Sister Bay, WI Marine Weather and Tide Forecast
L-36.com
Top   Marine   7-Day   NWS   Buoy   Airport   Tide   Map   GEOS   Radar   TAF  

Marine Weather and Tide Forecast for Sister Bay, WI

June 15, 2024 4:39 AM CDT (09:39 UTC) Change Location
Sunrise 5:04 AM   Sunset 8:40 PM
Moonrise 2:16 PM   Moonset 1:28 AM 
  Print   HELP   Reset   Save   Recall  New
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
    EDIT      HIDE   Help
LMZ541 Rock Island Passage To Sturgeon Bay Wi- 326 Am Cdt Sat Jun 15 2024

.small craft advisory in effect from late tonight through late Sunday night - .

Early in the morning - E wind 5 to 10 kts. Mostly clear. Waves 2 ft or less.

Today - SE wind 5 to 10 kts. Partly cloudy. Waves 2 ft or less.

Tonight - SE wind 10 to 20 kts. Gusts to around 25 kts after midnight. A chance of rain showers. Waves 1 to 3 ft building to 3 to 5 ft early in the morning.

Sunday - S wind 15 to 25 kts with gusts to around 30 kts. Rain showers and a chance of Thunderstorms in the morning, then a chance of light showers and Thunderstorms in the afternoon. Waves 4 to 7 ft.

Sunday night - S wind 10 to 20 kts with gusts to around 25 kts veering sw 5 to 10 kts after midnight. A chance of light showers and Thunderstorms. Waves 4 to 7 ft subsiding to 3 to 5 ft after midnight.

LMZ500
No data


7 Day Forecast for Marine Location Near Sister Bay, WI
   Hourly   EDIT   Help   Map   HIDE
NEW! Add second zone forecast


Area Discussion for - Green Bay, WI
      HIDE   Help   
NOTE: mouseover dotted underlined text for definition
FXUS63 KGRB 150931 AFDGRB

Area Forecast Discussion National Weather Service Green Bay WI 431 AM CDT Sat Jun 15 2024

Forecast discussion for routine morning forecast issuance

KEY MESSAGES

- Well above average temperatures are expected from Sunday through Tuesday. Heat indices may surpass 90 degrees at times. The warmest temperatures and highest heat index values are expected across central into northeast Wisconsin.

- A round of showers and thunderstorms is expected to move across the area tonight through Sunday morning. Heavy rainfall is likely, especially west and north of the Fox Valley, where amounts over an inch are possible. High rainfall rates could result in localized street flooding and ponding of water on roads. Severe thunderstorms are not expected.

- Thunderstorms are possible Sunday afternoon and Sunday night.
Some of these storms could become severe with damaging winds and large hail, especially over north central Wisconsin Sunday night.

- Thunderstorms are possible at times next week. Due to the heat and humidity, some stronger storms and locally heavy rainfall may be possible at times from Monday through Wednesday. Confidence is low in the timing of any rounds of storms.

DISCUSSION
Issued at 430 AM CDT Sat Jun 15 2024

Short Term
Today
Tonight...and Sunday

The forecast area remained under the influence of a Canadian high pressure system, which was centered over eastern Ontario early this morning. Developing return flow and WAA over southern MN and northern IA was generating some showers, though much of this appeared to be virga or light sprinkles falling from a mid-level cloud deck.

Dry weather should prevail over most of the forecast area this morning, with a few sprinkles arriving in central WI toward midday. Increasing WAA and a weak short-wave trough should generate scattered showers across mainly C/NC WI this afternoon.
Despite increasing clouds, highs should still reach into the 70s, except upper 60s near Lake Michigan.

Precipitation chances ramp up tonight, especially overnight as a 45 to 55 kt low-level jet develops, a potent short-wave trough moves through, elevated instability arrives, and a warm front approaches the region. The strong dynamics, combined with PWATs increasing to 1.5-1.8 inches, supports a heavy rainfall threat, with amounts of an inch or more possible west and north of the Fox Valley. Several models show two main QPF maxes during the overnight period; one affecting NC WI, and another in central WI.
There is support for this, as NC WI will be under the influence of the RRQ of an upper level jet, while central WI will get the main surge of elevated instability. WPC has outlooked most of the forecast area in a Marginal risk of excessive rainfall, with parts of C/NC WI in a Slight risk. Suspect the main issue will be localized flooding of urban areas. The late arrival of elevated instability and widespread shower activity (leading to a lack of discrete cells) should preclude a significant threat of severe storms during the overnight period. Have raised min temps several degrees, as southeast winds will be ramping up through the night.
Lows should be in the upper 50s to middle 60s.

On Sunday, the main surge of showers and storms should depart from SW to NE during the 14z-18z period. Stabilization from the morning rainfall, plus lingering cloud cover, slight ridging aloft and an inversion/capping evident in the 850-800 mb layer, all suggest a relative lull in convective activity during the afternoon. However, with mid-level lapse rates increasing to 7.5-8 C/km and CAPE eventually building to 2000-3000 j/kg, I'm not brave enough to go with a dry forecast. Will keep slight chances over the southern part of the area, and chance pops across northern WI, where some models suggest the warm front will reside later in the day. Cannot rule out an isolated severe storm, but the best chance appears to be over north central WI Sunday night.
Highs should range from the lower 80s north to the middle 80s to around 90 south. Locations along the immediate Lake Michigan shoreline should remain in the 70s. South to southwest winds will gust to 25 to 30 mph, especially in C/EC WI.

Long Term...Sunday Night Through Friday

500mb ridge across the eastern United States with a trough across the Rockies will result in an active weather pattern for much of next week with periodic chances of thunderstorms. Heat and humidity will be the main story across much of the area early in the week, with Monday and Tuesday being the warmest days. A weak cold front will work across the area Wednesday, bringing temperatures closer but still slightly above normal for the end of the work week.

For Sunday night, the models are showing a weak disturbance at 500mb across the northwest half of the state that some of the models are depicting convection firing during the evening. Bufkit soundings indicated CAPE values of 3,000 to 4,000 J/KG and 0-6 km shear values around 25 kts to support strong or severe storms with large hail and damaging winds. The greatest risk of severe storms would be across north-central Wisconsin closer to the upper level feature. There is a second feature at 500mb that moves into western Wisconsin shortly after 12z on Monday that could bring stronger storms to our northern counties Monday morning. On Monday, it will very warm or hot depending on your location.
Temperatures across portions of central and northeast could climb into the lower 90s with heat index values as high as the middle 90s across east-central Wisconsin. With the active southwest flow pattern aloft and building ridge, much of the convection Monday night and Tuesday may remain west of the forecast area. With thunderstorm complexes to the west of the area during this time frame, it would not surprise me if a complex snuck into our northwest counties at some point. Also, several models are depicting diurnally drive convection Tuesday afternoon and evening. If storms do develop, there is plenty of CAPE to support strong or severe storms. Damaging winds would be the primary threat, but could not rule out some large hail despite the very warm temperatures at the surface.

On Wednesday, the models are depicting a weak cold front moving across the area which will bring continued chances of storms. Some of the storms could be strong or severe as well depending on how much sunshine we see before the storms arrive. The 00z ECMWF is indicating continued chances of showers and storms as a frontal boundary lingers across the area. Being this far out, there is always concern that one of the thunderstorm complexes could push the front south of the area to bring a break in the chances of rain. Will resolve these concerns over the next several days.
Temperatures will be well above normal early next week, then turn closer to normal but still above normal late in the week.

AVIATION
for 06Z TAF Issuance Issued at 1050 PM CDT Fri Jun 14 2024

VFR conditions are expected tonight int Saturday morning with only a few mid to high clouds drifting across the region. Some high-based showers or sprinkles will be possible Saturday afternoon, with the best chance of any measurable precip being north/west of the Fox Valley. Higher chances for widespread showers and a few storms arrives after sunset, especially across central and northern WI.
Then a period of showers with embedded storms is expected across the entire area after midnight. Heavy rain appears to be the greatest risk with these storms, with mainly MVFR and IFR conditions. Will hold off on thunder mention as threat will remain under 20% until after 06z Sunday.

GRB WATCHES/WARNINGS/ADVISORIES
None.




Weather Reporting Stations
   EDIT       HIDE   Help
Stations Dist Age Wind AirWater WavesinHgDewPt
NPDW3 - Northport Pier at Death's Door WI 10 mi99 minENE 2.9G5.1 60°F 30.15
CBRW3 - Chambers Island, WI 13 mi59 minE 2.9 53°F
MN4 - 9087088 - Menominee, MI 26 mi69 min0G0 66°F30.09
FPTM4 - Fairport, MI 38 mi59 minE 6G7 54°F
45002 - N MICHIGAN- Halfway between North Manitou and Washington Islands. 39 mi49 minE 5.8G5.8 56°F0 ft


Wind History for Menominee, MI
(wind in knots)    EDIT      HIDE   Help
toggle option: (graph/table)



Airport Reports
    EDIT      HIDE   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KMNM28 sm42 mincalm7 smClear52°F52°F100%30.14
Link to 1 hour of 5 minute data for KMNM
   
NEW Forecast page for KMNM


Wind History graph: MNM
(wind in knots)
toggle option: (graph/table)


Tide / Current for
   
EDIT   Weekend mode (on/off)   HIDE   Help

Tide / Current for
   EDIT      HIDE   Help

Weather Map
      HIDE   Help


GEOS Local Image of GreatLakes   
EDIT   HIDE



Green Bay, WI,




NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE