Wednesday, August12, 2020
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Marine Weather and Tides
Abrams, 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 5:50AMSunset 8:03PM Wednesday August 12, 2020 7:02 PM CDT (00:02 UTC) Moonrise 12:00AMMoonset 2:48PM Illumination 34% Phase: Waning Crescent; Moon at 24 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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LMZ522 Expires:202008130600;;353503 Fzus53 Kgrb 122120 Nshgrb Nearshore Marine Forecast National Weather Service Green Bay Wi 420 Pm Cdt Wed Aug 12 2020 For Waters Within Five Nautical Miles Of Shore On Lake Michigan Lmz521-522-541>543-130600- Green Bay South Of Line From Cedar River To Rock Island Passage And North Of A Line From Oconto Wi To Little Sturgeon Bay Wi- Green Bay South Of Line From Oconto Wi To Little Sturgeon Bay Wi- Rock Island Passage To Sturgeon Bay Wi- Sturgeon Bay To Two Rivers Wi-two Rivers To Sheboygan Wi- 420 Pm Cdt Wed Aug 12 2020
Tonight..S wind 5 to 10 kts backing se after midnight. Waves 2 ft or less. Mostly clear.
Thursday..E wind 5 to 10 kts. Waves 2 ft or less. Mostly Sunny.
Thursday night..E wind 5 to 10 kts veering se after midnight. Waves 2 ft or less. Mostly clear.
Friday..SE wind 5 to 10 kts. Waves 2 ft or less. Mostly Sunny.
LMZ522


7 Day Forecast for Marine Location Near Abrams, WI
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location: 44.75, -87.96     debug


Area Discussion for - Green Bay, WI
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FXUS63 KGRB 122315 AFDGRB

Area Forecast Discussion National Weather Service Green Bay WI 615 PM CDT Wed Aug 12 2020

Updated aviation portion for 00Z TAF issuance

SHORT TERM. Tonight and Thursday Issued at 245 PM CDT Wed Aug 12 2020

Convective activity associated with a weak upper trough should continue to dissipate as it moves into drier air across central and northcentral Wisconsin. It is possible that a brief shower could make it to Vilas county tonight, but think it should be dry. Increasing high clouds will keep low temperatues higher than the last couple days- close to seasonal normals.

Upper ridging moves into the region Thursday, with a weak surface high off to our east. This should result in mostly sunny skies and temperatures about five degrees above normal.

LONG TERM. Thursday Night Through Wednesday Issued at 245 PM CDT Wed Aug 12 2020

Forecast concerns mainly revolve around the thunderstorm potential on Friday night and Saturday when a cold front moves across the region. This cold front will mark a pattern change when a large trough will become established across the Great Lakes. No clear model preference, so will use a general model blend.

Thursday night through Friday night . A high pressure ridge axis will initially be centered across the region on Thursday night, but will gradually retreat to the northeast through Friday afternoon. Mid-level warm advection will be taking place on Thursday night, with some indications of convective clouds brushing across north- central WI. Both instability and moisture transport remains meager though, so will leave the forecast dry despite the GFS spitting out light qpf. A strong cold front will then move across the northern Mississippi Valley on Friday. Position of the front along with convective parameters suggest thunderstorm activity will remain well west of the region through 7 pm Friday. The remnants of this thunderstorm activity may approach north-central WI by late Friday night, but instability will likely have weakened significantly by this time. Highs on Friday will remain toasty in the middle 80s.

Rest of the forecast . The cold front will move across the region on Saturday. Still some timing differences, but potential exists for the front to impact the region near peak heating when instability could reach as high as 1000 to 1500 j/kg. Deep layer shear of 25-30 kts could generate a few strong storms if timing remains on track. Most of the storm activity will be exiting by early Saturday evening. A cooler and drier airmass will then gradually move into the region behind the cold front. Temps on Sunday will likely remain near 80 degrees, but then highs slowly fall into the upper 60s to middle 70s by Tuesday.

AVIATION. for 00Z TAF Issuance Issued at 615 PM CDT Wed Aug 12 2020

A few sprinkles or light showers are possible this evening across central and north- central WI as activity approaches from the west, but most of this should dry up before getting here. Did not mention -SHRA in any TAF sites as confidence and expected duration is low. Meanwhile, middle and high clouds will continue to advect into the area this evening and overnight, but VFR conditions should prevail with light winds out of the S/SE. Some uncertainty on how fast clouds clear out Thursday, but any ceilings will remain VFR.

GRB WATCHES/WARNINGS/ADVISORIES. NONE.

SHORT TERM . RDM LONG TERM . MPC AVIATION . KLJ


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
45014 11 mi92 min E 3.9 G 5.8 82°F 1016.6 hPa
MN4 - 9087088 - Menominee, MI 31 mi44 min SSE 6 G 7 76°F 72°F1017.9 hPa68°F
KWNW3 - 9087069- Kewaunee, WI 32 mi44 min S 9.9 G 11 67°F 1018.2 hPa
CBRW3 - Chambers Island, WI 44 mi22 min ESE 1.9 G 4.1 79°F

Wind History for Menominee, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Green Bay, Austin Straubel International Airport, WI21 mi69 minSW 510.00 miFair81°F62°F53%1018 hPa

Link to 5 minute data for KGRB

Wind History from GRB (wind in knots)
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Last 24hrSW4SW4CalmS3S3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS4Calm3CalmSW4CalmS4SW5S4
1 day agoN3N6NW7NW3W4CalmW4W3CalmW5W6W5W3W5W6W5W4W9W9W8SW6W8W4SW5
2 days agoS6S6SW6SW6S5S4SW5SW4S6S7SW5SW7SW6SW7SW6
G16
S14W9SW9W10W8S5W7NW6N6

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    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 Green Bay, WI (20,4,5,8)
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Ground Weather Radar Station Green Bay, WI
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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.