MikeC
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8:30AM EDT Monday, 27 September 2010
There are currently no active tropical cyclones in the Atlantic, as the last advisories were issued on Matthew and Lisa yesterday.
The area in the West Caribbean (in particular an area forming southeast of Cancun) will need to be monitored by those in the western Caribbean and Florida, but looks mostly like a very heavy rain maker. It really depends on how organized it gets before moving out and interacting with the cold front approaching it'll likely become a sheared system with most of the energy spread eastward. This is still not an invest and in a very complex pattern it is still too soon to say much beyond that.
The area has not yet been designated as an official "Invest" area, so the usual model plot suites are not currently available. Global models (like , Euro) will provide some. It's likely that it will become an area later today.
West Caribbean IR/Rainbow Satellite Recording / Full Storm Satellite Loop
Western Caribbean/Storm (Late Sept 2010) Water Vapor Satellite Recording / Full Storm Satellite Loop
Western Caribbean (Late Sept 2010) Visible Satellite Recording
3:15PM EDT Sunday, 26 September 2010
An area of disturbed weather in the western caribbean, left from the wake of Matthew has a chance to form this week, and may be the system that some models were depicting a few days ago as possibly affecting Florida late this week.
There currently is a 10% chance for development within the next few days. IT currently is not being tracked as an invest area, but may tomorrow. This is an area that could give us quite a bit of rain in Florida, and may be one of several for October.
More to come on these systems later. See The forecast lounge for informal discussion of the system.
The last advisory on Matthew was issued at 11 AM This morning. Lisa is nearing it's end as well.
12:10PM EDT Saturday, 25 September 2010
Tropical Storm Matthew is briefly over water again before another landfall in Belize, the center moved a bit further north than expected overnight. The official forecast still takes it inland to mostly rain itself out and slow down, but the storm still is moving at a fairly brisk pace.
11:00AM EDT Friday, 24 September 2010
The new forecast from the National Hurricane Center takes Matthew inland quickly, never getting to Hurricane Strength and then falling apart over the Yucatan, and raining itself out. Based on the fast Westward motion this morning, this is quickly becoming the most likely scenario.
7:40AM EDT Friday, 24 September 2010 :?: :?:
Anyone who says they know where Matthew is going long term is probably lying. This system is entering into a very complex pattern, and lack of steering currents makes it worse. The most probable outcome now is that it clips the Nicaragua/Honduran coastlines as a hurricane, then makes landfall as a hurricane and then basically stops as the steering currents basically disappear, and dumps a tremendous amount of probably flooding rains along Belize and the Yucatan.
After this, it just gets nearly impossible to make sense of and is completely lounge territory. But I'll attempt to, the systtem stays around the Yucatan, may slip into the Bay of Campeche or back into the Western Caribbean, but will basically meander around until something kicks it out, or rains itself out over land. Another possible system in the Caribbean develops which keeps it mixed up even more, and may be actually Matthew, and then turns it more northeastward toward southwest Florida.
The models have been changing wildly between each run for the past few days, so confidence for past 3 days or so is extremely low. The best guess is the 's current forecast track. The 's track is a split between the model camps (One being more west, the other moving it more northeast toward western Cuba/Florida)
Only slightly more likely is the rain out over the Yucatan as moving in and out, or bouncing off Belize and northeast.
Those in Belize and the Yucatan will want to watch this system very Close, and possibly find themselves in a long period of incredible rainfall. Those in the hurricane Warning Area will want to prepare for a hurricane. Those elsewhere in the Eastern Gulf will just want to keep watch on it to see where Matthew goes (or doesn't go) over the week.
4:40PM EDT 23 September 2010
TD#15 has been upgraded to Tropical Storm Matthew.
2PM EDT 23 September 2010
Tropical Depression Fifteen forms in the Caribbean, Tropical Storm Warnings up for Nicaragua and Honduras.
The current forecast track takes it over coastal Honduras and forms into a hurricane off of Belize. It then landfalls in Belize and begins to curve more northeast.
7AM EDT 23 September 2010
Low confidence is probably something you will hear a lot with the wave in the Caribbean. It's usually not a good idea to hype or conjecture too much about storms that have not developed, and this one in particular.
The wave (95L) is slowly organizing and still looks most likely to form Friday or Saturday. Nicaragua and Honduras need to watch because they will be the ones likely to see the first effects from the storm.
Where the confusion lies is partly due to an upper level low that is cut off, which complicates the track. Some of the global models turn it north and northeast (toward Florida), but differ on how far west (or inland) it gets into Central America. There is a good chance that it will be over land first, and then meander a bit before turning generally north. To say it will affect Florida is impossible right now other than to say it's worth watching for the eastern Gulf, but it does not deserve any hype at the moment.
Depending exactly on the conditions ahead, and if it goes over land or not will determine what type of system, and at what strength it is.
Really not much has changed since yesterday, those in Honduras and Nicaragua need to watch the system closely, and Central America and the Yucatan will likely want to watch it as well. Those in the Central and Eastern Gulf of Mexico will want to check back in a few days to see what track becomes more likely.
Original Update
Tropical Storm Lisa is meandering in the Eastern Atlantic and probably will be around for quite a while, odds keep it out to sea the entire time.
The last advisory on Igor was issued Yesterday and is no longer being tracked. Igor was fairly strong in Newfoundland.
The wave in the eastern Caribbean (95L) continues to be the one to watch into next week. Odds favor the system getting close or moving into Nicaragua/Honduras (may or may not be a full storm by then) and possibly curving northward potentially putting Central and Eastern Gulf coasts at risk.
Likelihood of it forming into a hurricane is fairly high, it's questionable if it can do that before Honduras/Nicaragua though, or after. Depends on the next few days. If it forms, the most likely time it would form is Friday or Saturday. If things persist more, it could be sooner than that.
The huge uncertainty right now is if and when a turn to the north happens before it gets into the heart of Central America or the Yucatan. If it does not, the risk to the Gulf increase, if it does, then it will mean tremendous amounts of rainfall for Central America.
Those in Honduras and Nicaragua will want to keep a close watch on the system, and those in the Yucatan, and Central Eastern Gulf will want to watch for trends to see what eventually occurs with this.
As the wave has not yet developed into a tropical system, things can change wildly, and models (Especially intensity models) are not all that reliable until it does. Even when it does you have to see the trends to find any model biases that may exist.
Long range discussion can be found in the Forecast Lounge.
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danielw
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Bouys in the Eastern Caribbean are reporting wind speeds near 25 kts and wind gusts above tropical storm force this morning.
Buoy 42059 Max Winds for the past hour
9:30 am E ( 97 deg ) 29.9 kts sustained
9:24 am E ( 100 deg ) 42.7 kts peak gust
Atmospheric Pressure (PRES): 29.88 in
http://www.ndbc.noaa.gov/station_page.php?station=42059
Bouy 42060 Eastern Caribbean Buoy
9:30 am ENE ( 66 deg ) 23.7 kts
9:22 am ENE ( 60 deg ) 29.1 kts
Atmospheric Pressure (PRES): 29.91 in
http://www.ndbc.noaa.gov/station_page.php?station=42060
Edited by danielw (Wed Sep 22 2010 01:45 PM)
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weathernet
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Though very early yet, first a.m. satellite does not show too much has changed overnight. Convection appears to have ramped up but appears fairly linnear for the most part. Nice anticyclone still to 95L's west would seem to provide a more conducive environment to develop perhaps tomorrow or more likely on Saturday.
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Rasvar
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It is still pretty unorganized but in the last few frames of the recent loops, it does appear that some rotation of the system is starting. I don't think there is any closed circulation yet. Maybe in another 12 to 24 hours this will be an actual system. I am looking forward to getting some better data into the models on this system. It seems to be a real tossup as to what is going to happen with this system.
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danielw
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Based on the last few frames, ending at 1415Z
I would think that it meets TD criteria on the satellite photos. Based on curvature and increase in convection.
I'll have to check the surface winds.
Latest Visible below:
http://www.meteo.psu.edu/ewall/SATATL_FLOAT2/vis0.gif
Edited by danielw (Thu Sep 23 2010 03:31 PM)
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M.A.
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I agree Daniel. From the looks of the latest visible sat, you can clearly see a rotation and convection is building. I would be suprised if it isn't upgraded before the 5pm . Bouy 42057 currently has sustained ESE winds of 25.3 knts.
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MikeC
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Recon found a closed center, and put out a vortex message, so it looks like it'll be at least a depression soon.
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danielw
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I see some flight level winds that could/ should equate to a surface wind of Tropical Storm force criteria. It might be a stretch, but it wouldn't be the first storm that went straight to TS this year.
13.8N/ 75.6W for center.
Edited by danielw (Thu Sep 23 2010 04:45 PM)
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Storm Hunter
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Pkg should be out soon for TD!
DATA FROM AN AIR FORCE RECONNAISSANCE PLANE INVESTIGATING THE AREA
OF LOW PRESSURE IN THE SOUTHWESTERN CARIBBEAN SEA INDICATE THAT A
TROPICAL DEPRESSION HAS FORMED. THE National Hurricane Center WILL
ISSUE A SPECIAL ADVISORY AT 2 PM EDT TODAY. THERE IS A HIGH
CHANCE...100 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE
DURING THE NEXT 48 HOURS.
-------------------- www.Stormhunter7.com ***see my flight into Hurricane Ike ***
Wx Data: KFLPANAM23 / CW8771
2012== 23/10/9/5 sys/strms/hurr/majh
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Joeyfl
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Tropical depression 15 is likely to be Matthew later today or tonight. Currently track is towards the northern coast of Nicaragua and then up the coast of Belize and Yucatan. Iam sure there will be plenty of shifts with this storm with respects to the track as models are not in good agreement on this one. Looks like its going to slow down in about 24 hours and remain moving slow through 120 hrs. Almost no shear and extremely warm waters in the Caribbean. This needs to be watched closely. has been the most consistent so far to some extent.
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danielw
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WTNT45 KNHC 232051 (4:51pm EDT)
TCDAT5
TROPICAL STORM MATTHEW DISCUSSION NUMBER 2
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL152010
500 PM EDT THU SEP 23 2010
AN AIR FORCE RESERVE RECONNAISSANCE AIRCRAFT INVESTIGATING THE
CYCLONE FOUND 42-KT FLIGHT-LEVEL WINDS AT ABOUT 1500 FT IN THE
NORTHEAST QUADRANT ON ITS OUTBOUND LEG. THAT WIND SPEED WOULD
NORMALLY EQUATE TO ABOUT 34 KT AT THE SURFACE. ALSO...THERE WERE
SEVERAL BELIEVABLE SFMR SURFACE WINDS OF 35-37 KT IN THAT AREA.
SINCE THOSE WIND REPORTS...CONVECTIVE BANDING HAS CONTINUED TO
INCREASE AND BECOME BETTER ORGANIZED..AND THE DEPRESSION HAS BEEN
UPGRADED TO TROPICAL STORM MATTHEW.
SUMMARY OF 500 PM EDT...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...14.0N 76.9W
ABOUT 435 MI...700 KM E OF PUERTO CABEZAS NICARAGUA
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/HR
PRESENT MOVEMENT...W OR 280 DEGREES AT 16 MPH...26 KM/HR
MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES
Edited by danielw (Thu Sep 23 2010 09:37 PM)
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WesnWylie
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Looking @ the latest vis. satellite loop, it appears that Matthew is still intensifying. I have a feeling that its winds will be around 60 mph by the 10:00 p.m. CDT update.
On a side note, the 18Z is showing the possibility of up to three systems in the Caribbean/Gulf of Mexico in 3 or 4 days. I know this scenario is not likely, but has there ever been more than two systems in the Caribbean and GOM at a given time?
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2011 Systems: 10/01/01
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scottsvb
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Matthew is a complex situation. He will move inland in 36hrs or so in Nicaragua-Honduras boarder near 15N and brush the N coast and weaken to a TD near Belieze. After that.. most bests are off until we find out what is really going to happen downstream with the trough digging down and if another low pressure forms further east. Probably wont be until Sunday 24hrs after landfall will we get a better picture or continues agreements between the and on what might form/happen
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berrywr
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Quote:
Matthew is a complex situation. He will move inland in 36hrs or so in Nicaragua-Honduras boarder near 15N and brush the N coast and weaken to a TD near Belieze. After that.. most bests are off until we find out what is really going to happen downstream with the trough digging down and if another low pressure forms further east. Probably wont be until Sunday 24hrs after landfall will we get a better picture or continues agreements between the and on what might form/happen
You made my life easy tonight....I've looked at the 24/00Z package this evening...nothing like a bag full of marbles being blown up and sent no matter which way. appears to be showing two distinct systems in the long range and if Matthew is anything like Karl which actually deepened and strengthened while over land; Matthew should remain a distinct cyclone for the duration. The evolving and future shortwave will deepen and become a rather strong cutoff low and slowly exit stage northeast but not before remaining in the mid-South for a couple of days. A pair of ridges, west and over the Atlantic and trough over the east will set the stage for a COL and by definition a very weak steering pattern for the cyclone. Stay tune....
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"Survived Trigonometry and Calculus I"
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OrlandoDan
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Deep convection has reeally intensified overnight. It will be interesteing. is having fits with the forecast in the 0500 ET advisory.
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MikeC
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We're starting something new by recording Floater Images (Rainbow) for Matthew starting now. The idea will be to record start to finish all tracked invests or storms going forward. (Excluding Lisa)
Matthew (2010) Floater Satellite Recording
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Thunderbird12
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As indicated in the latest advisory, Matthew's bark is worse than its bite right now. Satellite imagery looks impressive at first blush, but the convection is not centered over the system and recon has only found a relatively weak tropical storm. It is running out of real estate and isn't likely to intensify much more before landfall (unless it changes direction and stays near or over water). It will still be a very prolific rain producer in any case.
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danielw
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Product: Air Force Vortex Message (URNT12 KNHC)
Transmitted: 24th day of the month at 15:45Z
Aircraft: Air Force Aircraft (Last 3 digits of the tail number are 309)
Storm Number & Year: 15L in 2010
Storm Name: Matthew (flight in the North Atlantic basin)
Mission Number: 2
Observation Number: 17
A. Time of Center Fix: 24th day of the month at 15:15:50Z
B. Center Fix Coordinates: 14°30'N 82°10'W (14.5N 82.1667W)
B. Center Fix Location: 336 miles (541 km) to the S (189°) from George Town, Cayman Islands (GBR).
C. Minimum Height at Standard Level: 1,425m (4,675ft) at 850mb
D & E. Estimated (by SFMR or visually) Maximum Surface Wind: Not Available
F. Maximum Flight Level Wind Inbound: From 253° at 34kts (From the WSW at ~ 39.1mph)
G. Location of Maximum Flight Level Wind Inbound: 15 nautical miles (17 statute miles) to the SW (217°) of center fix
H. Minimum Sea Level Pressure: 1002mb (29.59 inHg) - Extrapolated
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 15°C (59°F) at a pressure alt. of 1,528m (5,013ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 20°C (68°F) at a pressure alt. of 1,525m (5,003ft)
K. Dewpoint Temp (collected at same location as temp inside eye): 5°C (41°F)
K. Sea Surface Temp (collected at same location as temp inside eye): Not Available
L. Eye Character: Not Available
M. Eye Shape: Not Available
N. Fix Determined By: Penetration and Wind
N. Fix Level: 850mb
O. Navigation Fix Accuracy: 0.02 nautical miles
O. Meteorological Accuracy: 1 nautical mile
Remarks Section:
Maximum Flight Level Wind Outbound: 55kts (~ 63.3mph) in the northeast quadrant at 15:30:10Z
Sea Level Pressure Extrapolation From: 850mb
Maximum Flight Level Temp: 22°C (72°F) which was observed 10 nautical miles (12 statute miles) to the NE (34°) from the flight level center
Those number are out of normal alignment. Pressure is 1002mb. Roughly good for 55kt flight level wind.
The center temperatures are consistant with a near major hurricane. Although there is no reported eye. They are showing a 68F inside the center with a dewpoint of 41F. A 27 degree spread. Haven't seen anything like that in a while.
Something is working right inside the storm even though it isn't 100%.
Also note on the satellite visible imagery a large area of clouds to the east of Matthew, just south of Haiti. I would think the lee of the storm should be a bit more clearer. And this area is just close enough to be the number two system in the Caribbean.
Below is a part of 2005's Major Hurricane Vortex report, near the same area, at maximum intensity of 193mph flight level wind.
(Difference of 5000 feet of altitude also. Matthew's Vortex was at 5000 feet. 's report here is at 10,000 feet. The temp dewpoint spread is nearly the same.)
H. Minimum Sea Level Pressure: 884mb (26.10 inHg)
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 10°C (50°F) at a pressure alt. of 3,073m (10,082ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 24°C (75°F) at a pressure alt. of 3,043m (9,984ft)
K. Dewpoint Temp (collected at same location as temp inside eye): 10°C (50°F)
Maximum Flight Level Wind: 168kts (~ 193.3mph) in the southeast quadrant at 6:10:20Z
http://www.tropicalatlantic.com/recon/ar...&mission=07
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MikeC
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Recording West Caribbean Water Vapor loop for the Matthew/Possible Other System conditions
West Carib WV Late Sept Satellite Recording
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cieldumort
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Impressive sustained and gusts for so far from the coc, which is also now well inland: station 42057.
Matthew appears to be another 2010 system that is holding its own while traversing land. Not one of those systems to quickly write off simply because it has now pushed well inland, IMHO, if just for the simple fact that it is holding its own while well inland.. and also for the fact that steering currents suggest a distinct possibility of Matthew, or whatever may be left of him, reemerging in the Caribbean or GOM.
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