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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Quoting franck:


Are you tokkin' ta me?
Theres no doubt a real rain is gonna come...
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Quoting TropicalAnalystwx13:


Shear my have lessened, but it still looks very bad.



lol will ok if you say so but i still giveing it a ch at lest not giveing up on it
Member Since: May 21, 2006 Posts: 5091 Comments: 115436
Look at the size of that monster right off the coast of the Aleutian Islands. Wow. Kind of interesting being that the 7.1 magnitude earthquake earlier this morning was right near that vicinity.
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Quoting brazocane:
Probably has been posted already but if we don't get any rain at least I have this to HOPEFULLY look forward too:

Houston Area Forecast Discussion

TEMPERATURES IN HOUSTON ONCE AGAIN REACHED 100 DEGREES TODAY...
THAT`S 32 OUT OF THE LAST 33 DAYS NOW. LEANED TOWARD THE WARMEST
NAM 2M GUIDANCE SINCE THE AREA WILL REMAIN IN THE SUBSIDENT ZONE.
READINGS WILL STILL APPROACH OR EXCEED 100 MANY INLAND AREAS
SATURDAY/SUNDAY ADDING TO THE TALLIES. TEMPS WILL BE TRICKIEST
OVER THE EASTERN ZONES WHERE CLOUD COVER COULD AFFECT THEM
ESPECIALLY SUNDAY. 12Z MODEL RUNS SHOW A SIGNIFICANT AMOUNT OF
COOLING IN THE LOW LEVELS BEHIND THE FRONT...WITH 850 MB TEMPS
DROPPING TO 13-16C BY TUESDAY/WEDNESDAY AND SFC DEWPOINTS DROPPING
INTO THE 40S (POSSIBLY 30S). MIN TEMPS SHOULD EASILY FALL INTO THE
60S NEXT WEEK...WITH 50S...YES 50S...POSSIBLE IN SOME RURAL INLAND
AREAS.



Yeah, they said the beginning of the week we would only see high's in the 80-90 the end of this week and here it is Friday and yet 105 at my house again..
Member Since: September 18, 2007 Posts: 0 Comments: 1074
1532. Patrap
Quoting WaterWitch11:
god pat, the tornado warnings could last for days.



Thats the Unknown factor as these Quick TVS spinup's can do a lotta damage if they strike at night and in a Pop area.
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Quoting WhoDat1:
yeah i know and im in new orleans east near where the marsh fire was.
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Quoting Tazmanian:



in fac it has got in a little better i think wind shear have fall in a round 94L i think so 94L is giveing it one last gas






shear if am looking at this right has fall in too a round 5kt


Shear may have lessened, but it still looks very bad.
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Quoting TropicalAnalystwx13:
94L not looking so hot...Don't think it has much of a chance to become a named storm anymore.




in fac it has got in a little better i think wind shear have fall in a round 94L i think so 94L is giveing it one last gas






shear if am looking at this right has fall in too a round 5kt
Member Since: May 21, 2006 Posts: 5091 Comments: 115436
1527. FLdewey
Quoting TropicalAnalystwx13:


Sarcasm?


No... I'm betting it misses everybody.
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god pat, the tornado warnings could last for days.
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Probably has been posted already but if we don't get any rain at least I have this to HOPEFULLY look forward too:

Houston Area Forecast Discussion

TEMPERATURES IN HOUSTON ONCE AGAIN REACHED 100 DEGREES TODAY...
THAT`S 32 OUT OF THE LAST 33 DAYS NOW. LEANED TOWARD THE WARMEST
NAM 2M GUIDANCE SINCE THE AREA WILL REMAIN IN THE SUBSIDENT ZONE.
READINGS WILL STILL APPROACH OR EXCEED 100 MANY INLAND AREAS
SATURDAY/SUNDAY ADDING TO THE TALLIES. TEMPS WILL BE TRICKIEST
OVER THE EASTERN ZONES WHERE CLOUD COVER COULD AFFECT THEM
ESPECIALLY SUNDAY. 12Z MODEL RUNS SHOW A SIGNIFICANT AMOUNT OF
COOLING IN THE LOW LEVELS BEHIND THE FRONT...WITH 850 MB TEMPS
DROPPING TO 13-16C BY TUESDAY/WEDNESDAY AND SFC DEWPOINTS DROPPING
INTO THE 40S (POSSIBLY 30S). MIN TEMPS SHOULD EASILY FALL INTO THE
60S NEXT WEEK...WITH 50S...YES 50S...POSSIBLE IN SOME RURAL INLAND
AREAS.

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1523. franck
Quoting TravisBickle:
" 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" thanks Dr Masters thats my kind of language!!! off to the gulf for storm surf in the mean time :)


Are you tokkin' ta me?
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Quoting SPLbeater:

it was 60% at 2 PM,so its decreasing. i would forget about 94L, its almost gone
no it was 60% at 8am and went down to 40% at the 2pm advisory
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Quoting FLdewey:
This is much, much better.



Feesh.


Sarcasm?
Member Since: Posts: Comments:
1520. WhoDat1
Quoting bigwes6844:
man we might get 30 tronado warnings in one day.
St. Bernard Parish Tornado Warning!

I beleive the twister in myrtle grove was headed north east, might want to keep an eye out
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1519. Patrap
That 18Z GFS is not welcomed news atall,

">
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Quoting Seawall:
Hey, SE Tx folks; just sent a shower your way toward Vidor and Beaumont... Louisiana sharing!


Got it...Thank you, thank you!!
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Quoting Bluestorm5:
Why is Texas getting rejected of rain by Mother Nature? sigh... meanwhile Katia is starting to scares people here.
even the storms dont like texas poor texas forgot about again
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" 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" thanks Dr Masters thats my kind of language!!! off to the gulf for storm surf in the mean time :)
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Quoting 996tt:


Yep, Texas is like if we cannot have no one can have

Why don't you page up about three screens and look at Dr. Masters' Drought graphic he posted in today's blog.
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Why is Texas getting rejected of rain by Mother Nature? sigh... meanwhile Katia is starting to scares people here.
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1513. WxLogic
@66HR 18Z GFS:

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1512. ackee
Quoting stormpetrol:
I'm just wondering if some watches should go up for the extreme Northern Antilles, I know Katia is supposed pass well north of the Islands, but right now she seems to be on a westward track once again!

Link
look WSW to me wondering too
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1511. Patrap
Quoting sarahjola:

hey pat! can you answer this for me?
i have a question and would be very greatful if anyone can answer it. on the news a little while ago and now as i look at wv it seems as though the dry air is not so dry anymore, am i seeing this right? and if the dry air is going away, then isn't that going to help lee strengthen? also does anyone still think that lee will be around until tuesday as first thought? also does anyone think that lee still has the potential to become a hurricane? thanks so much if you can answer! also i am hearing that lee is falling apart. is there any truth to that? thanks for taking the time if you can.


There is a Chance TS Lee could reach Cane Status before Landfall as the environment is getting better by the Hour.

But the Effects will be the same regardless if a Strong TS or Cat 1, Rain and Tornadoes are the threats as flooding is too.
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Quoting Patrap:


A Midland WR-100 NOAA radio is 30 Bucks at any Walgreens,, or one can use TWC for the TONE alert,but if your power fails,,wait for the Train Sound


I will go to Walgreens then and take my chances. Do not want to hear the train sound.
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1508. 996tt
Quoting sarahjola:
is lee weakening? whats all this about with the " thanks texas for killing lee"?


Ah, joke
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1507. FLdewey
This is much, much better.



Feesh.
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gotta love all the rain louisiana is getting they need it
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Quoting bigwes6844:
idk we'll see at the 8pm advisory its at 40%

it was 60% at 2 PM,so its decreasing. i would forget about 94L, its almost gone
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1504. pcola57
Quoting TropicalAnalystwx13:
94L not looking so hot...Don't think it has much of a chance to become a named storm anymore.



Sounds Like Lee is wreakening havoc as we speak with tornados.
I don't relish the fact that possibly 3 days and nights of tornado watches may be in my future.
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1503. Patrap
Quoting nolacane2009:
Thank you. Is there an IPhone app that I can get that will auto alert me of any warnings in the chance I do sleep tonight LOL?


A Midland WR-100 NOAA radio is 30 Bucks at any Walgreens,, or one can use TWC for the TONE alert,but if your power fails,,wait for the Train Sound
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Quoting ringeaux:


Do you mean Leeville? However that is in LaFourche Parish. Leesville is in Vernon Parish.
LOL Leeville sorry
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Quoting Patrap:


Any inbound feeder cell can spawn a TVS.

Have your NOAA Radio handy with Battery Back up as that threat will be a serious one thru this event.

hey pat! can you answer this for me?
i have a question and would be very greatful if anyone can answer it. on the news a little while ago and now as i look at wv it seems as though the dry air is not so dry anymore, am i seeing this right? and if the dry air is going away, then isn't that going to help lee strengthen? also does anyone still think that lee will be around until tuesday as first thought? also does anyone think that lee still has the potential to become a hurricane? thanks so much if you can answer! also i am hearing that lee is falling apart. is there any truth to that? thanks for taking the time if you can.
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1500. 996tt
Quoting bohonkweatherman:
Watch out for the Texas Terminators. LOL


Yep, Texas is like if we cannot have no one can have
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1499. Patrap
Quoting ringeaux:


Do you mean Leeville? However that is in LaFourche Parish. Leesville is in Vernon Parish.




BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
429 PM CDT FRI SEP 2 2011

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
SOUTHEASTERN LAFOURCHE PARISH IN SOUTHEAST LOUISIANA...
THIS INCLUDES THE CITIES OF...LAROSE...GALLIANO...CUT OFF...
EAST CENTRAL TERREBONNE PARISH IN SOUTHEAST LOUISIANA...

* UNTIL 500 PM CDT

* AT 423 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 8 MILES EAST OF LEEVILLE...OR 18 MILES SOUTHEAST OF GALLIANO...MOVING NORTHWEST AT
40 MPH.
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Quoting nolacane2009:


Well I guess that would make sense. I should have stated the City Of New Orleans instead of the Mayor. Or even the Governors Office. Atleast hopefully this will be taken care of.
On privet land and expensive access I understand. If they'd jumped on it right away been a clamor about wasted $$ and political connections. Glad I'm not a politico d@mned if you do . . .
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Quoting Patrap:


Any inbound feeder cell can spawn a TVS.

Have your NOAA Radio handy with Battery Back up as that threat will be a serious one thru this event.
Thank you. Is there an IPhone app that I can get that will auto alert me of any warnings in the chance I do sleep tonight LOL?
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Quoting GTcooliebai:
Nah they shouldn't waste another name, Maria will come off the coast of Africa, and Nate will have to wait :)
idk we'll see at the 8pm advisory its at 40%
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1493. CC45
Please correct if I'm wrong, but it appears TS Lee is trying to absorb the ULL to it's west. I thought the ULL was forecasted to move out and away from Lee. So if it gets absorbed instead, wouldn't that change the forecasted track and intensity of Lee?
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Hi, I live in Houma la, should we board up within tr next couple of days?! No one knows what to do with this storm!
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1491. Patrap



828
WFUS54 KLIX 022157
TORLIX
LAC087-022230-
/O.NEW.KLIX.TO.W.0074.110902T2157Z-110902T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
457 PM CDT FRI SEP 2 2011

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
NORTHERN ST. BERNARD PARISH IN SOUTHEAST LOUISIANA...

* UNTIL 530 PM CDT

* AT 456 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 9 MILES
NORTHEAST OF YSCLOSKEY...OR 25 MILES EAST OF CHALMETTE...MOVING
WEST AT 30 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
VIOLET

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

THE SAFEST PLACE TO BE DURING A TORNADO IS UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM
WINDOWS.



LAT...LON 2985 8990 2991 8995 2999 8993 3000 8991
2998 8988 3001 8985 2995 8984 2994 8982
2996 8972 2995 8971 2992 8974 2987 8966
2989 8960 3000 8959 2997 8943 2979 8947
TIME...MOT...LOC 2157Z 101DEG 27KT 2990 8955
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94L not looking so hot...Don't think it has much of a chance to become a named storm anymore.

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Quoting bigwes6844:
another tornado warning in terrebonne parish near Leesville


Do you mean Leeville? However that is in LaFourche Parish. Leesville is in Vernon Parish.
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man we might get 30 tronado warnings in one day.
St. Bernard Parish Tornado Warning!
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104 here today but very windy.
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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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