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Marine Weather and Tides
Version 3.4 |
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome. 10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name. |
| Sunrise 5:51AM | Sunset 7:46PM | Friday April 26, 2019 1:02 AM CDT (06:02 UTC) | Moonrise 2:04AM | Moonset 11:38AM | Illumination 58% |  |
LMZ646 Wind Point Wi To Winthrop Harbor Il- 1106 Pm Cdt Thu Apr 25 2019
.small craft advisory in effect from 9 am cdt Friday through Friday evening...
Rest of tonight..North wind 15 to 20 knots easing to 10 to 15 knots early in the morning. Periods of showers after midnight, then scattered showers early in the morning. Waves 2 to 4 feet.
Friday..Northwest wind 10 to 15 knots rising to 15 to 20 knots with gusts to around 25 knots late in the morning, then becoming northwest 15 to 20 knots with gusts to around 25 knots in the afternoon. Sunny. Waves 1 to 3 feet building to 2 to 4 feet late in the afternoon.
Friday night..Northwest wind 10 to 20 knots becoming 10 to 15 knots late in the evening, then easing to 5 to 10 knots after midnight becoming northwest 5 to 10 knots early in the morning. Mostly clear. Waves around 1 foot.
Saturday..Northeast wind 5 to 10 knots veering east early in the afternoon, then rising to 10 to 20 knots late in the afternoon. Chance of snow in the morning. Chance of rain through the day. Snow in the afternoon. Waves 1 to 2 feet.
.small craft advisory in effect from 9 am cdt Friday through Friday evening...
Rest of tonight..North wind 15 to 20 knots easing to 10 to 15 knots early in the morning. Periods of showers after midnight, then scattered showers early in the morning. Waves 2 to 4 feet.
Friday..Northwest wind 10 to 15 knots rising to 15 to 20 knots with gusts to around 25 knots late in the morning, then becoming northwest 15 to 20 knots with gusts to around 25 knots in the afternoon. Sunny. Waves 1 to 3 feet building to 2 to 4 feet late in the afternoon.
Friday night..Northwest wind 10 to 20 knots becoming 10 to 15 knots late in the evening, then easing to 5 to 10 knots after midnight becoming northwest 5 to 10 knots early in the morning. Mostly clear. Waves around 1 foot.
Saturday..Northeast wind 5 to 10 knots veering east early in the afternoon, then rising to 10 to 20 knots late in the afternoon. Chance of snow in the morning. Chance of rain through the day. Snow in the afternoon. Waves 1 to 2 feet.
LMZ646 Expires:201904261000;;496162
FZUS53 KMKX 260406
NSHMKX
Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
1106 PM CDT Thu Apr 25 2019
For waters within five nautical miles of shore on Lake Michigan
LMZ646-261000-
7 Day Forecast for Marine Location Near Kenosha, WI
Hourly EDIT Helplocation: 42.58, -87.87 debug
Area Discussion for - Milwaukee/Sullivan, WI
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus63 kmkx 260536 aaa afdmkx area forecast discussion... Updated national weather service milwaukee sullivan wi 1236 am cdt Fri apr 26 2019 Update Skies are clearing quickly behind this precip across southern wi tonight. Wind are diminishing quickly as well. Winds aloft will be light over central wi for a short period of time and then will increase out of the northwest just off the surface late tonight. Areas of fog are developing in the area of light winds just west and northwest of madison, but this will dissipate as winds increase aloft. Aviation(06z tafs) Areas of fog are likely west of madison for the next couple of hours. Then expect the fog to clear and a brief period of low level wind shear late tonight as northwest winds increase just above the surface. Winds will become very gusty out of the northwest by mid morning and diminish later this evening. Accumulating snow is expected on Saturday. That should spread into madison by mid morning and milwaukee by late morning. The axis of heaviest snow looks like it will be along the i-94 corridor and highest snowfall rates should be in the afternoon hours, perhaps lingering into the early evening. Prev discussion (issued 944 pm cdt Thu apr 25 2019) update... Showers continue to progress steadily east. There has been some redevelopment on the back edge, so still thinking showers may linger in eastern areas a little longer, ending between midnight and 2 am or so. 00z NAM remains consistent in track of low pressure and low level temperature profile across southern wisconsin for Saturday. Initial light rain snow mix should change to mostly snow as stronger lift spreads in late morning and afternoon. Marine... Brief period of gusty north to northwest winds expected overnight, with a few gusts to 25 knots in the nearshore waters. Not expecting the gusty winds to last long enough to warrant a small craft advisory. Tightening pressure gradient associated with low pressure passing through the eastern great lakes will result in a more prolonged period of gusty northwest winds on Friday, into Friday night. Hence status quo on small craft advisory for the nearshore waters and gale watch for the north open waters on Friday. Prev discussion... (issued 644 pm cdt Thu apr 25 2019) update... Showers associated with sharpening mid-level trof spreading slowly east, should reach the milwaukee area in next 1-3 hours. Showers may slow down and persist a little longer over eastern areas as low pressure deepens to the southeast of wisconsin as it moves from southern in into the eastern great lakes overnight. Never the less, expect showers to end around or shortly after midnight in eastern areas. Outflow boundary from earlier convection has slowed its southeast progression so south to east winds will last a little longer in the milwaukee to kenosha area. Aviation(00z tafs)... Showers will spread east across the area this evening, tapering off from west to east. Showers may slow down in eastern areas this evening resulting in a period of lower MVFR ceilings for several hours. Also, a 1-3 hour period of gusty winds will accompany the showers, with gusts to 25 kts possible. Clearing skies are expected later tonight into early Friday. Prev discussion... (issued 349 pm cdt Thu apr 25 2019) discussion... this evening through Friday... Forecast confidence is high... cold front is pushing through this afternoon. A few isolated showers and storms have popped up along the front. Upper level divergence, vorticity, and frontogenesis will push through the area late this afternoon through the evening bringing the main rain focus behind the front. Upper level support will shift east of the area late tonight with drier air filtering in for Friday. The low level jet will increase throughout the day Friday and sunny skies will allow us to mix down northwesterly gusts up to 35 mph. Friday night through Saturday night... Forecast confidence is medium... |
winter strikes back, again!!! A strong low pressure system will move to our south Saturday morning into Saturday evening. Newest models suggest that southern wisconsin will see mostly snow from this system as 850mb and 925mb temperatures should remain below freezing throughout most of the CWA during the duration of the event. Surface temperatures will likely remain in the 30-35 degree range through the event, which should make for 3-7 inches of accumulation on grassy surfaces with a few inches of slushy type snow on roads. This event will consist of a strong upper level shortwave digging into the midwest with strong vorticity advection in association with a bit of a coupled jet situation, which generates strong omega values. In addition, there is ample moisture throughout the column with a fairly long period in the dendritic growth zone. The low and mid levels look very favorable as well with strong waa, strong frontogenesis and some low level jet influence. There is still some complications with the time of the day and the impact this may have on road conditions. However, given the likelihood for heavier snow bands, rates should overcome the these concerns for the majority of this event. In addition, given that this is a tightly wound thermodynamic system slight variations in the track can greatly impact where the most snow will fall, thus there is still some uncertainty in snow totals. Assuming this forecast holds together, we may need to issue a watch advisory for Saturday afternoon evening over the next 24 hours. Sunday through Thursday... Forecast confidence is medium... Sunday will be a return to dry weather but cold air behind the system and fresh snow on the ground have caused us to lower temperatures despite snow mostly melting Sunday. Active pattern for next week with fast mid level flow and quite a bit of uncertainty. Monday will see another system roll through the region. This is expected to be a warmer system at this time bringing rain to our CWA though things could change still with some potential for a cooler trend. Most of the QPF looks to remain to our south. Guidance after Monday becomes much more uncertain where potentially more rain arrives for Tuesday into Wednesday with another system possibly rolling through on Thursday. Aviation(21z tafs)... expect ceilings to gradually drop as rain approaches the area. A brief period of MVFR ceilings is expected with this rainfall. We are watching for a 1 to 3 hour period behind the front this afternoon for gusts up to 25 knots but confidence is low. There is also a slight chance for thunder with activity late this afternoon and evening but confidence was not high enough to include in tafs. Conditions will quickly return theVFR as rain ends with clear skies expected for Friday. Expect gusty northwest winds to build late Friday morning into the afternoon. Marine... showers and a few rumbles of thunder are expected this evening associated with a cold front. Gusty northwest winds will follow behind the front for a brief period before settling back down overnight. Northwest winds will pick back up in the morning across the region with gusts up to 25 knots in the nearshore, which has resulted in a small craft advisory from 9 am to 7 pm Friday. Winds will weaken overnight Friday. For the open waters have issued a gale watch for Friday afternoon and evening due to expected northwest gales in the far northern portion of the lake. The next concern will be Saturday when a strong low pressure system pushes through the region likely bring strong winds from the north on the backside of the system. This will likely bring gale force gusts to the southern half of the lake Saturday evening and overnight, thus a gale watch is likely for this period. In addition, a small craft advisory will also likely be needed for a period as well. Mkx watches warnings advisories Wi... None. Lm... Gale watch from this afternoon through this evening for lmz261- 362-364-366-563-565-567-868. Small craft advisory from 9 am this morning to 7 pm cdt this evening for lmz643>646. Update... Cronce tonight Saturday and aviation marine... mbk Saturday night through Friday... 99 |
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 |
| KNSW3 - Kenosha, WI | 3 mi | 62 min | N 23 G 28 | 50°F | 1006.8 hPa (-0.0) | |||
| 45187 | 8 mi | 22 min | N 16 G 21 | 46°F | 42°F | 3 ft | ||
| 45186 | 15 mi | 22 min | NNW 18 G 27 | 48°F | 45°F | 3 ft | ||
| WHRI2 - Waukegan Harbor, IL | 15 mi | 48 min | N 17 G 26 | 51°F | ||||
| MLWW3 - Milwaukee, WI | 32 mi | 22 min | 50°F | |||||
| 45174 | 33 mi | 22 min | NNW 18 G 23 | 46°F | 44°F | 5 ft | 1006.3 hPa | 46°F |
| FSTI2 | 43 mi | 122 min | NNW 48 | 50°F | ||||
| CHII2 - Chicago, IL | 49 mi | 32 min | NNW 29 G 32 | 49°F | 49°F |
Wind History for Calumet Harbor, IL
(wind in knots) EDIT (on/off) Help| 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 | 9 PM | 10 PM | 11 PM | 12 AM | |
| Last 24hr | E | NE | NE | NE | -- | NW | N | NE | E | NE | N | NE | N | NE G9 | N | NE | NE | NE | NE | N | NW | N | NW G23 | NW G24 |
| 1 day ago | -- | N | N | NE | E | NE G8 | NE | NE | NE | NE | NE | NE | NE | N | NE | N | NE | NE | E | E | E | E | -- | NW |
| 2 days ago | W G14 | N G19 | N G10 | N | N G13 | N G10 | N | N G10 | NE | NE | NE | E | E | SE G8 | E | E | SE | S | S | -- |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Kenosha, Kenosha Regional Airport, WI | 4 mi | 69 min | N 12 G 23 | 6.00 mi | Light Rain Fog/Mist | 51°F | 48°F | 92% | 1007.2 hPa |
| Chicago/Waukegan Regional Airport, IL | 11 mi | 67 min | N 9 G 22 | 8.00 mi | Light Rain | 51°F | 46°F | 86% | 1006.2 hPa |
| Racine, Batten International Airport, WI | 13 mi | 69 min | N 18 G 27 | 8.00 mi | Light Rain and Breezy | 50°F | 46°F | 89% | 1007.6 hPa |
| Burlington Municipal Airport, WI | 24 mi | 67 min | N 9 | 10.00 mi | Light Rain | 48°F | 46°F | 94% | 1007.8 hPa |
Wind History from ENW (wind in knots)
| 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 | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | |
| Last 24hr | Calm | NW | SW | Calm | Calm | Calm | Calm | S | Calm | E | SE | E | E | E | SE | N | N | N | N G19 | N G21 | N G23 | N G17 | ||
| 1 day ago | Calm | NE | E | E | E | E | SE | S | S | S | S | SE | SE | SE | S | S | SE | S | Calm | S | S | S | SW | |
| 2 days ago | W | W | NW | NW | NW G18 | NW | NW | NW | NW | N | W | N | E | E | E | E | SE | SE | SE | E | E | E |
Tide / Current Tables for
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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.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Milwaukee/Sullivan, WI (2,6,7,8)
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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 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. |