Tag Archives: Atlantic Ocean

25 July 2017: Six tropical cyclones active in the Pacific

A burst of cyclonic activity at two extremes over the vastness of the Pacific ocean in recent days has generated the six named tropical cyclones we see this Tuesday 25 July 2017!

Infrared GOES satellite image of 25 July 2017 showing Hurricanes HILARY and IRWIN, and Tropical Storm GREG off the Pacific coast of Mexico

Tropical Storm GREG, a strengthening and about to become major Hurricane HILARY, and an also strengthening Hurricane IRWIN are active, and moving away from land, off the Pacific coast of Mexico over the northern East Pacific. This makes it a total of nine named tropical cyclones  in the course of ten weeks in this quite active sub-basin for cyclogenesis.

Infrared satellite image (NOAA) of 25 July 2017 showing Typhoon NORU, Tropical Storm SONCA, Tropical depression KULAP, and a possible tropical cyclone from Tropical Wave 99W moving toward the Philippines

Also on this day, more than 12,000  kilometers to the west, over the northwest Pacific, we see a strengthening Typhoon NORU and a decaying Tropical Depression KULAP to the west of Japan, a strong tropical wave designated as ‘Invest 99W’ by NOAA approaching the Philippines, and some 3.000 kilometers farther to the west Tropical Storm SONCA making landfall in Vietnam.

Quite a spectacle indeed, six named tropical cyclones and a possible seventh, all simultaneously active over the northern Pacific Ocean.

Closer to our neck-of-the-woods here in Florida, and the Gulf and Atlantic coastal regions the tropics are somewhat calm. There have been one off-season named tropical cyclone, ARLENE, in April, and three named storms since the ‘official’ start of the 2017 Atlantic Hurricane Season, including short-lived Tropical Storm DON, which perished over the southeastern Caribbean just last week.

So, busy there, relatively quiet here, however we should keep in mind this is the time of the year when the northern tropics get busy with cyclonic activity. Get ready! Be prepared! MITIGATE!

Is the 2017 Atlantic Hurricane Season Here Already?

GOES satellite image of 18 June 2017 in the early evening (Florida time) showing two strong storm cells in the western Caribbean and southwestern north Atlantic, which are already showing potential for tropical cyclone development. (Courtesy of NOAA)

From my vantage point of southeast Florida I can see a rather large storm cell in the northwestern Caribbean, off the coast of Quintana Roo state in Mexico, covering more than four million square kilometers and already causing heavy rains throughout Central America. the Caribbean and major Antilles and even most of Florida, which is also showing some potential cyclonic tendencies. I also see another strong and large tropical wave close to the western terminus of ‘Hurricane Alley’ approaching the minor Antilles, which also shows potential for tropical cyclone development.

Does this mean the “official” 2017 Atlantic Hurricane Season is about to get underway? Some would argue that the season already got an early start when Tropical Storm ARLENE formed in the Atlantic basin around mid-April 2017. But since the officially human designated start date for the 2017 Atlantic season is June 1, I would argue that the “official” start of the season is still ahead of us.

GOES EAST satellite image (NOAA) of 18 June 2017 in the evening over the Caribbean, showing the rather large storm cell off the coast of the Yucatan peninsula in Mexico, which is generating heavy rains from the eastern east Pacific sub-basin to Jamaica and Hispaniola and over most of Florida, and it is also showing above average potential for tropical cyclone development as it moves northwestward toward the Gulf of Mexico.

Looking at the Caribbean and Hurricane Alley approaching the Windward Islands, the gateway to the Caribbean, there are two large, rather strong and menacing storm cells. which appear to be ready to mark the “official” start of the 2017 Atlantic Hurricane season.

The storm in the northwestern Caribbean off the eastern coast of the Yucatan Peninsula, is moving mainly northwest toward the Gulf of Mexico. It appears this storm will cross over the Yucatan to then emerge over the southwestern Gulf with above average potential for tropical cyclone development. This is a rather large system close to 2,000 kilometers in diameter that is generating vast amounts of rain from Panama to Florida and the eastern east Pacific to Jamaica and Hispaniola. This system is being monitored by the National Hurricane Center and it warrant attention from all interests i Mexico, the Antilles, Florida and all states around the Gulf of Mexico in the next 2 -3 days.

The storm at the western end of ;Hurricane Alley’ approaching the Windward Island and eastern Caribbean is the one that has most of my attention. This storm is moving west and based on its peak sustained winds it may have already reached tropical storm intensity. A close analysis of satellite imagery including wind is showing spiral bands converging toward a center of low pressure, an indication of strong cyclonic tendencies. I recommend all interests in the Caribbean, Gulf and Florida region need to monitor this system closely over the next 2 to 3 days.

The official 2017 Atlantic Hurricane Season may be about to start. This is the time to remain alert. Be prepared. MITIGATE!