Following a particularly cold January, in February sea ice formed in the outer parts of the Oslo fjord and in an unexpected quantity in the Skagerrak Strait, between Norway, Sweden and Denmark.
Rising temperatures has led to a marked decrease in the Arctic sea ice area and thickness which could be clearly seen in A deep upper-level trough caused a dust outbreak in California's Central Valley on 11 Oct Prev Next. Region Mexico. Regional topography and winds drive a strong upwelling of cold ocean waters and an increase in phytoplankton growth in the Gulf of Tehuantepec. Last Updated 21 December Arctic Sea Ice Minimum In September the Arctic sea ice extent shrunk to the second lowest in the year satellite record.
Meanders in the Mediterranean Instabilities in ocean currents can be identified through synergistic use of data from the Copernicus Sentinel-3 satellites. Anticyclonic eddy in the Mediterranean Sea In May , an anticyclonic eddy formed between the islands of Mallorca and Sardinia.
Indications of deep water formation in the Gulf of Lion from Sentinel-3 multi-sensor synergy Combining data from both sea surface temperature radiometry and altimetry provides clues about the occurrence of complex physical oceanographic processes across the ocean depths. The first event of each cool season normally occurs in mid-October with the last event occurring in late March or early April. At the outset of gale events, surface pressures reach a maximum value of about mb at Brownsville and mb at Coatzacoalcos.
During storm events the pressure at Brownsville are about 4 mb higher and at Coatzacoalcos about 3 mb more. During Tehuantepec events, the track of the high pressure center is often more critical than the maximum pressure at the center. The path that the anticyclone takes drives the northerly fetch down the coast of Mexico and setting up the strong pressure gradient across the Isthmus of Tehuantepec. As a practical matter, whenever the Brownsville pressure exceeds mb there is a good chance that a Gulf of Tehuantepec event may occur so mariners expecting to pass across the Gulf of Tehuantepec should monitor the surface forecast charts for the Western Gulf of Mexico as an indicator.
During gale events, the center of the high could track as far north as the Tennessee and Ohio River valleys while storm events require the high center to track into Mexico or the western Gulf of Mexico. Storm events are also frequently correlated to strong mb upper level troughs. Your email address will not be published. Use the radar vigorously to coast about three miles off the scalloped western side of the gulf.
Just past Salina Cruz, angle northeast across Bahia Ventosa toward the low, sandy shore of the eastern gulf and run about two and a half miles off the beach, staying in about 45 feet of water.
At two places along this eastern shore, be prepared to jog three and a half miles off the beach due to seasonal shoals: Boca de San Francisco and Boca de Tonala. After clearing each shoal, jog back to about two and a half miles off the beach in about 45 feet of water, continuing to Puerto Chiapas. This slightly farther offshore method still requires careful navigation by radar — course needs to constantly be adjusted to accommodate the gently curving coastline — and by depthsounder to avoid drifting too far offshore.
Download the Windy. To initiate contact, send a blank email to gribinfo saildocs. WWV at 5, 10 and 15 megs broadcasts at 10 minutes after every hour and announces any WX warnings across all the Pacific, including one specifically for the Gulf of Tehuantepec. Skip to content. Search for:. Weather Reports From Acapulco south, the Tehuantepec weather report is what all southbound boaters boaters are paying attention to.
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