Thursday, March21, 2019 L-36.com


Marine Weather and Tides
Superior, WI

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:07AMSunset 7:23PM Thursday March 21, 2019 4:51 PM CDT (21:51 UTC) Moonrise 7:20PMMoonset 6:53AM Illumination 99% Phase: Waning Gibbous; Moon at 16 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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LSZ145 Expires:201810032115;;190874 Fzus73 Kdlh 032048 Mwsdlh Marine Weather Statement National Weather Service Duluth Mn 348 Pm Cdt Wed Oct 3 2018 Lsz143>146-162-032115- 348 Pm Cdt Wed Oct 3 2018
.a Thunderstorm over western lake superior... The areas affected include... Duluth mn to port wing wi... Lake superior west of a line from saxon harbor wi to grand portage mn beyond 5nm... Port wing to sand island wi... Silver bay harbor to two harbors mn... Two harbors to duluth mn... At 348 pm cdt, doppler radar indicated a Thunderstorm, capable of producing winds to around 30 knots and frequent cloud to water lightning. This Thunderstorm was located near duluth lift bridge channel, moving east at 65 knots. Locations impacted include... French river, herbster, and barkers island. Precautionary/preparedness actions... Mariners can expect gusty winds to around 33 knots...locally higher waves...lightning strikes...and heavy downpours. Boaters should seek safe harbor immediately until this storm passes. && a tornado watch remains in effect until 1100 pm cdt for northwestern wisconsin...and the adjacent waters of lake superior. Lat...lon 4691 9192 4710 9132 4683 9115 4682 9119 4683 9121 4681 9127 4671 9205 4681 9210
LSZ145


7 Day Forecast for Marine Location Near Superior, WI
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location: 46.71, -92.01     debug


Area Discussion for - Duluth, MN
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Fxus63 kdlh 212047
afddlh
area forecast discussion
national weather service duluth mn
347 pm cdt Thu mar 21 2019

Short term (this evening through Friday)
issued at 345 pm cdt Thu mar 21 2019
quiet weather across the region today, with temperatures rising
into the mid 40s to even low 50s across much of the forecast area,
with plenty of sunshine and northwest winds. A front and fast
moving shortwave are working south across the area this afternoon,
which is going to produce some clouds and very small shower
chances to affect the arrowhead for mainly this evening, and
should also affect parts of NW wi later tonight. Behind this front
we will get a fresh shot of colder air aloft, with 850mb
temperatures changing from the zero to 3 below this afternoon to 2
to 8 below tomorrow afternoon. This is going to allow
temperatures to drop off into the 20s for most locations overnight,
with a few cold spots in the teens. Friday will also be cooler
than we have been so far today. Guidance keeps us in the 30s for
Friday, but with the full sunshine we should get a little warmer
than guidance, as is fairly typical for this time of year. Have
gone with some lower 40s for parts of the area, with middle and
upper 30s elsewhere.

Long term (Friday night through Thursday)
issued at 345 pm cdt Thu mar 21 2019
the period will begin warm, but cooler weather is expected early
next week before another surge of warm air in the middle of the
week. Overall, the weather looks like quiet through Wednesday.

The northland is poised for its first day of reaching 50 degrees. A
ridge of high pressure will be moving in from the southwest and not
only bringing sunny skies, but warm temperatures and dry air. While
the northland is still has a deep snow pack, this snow pack is
getting older, more primed, and dirtier, which means less energy is
sapped into heating and melting this snow pack. Plus, the push of
warmer air aloft will begin Friday night, giving a head start for
Saturday morning. The latest 12z guidance from the gfs, european,
canadian, and NAM models seem too cool. Favoring the warmer GFS mos,
so weighted the blend towards it. Keep in mind with the increasing
sun angle and length of day, we are going to start seeing a bigger
pine tree effect soon, where the low albedo of the dark pine trees
can help heat up the region. Anticipate highs around 50 or in the
low 50s.

A cold front will sag south through the northland Saturday night and
Sunday. It could bring a tad of freezing drizzle and drizzle,
primarily to northern minnesota. Temperatures will drop back to a
bit below normal going into Monday as high pressure builds into the
region.

Warmer air will move back into the region going through the middle
of the week. High temperatures might return to near 50 degrees by
Wednesday. A passing wave could bring light precipitation, rain or
snow, Tuesday night or early Wednesday.

Aviation (for the 18z tafs through 18z Friday afternoon)
issued at 1223 pm cdt Thu mar 21 2019
vfr conditions are expected at all TAF sites through the period.

Breezy northwest winds continue into tonight for all sites with
gusts around 20-25 mph. Winds begin to diminish overnight
becoming light and northerly.

Preliminary point temps pops
Dlh 23 39 21 51 0 0 0 0
inl 20 40 17 54 0 0 0 0
brd 23 43 18 55 0 0 0 0
hyr 24 39 14 52 0 0 0 0
asx 26 37 18 55 10 0 0 0

Dlh watches warnings advisories
Wi... None.

Mn... None.

Ls... None.

Short term... Le
long term... Grochocinski
aviation... Kc


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
DULM5 - 9099064 - Duluth, MN 6 mi40 min WNW 12 G 18 55°F 1011.7 hPa27°F
PKBW3 7 mi112 min W 5.1 52°F 1013 hPa (-1.0)29°F

Wind History for Duluth, MN
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Duluth - Sky Harbor Airport, MN2 mi57 minno data10.00 miFair52°F32°F47%1012.2 hPa
Richard I. Bong Airport, WI5 mi57 minNW 11 G 1610.00 miFair51°F28°F42%1012.2 hPa
Duluth International Airport, MN13 mi57 minNW 19 G 2310.00 miFair and Breezy51°F27°F39%1012.6 hPa

Wind History from DYT (wind in knots)
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Last 24hr------------------------------------------------
1 day ago------------------------------------------------
2 days ago------------------------------------------------

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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wmap_A
GOES Local Image of GreatLakes    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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Duluth, MN (17,4,5,8)
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Ground Weather Radar Station Duluth, MN
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Disclaimer:
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 numerious 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.