Sunday, May20, 2018 L-36.com


Marine Weather and Tides
Hailey, ID

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 6:08AMSunset 9:00PM Sunday May 20, 2018 7:10 PM MDT (01:10 UTC) Moonrise 10:28AMMoonset 12:29AM Illumination 36% Phase: Waxing Crescent; Moon at 6 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 Hailey, ID
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location: 43.53, -114.31     debug


Area Discussion for - Pocatello, ID
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Fxus65 kpih 201925
afdpih
area forecast discussion
national weather service pocatello id
125 pm mdt Sun may 20 2018

Short term Tonight through Wednesday. A broad upper level trough
was observed over the NW coast early this afternoon as convection -
thunderstorms - began to fire across the south-central and central
mountains. The numerical models continue to favor increased
thunderstorm coverage west of an arco to malta line this afternoon
which gradually transitions further east across the region this
evening as thunderstorm support weakens. Some storms early this
evening may produce some fairly intense rainfall in the central and
south-central mountains. As the upper trough digs south overnight, a
closed upper low forms near the southern sierra mountains Monday
resulting in a diffluent flow aloft over SE idaho which would be
very supportive of ongoing thunderstorm activity across the region.

By Tuesday, the low begins to lift slowly north across the southern
great basin reaching the SW idaho border sometime Wednesday
afternoon leaving SE idaho under a broad area of support for
continued thunderstorm activity. Statistical guidance continues to
show above normal temperatures through Wednesday. Huston

Long term Wednesday night through next Sunday night. Longwave
indicates a very weak pattern, but at least it is weak upper level
ridging with the troughing in the desert southwest not getting any
reinforcement. This means the low in the great basin desert
southwest may actually lift and move out. But the flow is so weak
from the idaho panhandle southward that I would expect varied
solutions by the different guidance suites with little consistency
from run to run during this extended period. The main energy and
storm track will be to the north of the forecast area, pretty much
in canada. So little in the way of organized fronts passing through;
but there is a risk of subtropical moisture making its way in from
the south, if some southerly wind develops between the gem state and
the baja peninsula. Morning guidance indicates that instability and
some weak troughing moving through the weak longwave upper level
ridge will keep showers a threat somewhere (mostly in the central
idaho mountains and the northern highlands) through fri, then sat
still looks great for an excellent start to the upcoming holiday
weekend. By Sun night, the storm track does sag a little southwards
and could make for a wet memorial day, although that is out of the
range of this forecast. Messick

Aviation Focus of convection will be the western airports, with
the likelihood of tsra above 50 percent at kbyi and ksun. So have
tried to time this and placed tempo groups during the most likely
hours. The other airdromes all have 30 to 40 percent chance threat,
so have kept them to vcts. The maximum instability occurs in the
late afternoon, as most would figure, with things toning down
considerably between 21 02z and 21 03z. However, even then, with
negative lifted indices continuing, showers should remain possible
mainly through 21 06z. In fact, heavy showers appear possible at
kbyi and ksun during the mid-evening hours tonight. After this, most
of the airports have a threat of stratus with all the moisture being
dumped out of the sky. Pass areas surrounding the wood river and
teton valleys have seen fog, so it would not surprise that stratus
could be a problem at ksun and kdij. In fact the NAM guidance
suggests that it will be a problem, so have forecasted marginalVFR
cigs in both of those locations starting late tonight, along with
vsbys in the 3sm to 5sm range. The other airdromes are also at risk,
but the amount of rainfall actually at the station is in question,
so only have sct clouds below 3000 ft agl. Otherwise, mostly mid-
level CIGS during the time period of the tafs. Winds should be
widespread light and variable except near tsra. Ksun will have the
most difficulties in the morning; it all depends on whether or not
they receive the heavy rains tonight. Messick

Hydrology Rivers and streams continue to run high, fast and
cold across the region. We still have minor flooding issues along
the big wood river at hailey where a flood advisory will remain in
effect through the next couple of days. If the river level rises as
currently forecast, we may need to upgrade the advisory to a flood
warning sometime Tuesday or Wednesday. Keyes huston

Pih watches warnings advisories None.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hailey, Friedman Memorial Airport, ID2 mi75 minWNW 710.00 miMostly Cloudy55°F51°F88%1014.9 hPa

Wind History from SUN (wind in knots)
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Last 24hrS7CalmNW6NW5--NW6NW7NW8NW7NW7NW7NW10
G14
NW10NW9NW9NW7SE4SE5SE5SE9S3E9W7W6
1 day agoCalmCalmN3NW5--CalmNW3CalmNW4NW3NW6NW4NW6NW7CalmE4S7SE5E8NW8N5W4S6Calm
2 days agoCalmW10
G19
SE5SE8--N4CalmNW3NW7N7NW4NW6NW7NW5E6SE6SE9
G16
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G16
--W5--NW9NW9W5

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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GOES Local Image of PacificNorthwest    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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Wind Forecast for Pocatello, ID (21,6,7,8)
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Ground Weather Radar Station Pocatello/Idaho Falls, ID
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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.