Wednesday, November14, 2018 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 7:09AMSunset 4:36PM Wednesday November 14, 2018 2:32 PM CST (20:32 UTC) Moonrise 12:59PMMoonset 10:39PM Illumination 42% Phase: First Quarter Moon; Moon at 7 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 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 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-


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 141952
afddlh
area forecast discussion
national weather service duluth mn
152 pm cst Wed nov 14 2018

Short term (this evening through Thursday)
issued at 140 pm cst Wed nov 14 2018
a deepening area of low pressure will cross to the north of lake
superior - this will increase winds this evening and also bring a
threat for snow and possibly patchy freezing rain at precipitation
onset Thursday. QPF amounts are light with only a tad more than a
tenth of an inch of liquid equivalent expected which translates to
an inch or two of snowfall across northern mn. NW wi doesn't see
as much qpf, so snowfall amounts are only a 1 2 an inch there. In
the wake of this low, lake effect snow is likely over NW wi.

Added a marine section to the afd to highlight gales.

Long term (Thursday night through Wednesday)
issued at 140 pm cst Wed nov 14 2018
lake effect snow along the south shore of lake superior will be
the main forecast parameter to begin the long term. Northwest
winds will spark lake effect snow showers as they bring cold air
across the warm, big lake. However, the pressure gradient only
warrants a short period of these showers as the flow is quite
progressive.

High pressure builds for Saturday and most of Sunday. A weak
trough of low pressure accompanying an upper level wave slides
through on Sunday night into Monday - again low qpf, but this will
bring a burst of cold air with lows dipping into the single digits
above below zero. Another clipper system mid week. Overall, a
fairly quiet forecast in terms of large systems.

Aviation (for the 18z tafs through 18z Thursday afternoon)
issued at 1145 am cst Wed nov 14 2018
departing high pressure will keepVFR conditions in place to start
the period. As the next system begins to push in later this
afternoon and evening, a low-level jet will set up across the
terminals. This will lead to a period of low-level wind shear
lasting from late this afternoon into the early morning hours.

However, this is expected to linger at khyr into the mid-morning
hours on Thursday. More in the way of clouds are expected to
arrive overnight as well, bringing MVFR ceilings to kinl and khib
after sunrise Thursday. A few light snow showers will also be
possible at kinl with these ceilings, but they are not currently
expected to lead to any visibility restrictions through the end of
the period.

Marine
Issued at 140 pm cst Wed nov 14 2018
a gale warning is in effect for portions of the near shore waters.

A strengthening low north of lake superior will drop pressures
this evening causing a surge in wind speeds across lake superior.

This should be enough of a gradient to boost wind gusts into
gales and rapidly increase wave heights tonight into Thursday
morning. A little unsure on how long the gales will last as flow
turns more southwesterly and weakens as the low moves further to
the northeast.

Preliminary point temps pops
Dlh 23 37 27 31 0 20 50 10
inl 24 34 24 26 10 60 60 20
brd 23 39 27 31 0 20 20 10
hyr 22 38 28 33 0 10 30 10
asx 23 39 29 34 0 10 50 20

Dlh watches warnings advisories
Wi... None.

Mn... None.

Ls... Gale warning from 6 pm this evening to 6 am cst Thursday for
lsz121-140-141-146>148.

Small craft advisory from 6 pm this evening to noon cst Thursday
for lsz144-145.

Small craft advisory from 6 pm this evening to 4 pm cst Thursday
for lsz142-143.

Small craft advisory until 6 pm cst this evening for lsz121-140-
141-148.

Short term... Wolfe
long term... Wolfe
aviation... Bjh
marine... Wolfe


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
DULM5 - 9099064 - Duluth, MN 6 mi32 min NNE 5.1 G 8.9 33°F 47°F1025.3 hPa (-3.2)23°F
PKBW3 7 mi92 min NNE 4.1 30°F 19°F

Wind History for Duluth, MN
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Duluth - Sky Harbor Airport, MN2 mi36 minN 310.00 miFair34°F23°F65%1025.4 hPa
Richard I. Bong Airport, WI5 mi37 minN 010.00 miFair34°F20°F59%1025.4 hPa
Duluth International Airport, MN13 mi37 minS 810.00 miFair31°F19°F61%1026.5 hPa

Wind History from DYT (wind in knots)
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Last 24hrSW13
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SW11W10W9W6S6S6SW8SW5S5SW5SW4CalmSW5SW3S3S6S5S3CalmNE3N3NE5N6
1 day agoW14W15W12NW10W13
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NW13W8W9W9W9NW16NW13W8W8SW7SW7SW7W8W7SW8SW9W10
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2 days agoW9W10NW9W12NW11W10W10W11W9W11W9W11W12W14
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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    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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Wind Forecast for Duluth, MN (15,3,4,5)
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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.