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Marine Weather and Tides
Version 3.4 |
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 5:48AM | Sunset 8:06PM | Friday August 7, 2020 6:59 PM CDT (23:59 UTC) | Moonrise 10:25PM | Moonset 9:40AM | Illumination 84% |  |
LMZ644 Port Washington To North Point Light Wi- 506 Pm Cdt Fri Aug 7 2020
Tonight..South wind 10 to 15 knots easing to 5 to 10 knots late in the evening, then rising to 10 to 15 knots after midnight becoming south 10 to 15 knots early in the morning. Mostly clear. Waves 1 to 2 feet.
Saturday..South wind 10 to 15 knots becoming south 10 to 15 knots with gusts to around 20 knots late in the morning, then rising to 15 to 20 knots in the afternoon. Slight chance of showers and Thunderstorms in the afternoon. Waves 1 to 2 feet building to 3 to 4 feet in the afternoon.
Saturday night..South wind 10 to 15 knots easing to 5 to 10 knots late in the evening, then veering southwest after midnight becoming southwest 5 to 10 knots early in the morning. Slight chance of showers and Thunderstorms. Waves 3 to 4 feet subsiding to 1 to 2 feet after midnight.
Sunday..South wind 5 to 15 knots becoming 10 to 15 knots late in the morning, then becoming south 10 to 15 knots with gusts to around 20 knots in the afternoon. Slight chance of showers and Thunderstorms in the morning, then chance of showers and Thunderstorms in the afternoon. Waves 1 to 2 feet building to 2 to 4 feet late in the afternoon.
Tonight..South wind 10 to 15 knots easing to 5 to 10 knots late in the evening, then rising to 10 to 15 knots after midnight becoming south 10 to 15 knots early in the morning. Mostly clear. Waves 1 to 2 feet.
Saturday..South wind 10 to 15 knots becoming south 10 to 15 knots with gusts to around 20 knots late in the morning, then rising to 15 to 20 knots in the afternoon. Slight chance of showers and Thunderstorms in the afternoon. Waves 1 to 2 feet building to 3 to 4 feet in the afternoon.
Saturday night..South wind 10 to 15 knots easing to 5 to 10 knots late in the evening, then veering southwest after midnight becoming southwest 5 to 10 knots early in the morning. Slight chance of showers and Thunderstorms. Waves 3 to 4 feet subsiding to 1 to 2 feet after midnight.
Sunday..South wind 5 to 15 knots becoming 10 to 15 knots late in the morning, then becoming south 10 to 15 knots with gusts to around 20 knots in the afternoon. Slight chance of showers and Thunderstorms in the morning, then chance of showers and Thunderstorms in the afternoon. Waves 1 to 2 feet building to 2 to 4 feet late in the afternoon.
LMZ644 Expires:202008080400;;092569
FZUS53 KMKX 072206
NSHMKX
Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
506 PM CDT Fri Aug 7 2020
For waters within five nautical miles of shore on Lake Michigan
LMZ644-080400-
7 Day Forecast for Marine Location Near Butler, WI
Hourly EDIT Helplocation: 43.12, -88.04 debug
Area Discussion for - Milwaukee/Sullivan, WI
(on/off) Help NOTE: mouseover dotted underlined text for definitionFXUS63 KMKX 072103 AFDMKX
Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 403 PM CDT Fri Aug 7 2020
SHORT TERM. (Issued 402 PM CDT Fri Aug 7 2020)
Tonight through Sunday night:
Convection is firing along the nose of a low level jet and shortwave trough over eastern ND and northwest WI this afternoon. These should ride the ridge across northern WI and the U.P. of Michigan tonight and southern WI should remain dry. The main shortwave trough may phase with a weaker shortwave trough associated with another nose of a low level jetlet that could be tracking through IA/MO tonight. If the phasing occurs, it could bring just enough forcing to support scattered thunderstorms in southern WI late Saturday morning into the afternoon. Models are showing varying degrees of capping due to 850mb warm air advection, but instability is on the high side, with forecast CAPE over 2000 j/kg. Shear looks modest at 20 kt.
High temperatures on Saturday will be in the mid 80s. With dewpoints around 70, heat index values should top out in the upper 80s.
The low level jet and 850mb warm air advection will likely remain in the corridor from southern MN to central IA to western IL Saturday night and southern WI should remain dry. By Sunday afternoon, that warm air advection will slide through southern WI and we will see a small chance of storms with this feature. The main feature to watch for Sunday will be a cluster of thunderstorms that is expected to develop over SD Sunday morning and track across MN and then across central and mainly northern portions of southern WI Sunday night. This would be coincident with a little shortwave or remnant piece of energy from the Plains.
High temperatures on Sunday will be a little higher, topping out in the upper 80s. Max heat index values will be in the lower 90s due to dewpoints in the lower 70s.
We are not outlooked in any marginal or slight risk areas by SPC for Days 2 or 3 at this time due to large uncertainty and marginal severe parameters.
Cronce
LONG TERM. (Issued 402 PM CDT Fri Aug 7 2020)
Monday through Friday:
The main shortwave trough that is sitting over the Northern Plains and southern Canada will swing a surface trough and weak cold front through the Great Lakes on Monday. The wave weakens/lags a bit on the southern edge through southern WI. Thus we have a chance for thunderstorms along this front as it tracks through southern WI on Monday. There is a t least a small risk of severe thunderstorms due to high CAPE and modest shear along this front, but the best synoptic forcing looks like it misses southern WI.
Tuesday through Thursday should feature quiet weather across southern WI. Highs will be in the lower 80s with dewpoints in the 50s, so this will be a nice stretch of summer weather.
By Friday, the GFS tries to bring a round of storms into WI, but the ECMWF keeps us high and dry.
Cronce
AVIATION. (Issued 402 PM CDT Fri Aug 7 2020)
For the 21Z TAFs:
Today and most of tonight will continue to be quiet for aviation weather. There may be storms that track across MN tonight and into central WI Saturday morning. There is a possibility for few showers and thunderstorms to develop late Saturday morning into the afternoon across southern WI. There are increasing chances for thunderstorms as a cold front slowly sags through the region this weekend and into Monday.
Cronce
MARINE. (Issued 402 PM CDT Fri Aug 7 2020)
Increasing southerly winds will build high waves over the north half of the lake on Saturday. High waves are expected for the nearshore zone from Port Washington and north Saturday afternoon and evening. Thus, hazardous beach conditions will be possible as well. There are increasing chances for thunderstorms as a cold front slowly sags through the region this weekend and into Monday.
Cronce
BEACHES. (Issued 402 PM CDT Fri Aug 7 2020)
Gusty southerly winds will build high waves along the lakeshore from Port Washington and northward through the Sheboygan area on Saturday. A Beach Hazards Statement is in effect due to a high swim risk Saturday afternoon and evening.
Cronce
MKX WATCHES/WARNINGS/ADVISORIES. WI . Beach Hazards Statement . WIZ052-WIZ060 . 1 PM Saturday to midnight Sunday.
LM . Small Craft Advisory . LMZ643 . 1 PM Saturday to midnight Sunday.
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 |
| 45013 | 10 mi | 59 min | ESE 12 G 14 | 72°F | 72°F | 2 ft | 1020.2 hPa (-1.4) | |
| MLWW3 - Milwaukee, WI | 11 mi | 49 min | SE 11 G 12 | 73°F | ||||
| PWAW3 - Port Washington, WI | 21 mi | 79 min | SSE 11 G 14 | 73°F | 1021 hPa | |||
| KNSW3 - Kenosha, WI | 39 mi | 59 min | SE 9.9 G 11 | 76°F | 1019.3 hPa (-1.7) | |||
| 45187 | 46 mi | 39 min | SSE 7.8 G 9.7 | 74°F | 73°F | 1 ft | ||
| SGNW3 - Sheboygan, WI | 47 mi | 59 min | SSE 14 G 15 | 71°F |
Wind History for Kewaunee MET, WI
(wind in knots) EDIT (on/off) Help| 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 | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | |
| Last 24hr | SW G9 | SW G7 | SW G7 | W G6 | W | NW G4 | W | W | NW | W G7 | W G9 | -- | NW G4 | SW G9 | S | S | S | S | S | S G17 | S | S | S G18 | S |
| 1 day ago | S G15 | SW G11 | SW G12 | SW G11 | SW | SW G10 | SW G12 | W G8 | W G9 | SW G9 | W | W | NW G5 | W G8 | W | S G5 | S | S | S | S | S | S | S | S |
| 2 days ago | SE | S | W | NW | NW | NW | -- | NW | NW G5 | NW | W | W | W | W | NE | E G5 | SE | SE G8 | SE | S | S G16 | S | S | S |
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 | 1 mi | 74 min | ESE 6 | 10.00 mi | Clear | 77°F | 55°F | 47% | 1020 hPa |
| Waukesha County Airport, WI | 11 mi | 74 min | SE 6 | 10.00 mi | Clear | 77°F | 57°F | 51% | 1020.3 hPa |
| Milwaukee, General Mitchell International Airport, WI | 13 mi | 67 min | SE 9 | 10.00 mi | Mostly Cloudy | 76°F | 61°F | 60% | 1019.6 hPa |
| West Bend Municipal Airport, WI | 23 mi | 64 min | SE 6 | 10.00 mi | Fair | 75°F | 59°F | 57% | 1020 hPa |
Link to 5 minute data for KMWC
Wind History from MWC (wind in knots)
| 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 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 | |
| Last 24hr | E | Calm | E | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | SE | E | SE | E | E | SE G15 | E | SE G15 | SE | SE | SE |
| 1 day ago | SE | SE | SE | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | SE | E | E | E | SE | E | SE | E | E | SE | E |
| 2 days ago | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | SW | SW | W | Calm | SW | W | W | W | W G14 | W G10 | NW | N | E | SE | SE |
Tide / Current Tables for
EDIT Weekend mode (on/off) (on/off) HelpTide / Current Tables for
EDIT (on/off) HelpWeather Map
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GEOS Local Image of 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 (19,4,5,8)
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Ground Weather Radar Station Milwaukee, WI
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