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Marine Weather and Tides
Version 3.4 |
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen |
| Sunrise 6:16AM | Sunset 8:19PM | Saturday August 17, 2019 11:51 AM CDT (16:51 UTC) | Moonrise 8:41PM | Moonset 7:10AM | Illumination 96% |  |
7 Day Forecast for Marine Location Near Shorewood, MN
Hourly EDIT Helplocation: 44.94, -93.55 debug
Area Discussion for - Twin Cities, MN
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus63 kmpx 171514 afdmpx area forecast discussion national weather service twin cities chanhassen mn 1014 am cdt Sat aug 17 2019 Update Issued at 1014 am cdt Sat aug 17 2019 main change we've been making to the forecast for tonight is to slow some the arrival of higher pops out west this evening, but then once things get here, we've really sped up the eastward progression of pops tonight into Sunday morning. As this system takes on a negative tilt and we start entraining some dry air in from the west, we should really see storms accelerate across our area overnight. Main change we've seen with the 12z guidance coming in is that they are generating less convection to our south tonight. This will allow for better storm coverage up here. Current SPC day 1 convective outlook still looks good. Given instability and mid-level lapse rates, some large hail is possible, but given the expected forward speed of the line along with the development of strong cold pools, strong winds look to be our biggest severe threat. Short term (today through Sunday) issued at 325 am cdt Sat aug 17 2019 the main concern in the short term is the chance for severe thunderstorms tonight, the threat for which has increased particularly across southern and western minnesota. Strong downburst winds, large hail, and even isolated tornadoes will be possible. As of early this morning, a large trough was moving slowly east across the western half of canada and is expected to deepen as the day progresses. We'll spend the day in the warm sector well to the east of the cold front that currently extends from manitoba southward into north dakota. While this is the main feature of concern, a shortwave trough will develop and intensify later this afternoon to the south of the main upper trough. This feature will move nearly due east to the north of the south dakota nebraska border, and reach southwest mn this evening. So, two features to keep our eyes on today and tonight as they approach, with the southern shortwave arriving a few hours ahead of the main cold front. The models are in good agreement that the main upper low to the north will include an intensifying embedded shortwave rotating through north dakota toward mn tonight, leading to the entire system becoming negatively tilted and stronger than previously expected. SPC increased the threat to a slight risk across much of southern mn and an enhanced risk across southwest mn. Temperatures will rise into the 80s and dew points will generally be in the lower 60s locally. Southerly winds will increase this afternoon ahead of the aforementioned cold front. This will lead to MLCAPE values generally between 1500-2000 j kg and combined with deep layer shear around 35-40 knots, strong and severe thunderstorms are possible. The initial shortwave may set off scattered thunderstorms across the southern third of mn by evening. Meanwhile, storms should fire along the cold front across the dakotas this afternoon, likely growing upscale into line segments. Strong cold pool development along these line segments looks more likely, which would lead to an increased wind threat as the line segments move from west to east across southern mn, including the metro, late tonight and through the overnight hours. Once the cold front exits to the east mainly by tomorrow mid morning, a few scattered showers may linger for a few hours, but overall a drying and clearing trend is expected. Highs on Sunday |
will be a little cooler behind the front, with mid to upper 70s expected and dewpoints falling into the 50s for most by late afternoon. Long term (Sunday night through Friday) issued at 325 am cdt Sat aug 17 2019 overall the long term period will be fairly quiet. Monday night still is our best chance at thunderstorms in this period, but there is quite a bit of uncertainty at play. By Sunday night, the main upper low will have moved east toward hudson bay with the negative tilt to the south now extending southeast toward the eastern great lakes. The upper low will become quasi-stationary to begin next week over hudson bay with deep zonal flow expected locally. This means temperatures will rebound and should have no problem reaching the low to mid 80s Monday and Tuesday. A subtle shortwave is still expected to develop to our west as a ridge becomes more defined over the high plains. The path and strength of this shortwave is still uncertain, so continued with a blended approach for pops which yields about a 30% chance for storms Monday night. An upper ridge will develop across western canada in response to another strong upper low approaching the western canadian coast by Tuesday. The hudson bay upper low will dive southeast and send yet another cold front south through the northern plains Tuesday night, leading to a slight cool down for Wednesday and Thursday as canadian high pressure settles in. Temperatures and dew points look to be on the rise again though on Friday as the upper ridge to our west begins encroaching on the local area as main upper low continues pushing east. Aviation (for the 12z tafs through 12z Sunday morning) issued at 645 am cdt Sat aug 17 2019 vfr conditions today with southerly winds. Confidence has increased in the potential for a line of storms moving through overnight. The main threat with these storms would be strong winds, so have introduced higher gusts in the prob30 group. A cold front will follow the storms and bring northwest winds along with MVFR ifr clouds. Kmsp... vfr conditions today with southerly winds. Confidence has increased in the potential for a line of storms moving through overnight. As of now it appears that the storms will move in after 06z. The main threat with these storms would be strong winds, so have introduced higher gusts in the prob30 group. A cold front will follow the storms and bring northwest winds along with MVFR clouds. Outlook for kmsp sun...VFR with MVFR possible early. Wind NW 5-10 kts. Mon...VFR. Slight chc -tsra MVFR late. Wind S 10-15 kts. Tue...VFR. Slight chc -tsra MVFR early. Wind S 5 kts. Mpx watches warnings advisories Wi... None. Mn... None. Update... Mpg short term... Spd long term... Spd aviation... Jrb |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a mapAirport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Minneapolis - Flying Cloud Airport, MN | 8 mi | 2 hrs | SW 5 | 10.00 mi | Fair | 71°F | 61°F | 71% | 1010.5 hPa |
| Minneapolis, Crystal Airport, MN | 13 mi | 2 hrs | S 11 G 17 | 10.00 mi | Partly Cloudy | 74°F | 57°F | 57% | 1009.9 hPa |
| Minneapolis, Minneapolis-St. Paul International Airport, MN | 18 mi | 2 hrs | SW 10 | 10.00 mi | Partly Cloudy | 74°F | 59°F | 60% | 1010.5 hPa |
| South St. Paul Municipal-Richard E. Flemi, MN | 22 mi | 76 min | S 5 | 10.00 mi | Fair | 74°F | 58°F | 60% | 1011.2 hPa |
| Buffalo, Buffalo Municipal Airport, MN | 22 mi | 77 min | no data | 10.00 mi | Fair | 73°F | 59°F | 63% | 1011.2 hPa |
| Minneapolis / Blaine, MN | 23 mi | 3.1 hrs | S 6 | 10.00 mi | A Few Clouds | 72°F | 60°F | 69% | 1011.2 hPa |
Link to 5 minute data for KFCM
Wind History from FCM (wind in knots)
| 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | |
| Last 24hr | W | NW | W G14 | W | W | SW | SW | SW | SW | SW | S | S | SW | S | SW | S | ||||||||
| 1 day ago | S | W | SW | S | S | S | S | S | S | S | S | SW | SW | W | W | |||||||||
| 2 days ago | N | E | Calm | E | NE | NE | NE | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | S |
Tide / Current Tables for
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Link to Loop
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Wind Forecast for Twin Cities, MN (12,3,4,5)
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Ground Weather Radar Station Minneapolis, 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. |