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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 6:29AM | Sunset 8:25PM | Tuesday August 20, 2019 7:37 PM MDT (01:37 UTC) | Moonrise 9:55PM | Moonset 10:21AM | Illumination 71% |  |
7 Day Forecast for Marine Location Near Big Timber, MT
Hourly EDIT Helplocation: 45.83, -109.95 debug
Area Discussion for - Billings, MT
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus65 kbyz 202112 afdbyz area forecast discussion national weather service billings mt 312 pm mdt Tue aug 20 2019 Short term Valid for Wed and thu... relatively flat upper ridge in place over the area. Surface high pressure sitting over southern saskatchewan has provided east to northeast surface winds today. This has provided a cooler day with higher humidity levels as dewpoints have been in the mid 40s. The surface high is projected to slide east to southeast the next two days, and this will allow east to southeast surface winds to continue over the eastern half of the area through Thursday. This will allow dewpoints to increase further, so despite increasing temperatures, humidity levels should not fall to levels seen on Monday. In fact, precipitable waters will rise the next two days and thus any storm that forms will have the capability of producing heavy rain. A weak shortwave is progged to slide across the southern half of the forecast area tonight. High resolution models develop convection over the mountains and foothills late this afternoon and early this evening, then swing the activity east into southeast montana this evening and overnight. A bit of a low level jet into southeast montana is expected to keep activity going through the night there an have thus adjusted pops a little higher. Wednesday looks relatively quiet, as the ridge axis amplifies over the forecast area. An upper trough will slide across the western and central part of the state on Thursday. The strongest energy moves across northern montana, but there is enough sharpness to the trough, and enough cape and shear, to kick storms off over southern montana. In fact, precipitable water values rise to 1.6 inches over southeast montana, which is 2.5 standard deviations from normal. Torrential rainfall can be expected with storms over the east and may have to watch for flash flooding. That being said, storms should be moving fast enough, and the lack of a saturated ground, should mitigate that threat some. Strong storms are possible from billings east on Thursday too, given projected CAPE and shear. Twh Long term Valid for fri... Sat... Sun... Mon... Tue... mid level heights lower quite a bit behind the upper trough on Friday and allow a cold front to race through the area Thursday |
night and Friday. Temperatures will step down into the 80s Friday through Sunday. More dramatic cooling is expected early next week as highs look to be held in the 70s Monday and Tuesday with northwest flow developing, as the upper ridge retrogrades over the west coast. There should not be a dramatic chance of showers through the extended, as the flow aloft will be primarily downslope. Will focus on early Friday, (behind the trough), and Saturday into early Sunday, (with the next onset of stronger energy), as the main chance periods for showers. Twh Aviation In general,VFR conditions will prevail through tonight. Isolated showers and thunderstorms can be expected to develop over southern higher terrain late this afternoon and drift eastward into the adjacent foothills and plains into the evening hours. Additional isolated to scattered showers and thunderstorms are expected tonight over SE montana associated with a low level jet. Gusty winds will be the main threat in the vicinity of showers and thunderstorms. Chambers stp Preliminary point temp pops Wed Thu Fri Sat Sun Mon tue ----------------------------------------------------------- bil 060 091 062 089 058 083 060 086 058 082 054 079 053 072 20 u 12 t 51 u 01 b 21 u 10 u 11 b lvm 053 090 056 084 050 083 053 083 050 079 046 078 045 072 11 u 14 t 51 b 11 b 20 u 10 u 01 u hdn 058 090 061 090 057 082 059 084 056 080 052 077 051 071 21 u 12 t 41 u 10 b 21 u 10 u 11 b mls 059 087 063 090 058 078 059 082 057 077 051 075 051 071 31 u 03 t 62 t 11 b 22 t 11 u 11 b 4bq 058 085 060 089 058 079 058 082 056 077 051 075 051 070 42 t 13 t 62 t 11 b 32 t 21 u 11 b bhk 055 082 057 084 057 078 056 080 055 076 049 073 049 069 30 u 02 t 73 t 12 t 43 t 21 u 22 t shr 057 088 058 090 055 082 056 083 054 079 050 076 049 071 44 t 32 t 52 t 11 b 22 t 21 u 11 u Byz watches warnings advisories Mt... None. Wy... None. Weather.Gov billings |
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 |
| Livingston, Mission Field Airport, MT | 27 mi | 45 min | E 17 | 10.00 mi | Fair | 79°F | 48°F | 35% | 1015.7 hPa |
Link to 5 minute data for KLVM
Wind History from LVM (wind in knots)
| 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 | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | |
| Last 24hr | S | Calm | NE | NW | NW | NW | NW | W | NW | NW | E | NE | NE G16 | E | E | E | E G21 | E | ||||||
| 1 day ago | SW | W | W | N | W | NW | W | SW | NW | W | W | SW | W G20 | NW | W | W | G23 | |||||||
| 2 days ago | E | E | E | E | S | NW | NW | NW | Calm | NW | NW | NW | NW | W | W G21 | W | W G21 | W G18 | W | W | W |
Tide / Current Tables for
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GOES 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.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Billings, MT (21,6,7,8)
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Ground Weather Radar Station Billings, MT
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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. |