Tuesday, June2, 2020
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Marine Weather and Tides
Bozeman, MT

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 5:35AMSunset 9:08PM Monday June 1, 2020 10:44 PM MDT (04:44 UTC) Moonrise 3:11PMMoonset 2:32AM Illumination 84% Phase: Waxing Gibbous; Moon at 11 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 Bozeman, MT
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location: 45.71, -110.99     debug


Area Discussion for - Billings, MT
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FXUS65 KBYZ 020253 AFDBYZ

Area Forecast Discussion . Updated National Weather Service Billings MT 853 PM MDT Mon Jun 1 2020

UPDATE.

Evening showers and thunderstorms have cleared out a little quicker than expected, but another line of just some showers is just west of the area. This will continue to move east. Still have a chance across much of the area through this evening. The latest HREF that is just coming in does still have a hint at some stronger convection in Carter and Fallon counties after midnight, but has trended farther east with the strong convection. Will continue to monitor. Reimer

DISCUSSION.

Tonight through Wednesday Night .

Showers have been moving NE through ID into NW MT for much of the day. New convection was seen near Challis, ID moving NE. This convection will continue to develop due to jet energy and vorticity moving through the flow, and will move into the WNW zones by 23Z or 00Z. It will shift E tonight. RAP KLVM sounding showed limited CAPE and strong shear before CIN develops this evening. The sounding was inverted-V and supported a gusty wind threat. Elevated CAPE increases in the evening, which could support some hail if lift was strong enough. HREF updraft helicity tracks were weak, so would not expect any large hail. Lift moves E overnight and may trigger elevated convection in Fallon/N Carter Counties with HREF showing stronger convection there. KBHK sounding from the RAP did not show any CAPE/shear concerns. Flow becomes zonal Tuesday through Wednesday night with pieces of energy moving through the flow. Had PoPs over and near the mountains on Tue. and Tue. evening. Vorticity will bring a chance of precipitation to SE MT late Tue. night through Wednesday. Wednesday night will be mostly dry. Tuesday will have highs in the 70s again and temps will be in the 80s on Wednesday. Arthur

Thursday through Monday .

W flow on Thursday will give way to weak upper ridging on Friday. Will have chances for orographic precipitation on Thu. and energy in the flow will bring low chances to the E Thu. night. Energy will move into the area on the back side of the ridge ahead of a NE moving wave Fri. and Fri. night for low chances of convection. A low-level jet will set up Fri. night and Saturday, increasing precipitable waters to an inch or higher. Upper flow will be SW on Sat. on the front side of an upper low off the BC/Pacific NW coast, which is a severe weather pattern. High PWAT's also supported a flash flooding threat. Thus, chances for convection increase on Saturday. Models differed on the position of the upper low on Sunday and differed with how the system moves inland on Monday. Kept PoPs across the area with the highest PoPs W of KBIL. There was spread in the models regarding QPF amounts late in the week and spread in the temps. This made sense given the uncertainty with the system's position. Arthur will prevail at midweek limiting any precipitation to mainly the higher terrain, and keeping afternoon temperatures in the 80s. However, by late Friday the upper flow will back to the S/SW as troughiness moves into the Pacific NW and extends into the Great Basin. This will start to advect moisture and impulses into SW Montana and the high plains. So look for an increasing chance of thunderstorms Friday evening into the weekend. Details are murky this far out, but we would not be surprised to see at least an isolated threat of severe thunderstorms by next weekend for portions of the CWA. BT

AVIATION.

VFR conditions will prevail over the next 24 hours. A chance for showers and thunderstorms remains overnight mainly near KMLS and KBHK. Expect areas of mountain obscuration over the western mountains tonight. Reimer

PRELIMINARY POINT TEMP/POPS.

Tue Wed Thu Fri Sat Sun Mon ----------------------------------------------------------- BIL 056/077 056/084 055/079 054/085 062/086 057/077 052/071 42/W 10/B 11/B 11/B 13/T 43/T 44/T LVM 051/077 051/080 051/078 049/082 055/080 051/070 045/065 52/T 21/U 23/T 22/T 37/T 76/T 66/T HDN 056/077 055/084 053/079 053/087 062/089 057/080 052/074 32/W 00/U 11/B 11/B 14/T 53/T 44/T MLS 057/077 053/083 053/078 054/084 064/087 059/080 054/076 31/U 00/U 21/B 21/B 23/T 52/T 33/T 4BQ 055/076 052/082 053/079 053/084 062/087 056/081 053/077 20/U 01/U 10/B 21/B 13/T 42/T 32/T BHK 054/075 049/081 050/077 051/079 058/081 057/079 053/076 41/U 02/T 11/B 21/B 23/T 52/T 32/T SHR 054/074 052/082 052/079 052/087 061/086 054/080 050/075 12/T 20/U 11/B 11/B 23/T 33/T 33/T

BYZ WATCHES/WARNINGS/ADVISORIES. MT . None. WY . None.



weather.gov/billings


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bozeman, Gallatin Field, MT10 mi48 minNNW 510.00 miOvercast55°F53°F93%1017.8 hPa

Link to 5 minute data for KBZN

Wind History from BZN (wind in knots)
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Last 24hrW4CalmCalmW5CalmS5S8S5S4S5S3S4CalmE433NW5W9CalmNE4NW11NW9S5NW5
1 day agoSE21
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--SW14S10SW10NE6
2 days agoN6N5N9W5NW6CalmS5CalmNW4CalmN334N3CalmN36NE3SE12SE13SE19SE19
G28
SE17SE16

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 Billings, MT (0,6,7,8)
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Ground Weather Radar Station Billings, MT
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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.