Tuesday, March31, 2020
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Marine Weather and Tides
Garden City, ID

Version 3.4
NOTICE
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 7:25AMSunset 8:12PM Tuesday March 31, 2020 9:41 AM MDT (15:41 UTC) Moonrise 10:43AMMoonset 1:36AM Illumination 51% Phase: First Quarter Moon; Moon at 7 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 Garden City, ID
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location: 43.68, -116.25     debug


Area Discussion for - Boise, ID
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FXUS65 KBOI 311522 AFDBOI

Area Forecast Discussion National Weather Service Boise ID 922 AM MDT Mar 31 2020

DISCUSSION. Widespread rain and snow earlier this morning has decreased to scattered showers which will continue this afternoon while also shifting to the south and east. Instability will support isolated thunderstorms this afternoon in Idaho north of the Snake Basin. Windy this afternoon in south=central Idaho but below advisory criteria. Relatively drier but also colder tonight through Thursday, but a weak short wave trough will bring another chance of rain and snow showers mainly Wednesday afternoon. A little warmer over the weekend but also wetter with a chance of showers through Tuesday. Current forecast covers things well. No updates.

AVIATION. Widespread MVFR/IFR in rain and snow showers. Snow levels near 4k ft MSL near KMYL and 6 kft MSL near KTWF this morning, lowering by around 1000 ft this afternoon following a cold front. Showers diminishing this evening. Surface winds generally south to southwest 15-25 kt shifting to northwest and decreasing to 10-20 mph behind the front. Winds aloft near 10k ft MSL west 40-50 kt, decreasing to 10-20 kt MSL this evening.

PREV DISCUSSION. SHORT TERM . Today through Thursday night . Widespread precipitation today as an upper trough settles over the region. Mountains will see a steady rain/snow through early afternoon as snow levels hold around 4kft to the north to around 6kft along the NV border. Mountain valleys above 4500 feet will see 1 to 3 inches of wet snowfall through the day with up to 5 inches above 5500 feet. Lower elevations will see rain fill in as the leading edge of the trough shifts southeastward through the day, reaching the NV border and western Magic Valley by late afternoon. Marginal instability and forcing will support a slight chance of thunderstorms across the w-central and Boise mountains this afternoon. Winds will increase through the day with most areas seeing gusts in the 25-40 MPH range by afternoon. Precipitation and winds will diminish overnight as the atmosphere stabilizes, but another round of showers will develop on Wednesday as a fast- moving and less dynamic shortwave crosses the region. A quick inch or two of snow is possible in the mountains with rain/snow showers in the valleys. Wednesday night will be dry and cold as clearing skies allow for good radiational cooling. Daytime instability will support another round of mountain showers on Thursday while valleys remain dry and cool. Temperatures will be 10-15 degrees below normal Wednesday and Thursday.

LONG TERM . Friday through Tuesday . Broad agreement in models of a general trough over the west through the period, but large spread in timing and strength of impulses within the flow. Result is a pretty broad-brush forecast of precip chances virtually every day (a bit less chance on Friday), and temperatures remaining below normal through the period.

BOI WATCHES/WARNINGS/ADVISORIES. ID . None. OR . None.



www.weather.gov/Boise www.facebook.com/NWSBoise www.twitter.com/NWSBoise

DISCUSSION . LC AVIATION . JT PREV SHORT TERM . DG PREV LONG TERM . TB


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boise Air Terminal, ID7 mi48 minESE 910.00 miLight Rain43°F37°F82%1013.8 hPa
Nampa Municipal Airport, ID16 mi46 minSE 710.00 miPartly Cloudy41°F41°F100%1013.9 hPa
Caldwell - Caldwell Industrial Airport, ID21 mi45 minESE 1010.00 miOvercast42°F39°F89%1014 hPa

Link to 5 minute data for KBOI

Wind History from BOI (wind in knots)
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Last 24hrSE14S9SE7E10SE14SE16SE13SE11SE8S9SE9S7NW6NE6NE4N6E4NE3N5N16
G21
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1 day agoE8SE10SW4CalmS4N45NW6NE3CalmSE9E9SE3E4SE12SE13SE11SE14SE9SE12SE8SE9
G14
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2 days agoSE3W3W7W4NW7
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W5NW8W5--W3CalmE3SE7SE7SE6SE8SE9SE9SE8SE10S4SE5E7E7

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Boise, ID (11,2,3,4)
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Ground Weather Radar Station Boise, 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 numerous 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.