Friday, May24, 2019 L-36.com


Marine Weather and Tides
Two Harbors, MN

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 5:22AMSunset 8:48PM Friday May 24, 2019 8:29 AM CDT (13:29 UTC) Moonrise 12:10AMMoonset 9:25AM Illumination 70% Phase: Waning Gibbous; Moon at 20 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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LSZ144 Expires:201903271430;;416812 Fzus73 Kdlh 271356 Mwsdlh Marine Weather Statement National Weather Service Duluth Mn 856 Am Cdt Wed Mar 27 2019 Lsz143>146-162-271430- 856 Am Cdt Wed Mar 27 2019
.an area of Thunderstorms over the nearshore waters of 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 854 am cdt, doppler radar indicated an area of Thunderstorms, capable of producing winds to around 30 knots, small hail, and frequent cloud to water lightning. This area of Thunderstorms was located near larsmont, or 16 nm northeast of duluth lift bridge channel, moving northeast at 50 knots. Locations impacted include... Larsmont and french 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 this storm passes. && lat...lon 4688 9193 4710 9153 4688 9132 4673 9180
LSZ144


7 Day Forecast for Marine Location Near Two Harbors, MN
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location: 47.03, -91.67     debug


Area Discussion for - Duluth, MN
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Fxus63 kdlh 241143
afddlh
area forecast discussion
national weather service duluth mn
643 am cdt Fri may 24 2019

Short term (today through Saturday)
issued at 312 am cdt Fri may 24 2019
another round of rainfall is poised to move into the forecast area
this morning as a low pressure system that is developing over
southeast montana pushes a wave of warm air advection isentropic
lift across the area today. This band of rainfall will produce a
cool and rainy Friday, with highs only in the mid 40s to mid 50s
over far northern minnesota, approaching the upper 50s and low 60s
along the southern border of the forecast area and northwest
wisconsin. This is a fairly progressive wave, so do not expect
overly much rainfall, between a tenth and a half inch, similar to
the last event. There is some potential for thunder, mainly over
northwest wisconsin, as that is where we develop some afternoon
instability. The strongest storms may produce some gusty winds and
small hail, but do not expect any more than that. It is going to
bring some much needed rainfall to the borderlands, where it has
been very dry lately. The upper low moves from north dakota into
manitoba tonight, keeping chances of showers going over the
forecast area, with higher pops to the north closer to the track
of the upper level shortwave. These precipitation chances continue
into Saturday, though generally diminishing. Overnight lows
tonight will remain mild with the extra cloud cover, with lows in
the 40s to low 50s. Saturday will be warmer with highs in the 60s
to mid 70s.

Long term (Saturday night through Thursday)
issued at 312 am cdt Fri may 24 2019
a longwave upper trough over the western CONUS is still forecast to
move into the central CONUS and canada by Tuesday, then continue
slightly east of the northland Wednesday into Thursday. There will
be several chances for showers through the period with the best and
most organized occurring Monday into Monday night.

A weak area of high pressure will move through the region Saturday
night into Sunday with a cold front near the international border on
Sunday. Most of the region will be dry Saturday night and Sunday
with low chances for showers over our northwest CWA Sunday
afternoon. Highs will be in the upper sixties to lower seventies for
most areas.

An area of surface low pressure will be over the central southern
plains Monday with a shortwave moving northeast bringing a chance
for rain to the region, highest over the southern half of the
northland on Monday. Rainfall totals around an inch will be
possible, most likely over northwest wisconsin west into pine county
to the brainerd lakes region. Gusty winds off of lake superior will
also occur Monday keeping lakeside areas much cooler. The GFS and
canadian are more progressive moving a surface low east of the
region Monday night and Tuesday with mostly dry conditions occurring
then. The ECMWF also has the northland under confluence aloft where
the GFS phases the northern stream with the southern and has a
better chance for more rain into Tuesday night. The models have been
struggling some with the details and for now we have low chances for
showers Monday night into Wednesday across portions of the
northland.

Model difference are more pronounced mid to late week and there will
be periodic chances for more showers.

Aviation (for the 12z tafs through 12z Saturday morning)
issued at 640 am cdt Fri may 24 2019
an area of low pressure will move into eastern north dakota this
evening then lift into northwest ontario tonight. MVFR and ifr
ceilings were occurring over portions of the northland and will
expand and lower through the day. Showers will also move through
the region today but will decrease in coverage tonight for most
areas, lingering longest in far northern minnesota. Ceilings will
lift toVFR or become scattered in spots tonight, mainly across
far southern portions of the northland.

There may be a period of non-convective low level wind shear
tonight and later updates may add a mention.

Marine
Issued at 312 am cdt Fri may 24 2019
an area of surface low pressure over the northern plains this
morning will move into eastern north dakota this evening then lift
into northwest ontario tonight. Easterly winds will increase today
and may be strong enough to produce hazardous conditions for small
craft, mainly from near sand island to the twin PORTS and along
portions of the north shore. Small craft advisories may be needed
today for portions of those areas. The wind will decrease tonight
becoming west to southwest on Saturday, at or below 15 knots. The
next chance for stronger winds will occur later Sunday night into
Monday evening as another area of low pressure affects the region
bringing gusty easterly winds.

Preliminary point temps pops
Dlh 50 43 65 42 90 30 10 0
inl 52 46 60 40 100 60 20 10
brd 62 49 65 43 100 10 10 0
hyr 60 53 72 43 60 30 0 10
asx 57 49 71 43 70 30 10 0

Dlh watches warnings advisories
Wi... None.

Mn... None.

Ls... Small craft advisory from 10 am this morning to 7 pm cdt this
evening for lsz144-145.

Short term... Le
long term... Melde
aviation... Melde
marine... Melde


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
DULM5 - 9099064 - Duluth, MN 28 mi42 min NE 9.9 G 16 42°F 48°F1018.6 hPa40°F
PKBW3 35 mi150 min NNE 1.9 44°F 1020 hPa (-1.0)43°F

Wind History for Duluth, MN
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Two Harbors, MN4 mi35 minENE 80.25 miOvercast with Haze43°F37°F81%1019.3 hPa
Silver Bay, MN19 mi35 minENE 97.00 miLight Drizzle43°F39°F87%1020 hPa

Wind History from TWM (wind in knots)
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Last 24hrW5NW6W7W6W10
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NW4N9NW6N4CalmCalmCalmNE3NE6NE5NE4E6E8E8E6E10E8NE10
1 day agoNE19
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2 days agoNE7E9E11
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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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Duluth, MN (9,2,3,4)
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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.