Dr. Jeff Masters' WunderBlog

New Caribbean disturbance 93L a major concern; flooding in Asia kills over 200
Posted by: Dr. Jeff Masters, 14:50 GMT le 21 juin 2010 +6
A concentrated region of intense thunderstorms associated with a tropical wave has developed in the central Caribbean, a few hundred miles south of Puerto Rico. This disturbance was designated Invest 93L by NHC this morning, and has the best chance to become Tropical Storm Alex of any system we've seen so far this year. The disturbance is located near Buoy 42059, and this buoy has been reporting winds of 5 - 15 knots this morning. So far, pressures are not falling. Water vapor satellite loops show that 93L is embedded in a large region of moist air. Some dry continental air from North America is over the western Caribbean, but this dry air is too far away to interfere with development today and Tuesday. Wind shear is a low 5 - 10 knots. The high wind shear associated with the strong winds of the subtropical jet stream are over the northern Caribbean, too far north to interfere with development. Sea Surface Temperatures are plenty warm, a record 29 - 30°C. The Madden-Julian oscillation currently favors upward motion over the Caribbean, which will act to increase the chances of tropical storm formation this week. The Madden-Julian oscillation is a pattern of enhanced rainfall that travels along the Equator from west to east. The pattern has a wet phase with large-scale rising air and enhanced thunderstorm activity, followed by a dry phase with large-scale sinking air and suppressed thunderstorm activity. Each cycle lasts approximately 30 - 60 days. When the Madden-Julian oscillation is in its wet phase over a hurricane-prone region, the chances for tropical storm activity are greatly increased. The only negative for 93L would seem to be the lack of spin; the University of Wisconsin 850 mb relative vorticity analysis is showing only meager amounts of spin at 850 mb (roughly 5,000 feet in altitude.)


Figure 1. Morning visible satellite image of the central Caribbean disturbance 93L.

Forecast for 93L
NHC is giving 93L a 20% chance of developing into a tropical depression by Wednesday morning, which is a reasonable forecast. With wind shear expected to drop to low values less than 10 knots over the central and western Caribbean this week (Figure 2), I don't see any major impediments to the storm becoming a tropical depression by Friday. The ECMWF model is the most aggressive in developing this system, taking it into the Gulf of Mexico as a hurricane next week. The NOGAPS model keeps the storm weak and farther south, predicting that 93L will bring heavy rains to northern Honduras as a tropical disturbance or tropical depression on Friday and Saturday. The GFS model does not develop 93L. Expect 93L to bring flooding rains of 3 - 6 inches to Jamaica, eastern Cuba, and extreme southwestern Haiti on Wednesday. These rains will spread to the Cayman Islands and central Cuba by Thursday.


Figure 2. Predicted wind shear for Friday, June 25, as forecast by this morning's 2am EDT run of the GFS model. Shear is given in meters per second; multiply by about two to convert to knots. Low wind shear values less than 6 m/s (12 knots) are predicted for much of the Western Caribbean this week.

Elsewhere in the tropics
The tropical wave (92L) that brought heavy rains of 2 - 5 inches to Puerto Rico on Saturday has weakened and is no longer a threat to bring flooding rains to the Caribbean.

Floods in China and Burma kill over 200
The deadliest and most destructive weather-related disaster on the planet so far this year is occurring in southern China and northern Burma, where a week of heavy rains has caused flooding that has claimed over 200 lives. The death toll stands at 175 in China and 63 in Burma, with more than 100 people still missing in China. Damage so far in China has been estimated at $4.3 billion.


Figure 3. Tree branches hung on a bridge at Taining County, southeast China's Fujian Province, June 19, 2010. Taining recorded 225 mm (9 inches) of rain in six hours on Friday. Image credit: Xinhua/Jiang Kehong.

Montana tornado rips roof off entertainment complex
A EF-2 tornado with winds of at least 100 mph ripped the roof of an entertainment complex in Billings, Montana on Sunday, causing up to $15 million in damage. No injuries were reported. It was the strongest tornado to hit the Billings area since 1958.


Figure 4. Video of the Billings tornado shows an impressive debris cloud (and a few expletives not deleted!) The clear slot on the right of the tornado is likely associated with the parent thunderstorm's rear flank downdraft.

Wind and ocean current forecast for the BP oil disaster
Southeast to east winds less than 10 knots will blow in the northern Gulf of Mexico today through Friday, according to the latest marine forecast from NOAA. The resulting weak ocean currents should cause little motion of the oil slick, according to the latest trajectory forecasts from NOAA and the State of Louisiana. The long range outlook is uncertain, as the tropical wave over the central Caribbean could enter the Gulf of Mexico early next week and develop into a tropical storm.

Resources for the BP oil disaster
My post, What a hurricane would do the Deepwater Horizon oil spill
My post on the Southwest Florida "Forbidden Zone" where surface oil will rarely go
My post on what oil might do to a hurricane
NOAA's interactive mapping tool allows one to overlay wind and ocean current forecasts, oil locations, etc.
Gulf Oil Blog from the UGA Department of Marine Sciences
Oil Spill Academic Task Force
University of South Florida Ocean Circulation Group oil spill forecasts
ROFFS Deepwater Horizon page
Synthetic Aperture Radar (SAR) imagery from the University of Miami

Jeff Masters
Billings, MT tornado (StormTeam)
Photo taken from approx. 5-6 miles east. Video here: http://www.youtube.com/watch?v=8429C0-LSlo
Billings, MT tornado
Categories: Flood Hurricane
  Permalink | A A A
Reader Comments
Display: 0, 50, 100, 200 Sort: Newest First - Order Posted
Viewing: 651 - 701

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79Blog Index

651. StormGoddess 17:37 GMT le 21 juin 2010    
Quoting leelee75k:
Thanks patrap, that's exactly the type of things I'm looking for, didn't think of either one of those to have.

anyone else?

Having a piece of flint to start a fire to stay warm (and cook with if you don't have propane) is always a great thing. Also, if you need water right away and don't have any stored or you have lost your supplies for one reason or another, the tablets to sterilize water are good to have. Also to have a little backpack or something with all your supplies together in one place in case you have to evacuate all of a sudden is always useful as well.
Member Since: 10 juin 2010 Posts: 6 Comments: 570
652. hydrus 17:37 GMT le 21 juin 2010    
Quoting TampaTom:


Look at me. Do I look upset to you?
Ya luk like da holi terrer.:)
Member Since: 27 septembre 2007 Posts: 1 Comments: 14303
653. Levi32 17:38 GMT le 21 juin 2010    
Quoting reedzone:
NHC has the floater positioned on 93L, only problem is, it says 92L lol.. Looking closely at the visible, I see a small spin 14.2N 68.5W. I believe that is where the LLC might form in the next 24-40 hours.


No not quite. Watch the box between 13-14N and 67-68W. That's where the LLC would be most likely to form.
Member Since: 24 novembre 2005 Posts: 586 Comments: 25456
654. WarEagle8 17:38 GMT le 21 juin 2010    
Hurricane food -- pre-cooked vacuum packed bacon....it is easy to heat + is comfort food. I cooked scrambled eggs and bacon on the grill during Hurricane Francis in 2004....wore a poncho! Yummy!
Member Since: 19 août 2008 Posts: 0 Comments: 89
655. GeoffreyWPB 17:38 GMT le 21 juin 2010    
What do you all think...Code Orange in a few minutes?
Member Since: 10 septembre 2007 Posts: 0 Comments: 9127
656. Cazatormentas 17:38 GMT le 21 juin 2010    
Quoting StormW:


Cloud banding feature? Currently 10 KT of wind shear and... a developing anticyclonic outflow aloft?
Member Since: 18 octobre 2007 Posts: 0 Comments: 149
657. stormwatcherCI 17:38 GMT le 21 juin 2010    
Quoting Floodman:


His backyard? MY BACKYARD!?!?!?!

LOL...making a popcorn and Dr. Pepper run...anyone need anything?
LOL, actually looks like MY backyard.
Member Since: 9 octobre 2008 Posts: 0 Comments: 8040
658. Levi32 17:39 GMT le 21 juin 2010    
Quoting GeoffreyWPB:
What do you all think...Code Orange in a few minutes?


Yellow.
Member Since: 24 novembre 2005 Posts: 586 Comments: 25456
659. twhcracker 17:39 GMT le 21 juin 2010    
Quoting PanhandleChuck:


TW --- are you in the P-cola area?


i work in santa rosa beach but live in fountain 40 mi north of panama city but during opal i worked for bay county and had to answer the phone after opal and my god some people were so totally wiped out. storm surge mostly i think. it was a dry hurricane for us. lots of trees fell and power down for 2 weeks in some places. i had to go to the mall parking lot and get pimento cheese sandwiches and ice from the red cross with a guardsman with an automatic rifle guarding. a very eery feeling! i thought i would die with no power for a week and the heat was merciless.
Member Since: 30 juillet 2007 Posts: 6 Comments: 1448
661. TampaSpin 17:39 GMT le 21 juin 2010    
Quoting Jeff9641:
This could be a situation of a cat 2 to 3 hurricane shooting up the easter gulf.


Worst position possible for the West Coast of Florida....the OIL WILL then come pouring onto the coast.
Member Since: 2 septembre 2007 Posts: 175 Comments: 19747
662. reedzone 17:40 GMT le 21 juin 2010    
Quoting Levi32:


No not quite. Watch the box between 13-14N and 67-68W. That's where the LLC would be most likely to form.


Ok, well I'm actually going out after the next TWO. I'm expecting 20-30%, no rush to jump ito orange code yet. This just started organizing, while wind shear is low, it will take time developing.
Member Since: 1 juillet 2008 Posts: 13 Comments: 7247
663. Patrap 17:40 GMT le 21 juin 2010    
The anti-Post is 666
Member Since: 3 juillet 2005 Posts: 371 Comments: 111517
664. lickitysplit 17:41 GMT le 21 juin 2010    
Quoting thegoldenstrand:


and to think Obama had Ken Salazar go to bat for BP so it could drill after Washington DC court ruled in April of 2009 that BP and others could not drill due to environmental safety concerns.

After our inept Government helps destroy the Gulf, Obama and the gang are pushing Nuclear, which will lead to something possibly as bad inland within a couple years if Court decisions and laws are not respected.


Maybe. But remember that it was Bush/Cheney who set up the permitting and control system under which BP was operating. Now we are seeing the consequences of having had an admin run by the oil companies.
Member Since: 17 mai 2007 Posts: 0 Comments: 621
665. Patrap 17:41 GMT le 21 juin 2010    
The NHC dosent point the Floaters
Member Since: 3 juillet 2005 Posts: 371 Comments: 111517
666. leelee75k 17:41 GMT le 21 juin 2010    
I love the dishwasher idea but I know I can't fit a propane tank in there, lol

great suggestions everyone I've read and noted them all and thank you again, it's so much easier to ask this type of question and get answers before the real craziness starts when a storm actually threatens and this blogs moves at lightning speed.
Member Since: 9 septembre 2005 Posts: 0 Comments: 541
667. connie1976 17:41 GMT le 21 juin 2010    
Question all....I live in South Florida and where I live the power lines are underground....How long is the power out for after a hurricane when you have lines that are underground....does the fact that they are underground help any?
Member Since: 1 septembre 2008 Posts: 0 Comments: 672
668. TampaTom 17:41 GMT le 21 juin 2010    
Quoting hydrus:
Ya luk like da holi terrer.:)


Da Holly Terrier? What? Christmas for my pooch?!? :-)
Member Since: 20 juin 2005 Posts: 22 Comments: 1049
669. lickitysplit 17:42 GMT le 21 juin 2010    
Quoting WarEagle8:
Hurricane food -- pre-cooked vacuum packed bacon....it is easy to heat + is comfort food. I cooked scrambled eggs and bacon on the grill during Hurricane Francis in 2004....wore a poncho! Yummy!


mmmmmmmmmmmmmmmm......bacon.......
Member Since: 17 mai 2007 Posts: 0 Comments: 621
670. xcool 17:42 GMT le 21 juin 2010    
hot water & 10K WIND SHEAR .ALLGOOD FOR 93L
Member Since: 26 septembre 2009 Posts: 2 Comments: 15503
671. Patrap 17:42 GMT le 21 juin 2010    
Member Since: 3 juillet 2005 Posts: 371 Comments: 111517
672. hydrus 17:43 GMT le 21 juin 2010    
Quoting leelee75k:
tampa, but what if you don't have a garage? would you then bring them inside the house?
A hand held battery charger for your cell phone can be a life saver. Especially when everything within 40 miles of you has been wiped off the Earth.
Member Since: 27 septembre 2007 Posts: 1 Comments: 14303
673. MississippiWx 17:43 GMT le 21 juin 2010    
Nice banding features on visible:

Member Since: 15 juillet 2006 Posts: 13 Comments: 8596
674. reedzone 17:43 GMT le 21 juin 2010    
Quoting lickitysplit:


Maybe. But remember that it was Bush/Cheney who set up the permitting and control system under which BP was operating. Now we are seeing the consequences of having had an admin run by the oil companies.


2 years after they're gone and you dems are still bashing them, give it up! lol
Besides, this is a weather forum, not political forum, not the right place to bash politicians here.
Member Since: 1 juillet 2008 Posts: 13 Comments: 7247
675. lickitysplit 17:43 GMT le 21 juin 2010    
NYT:

"The 2000s....ushered in an era of aggressive, government-backed offshore oil production. In May 2001, Bush, acting on recommendations from the oil industry, signed an executive order that required federal agencies to expedite permits for energy projects and paved the way for greater domestic oil exploration. "

Member Since: 17 mai 2007 Posts: 0 Comments: 621
676. nrtiwlnvragn 17:43 GMT le 21 juin 2010    
TAFB 48 hours, general wnw movement and still a low.


Member Since: 23 septembre 2005 Posts: 11 Comments: 8935
677. DaytonaBeachWatcher 17:44 GMT le 21 juin 2010    
Quoting reedzone:


2 years after they're gone and you dems are still bashing them, give it up! lol


^5
Member Since: 29 juin 2007 Posts: 0 Comments: 1125
679. lickitysplit 17:44 GMT le 21 juin 2010    
McClatchy:

"The Minerals Management Service had never required any of these backup systems to be tested despite a report it commissioned in 2003 that said these systems "should probably receive the same attention to verify functionality" as the rest of the blowout preventer. The agency had also declined to take the modest step of requiring rigs to have these backup systems in place at all, though it had sent out a safety alert encouraging their use. "

Member Since: 17 mai 2007 Posts: 0 Comments: 621
680. kmanislander 17:44 GMT le 21 juin 2010    
Now



3 Hours ago



Vorticity migrating offshore towards 93L
Member Since: 19 août 2006 Posts: 0 Comments: 14939
681. CaneWarning 17:45 GMT le 21 juin 2010    
Quoting StormGoddess:

ROFLOL. That's hilarious. Especially about the raccoons. :)


You know, I went on a walk on Friday night and did see a raccoon which is very unusual since I live on an island... Would that be considered unusual?
Member Since: 26 avril 2009 Posts: 3 Comments: 3667
684. FLHL2 17:45 GMT le 21 juin 2010    
Quoting Funkadelic:


Maybe I'm blind.. Would love to see what you are seeing. Some one just posted the 12z CMC and showed nothing of what you have spoken of.


check out the latest GFS @ 850mb vorticity
Member Since: 16 juin 2010 Posts: 1 Comments: 22
685. connie1976 17:45 GMT le 21 juin 2010    
I thought that this was a weather place and not a politics place....lol.... :)
Member Since: 1 septembre 2008 Posts: 0 Comments: 672
686. twhcracker 17:45 GMT le 21 juin 2010    
Quoting TampaSpin:


Garage keep.......everything comes inside.


yeah i was actually thinking about where to put my horses since some people are forecast8ing black toxic rain inland from the gulf if a storm ever comes. i dont want my animals in black toxic rain. kidding. but not. maybe.
Member Since: 30 juillet 2007 Posts: 6 Comments: 1448
687. myway 17:46 GMT le 21 juin 2010    
Quoting connie1976:
Question all....I live in South Florida and where I live the power lines are underground....How long is the power out for after a hurricane when you have lines that are underground....does the fact that they are underground help any?


Depends on if you loose transmission lines or if downed tree roots tear up the underground system. Underground problems are harder to find.
Member Since: 28 mai 2008 Posts: 0 Comments: 442
688. FloorManBroward 17:46 GMT le 21 juin 2010    
Not really a necessity but a week after Wilma there was no bread to be found .My local neighborhood store owner drove 100 miles north and loaded up his suv with bread that was snapped up in a day.Of course you need cash because of no electricity so it was cash only.
Member Since: 25 août 2005 Posts: 0 Comments: 61
689. connie1976 17:47 GMT le 21 juin 2010    
Thanks all for answering my question!! I HATE when the power goes out.....when I lived in Orlando and Charlie came...we were out of power for a WEEK!!!! I thought that I was going to die....lol...
Member Since: 1 septembre 2008 Posts: 0 Comments: 672
690. TampaSpin 17:47 GMT le 21 juin 2010    
Quoting GeoffreyWPB:
What do you all think...Code Orange in a few minutes?


Should be Orange at 40% for something to develop in 48HRS
Member Since: 2 septembre 2007 Posts: 175 Comments: 19747
691. TampaTom 17:47 GMT le 21 juin 2010    
Quoting connie1976:
I thought that this was a weather place and not a politics place....lol.... :)


Keep yer head down, lass...it's about to blow in fast and furious!
Member Since: 20 juin 2005 Posts: 22 Comments: 1049
692. twhcracker 17:47 GMT le 21 juin 2010    
hey you know what is a good hurricane food? I love those starkist pouches of "sandwich ready" tuna, eat it for lunch all the time. only has a hundred calories and water chestnuts and pickles. i buy three or four extra every time i go to the store. and sardines.
Member Since: 30 juillet 2007 Posts: 6 Comments: 1448
693. reedzone 17:47 GMT le 21 juin 2010    
Quoting connie1976:
I thought that this was a weather place and not a politics place....lol.... :)


I know, we have a serious potential situation on our hands and someone comes in talking about how bad the Bush Admin. is.. It's been 2 years, time to move on.
Member Since: 1 juillet 2008 Posts: 13 Comments: 7247
694. MississippiWx 17:48 GMT le 21 juin 2010    
Go here and zoom in at 14N 69W. See if you can see what I see:

Link
Member Since: 15 juillet 2006 Posts: 13 Comments: 8596
695. sailingallover 17:49 GMT le 21 juin 2010    
Quoting Jeff9641:


Sorry but JB is wrong a strong trough up in the NE US will create a weakness in the ridge and send 93L N.

I said the same thing about 92L last Tuesday..
That Low and weakness never developed..the ridge got stronger in the western Atlantic...
Then I said the same thing Saturday and the forecast for the ridge changed AGAIN Saturday afternoon..
USUALLY the forecast for the High,Ridges and Lows above 25N are pretty dead on but I've eaten two dead crows for forecasting tracks based on them..

Member Since: 1 septembre 2009 Posts: 23 Comments: 982
697. GoodOleBudSir 17:49 GMT le 21 juin 2010    
Quoting connie1976:
Question all....I live in South Florida and where I live the power lines are underground....How long is the power out for after a hurricane when you have lines that are underground....does the fact that they are underground help any?


Not sure how long but I know people in Weston that never lost power. If I recall, the people in Weston that did lose power got it back relatively quick. Not sure if this had to do with their powerlines being under ground or not.
Member Since: 30 juillet 2008 Posts: 0 Comments: 261
698. Levi32 17:49 GMT le 21 juin 2010    
ZCZC MIATWOAT ALL
TTAA00 KNHC DDHHMM
TROPICAL WEATHER OUTLOOK
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT MON JUN 21 2010

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

1. A LARGE AREA OF SHOWERS AND THUNDERSTORMS OVER THE EASTERN CARIBBEAN
SEA IS ASSOCIATED WITH A STRONG TROPICAL WAVE THAT IS MOVING
WESTWARD AT 10 TO 15 MPH. ALTHOUGH THERE IS NO EVIDENCE OF A
SURFACE CIRCULATION...THIS SYSTEM IS SHOWING SOME SIGNS OF
ORGANIZATION AND ENVIRONMENTAL CONDITIONS APPEAR CONDUCIVE FOR
GRADUAL DEVELOPMENT DURING THE NEXT COUPLE OF DAYS. THIS WAVE
COULD PRODUCE LOCALLY HEAVY RAINFALL AND GUSTY WINDS OVER PORTIONS
OF NORTHERN VENEZUELA...THE NETHERLANDS ANTILLES...PUERTO
RICO...THE DOMINICAN REPUBLIC...AND HAITI OVER THE NEXT DAY OR SO.
THERE IS A MEDIUM CHANCE...30 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.

$$
FORECASTER BLAKE
NNNN



Member Since: 24 novembre 2005 Posts: 586 Comments: 25456
699. gremlingator 17:49 GMT le 21 juin 2010    
hope i posted this correctly this is what i was asking about earlier

http://moe.met.fsu.edu/cgi-bin/gfstc2.cgi?time=2010062112&field=850mb+Vorticity&hour=Animation
700. GeoffreyWPB 17:49 GMT le 21 juin 2010    
Quoting TampaSpin:


Should be Orange at 40% for something to develop in 48HRS


That's my thinking. Perhaps a bump up to 30%.
Member Since: 10 septembre 2007 Posts: 0 Comments: 9127
701. kanc2001 17:49 GMT le 21 juin 2010    
Quoting hydrus:
A hand held battery charger for your cell phone can be a life saver. Especially when everything within 40 miles of you has been wiped off the Earth.


yea, including the cell towers
Member Since: 18 août 2008 Posts: 0 Comments: 181

Viewing: 651 - 701

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79Blog Index

New Comment
Community Standards Policy Comments will take a few seconds to appear.
Post Your Comments
Please sign in to post comments.
Not only will you be able to leave comments on this blog, but you'll also have the ability to upload and share your photos in our Wunder Photos section.
About JeffMasters
Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

Local Weather
Overcast
51 ° F
Couvert
Community Activity