Tropical wave 92L weakens but could bring heavy rains to Haiti
The tropical wave (92L) that brought heavy rains of 2 - 5 inches to Puerto Rico on Saturday is continuing westward at 10 - 15 mph, but has grown very disorganized. The National Hurricane Center is no longer interested enough in this wave to classify it as an "invest" worthy of generating computer forecasts for. Today through Monday, 92L will encounter 20 - 40 knots of wind shear as it plows though a region of strong upper-level winds associated with the subtropical jet stream. The disturbance will also encounter the mountainous terrain of Hispaniola and Cuba. If there is anything left of 92L after crossing these mountains, it may have the opportunity to develop beginning on Tuesday, when it will enter a region of wind shear less than 20 knots near central Cuba. None of our reliable computer forecast models is calling for 92L to develop once it reaches this region of lower wind shear. I give 92L a 10% chance of developing into a tropical depression by Saturday. The storm could bring heavy rains of up to four inches to Haiti today and Monday. Rain of four inches are probably the lower threshold for life-threatening floods to occur in the Haiti earthquake zone, and this disturbance poses the most serious flooding threat Haiti has seen since the earthquake.

Figure 1. Radar estimated rainfall over Puerto Rico from Invest 92L.
Elsewhere in the tropics
The NOGAPS and ECMWF models call for a possible tropical depression to form in the central or western Caribbean next weekend, 6 - 8 days from now.
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 Monday through Thursday, 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 calls for a continued summertime weather pattern of weak winds over the Gulf of Mexico during the coming two weeks.

Figure 2. Visible satellite image from NASA's MODIS instrument of the Deepwater Horizon oil slick from Saturday, June 19, 2010.
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
Happy Father's Day, all you fathers out there, and I'll have an update on Monday.
Jeff Masters
Reader Comments
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* ATLANTIC SHIPS INTENSITY FORECAST *
* GOES DATA AVAILABLE *
* OHC DATA AVAILABLE *
* INVEST AL932010 06/21/10 12 UTC *
TIME (HR) 0 6 12 18 24 36 48 60 72 84 96 108 120
V (KT) NO LAND 25 27 29 33 37 46 56 65 70 76 80 84 88
V (KT) LAND 25 27 29 33 37 46 56 65 70 76 80 84 88
V (KT) LGE mod 25 26 27 29 31 35 41 49 59 70 80 90 96
SHEAR (KT) 7 7 12 9 5 7 7 5 8 4 2 6 8
SHEAR ADJ (KT) -4 -2 -4 -6 -3 -4 -2 -2 -4 -4 -3 -5 -4
SHEAR DIR 212 168 172 185 266 183 285 263 301 213 291 229 348
SST (C) 28.9 28.9 28.9 28.8 28.8 28.8 28.9 29.0 29.1 29.2 29.3 29.5 29.6
POT. INT. (KT) 151 151 151 149 149 149 150 151 152 154 155 159 160
ADJ. POT. INT. 151 150 151 149 148 147 146 145 143 144 145 147 146
200 MB T (C) -53.2 -52.3 -52.1 -52.5 -52.9 -52.1 -52.7 -52.4 -53.0 -52.6 -52.9 -52.6 -53.0
TH_E DEV (C) 7 7 6 6 6 8 8 10 10 12 10 12 10
700-500 MB RH 83 84 85 82 81 80 78 74 72 68 67 64 64
GFS VTEX (KT) 0 LOST LOST LOST LOST LOST LOST LOST LOST LOST LOST LOST LOST
850 MB ENV VOR 67 84 82 85 80 80 67 71 65 69 57 52 26
200 MB DIV 83 78 83 84 80 79 58 44 23 7 -11 -3 3
LAND (KM) 238 207 178 195 201 326 231 192 276 265 212 241 228
LAT (DEG N) 13.0 13.3 13.6 14.0 14.3 15.1 15.7 16.3 16.6 16.9 17.4 18.0 18.5
LONG(DEG W) 67.2 68.3 69.4 70.7 71.9 74.3 76.6 78.6 80.3 81.7 83.1 84.3 85.4
STM SPEED (KT) 12 11 12 13 12 12 11 9 7 7 7 6 5
HEAT CONTENT 67 56 64 76 76 70 82 113 104 83 91 87 84
I try. I try.
I'm a "Dewer's" man myself....
I went out last night, and found them on the beach to the west of the Jetty. Should I have called someone?
That doesn't look good at all. Tampa would have oil all over if that track verifies.
Nah, this guy drinks it...
St Andrews?
it's five'o'clock somewhere...
That is one nasty scenario! I would figure that plenty of oil would be tossed into the loop current. Not good for Fla or anyone else for that matter.
Grand Isle Proper in the front ,,is getting some oil..but the Main influx seems to be near Barataria Bay.
No it's a new entry from 930 this morning.
Destin.
Hiya! Long time, no see...
Morning Storm, and all. I see we have 93L to discuss.
Terrible run or not, a storm with this strength will move the oil or cause BP to temporarily leave the GOM.
Bill Clinton likes Jack.
I like booze....
Wow, SHIPS really likes that blob !
There is really nothing to stop this system from organizing and strengthening from what I see.
I volunteer for the Eglin Natural Resources and here are some numbers to call if you find oil or oiled wildlife.
Report that information on your cell phone to #DEP
Or on regular land line: 877 272-8335
The Ops run of the EURO is a major outlier compared to its ensemble members.
151
WHXX01 KWBC 211310
CHGHUR
TROPICAL CYCLONE GUIDANCE MESSAGE
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1310 UTC MON JUN 21 2010
DISCLAIMER...NUMERICAL MODELS ARE SUBJECT TO LARGE ERRORS.
PLEASE REFER TO NHC OFFICIAL FORECASTS FOR TROPICAL CYCLONE
AND SUBTROPICAL CYCLONE INFORMATION.
ATLANTIC OBJECTIVE AIDS FOR
DISTURBANCE INVEST (AL932010) 20100621 1200 UTC
...00 HRS... ...12 HRS... ...24 HRS. .. ...36 HRS...
100621 1200 100622 0000 100622 1200 100623 0000
LAT LON LAT LON LAT LON LAT LON
BAMS 13.0N 67.2W 13.7N 69.3W 14.4N 71.6W 15.2N 73.9W
BAMD 13.0N 67.2W 13.8N 69.3W 14.5N 71.5W 15.3N 73.7W
BAMM 13.0N 67.2W 13.6N 69.4W 14.3N 71.9W 15.1N 74.3W
LBAR 13.0N 67.2W 14.0N 69.6W 15.2N 72.2W 16.2N 74.7W
SHIP 25KTS 29KTS 37KTS 46KTS
DSHP 25KTS 29KTS 37KTS 46KTS
...48 HRS... ...72 HRS... ...96 HRS. .. ..120 HRS...
100623 1200 100624 1200 100625 1200 100626 1200
LAT LON LAT LON LAT LON LAT LON
BAMS 15.8N 76.1W 16.8N 80.1W 17.8N 83.3W 19.1N 85.7W
BAMD 15.9N 75.7W 16.7N 78.9W 17.6N 81.7W 18.6N 84.1W
BAMM 15.7N 76.6W 16.6N 80.3W 17.4N 83.1W 18.5N 85.4W
LBAR 16.9N 77.1W 18.0N 81.1W 19.7N 84.0W 22.2N 85.5W
SHIP 56KTS 70KTS 80KTS 88KTS
DSHP 56KTS 70KTS 80KTS 88KTS
...INITIAL CONDITIONS...
LATCUR = 13.0N LONCUR = 67.2W DIRCUR = 280DEG SPDCUR = 13KT
LATM12 = 12.5N LONM12 = 64.5W DIRM12 = 281DEG SPDM12 = 13KT
LATM24 = 11.8N LONM24 = 60.5W
WNDCUR = 25KT RMAXWD = 30NM WNDM12 = 25KT
CENPRS = 1010MB OUTPRS = 1011MB OUTRAD = 120NM SDEPTH = S
RD34NE = 0NM RD34SE = 0NM RD34SW = 0NM RD34NW = 0NM
$$
NNNN
Well, I don't know anything about desalinization, but I would think a normal water treatment facility may or may not have an issue with oily water, depending on what kind of treatment they use. They can get a lot of crap out of water. Unfortunately, that doesn't help the wildlife in the area...
Just curious. Why would a hurricane hitting the north gulf cause oil to be in Tampa?
Thanks,
Kelley
Euro isn't the only model developing this system.
Viewing: 2551 - 2601
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