Tuesday, May23, 2017 L-36.com


Marine Weather and Tides
Duluth, MN

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 5:22AMSunset 8:48PM Tuesday May 23, 2017 3:47 AM CDT (08:47 UTC) Moonrise 3:26AMMoonset 5:04PM Illumination 6% Phase: Waning Crescent; Moon at 27 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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This is a Weather Statement Zone, please check the Date to see if it has expired
LSZ144 701 Pm Cdt Tue May 16 2017
.strong Thunderstorms over western lake superior... The areas affected include... Grand marais to taconite harbor mn... Grand portage to grand marais mn... Lake superior west of a line from saxon harbor wi to grand portage mn beyond 5nm... Silver bay harbor to two harbors mn... Taconite harbor to silver bay harbor mn... Two harbors to duluth mn... At 701 pm cdt...doppler radar indicated strong Thunderstorms...capable of producing winds to around 30 knots. These strong Thunderstorms were located along a line extending from 7 nm east of tofte safe harbor...to near larsmont...moving northeast at 45 knots. Locations impacted include... Beaver bay...mouth of the cross river...split rock bay...sugar loaf cove...tofte safe harbor...horseshoe bay and safe harbor...mouth of the poplar river...split rock lighthouse...twin points safe harbor... Tofte...and mouth of the little marais river. Precautionary/preparedness actions... Mariners can expect gusty winds to around 33 knots...locally higher waves...and lightning strikes. Boaters should seek safe harbor immediately until these storms pass. && lat...lon 4731 9052 4682 9186 4722 9138 4758 9088 4773 9054 4790 8987
This is a Weather Statement Zone, please check the Date to see if it has expired
LSZ144 Expires:201705170045;;732472 FZUS73 KDLH 170001 MWSDLH MARINE WEATHER STATEMENT NATIONAL WEATHER SERVICE DULUTH MN 701 PM CDT TUE MAY 16 2017 LSZ140>144-162-170045-

7 Day Forecast for Marine Location Near Duluth, MN
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location: 46.76, -92.09     debug


Area Discussion for - Duluth, MN
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Fxus63 kdlh 230540
afddlh
area forecast discussion
national weather service duluth mn
1240 am cdt Tue may 23 2017

Short term (this evening through Tuesday)
issued at 302 pm cdt Mon may 22 2017
the northland's cool and damp weather pattern will continue
through Tuesday. An area of low pressure over northeast ontario
will shift east into quebec tonight, while an upper-level low near
the minnesota/ontario border will drop south through minnesota
tonight. The cool and humid northerly flow, combined with the
upper low's cyclonic flow, could produce some light rain or
sprinkles ahead of and in the wake of the passing upper low
through Tuesday. Weak surface-based instability could develop
Tuesday afternoon from any heating from brief pockets of
sunshine, but the potential for instability looks too low to even
warrant placing isolated thunder in the forecast.

Tonight's cloud will prop up temperatures to the upper 30s and low
40s. Much of the region will be limited to highs in the low to
middle 50s Tuesday, about 10 to 15 degrees below seasonal normals.

Parts of northwest wisconsin and the borderland near and west of
international falls will reach the upper 50s.

Long term (Tuesday night through Monday)
issued at 302 pm cdt Mon may 22 2017
an upper level low closes off near the ia/il border by 12z
Wednesday. Pieces of embedded energy will rotate around the low
and bring some chances of showers Tuesday night. The showers will
end from northwest to southeast as the upper low moves farther
southeast and surface/upper level ridging begin to build across
the region. Forecast minimum temps for Tuesday night and Wednesday
night are warmer than previously expected and have removed the
frost potential. The aforementioned ridging will be nearby through
Thursday. The forecast area transitions to a wet pattern Thursday
night through Sunday. This is the result of the next closed upper
low moving from saskatchewan Thursday night to northwest ontario
Sunday. Short wave energy will drift around this low and across
the region during this time. There will be enough
instability/forcing/moisture to generate a few thunderstorms
Friday afternoon. MAX temps will be near normal to slightly above
during the long range.

Aviation (for the 06z tafs through 06z Tuesday night)
issued at 1240 am cdt Tue may 23 2017
areas of MVFR cig's and vsby's will become more widespread as the
night wears on. In fact, ceilings and visibilities should
gradually decrease overnight, resulting in MVFR to ifr cig's and
vsby's. Those conditions should then improve due to daytime
heating on Tuesday, with mainlyVFR conditions by midday. Spotty
rain showers will be found across the region throughout the period
with the best chance later tonight and on Tuesday.

Preliminary point temps/pops
Dlh 41 53 40 58 / 40 30 20 0
inl 44 57 35 68 / 40 50 0 0
brd 43 56 41 65 / 40 50 20 0
hyr 38 58 41 63 / 30 50 20 10
asx 40 54 39 56 / 20 30 20 10

Dlh watches/warnings/advisories
Wi... None.

Mn... None.

Ls... None.

Short term... Grochocinski
long term... Gsf
aviation... Melde/dap


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
DULM5 - 9099064 - Duluth, MN 1 mi48 min NE 2.9 G 4.1 50°F 44°F
PKBW3 7 mi108 min Calm 47°F 1011 hPa (+0.0)46°F
45027 - North of Duluth, MN 11 mi38 min E 1.9 G 1.9 46°F 38°F44°F
45028 - Western Lake Superior 14 mi38 min WNW 1.9 G 1.9 42°F 42°F42°F
PNGW3 - Port Wing, WI 37 mi68 min Calm G 1 45°F 1009.8 hPa
SLVM5 - Silver Bay, MN 56 mi47 min N 11 G 14 51°F 1009.5 hPa

Wind History for Duluth, MN
(wind in knots)    EDIT      (on/off)   Help
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SW7
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G16
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NE14
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G17
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G13
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W7
G10
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NE13
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G26
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G28
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G30
NE18
G25
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NE15
G21
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G25
NE17
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NE17
G27
NE15
G25
NE15
G25
NE16
G23
NE19
G26
NE16
G25

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Duluth - Sky Harbor Airport, MN4 mi54 minN 010.00 miOvercast48°F46°F94%1009.8 hPa
Duluth International Airport, MN7 mi53 minN 510.00 miOvercast47°F44°F90%1010.1 hPa
Cloquet Carlton County Airport, MN22 mi53 minNNW 310.00 miOvercast46°F42°F87%1009.5 hPa

Wind History from DYT (wind in knots)
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Last 24hrSW9SW8SW8SW10SW10SW10
G15
W13
G16
W11W13W11W10W8W6W8W11SW7SW5SW4N5CalmN4CalmCalmCalm
1 day agoNE20
G25
NE21
G26
NE17NE19NE17NE16NE14NE12NE14NE13NE11E7E3CalmCalmCalmSW5SW6W9W9SW7SW10SW10SW9
2 days agoNE13NE16NE17NE19
G23
NE19
G26
NE23
G29
NE24
G28
NE21NE23
G27
NE23
G28
NE23NE22
G27
NE25
G33
NE27
G36
NE24
G32
NE23
G29
NE21NE23
G29
NE24
G27
NE22
G26
NE20NE20
G25
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G24
NE20
G26

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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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of GreatLakes    EDIT
Geos

Wind Forecast for Duluth, MN (4,6,7,8)
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Ground Weather Radar Station Duluth, MN
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weather_mapweather_map weather_map

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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.