Marine Weather and Tides
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 5:43AM||Sunset 9:15PM||Friday July 10, 2020 6:00 AM MDT (12:00 UTC)||Moonrise 11:36PM||Moonset 10:24AM||Illumination 75%|
7 Day Forecast for Marine Location Near Bozeman, MTHourly EDIT Help
Area Discussion for - Billings, MT  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS65 KBYZ 100946 AFDBYZ
Area Forecast Discussion National Weather Service Billings MT 346 AM MDT Fri Jul 10 2020
Today through Saturday Night .
One more round of thunderstorms this afternoon-early evening, then a break for the weekend.
A disturbance that has been moving across the forecast area early this morning will exit to the east around sunrise this morning. Could be a few residual showers/thunderstorms for Fallon and Carter counties.
As this system exits to the east the main trof begins to move into the area from the west. While there will be a chance for showers and isolated thunderstorms with this system and associated cold front for western and central areas late morning into early afternoon, the timing and strength of the northwest winds with it will keep chances low. Many model solutions keep any significant precipitation well to the north of the area until the front gets into a better moisture/CAPE situation over SE Montana late this afternoon. SPC has a slight risk of severe storms for Fallon and Carter counties and a marginal risk Powder River and Custer counties. Storms should exit the area into the Dakotas by around 7pm. Gusty northwest winds behind the cold front will gust 30 to 40 mph at times through early this evening.
Ridge builds into the area for Saturday, with sunny and dry conditions boosting temperatures into the upper 80s and early 90s. Chambers
Sunday through Friday .
Hot and dry conditions are expected for Sunday, with highs in the mif to upper 90s in most locations. Some locations may toy with the century mark on Sunday, especially in southeast MT. RH values will fall into the teens in most locations.
Upper level ridging will be in control over the region to start the day Sunday. Ridging will break down with the approach of an upper level trough, and southwest flow aloft will take over across the region by the afternoon. The trough will drag a cold front across the region, which will bring gusty winds to the area. Isolated thunderstorms are also possible, though moisture availability will be a bit of a question. Best thunder potential will be over the eastern counties, as there is better CAPE available. Fire concerns are a elevated, with thunder potential combining with dry and breezy conditions. We wil continue to watch this developing situation closely.
General troughiness will dominate the pattern through about Thursday, as the upper trough slowly shifts eastward across southern Canada. The best energy associated with this system, continues to stay well north of the CWA. Greatest impacts with this trough will be a return of seasonal type temperatures, and some potential for isolated afternoon/evening showers/thunderstorms. At this time, no severe weather is expected, but neither are any significant rain amounts. That said, a slight southward shift of this upper level low pressure system would change the story drastically.
Friday continues to look unsettled, with temperatures climbing back to around 90 with a brief period of shortwave ridging. Gilstad
Mainly VFR flight conditions will prevail today. thunderstorms over eastern routes will exit the region this morning. Localized MVFR to IFR conditions are possible with these storms.
A cold front will bring a shift to gusty northwest winds this afternoon/evening, with gusts of 25-35 kts expected. Showers and thunderstorms are expected with FROPA as well. There is a chance for strong to severe thunderstorms, mainly east of KMLS this afternoon/evening. Local MVFR to IFR is possible with storms. Gilstad
PRELIMINARY POINT TEMP/POPS.
Tdy Sat Sun Mon Tue Wed Thu ------------------------------------------------------- BIL 083 057/089 060/094 059/081 054/079 055/083 058/084 2/T 00/U 01/U 11/B 22/T 21/U 22/T LVM 082 050/088 055/088 050/078 047/077 047/080 051/083 2/T 00/U 01/N 11/B 22/T 21/U 22/T HDN 084 055/091 060/097 058/082 055/081 053/084 057/086 2/T 00/U 01/U 11/B 22/T 11/U 11/B MLS 085 055/086 061/096 060/081 055/079 053/083 058/085 4/T 00/U 01/U 21/B 33/T 21/U 21/B 4BQ 089 055/087 059/099 059/082 055/079 054/083 058/086 3/T 00/U 00/U 11/B 34/T 21/U 11/B BHK 085 053/083 056/093 057/080 051/078 052/082 055/084 7/T 30/U 00/U 31/B 33/T 21/U 21/B SHR 090 053/090 058/099 057/083 052/081 051/084 055/088 2/T 00/U 01/U 11/B 33/T 31/U 11/U
BYZ WATCHES/WARNINGS/ADVISORIES. MT . None. WY . None.
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|Bozeman, Gallatin Field, MT||10 mi||2.1 hrs||S 5||10.00 mi||Fair||49°F||45°F||86%||1011.5 hPa|
Link to 5 minute data for KBZN
Wind History from BZN (wind in knots)
|1 day ago||SW||Calm||NW||N|
|2 days ago||NW||Calm|
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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.
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Wind Forecast for Billings, MT (8,2,3,4)(on/off)  Help
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