Monday, May10, 2021
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Marine Weather and Tides
Bozeman, MT

Version 3.4
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1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 5:56AMSunset 8:44PM Monday May 10, 2021 4:01 PM MDT (22:01 UTC) Moonrise 4:45AMMoonset 6:48PM Illumination 1% Phase: New Moon; Moon at 29 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 101904 AFDBYZ

Area Forecast Discussion National Weather Service Billings MT 104 PM MDT Mon May 10 2021

DISCUSSION. Rest of Today through Wednesday Night .

Given the upper low and coldest air aloft to our west/southwest, upslope easterly winds, and dry advection in our east (afternoon dew points in the 20s), focus of shower activity into the early evening will be over our western/southern parts, especially the mountains and foothills. There may be enough instability for a few lightning strikes, but overall shower coverage will be less than the past couple days. Showers will all but dissipate tonight. Drier air and less cloud cover will result in a chilly night with a frost or freeze possible for many locations. Patchy fog is also possible in our western zones.

More energy from Canada will drop into the cyclonic flow over our region on Tuesday. Thus, another good chance of showers (and a few weak t-storms) tomorrow afternoon, mainly for west and central parts of our forecast area. Temps on Tuesday should climb to the upper 50s to lower 60s, which is still a bit cooler than normal.

For Wednesday, 500mb heights will begin to rise as we transition out of cyclonic flow. This will lead to warmer temperatures with highs pushing well into the 60s. Progs suggest some instability and short wave energy may again produce some isolated to scattered showers and thunderstorms, mainly over the higher terrain. BT

Thursday through Monday .

The extended continues to show consistency in weak ridging to end the work week, then the ridging breaking down for the weekend. The details however still are murky. Thursday and Friday it still looks confident that some afternoon showers and thunderstorms are possible. There is still some hint at some higher instability working into the area with some moisture flowing in from the Central Plains. There still is not a strong signal for anything particularly organized with this activity. Going into the weekend, the models are all in agreement that a trough will move across the area disrupting the weak ridging. How much moisture will be present across the Northern Rockies remains the big question. The ensembles do not show much in the way of agreement in the precipitation as the wave comes through. Some members have amounts approaching an inch while other have nothing. Have kept slight chance to chance PoPs in through the weekend. Reimer

AVIATION.

In general, VFR conditions will prevail through the period. Scattered showers and a few weak thunderstorms can be expected for areas mainly west and south of KBIL this afternoon into the early evening. Local/brief MVFR is possible in these areas. Mountains will be occasionally obscured in show showers and low clouds. STP

PRELIMINARY POINT TEMP/POPS.

Tue Wed Thu Fri Sat Sun Mon ----------------------------------------------------------- BIL 035/061 039/067 045/071 048/067 046/069 048/069 045/072 13/T 22/W 02/T 13/T 35/T 44/T 32/W LVM 031/060 035/065 041/070 045/067 044/068 043/067 042/070 24/T 22/W 13/T 14/T 36/T 55/T 33/W HDN 033/064 038/067 042/071 046/069 045/071 047/071 044/072 02/T 22/W 02/T 13/T 24/W 44/W 33/W MLS 033/064 040/067 041/069 045/069 045/071 049/072 044/072 01/B 12/T 01/B 12/W 23/W 43/T 33/W 4BQ 036/061 039/064 041/069 045/067 045/070 049/071 045/069 01/B 12/T 01/B 11/B 23/W 43/T 33/W BHK 031/061 037/065 039/068 042/070 043/070 046/069 043/069 00/U 12/T 01/B 12/W 23/W 43/T 33/W SHR 030/059 035/062 039/067 043/067 042/069 045/068 041/069 24/T 23/T 02/T 23/T 24/T 44/T 43/W

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 mi65 minN 710.00 miMostly Cloudy52°F32°F47%1021.3 hPa

Link to 5 minute data for KBZN

Wind History from BZN (wind in knots)
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Last 24hrN4N8N5N6N12NE7SW6W5CalmNW5W3CalmNW5W3CalmN3CalmNW5NW5CalmCalmCalmN5N7
1 day agoNE7N9NW11W15
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NW9NW7NW8CalmCalmNE4E4SE4S4SE3SE4E3E5NW3Calm434N7N5
2 days agoW20
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