KREUZADER (Posts tagged hurricane)

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Hurricane Harvey was fueled by record heat in the Gulf of Mexico “When Harvey entered the Gulf of Mexico, it encountered record ocean heat energy (top graph in the image below). That wasn’t just random chance—average sea surface temperatures have...

Hurricane Harvey was fueled by record heat in the Gulf of Mexico

When Harvey entered the Gulf of Mexico, it encountered record ocean heat energy (top graph in the image below). That wasn’t just random chance—average sea surface temperatures have increased about 0.6°C since 1960 (lower graph below). Global warming obviously includes warming seawater, which means greater ocean heat energy.

As Hurricane Harvey grew strong feeding on that energy, it left water about 1° to 2°C cooler in its wake (but still above the 26°C hurricane threshold). Doing the math, the researchers estimate this represents about 590 billion gigajoules of heat energy lost by the upper ocean. 

Source: Ars Technica
tropical cyclone hurricane weather global warming anthropogenic climate change
“GOES-16 captured this geocolor image of Hurricane Irma the morning of September 5, 2017. Irma is a potentially catastrophic category 5 hurricane and will bring life-threatening wind, storm surge, and rainfall hazards to portions of the northeastern...

GOES-16 captured this geocolor image of Hurricane Irma the morning of September 5, 2017. Irma is a potentially catastrophic category 5 hurricane and will bring life-threatening wind, storm surge, and rainfall hazards to portions of the northeastern Leeward Islands beginning later today, and the Virgin Islands and Puerto Rico beginning tomorrow (9/6).

Source: nesdis.noaa.gov
weather hurricane hurricane irma tropical cyclone
At times during Harvey, the European model outperformed humans“For a long time, the big question with Harvey concerned what the storm would do after it moved inland into the central Texas coast late on Friday, August 25. Would it stall for one or two...

At times during Harvey, the European model outperformed humans

For a long time, the big question with Harvey concerned what the storm would do after it moved inland into the central Texas coast late on Friday, August 25. Would it stall for one or two days and then move south? Would it stall for three or four days? Or would it slowly drift to the east-southeast, out into the Gulf of Mexico and then move up the coast?

Not surprisingly, it was the European forecast model that first sniffed out the storm’s actual track. As early as Thursday, August 24, the model forecast a move inland near Victoria, a stalling out over the weekend, and a southeastern drift that brought the storm back over the Gulf of Mexico by Sunday or Monday. This is very close to what actually unfolded over the next five days.

Source: Ars Technica
weather tropical cyclone hurricane hurricane harvey