La Manzanilla.info Message Board Archives

Re: Windy

Posted by Bret B on January 27, 2015, 12:50 pm, in reply to "Re: Windy"
187.148.135.214

Cool is right! I've never seen this before, Daniel, but it's going into my weather favorites list! All my other sites that show current or forecasted winds failed to show anything like what we are getting today. Finally in the last couple of hours the Manzanillo airport started reporting some winds, about 17mph from the ESE: http://www.wunderground.com/history/airport/MMZO/2015/01/27/DailyHistory.html (scroll down to see their table of data for today, along with charts.)

On your great "Earth" site I made a couple adjustments (changed the wind display altitude from 1000hPa to "Surface", time control to "Now", and I placed a measurement marker on the location for La Manzanilla (about 19.3°N latitude by 104.8°W longitude.) It looks like my changes are incorporated in this revised link, except for the La Manz location marker (to add your own, just click on the map where you want the marker to be and keep clicking around until you have it in the right spot):
http://earth.nullschool.net/#current/wind/surface/level/orthographic=-104.02,19.71,3000

(There is a discrepancy between the lat/long captured in the URL and the lat/long showing on the screen as a measurement marker. I don't know why.)

The La Manz marker shows 19km/hr winds from 130° (SE), but just offshore the winds are 28km/hr. The local cause is a fairly small but strong counterclockwise swirl you can see on the map just off our part of the coast at about 18°N, 105°W. It looks and acts like a low pressure zone, but I can't see that when I probe around using their "MSLP" overlay (Mean Sea Level Pressure.)

Whatever; it seems to show our current conditions pretty well. Now to see if it predicts as well. If you click the time control forward in 3 hr steps, it shows the winds tapering off while staying from the ESE. Vamos a ver!
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