Dr. Jeff Masters' WunderBlog |
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| Posted by: Dr. Jeff Masters, 7:25 PM GMT on September 28, 2010 | +6 |



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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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ABNT20 KNHC 282347
TWOAT
TROPICAL WEATHER OUTLOOK
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
800 PM EDT TUE SEP 28 2010
FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...
THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON TROPICAL
DEPRESSION SIXTEEN...LOCATED ABOUT 110 MILES SOUTH-SOUTHEAST OF
HAVANA CUBA.
A TROPICAL WAVE OVER THE CENTRAL ATLANTIC LOCATED ABOUT 1210 MILES
EAST OF THE WINDWARD ISLANDS IS PRODUCING LIMITED SHOWERS AND
THUNDERSTORMS. DEVELOPMENT...IF ANY...OF THIS SYSTEM IS EXPECTED
TO BE SLOW TO OCCUR AS IT MOVES WESTWARD TO WEST-NORTHWESTWARD AT 15
TO 20 MPH. THERE IS A LOW CHANCE...10 PERCENT...OF THIS SYSTEM
BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS.
ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE
NEXT 48 HOURS.
PUBLIC ADVISORIES ON TROPICAL DEPRESSION SIXTEEN ARE ISSUED UNDER
WMO HEADER WTNT31 KNHC AND UNDER AWIPS HEADER MIATCPAT1.
FORECAST/ADVISORIES ON TROPICAL DEPRESSION SIXTEEN ARE ISSUED UNDER
WMO HEADER WTNT21 KNHC AND UNDER AWIPS HEADER MIATCMAT1.
$$
FORECASTER ROBERTS/BEVEN
was down there Saturday night....went to Legends In Concert
Hi neighbor:0)
Yes, it nailed Matthew. How many did it predict that didn't happen?
I'm not only referring to those few runs. It has shown waaaay more storms than we have seen. Unless one is employing selective memory, that cannot be denied.
Key West, 29.58 in (Falling).
Big Pine Key, 29.45 in (Falling).
Plantation Key, 29.57 in (Falling)
I remember those days of hoping but I usually knew when school was in or out fairly logically. There is no shot of it being closed just go to school and enjoy the fact that you won't be inside your home board out of your mind.
My parents had a rule only in effect during tropical systems. All "storm days" I was not allowed to play with my friends. Since it was usually 2 days it was not the end of the world. They made an exception with Katrina and Wilma. I am happy they stopped when I was 16 though.
Spot on the money, imho, as always. Definetly worth watching. Thanks for your efforts.
Does that mean that we will finally have TS Nicole by the 8PM advisory?? Or, will they wait until 11 PM??
Anthony
Quick question, do not take offense to it. Why are you posting again?
TUESDAY 6:30 PM
WHAT????
How is it the pressure is listed at 999 mb for the depression, yet there are two stations on either side of the supposed center with 998 mb pressures?
This is going to be an ugly storm, especially for N Carolina and the Va capes as far as wind... perhaps even up to New England, and inland sections from SC to Pa and to western New England. The european 10 meter wind gust chart, available on your pro site menu, has 50 kt gusts on the NC coast Thursday afternoon! The 66 hour has widespread 45 kt wind gusts Thursday night from The Delmarva to western and southern New England! That wind, coming from the south or southeast, would lead to power outages in these areas since the trees are loaded with leaves and lean into that wind.. While you and I can lean into the wind and perhaps fight it better, trees loaded with leaves act almost as a kite and they are easier to lift. The classic example was Tropical storm David in 1979.. with wind gusts about half as strong as Gloria in 1985, more tree damage was done in David than Gloria!
Also on your pro site.. European precip amounts with a swath of heavy rains ( over 3 inches, and locally to 6) in the areas described above.
The real problem here, and it may not be a problem at all, is what happens if the storm USES the upper feature to deepen it east of the southeast coast before landfall. The model assumption is the energy gets stretched out, but if this suddenly bundles and feeds back, we would get this to be a stronger TS for Florida and east of Florida. The influx of non tropical energy to the system would then deepen it initially and with the system moving north quickly, instead of that energy then burying the storm, it would allow it to intensify. Now let me be clear.. a stronger storm would get WEAKENED by the same set of conditions, because the conditions that made it strong in the first place would be changed... Its the argument I have made before about a 250 lb man being put on 2000 calorie diet.. he loses weight, but a 100 lb man ( weaker storm) put on a 2000 calorie diet may gain weight ( get stronger). The threat here is we are looking at a storm that could have gusts as high as hurricane force on the NC coast... no matter how the hatch it boys play it.
I have a feeling that this is a fiasco in the making.. a storm of non tropical status.. from the tropics.. doing the most damage of the season.. so far.. Heh, its not like it hasnt happened before. This isnt north of the Azores with 71 degree water, you know.
By the way.. if this gets named ( Nicole) I believe it will be the 2cnd highest total (14) , tied with 1995, for the end of September
thanks for reading, ciao for now ****
No TS Nicole yet.
And the EURO agrees LOL!
It says no show till it is almost at the Antilles.
The Little Cayman Research Bouy (LCIY2) recorded 998 mb at 5:26 EDT and falling. Hasn't updated since. Winds weren't all that impressive (14 kts gusting to 19) but it's getting the pressure drop
At 35mph? TD
Southern California Edison says more than 27,000 of its customers were without power Tuesday morning, mainly in Orange and Los Angeles counties. Most were without power for more than 16 hours.
The Los Angeles Department of Water and Power said another 15,000 customers were without power in Los Angeles.
Several schools were also said to be closed Tuesday due to a lack of power.
No deaths linked to the heat were reported, but coroner's investigators were trying to determine if the weather played a role in the death of award-winning film editor Sally Menke, 56, whose body was found Tuesday after she went hiking in Griffith Park the previous day. She worked on such movies as "Pulp Fiction," "Kill Bill" and "Jackie Brown."
The Los Angeles Fire Department reported the heat may have contributed to a surge in calls requesting ambulances and other emergency responses, which were up 43 percent Monday over normal activity. The agency also had the highest amount of medical transports in its history.
Personally, I prefer the models developed through "squirrel-casting" but the method remains untested for some reason :)
I'm wondering with the western jog in the track, if Pinellas County is just going to get squalls out of this system or if we should get that bimini and foresail down below...hmmm.
Good evening btw.
I figured the pronunciation in 20 seconds, I'm so proud of myself.
WUMail:0)
Hi. So far, since it's sheared and right-loaded, not more than blustery winds with some showers. The obligatory nod to, "if things don't change unexpectedly".
Evenin'
There was some discussion earlier about the westward trend - seemed to make sense. They were talking about the front pulling back.
Personally, I could stand to have it remain right where it is for a while. This low humidity and cool temp thing is kinda nice. Haven't run the AC in over 24 hours now.
Monsoon Depression:
The term has gained ascendancy in use to refer to a broad tropical cyclonic circulation characterized by 1) its large size, where the outermost closed isobar may have a diameter on the order of 600 n mi (1000 km); 2) a loosely organized cluster of deep convective elements, which may form an elongated band of deep convection in the east semicircle; 3) a low- level wind distribution that features a 100 n mi (200 km) diameter light-wind core, which may be surrounded by a band of gales or contain a highly asymmetric wind field; and 4) a lack of a distinct cloud system center. Most monsoon depressions that develop in the western North Pacific eventually acquire persistent central convection and accelerated core winds, marking their transitions into conventional tropical cyclones...
...it has a similar structure as an Atlantic tropical depression, except its origin is within the monsoon trough, it is usually larger and it is strongest above the surface...
Link
from its previous position
Invest96L : NHC-ATCF
27Sep 12pmGMT - - 18.5n85.5w - - 25knots -- 1003mb - - NHC-ATCF
27Sep 06pmGMT - - 19.0n84.7w - - 25knots -- 1003mb - - NHC-ATCF
28Sep 12amGMT - - 19.4n84.1w - - 25knots -- 1003mb - - NHC-ATCF
28Sep 06amGMT - - 19.8n83.5w - - 30knots -- 1003mb - - NHC-ATCF
28Sep 12pmGMT - - 20.4n83.0w - - 30knots -- 1001mb - - NHC-ATCF
25knots=~28.8mph=46.3km/h __ 30knots=~34.5mph=~55.6km/h
96L becomes TD.16
28Sep 03pmGMT - - 20.6n82.5w - - 35mph - - - 1001mb - - NHC.Adv.#1
28Sep 06pmGMT - - 20.9n82.5w - - 35mph - - - 1000mb - - #1A
28Sep 09pmGMT - - 21.5n82.4w - - 35mph - - - - 999mb - - #2
29Sep 12amGMT - - 21.4n82.0w - - 35mph - - - - 997mb - - #2A
35mph=~56.4km/h
Copy &paste 18.5n85.5w, 19.0n84.7w, 19.4n84.1w, 19.8n83.5w, 20.4n83.0w-20.6n82.5w, 20.6n82.5w-20.9n82.5w, 20.9n82.5w-21.5n82.4w, 21.5n82.4w-21.4n82.0w, ctm, hav, pot into the GreatCircleMapper for a look at the last 12*hours.
And possibly up along the Mid-Atlantic coastline Northward.
I love a double negative.
That track sucks for us in coastal NC. On top of the 8+ inches we got yesterday, we get to look forward to another 8+ inches when Nicole strolls by. Anyone have any estimates on potential storm surges for our south-facing beaches and inlets?
Well, we're up north right now enjoying the fall regalia, but all of our friends and neighbors are lovin' the lower temps/humidity down there. Looks to be a huge amount of rain for some though. Sheesh!
the local authorities here in Charleston, SC seem to agree and have been aligning resources.
Didnt realize that JB thinks the same. I dont listen to nor like the guy..LOL
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