Sunday, March29, 2020
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Marine Weather and Tides
Landfall, MN

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:55AMSunset 7:37PM Sunday March 29, 2020 2:06 PM CDT (19:06 UTC) Moonrise 8:42AMMoonset 12:00AM Illumination 31% Phase: Waxing Crescent; Moon at 6 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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7 Day Forecast for Marine Location Near Landfall, MN
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location: 44.92, -93     debug


Area Discussion for - Twin Cities, MN
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FXUS63 KMPX 291736 AFDMPX

Area Forecast Discussion National Weather Service Twin Cities/Chanhassen MN 1236 PM CDT Sun Mar 29 2020

SHORT TERM. (Today through Monday) Issued at 412 AM CDT Sun Mar 29 2020

Bands of rain and snow continue to rotate around an upper low, which is crawling northeast across Dakota County early this morning during its occlusion process. Locally heavy snow continues within the most intense bands, but between them precip is generally turning back to drizzle or light rain. This is making accumulation a bit difficult in most areas and roads are wet or lightly slush covered. Reports of a few inches of snow have come in from the St. Cloud area, however, and more will come in later this morning. The upper low will begin accelerating to the east later this morning. The bands of precipitation will become increasingly disorganized with improving conditions from west to east this afternoon. An inch or less of additional snow is expected, and is most likely in a corridor from Mille Lacs Lake to St. Cloud and Litchfield. Clouds will clear western MN this afternoon and sunshine should allow temps to rebound to around 50 there, but 40s will prevail east where clouds will linger toward the evening.

Northwest winds will gust to 35 mph today, but as the system departs this evening and surface ridging builds in overnight, winds will diminish and become light and variable by Monday morning. Mostly clear skies overnight and heavy precipitation from this weekend should promote areas of fog/freezing fog after midnight.

The fog will burn off Monday morning and highs will return to the 50s area wide.

LONG TERM. (Monday night through Saturday) Issued at 412 AM CDT Sun Mar 29 2020

There is a lot of uncertainty and little continuity from forecast to forecast in the long term. A few systems have the potential to impact the Upper Midwest through next weekend, but temporal and spatial differences continue to result in numerous periods with low chance PoPs.

A trough over the northern Rockies and Pacific Northwest will be the main feature the active pattern focuses on. The first swinging through Tuesday night and early Wednesday is generally being handled well on all the operational guidance. Rain with this feature won't be heavy and up to 1/4 inch can be expected as it clips the CWA. Did raise PoPs to likely for this period.

The second system will be more potent with more moisture and dynamics to work with. Low pressure over southeast CO will advance eastward across the southern Plains and then north into the Upper Mississippi Valley Thursday into Friday. NBM is lagging behind the latest trend and PoPs remain only in the slight chance to low chance range for now, but if the trends amongst the guidance hold then expect PoPs to increase quite a bit in the next day or two.

The third system could impact the area next Sunday and Monday, but consistency with this is very low.

Temperatures have been increased a bit mid to late week with the region remaining to the east of the trough until at least Friday.

AVIATION. (For the 18Z TAFS through 18Z Monday afternoon) Issued at 1236 PM CDT Sun Mar 29 2020

Minimal changes needed to going TAFs to handle departure of MVFR cigs and -RA off to the east through this evening. More uncertainty with tonight. MN will see clear skies and light winds, so potential for fog. HREF certainly goes this route, but several of its members tend to be over zealous with creating fog. Forecast soundings show quite a bit of boundary layer drying occurring in the subsidence region behind the departing low, so for now, will hold off on bringing fog into any terminals, but it is something that will need to be watched.

KMSP . If we do see fog develop tonight, confidence is pretty high that it will be an issue in outlying areas, so MSP will be fine.

/OUTLOOK FOR KMSP/ Tue . VFR. Wind SE 5-10 kts. Wed . MVFR chc IFR -RA likely. Wind SSE 10 kts. Thu . MVFR/IFR cigs. Chc -RA. Wind SE 10-15 kts.

MPX WATCHES/WARNINGS/ADVISORIES. WI . None. MN . None.

SHORT TERM . BORGHOFF LONG TERM . BORGHOFF AVIATION . MPG


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Downtown Holman Field, MN3 mi74 minNNW 16 G 2610.00 miOvercast42°F36°F79%1005.9 hPa
South St. Paul Municipal-Richard E. Flemi, MN9 mi72 minNNW 14 G 247.00 miOvercast40°F36°F86%1005.4 hPa
Lake Elmo Airport, MN9 mi72 minNNW 15 G 2110.00 miOvercast39°F35°F87%1005.1 hPa
Minneapolis, Minneapolis-St. Paul International Airport, MN12 mi74 minNNW 15 G 2510.00 miOvercast41°F37°F86%1006.5 hPa
Minneapolis / Blaine, MN20 mi82 minNNW 18 G 2610.00 miLight Rain and Breezy39°F39°F100%1005.8 hPa
Minneapolis, Crystal Airport, MN23 mi74 minNNW 17 G 2510.00 miLight Rain40°F35°F83%1006.5 hPa
Minneapolis, Airlake Airport, MN23 mi72 minNW 17 G 237.00 miRain41°F39°F93%1005.8 hPa

Link to 5 minute data for KSTP

Wind History from STP (wind in knots)
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Last 24hrNE11NE8
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1 day ago3SE4E7E7SE7SE6E4NE3N4SE5NE4NE6E7E5NE4NE3NE6NE8NE12NE9NE10E13
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2 days agoCalmS4S4S3CalmS4SE4CalmCalmS4CalmNE3CalmCalmSE3S4S3S4SE4SE5E43SE4S3

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Twin Cities, MN (15,3,4,5)
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Ground Weather Radar Station Minneapolis, MN
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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 numerous 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.