Wednesday, August21, 2019 L-36.com


Marine Weather and Tides
South Glastonbury, MT

Version 3.4
NOTICE
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 6:30AMSunset 8:24PM Wednesday August 21, 2019 2:01 PM MDT (20:01 UTC) Moonrise 10:24PMMoonset 11:27AM Illumination 63% Phase: Waning Gibbous; Moon at 21 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 South Glastonbury, MT
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location: 45.26, -111     debug


Area Discussion for - Billings, MT
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Fxus65 kbyz 211459
afdbyz
area forecast discussion
national weather service billings mt
859 am mdt Wed aug 21 2019

Update
No changes to inherited forecast this morning, with mainly quiet
day on tap. Gilstad

Short term Valid for tdy and thu...

the ridge is going to continue through Wednesday allowing for
another relatively quiet day across the forecast area. Easterly
winds will be similar to yesterday bringing additional moisture
into the area and winds up to 20 mph. Showers and thunderstorms
will develop over the beartooth bighorn mountains, moving onto the
foothills this afternoon as a weak shortwave moves over the area.

Any storm that develops have the potential to be slow moving
along with pwats rising above 1.0 inch.

Moving into Thursday, a cold front will drop down through central
and western montana. The front will be through billings around
noon which would limit the chance of thunderstorm activity along
and west of billings. Stronger storms are possible east of the
front with higher instability, dewpoints and shear in the
environment. Easterly winds up to 35 mph along this front are
expected with winds shifting to the northwest behind the front.

Pwats will increase to above 1.5 inches east of this front in far
southeastern montana. With torrential rainfall possible with these
storms, a flash flood watch is possible at this time in far
southeastern montana.

High temperatures will reach the mid 80s to low 90s. Low
temperatures will range from the mid 50s to low 60s. Carrothers

Long term Valid for fri... Sat... Sun... Mon... Tue...

cooler temperatures and zonal flow will impact the forecast area
through the extended forecast behind the cold front that continued
to move through eastern montana Thursday night. Shortwaves with
weak energy will move over the area behind the front allowing for
more widespread chance of showers between Friday and early Sunday.

High temperatures will range from the upper 70s to lower 80s
through Sunday with additional cooling into the low 70s expected
for Monday and Tuesday. Carrothers

Aviation
A few lingering showers over far SE mt will gradually diminish
through the morning. Isolated afternoon showers and thunderstorms
will develop over the higher terrain and will drift into the
adjacent plains through the evening hours. This activity should
stay generally west of rosebud county. These storms will be slow
moving producing local ifr conditions with heavy rain and wind
gusts to 40kts. OtherwiseVFR conditions will prevail into
Thursday. Chambers stp

Preliminary point temp pops
Tdy Thu Fri Sat Sun Mon tue
-------------------------------------------------------
bil 091 063 090 057 081 060 086 059 082 054 079 052 073
0 u 12 t 40 b 11 b 31 u 21 u 23 w
lvm 091 055 084 050 082 053 085 050 080 047 078 044 074
1 u 14 t 40 b 11 E 31 u 21 u 22 w
hdn 090 061 092 057 080 058 084 057 080 052 077 051 072
0 u 12 t 40 b 11 b 31 u 21 u 22 w
mls 088 063 090 058 078 060 083 058 077 052 074 050 070
0 u 04 t 71 u 21 b 32 W 21 u 23 w
4bq 086 060 089 057 078 059 083 057 077 051 074 049 070
1 u 13 t 71 u 22 t 53 W 21 u 32 w
bhk 083 058 084 057 077 057 080 055 076 049 073 047 068
0 u 02 t 71 b 23 t 43 W 22 W 23 w
shr 088 058 092 055 080 057 084 055 079 049 076 047 071
3 t 23 t 51 u 11 E 42 W 32 W 23 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, MT37 mi66 minENE 410.00 miFair82°F51°F34%1013.1 hPa

Link to 5 minute data for KBZN

Wind History from BZN (wind in knots)
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Last 24hrNW7N7NE4CalmNE3SE13SE1254S4SE4NW10CalmNW4W5CalmCalmS4SW3NE4CalmCalmN6NE4
1 day agoN9
G15
CalmN9NE7E6SE4N6NW4W3--S7S7S10S9SE4CalmCalmSE5CalmE4NE4N5SE46
2 days agoN5N7NW9SE4NE7SE3SE5SE7SW7N9S6CalmSE7S6S6S7NE4SE8E3CalmE33NE4N5

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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wmap_P
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 (16,3,4,5)
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Ground Weather Radar Station Billings, MT
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weather_mapweather_map weather_map

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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.