Marine Weather and Tides
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen
|Sunrise 6:04AM||Sunset 7:59PM||Tuesday August 20, 2019 8:01 PM CDT (01:01 UTC)||Moonrise 9:35PM||Moonset 9:58AM||Illumination 71%|
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 202339|
area forecast discussion
national weather service green bay wi
639 pm cdt Tue aug 20 2019
updated aviation portion for 00z TAF issuance
Short term Tonight and Wednesday
issued at 213 pm cdt Tue aug 20 2019
skies were mostly cloudy across the region this afternoon.
Temperatures were in the lower to middle 70s across central
and north-central wisconsin to around 80 across northeast
and east-central wisconsin.
For tonight, a cold front will drop south across the area.
This feature will bring a small chance of showers and
thunderstorms as it moves across the area. A few stronger
storms are possible late this afternoon and early this
evening across central and north-central wisconsin.
Shear values of 25 to 35 knots noted along with
cape values of 1,000 to 1,5000 j kg. Main risk would be
gusty winds and small hail. The chances of showers and
storms will end from northwest to southeast tonight, ending
across eastern wisconsin after midnight. Late tonight, there
may be a band of low clouds that drop south along with some
patchy fog north and west of the fox valley.
Any fog should burn off by mid-morning on Wednesday. Partly
cloudy skies will prevail with highs in the 70s. Dewpoint
readings will be in the 40s north and in the upper 40s to
middle 50s south tomorrow afternoon.
Long term Wednesday night through Tuesday
issued at 213 pm cdt Tue aug 20 2019
the long term period will be largely dominated by a passing upper
level ridge, and the next trough moving through by the end of the
Thursday, a fairly prominent upper level trough will pass over the
region, bringing rain and storms south of the area in the
afternoon and evening. The gfs ECMWF have begun to hint that a
few showers may be possible across east-central wi and the
southern fox valley in the afternoon, but with the lack of
moisture and instability, stuck with the drier guidance for this|
Thursday night, high pressure will dominate the region as the
upper level ridge moves in. Northerly flow will bring much colder
air into the region. Winds near calm by Friday morning could allow
the north-central cool spots to drop quickly before sunrise.
Therefore went with the coolest guidance for the area, and
temperatures in the middle 30s for the lows for the north.
High pressure will then dominate the region through Saturday
night, keeping the area dry. Return flow on the west side of the
high will gradually bring in warmer temperatures again on
The speed the ridge moves through will largely dictate how
quickly precipitation moves in Sunday into Monday. Currently, a
slowly deepening upper level trough is expected to develop and
move across minnesota Saturday night into Sunday morning. Guidance
then remains a bit unclear as to how quickly this feature will
bring pops into central wisconsin. Kept a few chances in by the
early portion of the day. A surface low is expected to develop
with the upper level feature and deepen on Sunday, before
progressing eastwards across the area by Sunday night. The low
then lingers on into Monday. This will be the best chance to see
storms develop in the extended period, but it's still too early to
determine any severe potential.
Temperatures will be below normal through Friday, then rise back
up to near normal by Monday and Tuesday.
Aviation For 00z TAF issuance
issued at 639 pm cdt Tue aug 20 2019
a cold front will move across the area tonight. It may be accompanied
by a few hours of MVFR cloudiness and possibly a light rain shower.
Vfr conditions are expected Wednesday and Wednesday night with mostly
clear skies and excellent visibility.
Grb watches warnings advisories
Short term... ..Eckberg
long term... ... Uhlmann
aviation... ... .Rdm
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||82 min||WNW 1.9 G 2.9||76°F||1012.2 hPa|
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Taylor County Airport, WI||15 mi||67 min||N 0||10.00 mi||Partly Cloudy||73°F||62°F||71%||1014.6 hPa|
|Merrill, Merrill Municipal Airport, WI||19 mi||67 min||W 4||10.00 mi||Fair||76°F||64°F||67%||1013.9 hPa|
|Tomahawk Regional Airport, WI||22 mi||67 min||W 4||10.00 mi||Fair||73°F||61°F||67%||1014.6 hPa|
Link to 5 minute data for KMDZ
Wind History from MDZ (wind in knots)
|1 day ago||W||NW||W||W||SW||Calm||Calm||S||Calm||Calm||Calm||Calm||Calm||Calm||SW||SW||W||W||SW||W||SW||W||W||SW|
|2 days ago||S||S||SE||SE||SE||S||S||SE||S||SE||SE||S||SW|
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Weather Map and Satellite Images(on/off)  HelpWeather Map
GOES 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 (21,6,7,8)(on/off)  Help
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