Little change to Isaac, but storm poses a serious storm surge threat

By: Dr. Jeff Masters , 3:25 PM GMT on August 27, 2012

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Tropical Storm Isaac has changed little in strength or organization this morning, as the storm heads northwest at 14 mph towards the Central Gulf Coast. There are two hurricane hunter aircraft in the storm, and Isaac's central pressure held steady at 989 mb at the 8:30 am and 9:15 am center fixes. Top surface winds remain near 65 mph. Infrared and visible satellite loops show that Isaac is a very large storm, but isn't very symmetric. Heavy thunderstorm activity is lacking on the southeast side, where 10 knots of wind shear is driving dry air into the circulation. The center is surrounded by a ring of echoes now, which was not the case on Sunday. However, the echoes are weak. The 8:30 am center report from the Hurricane Hunters reported about half of a ragged eyewall, but the 9:15 am report did not mention any evidence of an eyewall. Isaac will have to form an eyewall in order to intensify significantly.


Figure 1. Morning satellite image of Isaac. Note the lack of heavy thunderstorm activity on the storm's southeast side, where dry air and wind shear are combining to interfere with development.

Isaac's rains
Isaac's heaviest rains have fallen along a swath from the east coast of Florida near West Palm Beach to the center of the state, just south of Orlando. West Palm Beach received 7.57" of rain from Isaac as of 10 am EDT this morning. A trained spotter in Western Boynton Beach reported 10" of rain from midnight to midnight Sunday. Heavy rains from Isaac are lingering over Cuba but have ended in Haiti and the Dominican Republic; flash floods in Haiti from Isaac's torrential rains killed at least nineteen, and two died in the Dominican Republic.


Figure 2. Radar-estimated rainfall from Melbourne, Florida radar shows that Isaac has dumped a wide swath of 3+ inches of rain (orange colors) across the state.

Latest model runs for Isaac
The latest set of 0Z and 06Z (8 pm and 2 am EDT) model runs are fairly unified taking Isaac ashore near Southeast Louisiana late Tuesday night or early Wednesday morning, but continue to show major differences in what happens after that. It is still uncertain if a trough of low pressure passing to the north of Isaac will be able to turn the storm due north, as the ECMWF model is predicting, or bypass the storm, allowing a more west-northwest motion into western Louisiana, like the GFS model is predicting. In either case, Isaac is likely to slow down as it approaches the coast, which will increase the damage potential fro m its wind, storm surge, and rains. The latest 8-day precipitation forecast from the GFS model calls for 10 - 20 inches of rain over much of Louisiana. The ECMWF model predicts that these heavy rains will fall more over Mississippi. It appears likely that Arkansas will see some heavy rains from Isaac late in the week, which would help put a dent in the exceptional drought conditions there.


Figure 3. Predicted precipitation for the 8-day period from 2 am Monday August 27 to 2 am Tuesday September 4, from the 2 am EDT August 27 run of the GFS model. This model is predicting a wide swath of 5 - 10 inches of rain (orange colors) will affect portions of Louisiana. Additional very heavy rains are predicted for the Midwest, as moisture from Isaac interacts with a cold front. Image credit: NOAA/NCEP.

Intensity forecast for Isaac
Isaac is currently crossing over a relatively cool eddy of water, which will keep intensification slow today. By tonight, the total heat content of the waters increases, which should aid intensification. Low wind shear of 10 knots or less is likely until landfall. An analysis of upper level winds from the University of Wisconsin CIMSS shows that upper-level outflow to the north is not as strong as yesterday, which should also slow intensification today. The models forecast the upper-level outflow should improve by Tuesday. A storm this large will have trouble undergoing rapid intensification, and Isaac's most likely intensity at landfall will be as a Category 1 hurricane, which is what most of the intensity models are forecasting.


Figure 4. Track of Hurricane Gustav of 2008, which followed a path very similar to that of Isaac's predicted path.

Storm surge forecast for Isaac
Storm surge is the primary damage threat from Isaac. Isaac is a huge storm, with tropical storm-force winds that extend out 205 miles from the center. For comparison, Hurricane Katrina at landfall had tropical storm-force winds that extended out 230 miles from its center. Isaac's large size will enable it to set a large area of the ocean into motion, which will generate a large storm surge once the storm approaches land on the Gulf Coast. Water levels at Shell Beach, Louisiana, just east of New Orleans, were already elevated by 1' this morning. Conversely, water levels have fallen by 2' this morning at St. Petersburg, Florida, where strong offshore winds due to Isaac's counter-clockwise circulation have carried water away from the coast. The latest 6:30 am EDT Integrated Kinetic Energy analysis from NOAA's Hurricane Research Division put the destructive potential of Isaac's winds near 0.6 on a scale of 0 to 6, but the destructive potential of Isaacs's storm surge was 2.1 on a scale of 0 to 6. I expect this destructive potential will rise above 3 by time Isaac makes landfall, making Isaac's storm surge similar to that generated by Category 2 Hurricane Gustav of 2008, which followed a path very similar to Isaac's predicted path. Gustav brought a storm surge characteristic of a Category 1 hurricane to New Orleans: 9.5' to Lake Borgne on the east side of the city. A higher Category 2-scale surge occurred along the south-central coast of Louisiana, and was 12.5' high in Black Bay, forty miles southeast of New Orleans. Recent model runs indicate Isaac may slow down to a forward speed under 5 mph on Tuesday evening and Wednesday morning, close to the coast. If Isaac is just offshore at this time, the coasts of Southeast Louisiana, Mississippi, Alabama, and the Florida Panhandle will be exposed to a large storm surge with battering waves for two high tide cycles. This sort of extending pounding will be capable of delivering more damage than the storm surge of Hurricane Gustav of 2008.

The affect of storm size and angle of approach on storm surge
A 2008 paper by Irish et al., The influence of storm size on hurricane surge, found that large storms like Isaac are capable to delivering a 30% larger storm surge to the coast than a smaller storm with the same maximum wind speeds. The angle with which the storm hit the coast is important, too--a storm moving due north or slightly east of north will deliver a storm surge about 10% greater than a storm moving NNW or NW. Consult our Storm Surge pages for detailed information on what the risk is for the coast. I expect that Isaac's storm surge will be about 30% higher than the typical surge one would expect based on the maximum wind speeds.

Isaac's storm surge will provide the first test of the newly-completed New Orleans levee system upgrade. In the wake of the disastrous storm surge flooding from Hurricane Katrina in 2005, Congress appropriated $14.5 billion to upgrade the New Orleans levee system to withstand a Category 3 hurricane storm surge. Katrina was a Category 3 storm at landfall, but the storm passed far enough to the east of the city that its storm surge was characteristic of a Category 1 - 2 storm at the places where the city's flood walls and levees failed. The new flood defenses were only partially completed in time for the arrival of Hurricane Gustav in 2008, which hit Central Louisiana as a Category 2 storm. Gustav brought a storm surge characteristic of a Category 1 hurricane to New Orleans: 9.5' to Lake Borgne on the east side of the city. Since that time, the imposing 2-mile long IHNC Flood Barrier has been completed to block off the funnel-shaped pair of canals on the east side of the city. I expect New Orleans' new flood defenses will be able to hold back Isaac's surge, but areas outside the levees are at risk of heavy storm surge damage.


Figure 5. A portion of New Orleans' new $14.5 billion dollar flood defenses, as taken from an Army Corps of Engineers map.

New Orleans flood defense info
Army Corps of Engineers map of the new flood defenses
Army Corps of Engineers video showing the flood defenses
New York Times article, Vast Defenses Now Shielding New Orleans

Invest 97L off the coast of Africa
A tropical wave (Invest 97L) is located in the Middle Atlantic, about 1050 miles west-northwest of the Cape Verde Islands. The storm has a modest amount of spin and heavy thunderstorms, and is under moderate wind shear. In their 8 am EDT Tropical Weather Outlook, NHC gave 97L a 30% chance of developing by Wednesday morning. None of the reliable models foresee that 97L will be a threat to the Lesser Antilles Islands, and high wind shear should begin to tear the disturbance apart on Tuesday.

Another tropical wave that moved off the coast of Africa on Sunday is located just south of the Cape Verde Islands. This disturbance is moving west at 10 - 15 mph, and could arrive in the Lesser Antilles around September 2. Several models develop the disturbance into a tropical depression late this week, and NHC is giving the disturbance a 10% chance of becoming a tropical depression by Wednesday morning.

Angela Fritz will have a new post here by 6 pm EDT. I'm in Atlanta to help out The Weather Channel with their on-air hurricane coverage, and will doing a few 3-minute tropical updates at 30 minutes past the hour between 2:30 - 7:30 pm EDT today.

Jeff Masters

Tropical Storm Isaac (chelina)
View from the north side of the Sunshine Skyway Bridge.
Tropical Storm Isaac
our street at noon today (seflagamma)
Aug 26, 2012: Isaac floods our street really bad. Now nearly 11
our street at noon today

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Quoting moonlightcowboy:
There is an AMAZING phenomenon in the sky right now over south MS.

BE VERY CAREFUL - DO NOT LOOK RIGHT AT THE SUN!!! But, put your hands together to form a flat triangle to cover as you extend your arms up towards the sun.

Then look all the way around the sun, a FULL CIRCULAR RAINBOW around the sun! Awesome! :) But be careful for your eye's safety.


Ice crystals in the upper atmosphere? The cirrus overcast from ISAAC?
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Quoting kmanislander:


It would appear so. The dry slot can be seen in this image almost closed off which should enable the storm to build an eyewall very soon assuming no deterioration in the current trend. The faster winds are allowing the system to wrap the convection all the way around the center.

This is a strengthening storm that could see winds jump 10 to 15 MPH within two to three hours IMO.



Agreed. Good to see you, Kman! Missed your commentary.
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Hopefully it's still Stewart's shift throughout the remainder of the afternoon lol. :P
Member Since: September 2, 2009 Posts: 130 Comments: 21091
Quoting CybrTeddy:
AL, 09, 2012082718, , BEST, 0, 261N, 859W, 60, 984, TS

Very close to hurricane status, could very well be one by 5pm if recon finds higher winds.
is it still on a 305 track as I saw earlier or has that changed.was a t hospital so missed this pm. Shout out from destin. Still have my guard up. U r a good voice of reason during tuff times.
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Quoting seflagamma:
Just back for check up.. thanks again everyone.

I don't think anyone figured on getting this line of storms on east coast of Fla for so long...

men wading down our street it is above their knees..

have not checked gauge yet but got to be now close to 12" of rain..

looks like a lake out front.


Hope the water stays out of your Gamma - and drains quickly :)
Member Since: September 5, 2007 Posts: 0 Comments: 3481
Quoting Bitmap7:


So at/near cat1? The pressure also seems to have gone up a bit at 985mb fromm 984mb.


Don't pay much attention to very small pressure changes. The change was probably less than a full mb. Slight fluctuations are not uncommon, and do no necessarily indicate weakening.
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BROWARD FL-PALM BEACH FL-
221 PM EDT MON AUG 27 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM EDT FOR
EASTERN PALM BEACH AND EASTERN BROWARD COUNTIES...

AT 218 PM EDT...THE PUBLIC REPORTED SIGNIFICANT FLOODING IN BROWARD
COUNTY JUST WEST OF PINE ISLAND ROAD WITH 12 TO 13 INCHES OF WATER
FLOWING INTO HOMES. THE LATEST RAINFALL ESTIMATES FROM RADAR
INDICATE RAINFALL RATES AROUND 1 TO 3 INCHES PER HOUR CONTINUING
OVER THE SAME AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO GOLDEN
LAKES...PORT OF PALM BEACH...NORTH COUNTY AIRPORT...NORTH PALM
BEACH...WEST PALM BEACH...WELLINGTON...TEQUESTA...ROYAL PALM BEACH...
RIVIERA BEACH...PALM BEACH GARDENS...PALM BEACH...LION COUNTRY
SAFARI...LAKE WORTH...JUPITER...JUNO BEACH...HAVERHILL AND GREENACRES
CITY
Member Since: August 6, 2011 Posts: 4 Comments: 36847
Rain gauge now shows 4 inches as of 4:00 a.m. this morning in New Smyrna Beach, Fl. A rain train is still to come according to radar.
Member Since: August 17, 2010 Posts: 0 Comments: 30
Quoting kmanislander:


It would appear so. The dry slot can be seen in this image almost closed off which should enable the storm to build an eyewall very soon assuming no deterioration in the current trend. The faster winds are allowing the system to wrap the convection all the way around the center.

This is a strengthening storm that could see winds jump 10 to 15 MPH within two to three hours IMO.



Wow he may save his best for his last gasp. Best he has EVER looked so far IMO.
Member Since: February 2, 2010 Posts: 0 Comments: 1456
Quoting RitaEvac:


Was home for lunch and I swear I saw a hurricane hunter plane going over me coming down I-45 from Ellington Airport, it was loud which caught my attention and then headed towards gulf gaining altitude. Looked like a bomber plane


Some of them were - at least the P3s - but Anti Sub
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Quoting Cotillion:
VDM estimates it's now a hurricane.

D. Estimated (by SFMR or visually) Maximum Surface Wind: 64kts (~ 73.6mph)

Be an interesting decision to see what they go with.


I cannot see them upgrading Isaac to a hurricane just because of a couple of SFMR readings that may or may not be representative of the overall maximum winds, while also not finding any flight level winds at hurricane strength.
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center about 280 miles from the tip of LA...
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Quoting odinslightning:
i don't trust the wind speed they are reporting.....how can Isaac have lost 15 mb and not gained some speed, even up to 70....something isnt right with that.....


The readings are correct. The problem is with Isaac not being strong enough yet to realize those higher winds speeds you're expecting.
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Quoting odinslightning:
i don't trust the wind speed they are reporting.....how can Isaac have lost 15 mb and not gained some speed, even up to 70....something isnt right with that.....


It's because he is so large. He MUST continuously drop pressure to maintain his current windfield.
Member Since: June 24, 2012 Posts: 0 Comments: 472
Quoting HoustonTxGal:


Good, I am NOT seeing things then

I am thinking there is an error somewhere, but I havent't looked enough to confirm it ...too busy evac-ing in Intracoastal City, La.
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Quoting Bitmap7:


So at/near cat1? The pressure also seems to have gone up a bit at 985mb fromm 984mb.


I think 1 mb is very insignificant
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Quoting odinslightning:
i don't trust the wind speed they are reporting.....how can Isaac have lost 15 mb and not gained some speed, even up to 70....something isnt right with that.....
Large storms (Isaac, Alex, Ike) can have pressures normally indicative of storms 1 or 2 categories higher.
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Quoting tennisgirl08:


Did the HWRF and CMC shift East?


Yep. GFDL is the only outlier at this point. GFS is still reasonable with an extreme Southeast Louisiana landfall.
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Track can move another 100 miles west, SE TX still would be in the clear
Member Since: July 14, 2008 Posts: 1 Comments: 9628
Quoting Autistic2:
So NO chance of this thing going NE now, correct?

So I can plan on working in the yard Tuesday?


Not until well after landfall. But anyone east of the land falling center can experience gust from squalls in excess of 50 knots all the way to the east coast of Florida.
Member Since: February 2, 2010 Posts: 0 Comments: 1456
Quoting moonlightcowboy:



Glad you saw it. It was really intense when I was watching it a bit ago.
It's still visible, but barely.
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Quoting odinslightning:
i don't trust the wind speed they are reporting.....how can Isaac have lost 15 mb and not gained some speed, even up to 70....something isnt right with that.....


size
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Quoting Skyepony:
Product: Air Force Vortex Message (URNT12 KNHC)
Transmitted: 27th day of the month at 18:26Z
Aircraft: Air Force Aircraft (Last 3 digits of the tail number are 306)
Storm Number & Year: 09L in 2012
Storm Name: Isaac (flight in the North Atlantic basin)
Mission Number: 27
Observation Number: 06
A. Time of Center Fix: 27th day of the month at 17:52:10Z
B. Center Fix Coordinates: 26°07'N 85°59'W (26.1167N 85.9833W)
B. Center Fix Location: 252 miles (405 km) to the WSW (239°) from Tampa, FL, USA.
C. Minimum Height at Standard Level: 1,296m (4,252ft) at 850mb
D. Estimated (by SFMR or visually) Maximum Surface Wind: 64kts (~ 73.6mph)
E. Location of the Estimated Maximum Surface Wind: 40 nautical miles (46 statute miles) to the NW (318°) of center fix
F. Maximum Flight Level Wind Inbound: From 57° at 54kts (From the ENE at ~ 62.1mph)
G. Location of Maximum Flight Level Wind Inbound: 37 nautical miles (43 statute miles) to the NW (319°) of center fix
H. Minimum Sea Level Pressure: 985mb (29.09 inHg)
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 18°C (64°F) at a pressure alt. of 1,538m (5,046ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 22°C (72°F) at a pressure alt. of 1,544m (5,066ft)
K. Dewpoint Temp & 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, Radar, Wind, Pressure and Temperature
N. Fix Level: 850mb
O. Navigation Fix Accuracy: 0.02 nautical miles
O. Meteorological Accuracy: 0.5 nautical miles
Remarks Section:
Maximum Flight Level Wind: 54kts (~ 62.1mph) in the northwest quadrant at 17:39:00Z


So at/near cat1? The pressure also seems to have gone up a bit at 985mb fromm 984mb.
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So has the recon plane confirmed which way Isaac is currently moving. The NHC has at the latest advisory NW but some are saying in here that he's moving W. Can someone tell me which way he is moving??
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734. BlxMS
Quoting CaneHunter031472:


It's going to pretty much follow a similar track than Katrina ON IT's ANIVERSARY!! Thank God it is far more weaker.


MS...In the middle of prepping abit so can't stay at the puter...Are you SURE (serious) about all of these 12z runs??? That's truly hard to imagine...Has the trof deepened THAT much??? and these are 12z today, right???? Please respond back asap???
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Quoting tkeith:
It looks like the eastern side is starting to insulate itself from some of the dry air too.

The folks here in NOLA seem to be taking this storm serious. Alot of preps and already alot of people leaving early. I just drove in from Baton Rouge and from the City to the I-55 exit is packed.


It would appear so. The dry slot can be seen in this image almost closed off which should enable the storm to build an eyewall very soon assuming no deterioration in the current trend. The faster winds are allowing the system to wrap the convection all the way around the center.

This is a strengthening storm that could see winds jump 10 to 15 MPH within two to three hours IMO.

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Vortex fix shows the minimum 850 mb height down to 1296 meters from 1334 meters, he is certainly trying to deepen and tighten up. Late last night he almost got there but failed to become completely vertically stacked while building its eyewall and lost his organization. Let's see what happens this time.
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Even though the storm is showing landfall just east of Lafayette, LA, the rain totals for a few days are only 1-2"? I got more rain than that 3 weekends ago. Or, does this storm have more time to organize itself and move further West to where we might see some East side of it?
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729. 7544
east fla getting hammerd from issac tail that broke off more to come wasnt this very unexpected looks like their even getting ts conditions from the post on here they keep expanding the flood warning went from 6pm to 8pm now till 1030 pm stay safe all hope your pwer stays on to keep us update from your local areas
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Quoting Dsntslp:
At least one Saint Lucie County School-Northport- is calling for students to be picked up right now when they are normally released at 4pm.

Largo,
Thank you for all of the updates and links.
Much appreciated, truly.
thanks, my eyes are going lol..never saw so many warnings etc in one day, hard keeping up with them all
Member Since: August 6, 2011 Posts: 4 Comments: 36847
985 mb in dropsonde
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Portlight team working in Biloxi can be seen here...they are helping secure a disability advocacy office...then will be facilitating evac...and surveying shelters to assure accessibility

Link

Stormjunkie is the bossy one with the lousy attitude...
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Quoting tkeith:
You can see it from here too .



Glad you saw it. It was really intense when I was watching it a bit ago.
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Quoting trHUrrIXC5MMX:

why no pressure?


Interesting as it lookes like a lot of the reading on this flight arn't showing the surfce pressure
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i don't trust the wind speed they are reporting.....how can Isaac have lost 15 mb and not gained some speed, even up to 70....something isnt right with that.....
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Quoting jeffs713:

Probably was an HH. I'm not sure if they are flying the C-130s or the P-3s out of Ellington, tho. For an HH, it would have straight wings (perpendicular to the body). 4 engines for both.


P-3s are flying out of Jacksonville today.


Link
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VDM estimates it's now a hurricane.

D. Estimated (by SFMR or visually) Maximum Surface Wind: 64kts (~ 73.6mph)

Be an interesting decision to see what they go with.
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So NO chance of this thing going NE now, correct?

So I can plan on working in the yard Tuesday?
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Based on some of the new coordinates that readers are reporting, it looks like Isaac seems to now have a more westerly track. Seems to be the case from satellite imagery as well. I wonder if the latest NHC track will move west now?
Member Since: July 28, 2009 Posts: 0 Comments: 264
At least one Saint Lucie County School-Northport- is calling for students to be picked up right now when they are normally released at 4pm.

Largo,
Thank you for all of the updates and links.
Much appreciated, truly.
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Quoting TXEER:
Is anyone else tired of all this New Orleans stuff?

Good grief...it's going to affect Bama and MS too...just like Katrina.

Aren't there people in MS and AL as well?
]

It may not even hit any one of them. I still think this is a TX/LA border storm. Just my opinion though
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Quoting TXEER:
Is anyone else tired of all this New Orleans stuff?

Good grief...it's going to affect Bama and MS too...just like Katrina.

Aren't there people in MS and AL as well?
yes and it would be great if the folks in those other states would be posting weather alerts for their area as well, we arent the NWS we are just people posting about our weather and the troubles we are going thru right now, folks in other states can do so also, especially now with this HUGE storm thats going to affect many states ok
Member Since: August 6, 2011 Posts: 4 Comments: 36847
Product: Air Force Vortex Message (URNT12 KNHC)
Transmitted: 27th day of the month at 18:26Z
Aircraft: Air Force Aircraft (Last 3 digits of the tail number are 306)
Storm Number & Year: 09L in 2012
Storm Name: Isaac (flight in the North Atlantic basin)
Mission Number: 27
Observation Number: 06
A. Time of Center Fix: 27th day of the month at 17:52:10Z
B. Center Fix Coordinates: 26°07'N 85°59'W (26.1167N 85.9833W)
B. Center Fix Location: 252 miles (405 km) to the WSW (239°) from Tampa, FL, USA.
C. Minimum Height at Standard Level: 1,296m (4,252ft) at 850mb
D. Estimated (by SFMR or visually) Maximum Surface Wind: 64kts (~ 73.6mph)
E. Location of the Estimated Maximum Surface Wind: 40 nautical miles (46 statute miles) to the NW (318°) of center fix
F. Maximum Flight Level Wind Inbound: From 57° at 54kts (From the ENE at ~ 62.1mph)
G. Location of Maximum Flight Level Wind Inbound: 37 nautical miles (43 statute miles) to the NW (319°) of center fix
H. Minimum Sea Level Pressure: 985mb (29.09 inHg)
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 18°C (64°F) at a pressure alt. of 1,538m (5,046ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 22°C (72°F) at a pressure alt. of 1,544m (5,066ft)
K. Dewpoint Temp & 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, Radar, Wind, Pressure and Temperature
N. Fix Level: 850mb
O. Navigation Fix Accuracy: 0.02 nautical miles
O. Meteorological Accuracy: 0.5 nautical miles
Remarks Section:
Maximum Flight Level Wind: 54kts (~ 62.1mph) in the northwest quadrant at 17:39:00Z

Maximum surface winds so close to that magical (or not so) number. Expect a hurricane upgrade by 5pm EST.

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D. Estimated (by SFMR or visually) Maximum Surface Wind: 64kts (~ 73.6mph)

Latest VDM has Issac at Hurricane strength.
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Dropsonde has brought back a 985mb MSLP with 5mph of surface winds. The splash location was 26.09N 86W.

000
UZNT13 KNHC 271827
XXAA 77188 99261 70860 08166 99985 27415 09504 00636 ///// /////
92557 25425 36002 85301 22256 33007 88999 77999
31313 09608 81752
61616 AF306 2709A ISAAC OB 07
62626 EYE SPL 2609N08600W 1754 MBL WND 02003 AEV 20802 DLM WND 34
502 984842 WL150 08003 084 REL 2609N08600W 175241 SPG 2610N08599W
175424 =
XXBB 77188 99261 70860 08166 00985 27415 11860 22832 22850 22256
21212 00985 09504 11969 02502 22953 34506 33921 06501 44866 27502
31313 09608 81752
61616 AF306 2709A ISAAC OB 07
62626 EYE SPL 2609N08600W 1754 MBL WND 02003 AEV 20802 DLM WND 34
502 984842 WL150 08003 084 REL 2609N08600W 175241 SPG 2610N08599W
175424 =
;
Member Since: September 2, 2009 Posts: 130 Comments: 21091
Quoting TXEER:
Is anyone else tired of all this New Orleans stuff?

Good grief...it's going to affect Bama and MS too...just like Katrina.

Aren't there people in MS and AL as well?


Yeah, the folks in New Orleans are tired of it too.
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Quoting MiamiHurricanes09:
If they find 65kt data somewhere else in the cyclone I'd expect a special advisory prior to the 5p.m package.


we need the drop sonde data as well.
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Quoting moonlightcowboy:
There is an AMAZING phenomenon in the sky right now over south MS.

BE VERY CAREFUL - DO NOT LOOK RIGHT AT THE SUN!!! But, put your hands together to form a flat triangle to cover as you extend your arms up towards the sun.

Then look all the way around the sun, a FULL CIRCULAR RAINBOW around the sun! Awesome! :) But be careful for your eye's safety.
You can see it from here too .
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Quoting presslord:
I wonder if Stephanie would rather cover a hurricane...or a....haboob...


press... you really like Stephanie. Hope the wife doesn't get jealous. :)
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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.