99L a heavy rainfall threat for Jamaica, Haiti, and Eastern Cuba

By: Dr. Jeff Masters , 2:35 PM GMT on October 21, 2012

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A tropical wave embedded in a large trough of low pressure (Invest 99L) covers a large portion of the Central Caribbean between Hispaniola and the northern coast of South America. This storm has the potential to be a dangerous rainfall threat for Haiti, Jamaica, and eastern Cuba. The disturbance is headed west at less than 5 mph, is over very warm waters of 29°C, and is in a moist environment. 99L has a large area of heavy thunderstorms that have a good degree of spin. These thunderstorms are beginning to organize into spiral bands, as seen on visible satellite loops. However, the amount of heavy thunderstorm activity is about the same as yesterday, and there are no signs of a surface circulation. An Air Force hurricane hunter aircraft is scheduled to investigate 99L this afternoon, but I expect this flight will be rescheduled for later.


Figure 1. Morning satellite image of Invest 99L.

Forecast for 99L
Wind shear is a low 5 - 10 knots, and is forecast to be in the low to moderate range, 5 - 20 knots, through Tuesday. This should allow for some steady development of 99L, and there has been a good deal of model support for 99L becoming a tropical depression by Wednesday. Steering currents favor a continued slow westward movement for 99L through Tuesday. On Wednesday, a strong trough of low pressure to the north of 99L is expected to turn the storm to the north or north-northeast, which should put 99L in the vicinity of Jamaica on Wednesday and Eastern Cuba on Thursday. By Friday, 99L should be in the Central or Eastern Bahamas. It is unclear at this point whether or not the trough pulling 99L to the north will be strong enough to pull the storm all the way out to sea to the northeast; a narrow ridge of high pressure has the potential to build in over 99L late this week and force the storm west-northwest, with a potential threat to the western Bahamas and U.S. East Coast by next weekend. In their 8 am EDT tropical weather outlook, NHC gave 99L a 70% chance of developing into a tropical cyclone by Tuesday morning. 99L will be capable of bringing heavy rains of 5 - 10 inches, with isolated amounts of up to 15 inches in mountainous areas, to Jamaica and Haiti, Monday through Wednesday. Heavy rains will begin on Tuesday in Eastern Cuba, and spread northwards into the Central and Eastern Bahamas by Wednesday.

Invest 90L in the middle Atlantic
A tropical wave (Invest 90L) about 830 miles east-northeast of the northernmost Lesser Antilles Islands is headed west-northwest at about 10 mph. The disturbance has a small amount of heavy thunderstorms, as seen on visible satellite images, and has gotten tangled up with an upper-level low pressure system. This upper-level low is providing 90L the spin it needs to become a tropical cyclone, but is also pumping cool, dry air into the disturbance, which will keep any development slow over the next few days. Wind shear is a moderate 10 - 20 knots, and is forecast to remain in the moderate range until Tuesday. This may allow for some slow development of 90L before it encounters high wind shear of 20 - 30 knots on Tuesday night through Thursday. None of the reliable computer models develop 90L into a tropical cyclone, and it's unlikely that 90L will affect any land areas. In their 8 am EDT tropical weather outlook, NHC gave 90L a 30% chance of developing into a tropical cyclone by Tuesday morning.

The next name on the list of Atlantic tropical storms for 2012 is Sandy.

Jeff Masters

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221. beell
Quoting KEEPEROFTHEGATE:
POSS T.C.F.A.
99L/INV/XX/XX
MARK
14.89N/73.69W


I see something closer to 77W, KEEP.
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Quoting JLPR2:
90L is making me go hmm....



I can see a nicer circulation at the surface with a vigorous mid level circulation. Kinda rooting for it to develop. XD
.
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Member Since: July 15, 2006 Posts: 174 Comments: 54623
ALERT ATCF MIL 99X XXX 121021120000
2012102112
14.8 284.0
14.8 281.1
100
14.7 284.5
211530
1210211530
1
WTNT21 KNGU 211530
SUBJ/TROPICAL CYCLONE FORMATION ALERT//
RMKS/1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE
WITHIN 100 NM EITHER SIDE OF A LINE FROM 14.8N 76.0W TO 14.8N 78.9W
WITHIN THE NEXT 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFY
ISSUANCE OF NUMBERED TROPICAL CYCLONE WARNINGS AT THIS TIME.
WINDS IN THE AREA ARE ESTIMATED TO BE 20 TO 25 KNOTS. METSAT
IMAGERY AT 211200Z INDICATES THAT A CIRCULATION CENTER IS LOCATED
NEAR 14.7N 75.5W. THE SYSTEM IS MOVING WESTWARD AT 07 KNOTS.
2. REMARKS: CURRENT MODEL GUIDANCE IS DEPICTING INTENSIFICATION OF
A TROPICAL WAVE LOCATED OVER THE CENTRAL CARIBBEAN SEA. AT 211200Z,
SATELLITE IMAGERY INDICATED AN AREA OF INCREASED THUNDERSTORM ACTIVITY
THAT HAS PERSISTED OVER THE LAST 24 HOURS. WARM SEA SURFACE TEMPERATURES
OF 83 TO 85 DEGREES FAHRENHEIT IN CONJUNCTION WITH A FAVORABLE UPPER AIR
ENVIRONMENT MAY ENHANCE DEVELOPMENT OF THIS SYSTEM INTO A TROPICAL CYCLONE.
3. THIS ALERT WILL BE UPGRADED TO WARNING OR REISSUED AS REQUIRED
BY 221530Z.//
9912101912 140N 690W 20
9912101918 140N 697W 20
9912102000 141N 705W 20
9912102006 143N 716W 20
9912102012 145N 725W 25
9912102018 146N 732W 25
9912102100 147N 740W 25
9912102106 147N 748W 25
9912102112 147N 755W
Member Since: July 15, 2006 Posts: 174 Comments: 54623
217. JLPR2
90L is making me go hmm....



I can see a nicer circulation at the surface with a vigorous mid level circulation. Kinda rooting for it to develop. XD

*Whoops, wrong picture, fixed it.
Member Since: September 4, 2007 Posts: 7 Comments: 8735
T.C.F.A.
99L/INV/XX/XX
MARK
14.89N/73.69W
Member Since: July 15, 2006 Posts: 174 Comments: 54623
Member Since: July 6, 2010 Posts: 113 Comments: 32338
Quoting Dakster:


I have some cheese, would you like some to go along with your whine?

How about the loss of life and people's homes?
Sooo am I suppose to get on my knees and cry?.Here I'll send a prayer..Besides according to the models your state is one of the first on the list in terms of U.S potential affect from 99L(what ever it becomes at that point).No this isn't meant to sound mean or anything..
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Quoting Dakster:


Link?


12z gfdl shifts eastward...

link to nagaps
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Quoting MississippiWx:


I could see it eventually combining with baroclinic energy coming from the CONUS and becoming a powerful extratropical cyclone over the Northeast US or out in the Atlantic.
I'm all for a hurricane type Noel track(yes that sounds selfish,but when a storm is surrounded by land it has to go somewhere).
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Quoting allancalderini:
In my birthday almost all years it rain I remember that I din`t have a party in 1998 because Mitch was leaving heavy rain to us.
I now have birthdays every four years... I have one approaching in 2014...
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Quoting hurricane23:
12z nogaps is over south florida


Link?
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12z nogaps is over south florida
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208. SLU
Two days ago the models swept 99L out to sea but they are now showing a bomb exploding off the east coast by next weekend right in time for halloween.

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Quoting allancalderini:
I think it might be renumber tomorrow like 99L can`t wait to see which will be Sandy and which one will be Tony.


As long as they are not related to King, Rita, or Wilma, I do not really care...
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Quoting washingtonian115:
Well I hope your right.Because that means birthday plans/holloween plans would be ruined!.Not to mention rain(which we don't need) and wind along with potential power outages is something I dealt with all summer and don't want to go through it again..
In my birthday almost all years it rain I remember that I din`t have a party in 1998 because Mitch was leaving heavy rain to us.
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99L is getting some convection near its center now, and the convection on the east side is expanding:

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Quoting washingtonian115:
Well I hope your right.Because that means birthday plans/holloween plans would be ruined!.Not to mention rain(which we don't need) and wind along with potential power outages is something I dealt with all summer and don't want to go through it again..


I could see it eventually combining with baroclinic energy coming from the CONUS and becoming a powerful extratropical cyclone over the Northeast US or out in the Atlantic.
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Quoting TropicalAnalystwx13:
90L is certainly organizing this afternoon, thanks to lower wind shear. I'd raise its 48-hour development chances up to 50% or 60%.

I think it might be renumber tomorrow like 99L can`t wait to see which will be Sandy and which one will be Tony.
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Quoting washingtonian115:
Well I hope your right.Because that means birthday plans/holloween plans would be ruined!.Not to mention rain(which we don't need) and wind along with potential power outages is something I dealt with all summer and don't want to go through it again..


I have some cheese, would you like some to go along with your whine?

How about the loss of life and people's homes?
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12 GFS = Perfect Storm
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Quoting MississippiWx:


Surprised you aren't saying it's going to hit you, you wishcaster. :-)

A storm moving from south to north into the Bahamas in October would climatologically have slim to no chance of hitting Florida or the SE US.
Well I hope your right.Because that means birthday plans/holloween plans would be ruined!.Not to mention rain(which we don't need) and wind along with potential power outages is something I dealt with all summer and don't want to go through it again..
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Member Since: July 12, 2007 Posts: 0 Comments: 6051
Quoting TropicalAnalystwx13:

I don't see the trough delaying long enough for the storm to make a direct hit on Florida or the Southeast United States, just a brush for them. However, the Northeast may have to pay attention as, if the trough delays enough, the northward motion it should have by the time it enters the Bahamas would bring it right into the region.


Surprised you aren't saying it's going to hit you, you wishcaster. :-)

A storm moving from south to north into the Bahamas in October would climatologically have slim to no chance of hitting Florida or the SE US.
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Quoting MAweatherboy1:
30% on 90L? Come on Berg.

TROPICAL WEATHER OUTLOOK
NWS NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT SUN OCT 21 2012

FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...

A BROAD AREA OF LOW PRESSURE...ASSOCIATED WITH A TROPICAL WAVE...IS
PRODUCING A LARGE AREA OF SHOWERS AND THUNDERSTORMS OVER THE
CENTRAL CARIBBEAN SEA. ENVIRONMENTAL CONDITIONS ARE EXPECTED TO BE
CONDUCIVE FOR THE FORMATION OF A TROPICAL DEPRESSION DURING THE
NEXT COUPLE OF DAYS...AND THIS SYSTEM HAS A HIGH CHANCE...70
PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS
AS IT MOVES SLOWLY WESTWARD AND BECOMES NEARLY STATIONARY WELL
SOUTH OF JAMAICA. HEAVY RAINS FROM THIS DISTURBANCE ARE LIKELY TO
SPREAD OVER JAMAICA...HISPANIOLA...AND EASTERN CUBA OVER THE NEXT
SEVERAL DAYS. THESE RAINS COULD PRODUCE LIFE-THREATENING FLASH
FLOODS AND MUD SLIDES...ESPECIALLY IN AREAS OF HIGH TERRAIN.

A TROPICAL WAVE INTERACTING WITH AN UPPER-LEVEL LOW IS PRODUCING A
SMALL AREA OF SHOWERS AND A FEW THUNDERSTORMS OVER THE CENTRAL
ATLANTIC ABOUT 850 MILES EAST-NORTHEAST OF THE LEEWARD ISLANDS.
ENVIRONMENTAL CONDITIONS ARE EXPECTED TO BE CONDUCIVE FOR SOME
DEVELOPMENT BEFORE UPPER-LEVEL WINDS STRENGTHEN ON TUESDAY. THIS
SYSTEM HAS A MEDIUM CHANCE...30 PERCENT...OF BECOMING A TROPICAL
CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES NORTHWESTWARD TO NORTH-
NORTHWESTWARD AT ABOUT 10 MPH.

ELSEWHERE...TROPICAL STORM FORMATION IS NOT EXPECTED DURING THE
NEXT 48 HOURS.

$$
FORECASTER BERG

It's going to be one of those storms that goes from 30% to like 90%.

Hate it when they're conservative because now, if it continues developing, the next TWO will have its percentages way up.
Member Since: July 6, 2010 Posts: 113 Comments: 32338
Quoting AztecCe:
where you at on the east coast?
Mid-atlantic washington D.C.
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TROPICAL WEATHER OUTLOOK
NWS NATIONAL HURRICANE CENTER MIAMI FL
1100 AM PDT SUN OCT 21 2012

FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE..

DISORGANIZED SHOWERS AND THUNDERSTORMS CONTINUE IN ASSOCIATION WITH
AN ELONGATED AREA OF LOW PRESSURE LOCATED A FEW HUNDRED MILES SOUTH
OF THE GULF OF TEHUANTEPEC. DEVELOPMENT...IF ANY...OF THIS SYSTEM
IS EXPECTED TO BE SLOW TO OCCUR AS IT MOVES LITTLE DURING THE NEXT
DAY OR TWO. THIS SYSTEM HAS A LOW CHANCE...10 PERCENT...OF BECOMING
A TROPICAL CYCLONE DURING THE NEXT 48 HOURS.

ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE
NEXT 48 HOURS.

$$
FORECASTER CANGIALOSI
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Quoting washingtonian115:
Ew 99L please stay away from here.What would I look like coming back on the blog saying I got affected by a storm named...Sandy?
where you at on the east coast?
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30% on 90L? Come on Berg.

TROPICAL WEATHER OUTLOOK
NWS NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT SUN OCT 21 2012

FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...

A BROAD AREA OF LOW PRESSURE...ASSOCIATED WITH A TROPICAL WAVE...IS
PRODUCING A LARGE AREA OF SHOWERS AND THUNDERSTORMS OVER THE
CENTRAL CARIBBEAN SEA. ENVIRONMENTAL CONDITIONS ARE EXPECTED TO BE
CONDUCIVE FOR THE FORMATION OF A TROPICAL DEPRESSION DURING THE
NEXT COUPLE OF DAYS...AND THIS SYSTEM HAS A HIGH CHANCE...70
PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS
AS IT MOVES SLOWLY WESTWARD AND BECOMES NEARLY STATIONARY WELL
SOUTH OF JAMAICA. HEAVY RAINS FROM THIS DISTURBANCE ARE LIKELY TO
SPREAD OVER JAMAICA...HISPANIOLA...AND EASTERN CUBA OVER THE NEXT
SEVERAL DAYS. THESE RAINS COULD PRODUCE LIFE-THREATENING FLASH
FLOODS AND MUD SLIDES...ESPECIALLY IN AREAS OF HIGH TERRAIN.

A TROPICAL WAVE INTERACTING WITH AN UPPER-LEVEL LOW IS PRODUCING A
SMALL AREA OF SHOWERS AND A FEW THUNDERSTORMS OVER THE CENTRAL
ATLANTIC ABOUT 850 MILES EAST-NORTHEAST OF THE LEEWARD ISLANDS.
ENVIRONMENTAL CONDITIONS ARE EXPECTED TO BE CONDUCIVE FOR SOME
DEVELOPMENT BEFORE UPPER-LEVEL WINDS STRENGTHEN ON TUESDAY. THIS
SYSTEM HAS A MEDIUM CHANCE...30 PERCENT...OF BECOMING A TROPICAL
CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES NORTHWESTWARD TO NORTH-
NORTHWESTWARD AT ABOUT 10 MPH.

ELSEWHERE...TROPICAL STORM FORMATION IS NOT EXPECTED DURING THE
NEXT 48 HOURS.

$$
FORECASTER BERG
Member Since: Posts: Comments:
TROPICAL WEATHER OUTLOOK
NWS NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT SUN OCT 21 2012

FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...

A BROAD AREA OF LOW PRESSURE...ASSOCIATED WITH A TROPICAL WAVE...IS
PRODUCING A LARGE AREA OF SHOWERS AND THUNDERSTORMS OVER THE
CENTRAL CARIBBEAN SEA. ENVIRONMENTAL CONDITIONS ARE EXPECTED TO BE
CONDUCIVE FOR THE FORMATION OF A TROPICAL DEPRESSION DURING THE
NEXT COUPLE OF DAYS...AND THIS SYSTEM HAS A HIGH CHANCE...70
PERCENT
...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS
AS IT MOVES SLOWLY WESTWARD AND BECOMES NEARLY STATIONARY WELL
SOUTH OF JAMAICA. HEAVY RAINS FROM THIS DISTURBANCE ARE LIKELY TO
SPREAD OVER JAMAICA...HISPANIOLA...AND EASTERN CUBA OVER THE NEXT
SEVERAL DAYS. THESE RAINS COULD PRODUCE LIFE-THREATENING FLASH
FLOODS AND MUD SLIDES...ESPECIALLY IN AREAS OF HIGH TERRAIN.

A TROPICAL WAVE INTERACTING WITH AN UPPER-LEVEL LOW IS PRODUCING A
SMALL AREA OF SHOWERS AND A FEW THUNDERSTORMS OVER THE CENTRAL
ATLANTIC ABOUT 850 MILES EAST-NORTHEAST OF THE LEEWARD ISLANDS.
ENVIRONMENTAL CONDITIONS ARE EXPECTED TO BE CONDUCIVE FOR SOME
DEVELOPMENT BEFORE UPPER-LEVEL WINDS STRENGTHEN ON TUESDAY. THIS
SYSTEM HAS A MEDIUM CHANCE...30 PERCENT...OF BECOMING A TROPICAL
CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES NORTHWESTWARD TO NORTH-
NORTHWESTWARD AT ABOUT 10 MPH.

ELSEWHERE...TROPICAL STORM FORMATION IS NOT EXPECTED DURING THE
NEXT 48 HOURS.

$$
FORECASTER BERG
Member Since: July 6, 2010 Posts: 113 Comments: 32338
Ew 99L please stay away from here.What would I look like coming back on the blog saying I got affected by a storm named...Sandy?
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Quoting Sfloridacat5:
Models will either shift east or west. It's doughtful they will stay the same.
A.Shift west - serious impacts for the East coast.
B.Shift East - some beach erosion but that's about it.
lets hope east I already ate most of our hurricane "supplies" lol
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Quoting Dakster:


Do you think the could be a Florida or East coast US land falling storm? Or just a potential brush?

I don't see the trough delaying long enough for the storm to make a direct hit on Florida or the Southeast United States, just a brush for them. However, the Northeast may have to pay attention as, if the trough delays enough, the northward motion it should have by the time it enters the Bahamas would bring it right into the region.
Member Since: July 6, 2010 Posts: 113 Comments: 32338
Quoting MAweatherboy1:

Not really. It's a small system, it's already got convection over the center. I still think people will be surprised with how strong this one will get... think Michael.
well it doesnt look THAT impressive. I think it will need a bit more
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Quoting TropicalAnalystwx13:

It has a nice structure but lacks organized, deep convection. Regardless, popcorn activity has been firing since this morning, and the system appears to be well on its way to tropical depression status. I see this being designated as early as tomorrow afternoon if convection organizes and persists (they probably won't declare it beforehand because they have recon available), and a tropical storm by Tuesday. Further strengthening should occur as the system turns northward, but land interaction with Cuba may briefly cause weakening. Once it enters the Bahamas, wind shear is low, sea surface temperatures are high, and I see 99L becoming a potent system. Category 1 is likely, in my opinion, possibly higher. Heavy rainfall will be the main threat by far, and many of the Greater Antilles may pick up half a foot or more of rain.


Do you think the could be a Florida or East coast US land falling storm? Or just a potential brush?
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New HRWF:

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today marks the last
40 days and 40 nights
of 2012 hurricane season
Member Since: July 15, 2006 Posts: 174 Comments: 54623
12z CMC shifted east:





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Quoting Dakster:
TA, Thoughts on 99l at the moment?

It has a nice structure but lacks organized, deep convection. Regardless, popcorn activity has been firing since this morning, and the system appears to be well on its way to tropical depression status. I see this being designated as early as tomorrow afternoon if convection organizes and persists (they probably won't declare it beforehand because they have recon available), and a tropical storm by Tuesday. Further strengthening should occur as the system turns northward, but land interaction with Cuba may briefly cause weakening. Once it enters the Bahamas, wind shear is low, sea surface temperatures are high, and I see 99L becoming a potent system. Category 1 is likely, in my opinion, possibly higher. Heavy rainfall will be the main threat by far, and many of the Greater Antilles may pick up half a foot or more of rain.
Member Since: July 6, 2010 Posts: 113 Comments: 32338
270

NOUS42 KNHC 211528

REPRPD

WEATHER RECONNAISSANCE FLIGHTS

CARCAH, NATIONAL HURRICANE CENTER, MIAMI, FL.

1115 AM EDT SUN 21 OCTOBER 2012

SUBJECT: TROPICAL CYCLONE PLAN OF THE DAY (TCPOD)

VALID 22/1100Z TO 23/1100Z OCTOBER 2012

TCPOD NUMBER.....12-155



I. ATLANTIC REQUIREMENTS

1. SUSPECT AREA (WESTERN CARIBBEAN)

FLIGHT ONE -- TEAL 71 FLIGHT TWO -- TEAL 72

A. 22/1800Z A. 23/1200Z

B. AFXXX 01EEA INVEST B. AFXXX 0218A CYCLONE

C. 22/1330Z C. 23/0730Z

D. 13.8N 78.5W D. 14.2N 78.6W

E. 22/1730Z TO 22/2030Z E. 23/1130Z TO 23/1400Z

F. SFC TO 10,000 FT F. SFC TO 10,000 FT



2. OUTLOOK FOR SUCCEEDING DAY.....CONTINUE 12-HRLY FIXES

IF SYSTEM DEVELOPS.

3. REMARKS: THE LOW-LEVEL INVEST MISSION FOR 21/2100Z WAS

CANCELED BY NHC AT 21/1230Z. THE 22/1200Z INVEST IN TCPOD

12-154 HAS BEEN RE-TASKED FOR 22/1800Z AS SPECIFIED ABOVE.



II. PACIFIC REQUIREMENTS

1. NEGATIVE RECONNAISSANCE REQUIREMENTS.

2. OUTLOOK FOR SUCCEEDING DAY.....NEGATIVE.



$$

SEF


Member Since: July 15, 2006 Posts: 174 Comments: 54623
Quoting AztecCe:
needs some more thunderstorms and wolla

Not really. It's a small system, it's already got convection over the center. I still think people will be surprised with how strong this one will get... think Michael.
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Quoting TropicalAnalystwx13:
90L is certainly organizing this afternoon, thanks to lower wind shear. I'd raise its 48-hour development chances up to 50% or 60%.

needs some more thunderstorms and wolla
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Models will either shift east or west. It's doughtful they will stay the same.
A.Shift west - serious impacts for the East coast.
B.Shift East - some beach erosion but that's about it.
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TWO coming up soon. I think they'll go with 70% for 99L and 60% for 90L.
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TA, Thoughts on 99l at the moment?
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90L is certainly organizing this afternoon, thanks to lower wind shear. I'd raise its 48-hour development chances up to 50% or 60%.

Member Since: July 6, 2010 Posts: 113 Comments: 32338
Quoting wxchaser97:

I wouldn't mind the season being over after Sandy and or Tony. Especially is the east coast is battered like it is shown in this run.
woa woa say what? east coast?
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Quoting Grothar:
I do not believe 97 kts are surface winds. It would be lower.






The pressure is 951mb, so 97kts is reasonable, probably higher actually.
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Quoting Tazmanian:



the recon is canceled for today


TAZ did you feel the earthquake yesterday?
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Quoting 7544:


if and when this becomes a td the cone from the nhc will be interesting to see is the plane canceled for today at 4pm yet



the recon is canceled for today
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If the GFDL pans out Halloween will be a trick alright.
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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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