Marine Weather and Tides
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.
|Sunrise 6:52AM||Sunset 6:46PM||Tuesday September 28, 2021 10:52 AM CDT (15:52 UTC)||Moonrise 10:08PM||Moonset 1:33PM||Illumination 53%|
7 Day Forecast for Marine Location Near New Lisbon, WIHourly EDIT Help
Area Discussion for - La Crosse, WI  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS63 KARX 281032 AFDARX
Area Forecast Discussion National Weather Service La Crosse WI 532 AM CDT Tue Sep 28 2021
SHORT TERM. (Today and tonight) Issued at 304 AM CDT Tue Sep 28 2021
An amplifying upper ridge over the nation's midsection will slowly slide eastward today with the accompanying surface high centered over the Upper Great Lakes. Light southeasterly return flow will develop this morning along with weak warm air advection. The core of cooler 850mb temperatures associated with the surface high will slowly retreat eastward so should be another warm day across the area, at least fairly similar to yesterday as 850mb temps climb to around 19C. Temperatures have been slightly overachieving lately in this pattern with sunny skies, so leaned toward warm end of guidance with highs in the 70s to lower 80s.
The upper ridge axis crosses the Upper Mississippi Valley tonight. Similar to early this morning, looks like winds just above the surface will remain breezy overnight, limiting overall potential for valley fog despite clear skies and light surface winds. Low temperatures will be a tad warmer, generally ranging from mid 40s to mid 50s.
LONG TERM. (Wednesday through Monday) Issued at 304 AM CDT Tue Sep 28 2021
Wednesday still looks to be the overall warmest day as 500mb heights jump above 5840m before the anomalous upper ridge begins to slowly depart. A deep longwave trough spanning the western CONUS will begin to fall apart as it crosses the Rockies heading into Thursday. This will lead to a slow breakdown of the ridge, especially as a pronounced shortwave lifts into our area toward Thursday afternoon. Limited moisture initially looks to keep the forecast area solidly dry now until this feature arrives, with PWATs slowly climbing above 1 inch west of the Mississippi River. Looks like a little instability comes into play, so a decent setup for showers and perhaps a few non-severe storms through Thursday night, mainly near and west of the river.
Upper flow pattern quickly turns messy and convoluted heading into the weekend as the upstream longwave trough falls apart, introducing a split flow regime with an unorganized conglomeration of shortwaves and cutoff lows. Definitely looking like a more unsettled pattern for the Upper Mississippi Valley, but a low- predictability pattern to say the least given little agreement among various models that far out. Blended approach is the way to go, and NBM yields several days of 20 to occasionally 40 percent rain chances for Friday through Monday. Temperatures look to slowly cool through the extended period with highs in the 70s through Saturday, dropping into the 60s early next week.
AVIATION. (For the 12Z TAFS through 12Z Wednesday morning) Issued at 532 AM CDT Tue Sep 28 2021
VFR conditions expected through the TAF period under high pressure with SE winds up to 10 kts. Confidence in fog impacting KLSE early this morning or early Wednesday is low with soundings showing 20-25 kt winds just above the surface during these times.
ARX WATCHES/WARNINGS/ADVISORIES. WI . None. MN . None. IA . None.
SHORT TERM . Kurz LONG TERM . Kurz AVIATION . JM
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|Volk / Camp Douglas, WI||11 mi||57 min||ESE 9||10.00 mi||Fair||57°F||55°F||94%||1017.7 hPa|
Link to 5 minute data for KVOK
Wind History from VOK (wind in knots)
|1 day ago||SW||SW||SW||SW|
|2 days ago||W||W|
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