Marine Forecasts

    EDIT      (on/off)   Help

---

7 Day Forecast for Marine Location Near Milwaukee, WI

   Hourly   EDIT   Help

---

Area Discussion for - Milwaukee/Sullivan, WI

      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS63 KMKX 231120 AFDMKX

Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 520 AM CST Sun Feb 23 2020

UPDATE.

The forecast looks on track for today, so no changes are needed at this time.

AVIATION(12Z TAFS).

Not expecting fog to occur into this morning, except in localized low spots across the area. Southwest winds will linger today, with some gusts of 15 to 20 knots later this morning and afternoon, especially near Lake Michigan. Clear skies should linger for most of today.

Winds will become lighter tonight, as they veer west to northwest/north. Continued to mention some low clouds moving into the area this evening and overnight, though uncertain if this will occur. If they do not occur, some light fog may develop later tonight.

PREV DISCUSSION. (Issued 436 AM CST Sun Feb 23 2020)

SHORT TERM .

Today Through Monday . Forecast Confidence Is Medium.

Not expecting fog to occur into this morning, except in localized low spots. Clear skies should linger for most of today. Southwest winds may become somewhat gusty this afternoon, especially near the lake.

Warm air advection and a warmer start than yesterday should bring highs into the middle 40s to lower 50s over most of the area, highest in the far southeast. These values are approaching the 90th percentile, but confident these values will be reached given warmer start than yesterday.

Surface trough will move through the area later this afternoon and early this evening, with winds weakening as they shift northwest to north later tonight. Models continue to advertise low clouds developing over the area tonight and lingering into Monday.

However, models are keeping the best low level moisture north of the area tonight into Monday. Forecast soundings have been overdone with these low clouds the past day or two. Thus, uncertain if these low clouds will occur. If they don't, some light fog may develop with light winds and dew point depressions getting small. Temperatures may get lower than forecast as well.

Middle to high clouds should increase Monday, ahead of next system to affect the region. Kept highs in the middle to upper 30s, as winds shift northeast and gradually increase.

Monday night through Wednesday night . Forecast confidence medium.

A Winter Storm Watch may be needed in later forecasts for this period. The upper low over the desert southwest will eject newd, tracking from KS/OK Mon AM into the lower Great Lakes for Tue AM. This will be followed by another large upper low that will dig from the nrn Rockies into the central Great Plains for late Mon, then across nrn IL for Tue nt. Strong cyclogenesis will then occur late Wed into early Thu over the ern Great Lakes and adjacent Ontario. There are model differences with the location and timing of the cyclogenesis, but overall the upper air pattern will be favorable for at least a prolonged period of moderate snowfall. The snow should begin Mon nt-Tue AM from south to north across the area as the initial upper trough tracks toward MI. However, the heaviest period of snow should occur Tue aft-nt as a mid level TROWAL and associated frontogenesis and isentropic lift affects the area. This lift will be aided aloft by PVA and warm advection at the jet level. Another sigi factor will be lake enhanced snow given brisk nely winds and cooling temps aloft. The ensemble qpf has captured at least some of the LES potential, but will not get too involved with LES details at this time. Overall, the forecasted qpf ranges from 0.50 inches over central WI to near an inch at the IL border. There is an enhanced area of qpf for the lake counties via lake enhancement. Snow probs for 6 inches or more are high for much of srn WI. Blowing and drifting snow may also become an issue as temps cool Tue nt-Wed with brisk nely winds becoming nwly.

LONG TERM . Thursday through Saturday . Forecast confidence medium.

The large occluded low will remain over Quebec for Thu-Fr with a polar airmass to prevail over srn WI. Nly flow aloft will likely bring a few shortwave troughs through the area but the moisture is limited. A sfc ridge will move into WI on Sat.

AVIATION(09Z TAFS) .

Removed low level wind shear mention from TAFs, as west southwest winds at 2000 feet AGL should continue to weaken into this morning. Not expecting fog to occur into this morning, except in localized low spots across the area.

Southwest winds will linger today, with some gusts of 15 to 20 knots later this morning and afternoon, especially near Lake Michigan. Clear skies should linger for most of today.

Winds will become lighter tonight, as they veer west to northwest/north. Continued to mention some low clouds moving into the area this evening and overnight, though uncertain if this will occur. If they do not occur, some light fog may develop later tonight.

MARINE .

Southwest winds will remain breezy today, especially over northern portions of Lake Michigan. Winds will remain below Small Craft Advisory levels. A surface trough will then move east across the lake this evening, shifting winds to the northwest to north later tonight, and weakening them into Monday morning.

Low pressure should move northeast from the southern Plains into central Indiana tonight into Tuesday. It should strengthen as it shifts into the northeastern part of the country later this week.

The low should bring a prolonged period of gusty northeast winds and building waves later Monday into the middle of next week. Winds should gradually shift north to northwest later in the week.

Gales may occur at times Tuesday afternoon into Wednesday over the open waters of Lake Michigan. A Small Craft Advisory will likely be needed for later Monday night into Thursday for the nearshore waters. Some freezing spray may occur later in the week.

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

Update . Wood Today/Tonight and Aviation/Marine . Wood Monday THROUGH Saturday . Gehring

---

Weather Reporting Stations

   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
MLWW3 - Milwaukee, WI	6 mi	26 min	SSW 8.9 G 11	35°F
PWAW3 - Port Washington, WI	23 mi	56 min	SW 6 G 9.9	33°F			1012.9 hPa
KNSW3 - Kenosha, WI	34 mi	36 min	SSW 8.9 G 12	35°F			1013.5 hPa (+0.0)

Wind History for Calumet Harbor, IL

(wind in knots)    EDIT      (on/off)   Help

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

6 AM

7 AM

Last 24hr

SW9 G15

SW8 G13

S11 G15

SW11 G17

S11 G16

S13 G18

SW12 G16

S14 G18

S11 G17

S11

S6 G11

S10 G13

S10 G13

S10 G16

S7 G11

S10 G14

S10 G13

S10 G15

S8 G14

S10 G14

S9 G14

S9 G13

S11 G14

S11 G14

1 day ago

SW5 G11

SW8 G12

SW7 G12

S11 G16

S13 G18

SW14 G17

S15

S15 G22

S12 G18

S12 G22

S13 G20

S12 G17

SW13 G19

SW11 G19

S12 G15

SW9 G18

SW7 G12

S10 G13

S8 G12

S11 G14

SW8 G12

SW9 G12

SW11 G15

SW8 G14

2 days ago

W3 G7

NW9 G13

NW9 G13

N9 G14

N13 G17

N11 G15

N10 G13

N10

N7 G10

N5

N3

W1

W4 G8

W4 G8

W4 G8

W4 G7

W3 G6

SW4

SW7

SW6

SW5 G10

SW6 G9

SW4 G8

SW5

---

Airport Reports

    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.

Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Milwaukee-Timmerman, WI	6 mi	41 min	SW 10	10.00 mi	Fair	32°F	23°F	69%	1012.2 hPa
Milwaukee, General Mitchell International Airport, WI	8 mi	44 min	SSW 5	10.00 mi	Fair	34°F	23°F	64%	1012.9 hPa
Waukesha County Airport, WI	13 mi	51 min	SW 8	10.00 mi	Clear	32°F	23°F	69%	1012.2 hPa
Racine, Batten International Airport, WI	22 mi	43 min	SW 8	10.00 mi	Fair	33°F	24°F	70%	1013.8 hPa

Link to 5 minute data for KMWC

Wind History from MWC (wind in knots)

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 PM

1 AM

2 AM

3 AM

4 AM

5 AM

6 AM

7 AM

Last 24hr

SW11

W14 G18

SW8

SW10

SW11

SW9 G16

SW14

SW9 G15

SW14

SW5

S6

S10

SW7

SW7

SW7 G16

SW10 G14

SW10 G17

SW11

SW10 G14

SW10

SW7

SW7

SW9

SW9

1 day ago

SW9

SW13 G18

SW9

SW15 G20

SW17 G23

SW16 G27

SW16 G24

SW18 G24

SW14 G25

SW13 G18

SW11

SW10 G18

SW14 G17

SW14 G21

SW16 G22

SW14 G19

SW13 G20

SW14

SW13 G18

SW13

W12

W12

SW10 G17

SW10

2 days ago

NW7

NW8

NW10

NW9

NW9

W7

W10

W9

W8

W6

SW5

SW5

SW6

SW6

SW7

W6

SW8

W5

W12

W7

W9

SW8

SW10

SW8

---

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

---

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 (8,2,3,4)

      (on/off)   Help

---

Ground Weather Radar Station Milwaukee, WI

   (on/off)   Help

---

Cookie Policy: This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. 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. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. 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 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.