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Old 12-30-2014, 12:02 PM   #1
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Navy Weather

My buddy, a 30 year retired Navy Captain gave me this info for weather forecasting. It is updated twice a day and shows the forecast for 6 days ahead in 6 hour increments. We use the instructions for Bahama crossing but the info is world-wide.

WAVES
https://www.fnmoc.navy.mil/wxmap_cgi/
Click "continue to this website" (just go!!!)
Click on tropical/WW3 to the right of "Global."
Find W Atlantic
chart.
Under this chart click on WW3 (wind wave)
always click on
"Continue to website"
Click on very small word "all" to the right of "significant wave height and direction"
Page down using Z time (subtract 5 hours).
Dates and times are at bottom of each chart.

Dark Blue is GREAT!

================================================== ===========

WINDS
Click at top left on Models for drop down menu ... Click on "Tropical/Ofcl Areas"
Go to far left chart labeled Trop Atlantic.
Click on "GFS" under this chart. It is between the NVG and WW3.
Go to second from bottom item: Surface Streamlines"
Click on small "all" just to the right of green dot .
Page down through 6 hour increments.
Re check both winds and waves every twelve hours... Updated twice a day at 1AM and 1PM EST.
No winds (white areas) or Purple windlines are great.

Also go back and find "periods" between peaks ... Very important info.
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Old 12-30-2014, 01:03 PM   #2
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Mr. m. Got a warning about the link "This connection is untrusted"
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Old 12-30-2014, 01:26 PM   #3
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RTF,


That link has ALWAYS given the warning. Don't worry about it. I have been using it for many years with absolutely no problems. Excellent site - I am fairly certain that the generally reliable Passageweather.com - among other sites - gets their data directly from the Navy site.

ERIC
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Old 12-30-2014, 01:27 PM   #4
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Prettty typical for a lot of mil websites - they won't go through the hoops to "prove" they're "trustworthy". That's my go to for storm info. Seems to consistently beat the socks off NWS and other storm forecasts.
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Old 12-30-2014, 01:37 PM   #5
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Quote:
Originally Posted by sbu22 View Post
Prettty typical for a lot of mil websites - they won't go through the hoops to "prove" they're "trustworthy". That's my go to for storm info. Seems to consistently beat the socks off NWS and other storm forecasts.
DOD has their own Public Key Infrastructure (PKI) certification authorities with their own chain of trust. For whatever reason, they do not get incorporated into the chain of trust of general purpose computing. Just ignore the warnings as DOD sites are more trustable than ANY commercial site you will reach. You can also choose to include the DOD site as trusted with your browser.
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Old 12-30-2014, 01:42 PM   #6
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So if I wanted to zoom into the PNW is there a way to get there or is it just the E Pacific?
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Old 12-30-2014, 03:01 PM   #7
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West Coast included...


https://www.fnmoc.navy.mil/wxmap_cgi...2&set=SeaState
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Old 12-30-2014, 03:13 PM   #8
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Yeah I saw that, but no way to zoom into say the Washington coast?
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Old 12-30-2014, 05:36 PM   #9
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Dumb question, but what does Tau stand for? Looks like some really good data.


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Old 12-30-2014, 10:51 PM   #10
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Not very user friendly.
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Old 12-30-2014, 11:15 PM   #11
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Quote:
Originally Posted by Alaskan Sea-Duction View Post
Yeah I saw that, but no way to zoom into say the Washington coast?
Try this https://www.fnmoc.navy.mil/wxmap_cgi..._nepac&set=All
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Old 12-31-2014, 02:50 AM   #12
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Wow.
Great.
Thanks.
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