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 6:45AM||Sunset 7:48PM||Saturday April 4, 2020 9:33 PM MDT (03:33 UTC)||Moonrise 2:31PM||Moonset 4:27AM||Illumination 91%|
7 Day Forecast for Marine Location Near Park City, MTHourly EDIT Help
Area Discussion for - Billings, MT  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS65 KBYZ 050230 AFDBYZ
Area Forecast Discussion . Updated National Weather Service Billings MT 830 PM MDT Sat Apr 4 2020
UPDATE. Going forecast in pretty good shape. Increasing clouds over the western half of the forecast area tonight, in response to relatively weak shortwave energy shooting up into southwest Idaho. This wave will eventually produce some light snow over the southwest mountains late tonight and Sunday. Timing for PoPs may be a little quick, as it appears the strongest life will come Sunday morning. Not enough disparity to adjust what is currently in the forecast, however. Temperatures appear on track. No changes. TWH
Tonight through Sunday night .
Satellite imagery shows shortwave departing northeast MT and ridge building in from the west. Our region is dry with scattered fair weather cumulus, and breezy post-frontal NW winds in our east. Further upstream, there is a trof along the coast of northern CA that is beginning to be kicked inland in response to more dynamic low moving southward off of the coast. The weaker trof will move through the northern great basin and western MT tonight into early Sunday, briefly clipping our west. This should result in a period of light snow for our western mountains (mainly SW aspects of the Beartooth/Absarokas) late tonight into early Sunday. Otherwise, lower elevations will see increasing mid clouds but should remain dry (cannot rule out a flurry west of Billings). This wave will depart and Sunday will then be dry. Next shortwave in southwest flow aloft will introduce the next potential for some snow over our mountains by late Sunday night.
Temperatures will continue to moderate over the coming days. We are seeing mid 40s to low 50s today, and this should rise to mostly 50s across our cwa on Sunday. Normal high for April 5th is 54 degrees at Billings, Miles City and Sheridan. JKL
Monday through Saturday .
Monday heights start to fall as a shortwave swings through Alberta into northern Montana but the increase in instability it brings allows for rain showers in the lower elevations and snow showers in the mountains. A few thunderstorms are also possible over southern MT and northern WY Monday afternoon into the evening. Not expecting severe weather from these thunderstorms at this time.
By Tuesday a deepening upper low over northern Alberta delivers a shift to a northwest flow aloft and brings a cold front through the area. This is a shift to a drier pattern as moisture is cut off so the frontal passage will be mainly dry. Fire weather could be a concern on Tuesday from warm temperatures, breezy conditions with winds 20 mph gusting to 35-40 mph, and minimum relative humidity values dropping to the teens. The northwest flow aloft will then bring high pressure into Montana for Tuesday night and Wednesday which will produce weak mixing and cut temperatures a few degrees. Northwesterly to northeasterly low level flow will keep temperatures a few degrees below normal.
For Friday into Saturday, model solutions show upper flow transitioning from an upper ridge over the Northern Rockies to more of a northwesterly, cyclonic flow which would support a cooldown and an increasing probability of rain and snow showers over the lower elevations and all snow in the mountains. borsum/RMS
VFR will prevail through Sunday. The Beartooth/Absaroka Mountains will become mostly obscured late tonight to early tomorrow as some light snow spreads in from the southwest. JKL
PRELIMINARY POINT TEMP/POPS.
Sun Mon Tue Wed Thu Fri Sat ----------------------------------------------------------- BIL 028/057 034/062 037/063 032/049 029/055 033/062 037/058 00/B 03/T 21/N 11/B 01/B 12/R 34/O LVM 028/057 035/054 036/057 032/051 030/056 033/060 035/055 11/B 16/T 21/N 11/B 01/B 22/O 34/O HDN 025/059 030/065 035/064 032/049 027/054 030/062 034/058 00/B 02/T 31/N 21/B 01/B 22/R 34/R MLS 025/056 030/061 035/059 030/046 024/049 027/057 032/055 00/B 00/E 21/N 10/B 01/U 11/B 22/R 4BQ 024/058 029/065 035/061 029/046 023/048 026/057 031/056 00/B 00/B 11/B 10/B 00/U 11/B 23/O BHK 022/052 027/060 032/057 027/043 021/045 023/053 029/053 01/N 00/E 20/N 10/N 01/U 11/B 12/O SHR 023/058 030/064 033/061 029/046 025/050 028/058 031/055 00/B 01/B 12/R 11/B 01/B 12/R 33/R
BYZ WATCHES/WARNINGS/ADVISORIES. MT . None. WY . None.
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
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|Billings, Billings Logan International Airport, MT||25 mi||41 min||ENE 13||10.00 mi||A Few Clouds||39°F||19°F||46%||1010.7 hPa|
Link to 5 minute data for KBIL
Wind History from BIL (wind in knots)
|1 day ago||S||SE||SE||SE||SE||SE||Calm||S||S||S||S||SW||SW||S||S||SW|
|2 days ago||NE||NE||NE||NE||NE||NE||NE||NE||NE||NE||NE||E||E||Calm||Calm||Calm||S||S |
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GEOS Local Image of EDIT
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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Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Billings, MT (23,6,7,8)(on/off)  Help
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