Marine Weather and Tides
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.
|Sunrise 7:13AM||Sunset 7:18PM||Monday September 24, 2018 12:14 AM MDT (06:14 UTC)||Moonrise 6:33PM||Moonset 5:32AM||Illumination 100%|
7 Day Forecast for Marine Location Near Gardiner, MTHourly EDIT Help
Area Discussion for - Billings, MT  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus65 kbyz 240228|
area forecast discussion... Updated
national weather service billings mt
828 pm mdt Sun sep 23 2018
As the trough axis continues to slide into central montana. An
area of showers and isolated thunderstorms has moved as far east
as yellowstone county. Radar returns have been dissipating as they
move east, so the current pops are spot on. Did tweak the
temperatures slightly, but otherwise no updates to the forecast.
Short term Valid for Mon and tue...
an upper shortwave trough axis is located from NW mt to id this
afternoon. Clouds and scattered showers are occurring to the east
of the trough axis. This shortwave trough will move eastward this
afternoon into tonight and cause an area of showers and isolated
thunderstorms to slide eastward over southern mt and northern wy.
Cooler air will move in with this trough and cause any rain
showers to change to snow showers above 8000 feet. However, the
cool air should lag most of the better moisture, lift, and lapse
rates... So snow showers should be scattered and deposit less than
2 inches mainly after midnight tonight above 8000 feet.
Upper cyclonic northwesterly flow will then settle over the
northern rockies behind the shortwave trough. Additional
disturbances will cross the region Monday afternoon and night and
bring additional periods of scattered showers and isolated
thunderstorms. It will still be cool enough for snow showers above
7000 feet. The highest elevations could pick up another inch or
less of snow Monday night.
High temperatures on Monday will generally range from the middle
50s over the western foothills to the lower 60s across the rest of
southern mt and north central wy. Rms
Tuesday and Tuesday night: northwest flow over the state with
weak shortwave energy moving through. Atmosphere not tremendously
wet and will be drying out as downslope flow decreases. Lingered
low pops in the morning, with a drying trend the rest of the day
and night as dry air filters in. Twh
Long term Valid for wed... Thu... Fri... Sat... Sun...
model disagreement and inconsistency continues for the end of the
week into the weekend. Confidence remains very low in forecast
details due to this. Overall, pattern does support cooler
temperatures, but the timing of the cooler air remains very much|
in question. Did not change much of existing forecast with the
hope the models will eventually come in line.
Northwest flow for Wednesday transitions to zonal for Thursday
and Friday on the gfs. The ECMWF has a similar solution but is a
bit more amplified in the pattern, and therefore sends cooler air
into the area quite a bit earlier. Ec advertises a high of only 50
degrees on Thursday, while the GFS has a high of 70. The ensemble
members are all over the place, so have a hard time leaning one
way or the other based on this alone. As mentioned by the midnight
shift, pattern recognition is key in leaning toward a cooler
forecast, so sided with undercutting mav guidance on this one.
Precipitation threat will remain at a chance, until a consistent
front, or overrunning forcing can be identified, but it appears
the best opportunity for precipitation will be Thursday night, and
then again Saturday night into Sunday. Twh
Scattered showers and isolated thunderstorms are expected tonight.
The showers thunderstorms could bring MVFR conditions. MVFR-ifr
ceilings over southeast mt east of kmls-k4bq will continue
overnight. Otherwise,VFR will prevail. Mountains will be obscured
tonight and Monday. Rms stp
Preliminary point temp pops
Mon Tue Wed Thu Fri Sat sun
bil 043 062 041 061 040 067 040 058 040 056 036 054 036 056
64 t 32 W 00 b 33 W 22 W 11 E 33 w
lvm 037 059 034 060 036 068 038 062 037 065 035 061 033 063
63 t 21 b 00 b 22 W 22 W 11 b 44 w
hdn 044 063 040 062 039 068 040 059 040 058 037 057 037 058
34 t 32 W 00 b 33 W 22 W 11 b 33 w
mls 043 063 041 061 041 067 041 059 040 056 037 056 038 057
23 t 30 b 00 b 33 W 22 W 12 W 33 w
4bq 042 063 040 059 040 067 042 058 040 061 038 060 039 060
24 t 32 W 00 b 33 W 22 W 11 E 22 w
bhk 039 062 038 058 038 064 039 055 037 055 035 053 036 055
13 t 40 N 00 b 22 W 22 W 22 W 33 w
shr 042 061 038 059 036 067 038 059 038 063 036 062 036 062
24 t 42 W 00 b 33 W 22 W 11 b 22 w
Byz watches warnings advisories
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|West Yellowstone, MT||32 mi||24 min||N 0||10.00 mi||Overcast||39°F||39°F||100%||1016.9 hPa|
Wind History from WYS (wind in knots)
|1 day ago||Calm||Calm||Calm||Calm||Calm||Calm||Calm||SW||SW||Calm||Calm||Calm||SW|
|2 days ago||SW||S||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||SW|
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Wind Forecast for Billings, MT (2,6,7,8)(on/off)  Help
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