Dr. Jeff Masters' WunderBlog |
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| Posted by: Dr. Jeff Masters, 7:48 PM GMT on September 01, 2009 | +3 |


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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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Will be interesting to see what the NHC says at 8.
Link
Area forecast discussion
National Weather Service Melbourne Florida
512 am EDT Wednesday Sep 2 2009
Sun-Wed...broad trough redeveloping over the ctrl-eastern Continental U.S. Will
flatten out the western portion of the middle/upper ridge over Florida. At the
surface...light Erly flow seems likely to prevail through the beginning of
next week...with probability of precipitation generally close to climatology. Main caveat west/r/T
the xtd range forecast will be evolution of T.S. "Erika" currently near
the northern Leeward Islands. Current NHC forecast places system at 24.5n
71.0w as a 45kt T.S. Sun evening...and in a fairly hostile u/l
environment. This might argue for a less coherent T.C. Than what the
usually more reliable ecm suggests...and perhaps a closer approach
to the Bahama chain. In fact...while the 00z ecm still GOES with a
recurve scenario...it does so about 3 degrees farther west (75w as
opposed to 72w). Will be something to watch through next week. As
always...please refer to official NHC forecasts/discussions on T.S.
Erika for additional information.
Does not seem even the ECMWF has a good handle on this?
South Florida IS NOT out of the woods yet.....
Its anyones guess but SC has just as much of a chance of seeing this storm as Florida. It all depends on when it turns. Could hit both or neither.
Much more in the woods than yesterday afternoon IMO.
It looked like it was on the verge of rapid intensification last night, and now, it may only be a TD. Latest vortex message:
000
URNT12 KNHC 020946
VORTEX DATA MESSAGE AL062009
A. 02/09:34:40Z
B. 16 deg 24 min N
059 deg 05 min W
C. 850 mb 1502 m
D. 30 kt
E. 042 deg 66 nm
F. 119 deg 33 kt
G. 045 deg 107 nm
H. 1009 mb
I. 15 C / 1529 m
J. 18 C / 1528 m
K. 15 C / NA
L. NA
M. NA
N. 13 / 8
O. 0.02 / 10 nm
P. AF305 0206A ERIKA OB 12
MAX FL WIND 34 KT SE QUAD 08:12:30Z
MAX FL TEMP 19 C 024 / 12 NM FROM FL CNTR
;
I noticed convection is waning again.
erika is confusing..... i can only see one center just north of guadeloupe. is this the new or old one? and where is the other centr?
Still has and ill-defined LLC
guadeloupe
Didja ever notice..that ya almost never see folks from TX, AL, MS, LA, GA, SC, or NC or the islands...get all jacked up about systems so early on?
WINDWARD ISLANDS
This is true. I wait, watch, and always prepare early. Anything can happen, and if it does, well as they say here "it aint our first rodeo, and we got generators now!"
Press,
Its mostly a Miami thing. Don't get it.
..DISORGANIZED ERIKA APPROACHING THE LEEWARD ISLANDS...A LITTLE WEAKER...
8:00 AM AST Wed Sep 2
Location: 16.5°N 59.5°W
Max sustained: 45 mph
Moving: W at 7 mph
Min pressure: 1008 mb
yep, looks like DMAX is ending. Some more thoughts: Erika looks like more of a supercell in the midwest than an organized system. And, another thing to note about the latest vortex, new center is much further south and west (near 16.5 N 59.0 W). Looks like the islands now definitely will be affected by something, and possibly PR and Hispanola.
Also, this southern relocation of the center brings it closer to the center of the anticyclone. So, assuming that Erika survives the next few hours as an organized system, it MAY come back quickly. Or, it may end up being a tropical wave soon.
Link
I am a longtime lurker here, located in Providenciales, Turks & Caicos Islands. HEre is a link to our weather station at work.
http://pwsweather.com/obs/regent.html
I'll be watching
16.5??
It was @ 16.3 yesterday afternoon
They need to check pressure south of there.
You can thank Channel "7" for that one
I'm not sure if that is true....a lot of people keep asking if it's going into the gom....
...so South florida is safe then? yippee
Never have understood why people make these kind of statements out of the blue. Just watch and learn and listen.
Yes I agree my brother, its going to get worse as the day goes on, the convection is definately expanding or the system is moving more in our direction,a bad day for the start of school
Center Fix Coordinates: 16°24'N 59°27'W (16.4N 59.45W)
~143 miles E of Guadeloupe.
KM/HR...WITH HIGHER GUSTS. LITTLE CHANGE IN STRENGTH IS EXPECTED
TODAY ALTHOUGH SOME RESTRENGTHENING IS POSSIBLE TOMORROW.
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 120 MILES...195
KM...MAINLY TO THE NORTHEAST OF THE CENTER.
AN AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT RECENTLY REPORTED A
MINIMUM CENTRAL PRESSURE OF 1008 MB...29.77 INCHES.
yea...most broad strokes comments aren't entirely true...but there is some truth to it...
West Palm news last night @ 11 said "New Model Runs YOU May Need To Be Concerned About" gimme a break lol, it's over a week away.
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