Dr. Jeff Masters' WunderBlog

Igor delivers punishing blow to Newfoundland; 95L growing more organized
Posted by: Dr. Jeff Masters, 01:21 PM GMT del 22 Settembre 2010 +7
Hurricane Igor delivered a punishing blow to Newfoundland Canada, which suffered one of its worst poundings by a hurricane in the past century. Igor made it all the way to southeast Newfoundland yesterday as a Category 1 hurricane, bringing a peak wind gust of 107 mph to Cape Pine in Southeast Newfoundland. Igor brought sustained winds of 58 mph, gusting to 85 mph, to Newfoundland's capital, St John's. The city recorded a remarkably low pressure of 958 mb, and picked up 3.99" of rain during Igor's passage. Widespread rain amounts of 5 - 9 inches fell over much of southeast Newfoundland's rocky terrain, which is unable to absorb so much water. The resulting severe flooding washed out hundreds of roads, collapsed several major bridges, and forced numerous rescues of people trapped on the second stories of their homes by flood waters. Igor generated swells of 6 - 8 meters (20 - 26 feet) that pounded the southern coast of Newfoundland last night and this morning; significant wave heights reached 39 feet at the Newfoundland Grand Banks Buoy, and a storm surge of a meters (3.28 feet) hit the northeast shores of Newfoundland last night. Igor is now a large and powerful extratropical storm off Greenland and Labrador, and continues to generate hurricane force winds over water--winds at Angisoq, Greenland were sustained at 66 mph this morning.

It is not that unusual for hurricanes to penetrate as far north as Newfoundland's latitude; over 40 hurricanes have done so. The last time this occurred was in 2003, when Hurricane Fabian made it to latitude 48.7°N as a hurricane. The all time record is held by Hurricane Faith of 1966, which followed the Gulf Stream and maintained hurricane status all the way north to latitude 61.1°N, just off the coast of Norway.


Figure 1. Little Barsway bridge 10 km north of Grand Bank, Newfoundland, after floodwaters from Hurricane Igor swept it away. Image credit: George J.B. Rose.


Figure 2. Hurricane Igor at 11:47am EDT on Wednesday, September 21, as it pounded Newfoundland as a Category 1 hurricane with 75 mph winds. Image credit: Environment Canada.


Figure 3. Video of impressive flooding on Newfoundland's Burin Peninsula, whose 20,000 residents were cut off from the rest of the province by flooded roads and closed bridges.

Dangerous Caribbean disturbance 95L growing more organized
A tropical wave (Invest 95L) moving westward at 15 mph though the south-central Caribbean is bringing gusty winds and heavy rain to the northern coast of Venezuela and the islands of Curacao, Aruba, and Bonaire this morning. A wind gust of 38 mph was recorded at Curacao last night. Radar from Curacao and satellite loops show that 95L's thunderstorms have a pronounced rotation, with a center of circulation located just off the coast of South America. Thunderstorm activity is fairly limited, but is slowly increasing in areal coverage and intensity. Wind shear over the Caribbean is low, 5 - 10 knots, and is forecast to remain low to moderate, 5 - 15 knots, for the rest of the week. NHC is giving the disturbance a 60% chance of developing into a tropical depression by Thursday. I'd put the odds higher, at 70%. The Hurricane Hunters are scheduled to investigate 95L this afternoon.

The wave should continue moving westward near 15 mph through Friday afternoon, when it will arrive near the northern coast of Nicaragua. Most of the models show some development of 95L by Thursday or Friday, and the disturbance will bring heavy rains to the Netherlands Antilles Islands and north coast of South America on today and Thursday as passes to the north. Heavy rains may also spread to Southwest Haiti and Jamaica on Thursday, and the Cayman Islands, Cuba, Honduras, and Nicaragua on Friday. When 95L moves over or just north of Honduras on Saturday, a trough of low pressure diving southwards over the Eastern U.S. will weaken the steering currents over the Western Caribbean and cause 95L to turn more to the northwest and slow. If the center of 95L remains over water, the storm could easily develop into powerful and dangerous Hurricane Matthew over the Western Caribbean early next week. Even if the center stays over land, the circulation of the storm may be capable of generating dangerous flooding rains over Central America. Steering currents will be weak over the Western Caribbean through the middle of next week, and 95L may spend up to a week over the Western Caribbean, drenching the region with very heavy rains. Another possibility is that the trough of low pressure over the Eastern U.S. will be strong enough to draw 95L northwards across western Cuba and into the Gulf of Mexico 6 - 8 days from now. This solution is not being emphasized as much in today's model's runs as yesterday's, and the danger to the U.S. is uncertain at this point.


Figure 4. Morning satellite image of 95L.

Tropical Storm Lisa
Tropical Storm Lisa continues to churn the waters of the far Eastern Atlantic. By Friday night, upper level winds out of the west are expected to increase, bringing high wind shear of 20 - 45 knots over Lisa. The high shear may be capable of destroying the storm by early next week. It appears unlikely that Lisa will affect any land areas.

Georgette headed towards Arizona
Tropical Depression Georgette hit the tip of Baja California as a weak tropical storm with 40 mph winds yesterday, but dropped little rain. Georgette is in the Gulf of California, headed northwards, and could bring heavy rains to Arizona on Thursday.

Hurricane Karl's aftermath
Mexico continues to clean up from Hurricane Karl, which made landfall last Friday in Veracruz state as a Category 3 hurricane with 115 mph winds. Karl dumped approximately one foot of rain in the Sierra Madre Oriental Mountains, which cause some rivers to rise to unprecedented levels. The death toll from Karl's flooding and mudslides stands at 16, and ten of thousands remain in shelters after being displaced from their flooded homes. Insurance company AIR Worldwide is estimating insured losses at $100 - $200 million. Actual damage is estimated to be as much as $3.9 billion, since insurance take-up rates are low in Mexico. Karl is the second billion-dollar hurricane to hit Mexico this year; in June, Hurricane Alex hit just south of the Texas border as a Category 2 storm, killing 51 and doing $1.9 billion in damage.

Elsewhere in the tropics
The GFS model predicts a new tropical depression might develop in the Central Caribbean about seven days from now. The NOGAPS model predicts a new tropical depression will form off the coast of Africa about seven days from now.

My next post will be Thursday morning.

Jeff Masters
Uprooted Buoy (Maciejewski)
A buoy is left stranded on the beach from the storm waves of Hurricane Igor...
Uprooted Buoy
Categories: Hurricane
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1652. Neapolitan 01:38 AM GMT del 23 Settembre 2010    
Quoting weatherman12345:

when do you thing a depression will officaially form


Most here are saying no sooner than 8AM tomorrow, but I suspect it'll be around 2:30AM EDT based on what I see...
Member Since: novembre 8, 2009 Posts: 4 Comments: 11309
1653. Orcasystems 01:38 AM GMT del 23 Settembre 2010    
Quoting zoomiami:



ewwww -- don't go there.


ROFLMAOPM
Member Since: Ottobre 1, 2007 Posts: 77 Comments: 26110
1654. JupiterFL 01:38 AM GMT del 23 Settembre 2010    
Quoting flsky:

OK, sorry. It's just that everyone is talking about possible 95L, but I haven't seen anyone talking about the area to the west of it.


Where exactly are you looking flsky?
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1656. quante 01:38 AM GMT del 23 Settembre 2010    
Looks like broad COC in last frame of Linkthis loop.


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1658. hurricanehunter27 01:39 AM GMT del 23 Settembre 2010    
Post 1630

Yeah ATL was awful this year temps got in the 100'S in the city 2 days in a row with 75%. The heat index at one point was 120F.

To all the trolls you may recall from pre post i said i had a house in FL, it is a vaction house i do not actully live there i live in ATL Ga.
Member Since: Luglio 22, 2010 Posts: 1 Comments: 3675
1659. PSLFLCaneVet 01:39 AM GMT del 23 Settembre 2010    
Quoting sammywammybamy:


Im Worried.. Wilma Did not Treat me Well...

I Had No Power for 12 Days

Once it Gets Designated a TD Friday .. Im going to go get my Supplies and Batteries here in South Florida....

And get my Video Camera Charged .. Im going to tape it if it comes through....

If Matthew does hit South Florida as a Major.. I Hope that he doesnt come at night...


I agree, I think. The bolding is, unusual, for you. I wish hardship on no one. I was here for her too. And, for the record, night storms are the worst,imo.
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1661. kmanislander 01:40 AM GMT del 23 Settembre 2010    
Quoting stormhank:
evening kman and all...just got home and was wandering could the fla panhandle possibly be affected by 95/ mathew? down the road?? Thanks for any input.


Too early to say. Let's see how it gets on thru late Friday first.
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1662. will40 01:40 AM GMT del 23 Settembre 2010    

1655. Codaflow 9:38 PM EDT on September 22, 2010

your wish will be granted
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1663. zoomiami 01:41 AM GMT del 23 Settembre 2010    
Trollville tonight -- been a while since we had one so flagrant. I was cleaning my ignore list, since I have names on it from 2007. Brings back memories -- anyone remember Lester nessman?

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1664. sunlinepr 01:41 AM GMT del 23 Settembre 2010    
95L is behaving like Karl did when it was an Invest. It would acquire convection during daytime and go to sleep at night.... Until conditions came favorable for strenthening.... into a storm....
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1665. kmanislander 01:41 AM GMT del 23 Settembre 2010    
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1666. JupiterFL 01:41 AM GMT del 23 Settembre 2010    
Quoting Floridaweathergirl:



I found it!!!!


95L doesn't have a defined COC yet so I am not really sure what you found.
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1667. Orcasystems 01:42 AM GMT del 23 Settembre 2010    
Quoting zoomiami:
Trollville tonight -- been a while since we had one so flagrant. I was cleaning my ignore list, since I have names on it from 2007. Brings back memories -- anyone remember Lester nessman?



Gasp... you are old

edit- your talking about the troll... thought you were talking about WKRP
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1668. Grothar 01:42 AM GMT del 23 Settembre 2010    
Quoting will40:

1655. Codaflow 9:38 PM EDT on September 22, 2010

your wish will be granted


He must know my mother-in-law!
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1670. xcool 01:42 AM GMT del 23 Settembre 2010    


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1671. Floridaweathergirl 01:42 AM GMT del 23 Settembre 2010    
Quoting weatherman12345:
i live in ft. lauderdale.. but inland. true it was scary especially at night. the howling wind was the worst for me. i lossed power for two weeks.



No light, no air. Hope it's breezy if Matthew decides to come our way.
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1672. AnthonyJKenn 01:42 AM GMT del 23 Settembre 2010    
Quoting quante:


18Z GFS does not show it hitting Florida. It shows it turning North and East just before Yucatan. It may not hit Florida. It may go east of Florida or West, or not survive passage over Cuba, although western part is not mountainous. Too early to say.


Actually, the 18z GFS extended out does show the storm skirting SE Florida en route to the Carolinas.

That's no guarantee of actual events, of course, but it does show exactly what weatherman566 says.


Anthony
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1673. xcool 01:43 AM GMT del 23 Settembre 2010    
btwntx08 you be okay lol
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1675. robj144 01:43 AM GMT del 23 Settembre 2010    
Quoting weatherman12345:
i live in ft. lauderdale.. but inland. true it was scary especially at night. the howling wind was the worst for me. i lossed power for two weeks.


For Wilma? Wilma came during the morning and was done by mid-day. Sure it wasn't Frances? Frances hit at night.
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1678. hurricanehunter27 01:44 AM GMT del 23 Settembre 2010    
Wow Coda that was a little much..... just noticed that he edited his comment to say fart instead of.....well you guys know what he said.
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1680. quante 01:44 AM GMT del 23 Settembre 2010    
And another point, what is shear going to be like in the gulf? Presumably much higher this time of year, than in August. This morning it was at 40 knots. Now at 20-30.

Link

So even if it makes it to Gulf, it may get torn up.

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1681. JupiterFL 01:44 AM GMT del 23 Settembre 2010    
Quoting zoomiami:
Trollville tonight -- been a while since we had one so flagrant. I was cleaning my ignore list, since I have names on it from 2007. Brings back memories -- anyone remember Lester nessman?



Now that made me laugh. I got an email from member fatolepeniz one time. I can't remember all the old ones though. Post some more!
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1682. docrod 01:44 AM GMT del 23 Settembre 2010    
Quoting Orcasystems:


Gasp... you are old


I have to raise my hand on that one too.
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1683. PcolaDan 01:44 AM GMT del 23 Settembre 2010    
Quoting Orcasystems:


Gasp... you are old

edit- your talking about the troll... thought you were talking about WKRP


There was someone on there besides Lonnie Anderson???? :)
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1685. quante 01:45 AM GMT del 23 Settembre 2010    
Quoting AnthonyJKenn:


Actually, the 18z GFS extended out does show the storm skirting SE Florida en route to the Carolinas.

That's no guarantee of actual events, of course, but it does show exactly what weatherman566 says.


Anthony


I think if you watch it frame by frame, that is a different storm that GFS spins up out of Caribbean, not 95L. But I may be wrong.
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1686. sarahjola 01:45 AM GMT del 23 Settembre 2010    
according to my local met. the high over la. will move over al/fl. in a few days. if that does happen wouldn't the not yet storm move around the high, and not into it? so if this holds true then wouldn't 95l go either to the west, or over cuba and into the Atlantic, and possibly into n.fl. or Carolina even? just asking. i will not pretend to have any real weather knowledge.
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1687. Grothar 01:45 AM GMT del 23 Settembre 2010    
Quoting zoomiami:
Trollville tonight -- been a while since we had one so flagrant. I was cleaning my ignore list, since I have names on it from 2007. Brings back memories -- anyone remember Lester nessman?



From WKRP in Cincinnati, sure!
Member Since: Luglio 17, 2009 Posts: 58 Comments: 19682
1688. robj144 01:45 AM GMT del 23 Settembre 2010    
Quoting JupiterFL:


Or if Matthew is anything like Wilma, it may in fact have two of them. of course that always leads to a rather scary situation when preparing for landfall.


Wilma had two eyes?
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1690. Floridaweathergirl 01:46 AM GMT del 23 Settembre 2010    
Quoting JupiterFL:


95L doesn't have a defined COC yet so I am not really sure what you found.


certain persons blog
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1695. JupiterFL 01:47 AM GMT del 23 Settembre 2010    
Quoting robj144:


Wilma had two eyes?


Not necessarily 2 eyes but some people believe there were 2 quasi circulations. Someone posted info on this last night but not sure who it was.
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1696. kshipre1 01:47 AM GMT del 23 Settembre 2010    
can anyone show me the long range models showing where on the west coast Matthew could potentially hit? Is the west coast showing more of a hit? or the south florida?
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1697. Wxouttacontrol 01:48 AM GMT del 23 Settembre 2010    
this loop of the 18z gfs bodes double serious trouble for south florida if it evolves this way (takes a few seconds to load)
Link
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About JeffMasters
Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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