.
Friday night..Southwest wind 10 to 20 knots becoming 15 to 20 knots after midnight. Gusts up to 25 knots. Clear. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. Wave heights are for ice free areas.
LMZ645 Expires:202002202200;;815907 FZUS53 KMKX 200906 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 306 AM CST Thu Feb 20 2020 For waters within five nautical miles of shore on Lake Michigan LMZ645-202200-


7 Day Forecast for Marine Location Near Cudahy, WI
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location: 43, -87.66     debug


Area Discussion for - Milwaukee/Sullivan, WI
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FXUS63 KMKX 200836 AFDMKX

Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 235 AM CST THU FEB 20 2020

SHORT TERM.

TODAY THROUGH FRIDAY - Forecast Confidence . High.

With very strong high pressure centered just to the west and clear skies across southern Wisconsin temperatures will be fairly chilly, especially early this morning. Temperatures this morning will be in the negative single digits across much of the area with wind chills in the negative teens. Temperatures will not warm up too much during the day today either despite clear skies.

Tonight temperatures will not likely fall as much with temperatures reaching the low to mid single digits as the strong high pressure weakens somewhat as it pushes to the south. This will increase the pressure gradient across the region with winds strengthening from the southwest into the day Friday. This will also rapidly increase temperatures to the 30s Friday.

FRIDAY NIGHT AND SATURDAY - Forecast Confidence . High.

Southwest breezes will diminish Friday night due to upstream weak troffing across the northern Plains weakening the pressure gradient across the western Great Lakes. Milder air however will remain in place with 925H temps in the 0 to 3C range. With sunshine and dry southwest winds, daytime temps should rise into the upper 30s to mid 40s across southern WI on Saturday. Melting of snow will be in full force during the day, especially in southeast CWA, where snowfield is around or less than 3" across most of the area.

LONG TERM.

SATURDAY NIGHT THROUGH WEDNESDAY - Forecast Confidence . Low to Medium.

Zonal steering flow at the onset of this period will ensure milder air remains in place through the later half of the weekend. Daytime temps should easily rise into the 40s. However need to be careful of potential fog development Sunday morning due to melting snow adding moisture to low levels and diminishing low level winds. Any fog that develops should be shallow and burn off, so wl continue optimistic temp forecast for Sunday. Mid-high level clouds may spread across the area as southern Plains low pressure takes a turn to the northeast.

Cutoff low pressure in the southwest early in the period will get nudged eastward into the central/southern Plains by Sunday night. Extended guidance in reasonable agreement on this scenario, with upstream short-wave beginning to carve out trof in northern stream. However same Extended guidance having issues resolving timing and track of Plains low pressure as it moves to the northeast early next week. Both 00Z GFS and ECMWF slow down northeastward progress of low, but some GEFS ensembles continue to bring QPF into southern WI Sunday night. Considerable dry air in place across the Great Lakes ahead of this system, which will also slow down northward progress of precipitation. Never the less, with upstream amplifying trof, would think this system would take a more northeast track and return precipitation to southern WI in the Monday/Monday night time frame. For now, worthwhile to continue chance pops for much of the period, even into Wednesday, due to potential lingering low pressure trof in the area. Confidence higher on colder temperatures returning in the wake of this system due to long-wave trof amplification across the central CONUS.

AVIATION(09Z TAF UPDATE).

VFR conditions through the TAF period with clear skies and mostly light winds. Winds will pick up from the southwest into Friday, however.

MARINE.

Conditions remain quiet over the lake today and tonight with strong high pressure dominating the region. Into Friday, however, the high will push to the south bringing a stronger pressure gradient across the lake. This will likely bring gale force gusts across the northern half of the lake by Friday afternoon and extending southward across a majority of the lake by Friday evening. Thus a Gale Watch remains in effect for the northern half but has been extended to the southern half of the lake as well from 18z Friday to 6z Saturday. A Small Craft Advisory will also likely be needed for a period as well.

Overnight Friday, winds will decrease to below gales but will remain modest and predominantly from the southwest through Sunday prior to another system pushing east to the south of the lake. Winds are not expected to be a concern through at least early next week.

MKX WATCHES/WARNINGS/ADVISORIES.

WI . None. LM . Gale Watch from Friday afternoon through Friday evening for LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779- 868-870-872-874-876-878.

TODAY THROUGH FRIDAY/AVIATION/MARINE . ARK FRIDAY NIGHT THROUGH WEDNESDAY . mbK


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MLWW3 - Milwaukee, WI 12 mi27 min NW 8 G 12 8°F
KNSW3 - Kenosha, WI 29 mi17 min NW 12 G 16 7°F 1036.9 hPa (-0.4)
PWAW3 - Port Washington, WI 29 mi37 min WNW 9.9 G 13 4°F 1038.6 hPa

Wind History for Holland, MI
(wind in knots)    EDIT      (on/off)   Help
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Last
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NW14
G20
NW14
G18
NW13
G16
NW14
NW13
G17
NW14
G17
NW14
G17
NW15
NW16
W15
G19
NW14
G18
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G19
NW15
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G17
NW11
G15
NW13
G17
NW16
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G20
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G17
NE7
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1 day
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W19
G26
W24
G30
W23
G29
W24
G29
NW26
NW24
G30
W21
G26
NW18
G23
NW19
NW17
G21
NW17
NW15
G19
NW16
W13
G17
W15
G19
W15
G20
W20
W21
NW20
NW24
G31
NW17
G23
NW22
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NW18
G24
2 days
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E12
G16
E13
G17
E13
G19
E19
G23
E18
G24
E18
G25
E15
G21
E12
G21
E14
G20
E8
G16
E12
G19
E10
G16
E11
G16
E11
G15
E17
G22
E18
G24
E21
G28
E13
G21
E13
G19
SE10
G15
SE11
G14
S13
G19
S15
SW17

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Milwaukee, General Mitchell International Airport, WI13 mi25 minNW 810.00 miFair7°F-7°F52%1038.6 hPa
Racine, Batten International Airport, WI18 mi24 minNW 410.00 miFair7°F-6°F55%1039 hPa
Milwaukee-Timmerman, WI22 mi22 minNW 610.00 miFair3°F-9°F55%1037.6 hPa

Link to 5 minute data for KMKE

Wind History from MKE (wind in knots)
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Last 24hrNW7NW7NW8NW8NW9NW10W7NW10W10
G16
NW12
G17
W12W9NW9NW7W7NW7NW6NW8NW11NW10NW10NW8NW8NW8
1 day agoW12
G25
W19
G27
W18
G29
NW17
G29
W21
G31
NW20
G30
W16
G28
NW16
G24
NW16
G24
W16
G23
W14
G23
W12W11
G22
W9W10W10W10
G20
NW13
G22
NW12
G22
NW11
G21
N11NW7NW7NW7
2 days agoSE9E13SE17
G22
SE10SE11SE13SE13SE12SE14SE12SE13SE13E11E13E13SE12SE13--S9S7SW8SW10W14
G24
W15
G27

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Milwaukee/Sullivan, WI (5,6,7,8)
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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 numerous 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.