Hurricane Helene - Cat. 3
Moderator: S2k Moderators
- cycloneye
- Admin
- Posts: 143863
- Age: 68
- Joined: Thu Oct 10, 2002 10:54 am
- Location: San Juan, Puerto Rico
http://weather.noaa.gov/weather/current/GOOY.html
Dakar,Senegal observations.The lowest pressure there was 1008 mbs early this afternoon.And the winds haved been changing directions all day.So Thunder44,I think you are right about the low off the coast now.
Dakar,Senegal observations.The lowest pressure there was 1008 mbs early this afternoon.And the winds haved been changing directions all day.So Thunder44,I think you are right about the low off the coast now.
0 likes
Visit the Caribbean-Central America Weather Thread where you can find at first post web cams,radars
and observations from Caribbean basin members Click Here
and observations from Caribbean basin members Click Here
- SouthFloridawx
- S2K Supporter
- Posts: 8345
- Age: 46
- Joined: Tue Jul 26, 2005 1:16 am
- Location: Sarasota, FL
- Contact:
Here are my thoughts on this possible developing low as the axis of this vigorous mid-level rotation wave moves offshore...
Due to fairly light shear and the vicinity, favorable mid-level anticyclonic diffluence, fairly good low-level to mid-level divergence, mild mid-level ridging support, as well as the aforementioned other mildly favorable synoptics in the graphic above (including a much more diffuse and less intrusive mid-level SAL that is decreasing to the north, northwest, and west-northwest), all of which is being indicated by the maintenance and slow consolidation of persistent convection for 24 hours which is showing signs of mild banding and consolidation in the vicinity of a possible reforming and developing low or weak LLC, this system is likely to possibly become our next INVEST - 94L - within the next 36 hours. This is all additionally supported by the ULL a few hundred miles to the north-northwest which is slowly pulling out east-northeast, with the southern portion of it's influence thus weakening to the west and west-northwest of this developing wave low, allowing for decreasing mid-level shear ahead of this wave.

Due to fairly light shear and the vicinity, favorable mid-level anticyclonic diffluence, fairly good low-level to mid-level divergence, mild mid-level ridging support, as well as the aforementioned other mildly favorable synoptics in the graphic above (including a much more diffuse and less intrusive mid-level SAL that is decreasing to the north, northwest, and west-northwest), all of which is being indicated by the maintenance and slow consolidation of persistent convection for 24 hours which is showing signs of mild banding and consolidation in the vicinity of a possible reforming and developing low or weak LLC, this system is likely to possibly become our next INVEST - 94L - within the next 36 hours. This is all additionally supported by the ULL a few hundred miles to the north-northwest which is slowly pulling out east-northeast, with the southern portion of it's influence thus weakening to the west and west-northwest of this developing wave low, allowing for decreasing mid-level shear ahead of this wave.
0 likes
- SouthFloridawx
- S2K Supporter
- Posts: 8345
- Age: 46
- Joined: Tue Jul 26, 2005 1:16 am
- Location: Sarasota, FL
- Contact:
- cycloneye
- Admin
- Posts: 143863
- Age: 68
- Joined: Thu Oct 10, 2002 10:54 am
- Location: San Juan, Puerto Rico
A 1008 MB LOW PRESSURE CENTER NEAR 12N17W IS EMERGING OFF THE
COAST OF AFRICA. DEVELOPMENT OF THIS SYSTEM IS POSSIBLE DURING
THE NEXT DAY OR TWO AS IT MOVES WESTWARD OVER THE FAR EASTERN
TROPICAL ATLANTIC. A CLUSTER OF SCATTERED MODERATE/ISOLATED
STRONG CONVECTION IS SEEN FROM 7N-10N BETWEEN 16W-24W.
8 PM Discussion.
COAST OF AFRICA. DEVELOPMENT OF THIS SYSTEM IS POSSIBLE DURING
THE NEXT DAY OR TWO AS IT MOVES WESTWARD OVER THE FAR EASTERN
TROPICAL ATLANTIC. A CLUSTER OF SCATTERED MODERATE/ISOLATED
STRONG CONVECTION IS SEEN FROM 7N-10N BETWEEN 16W-24W.
8 PM Discussion.
0 likes
Visit the Caribbean-Central America Weather Thread where you can find at first post web cams,radars
and observations from Caribbean basin members Click Here
and observations from Caribbean basin members Click Here
-
- Category 1
- Posts: 309
- Joined: Fri Aug 25, 2006 9:48 am
- Location: Severe weather-challenged Southern California
Big blob of convection just popped up, and correct me if I'm wrong, but that sucker looks to be getting fairly well-organized already:
http://www.ssd.noaa.gov/met8/eatl/loop-rb.html
http://www.ssd.noaa.gov/met8/eatl/loop-rb.html
0 likes
- SouthFloridawx
- S2K Supporter
- Posts: 8345
- Age: 46
- Joined: Tue Jul 26, 2005 1:16 am
- Location: Sarasota, FL
- Contact:
WXMAN57 perhaps you can Create the 400-700mb flow charts for this perspective low developing in the Eastern Atlantic.
Looking at the GFS ensemble maps for 00Z and 18Z it would appear that a Central Atlantic Trough is going to dip down and scoop this thing out in days 5-7 and perhaps even earlier. However the models have taken it more west than originally.

Looking at the GFS ensemble maps for 00Z and 18Z it would appear that a Central Atlantic Trough is going to dip down and scoop this thing out in days 5-7 and perhaps even earlier. However the models have taken it more west than originally.

0 likes
- HurricaneMaster_PR
- Category 2
- Posts: 795
- Joined: Tue Jul 22, 2003 6:23 pm
- Location: San Juan, Puerto Rico
TROPICAL WEATHER OUTLOOK
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1030 PM EDT MON SEP 11 2006
FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...
THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON HURRICANE
FLORENCE...LOCATED ABOUT 245 MILES NORTH-NORTHEAST OF BERMUDA...AND
ON TROPICAL STORM GORDON...LOCATED ABOUT 430 MILES NORTHEAST OF THE
LEEWARD ISLANDS.
A STRONG TROPICAL WAVE NEAR THE WEST COAST OF AFRICA IS MOVING
WESTWARD AT ABOUT 15 MPH. THIS SYSTEM HAS SOME POTENTIAL FOR
DEVELOPMENT DURING THE NEXT DAY OR TWO AS IT MOVES OVER THE FAR
EASTERN TROPICAL ATLANTIC.
ELSEWHERE...TROPICAL STORM FORMATION IS NOT EXPECTED THROUGH
WEDNESDAY.
$$
FORECASTER BLAKE/AVILA
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1030 PM EDT MON SEP 11 2006
FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...
THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON HURRICANE
FLORENCE...LOCATED ABOUT 245 MILES NORTH-NORTHEAST OF BERMUDA...AND
ON TROPICAL STORM GORDON...LOCATED ABOUT 430 MILES NORTHEAST OF THE
LEEWARD ISLANDS.
A STRONG TROPICAL WAVE NEAR THE WEST COAST OF AFRICA IS MOVING
WESTWARD AT ABOUT 15 MPH. THIS SYSTEM HAS SOME POTENTIAL FOR
DEVELOPMENT DURING THE NEXT DAY OR TWO AS IT MOVES OVER THE FAR
EASTERN TROPICAL ATLANTIC.
ELSEWHERE...TROPICAL STORM FORMATION IS NOT EXPECTED THROUGH
WEDNESDAY.
$$
FORECASTER BLAKE/AVILA
0 likes
-
- Professional-Met
- Posts: 11430
- Age: 34
- Joined: Sat Dec 24, 2005 9:00 pm
- Location: School: Florida State University (Tallahassee, FL) Home: St. Petersburg, Florida
- Contact:
- cycloneye
- Admin
- Posts: 143863
- Age: 68
- Joined: Thu Oct 10, 2002 10:54 am
- Location: San Juan, Puerto Rico
fact789 wrote:why isnt there an invest?
Because the low pressure just moved off the coast tonight,For sure invest 94L will be up at some point tommorow.
0 likes
Visit the Caribbean-Central America Weather Thread where you can find at first post web cams,radars
and observations from Caribbean basin members Click Here
and observations from Caribbean basin members Click Here
-
- Category 5
- Posts: 1249
- Joined: Wed Aug 24, 2005 9:36 pm
- Location: Jacksonville, Fla
-
- S2K Supporter
- Posts: 962
- Joined: Mon Jul 31, 2006 6:23 pm
- Location: Houston, Texas
Who is online
Users browsing this forum: No registered users and 17 guests