Ophelia dies; Philippe, Hilary no threat; Nesat drenching the Philippines
High wind shear and dry air finally managed to kill off Tropical Storm Ophelia yesterday. The storm's remnants continue to fester a few hundred miles east of the Northern Lesser Antilles Islands, but dry air and moderate wind shear of 10 - 20 knots should make any regeneration of Ophelia slow. NHC gave Ophelia a 20% chance of regenerating by Wednesday in their 8 am Tropical Weather Outlook. In the far eastern Atlantic, Tropical Storm Philippe is headed west-northwest into the middle of the North Atlantic, and is not expected to trouble any land areas. Philippe is the 16th named storm this year, tying 2011 with 2008, 2003, and 1936 for 7th place for the most number of named storms in a year. Philippe's formation date of September 24 puts 2011 in 2nd place for earliest date of arrival of the season's 16th storm. Only 2005 had an earlier 16th storm. With only three of this year's sixteen storms reaching hurricane strength so far, though, this year has been near average for destructive potential. Atlantic hurricane records go back to 1851. Philippe has a modest chance to become the season's fourth hurricane; the 5 am EDT NHC wind probability forecast gave Philippe a 23% chance of intensifying into a hurricane by Tuesday afternoon. Wind shear is expected to steadily increase today to 15 - 20 knots, limiting Philippe's chances to become a hurricane.
Figure 1. MODIS satellite image of Hurricane Hilary at 2:25 pm EDT September 25, 2011. At the time, Hilary was a Category 3 storm with 125 mph winds. Image credit: NASA.
Eastern Pacific's Hurricane Hilary slowly weakening
In the Eastern Pacific, Hurricane Hilary has slowly weakened to a Category 3 hurricane with 120 mph winds. A trough of low pressure is expected to turn Hilary to sharply to the north on Wednesday, but most of the models do not bring Hilary ashore over Mexico's Baja Peninsula during the next five days. Since Hilary will be crossing cool water and encountering increased wind shear on its journey north, the storm is likely to be no stronger than a tropical depression if it does manage to reach the coast.
Figure 2. Microwave image from NASA's TRMM satellite showing the estimated rain rate of Typhoon Nesat at 4:56 am EDT Monday September 26, 2007. Rainfall rates of up to 0.8"/hour (yellow colors) were occurring along the southeast quadrant of the eyewall. Image credit: Navy Research Lab, Monterey.
Typhoon Nesat nears landfall in the Philippines
Typhoon Nesat, a Category 1 typhoon with 90 mph winds, is just a few hours from landfall near Casiguran on Luzon Island in the Philippines. Nesat was expected to intensify to a major Category 3 storm before landfall, but the typhoon ingested a large pulse of dry air that got wrapped into the core of the storm, slowing down intensification. The typhoon still has time to intensify into a Category 2 storm, but Nesat's wind and storm surge will not cause major devastation. Heavy rains from Nesat are a major concern, though. Recent microwave satellite images (Figure 2) show rains up to 0.8" per hour falling along the southeast quadrant of Nesat's center, and heavy rains of 5 - 10 inches will cause significant flooding in the Philippines. Nesat will lose strength during its crossing of the Philippines, but is expected to regain strength as it crosses the South China Sea before making another landfall near China's Hainan Island on Thursday.
Jeff Masters
Reader Comments
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Another hot and dry one here. Hazy.
Maybe it was Winston Churchill, just to make matters more confusing....
LOL
Us in the islands care if it intensifies and we suddenly have a TS on our doorstep, as hard as this may be for you the USA is not the be all and end all of the world!
Erratically moving systems are nearly impossible to forecast as regards track... I perfectly remember hurricane Lenny which was supposed to move NE but was heading SE instead over the N Leewards..
Intense rains
Indeed, good point!! where are you? I am in Tortola
The adults on here know that, of course; 'tis only the trolls who have a difficult time grasping such obvious concepts. ;-)
Nesat is definitely giving the Philippines a hard time; parts of Manila Bay are seeing their worst flooding in decades, at least a dozen lives have been lost, and more is on the way.
AL, 16, 2011092706, 185N, 593W, 25, 1010, LO
AL, 16, 2011092712, 185N, 595W, 25, 1010, LO
I heard this morning that Key West got 4.8 inches of rain yesterday. How can 4.8 inches turn into 3-4 feet of pooling rain?!? I know, concrete and buildings is the answer.
There is a picture on the front page of the Citizen today showing three tourists swimming across Front street. Don't those people realize that there is sewer, gasoline, oil, and all kinds of nasty stuff in that water. Bad enough you have to wade through it, but to put your face down near it is asking for trouble! As the saying goes "Only in Key West" LOL. I hope everyone has a good day today.
lol. it's like a hurricane in your head.
Even most of Florida will get a taste of Fall this weekend!!!
<---------------------------------------------- !!!!!!!!!!
I live in florida and am going overseas. hope my flight will be ok!
(See the previous mapping for 26Sept_6pmGMT for a more explanatory overall view along with other details)
18.9n59.0w, 19.0n59.4w had been re-evaluated&altered to
19.1n58.9w, 19.4n59.2w, 19.6n59.6w, 19.7n59.9w which were re-evaluated&altered for exOphelia's_12pmGMT_ATCF
18.6n58.8w, 18.6n58.9w, 18.5n59.1w, 18.5n59.3w, 18.5n59.5w are now the most recent positions.
Starting with the center relocation on 26Sept_6amGMT and ending 27Sept_12pmGMT
The 5 eastern line-segments represent exOphelia's path.
and the westernmost line-segment is the straightline projection for 27Sept_12pmGMT.
Using straightline projection of the travel-speed&heading derived from the
ATCF coordinates spanning the 6hours between 12pmGMT then 6pmGMT :
exOphelia's travel-speed was 2.2mph(3.5k/h) on a heading of 270degrees(W)
exOphelia was headed toward passage over TheBaths,ViginGorda,BritishVirginIslands.
Copy&paste bbq, 18.8n58.6w-18.6n58.8w, 18.6n58.8w-18.6n58.9w, 18.6n58.9w-18.5n59.1w, 18.5n59.1w-18.5n59.3w, 18.5n59.3w-18.5n59.5w, vij, 18.5n59.3w-18.427n64.44w into the GreatCircleMapper for more info*.
* BBQ is on the map solely as a fix to a peculiarity in the GCMapper's map-scale program.
Delete bbq and you'll see what I mean.
Viewing: 751 - 790
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