Dr. Jeff Masters' WunderBlog

Hurricane Irene continues to become better organized, takes aim at Bahamas
Posted by: Dr. Jeff Masters, 22. elokuuta 2011 klo 21:12 (GMT) +36
Hurricane Irene remains a category 1 on the Saffir Simpson hurricane wind scale, and continues to be a U.S. landfall threat for anywhere from southern Florida to North Carolina. In the 5pm EDT update from the National Hurricane Center, Irene had maximum sustained winds of 80 mph. Irene is moving west-northwest at 13 mph along the northern Hispaniola coastline. Estimates from radar suggest Puerto Rico has seen anywhere from 1 to 5 inches of rain from Irene so far, with the heaviest rain probably being enhanced by topography. Satellite imagery shows a new burst of intense thunderstorm activity began near the center of the hurricane this afternoon, and despite land interaction, Irene continues to become larger and better organized, with tropical storm-force (39 mph) winds extending 160 miles away from the center on the northeast side of the hurricane. The latest Hurricane Hunter mission found maximum sustained winds just above 80 mph, with a minimum central pressure of 988 millibars. The strongest winds continue to be found on the north side of the storm. Another Hurricane Hunter mission is scheduled for this evening, and a NOAA Gulfstream is on its way to Irene as I type.


Figure 1. True-color image of Hurricane Irene taken at 11:20am EDT Monday August 22, 2011, shortly after Irene moved off the coast of Puerto Rico. At the time, Irene was a Category 1 hurricane with 80 mph winds. Image credit: NASA.

Track forecast for Irene
The models agree that the center of Irene will stay north of Hispaniola, which will allow the storm to continue to organize. The question that remains is how the trough of low pressure, which is expected to move across the Eastern U.S. on Wednesday and Thursday, will affect Hurricane Irene. The timing and strength of this trough, as well as the intensity of the hurricane, will determine just how quick Irene will turn away from the U.S. coast, if at all. This afternoon, the GFDL has finally started to inch its forecast track to the east, with a landfall in southern Florida. Both the HWRF and the UKMET models are suggesting a landfall in South Carolina, and the ECMWF and the GFS are forecasting a brush with the Outer Banks of North Carolina. The official forecast from the National Hurricane Center is a track north of Hispaniola over the next 24 hours, and through the Bahamas Wednesday and Thursday. While the center of the Hurricane Center's cone of uncertainty has Irene making landfall near the North Carolina/South Carolina border, it's important to note that the error in 4 and 5 day track forecasts remains high—around 200 miles in either direction. The official track has nudged a bit east since this morning, which reduces the threat to southern Florida, but increases the threat to the Carolinas.

Intensity forecast for Irene
The environment around Hurricane Irene remains moist, and wind shear is expected to remain relatively low (5 to 15 knots) along its forecast path over the next 5 days. Sea surface temperatures are certainly warm enough (29-30°C) to support intensification to a major hurricane (category 3+). Irene is still disorganized on its south side due to land interaction and dry air, but recent satellite imagery suggests increasing outflow at high levels to the south of the center, which is necessary for the hurricane to intensify. Both the GFS and the ECMWF are forecasting Irene to develop into a very large and intense hurricane. The National Hurricane Center expects Irene to intensify to a category 2 hurricane tomorrow evening as it moves away from Hispaniola. Beyond that, Irene will most likely intensify into a category 3 major hurricane with maximum sustained winds around 110 mph. Like Jeff said this morning, however, Irene could just as easily remain a category 2, or even reach category 4 wind speeds. In any case, Irene will be a powerful hurricane and a serious threat to the Bahamas and the East Coast of the United States.

Angela
Categories: Hurricane
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1351. TBPauly 23. elokuuta 2011 klo 00:18 (GMT)    
Quoting Grandpato4:
I do not really ever recall them issuing a special advisory this far out. Watches for the FL coast may be the reason?


Last time they had to update the cone (IIRC) was during Hurricane Charley in 2004...
Member Since: 14.08.2008 Posts: 0 Comments: 25
1352. MZT 23. elokuuta 2011 klo 00:18 (GMT)    
Quoting P451:

.

It's not worth trying to educate on that matter. I've tried for two days to no avail.
Very powerful storms are very prone to wobbling too. They kind of "slolam" back and forth. Yeah, lots of eyeballs on the blog want to be the first to call a change of direction and say the NHC is wrong.
Member Since: 24.09.2005 Posts: 0 Comments: 775
1353. MiamiHurricanes09 23. elokuuta 2011 klo 00:18 (GMT)    
Quoting jitterboy:

AST ??
Yeah...basically EDT.
Member Since: 2.09.2009 Posts: 129 Comments: 19976
1354. Orcasystems 23. elokuuta 2011 klo 00:18 (GMT)    
Quoting Grandpato4:
I do not really ever recall them issuing a special advisory this far out. Watches for the FL coast may be the reason?


You don't suppose it might be for the people between the Hurricane and CONUS do you???
Member Since: 1.10.2007 Posts: 77 Comments: 26077
1355. CCSoFLA79 23. elokuuta 2011 klo 00:18 (GMT)    
Quoting brianc:
Interesting convo with Norcross and Cantore on TWC...Byran explained that the HRWF and GFDL are "hurricane" models as opposed to the atmospheric flow models that have clustered around NC/Cape Hatterus...
Byran then stated that TVCN is a blend of all the models....this may explain why, given GFDL's intransigence, the NHC has been reluctant to sound the all clear for FL...and in fact, their "cone" has been consistently a blend of these three models.
BTW, it's amusing watching Cantore trying to make up with excitability what Norcross provides with erudtion.


wow....I had to look up about 20 of those words.. :-o
Member Since: 4.08.2011 Posts: 0 Comments: 23
1356. AWeatherLover 23. elokuuta 2011 klo 00:18 (GMT)    
Increasing wind speed by 15 knots per NHC call.
Member Since: 2.11.2007 Posts: 0 Comments: 431
1357. charlottefl 23. elokuuta 2011 klo 00:19 (GMT)    
Wind field is beginning to expand. TS Force winds now extend 160 miles from the center.
Member Since: 18.12.2006 Posts: 7 Comments: 2672
1358. earthlydragonfly 23. elokuuta 2011 klo 00:19 (GMT)    
Quoting Drakoen:
Eyewall about 80% complete based on the latest radar and microwave imagery.


Very scary storm with an 80% eyewall and 100mph winds. Potential is well...... wow
Member Since: 1.07.2005 Posts: 10 Comments: 1649
1359. chrisdscane 23. elokuuta 2011 klo 00:19 (GMT)    
Quoting Grandpato4:
I do not really ever recall them issuing a special advisory this far out. Watches for the FL coast may be the reason?




im a huuuge wishcaster here in miami,fl even i am convinced they will not issue any watches or warnings the storm is north of the forecast pionts
Member Since: 21.07.2010 Posts: 0 Comments: 738
1360. Levi32 23. elokuuta 2011 klo 00:19 (GMT)    
Quoting Seflhurricane:
levi do you expect any watches for Se fla Yet


If the NHC expects at least tropical storm conditions to move over Florida, with or without a landfall, then watches would be initiated 48 hours before that expected time, which probably wouldn't be until tomorrow morning.
Member Since: 24.11.2005 Posts: 586 Comments: 25439
1361. docrod 23. elokuuta 2011 klo 00:19 (GMT)    
000
WTNT64 KNHC 222348
TCUAT4

HURRICANE IRENE TROPICAL CYCLONE UPDATE
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092011
750 PM AST MON AUG 22 2011

...IRENE NOW A CATEGORY TWO HURRICANE...

REPORTS FROM AN AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT INDICATE
THAT IRENE HAS STRENGTHENED...AND IS NOW A CATEGORY TWO HURRICANE
WITH MAXIMUM SUSTAINED WINDS OF 100 MPH...155 KM/H. DETAILS WILL
FOLLOW IN A SPECIAL ADVISORY TO BE ISSUED BY 815 PM AST...0015 UTC.


SUMMARY OF 750 PM AST...2350 UTC...INFORMATION
------------------------------------------------- -
LOCATION...19.7N 68.7W
ABOUT 200 MI...320 KM SE OF GRAND TURK ISLAND
ABOUT 130 MI...210 KM E OF PUERTO PLATA DOMINICAN REPUBLIC
MAXIMUM SUSTAINED WINDS...100 MPH...155 KM/H
PRESENT MOVEMENT...WNW OR 295 DEGREES AT 10 MPH...17 KM/H
MINIMUM CENTRAL PRESSURE...981 MB...28.97 INCHES

$$
FORECASTER BRENNAN
Member Since: 21.04.2006 Posts: 0 Comments: 557
1363. zparkie 23. elokuuta 2011 klo 00:19 (GMT)    
Its tricky watching direction of hurricanes by satelite, convection can make you think the storm is heading a different direction, all of a sudden the storm bursts and builds giant covection on one side of it and everyone says its going that way, but not really.
Member Since: 25.08.2008 Posts: 0 Comments: 54
1364. presslord 23. elokuuta 2011 klo 00:20 (GMT)    
I wonder if anyone will post the new advisories here...
Member Since: 13.08.2007 Posts: 0 Comments: 10377
1366. washingaway 23. elokuuta 2011 klo 00:20 (GMT)    
Quoting trey33:
Taz - I remember Andrew caught so many of us off guard as it was a nothing storm and then kaboom. So many unprepared. Think the same? (as to being prepared, not path )


I remember Andrew.

Member Since: 14.07.2006 Posts: 0 Comments: 1127
1367. MiamiHurricanes09 23. elokuuta 2011 klo 00:20 (GMT)    
000
WTNT24 KNHC 230019
TCMAT4

HURRICANE IRENE SPECIAL FORECAST/ADVISORY NUMBER 10
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092011
0030 UTC TUE AUG 23 2011

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A HURRICANE WARNING IS IN EFFECT FOR...
* NORTH COAST OF THE DOMINICAN REPUBLIC FROM THE HAITI BORDER
EASTWARD TO CABO ENGANO
* TURKS AND CAICOS ISLANDS...SOUTHEASTERN AND CENTRAL BAHAMAS

A HURRICANE WATCH IS IN EFFECT FOR...
* NORTH COAST OF HAITI FROM LE MOLE ST. NICHOLAS EASTWARD TO THE
DOMINICAN REPUBLIC BORDER
* NORTHWESTERN BAHAMAS

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* SOUTH COAST OF THE DOMINICAN REPUBLIC FROM SANTO DOMINGO EASTWARD
TO CABO ENGANO
* ALL OF HAITI


HURRICANE CENTER LOCATED NEAR 19.7N 68.7W AT 23/0030Z
POSITION ACCURATE WITHIN 15 NM

PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 295 DEGREES AT 9 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 981 MB
MAX SUSTAINED WINDS 85 KT WITH GUSTS TO 100 KT.
64 KT....... 40NE 0SE 0SW 30NW.
50 KT....... 60NE 30SE 20SW 50NW.
34 KT.......160NE 70SE 40SW 90NW.
12 FT SEAS..180NE 60SE 0SW 120NW.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.

REPEAT...CENTER LOCATED NEAR 19.7N 68.7W AT 23/0030Z
AT 22/1800Z CENTER WAS LOCATED NEAR 19.3N 68.1W

FORECAST VALID 23/0600Z 20.1N 70.2W
MAX WIND 95 KT...GUSTS 115 KT.
64 KT... 40NE 10SE 10SW 30NW.
50 KT... 60NE 30SE 20SW 60NW.
34 KT...160NE 75SE 45SW 110NW.

FORECAST VALID 23/1800Z 20.8N 72.5W
MAX WIND 105 KT...GUSTS 130 KT.
64 KT... 45NE 15SE 15SW 35NW.
50 KT... 70NE 40SE 30SW 60NW.
34 KT...160NE 75SE 55SW 120NW.

FORECAST VALID 24/0600Z 21.5N 74.0W
MAX WIND 110 KT...GUSTS 135 KT.
64 KT... 45NE 15SE 15SW 35NW.
50 KT... 70NE 40SE 30SW 60NW.
34 KT...160NE 75SE 55SW 130NW.

FORECAST VALID 24/1800Z 23.0N 75.5W
MAX WIND 110 KT...GUSTS 135 KT.
50 KT... 80NE 50SE 40SW 70NW.
34 KT...160NE 75SE 55SW 130NW.

FORECAST VALID 25/1800Z 26.0N 78.0W
MAX WIND 110 KT...GUSTS 135 KT.
50 KT... 90NE 60SE 40SW 70NW.
34 KT...160NE 90SE 60SW 140NW.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 175 NM
ON DAY 4 AND 225 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY

OUTLOOK VALID 26/1800Z 29.5N 79.0W
MAX WIND 105 KT...GUSTS 130 KT.

OUTLOOK VALID 27/1800Z 34.0N 79.0W...INLAND
MAX WIND 95 KT...GUSTS 115 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 19.7N 68.7W

NEXT ADVISORY AT 23/0300Z

$$
FORECASTER BRENNAN
Member Since: 2.09.2009 Posts: 129 Comments: 19976
1368. kuppenskup 23. elokuuta 2011 klo 00:20 (GMT)    
Just coming in. I live in the South Fla area. Should I say we are all clear? If anything we just receieve outer bands correct?
Member Since: 26.08.2009 Posts: 0 Comments: 404
1369. JamesSA 23. elokuuta 2011 klo 00:20 (GMT)    
That is some unusual land interaction with Hispaniola...

Link
Member Since: 17.08.2009 Posts: 0 Comments: 579
1370. NCHurricane2009 23. elokuuta 2011 klo 00:20 (GMT)    
Quoting AWeatherLover:
Increasing wind speed by 15 knots per NHC call.


Wait...15 knots ABOVE 100 mph?
Member Since: 15.09.2009 Posts: 277 Comments: 3357
1371. blsealevel 23. elokuuta 2011 klo 00:20 (GMT)    
Quoting Tazmanian:
what am not likeing is that i dont think any one in FL is geting ready for this storm or any one in SC or NC when they do at last do the hurricane watch for them it will be like the last sac too get what you need or get out of town



this storm is geting march stronger then forcast plzs start thinking about geting the things you need


Very good point Taz, Keep getting the word out their if you can save one you did your job Thanks
Member Since: 23.08.2008 Posts: 0 Comments: 1916
1373. IpswichWeatherCenter 23. elokuuta 2011 klo 00:20 (GMT)    
Quoting jitterboy:

AST ??


Ignore it, it said 00:15 UTC - now considering in Britain its 01:20 - I really need my bed tbh - its about 5 minutes late.
Member Since: 27.04.2008 Posts: 29 Comments: 2097
1374. robj144 23. elokuuta 2011 klo 00:20 (GMT)    
Quoting cat5hurricane:

Not sure. I'd have to dig out the archives from the NHC's database, which I currently don't have bookmarked at another computer here, and I didn't bring my flashdrive. Floyd was large, but not massive, if I recall.


Here you go:



It was larger than the state of Florida. This storm reminds me a lot of Floyd.
Member Since: 19.08.2008 Posts: 0 Comments: 814
1376. Gorty 23. elokuuta 2011 klo 00:20 (GMT)    
Quoting whepton3:


They came out with the TWO at 8P on the nose... discussion at 8:05.


The intermediate one for Irene.
Member Since: 8.11.2008 Posts: 11 Comments: 1058
1377. Tazmanian 23. elokuuta 2011 klo 00:20 (GMT)    
Quoting AWeatherLover:
Increasing wind speed by 15 knots per NHC call.



other 15kt? it this went from 80 too 100mph wish is 20kt jump are you saying it will go up other 15kt?
Member Since: 21.05.2006 Posts: 5088 Comments: 111306
1378. Thunderpig75 23. elokuuta 2011 klo 00:20 (GMT)    
Quoting IpswichWeatherCenter:


I don't see any - all I see is the slightly pointless 7.50pm update statement.

Why did the NHC not wait 10 more minutes to launch it as an intermediate advisory.


Intermediate is for the whole basin...not just 1 storm.
Member Since: 4.08.2011 Posts: 0 Comments: 98
1379. chrisdscane 23. elokuuta 2011 klo 00:20 (GMT)    
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

NONE.
Member Since: 21.07.2010 Posts: 0 Comments: 738
1380. sunlinepr 23. elokuuta 2011 klo 00:20 (GMT)    
Our first night after Irene...

Member Since: 2.08.2010 Posts: 19 Comments: 8435
1381. bayoubrotha 23. elokuuta 2011 klo 00:20 (GMT)    
Quoting IpswichWeatherCenter:


I don't see any - all I see is the slightly pointless 7.50pm update statement.

Why did the NHC not wait 10 more minutes to launch it as an intermediate advisory.


Hmm. Because they needed more time based on the startling recon data?
Member Since: 15.08.2006 Posts: 0 Comments: 618
1382. tea3781 23. elokuuta 2011 klo 00:21 (GMT)    
Quoting zparkie:
Its tricky watching direction of hurricanes by satelite, convection can make you think the storm is heading a different direction, all of a sudden the storm bursts and builds giant covection on one side of it and everyone says its going that way, but not really.



thats what im saying...its moving WNW...people saying NW, NNW, N are not looking at it right.
Member Since: 29.08.2006 Posts: 0 Comments: 455
1383. BobinTampa 23. elokuuta 2011 klo 00:21 (GMT)    
Quoting kuppenskup:
Just coming in. I live in the South Fla area. Should I say we are all clear? If anything we just receieve outer bands correct?


yeah, what the hell, all clear.
Member Since: 14.08.2008 Posts: 0 Comments: 508
1384. Nolehead 23. elokuuta 2011 klo 00:21 (GMT)    
i just see her staying on this same course and getting just below fl..then what ever trough is coming next should dictate where she goes...but this is just me..or she could go fishing...noone knows..but we will find out soon enough i believe..
Member Since: 3.06.2008 Posts: 0 Comments: 1919
1386. IpswichWeatherCenter 23. elokuuta 2011 klo 00:21 (GMT)    
000
FONT14 KNHC 230019
PWSAT4

HURRICANE IRENE SPECIAL WIND SPEED PROBABILITIES NUMBER 10
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092011
0030 UTC TUE AUG 23 2011

AT 0030Z THE CENTER OF HURRICANE IRENE WAS LOCATED NEAR LATITUDE
19.7 NORTH...LONGITUDE 68.7 WEST WITH MAXIMUM SUSTAINED WINDS NEAR
85 KTS...100 MPH...160 KM/H.

Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH)
ATLANTIC STANDARD TIME (AST)...SUBTRACT 4 HOURS FROM Z TIME
EASTERN DAYLIGHT TIME (EDT)...SUBTRACT 4 HOURS FROM Z TIME
CENTRAL DAYLIGHT TIME (CDT)...SUBTRACT 5 HOURS FROM Z TIME


I. MAXIMUM WIND SPEED (INTENSITY) PROBABILITY TABLE

CHANCES THAT THE MAXIMUM SUSTAINED (1-MINUTE AVERAGE) WIND SPEED OF
THE TROPICAL CYCLONE WILL BE WITHIN ANY OF THE FOLLOWING CATEGORIES
AT EACH OFFICIAL FORECAST TIME DURING THE NEXT 5 DAYS.
PROBABILITIES ARE GIVEN IN PERCENT. X INDICATES PROBABILITIES LESS
THAN 1 PERCENT.


- - - MAXIMUM WIND SPEED (INTENSITY) PROBABILITIES - - -

VALID TIME 06Z TUE 18Z TUE 06Z WED 18Z WED 18Z THU 18Z FRI 18Z SAT
FORECAST HOUR 12 24 36 48 72 96 120
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
DISSIPATED X X X X 1 6 14
TROP DEPRESSION X 1 X 1 1 6 3
TROPICAL STORM 10 2 3 4 12 21 31
HURRICANE 90 97 96 95 87 67 53
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
HUR CAT 1 12 11 11 19 29 30 31
HUR CAT 2 56 34 28 30 27 20 13
HUR CAT 3 21 43 43 32 24 14 7
HUR CAT 4 2 9 14 12 7 3 1
HUR CAT 5 X 1 2 1 1 X X
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
FCST MAX WIND 95KT 105KT 110KT 110KT 110KT 105KT 95KT


II. WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS

CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST
...34 KT (39 MPH... 63 KPH)...
...50 KT (58 MPH... 93 KPH)...
...64 KT (74 MPH...119 KPH)...
FOR LOCATIONS AND TIME PERIODS DURING THE NEXT 5 DAYS

PROBABILITIES FOR LOCATIONS ARE GIVEN AS IP(CP) WHERE
IP IS THE PROBABILITY OF THE EVENT BEGINNING DURING
AN INDIVIDUAL TIME PERIOD (INDIVIDUAL PROBABILITY)
(CP) IS THE PROBABILITY OF THE EVENT OCCURRING BETWEEN
18Z MON AND THE FORECAST HOUR (CUMULATIVE PROBABILITY)

PROBABILITIES ARE GIVEN IN PERCENT
X INDICATES PROBABILITIES LESS THAN 1 PERCENT
PROBABILITIES FOR 34 KT AND 50 KT ARE SHOWN AT A GIVEN LOCATION WHEN
THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 3 PERCENT.
PROBABILITIES FOR 64 KT ARE SHOWN WHEN THE 5-DAY CUMULATIVE
PROBABILITY IS AT LEAST 1 PERCENT.


- - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - -

FROM FROM FROM FROM FROM FROM FROM
TIME 18Z MON 06Z TUE 18Z TUE 06Z WED 18Z WED 18Z THU 18Z FRI
PERIODS TO TO TO TO TO TO TO
06Z TUE 18Z TUE 06Z WED 18Z WED 18Z THU 18Z FRI 18Z SAT

FORECAST HOUR (12) (24) (36) (48) (72) (96) (120)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
LOCATION KT

TRENTON NJ 34 X X( X) X( X) X( X) X( X) X( X) 3( 3)

ATLANTIC CITY 34 X X( X) X( X) X( X) X( X) X( X) 4( 4)

BALTIMORE MD 34 X X( X) X( X) X( X) X( X) X( X) 5( 5)

DOVER DE 34 X X( X) X( X) X( X) X( X) X( X) 6( 6)

ANNAPOLIS MD 34 X X( X) X( X) X( X) X( X) X( X) 6( 6)

WASHINGTON DC 34 X X( X) X( X) X( X) X( X) X( X) 7( 7)

OCEAN CITY MD 34 X X( X) X( X) X( X) X( X) X( X) 9( 9)

RICHMOND VA 34 X X( X) X( X) X( X) X( X) X( X) 15(15)
RICHMOND VA 50 X X( X) X( X) X( X) X( X) X( X) 3( 3)

NORFOLK NAS 34 X X( X) X( X) X( X) X( X) 1( 1) 17(18)
NORFOLK NAS 50 X X( X) X( X) X( X) X( X) X( X) 4( 4)

NORFOLK VA 34 X X( X) X( X) X( X) X( X) 1( 1) 17(18)
NORFOLK VA 50 X X( X) X( X) X( X) X( X) X( X) 4( 4)

GREENSBORO NC 34 X X( X) X( X) X( X) X( X) 1( 1) 18(19)
GREENSBORO NC 50 X X( X) X( X) X( X) X( X) X( X) 3( 3)

RALEIGH NC 34 X X( X) X( X) X( X) X( X) 1( 1) 24(25)
RALEIGH NC 50 X X( X) X( X) X( X) X( X) X( X) 6( 6)

CAPE HATTERAS 34 X X( X) X( X) X( X) X( X) 4( 4) 24(28)
CAPE HATTERAS 50 X X( X) X( X) X( X) X( X) X( X) 9( 9)
CAPE HATTERAS 64 X X( X) X( X) X( X) X( X) X( X) 3( 3)

CHARLOTTE NC 34 X X( X) X( X) X( X) X( X) 2( 2) 19(21)
CHARLOTTE NC 50 X X( X) X( X) X( X) X( X) X( X) 3( 3)

MOREHEAD CITY 34 X X( X) X( X) X( X) X( X) 7( 7) 30(37)
MOREHEAD CITY 50 X X( X) X( X) X( X) X( X) 1( 1) 13(14)
MOREHEAD CITY 64 X X( X) X( X) X( X) X( X) X( X) 5( 5)

WILMINGTON NC 34 X X( X) X( X) X( X) X( X) 9( 9) 33(42)
WILMINGTON NC 50 X X( X) X( X) X( X) X( X) 1( 1) 15(16)
WILMINGTON NC 64 X X( X) X( X) X( X) X( X) X( X) 6( 6)

COLUMBIA SC 34 X X( X) X( X) X( X) X( X) 6( 6) 25(31)
COLUMBIA SC 50 X X( X) X( X) X( X) X( X) X( X) 7( 7)

MYRTLE BEACH 34 X X( X) X( X) X( X) X( X) 13(13) 34(47)
MYRTLE BEACH 50 X X( X) X( X) X( X) X( X) 2( 2) 18(20)
MYRTLE BEACH 64 X X( X) X( X) X( X) X( X) X( X) 7( 7)

CHARLESTON SC 34 X X( X) X( X) X( X) 1( 1) 18(19) 30(49)
CHARLESTON SC 50 X X( X) X( X) X( X) X( X) 4( 4) 15(19)
CHARLESTON SC 64 X X( X) X( X) X( X) X( X) 1( 1) 6( 7)

ATLANTA GA 34 X X( X) X( X) X( X) X( X) 1( 1) 6( 7)

AUGUSTA GA 34 X X( X) X( X) X( X) X( X) 6( 6) 17(23)
AUGUSTA GA 50 X X( X) X( X) X( X) X( X) X( X) 4( 4)

SAVANNAH GA 34 X X( X) X( X) X( X) 1( 1) 18(19) 21(40)
SAVANNAH GA 50 X X( X) X( X) X( X) X( X) 4( 4) 10(14)
SAVANNAH GA 64 X X( X) X( X) X( X) X( X) 1( 1) 3( 4)

MAYPORT NS 34 X X( X) X( X) X( X) 2( 2) 28(30) 12(42)
MAYPORT NS 50 X X( X) X( X) X( X) X( X) 8( 8) 7(15)
MAYPORT NS 64 X X( X) X( X) X( X) X( X) 3( 3) 2( 5)

JACKSONVILLE 34 X X( X) X( X) X( X) 2( 2) 24(26) 11(37)
JACKSONVILLE 50 X X( X) X( X) X( X) X( X) 6( 6) 5(11)
JACKSONVILLE 64 X X( X) X( X) X( X) X( X) 2( 2) 1( 3)

DAYTONA BEACH 34 X X( X) X( X) X( X) 10(10) 32(42) 8(50)
DAYTONA BEACH 50 X X( X) X( X) X( X) 1( 1) 12(13) 4(17)
DAYTONA BEACH 64 X X( X) X( X) X( X) X( X) 4( 4) 2( 6)

ORLANDO FL 34 X X( X) X( X) X( X) 12(12) 29(41) 5(46)
ORLANDO FL 50 X X( X) X( X) X( X) 2( 2) 10(12) 2(14)
ORLANDO FL 64 X X( X) X( X) X( X) X( X) 2( 2) X( 2)

COCOA BEACH FL 34 X X( X) X( X) X( X) 21(21) 34(55) 4(59)
COCOA BEACH FL 50 X X( X) X( X) X( X) 3( 3) 19(22) 2(24)
COCOA BEACH FL 64 X X( X) X( X) X( X) 1( 1) 6( 7) 1( 8)

PATRICK AFB 34 X X( X) X( X) X( X) 20(20) 34(54) 4(58)
PATRICK AFB 50 X X( X) X( X) X( X) 3( 3) 19(22) 2(24)
PATRICK AFB 64 X X( X) X( X) X( X) 1( 1) 6( 7) 1( 8)

FT PIERCE FL 34 X X( X) X( X) X( X) 32(32) 29(61) 2(63)
FT PIERCE FL 50 X X( X) X( X) X( X) 7( 7) 20(27) 1(28)
FT PIERCE FL 64 X X( X) X( X) X( X) 2( 2) 8(10) X(10)

W PALM BEACH 34 X X( X) X( X) 1( 1) 40(41) 22(63) 1(64)
W PALM BEACH 50 X X( X) X( X) X( X) 13(13) 15(28) 1(29)
W PALM BEACH 64 X X( X) X( X) X( X) 4( 4) 8(12) X(12)

MIAMI FL 34 X X( X) X( X) 2( 2) 37(39) 13(52) 1(53)
MIAMI FL 50 X X( X) X( X) X( X) 12(12) 9(21) X(21)
MIAMI FL 64 X X( X) X( X) X( X) 3( 3) 5( 8) X( 8)

MARATHON FL 34 X X( X) X( X) 1( 1) 18(19) 6(25) X(25)
MARATHON FL 50 X X( X) X( X) X( X) 4( 4) 3( 7) X( 7)
MARATHON FL 64 X X( X) X( X) X( X) 2( 2) 1( 3) X( 3)

KEY WEST FL 34 X X( X) X( X) X( X) 12(12) 5(17) X(17)
KEY WEST FL 50 X X( X) X( X) X( X) 3( 3) 1( 4) X( 4)
KEY WEST FL 64 X X( X) X( X) X( X) X( X) 2( 2) X( 2)

MARCO ISLAND 34 X X( X) X( X) X( X) 16(16) 11(27) 1(28)
MARCO ISLAND 50 X X( X) X( X) X( X) 2( 2) 5( 7) X( 7)
MARCO ISLAND 64 X X( X) X( X) X( X) X( X) 3( 3) X( 3)

FT MYERS FL 34 X X( X) X( X) X( X) 14(14) 13(27) 1(28)
FT MYERS FL 50 X X( X) X( X) X( X) 1( 1) 5( 6) 1( 7)
FT MYERS FL 64 X X( X) X( X) X( X) X( X) 2( 2) 1( 3)

VENICE FL 34 X X( X) X( X) X( X) 7( 7) 12(19) 1(20)
VENICE FL 50 X X( X) X( X) X( X) X( X) 5( 5) X( 5)
VENICE FL 64 X X( X) X( X) X( X) X( X) 2( 2) X( 2)

TAMPA FL 34 X X( X) X( X) X( X) 5( 5) 15(20) 3(23)
TAMPA FL 50 X X( X) X( X) X( X) X( X) 4( 4) 1( 5)
TAMPA FL 64 X X( X) X( X) X( X) X( X) 2( 2) X( 2)

CEDAR KEY FL 34 X X( X) X( X) X( X) 2( 2) 13(15) 4(19)
CEDAR KEY FL 50 X X( X) X( X) X( X) X( X) 2( 2) 2( 4)
CEDAR KEY FL 64 X X( X) X( X) X( X) X( X) 1( 1) X( 1)

TALLAHASSEE FL 34 X X( X) X( X) X( X) X( X) 6( 6) 4(10)

ST MARKS FL 34 X X( X) X( X) X( X) X( X) 7( 7) 4(11)

APALACHICOLA 34 X X( X) X( X) X( X) X( X) 5( 5) 3( 8)

GFMX 290N 850W 34 X X( X) X( X) X( X) X( X) 6( 6) 2( 8)

PANAMA CITY FL 34 X X( X) X( X) X( X) X( X) 3( 3) 3( 6)

COLUMBUS GA 34 X X( X) X( X) X( X) X( X) 1( 1) 5( 6)

MONTGOMERY AL 34 X X( X) X( X) X( X) X( X) X( X) 3( 3)

GRAND BAHAMA 34 X X( X) X( X) 5( 5) 60(65) 15(80) 1(81)
GRAND BAHAMA 50 X X( X) X( X) X( X) 33(33) 17(50) 1(51)
GRAND BAHAMA 64 X X( X) X( X) X( X) 14(14) 12(26) X(26)

NEW PROVIDENCE 34 X X( X) 3( 3) 22(25) 58(83) 4(87) X(87)
NEW PROVIDENCE 50 X X( X) X( X) 5( 5) 51(56) 3(59) X(59)
NEW PROVIDENCE 64 X X( X) X( X) 1( 1) 30(31) 2(33) X(33)

ANDROS 34 X X( X) 5( 5) 31(36) 41(77) 2(79) X(79)
ANDROS 50 X X( X) X( X) 9( 9) 40(49) 2(51) X(51)
ANDROS 64 X X( X) X( X) 2( 2) 24(26) 1(27) X(27)

GREAT EXUMA 34 X 4( 4) 25(29) 55(84) 9(93) X(93) X(93)
GREAT EXUMA 50 X X( X) 4( 4) 45(49) 20(69) X(69) X(69)
GREAT EXUMA 64 X X( X) 1( 1) 25(26) 16(42) X(42) X(42)

SAN SALVADOR 34 X 5( 5) 27(32) 46(78) 6(84) X(84) X(84)
SAN SALVADOR 50 X X( X) 3( 3) 29(32) 9(41) X(41) X(41)
SAN SALVADOR 64 X X( X) X( X) 12(12) 6(18) X(18) X(18)

MAYAGUANA 34 2 65(67) 22(89) 3(92) X(92) X(92) X(92)
MAYAGUANA 50 X 8( 8) 31(39) 4(43) X(43) X(43) X(43)
MAYAGUANA 64 X 1( 1) 15(16) 3(19) X(19) X(19) X(19)

GRAND TURK 34 53 43(96) 1(97) X(97) X(97) X(97) X(97)
GRAND TURK 50 2 37(39) 2(41) X(41) X(41) X(41) X(41)
GRAND TURK 64 X 12(12) 1(13) X(13) X(13) X(13) X(13)

HAVANA 34 X X( X) X( X) X( X) 5( 5) 1( 6) X( 6)

CIENFUEGOS 34 X X( X) 1( 1) 1( 2) 8(10) 1(11) X(11)

CAMAGUEY 34 X 1( 1) 5( 6) 11(17) 8(25) 1(26) X(26)
CAMAGUEY 50 X X( X) X( X) 2( 2) 3( 5) X( 5) X( 5)

GUANTANAMO BAY 34 1 6( 7) 26(33) 6(39) 1(40) X(40) X(40)
GUANTANAMO BAY 50 X 1( 1) 5( 6) 3( 9) X( 9) X( 9) X( 9)
GUANTANAMO BAY 64 X X( X) 2( 2) 1( 3) X( 3) X( 3) X( 3)

MONTEGO BAY 34 X X( X) 2( 2) 2( 4) 1( 5) X( 5) X( 5)

KINGSTON 34 X 1( 1) 2( 3) 1( 4) 1( 5) X( 5) X( 5)

LES CAYES 34 1 4( 5) 4( 9) 2(11) X(11) X(11) X(11)

PORT-AU-PRINCE 34 2 7( 9) 4(13) 1(14) X(14) X(14) X(14)
PORT-AU-PRINCE 50 1 1( 2) 1( 3) X( 3) X( 3) X( 3) X( 3)

CAPE BEATA 34 2 2( 4) 2( 6) X( 6) X( 6) X( 6) X( 6)

PUERTO PLATA 34 90 7(97) X(97) X(97) X(97) X(97) X(97)
PUERTO PLATA 50 35 31(66) X(66) X(66) X(66) X(66) X(66)
PUERTO PLATA 64 12 24(36) X(36) X(36) X(36) X(36) X(36)

SANTO DOMINGO 34 5 2( 7) 2( 9) X( 9) X( 9) X( 9) X( 9)

$$
FORECASTER BRENNAN
Member Since: 27.04.2008 Posts: 29 Comments: 2097
1387. Patrap 23. elokuuta 2011 klo 00:21 (GMT)    
Quoting FLWeatherFreak91:
Too bad no one can find that Punta Cana radar we used to use.


Cuba Eastern Radar
Member Since: 3.07.2005 Posts: 370 Comments: 111244
1388. Verdog 23. elokuuta 2011 klo 00:22 (GMT)    
Member Since: 2.08.2011 Posts: 1 Comments: 15
1389. ncstorm 23. elokuuta 2011 klo 00:22 (GMT)    
Member Since: 19.08.2006 Posts: 7 Comments: 8311
1390. FSUCOOPman 23. elokuuta 2011 klo 00:22 (GMT)    
Quoting sunlinepr:
Our first night after Irene...



"Good night, Irene..."
Member Since: 29.08.2008 Posts: 0 Comments: 331
1391. cjswilmingtoneye 23. elokuuta 2011 klo 00:22 (GMT)    
Have you guys seen the 7:50 update on Irene? I noticed no one had mentioned it.

..IRENE NOW A CATEGORY TWO HURRICANE...

REPORTS FROM AN AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT INDICATE
THAT IRENE HAS STRENGTHENED...AND IS NOW A CATEGORY TWO HURRICANE
WITH MAXIMUM SUSTAINED WINDS OF 100 MPH...155 KM/H. DETAILS WILL
FOLLOW IN A SPECIAL ADVISORY TO BE ISSUED BY 815 PM AST...0015 UTC.


SUMMARY OF 750 PM AST...2350 UTC...INFORMATION
------------------------------------------------- -
LOCATION...19.7N 68.7W
ABOUT 200 MI...320 KM SE OF GRAND TURK ISLAND
ABOUT 130 MI...210 KM E OF PUERTO PLATA DOMINICAN REPUBLIC
MAXIMUM SUSTAINED WINDS...100 MPH...155 KM/H
PRESENT MOVEMENT...WNW OR 295 DEGREES AT 10 MPH...17 KM/H
MINIMUM CENTRAL PRESSURE...981 MB...28.97 INCHES

$$
FORECASTER BRENNAN
Member Since: 1.06.2009 Posts: 0 Comments: 107
1392. killdevilmax 23. elokuuta 2011 klo 00:22 (GMT)    
Taz,
Daughter in Wilmington, son in Raleigh, and us in Kill Devil Hills, NC are preparing Cat 3, size large, that we are going to get a taste of and we are ready. Storm is very big, growing and will intenify so I don't see any getting out of impact whether it lands in SC or skirts Hatteras. Don't anyone dare call me a wishcaster. Rode all out here since 1988. This one is looking like Floyd. The sound went dry and then the backside brought the SLOSH up 7' in 45 minutes.
Member Since: 28.08.2005 Posts: 0 Comments: 322
1393. whepton3 23. elokuuta 2011 klo 00:22 (GMT)    
Quoting IpswichWeatherCenter:


I don't see any - all I see is the slightly pointless 7.50pm update statement.

Why did the NHC not wait 10 more minutes to launch it as an intermediate advisory.


Tropical Weather Outlook Issued 8P:

Link

Tropical Weather Discussion Issued 8:05:

Link

Full updates on the storm are normally at 5 and 11 AM and PM EDT.

special coming any moment regarding Hurricane Irene.
Member Since: 19.07.2010 Posts: 0 Comments: 637
1394. IpswichWeatherCenter 23. elokuuta 2011 klo 00:22 (GMT)    


Interesting track.
Member Since: 27.04.2008 Posts: 29 Comments: 2097
1395. ncstorm 23. elokuuta 2011 klo 00:22 (GMT)    
Member Since: 19.08.2006 Posts: 7 Comments: 8311
1396. Hurricanes101 23. elokuuta 2011 klo 00:23 (GMT)    
They didn't change the track, they updated the intensity forecast
Member Since: 10.03.2010 Posts: 1 Comments: 6902
1397. Seflhurricane 23. elokuuta 2011 klo 00:23 (GMT)    
track remains the same for the 830 advisory
Member Since: 14.07.2009 Posts: 0 Comments: 2898
1398. robj144 23. elokuuta 2011 klo 00:23 (GMT)    
Quoting cat5hurricane:

OMG! Now I'm really mad I didn't bring my database along. Okay, he was "massive"! LOL


Just Googled it, and Floyd's tropical storm force winds had a diameter of 580 miles.
Member Since: 19.08.2008 Posts: 0 Comments: 814
1399. victoriahurricane 23. elokuuta 2011 klo 00:23 (GMT)    
Quoting Levi32:


That is unlikely given a central pressure of only 982mb. A Cat 3 just about always has a pressure under 970mb.


Well as we saw with Alex with lower winds then the pressure indicated is it possible for vice versa: there to be higher winds then the pressure indicates?
Member Since: 16.10.2008 Posts: 0 Comments: 544
1400. enthusiast 23. elokuuta 2011 klo 00:23 (GMT)    
Quoting BahaHurican:
Went off-blog for a few to watch our local weather. So far NO hype whatsoever on the storm... this is quite amazing. I'm going to be very interested to see what happens tomorrow when pple in the NW start hearing calls from pple in the SE about the storm... less than 24 hours before it's due to arrive. I'd lol, but it won't be pretty....


Food stores were packed tonight and had to go to 3 store before I got the last of their water.
Member Since: 21.08.2011 Posts: 0 Comments: 0
1401. NICycloneChaser 23. elokuuta 2011 klo 00:23 (GMT)    
Quoting cjswilmingtoneye:
Have you guys seen the 7:50 update on Irene? I noticed no one had mentioned it.

..IRENE NOW A CATEGORY TWO HURRICANE...

REPORTS FROM AN AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT INDICATE
THAT IRENE HAS STRENGTHENED...AND IS NOW A CATEGORY TWO HURRICANE
WITH MAXIMUM SUSTAINED WINDS OF 100 MPH...155 KM/H. DETAILS WILL
FOLLOW IN A SPECIAL ADVISORY TO BE ISSUED BY 815 PM AST...0015 UTC.


SUMMARY OF 750 PM AST...2350 UTC...INFORMATION
------------------------------------------------- -
LOCATION...19.7N 68.7W
ABOUT 200 MI...320 KM SE OF GRAND TURK ISLAND
ABOUT 130 MI...210 KM E OF PUERTO PLATA DOMINICAN REPUBLIC
MAXIMUM SUSTAINED WINDS...100 MPH...155 KM/H
PRESENT MOVEMENT...WNW OR 295 DEGREES AT 10 MPH...17 KM/H
MINIMUM CENTRAL PRESSURE...981 MB...28.97 INCHES

$$
FORECASTER BRENNAN


Fear not, it's been posted many times already.
Member Since: 10.08.2010 Posts: 2 Comments: 1956

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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.

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