Marine Weather and Tides
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 5:59AM||Sunset 8:05PM||Saturday August 15, 2020 2:59 AM CDT (07:59 UTC)||Moonrise 12:56AM||Moonset 5:04PM||Illumination 13%|
7 Day Forecast for Marine Location Near Rib Lake, WIHourly EDIT Help
Area Discussion for - Green Bay, WI  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS63 KGRB 150328 AFDGRB
Area Forecast Discussion National Weather Service Green Bay WI 1028 PM CDT Fri Aug 14 2020
Updated aviation portion for 06Z TAF issuance
SHORT TERM. Tonight and Saturday Issued at 257 PM CDT Fri Aug 14 2020
The latest RAP analysis and satellite/radar imagery show low pressure over the eastern Dakotas and a cold front extending from the low southwest across the central Plains. Strong to severe convection continues ahead of the low over northern Minnesota, though has been weakening over the past few hours. A much more stable airmass prevails across the eastern half of Wisconsin, as evident by little in the way of cu formation. As the front slides across the region tonight, forecast concerns mainly revolve around thunderstorm potential.
Tonight . The cold front will continue to march east and move into central and north-central WI after midnight. Widespread thunderstorms are expected to develop along the front this afternoon before they push into western Wisconsin this evening. With diminishing instability and upper level forcing lifting off to the northeast, the short range models continue to show convection diminishing as it approaches north-central to central WI shortly after midnight. Still though, most unstable capes up to 1000 j/kg could lead to an isolated strong storm persisting into north-central WI. Probably the most significant threat would be heavy rainfall. Convection should continue to diminish along the front into northeast WI by 12z. A widespread low overcast deck will likely move into the area behind the front. Even though winds will shift to the northwest, the clouds should keep temps mild. Lows ranging from the upper 50s to middle 60s.
Saturday . The front will continue to move east over northeast Wisconsin in the morning before exiting by midday or early afternoon. Some guidance indicates that a few strong cells could develop late in the morning along the lakeshore areas before the front departs. Not sure if there will be enough time to destabilize in the morning, especially since cloud cover should be plentiful. Will show a slight uptick in precip chances, but the unfavorable timing will keep any severe threat as very low. With partial clearing in the afternoon, temps to warm into the middle 70s to near 80, which is about 5 degrees cooler than today.
LONG TERM. Saturday Night Through Friday Issued at 257 PM CDT Fri Aug 14 2020
Looks like a seasonable weather pattern setting up for next week with a western ridge and eastern trough producing a northwest upper flow across the Great Lakes. This should result in pleasant summer weather with a few days slightly cooler than normal and a couple days a little above normal by the end of next week.
There could be a shower or thunderstorm during the middle of the week as a shortwave moves through the upper flow. The models forecast the upper flow to flatten out towards the end of the work week, with a chance of showers or thunderstorms ahead of another cold front.
AVIATION. for 06Z TAF Issuance Issued at 1025 PM CDT Fri Aug 14 2020
A cold front continues to slowly approach from the west. The front will bring an increase and lowering of the clouds as is pushes into the area. Some convection will accompany the front into the area overnight, but it will be weakening. The likelihood of thunder occurring at the western TAF sites has increased, and timing is now clearer, so will include a TEMPO group for the thunder there. It looks less likely in the east, so will continue with just SHRA in the eastern TAF sites with the 06Z issuance.
GRB WATCHES/WARNINGS/ADVISORIES. NONE.
SHORT TERM . MPC LONG TERM . RDM AVIATION . Skowronski
Weather Reporting StationsEDIT (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|
|SXHW3 - Saxon Harbor, WI||96 mi||80 min||SSW 8.9 G 14||66°F||1010.2 hPa|
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Taylor County Airport, WI||15 mi||85 min||SSW 8||10.00 mi||Light Rain||62°F||61°F||98%||1013.5 hPa|
|Merrill, Merrill Municipal Airport, WI||19 mi||65 min||SSE 6||10.00 mi||Light Rain||64°F||63°F||97%||1012.5 hPa|
|Tomahawk Regional Airport, WI||22 mi||65 min||N 0||10.00 mi||Partly Cloudy||62°F||60°F||96%||1012.9 hPa|
Link to 5 minute data for KMDZ
Wind History from MDZ (wind in knots)
|1 day ago||Calm||SE||E||S||Calm||Calm||E||E||SE||SE||S||SE||SE||S||SE||SE||SE||SE||SE||SE||Calm||Calm||SE||SE|
|2 days ago||Calm||Calm||Calm||Calm||Calm||Calm||E||SE||S||S||S||SW||SW||S||Calm||SE||Calm||Calm||NW||W||SE||E||SE||Calm|
EDIT Weekend mode (on/off) (on/off)  Help
EDIT (on/off)  Help
Weather Map(on/off)  Help Weather Map
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 (3,6,7,8)(on/off)  Help
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