TD 13 intensifying; Katia may pass uncomfortably close to U.S.

By: Dr. Jeff Masters , 3:28 PM GMT on September 02, 2011

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Tropical Depression Thirteen formed last night over the Northern Gulf of Mexico and is slowly intensifying, but isn't in a hurry to go anywhere. What TD 13 will do is dump torrential rains along the northern Gulf Coast over the next three or more days. So far, rain amounts along the coast have mostly been below one inch. At New Orleans Lakefront Airport, just 0.32" inches of rain had fallen from TD 13 as of 10 am CDT. Some coastal regions have received up to two inches, according to radar rainfall estimates. TD 13 is generating a large area of 30 - 35 mph winds over the Gulf of Mexico. At 7:20 am CDT, winds at the Mississippi Canyon 711 oil rig were southeast at 47 mph. This is above tropical storm force, but the wind instrument was 348 feet (106 m) above the ocean surface, and winds near the surface were probably considerably lower, near 35 mph. Latest surface wind observations from an Air Force hurricane hunter aircraft support leaving TD 13 as a tropical depression. Long range radar out of Mobile, Alabama shows heavy rain showers building along the northern Gulf Coast, but these rain showers are not well-organized into spiral bands. Strong upper-level winds out of the west-northwest are creating a moderate 10 - 20 knots of wind shear over TD 13, keeping the storm's heavy thunderstorms disorganized and pushed to the east side of the storm. However, latest satelllite loops show TD 13 is becoming increasingly organized, with a respectable spiral band forming on the southeast side, and an increase and areal coverage of heavy thunderstorm activity. This is very likely to be a tropical storm later today.


Figure 1. Radar-estimated rainfall from TD 13 from the New Orleans radar.


Figure 2. U.S. drought conditions on August 30. The rains from TD 13 have the potential to bring major drought relief to drought-stricken portions of the coast. Note how Eastern North Carolina is no longer in drought, thanks to the rains from Hurricane Irene. These rains also came close to putting out a persistent fire that had been burning in the Great Dismal Swamp near the Virginia/North Carolina border. Image Credit: U.S. Drought Monitor.

Forecast for TD 13
TD 13's large size, ill-formed circulation center, and the presence of dry air on its west side due to an upper-level trough of low pressure argue against rapid intensification of the storm for the next three days. Also tending to slow intensification will be the slow movement of the storm, which will allow cold water from the depths to rise to the surface, thanks to wind and wave action. Tropical cyclones strongly cool the water's surface when they pass over it, as seen in the time vs. depth chart of sea surface temperatures during Hurricane Irene's passage along the New Jersey coast (Figure 3.) However, the Gulf of Mexico has some very warm waters near TD 13 that extend to great depth (Figure 4), so the surface cooling imparted by TD 13 will be less than that seen for Hurricane Irene. As TD 13 moves closer to the coast, more and more of its circulation will be over land, which will also slow intensification. NHC's 11 am EDT wind probability forecast for TD 13 gave the storm a 23% chance of intensifying into a hurricane by Sunday. Assuming TD 13 does not attain hurricane strength, wind damage and storm surge damage will likely not be the main concern--fresh water flooding from heavy rains will be the most dangerous impact. Also of concern is the possibility of tornadoes. NOAA's Storm Prediction Center is currently not highlighting the Gulf Coast in their "slight risk" area for severe weather, due to the lack of enough solar heating to create instability. However, there will be plenty of wind shear in the lower part of the atmosphere that can potentially create spin in the coastal thunderstorms, and it is possible that as TD 13 intensifies, it may be able to generate several dozen tornadoes.

Coastal Louisiana, Mississippi, Alabama, and the extreme western Panhandle of Florida will likely receive very heavy flooding rains that will intensify Saturday and peak on Sunday. These rains should be able to put out the stubborn marsh fire east of New Orleans that has brought several days of air quality alerts to the city, but may cause moderate to severe flooding problems in other areas. The latest rainfall forecast from NOAA Hydrological Prediction Center shows that a large area of 15+ inches of rain is expected over Southeast Louisiana and coastal Mississippi. The region is under moderate drought, so flooding problems will be delayed compared to what we'd normally expect from heavy rains of over a foot. Flash flood watches are posted for New Orleans and surrounding areas, and rainfall amounts of 1 - 3 inches per hour are possible in some of the heavier rain squalls. Ocean temperatures are near record warmth, 88°F (31°C), which will provide plenty of moisture for heavy rains, and plenty of energy to help TD 13 strengthen into a strong tropical storm. Steering currents will be weak in the Gulf this weekend and early next week, which will likely make the motion of TD 13 erratic at times.


Figure 3. EPA, in conjunction with Rutgers University and the NJ Department of Environmental Protection, has an Autonomous Underwater Vehicle (AUV, aka the Glider) deployed off the coast of NJ (since early August) continuously monitoring ocean temperature, density, salinity, sound velocity and dissolved oxygen at different depths. The AUV's path and data are displayed at the following website: http://marine.rutgers.edu/cool/auvs/index.php?did =221&view=imagery. The plot of temperature versus time above shows that in the weeks prior to the arrival of Irene, the ocean was heavily stratified, with warm waters of 24 - 26°C (75 - 79°F, red colors) extending from the surface to a depth of 10 - 15 meters. A sharp thermocline existed at a depth of about 15 meters, and ocean temperatures were colder than 14°C (57°F, dark blue colors) below the thermocline. The strong winds and high wave action of Hurricane Irene on August 28 - 29 stirred up cold water from the depths to the surface, cooling the surface waters to 17 - 19°C (63 - 67°F). In the days since the hurricane, surface waters have begun to warm again. Thanks go to Kevin Kubik, Deputy Director of the Division of Environmental Science and Assessment for EPA Region 2, for making me aware of this data.


Figure 4. The total amount of heat energy in the ocean available to fuel a tropical cyclone, in kilojoules per square centimeter of surface area. Tropical cyclones that move over ocean areas with TCHP values in excess of 70 - 90 kJ/cm^2 commonly undergo rapid intensification. Waters that are warm to a great depth have the highest TCHP, and the Loop Current that brings warm water northwards from the Caribbean to the Gulf of Mexico usually has the highest TCHP values in the Atlantic. Currently, we have an eddy that broke off from the Loop Current earlier this summer, now located a few hundred miles south of the Louisiana coast, that also has high TCHP values. Image Credit: NOAA/AOML.

Hurricane Katia
Hurricane Katia is continuing its long trek across the Atlantic Ocean today, and will not pose a danger to any land areas over the next five days. Katia is still struggling with dry air and moderate wind shear of 10 - 20 knots. Latest satellite loops show surface-based arc-shaped clouds racing to the southwest away from Katia's core, a sign that dry air is penetrating into Katia's thunderstorms and creating strong downdrafts that are robbing the storm of heat and moisture. Katia is over warm ocean waters of 28.5°C, and these waters will increase in temperature to 29°C over the next five days. Katia will pass well north of the region of cooler waters stirred up by the passage of Hurricane Irene last week.

The models are split on when the upper-level trough of low pressure bringing the wind shear to Katia will move away, and the storm may spend two more days battling wind shear and dry air before the upper-level trough pulls away to the north and allows Katia to intensify more readily. It is still unclear how much of a threat Katia may pose to the U.S., but it is becoming increasingly clear that Katia will pass uncomfortably close to the U.S. East Coast. The trough of low pressure currently steering Katia to the northwest will lift out early next week, and a ridge of high pressure is expected to build in, forcing Katia more to the west. This decreases the danger to Bermuda, but increases the danger to the U.S. A second trough of low pressure is expected to begin affecting Katia by the middle of next week, and will potentially recurve the storm out to sea before it hits the U.S. However, the models differ widely on the strength and timing of this trough. Meteorologist Grant Elliot of Australia's Bureau of Meteorology in Perth pointed out to me yesterday that the long-range forecast for Katia has more than the usual amount of uncertainty, due to the inability of the computer models to agree on what will happen to Tropical Storm Talas in the Western Pacific. Talas is expected to hit Japan early on Saturday as a strong tropical storm, then race northwestwards into the Bering Sea off the coast of Alaska. Talas is then expected to transition into a powerful extratropical storm in the waters south of Alaska. This storm will create a ripple effect downstream in the jet stream, all the way to North America, by early next week. The timing and amplitude of the trough of low pressure off the U.S. East Coast expected to potentially recurve Katia out to sea next week is highly dependent upon the strength of Tropical Storm Talas during its transition to an extratropical storm. The computer models are not very good at handling these sorts of transitions, leading to more than the usual amount of uncertainty in the long-range outlook for Katia. It will probably be another 2 - 3 days before the models will begin to converge on a solution for the long-term fate of Katia. Dr. Bob Hart's Historical Tropical Cyclone Probability web page suggests shows that tropical storms in Katia's current position have a 17% chance of hitting North Carolina, a 21% chance of hitting Canada, a 13% chance of hitting New England, and a 55% chance of never hitting land. One almost certain impact of Katia on the U.S. will be large waves. Long period swells from Katia will begin affecting the Bahamas on Sunday night, then reach the Southeast U.S. by Monday morning. By Tuesday morning, the entire U.S. East Coast will see high surf from Katia, and these waves will increase in size and power as the storm grows closer. Given the slow movement of Katia as it approaches the coast, plus its expected Category 1 to 3 strength as it approaches, the storm will probably cause extensive beach erosion and dangerous rip tides for many days.

94L
A well-organized low pressure system with a surface circulation but limited heavy thunderstorm activity due to high wind shear is 450 miles south of Halifax, Canada. This disturbance, (94L), is headed northeast out to sea, and is being given a 60% chance of developing into a tropical depression by NHC. 94L is under a high 25 - 30 knots of wind shear, but this shear is expected to fall to the moderate range, 10 - 20 knots, by Saturday morning. However, sea surface temperature will fall from 27°C today to 25°C Saturday morning underneath 94L, and the storm will have a very short window of time to get organized enough to get a name. At this point, it's really a subjective judgement call on whether or not 94L is already a tropical storm.


Figure 5. A Portlight volunteer works to clear storm debris from Hurricane Irene in Hollywood, Maryland.

Portlight disaster relief effort in Maryland
Hurricane Irene heavily damaged the town of Hollywood, Maryland, when a tornado cut off electric power, water, and phone service. Portlight and Team Rubicon volunteers arrived before emergency personnel, after following up on a local tip. What they found was an isolated area whose plight was unknown to the larger community. Most residents were trapped at their homes by heavy debris. Portlight and Team Rubicon worked for two days to clear paths to each address, extract vehicles from debris, and cut down trees that constituted safety hazards. Portlight also instructed local residents how to operate and maintain chainsaws and safely clear debris. No other volunteer organizations or emergency personnel arrived at any time, and Portlight succeeded in meeting the specific needs of the underserved, unserved, and forgotten. Visit the Portlight blog to learn more; donations are always welcome.

I'll have a new post each morning over the coming holiday weekend; wunderground meteorologists Angela Fritz, Rob Carver, and Shaun Tanner will be handling the afternoon and evening posts. Have a great holiday weekend, everyone!

Jeff Masters

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....and we now officially have Tropical Storm Lee.

BULLETIN
TROPICAL STORM LEE INTERMEDIATE ADVISORY NUMBER 4A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL132011
100 PM CDT FRI SEP 02 2011

...DEPRESSION STRENGTHENS INTO TROPICAL STORM LEE SOUTH OF THE
LOUISIANA COAST...HEAVY RAINBANDS CONTINUE TO SPREAD ACROSS MUCH
OF SOUTHEASTERN AND SOUTH-CENTRAL LOUISIANA...


SUMMARY OF 100 PM CDT...1800 UTC...INFORMATION
----------------------------------------------
LOCATION...27.4N 91.5W
ABOUT 200 MI...320 KM SE OF CAMERON LOUISIANA
ABOUT 210 MI...340 KM SW OF THE MOUTH OF THE MISSISSIPPI RIVER
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...NW OR 325 DEGREES AT 2 MPH...4 KM/H
MINIMUM CENTRAL PRESSURE...1003 MB...29.62 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

NONE

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* PASCAGOULA MISSISSIPPI WESTWARD TO SABINE PASS TEXAS...INCLUDING
THE CITY OF NEW ORLEANS...LAKE PONTCHARTRAIN...AND LAKE MAUREPAS

A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN THE
NEXT 24 HOURS.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE
INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY
YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST OFFICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 100 PM CDT...1800 UTC...THE CENTER OF TROPICAL STORM LEE WAS
LOCATED BY AN AIR FORCE RESERVE RECONNAISSANCE AIRCRAFT AND
OBSERVATIONS FROM OIL RIGS TO BE NEAR LATITUDE 27.4 NORTH...
LONGITUDE 91.5 WEST. LEE IS DRIFTING TOWARD THE NORTHWEST NEAR 2
MPH...4 KM/H. A CONTINUED SLOW AND POSSIBLY ERRATIC MOTION TOWARD
THE NORTHWEST OR NORTH IS EXPECTED TODAY AND SATURDAY. ON THE
FORECAST TRACK...THE CENTER OF THE TROPICAL STORM IS EXPECTED TO
APPROACH THE COAST OF SOUTHERN LOUISIANA DURING THE WEEKEND.

MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 40 MPH...65 KM/H...
WITH HIGHER GUSTS. GRADUAL STRENGTHENING IS FORECAST DURING THE
NEXT 48 HOURS. WIND GUSTS TO NEAR 60 MPH ARE BEING REPORTED ON OIL
RIGS NORTH AND EAST OF THE CENTER AT ELEVATIONS OF A FEW HUNDRED
FEET ABOVE THE OCEAN SURFACE.

TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 200 MILES...325
KM...MAINLY NORTHEAST THROUGH SOUTHEAST OF THE CENTER.

THE ESTIMATED MINIMUM CENTRAL PRESSURE BASED ON REPORTS FROM NEARBY
OIL RIGS AND AN AIR FORCE RESERVE RECONNAISSANCE AIRCRAFT IS 1003
MB...29.62 INCHES.


HAZARDS AFFECTING LAND
----------------------
RAINFALL...TROPICAL STORM LEE IS EXPECTED TO PRODUCE TOTAL RAIN
ACCUMULATIONS OF 10 TO 15 INCHES OVER SOUTHERN LOUISIANA...SOUTHERN
MISSISSIPPI...AND SOUTHERN ALABAMA THROUGH SUNDAY...WITH POSSIBLE
ISOLATED MAXIMUM AMOUNTS OF 20 INCHES. THESE RAINS ARE EXPECTED TO
CAUSE EXTENSIVE FLOODING...ESPECIALLY IN URBAN AREAS.

STORM SURGE...A STORM SURGE WILL RAISE WATER LEVELS BY AS MUCH AS 2
TO 4 FEET ABOVE GROUND LEVEL ALONG THE NORTHERN GULF COAST IN AREAS
OF ONSHORE FLOW.

WIND...TROPICAL STORM CONDITIONS ARE EXPECTED TO FIRST REACH THE
COAST WITHIN THE WARNING AREA BY LATE AFTERNOON OR EVENING...MAKING
OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS.

TORNADOES...ISOLATED TORNADOES ARE POSSIBLE OVER PORTIONS OF
SOUTHERN LOUISIANA TONIGHT.


NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...400 PM CDT.

$$
FORECASTER STEWART



Batten down the hatches, folks.


Anthony

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Everyone needs to relax about Katia; not a threat. Definitely an OTS storm. The big concern is Lee and I wish more people were focusing on the effects of this storm all over the Gulf and eventually up in New England.
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Quoting VAstorms:


In Anchorage at the moment and no shaking felt here.

I would imagine not; Anchorage is slightly more than 1,000 miles from the epicenter of this morning's quake. That's the distance from LA to Vancouver, or NYC to Kansas City...
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Quoting VAbeachhurricanes:


Um, stop it.


LOL..I didnt write it..
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583. jpsb
Quoting 69Viking:


Yeah personally i would love that! Texas needs the rain and I need my Labor Day Weekend Crab Island fix!
More likely is what Levi was talking about yesterday, a high building from the north, but I don't see a high building in with that ULL spinning right on top of Lee. But then I don't read met maps as well as alot of better bloggers here.
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This one can become Maria or Nate....
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Quoting HoustonTxGal:




Breaking
News from ABC13

Friday, September 2,
2011



The
ABC13 Eyewitness Weather team says Tropical Storm Lee has formed in the Gulf of
Mexico. Tune in to Eyewitness News at 4pm for the latest.

For more details, go to abc13.com.
[Sent: 12:35pm]



Love how they make it sound like they are the ones who declared it.

Never was a fan of channel 13.
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The Latest 2:00pm Advisory
*Click graphics to magnify (graphics can further be magnified in Link window by clicking on them)
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LEVI
NOW THAT WE HAVE katia and Lee and possibly Maria from 94L i am looking very carefully at an area of disturbed weather with a low of 1011 mb near 10N31w which has strong 850mb vorticity. what are your impressions of this area.
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Breaking
News from ABC13

Friday, September 2,
2011



The
ABC13 Eyewitness Weather team says Tropical Storm Lee has formed in the Gulf of
Mexico. Tune in to Eyewitness News at 4pm for the latest.

For more details, go to abc13.com.
[Sent: 12:35pm]

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Levi...haven't had a chance yet to look at your tropical tidbit yet.... but what are your thoughts on Lee topping out at? Thanks!
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Quoting xtremeweathertracker:
New center fix is approx. 50 Miles SW of this mornings Vortex Message...Hmmmmm the models may shift west with a new initialization point!!


Which storm ??
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Quoting ncstorm:
NWS New Orleans Discussion..

LONG TERM...
GOING TO BE A WHILE BEFORE WE GET RID OF OUR TROPICAL SYSTEM.
STEERING WINDS AND FORCING IS VERY WEAK THROUGH THE NEXT SEVERAL
DAYS. BUT AS IT DOES MOVE INLAND IT BECOMES MORE BAROCLINIC AND
EVEN DEVELOPS FRONTOGENESIS TO ITS SOUTH. THIS SHOULD HELP DRY THE
AREA OUT BY MID NEXT WEEK. THIS WHOLE SYSTEM WILL THEN BE
RESPONSIBLE FOR PICKING UP THE NEXT MAJOR HURRICANE THAT IS NOT
LOOKING TOO FRIENDLY TO THE EAST COAST. HOPE THIS THING TURNS INTO
THE UPPER TROUGH WELL OFFSHORE. BECAUSE INSTEAD OF SKIRTING LAND
LIKE IRENE ON ITS NORTHWARD JOURNEY...THIS ONE IS MAKING A B-LINE
FOR THE EAST COAST WHICH DOES NOT ALLOW IT TO WEAKEN MUCH BEFORE SUPPOSEDLY
TURNING.


Um, stop it.
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Thanks Levi,

since you were talking about it being difficult for a TX storm this year (if I remember correctly), this seems to be our only hope.
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...DEPRESSION STRENGTHENS INTO TROPICAL STORM LEE SOUTH OF THE LOUISIANA COAST...HEAVY RAINBANDS CONTINUE TO SPREAD ACROSS MUCH OF SOUTHEASTERN AND SOUTH-CENTRAL LOUISIANA...


1:00 PM CDT Fri Sep 2
Location: 27.4°N 91.5°W
Max sustained: 40 mph
Moving: NW at 2 mph
Min pressure: 1003 mb
Member Since: July 3, 2005 Posts: 426 Comments: 128668
570. IKE
....
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Quoting sarahjola:
what is pressure now? thanks
1003mb
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Quoting scott39:
Pressure continues to drop.
what is pressure now? thanks
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If the UKMET, NOGAPS and CMC have anything to say about it, somebody on the east coast is probably going to get a visit from Katty Katia. Or at least a very close call.

Fortunately, there are still a variety of more reliable models that disagree. Just hope it stays that way!
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NWS New Orleans Discussion..

LONG TERM...
GOING TO BE A WHILE BEFORE WE GET RID OF OUR TROPICAL SYSTEM.
STEERING WINDS AND FORCING IS VERY WEAK THROUGH THE NEXT SEVERAL
DAYS. BUT AS IT DOES MOVE INLAND IT BECOMES MORE BAROCLINIC AND
EVEN DEVELOPS FRONTOGENESIS TO ITS SOUTH. THIS SHOULD HELP DRY THE
AREA OUT BY MID NEXT WEEK. THIS WHOLE SYSTEM WILL THEN BE
RESPONSIBLE FOR PICKING UP THE NEXT MAJOR HURRICANE THAT IS NOT
LOOKING TOO FRIENDLY TO THE EAST COAST. HOPE THIS THING TURNS INTO
THE UPPER TROUGH WELL OFFSHORE. BECAUSE INSTEAD OF SKIRTING LAND
LIKE IRENE ON ITS NORTHWARD JOURNEY...THIS ONE IS MAKING A B-LINE
FOR THE EAST COAST WHICH DOES NOT ALLOW IT TO WEAKEN MUCH BEFORE SUPPOSEDLY
TURNING.
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Quoting Levi32:


It's about time....
Pressure continues to drop.
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thanks for the answers on hh. can someone post what they are finding when you can? me and my family would be very greatful. thanks!
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Quoting ncstorm:


only if you promise to give them back after they cool down..

Yeah, yeah, yeah...but I can't promise they'll remain intact.
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Quoting jpsb:
I mentioned that too, was wondering if maybe it was being steered more by the high to the west then the trof to the north. Hoping td13 stays weak and drifts west, south west.


Yeah personally i would love that! Texas needs the rain and I need my Labor Day Weekend Crab Island fix!
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Member Since: July 3, 2005 Posts: 426 Comments: 128668
any one see this on LEE?


TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 200 MILES...325
KM...MAINLY NORTHEAST THROUGH SOUTHEAST OF THE CENTER.
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Lol, Tropical Atlantic site did a blend............. Tropical Storm 13!!
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From an amateur observer of this blog I find it wondrous and amazing how, as Dr. Masters illustrates it, Tropical Storm Talas will have an effect on the long term track of Katia. It is an amazing reflection how mother nature behaves on a global level compared to what we many of us think about / react to within our local geographies.
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Quoting IKE:
...DEPRESSION STRENGTHENS INTO TROPICAL STORM LEE SOUTH OF THE
LOUISIANA COAST...HEAVY RAINBANDS CONTINUE TO SPREAD ACROSS MUCH
OF SOUTHEASTERN AND SOUTH-CENTRAL LOUISIANA...






1:00 PM CDT Fri Sep 2

Location: 27.4°N 91.5°W

Max sustained: 40 mph

Moving: NW at 2 mph

Min pressure: 1003 mb


It's about time....
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www.nhc.noaa.gov/#LEE
Member Since: July 3, 2005 Posts: 426 Comments: 128668
549. HCW
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Quoting TexasHurricane:


When is that suppose to be?

It is getting breezy here that is for sure, but nothing else. It still feels pretty warm.


Later this weekend. Some of you are going to get showers, I'm pretty certain, but widespread heavy rain will be hard to come by unless the storm ramps up a lot and comes into far western Louisiana which could bring the eastern-most parts of Texas into the rain shield. We're hoping with you.
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547. IKE
...DEPRESSION STRENGTHENS INTO TROPICAL STORM LEE SOUTH OF THE
LOUISIANA COAST...HEAVY RAINBANDS CONTINUE TO SPREAD ACROSS MUCH
OF SOUTHEASTERN AND SOUTH-CENTRAL LOUISIANA...






1:00 PM CDT Fri Sep 2

Location: 27.4°N 91.5°W

Max sustained: 40 mph

Moving: NW at 2 mph

Min pressure: 1003 mb
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Tropical Storm LEE Storm Archive
...DEPRESSION STRENGTHENS INTO TROPICAL STORM LEE SOUTH OF THE LOUISIANA COAST...HEAVY RAINBANDS CONTINUE TO SPREAD ACROSS MUCH OF SOUTHEASTERN AND SOUTH-CENTRAL LOUISIANA...
Member Since: July 3, 2005 Posts: 426 Comments: 128668
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NOLA mets just announced that NHC is naming Lee.
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542. IKE
TWC....TROPICAL STORM LEE NOW!
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Quoting laguna2:


Pardon my lay person's ignorance, but what is "CIMSS?"


Cooperative Institute for Meteorological Satellite Studies out of U. Wisconsin. The produce a lot of the products you see posted here, including the steering layer chart I posted in the original comment.
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Member Since: July 3, 2005 Posts: 426 Comments: 128668
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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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